CN108377554B - Method, terminal and network side node for recovering data transmission - Google Patents

Abstract

Translated fromChinese

本发明实施例提供一种恢复数据传输的方法、终端和网络侧节点，该方法可包括：若终端与网络侧节点之间进行业务传输的高频波束的通信链路异常，所述终端接收所述网络侧节点发送的指示至少一个波束集合的触发信令；所述终端通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输；其中，所述目标波束为所述终端或者所述网络侧节点在所述至少一个波束集合中确定的目标波束。从而在通信链路异常时，不需要发起RRC重建，直接可以使用上述目标波束恢复业务的数据传输，这样本发明实施例可以降低通信链路出现异常后到恢复数据传输之间时延。

Embodiments of the present invention provide a method, a terminal, and a network side node for resuming data transmission. The method may include: if the communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal receives the The trigger signaling indicating at least one beam set sent by the network side node; the terminal restores the data transmission of the service through the target beam in the at least one beam set; wherein, the target beam is the terminal or the The target beam determined by the network side node in the at least one beam set. Therefore, when the communication link is abnormal, RRC reconstruction does not need to be initiated, and the above target beam can be used directly to restore the data transmission of the service. In this way, the embodiment of the present invention can reduce the delay between the abnormality of the communication link and the restoration of data transmission.

Description

Method, terminal and network side node for recovering data transmission

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a network side node for recovering data transmission.

Background

Since the high frequency band has rich idle frequency resources, which can provide greater throughput for data transmission, the third Generation Partnership Project (3 GPP) has completed high frequency channel modeling work. Compared with a low frequency band, the high frequency band has a short wavelength of a high frequency signal, more antenna array elements can be arranged on a panel with the same size, and a beam with stronger directivity and narrower lobes is formed by utilizing a beam forming technology. Therefore, it is one of the future trends to combine large-scale antennas with high-frequency communication. However, since the high frequency beam of the massive antenna is narrow, the communication link of the high frequency beam may be easily abnormal, such as: when the terminal is blocked by an object or the terminal is rotated, the communication link of the high-frequency beam is likely to be broken, and the reception quality or the reception power is likely to be deteriorated. However, in the current communication system, after the communication link of the high frequency beam is determined to be abnormal, Radio Resource Control (RRC) reestablishment needs to be initiated, and then beam training is performed to find the optimal beam, so that data transmission is resumed using the optimal beam. It can be seen that there is a long time delay between the time when the communication link is abnormal and the time when the data transmission is resumed.

Disclosure of Invention

The embodiment of the invention provides a method, a terminal and a network side node for recovering data transmission, which aim to solve the problem that long time delay exists between the time when a communication link is abnormal and the time when the data transmission is recovered.

In a first aspect, an embodiment of the present invention provides a method for recovering data transmission, including:

if a communication link of a high-frequency wave beam for service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling which indicates at least one wave beam set and is sent by the network side node;

the terminal recovers data transmission of the service through a target beam in the at least one beam set;

wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

In a second aspect, an embodiment of the present invention provides a method for recovering data transmission, including:

if a communication link of a high-frequency wave beam for service transmission between a network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one wave beam set to the terminal;

the network side node recovers data transmission of the service through a target beam in the at least one beam set;

wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

In a third aspect, an embodiment of the present invention provides a terminal, including:

a trigger signaling receiving module, configured to receive a trigger signaling indicating at least one beam set sent by a network side node if a communication link of a high-frequency beam for performing service transmission between the terminal and the network side node is abnormal;

a first data transmission recovery module, configured to recover data transmission of the service through a target beam in the at least one beam set;

wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

In a fourth aspect, an embodiment of the present invention provides a network side node, including:

a trigger signaling sending module, configured to send a trigger signaling indicating at least one beam set to a terminal if a communication link of a high-frequency beam for performing service transmission between the network side node and the terminal is abnormal;

a second data transmission recovery module, configured to recover data transmission of the service through a target beam in the at least one beam set;

wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

In this way, in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a network architecture diagram to which embodiments of the present invention are applicable;

fig. 2 is a flowchart of a method for resuming data transmission according to a first embodiment of the present invention;

fig. 3 is a flowchart of a method for resuming data transmission according to a second embodiment of the present invention;

fig. 4 is a schematic beam diagram between a terminal and a network node according to a second embodiment of the present invention;

fig. 5 is a signaling diagram of a method for resuming data transmission according to a second embodiment of the present invention;

fig. 6 is a flowchart of a method for resuming data transmission according to a third embodiment of the present invention;

fig. 7 is a flowchart of a method for resuming data transmission according to a fourth embodiment of the present invention;

fig. 8 is one of the structural diagrams of a terminal provided in a fifth embodiment of the present invention;

fig. 9 is a second block diagram of a terminal according to a fifth embodiment of the present invention;

fig. 10 is one of structural diagrams of a first reference signal transmission module of a terminal according to a fifth embodiment of the present invention;

fig. 11 is a second block diagram of a first reference signal transmission module of a terminal according to a fifth embodiment of the present invention;

fig. 12 is a third structural view of a terminal according to a fifth embodiment of the present invention;

fig. 13 is a fourth of the structural view of a terminal provided in a fifth embodiment of the present invention;

fig. 14a is a fifth structural view of a terminal provided in a fifth embodiment of the present invention;

fig. 14b is a sixth structural view of a terminal according to a fifth embodiment of the present invention;

fig. 15 is a seventh structural view of a terminal provided in a fifth embodiment of the present invention;

fig. 16 is one of the structural diagrams of a network side node according to a sixth embodiment of the present invention;

fig. 17 is a second block diagram of a network node according to a sixth embodiment of the present invention;

fig. 18 is one of the structural diagrams of a second reference signal transmission module of a network side node according to a sixth embodiment of the present invention;

fig. 19 is a second block diagram of a second reference signal transmission module of a network node according to a sixth embodiment of the present invention;

fig. 20 is a third block diagram of a network node according to a sixth embodiment of the present invention;

fig. 21 is a fourth structural diagram of a network node according to a sixth embodiment of the present invention;

fig. 22a is a fifth embodiment of a structure diagram of a network node according to the present invention;

fig. 22b is a sixth structural diagram of a network node according to a sixth embodiment of the present invention;

fig. 23 is a seventh structural diagram of a network node according to a sixth embodiment of the present invention;

fig. 24 is an eighth block diagram of a network node according to a sixth embodiment of the present invention;

fig. 25 is a block diagram of a terminal provided in a seventh embodiment of the present invention;

fig. 26 is a structural view of a terminal provided in an eighth embodiment of the present invention;

fig. 27 is a block diagram of a network side node according to a ninth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a network structure diagram applicable to the embodiment of the present invention, and as shown in fig. 1, the network structure diagram includes a terminal 11 and anetwork side node 12, where the terminal may be a User Equipment (UE), for example: the terminal may be a terminal side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present invention. The terminal 11 may establish communication with the network-side node 12, where the network in the figure may indicate that the terminal 11 wirelessly establishes communication with the network-side node 12, and the network-side node 12 may be a Transmission Reception Point (TRP), or may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NR NB, or the like. The network-side node 12 may alternatively be an Access Point (AP). It should be noted that the specific type of the network-side node 12 is not limited in the embodiment of the present invention.

First embodiment

Referring to fig. 2, fig. 2 is a flowchart of a method for resuming data transmission according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

step 201, if a communication link of a high-frequency beam for service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node.

In this embodiment of the present invention, the high frequency beam may be a beam higher than a certain frequency threshold, for example: it may be a beam with a frequency between 6GHz and 100GHz, but of course, it may also be a beam with other frequencies, for example: 1GHz or 3GHz or 5GHz, etc. It should be noted that, in the embodiment of the present invention, specific frequencies of the high-frequency beam are not limited, and the high-frequency beam should be understood as a high-frequency beam understood by those skilled in the art. The high-frequency beam may be a beam having a lobe narrower than a lobe threshold, and similarly, the embodiment of the present invention is not limited to this lobe threshold.

The high-frequency beam for performing service transmission between the terminal and the network-side node may be a high-frequency beam for currently transmitting a service between the terminal and the network-side node, for example: the beams carrying 5G network traffic. The communication link abnormality of the high-frequency beam may be an abnormality affecting service transmission in a communication link established between the terminal and the network side node on the high-frequency beam, for example: communication link is broken, transmission quality is reduced, signal strength is reduced, and other abnormalities affecting service transmission.

In case of an abnormal communication link, the terminal receives the trigger signaling sent by the network side node, where the trigger signaling indicates at least one beam set, where each beam set includes at least one beam, and the beams included in the beam sets may be high-frequency beams or low-frequency beams, including both high-frequency beams and low-frequency beams.

In addition, the communication link abnormality may be discovered by a terminal, or may be discovered by a network side node, which is not limited in this embodiment of the present invention.

Step 202, the terminal recovers the data transmission of the service through the target beam in the at least one beam set.

Wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

After the terminal receives the trigger signaling, the at least one beam set and the beams included in the set may be determined, so that the target beam may be determined in the beams. The network side node may notify the terminal after determining the target beam in the at least one beam set, so that the terminal finds the target beam in the at least one beam set. The target beam may be one or more high-frequency beams (also referred to as narrow beams), or the target beam may be one or more low-frequency beams.

And when the terminal confirms the target wave beam, the data transmission of the service can be recovered through the target wave beam. Here, the recovery may be data transmission between the terminal and the network side node through the target beam to recover the service. In addition, the data transmission for resuming the service may be data transmission for the service starting from a time when the communication link is abnormal, for example: when the terminal and the network side node are in chain breakage during the transmission of the Tth data packet, namely the Tth data transmission fails, the data transmission can be recovered from the Tth data packet. Or the data transmission of the recovery service may be performed with the first n data packets when the communication link is abnormal as a starting point, for example: when the terminal and the network side node are in chain breakage during the transmission of the Tth data packet, namely the Tth data transmission fails, the data transmission can be recovered from the Tth-n data packet.

Through the steps, RRC reconstruction is not needed to be initiated between the time when the communication link of the high-frequency wave beam for service transmission between the terminal and the network side node is abnormal and the time when the data transmission of the service is recovered, so that the data transmission delay can be reduced, and the user experience can be improved.

In the method for recovering data transmission provided by the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience can be improved.

Second embodiment

Referring to fig. 3, fig. 3 is a flowchart of a method for resuming data transmission according to an embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:

step 301, if a communication link of a high-frequency beam for service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node.

The trigger signaling may be trigger signaling, and in addition, the trigger signaling may be sent by the network side node through Downlink Control Information (DCI). In addition, the trigger signaling may be understood as signaling for triggering and starting a beam fast recovery mechanism, that is, the beam fast recovery mechanism may be started based on the signaling in the embodiment of the present invention.

Optionally, the step of receiving, by the terminal, a trigger signaling indicating at least one beam set sent by the network side node includes: the terminal receives a trigger signaling which indicates at least one beam set and is sent by the network side node through physical layer downlink control information at a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

The step can realize the transmission of the trigger signaling through a wide beam or a low-frequency beam or a plurality of narrow beams. The wide beam is pre-negotiated with the network side node or notified by the network side node, so that the terminal can be ensured to receive the trigger signaling on the band beam, and the waste of transmission resources caused by the fact that the terminal does not know which resource position to receive the trigger signaling is avoided, and the purpose of saving the transmission resources is achieved. In addition, since the lobe of the wide beam is wider than the lobe of the high-frequency beam and covers the beam of the terminal, the transmission of the trigger signaling on the wide beam is not easy to fail, so that the success rate of receiving the trigger signaling can be improved.

The low-frequency wave beam is pre-negotiated between the terminal and the network side node or notified by the network side node, so that the terminal can be ensured to receive the trigger signaling on the wave beam, the waste of transmission resources caused by the fact that the terminal does not know which resource position to receive the trigger signaling is avoided, and the purpose of saving the transmission resources is achieved. In addition, because the frequency is lower than that of the high-frequency wave beam and covers the wave beam of the terminal, and the low-frequency signal has the characteristics of longer wavelength and strong diffraction capability, the success rate of transmitting data by the low-frequency wave beam is higher than that of the high-frequency wave beam, so that the success rate of receiving the trigger signaling can be improved.

The narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, so that the terminal can be ensured to receive the trigger signaling on the beam, and the waste of transmission resources caused by the fact that the terminal does not know which resource position to receive the trigger signaling is avoided, and the purpose of saving the transmission resources is achieved. In addition, as a plurality of narrow beams are used for transmitting the trigger signaling, the success rate of receiving the trigger signaling can be improved. The sending of the trigger signaling through the multiple narrow beams may be that the multiple narrow beams send the trigger signaling simultaneously, and may be that the same trigger signaling is sent simultaneously, so as to improve the success rate of the terminal for receiving the trigger signaling.

Optionally, the trigger signaling includes transmission pattern information (pattern) of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

In the embodiment of the present invention, the reference signal may be referred to as a Beam Recovery Reference Signal (BRRS), for example: the Reference Signal may be a Sounding Reference Signal (SRS), a demodulation Reference Signal (DMRS), or other new Reference signals (RS, Reference Signal). For using SRS or DMRS as BRRS, the resource location for beam recovery may be different from that in existing protocols, e.g.: some subcarriers in the 1 st symbol are used.

In this embodiment, it can be realized that the sending pattern information may be sent to the terminal by the network side node through the trigger signaling, so that flexibility of sending pattern information can be improved, for example: the network side node may determine the transmission pattern information according to the status of the network resource to adapt to the current network status. And when the trigger signaling indicates the sending pattern information agreed by the network side node and the terminal in advance, the signaling overhead can be saved, so that in this case, the trigger signaling only needs to include one indication without including the sending pattern information.

In addition, the sending pattern information indicates the sequence of the reference signal transmission between the terminal and the network side node, so that the terminal and the network side node can be ensured to effectively receive the reference signal sent by the other side.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

By preferentially sending the sequence of the high-frequency beams in the at least one beam set, the method can preferentially select the proper high-frequency beam as the target beam, so that the selected target beam is closer to the high-frequency beam with the abnormal communication link, and the data transmission of the recovered service can better meet the requirements of the terminal.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or the high-frequency wave beams are taken as the center and are transmitted from far to near according to the space direction; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is alternated according to the space direction.

The original beam set including the high-frequency beam, which is maintained by the terminal in advance, may be a beam set maintained by the terminal and a network side node together, and the beam set may be an uplink or downlink beam set. And there may be several beam ids and received power strengths obtained through beam training in the set. The number of beams in the set includes the best beam found in the beam training, the next best beam, and so on.

For example: as shown in fig. 4, the network side node and the terminal originally use a black beam for data transmission. When the beam is blocked, the network side node recovers the downlink beam, and the transmission pattern information pattern of the reference signal triggered by the network side node may perform transmission of the reference signal from near to far, for example, transmit the beams in the sequence of number 1-2-3-4, sequentially centering on the primary beam in the primary beam set. Therefore, the beam close to the original beam can be measured quickly, and the beam close to the original beam is more suitable to be used as the beam for recovering the service, namely the target beam. Therefore, the beams close to the original beams are preferentially measured, so that the target beams can be quickly selected, excessive reference signal measurement operation is avoided, and energy consumption of the terminal is saved. Similarly, the transmission order from far to near in spatial bearing with the high-frequency beam as the center can also be realized, for example: in fig. 4, the transmission sequence is beam number 4-3-2-1.

In addition, it is also possible to realize a transmission order in which the high-frequency beams are spatially oriented in a far-near alternating manner. And the terminal is also utilized to quickly select the target beam so as to avoid excessive reference signal measurement operation and save the energy consumption of the terminal. For example: if the terminal rotation would also cause the primary beam to be broken, then the narrow beam near the primary beam is likely to deviate from the optimal transmission direction, so that the reference signals can be transmitted alternately far and near in the beam set, e.g., beams 1-4-2-3 in the transmission order.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

In this embodiment, a target beam set that is transmitted preferentially, that is, a beam set other than the primary beam set, may be implemented. Assuming that the number of the previous used primary beam set is 1, and the at least one target beam set includes set 2 and set 3, the beams of beam set 2 may be preferentially transmitted, the beams of beam set 3 may be transmitted, or the beams in beam set 2 and beam set 3 may be transmitted alternately, i.e., the first beam of beam set 2-the 2 nd beam of the 2 nd beam-beam set 3 of the first beam-beam set 3 of beam set 2-the 2 nd beam of the 2 nd beam-beam set 3 of beam set 2, and so on. Due to the fact that the target beam set is sent preferentially, other beams except the original beam set can be measured preferentially, and therefore the target beam can be selected rapidly under the situation that the beams in the original beam set are not suitable for being used as the target beam, and energy consumption of the terminal is saved.

Step 302, the terminal transmits a reference signal through a beam in the at least one beam set.

In this step, the reference signal is transmitted, which may be understood as a reference signal transmitted between the terminal and the network side node. For the downlink beam, the network side node may send a reference signal to the terminal, and the terminal selects a target beam according to the measurement of the reference signal. And for the uplink beam, the terminal sends a reference signal to the network side node, and the network side node selects a target beam according to the measurement of the reference signal.

Optionally, the step of the terminal transmitting the reference signal through the beam in the at least one beam set includes: the terminal sends a reference signal to the network side node on an uplink beam in the at least one beam set; and the terminal receives feedback information which is sent by the network side node and indicates the target wave beam, wherein the target wave beam is an uplink wave beam determined by the network side node according to a measurement result of measuring a reference signal transmitted by the terminal.

The order in which the terminal transmits the reference signal to the network side node on the uplink beam in the at least one beam set may refer to the transmission order indicated in the transmission pattern information described in the foregoing embodiment. Of course, the sending order may be predetermined by the terminal and the network side node, which is not limited in this respect.

Through the steps, the terminal can send the reference signal on the uplink wave beam, and the network side node measures the sent reference signal so as to determine the target wave beam according to the measurement result. Therefore, the determined target beam is suitable for recovering the data transmission of the service, and the data transmission efficiency of the service is improved. For example: as shown in fig. 5, after the network side node sends a trigger signaling (trigger) in the downlink symbol, and the terminal receives the trigger and the transmission pattern information of the reference signal, the network side node sends the reference signal in the subsequent uplink symbol by using a high-frequency beam (which may also be referred to as a narrow beam or a high-frequency narrow beam) according to the transmission pattern information, and determines an optimal beam after detecting the reference signal, and notifies the terminal in the subsequent downlink symbol. And then using the temporary optimal beam to recover the service transmission.

Optionally, the step of transmitting, by the terminal, the reference signal through the beam in the at least one beam set includes: the terminal receives a reference signal sent by the network side node on a downlink beam in the at least one beam set; the terminal measures a reference signal sent by the network side node to obtain a measurement result; the terminal determines the target beam in the downlink beams of the at least one beam set according to the measurement result; and the terminal sends feedback information indicating the target beam to the network side node.

Through the steps, the network side node can transmit the reference signal on the downlink wave beam, and the terminal measures the transmitted reference signal so as to determine the target wave beam according to the measurement result. Therefore, the determined target beam is suitable for recovering the data transmission of the service, and the data transmission efficiency of the service is improved.

Optionally, the step of determining, by the terminal, the target beam in the downlink beams of the at least one beam set according to the measurement result includes: the terminal determines a downlink wave beam with the optimal transmission quality as the target wave beam in the downlink wave beams of the at least one wave beam set according to the measurement result; or if the terminal finds that a downlink beam with the transmission quality higher than a first preset threshold exists in the at least one beam set according to the measurement result, determining the downlink beam with the transmission quality higher than the preset threshold as the target beam.

The downlink wave beam with the optimal transmission quality can be determined to be used as the target wave beam through the steps, so that the data transmission efficiency of the service is improved. In addition, the downlink beam can be determined as the target beam as long as the downlink beam with the transmission quality higher than the first preset threshold is found, so that the target beam can be determined quickly, and excessive reference signal transmission and measurement can be avoided.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

In this embodiment, a beam with a received power, a received quality, or a signal-to-noise ratio higher than a first preset threshold may be selected as a target beam, so that when data transmission of a service is resumed using the target beam, reliability, transmission efficiency, and the like of data transmission are ensured.

It should be noted that, in the second embodiment,step 302 is only optional, that is, in the second embodiment, it is also possible thatstep 302 is not executed, that is, the target beam is a target beam determined by the terminal or the network-side node in the at least one beam set. For example: the target beam is a beam that the network side node and the terminal have agreed in the at least one beam set in advance, or the target beam may be a beam indicated by the network side node in the at least one beam set, and so on.

Step 303, the terminal and the network side node resume data transmission of the service through a target beam in the at least one beam set.

Wherein the target beam is a target beam determined by the terminal by measuring the reference signal, or the target beam is a target beam notified by the terminal by receiving the network side node

The determined target beam may be a beam whose transmission quality satisfies a preset threshold, or the target beam may be a beam with the best transmission quality in the at least one beam set, so as to improve transmission performance and quality of data transmission after recovery.

Optionally, before the step of receiving, by the terminal, a trigger signaling indicating at least one beam set sent by the network-side node, the method further includes: the terminal determines that a communication link of a high-frequency wave beam for service transmission between the terminal and the network side node is abnormal; and the terminal sends a recovery mechanism notification message to the network side node.

Through the steps, when the terminal determines that the communication link of the high-frequency wave beam is abnormal, the recovery mechanism notification message can be sent to the network side node, so that the network side node can be notified to start the wave beam recovery mechanism in time, and the time delay of data transmission is reduced. The determining of the communication link abnormality of the high-frequency beam for traffic transmission with the network-side node may be determined by physical layer measurement.

Optionally, the communication link abnormality includes: the terminal does not receive acknowledgement feedback (ACK) or negative acknowledgement feedback (NACK) sent by the network side node at a preset position; or the terminal measures that the receiving quality of the communication link is lower than a second preset threshold value; or the terminal measures that the receiving power of the communication link is lower than a third preset threshold value; or the terminal measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the change rate of the measurement value of the communication link measured by the terminal reaches a fifth preset threshold value.

The non-reception of the acknowledgement feedback (ACK) or the non-acknowledgement feedback (NACK) transmitted from the network-side node may be understood as a determination that the communication link of the high-frequency beam is broken when the ACK or the NACK is not received at a predetermined position corresponding to the high-frequency beam. The fact that the reception quality of the communication link is lower than the second preset threshold may indicate that the reception quality of the downlink channel PDCCH and the PDSCH is lower than a second preset threshold. And the change rate can be the ratio of the last two measured values, or the change speed of the measured values in a period of time, and the like. In addition, in the embodiment of the present invention, each preset threshold is configurable, or may be agreed in advance, or is notified by the network side.

In this embodiment, when the terminal detects any of the above cases, it is possible to determine that a communication link of a high-frequency beam for traffic transmission with the network-side node is abnormal, and transmit the recovery notification message.

Optionally, the step of sending, by the terminal, a recovery mechanism notification message to the network side node includes: the terminal sends a recovery mechanism notification message to the network side node through a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

In this embodiment, the recovery mechanism notification message may be sent through a wide beam or a low-frequency beam or multiple narrow beams, and the wide beam or the low-frequency beam or the multiple narrow beams may refer to the wide beam or the low-frequency beam or the multiple narrow beams that send the trigger signaling described in the above embodiment, which is not described herein again, and may also achieve the beneficial effect of improving the success rate of the recovery mechanism notification message.

Optionally, after the step of determining that the communication link of the high-frequency beam performing service transmission with the network-side node is abnormal by the terminal, and before the step of sending a recovery mechanism notification message to the network-side node by the terminal, the method further includes: starting a counter with preset counting duration; the step of sending, by the terminal, a recovery mechanism notification message to the network side node includes: and when the counting of the counter reaches the preset counting time, the terminal sends a recovery mechanism notification message to the network side node.

In this embodiment, the preset counting duration may be configured in advance by the terminal, or may be notified by the network side node. In addition, the starting counter may be started when the terminal does not receive acknowledgement feedback (ACK) or negative acknowledgement feedback (NACK) sent from the network side node at a predetermined position; or when the terminal measures that the receiving quality of the communication link is lower than a second preset threshold value; or when the terminal measures that the receiving power of the communication link is lower than a third preset threshold value; or when the terminal measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or when the variation rate of the measurement value of the communication link measured by the terminal reaches a fifth preset threshold value.

Optionally, after the step of determining that a communication link of a high-frequency beam performing service transmission with the network-side node is abnormal, before the step of receiving, by the terminal, a trigger signaling indicating at least one beam set sent by the network-side node, the method further includes: when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal switches to a wide beam, a low-frequency beam or a plurality of narrow beams, and continues to transmit data of the service with the network side node by using the wide beam, the low-frequency beam or the plurality of narrow beams; or when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal suspends the service; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

In this embodiment, when a communication link of a high-frequency beam for performing service transmission between the terminal and the network-side node is abnormal, the terminal may switch to the wide-frequency beam, the low-frequency beam, or the plurality of narrow beams to continue data transmission of the service.

In this embodiment, when a communication link is abnormal, the communication terminal may switch to the beam to continue data transmission of the service, and when the data transmission of the service is continued, the communication terminal may perform a process of determining the target beam, so that the service of the terminal is not interrupted during the process of determining the target beam. And the method can also realize that the service is suspended in the process of determining the target beam and then data transmission is carried out after the target beam is recovered.

The data transmission for continuing the service may be continued by using the communication link as a starting point when the communication link is abnormal, for example: when the terminal and the network side node are disconnected during the transmission of the tth data packet, that is, when the tth data transmission fails, the data transmission of the service can be continued from the tth data packet. Or the data transmission for continuing the service may be performed by using the first n data packets when the communication link is abnormal as a starting point, for example: when the terminal and the network side node are disconnected during the transmission of the T-th data packet, that is, the T-th data transmission fails, the data transmission of the service can be continued from the T-n-th data packet. Since the target beam can be determined while continuing transmission using the beam, after the target beam is determined, the time point of the target beam can be determined to resume data transmission of the service, for example: when the target beam is determined, if the data packet for transmitting the service using the wide beam, the low frequency beam, or the plurality of narrow beams is an mth data packet, the data transmission of the service may be resumed using the switching to the target beam and starting from the mth or M-1 data packet. It should be noted that, in the embodiment of the present invention, when data transmission of a service is resumed, specifically, which data packet is used as a starting point for resuming the service is not limited, and for example: the data packets which are already transmitted by some terminals can be recovered, so that better continuity of the service is ensured.

Optionally, the step of switching, by the terminal, to a wide beam, a low-frequency beam, or multiple narrow beams, and continuing data transmission of the service with the network side node using the wide beam, the low-frequency beam, or multiple narrow beams includes: and the terminal is switched to a wide beam, a low-frequency beam or a plurality of narrow beams, and the wide beam, the low-frequency beam or the plurality of narrow beams and the network side node are used for continuing the data transmission of the service in a preset low-scheduling coding scheme or a preset small data packet mode.

In this embodiment, it may be implemented that, when the switching to the wide beam, the low-frequency beam, or the multiple narrow beams is performed, a preset low Modulation and Coding Scheme (MCS) or a preset small data packet (TB size) mode may be used, so that the success rate of data transmission may be further improved through the MCS and the small data packet.

Optionally, the method further includes: after the terminal and the network side node recover the data transmission of the service through the target beam and during the data transmission, the terminal and the network side node search for a switching beam through a beam training process; and the terminal is switched to the switching wave beam and performs data transmission of the service with the network side node by using the switching wave beam.

Through the steps, the terminal and the network side node can search the switching beam through beam training in the data transmission process of using the target beam to recover the service. The switched beam can be understood as an optimal beam between the terminal and the network side node. For example: and searching a beam pair capable of obtaining the strongest receiving power through scanning of the transmitting beam and the receiving beam, and switching the network side node and the terminal to the strongest beam pair for data transmission when the strongest beam pair is different from the temporary optimal beam.

In this embodiment, when data is transmitted using a target beam, beam training may be performed to determine a better handover beam, so as to improve the transmission quality of data transmission.

In the method for recovering data transmission provided by the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between a terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal transmits a reference signal through a beam in the at least one beam set; the terminal recovers data transmission of the service through a target beam in the at least one beam set; the target beam is determined by the terminal by measuring the reference signal, or the target beam is a target beam which is notified by the terminal to receive the network side node. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved. The target beam is determined by the terminal or the network side node through measuring the reference signal, so that the transmission performance and quality of the recovered data transmission can be improved.

Third embodiment

Referring to fig. 6, fig. 6 is a flowchart of a method for resuming data transmission according to an embodiment of the present invention, and as shown in fig. 6, the method includes the following steps:

step 601, if a communication link of a high-frequency beam for service transmission between a network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal.

For the description about the network side node sending the trigger signaling and the high frequency beam, reference may be made to the description about the first embodiment and the second embodiment, which is not described herein again.

Step 602, the network side node recovers the data transmission of the service through the target beam in the at least one beam set.

Wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

For the relevant description of the target beam and the data transmission of the foregoing recovery service, reference may be made to the relevant description of the first embodiment and the second embodiment, which is not described herein again.

In the method for recovering data transmission provided by the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between a network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal; and the network side node recovers the data transmission of the service through the target beam in the at least one beam set. Therefore, when the communication link is abnormal, the network side node does not need to execute the RRC reconstruction process initiated by the terminal, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Fourth embodiment

Referring to fig. 7, fig. 7 is a flowchart of a method for resuming data transmission according to an embodiment of the present invention, and as shown in fig. 7, the method includes the following steps:

step 701, if a communication link of a high-frequency beam for service transmission between a network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal.

For the description about the network side node sending the trigger signaling and the high frequency beam, reference may be made to the description about the first embodiment and the second embodiment, which is not described herein again.

Optionally, the step of sending, by the network side node, a trigger signaling indicating at least one beam set to the terminal includes: the network side node sends a trigger signaling indicating at least one beam set to the terminal through physical layer downlink control information in a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

For the related description of the wide beam, the low-frequency beam, and the narrow beam, reference may be made to the related description of the second embodiment, which is not described herein again, and the same beneficial effects may also be achieved.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

For the related description of the sending pattern information, reference may be made to the related description of the second embodiment, which is not described herein again, and the same beneficial effects may also be achieved.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or the high-frequency wave beams are taken as the center and are transmitted from far to near according to the space direction; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is alternated according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

It should be noted that, for the various transmission orders of the reference signals described above, reference may be made to the relevant description of the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Step 702, the network side node transmits the reference signal through the beam in the at least one beam set.

Optionally, the step of transmitting, by the network side node, the reference signal through the beam in the at least one beam set includes: the network side node transmits a reference signal to the terminal on a downlink beam in the at least one beam set; and the network side node receives feedback information which is sent by the terminal and indicates the target wave beam, wherein the target wave beam is a downlink wave beam determined by the terminal according to a measurement result of measuring a reference signal transmitted by the network side node.

For the relevant description about the reference signal transmission on the downlink beam, reference may be made to the relevant description about the reference signal reception on the downlink beam by the terminal described in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, the step of the network side node transmitting the reference signal through the beam in the at least one beam set includes: the network side node receives a reference signal sent by the terminal on an uplink beam in the at least one beam set; the network side node measures a reference signal sent by the terminal to obtain a measurement result; the network side node determines the target beam in the uplink beams of the at least one beam set according to the measurement result; and the network side node sends feedback information indicating the target beam to the terminal.

For the embodiments of receiving the reference signal on the uplink beam, measuring the reference signal, and determining the target beam, reference may be made to the embodiment of receiving the reference signal on the downlink beam by the terminal and measuring the reference signal and determining the target beam described in the second embodiment, which is not described herein again and may achieve the same beneficial effects.

Optionally, the step of determining, by the network side node, the target beam in the uplink beams of the at least one beam set according to the measurement result includes: the network side node determines an uplink beam with the optimal transmission quality as the target beam in the uplink beams of the at least one beam set according to the measurement result; or if the network side node finds that there is an uplink beam with transmission quality higher than a first preset threshold in the at least one beam set according to the measurement result, determining the uplink beam with transmission quality higher than the preset threshold as the target beam.

For the implementation of determining the target beam, reference may be made to the implementation of determining the target beam by the terminal in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

For the related description of the transmission quality, reference may be made to the related description in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

It should be noted that, in the fourth embodiment,step 702 is only optional, that is, in the fourth embodiment, it is also possible thatstep 702 is not executed, that is, the target beam is a target beam determined by the terminal or the network-side node in the at least one beam set. For example: the target beam is a beam that the network side node and the terminal have agreed in the at least one beam set in advance, or the target beam may be a beam indicated by the network side node in the at least one beam set, and so on.

Step 703, the network side node and the terminal resume the data transmission of the service through the target beam in the at least one beam set.

Wherein the target beam is a target beam determined by the network-side node measuring the reference signal or a target beam received by the network-side node and notified by the terminal.

Optionally, before the step of sending, by the network side node, the trigger signaling indicating at least one beam set to the terminal, the method further includes: and the network side node determines that the communication link of the high-frequency wave beam for carrying out service transmission with the terminal is abnormal.

For determining the communication link abnormality by the network side node, reference may be made to the implementation of determining the communication link abnormality by the terminal in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, the communication link is abnormal, including: the network side node does not receive positive response feedback or negative response feedback sent by the terminal at a preset position; or the network side node measures that the receiving quality of the communication link is lower than a second preset threshold value; or the network side node measures that the received power of the communication link is lower than a third preset threshold value; or the network side node measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the change rate of the measurement value of the communication link measured by the network side node reaches a fifth preset threshold value.

For the above communication link abnormality, reference may be made to the implementation of the communication link abnormality in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, after the step of determining that the communication link of the high-frequency beam performing service transmission with the terminal is abnormal by the network-side node, before the step of sending, by the network-side node, a trigger signaling indicating at least one beam set to the terminal, the method further includes: starting a counter with preset counting duration; the step of the network side node sending a trigger signaling indicating at least one beam set to the terminal includes: and when the counting of the counter reaches the preset counting time, the network side node sends a trigger signaling indicating at least one beam set to the terminal.

The preset counting duration may be predetermined by the network side node and the terminal, or may be configured by the network side node. In addition, for the implementation of the counter, reference may be made to the related description in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, after the step of determining that a communication link of a high-frequency beam performing service transmission with the terminal is abnormal by the network-side node, and before the step of sending a trigger signaling indicating at least one beam set to the terminal by the network-side node, the method further includes: when a communication link of a high-frequency beam for service transmission between the network side node and the terminal is abnormal, the network side node switches to a wide beam, a low-frequency beam or a plurality of narrow beams, and continues to perform data transmission of the service with the terminal by using the wide beam, the low-frequency beam or the plurality of narrow beams; or when a communication link of a high-frequency beam for service transmission between the network side node and the terminal is abnormal, the network side node suspends the service; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, the step of switching, by the network side node, to a wide beam, a low-frequency beam, or multiple narrow beams, and continuing data transmission of the service with the terminal by using the wide beam, the low-frequency beam, or multiple narrow beams includes: and the network side node is switched to a wide beam, a low-frequency beam or a plurality of narrow beams, and the wide beam, the low-frequency beam or the plurality of narrow beams and the terminal are used for continuing the data transmission of the service in a preset low-scheduling coding scheme or a preset small data packet mode.

For the above implementation of continuing the data transmission of the service, reference may be made to the relevant description in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, before the step of sending, by the network side node, the trigger signaling indicating at least one beam set to the terminal, the method further includes: the network side node receives a recovery mechanism notification message sent by the terminal through a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

For the implementation of the above-mentioned recovery mechanism notification message, reference may be made to the relevant description in the second embodiment, which is not described herein again, and the same beneficial effects may be achieved.

Optionally, the method further includes: after the network side node and the terminal recover the data transmission of the service through the target beam and during the data transmission, the network side node and the terminal search for a switching beam through a beam training process; and the network side node is switched to the switching beam and performs data transmission of the service with the terminal by using the switching beam.

In the method for recovering data transmission provided by the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between a network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal; the network side node transmits a reference signal through a beam in the at least one beam set; the network side node recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the network-side node measuring the reference signal or a target beam received by the network-side node and notified by the terminal. Therefore, when the communication link is abnormal, the RRC reconstruction initiated by the terminal is not required to be executed, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved. The target beam is determined by the terminal or the network side node through measuring the reference signal, so that the transmission performance and quality of the recovered data transmission can be improved.

Fifth embodiment

Referring to fig. 8, fig. 8 is a structural diagram of a terminal according to an embodiment of the present invention, which can implement details of the method for resuming data transmission in the first embodiment to the second embodiment, and achieve the same effects. As shown in fig. 8, the terminal 800 includes: a trigger signaling receivingmodule 801 and a first datatransmission recovery module 802, wherein the trigger signaling receivingmodule 801 is connected with the first datatransmission recovery module 802, and wherein:

a trigger signaling receivingmodule 801, configured to receive a trigger signaling indicating at least one beam set sent by a network side node if a communication link of a high-frequency beam for performing service transmission between the terminal and the network side node is abnormal.

A first datatransmission recovery module 802, configured to recover data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

Optionally, as shown in fig. 9, the terminal 800 further includes:

a first referencesignal transmission module 803 for transmitting a reference signal through a beam within the at least one beam set; the target beam is determined by the terminal by measuring the reference signal, or the target beam is a target beam which is notified by the terminal to receive the network side node.

Optionally, as shown in fig. 10, the first referencesignal transmission module 803 includes:

a first referencesignal transmitting unit 8031, configured to transmit a reference signal to the network-side node on an uplink beam in the at least one beam set.

A first feedbackinformation receiving unit 8032, configured to receive feedback information, which is sent by the network-side node and indicates the target beam, where the target beam is an uplink beam determined by the network-side node according to a measurement result of measuring a reference signal transmitted by the terminal.

Optionally, as shown in fig. 11, the first referencesignal transmission module 803 includes:

a first referencesignal receiving unit 8033, configured to receive a reference signal sent by the network-side node on a downlink beam in the at least one beam set.

Afirst measurement unit 8034, configured to measure a reference signal sent by the network side node, and obtain a measurement result.

A first determiningunit 8035, configured to determine, according to the measurement result, the target beam in the downlink beams of the at least one beam set.

A first feedbackinformation sending unit 8036, configured to send feedback information indicating the target beam to the network side node.

Optionally, the first determiningunit 8035 is configured to determine, according to the measurement result, a downlink beam with the optimal transmission quality in the downlink beams of the at least one beam set as the target beam; or the first determiningunit 8035 is configured to determine, as the target beam, the downlink beam with the transmission quality higher than a preset threshold if the terminal finds, according to the measurement result, that the downlink beam with the transmission quality higher than the first preset threshold exists in the at least one beam set.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam according to a space azimuth alternate transmission order; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is from far to near according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

Optionally, as shown in fig. 12, the terminal 800 further includes:

a firstanomaly determination module 804, configured to determine that a communication link of a high-frequency beam performing service transmission with the network-side node is anomalous.

A notificationmessage sending module 805, configured to send a recovery mechanism notification message to the network side node.

Optionally, the communication link is abnormal, including:

the terminal does not receive positive response feedback or negative response feedback sent by the network side node at a preset position; or the terminal measures that the receiving quality of the communication link is lower than a second preset threshold value; or the terminal measures that the receiving power of the communication link is lower than a third preset threshold value; or the terminal measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the change rate of the measurement value of the communication link measured by the terminal reaches a fifth preset threshold value.

Optionally, the notificationmessage sending module 805 is configured to send a recovery mechanism notification message to the network side node through a wide beam or a low-frequency beam or multiple narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

Optionally, as shown in fig. 13, the terminal 800 further includes:

a firstcounter starting module 806, configured to start a counter with a preset counting duration; the notificationmessage sending module 805 is configured to send a recovery mechanism notification message to the network side node when the counter count reaches the preset count duration.

Optionally, as shown in fig. 14a, the terminal 800 further includes:

a firstdata transmission module 807, configured to, when a communication link of a high-frequency beam for performing service transmission between the terminal and the network-side node is abnormal, switch the terminal to a wide beam, a low-frequency beam, or multiple narrow beams, and continue data transmission of the service with the network-side node using the wide beam, the low-frequency beam, or the multiple narrow beams; or

Optionally, as shown in fig. 14b, the terminal 800 further includes:

a firstservice suspending module 808, configured to suspend a service when a communication link of a high-frequency beam for performing service transmission between the terminal and the network side node is abnormal;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, the firstdata transmission module 807 is configured to switch to a wide beam, a low-frequency beam, or multiple narrow beams, and continue to perform data transmission of the service in a preset low-scheduling coding scheme or a preset small data packet manner with the network side node using the wide beam, the low-frequency beam, or the multiple narrow beams.

Optionally, the trigger signaling receivingmodule 801 is configured to receive, at a wide beam or a low-frequency beam or multiple narrow beams, a trigger signaling indicating at least one beam set, where the trigger signaling is sent by the network side node through physical layer downlink control information; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, as shown in fig. 15, the terminal 800 further includes:

thefirst finding module 809 is configured to find a handover beam through a beam training process with the network side node after the terminal and the network side node resume data transmission of the service through the target beam and during data transmission.

Afirst switching module 8010 is configured to switch to the switching beam, and perform data transmission of the service with the network side node using the switching beam.

In the terminal provided in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between the terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Sixth embodiment

Referring to fig. 16, fig. 16 is a structural diagram of a network side node according to an embodiment of the present invention, which can implement details of the method for resuming data transmission in the third embodiment to the fourth embodiment, and achieve the same effect. As shown in fig. 16, the network-side node 1600 includes: a trigger signalingsending module 1601 and a second datatransmission recovery module 1602, where the trigger signalingsending module 1601 is connected to the second datatransmission recovery module 1602, where:

a trigger signalingsending module 1601, configured to send a trigger signaling indicating at least one beam set to the terminal if a communication link of a high-frequency beam for performing service transmission between the network side node and the terminal is abnormal.

A second datatransmission recovery module 1602, configured to recover data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

Optionally, as shown in fig. 17, the network-side node 1600 further includes:

a second referencesignal transmission module 1603, configured to transmit a reference signal with the terminal through a beam in the at least one beam set; wherein the target beam is a target beam determined by the network-side node measuring the reference signal or a target beam received by the network-side node and notified by the terminal.

Optionally, as shown in fig. 18, the second referencesignal transmission module 1603 includes:

a second referencesignal transmitting unit 16031, configured to transmit a reference signal to the terminal on a downlink beam in the at least one beam set.

A second feedbackinformation receiving unit 16032, configured to receive feedback information, which is sent by the terminal and indicates the target beam, where the target beam is a downlink beam determined by the terminal according to a measurement result obtained by measuring a reference signal transmitted by the network side node.

Optionally, as shown in fig. 19, the second referencesignal transmission module 1603 includes:

a second referencesignal receiving unit 16033, configured to receive a reference signal sent by the terminal on an uplink beam in the at least one beam set.

Asecond measuring unit 16034, configured to measure the reference signal sent by the terminal, and obtain a measurement result.

A second determiningunit 16035, configured to determine the target beam in the uplink beams of the at least one beam set according to the measurement result.

A second feedbackinformation sending unit 16036, configured to send feedback information indicating the target beam to the terminal.

Optionally, the second determiningunit 16035 is configured to determine, according to the measurement result, an uplink beam with an optimal transmission quality from the uplink beams of the at least one beam set as the target beam; or

The second determiningunit 16035 is configured to determine, if the network side node finds, according to the measurement result, that there is an uplink beam with transmission quality higher than a first preset threshold in the at least one beam set, the uplink beam with transmission quality higher than a preset threshold is the target beam.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam according to a space azimuth alternate transmission order; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is from far to near according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

Optionally, as shown in fig. 20, the network-side node 1600 further includes:

a secondanomaly determination module 1604, configured to determine, by the network-side node, that a communication link of a high-frequency beam performing service transmission with the terminal is anomalous.

Optionally, the communication link is abnormal, including: the network side node does not receive positive response feedback or negative response feedback sent by the terminal at a preset position; or the network side node measures that the receiving quality of the communication link is lower than a second preset threshold value; or the network side node measures that the received power of the communication link is lower than a third preset threshold value; or the network side node measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the change rate of the measurement value of the communication link measured by the network side node reaches a fifth preset threshold value.

Optionally, as shown in fig. 21, the network-side node 1600 further includes:

a secondcounter starting module 1605, configured to start a counter with a preset counting duration;

the trigger signalingsending module 1601 is configured to send a trigger signaling indicating at least one beam set to the terminal when the counter reaches the preset counting duration.

Optionally, as shown in fig. 22a, the network-side node 1600 further includes:

a seconddata transmission module 1606, configured to, when a communication link of a high-frequency beam for performing service transmission between the network-side node and the terminal is abnormal, switch the network-side node to a wide beam, a low-frequency beam, or multiple narrow beams, and continue to perform data transmission of the service with the terminal using the wide beam, the low-frequency beam, or the multiple narrow beams; or

Optionally, as shown in fig. 22b, the network-side node 1600 further includes:

a secondservice suspending module 1607, configured to suspend, by the network side node, a service when a communication link of a high-frequency beam for performing service transmission between the network side node and the terminal is abnormal;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, the second data transmission module is configured to switch to a wide beam, a low-frequency beam, or multiple narrow beams, and continue to transmit the data of the service in a preset low-scheduling coding scheme or a preset small data packet manner with the terminal using the wide beam, the low-frequency beam, or the multiple narrow beams.

Optionally, as shown in fig. 23, the network-side node 1600 further includes:

a notificationmessage receiving module 1608, configured to receive, by the network-side node, a recovery mechanism notification message sent by the terminal through a wide beam or a low-frequency beam or multiple narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

Optionally, the trigger signalingsending module 1601 is configured to send a trigger signaling indicating at least one beam set to the terminal through physical layer downlink control information in a wide beam or a low-frequency beam or multiple narrow beams; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, as shown in fig. 24, the network-side node 1600 further includes:

asecond searching module 1609, configured to search for a handover beam through a beam training process with the terminal after the network side node and the terminal resume data transmission of the service through the target beam and during data transmission;

asecond switching module 16010, configured to switch the network side node to the switching beam, and perform data transmission of the service with the terminal using the switching beam.

In the network side node provided in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between the network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal; and the network side node and the terminal recover the data transmission of the service through the target beam in the at least one beam set. Therefore, when the communication link is abnormal, the network side node does not need to execute the RRC reconstruction process initiated by the terminal, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Seventh embodiment

Referring to fig. 25, fig. 25 is a structural diagram of a terminal applied in the embodiment of the present invention, which can implement details of the methods for resuming data transmission in the first embodiment to the second embodiment, and achieve the same effects. As shown in fig. 25, the terminal 2500 includes: at least oneprocessor 2501,memory 2502, at least onenetwork interface 2504, and auser interface 2503. The various components in terminal 2500 are coupled together by abus system 2505. It is understood that thebus system 2505 is used to enable connection communications between these components. Thebus system 2505 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for the sake of clarity the various busses are labeled in figure 25 as thebus system 2505.

Theuser interface 2503 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, track ball, touch pad, or touch screen, etc.).

It is to be appreciated that thememory 2502 in embodiments of the present invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). Thememory 2502 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments,memory 2502 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: anoperating system 25021 andapplication programs 25022.

Theoperating system 25021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. Theapplication programs 25022 include various application programs such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. Programs that implement methods in accordance with embodiments of the invention can be included inapplication programs 25022.

In an embodiment of the present invention, theprocessor 2501 is configured to, by calling a program or an instruction stored in thememory 2502, specifically, a program or an instruction stored in the application program 25022: if a communication link of a high-frequency wave beam for service transmission between a terminal and a network side node is abnormal, receiving a trigger signaling which indicates at least one wave beam set and is sent by the network side node; resuming data transmission of the traffic through a target beam of the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

The method disclosed in the above embodiments of the invention may be implemented in theprocessor 2501 or implemented by theprocessor 2501. Theprocessor 2501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in theprocessor 2501. TheProcessor 2501 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in thememory 2502, and theprocessor 2501 reads information in thememory 2502 and completes the steps of the method in combination with hardware thereof.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, theprocessor 2501 is further configured to: transmitting a reference signal through a beam within the at least one beam set; the target beam is determined by the terminal by measuring the reference signal, or the target beam is a target beam which is notified by the terminal to receive the network side node.

Optionally, theprocessor 2501 is further configured to: transmitting a reference signal to the network side node on an uplink beam in the at least one beam set; and receiving feedback information which is sent by the network side node and indicates the target wave beam, wherein the target wave beam is an uplink wave beam determined by the network side node according to a measurement result of measuring a reference signal transmitted by the terminal.

Optionally, theprocessor 2501 is further configured to: receiving a reference signal transmitted by the network side node on a downlink beam in the at least one beam set; measuring a reference signal sent by the network side node to obtain a measurement result; determining the target beam in downlink beams of the at least one beam set according to the measurement result; and sending feedback information indicating the target beam to the network side node.

Optionally, theprocessor 2501 is further configured to: determining a downlink beam with the optimal transmission quality as the target beam in the downlink beams of the at least one beam set according to the measurement result; or if the terminal finds that a downlink beam with the transmission quality higher than a first preset threshold exists in the at least one beam set according to the measurement result, determining the downlink beam with the transmission quality higher than the preset threshold as the target beam.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam according to a space azimuth alternate transmission order; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is from far to near according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

Optionally, theprocessor 2501 is further configured to: determining that a communication link of a high-frequency wave beam for service transmission between the network side node and the network side node is abnormal; and sending a recovery mechanism notification message to the network side node.

Optionally, theprocessor 2501 is further configured to: receiving no positive acknowledgement feedback or negative acknowledgement feedback sent by the network side node at a preset position; or measuring that the receiving quality of the communication link is lower than a second preset threshold value; or the terminal measures that the receiving power of the communication link is lower than a third preset threshold value; or the terminal measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the measured change rate of the measurement value of the communication link reaches a fifth preset threshold value.

Optionally, theprocessor 2501 is further configured to: sending a recovery mechanism notification message to the network side node through a wide beam or a low frequency beam or a plurality of narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

Optionally, theprocessor 2501 is further configured to: starting a counter with preset counting duration; and when the counting of the counter reaches the preset counting time, sending a recovery mechanism notification message to the network side node.

Optionally, theprocessor 2501 is further configured to: when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, switching to a wide beam, a low-frequency beam or a plurality of narrow beams, and continuing to transmit data of the service with the network side node by using the wide beam, the low-frequency beam or the plurality of narrow beams; or when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, suspending the service;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2501 is further configured to: when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, switching to a wide beam, a low-frequency beam or a plurality of narrow beams, and continuing to transmit data of the service by using the wide beam, the low-frequency beam or the plurality of narrow beams and the network side node in a preset low-scheduling coding scheme or a preset small data packet mode.

Optionally, theprocessor 2501 is further configured to: receiving a trigger signaling which indicates at least one beam set and is sent by the network side node through physical layer downlink control information at a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2501 is further configured to: after the terminal and the network side node recover the data transmission of the service through the target beam and during the data transmission, the terminal and the network side node search for a switching beam through a beam training process; and switching to the switching beam, and performing data transmission of the service with the network side node by using the switching beam.

In the terminal provided in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between the terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Eighth embodiment

Referring to fig. 26, fig. 26 is a structural diagram of a terminal applied in the embodiment of the present invention, which can implement details of the method for resuming data transmission in the first embodiment to the second embodiment, and achieve the same effect. As shown in fig. 26, the terminal 2600 includes a Radio Frequency (RF)circuit 2610, amemory 2620, aninput unit 2630, adisplay unit 2640, aprocessor 2650, anaudio circuit 2660, acommunication module 2670, and apower supply 2680.

Theinput unit 2630 may be used for receiving numeric or character information input by a user and generating signal inputs related to user setting and function control of themobile terminal 2600, among others. Specifically, in the embodiment of the present invention, theinput unit 2630 may include atouch panel 2631. Thetouch panel 2631, also referred to as a touch screen, can collect touch operations of a user (e.g., operations of the user on thetouch panel 2631 by using a finger, a stylus, or any other suitable object or accessory) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, thetouch panel 2631 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to theprocessor 2650, and receives and executes commands sent from theprocessor 2650. In addition, thetouch panel 2631 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to thetouch panel 2631, theinput unit 2630 may includeother input devices 2632, and theother input devices 2632 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

Among other things, thedisplay unit 2640 may be used to display information input by a user or information provided to the user and various menu interfaces of themobile terminal 2600. Thedisplay unit 2640 may include adisplay panel 2641, and optionally, thedisplay panel 2641 may be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).

It should be noted that thetouch panel 2631 may cover thedisplay panel 2641 to form a touch display screen, and when the touch display screen detects a touch operation thereon or nearby, the touch display screen is transmitted to theprocessor 2650 to determine the type of the touch event, and then theprocessor 2650 provides a corresponding visual output on the touch display screen according to the type of the touch event.

The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.

Theprocessor 2650 is a control center of themobile terminal 2600, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of themobile terminal 2600 and processes data by running or executing software programs and/or modules stored in thefirst memory 2621 and calling data stored in thesecond memory 2622, thereby integrally monitoring themobile terminal 2600. Alternatively, theprocessor 2650 may include one or more processing units.

In an embodiment of the present invention, theprocessor 2650 is configured to, by calling a software program and/or a module stored in thefirst memory 2621 and/or data stored in the second memory 2622: if a communication link of a high-frequency wave beam for service transmission between a terminal and a network side node is abnormal, receiving a trigger signaling which indicates at least one wave beam set and is sent by the network side node; resuming data transmission of the traffic through a target beam of the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set.

Optionally, theprocessor 2650 is further configured to: transmitting a reference signal through a beam within the at least one beam set; the target beam is determined by the terminal by measuring the reference signal, or the target beam is a target beam which is notified by the terminal to receive the network side node.

Optionally, theprocessor 2650 is further configured to: transmitting a reference signal to the network side node on an uplink beam in the at least one beam set; and receiving feedback information which is sent by the network side node and indicates the target wave beam, wherein the target wave beam is an uplink wave beam determined by the network side node according to a measurement result of measuring a reference signal transmitted by the terminal.

Optionally, theprocessor 2650 is further configured to: receiving a reference signal transmitted by the network side node on a downlink beam in the at least one beam set; measuring a reference signal sent by the network side node to obtain a measurement result; determining the target beam in downlink beams of the at least one beam set according to the measurement result; and sending feedback information indicating the target beam to the network side node.

Optionally, theprocessor 2650 is further configured to: determining a downlink beam with the optimal transmission quality as the target beam in the downlink beams of the at least one beam set according to the measurement result; or if the terminal finds that a downlink beam with the transmission quality higher than a first preset threshold exists in the at least one beam set according to the measurement result, determining the downlink beam with the transmission quality higher than the preset threshold as the target beam.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam according to a space azimuth alternate transmission order; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is from far to near according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

Optionally, theprocessor 2650 is further configured to: determining that a communication link of a high-frequency wave beam for service transmission between the network side node and the network side node is abnormal; and sending a recovery mechanism notification message to the network side node.

Optionally, theprocessor 2650 is further configured to: receiving no positive acknowledgement feedback or negative acknowledgement feedback sent by the network side node at a preset position; or measuring that the receiving quality of the communication link is lower than a second preset threshold value; or the terminal measures that the receiving power of the communication link is lower than a third preset threshold value; or the terminal measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the measured change rate of the measurement value of the communication link reaches a fifth preset threshold value.

Optionally, theprocessor 2650 is further configured to: sending a recovery mechanism notification message to the network side node through a wide beam or a low frequency beam or a plurality of narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

Optionally, theprocessor 2650 is further configured to: starting a counter with preset counting duration; and when the counting of the counter reaches the preset counting time, sending a recovery mechanism notification message to the network side node.

Optionally, theprocessor 2650 is further configured to: when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, switching to a wide beam, a low-frequency beam or a plurality of narrow beams, and continuing to transmit data of the service with the network side node by using the wide beam, the low-frequency beam or the plurality of narrow beams; or when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, suspending the service;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2650 is further configured to: when a communication link of a high-frequency beam for service transmission between the terminal and the network side node is abnormal, switching to a wide beam, a low-frequency beam or a plurality of narrow beams, and continuing to transmit data of the service by using the wide beam, the low-frequency beam or the plurality of narrow beams and the network side node in a preset low-scheduling coding scheme or a preset small data packet mode.

Optionally, theprocessor 2650 is further configured to: receiving a trigger signaling which indicates at least one beam set and is sent by the network side node through physical layer downlink control information at a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal; the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal; the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2650 is further configured to: after the terminal and the network side node recover the data transmission of the service through the target beam and during the data transmission, the terminal and the network side node search for a switching beam through a beam training process; and switching to the switching beam, and performing data transmission of the service with the network side node by using the switching beam.

In the terminal provided in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between the terminal and a network side node is abnormal, the terminal receives a trigger signaling indicating at least one beam set sent by the network side node; the terminal recovers data transmission of the service through a target beam in the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set. Therefore, when the communication link is abnormal, the RRC reconstruction is not required to be initiated, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Ninth embodiment

Referring to fig. 27, fig. 27 is a structural diagram of a network side node applied in the embodiment of the present invention, which can implement details of the method for resuming data transmission in the third embodiment to the fourth embodiment, and achieve the same effect. As shown in fig. 27, the network-side node 2700 includes: aprocessor 2701, atransceiver 2702, amemory 2703, auser interface 2704 and a bus interface, wherein:

theprocessor 2701 is used for reading the program in thememory 2703 and executing the following processes:

if a communication link of a high-frequency beam for service transmission between a network side node and a terminal is abnormal, a trigger signaling indicating at least one beam set is sent to the terminal through atransceiver 2702; resuming data transmission of the traffic through a target beam of the at least one beam set; wherein the target beam is a target beam determined by the terminal or the network side node in the at least one beam set

Among other things, thetransceiver 2702 is configured to receive and transmit data under the control of theprocessor 2701.

In FIG. 27, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented byprocessor 2701, and various circuits of memory, represented bymemory 2703, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. Thetransceiver 2702 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. Theuser interface 2704 may also be an interface to enable external connection of a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

Theprocessor 2701 is responsible for managing the bus architecture and general processing, and thememory 2703 may store data used by theprocessor 2701 in performing operations.

Optionally, theprocessor 2701 is further configured to: transmitting a reference signal through a beam within the at least one beam set; wherein the target beam is a target beam determined by the network-side node measuring the reference signal or a target beam received by the network-side node and notified by the terminal.

Optionally, theprocessor 2701 is further configured to: transmitting a reference signal to the terminal on a downlink beam in the at least one beam set; and receiving feedback information which is sent by the terminal and indicates the target wave beam, wherein the target wave beam is a downlink wave beam determined by the terminal according to a measurement result of measuring a reference signal transmitted by the network side node.

Optionally, theprocessor 2701 is further configured to: receiving a reference signal sent by the terminal on an uplink beam in the at least one beam set; measuring a reference signal sent by the terminal to obtain a measurement result; determining the target beam in uplink beams of the at least one beam set according to the measurement result; and sending feedback information indicating the target beam to the terminal.

Optionally, theprocessor 2701 is further configured to: determining an uplink beam with the optimal transmission quality as the target beam in the uplink beams of the at least one beam set according to the measurement result; or if the network side node finds that there is an uplink beam with transmission quality higher than a first preset threshold in the at least one beam set according to the measurement result, determining the uplink beam with transmission quality higher than the preset threshold as the target beam.

Optionally, the transmission quality includes at least one of a received power, a received quality, and a signal-to-noise ratio.

Optionally, the trigger signaling includes transmission pattern information of a reference signal, or the trigger signaling is used to indicate the transmission pattern information of the reference signal agreed in advance by the terminal and the network side node; wherein the transmission pattern information is used for indicating the at least one beam set and indicating an order of transmitting reference signals in the at least one beam set between the terminal and the network side node.

Optionally, the order of sending the reference signals includes: an order in which high frequency beams within the at least one beam set are preferentially transmitted.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam, which is maintained by the terminal in advance, the order of sending the reference signal includes: in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam from near to far according to a space direction; or in the primary beam set, taking the high-frequency beam as a center and sending the high-frequency beam according to a space azimuth alternate transmission order; or in the primary beam set, the high-frequency beams are used as the center and the transmission sequence is from far to near according to the space direction.

Optionally, if the at least one beam set includes a primary beam set including the high-frequency beam and at least one target beam set, which are maintained by the terminal in advance, the order of sending the reference signal includes: a beam-mixing transmission order within the primary beam set and the at least one target beam set; or if only one target beam set is included, preferentially sending the order of the beams in the target beam set; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets in an alternating set transmission order; or if a plurality of target beam sets are included, preferentially transmitting beams in the plurality of target beam sets, and transmitting the plurality of target beam sets according to the order of set sequence.

Optionally, theprocessor 2701 is further configured to: and determining that the communication link of the high-frequency wave beam for carrying out service transmission with the terminal is abnormal.

Optionally, the communication link is abnormal, including: the network side node does not receive positive response feedback or negative response feedback sent by the terminal at a preset position; or the network side node measures that the receiving quality of the communication link is lower than a second preset threshold value; or the network side node measures that the received power of the communication link is lower than a third preset threshold value; or the network side node measures that the receiving signal-to-noise ratio of the communication link is lower than a fourth preset threshold value; or the change rate of the measurement value of the communication link measured by the network side node reaches a fifth preset threshold value.

Optionally, theprocessor 2701 is further configured to: starting a counter with preset counting duration; and when the counting of the counter reaches the preset counting time, sending a trigger signaling indicating at least one beam set to the terminal.

Optionally, theprocessor 2701 is further configured to: when a communication link of a high-frequency beam for service transmission between the network side node and the terminal is abnormal, the network side node switches to a wide beam, a low-frequency beam or a plurality of narrow beams, and continues to perform data transmission of the service with the terminal by using the wide beam, the low-frequency beam or the plurality of narrow beams; or when a communication link of a high-frequency beam for service transmission between the network side node and the terminal is abnormal, suspending the service;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2701 is further configured to: when a communication link of a high-frequency beam for service transmission between the network side node and the terminal is abnormal, switching to a wide beam, a low-frequency beam or a plurality of narrow beams, and continuing to transmit data of the service by using the wide beam, the low-frequency beam or the plurality of narrow beams and the terminal in a preset low-scheduling coding scheme or a preset small data packet mode.

Optionally, theprocessor 2701 is further configured to: receiving a recovery mechanism notification message sent by the terminal through a wide beam or a low-frequency beam or a plurality of narrow beams; the wide beam is a beam with a lobe wider than that of the high-frequency beam, the low-frequency beam is a beam with a frequency lower than that of the high-frequency beam, and the narrow beam is a beam with a lobe difference value between the lobe and the lobe of the high-frequency beam within a preset range.

Optionally, theprocessor 2701 is further configured to: sending a trigger signaling indicating at least one beam set to the terminal through physical layer downlink control information in a wide beam or a low-frequency beam or a plurality of narrow beams;

the wide beam is a beam which is negotiated by the terminal and the network side node in advance or is notified by the network side node, is wider than the lobe of the high-frequency beam and covers the terminal;

the low-frequency beam is a beam which is negotiated in advance between the terminal and the network side node or is notified by the network side node, has a frequency lower than that of the high-frequency beam, and covers the terminal;

the narrow beam is pre-negotiated between the terminal and the network side node or notified by the network side node, and the difference value of the lobe and the lobe of the high-frequency beam is within a preset range and covers the beam of the terminal.

Optionally, theprocessor 2701 is further configured to: after the network side node and the terminal recover the data transmission of the service through the target beam and during the data transmission, the network side node and the terminal search for a switching beam through a beam training process; and the network side node is switched to the switching beam and performs data transmission of the service with the terminal by using the switching beam.

In the network side node provided in the embodiment of the present invention, if a communication link of a high frequency beam for performing service transmission between the network side node and a terminal is abnormal, the network side node sends a trigger signaling indicating at least one beam set to the terminal; and the network side node recovers the data transmission of the service through the target beam in the at least one beam set. Therefore, when the communication link is abnormal, the network side node does not need to execute the RRC reconstruction process initiated by the terminal, and the target beam can be directly used for recovering the data transmission of the service, so that the time delay from the abnormal communication link to the recovery of the data transmission is reduced, and the user experience is improved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (68)

Translated fromChinese

1.一种恢复数据传输的方法，其特征在于，包括：1. a method of restoring data transmission, is characterized in that, comprises:终端确定与网络侧节点之间进行业务传输的高频波束的通信链路异常；The terminal determines that the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal;启动预设计数时长的计数器；Start a counter with a preset count duration;在所述计数器计数到达所述预设计数时长时，所述终端向所述网络侧节点发送恢复机制通知消息；When the count of the counter reaches the preset count duration, the terminal sends a recovery mechanism notification message to the network side node;所述终端接收所述网络侧节点发送的指示至少一个波束集合的触发信令；receiving, by the terminal, trigger signaling indicating at least one beam set sent by the network side node;所述终端通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输；recovering, by the terminal, the data transmission of the service through the target beam in the at least one beam set;其中，所述目标波束为所述终端或者所述网络侧节点在所述至少一个波束集合中确定的目标波束，且所述目标波束是一个或者多个高频波束。The target beam is a target beam determined by the terminal or the network side node in the at least one beam set, and the target beam is one or more high-frequency beams.2.根据权利要求1所述的方法，其特征在于，所述终端接收所述网络侧节点发送的指示至少一个波束集合的触发信令的步骤之后，所述终端通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输的步骤之前，所述方法还包括：2 . The method according to claim 1 , wherein after the terminal receives the trigger signaling indicating at least one beam set sent by the network side node, the terminal passes through the at least one beam set. 3 . Before the step of restoring the data transmission of the service by the target beam, the method further includes:所述终端通过所述至少一个波束集合内的波束传输参考信号；transmitting, by the terminal, a reference signal through a beam in the at least one beam set;其中，所述目标波束为所述终端对所述参考信号进行测量而确定的目标波束，或者所述目标波束为所述终端接收所述网络侧节点通知的目标波束。Wherein, the target beam is a target beam determined by the terminal measuring the reference signal, or the target beam is a target beam notified by the terminal receiving the network side node.3.根据权利要求2所述的方法，其特征在于，所述终端通过所述至少一个波束集合内的波束传输参考信号的步骤，包括：3. The method according to claim 2, wherein the step of transmitting the reference signal by the terminal through the beams in the at least one beam set comprises:所述终端在所述至少一个波束集合内的上行波束上向所述网络侧节点发送参考信号；sending, by the terminal, a reference signal to the network side node on an uplink beam in the at least one beam set;所述终端接收所述网络侧节点发送的指示所述目标波束的反馈信息，其中，所述目标波束为所述网络侧节点根据对所述终端发射的参考信号进行测量的测量结果确定的上行波束。The terminal receives the feedback information indicating the target beam sent by the network side node, where the target beam is an uplink beam determined by the network side node according to a measurement result of measuring the reference signal transmitted by the terminal .4.根据权利要求2所述的方法，其特征在于，所述终端通过所述至少一个波束集合内的波束传输参考信号的步骤，包括：4. The method according to claim 2, wherein the step of transmitting the reference signal by the terminal through the beams in the at least one beam set comprises:所述终端接收所述网络侧节点在所述至少一个波束集合内的下行波束上发送的参考信号；receiving, by the terminal, a reference signal sent by the network-side node on a downlink beam in the at least one beam set;所述终端对所述网络侧节点发送的参考信号进行测量，获取测量结果；The terminal measures the reference signal sent by the network side node, and obtains a measurement result;所述终端根据所述测量结果，在所述至少一个波束集合的下行波束中确定所述目标波束；The terminal determines the target beam in the downlink beam of the at least one beam set according to the measurement result;所述终端向所述网络侧节点发送指示所述目标波束的反馈信息。The terminal sends feedback information indicating the target beam to the network side node.5.根据权利要求4所述的方法，其特征在于，所述终端根据所述测量结果在所述至少一个波束集合的下行波束中确定所述目标波束的步骤，包括：5. The method according to claim 4, wherein the step of determining, by the terminal, the target beam in the downlink beam of the at least one beam set according to the measurement result, comprises:所述终端根据所述测量结果，在所述至少一个波束集合的下行波束中确定传输质量最优的下行波束作为所述目标波束；或者The terminal determines, from the downlink beams of the at least one beam set, the downlink beam with the best transmission quality as the target beam according to the measurement result; or若所述终端根据所述测量结果查找到在所述至少一个波束集合内存在传输质量高于第一预设门限的下行波束时，将所述传输质量高于预设门限的下行波束确定为所述目标波束。If the terminal finds, according to the measurement result, that there is a downlink beam whose transmission quality is higher than the first preset threshold in the at least one beam set, the terminal determines that the downlink beam whose transmission quality is higher than the preset threshold is the selected downlink beam. the target beam.6.根据权利要求5所述的方法，其特征在于，所述传输质量包括接收功率、接收质量和信噪比中的至少一项。6. The method according to claim 5, wherein the transmission quality comprises at least one of received power, received quality and signal-to-noise ratio.7.根据权利要求2所述的方法，其特征在于，所述触发信令包括参考信号的发送图样信息，或者上述触发信令用于指示所述终端与所述网络侧节点预先约定的参考信号的发送图样信息；7 . The method according to claim 2 , wherein the trigger signaling includes transmission pattern information of reference signals, or the trigger signaling is used to indicate a reference signal pre-agreed between the terminal and the network side node. 8 . send pattern information;其中，所述发送图样信息用于指示所述至少一个波束集合，以及指示所述终端与所述网络侧节点之间在所述至少一个波束集合内发送参考信号的次序。The sending pattern information is used to indicate the at least one beam set, and to indicate the order in which reference signals are sent between the terminal and the network side node in the at least one beam set.8.根据权利要求7所述的方法，其特征在于，所述发送参考信号的次序，包括：8. The method according to claim 7, wherein the order of sending reference signals comprises:优先发送所述至少一个波束集合内的高频波束的次序。The order in which the high frequency beams within the at least one beam set are transmitted is prioritized.9.根据权利要求7所述的方法，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，则所述发送参考信号的次序，包括：9 . The method according to claim 7 , wherein the at least one beam set includes an original beam set including the high-frequency beam maintained in advance by the terminal, and the order of sending reference signals is: 10 . include:在所述原波束集合内，以所述高频波束为中心按照空间方位由近到远的发送次序；或者In the original beam set, the high-frequency beam as the center is sent in order from near to far in spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位远近交替的发送次序；或者In the original beam set, with the high-frequency beam as the center, the transmission order is alternately far and near according to the spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位由远到近的发送次序。In the original beam set, the high-frequency beam is taken as the center, and the transmission order is from far to near according to the spatial azimuth.10.根据权利要求7所述的方法，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，以及至少一个目标波束集合，则所述发送参考信号的次序，包括：10. The method according to claim 7, wherein the at least one beam set includes an original beam set including the high-frequency beam maintained by the terminal in advance, and at least one target beam set, then the Describe the order of sending reference signals, including:在所述原波束集合和所述至少一个目标波束集合内的波束混合发送次序；或者beam mixing transmission order within the original beam set and the at least one target beam set; or若只包括一个目标波束集合，则优先发送所述目标波束集合内的波束的次序；或者If only one target beam set is included, the order of the beams in the target beam set is preferentially transmitted; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合交替发送的次序；或者If multiple target beam sets are included, the beams in the multiple target beam sets are sent preferentially, and the multiple target beam sets are sent alternately in the order of sets; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合顺序发送的次序。If multiple target beam sets are included, the beams within the multiple target beam sets are preferentially sent, and the multiple target beam sets are sent in the order of the sets.11.根据权利要求1所述的方法，其特征在于，所述通信链路异常，包括：11. The method according to claim 1, wherein the abnormality of the communication link comprises:所述终端在预定的位置没有收到来自所述网络侧节点发送的肯定应答反馈或者否定应答反馈；或者The terminal does not receive the positive response feedback or the negative response feedback sent from the network side node at the predetermined position; or所述终端测量到所述通信链路的接收质量低于第二预设门限值；或者The terminal measures that the reception quality of the communication link is lower than a second preset threshold; or所述终端测量到所述通信链路接收功率低于第三预设门限值；或者The terminal measures that the received power of the communication link is lower than a third preset threshold; or所述终端测量到所述通信链路接收信噪比低于第四预设门限值；或者The terminal measures that the received signal-to-noise ratio of the communication link is lower than a fourth preset threshold; or所述终端测量的所述通信链路的测量值的变化率达到第五预设门限值。The rate of change of the measurement value of the communication link measured by the terminal reaches a fifth preset threshold value.12.根据权利要求1所述的方法，其特征在于，所述终端向所述网络侧节点发送恢复机制通知消息的步骤，包括：12. The method according to claim 1, wherein the step of the terminal sending a recovery mechanism notification message to the network side node comprises:所述终端通过宽波束或低频波束或多个窄波束向所述网络侧节点发送恢复机制通知消息；sending, by the terminal, a recovery mechanism notification message to the network side node through a wide beam or a low frequency beam or multiple narrow beams;其中，所述宽波束为波瓣比所述高频波束的波瓣要宽的波束，所述低频波束为频率比所述高频波束的频率要低的波束，所述窄波束为波瓣与所述高频波束的波瓣的差值在预设范围内的波束。Wherein, the wide beam is a beam whose lobe is wider than that of the high-frequency beam, the low-frequency beam is a beam whose frequency is lower than that of the high-frequency beam, and the narrow beam is a lobe with a The difference between the lobes of the high-frequency beam is within a preset range.13.根据权利要求1所述的方法，其特征在于，所述终端确定与所述网络侧节点之间进行业务传输的高频波束的通信链路异常的步骤之后，所述终端接收所述网络侧节点发送的指示至少一个波束集合的触发信令的步骤之前，所述方法还包括：13 . The method according to claim 1 , wherein after the terminal determines that the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal receives the network node. 14 . Before the step of sending the trigger signaling indicating at least one beam set by the side node, the method further includes:在所述终端与所述网络侧节点之间进行业务传输的高频波束的通信链路异常时，所述终端切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述网络侧节点继续进行所述业务的数据传输；或者When the communication link of the high frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal switches to a wide beam, a low frequency beam or multiple narrow beams, and uses the wide beam, low frequency beam The beam or multiple narrow beams and the network side node continue to perform data transmission of the service; or在所述终端与所述网络侧节点之间进行业务传输的高频波束的通信链路异常时，所述终端将所述业务挂起；When the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal, the terminal suspends the service;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.14.根据权利要求13所述的方法，其特征在于，所述终端切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述网络侧节点继续进行所述业务的数据传输的步骤，包括：The method according to claim 13, wherein the terminal switches to a wide beam, a low frequency beam or multiple narrow beams, and uses the wide beam, low frequency beam or multiple narrow beams to communicate with the network side The node continues to perform the step of data transmission of the service, including:所述终端切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述网络侧节点以预设低调度编码方案或者预设小数据包方式继续进行所述业务的数据传输。The terminal switches to a wide beam, a low frequency beam or multiple narrow beams, and uses the wide beam, low frequency beam or multiple narrow beams to communicate with the network side node in a preset low scheduling coding scheme or a preset small data packet mode The data transmission of the service is continued.15.根据权利要求1至10中任一项所述的方法，其特征在于，所述终端接收所述网络侧节点发送的指示至少一个波束集合的触发信令的步骤，包括：The method according to any one of claims 1 to 10, wherein the step of receiving, by the terminal, the trigger signaling indicating at least one beam set sent by the network side node, comprises:所述终端在宽波束或低频波束或多个窄波束接收所述网络侧节点通过物理层下行控制信息发送的指示至少一个波束集合的触发信令；receiving, by the terminal in a wide beam or a low frequency beam or multiple narrow beams, a trigger signaling indicating at least one beam set sent by the network side node through the physical layer downlink control information;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.16.根据权利要求1至10中任一项所述的方法，其特征在于，所述方法还包括：16. The method according to any one of claims 1 to 10, wherein the method further comprises:在所述终端与所述网络侧节点通过所述目标波束恢复所述业务的数据传输后并在数据传输时，所述终端与所述网络侧节点通过波束训练过程，寻找切换波束；After the terminal and the network-side node resume data transmission of the service through the target beam and during data transmission, the terminal and the network-side node search for a switching beam through a beam training process;所述终端切换至所述切换波束，并使用所述切换波束与所述网络侧节点进行所述业务的数据传输。The terminal switches to the switching beam, and uses the switching beam to perform data transmission of the service with the network side node.17.一种恢复数据传输的方法，其特征在于，包括：17. A method for recovering data transmission, comprising:网络侧节点接收终端发送的恢复机制通知消息，其中，所述恢复机制通知消息为所述终端确定与所述网络侧节点之间进行业务传输的高频波束的通信链路异常后，启动预设计数时长的计数器，并在所述计数器计数到达所述预设计数时长时发送的；The network side node receives the recovery mechanism notification message sent by the terminal, wherein the recovery mechanism notification message is for the terminal to start the pre-design after determining that the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal A counter for counting the duration, and sent when the count of the counter reaches the preset count duration;所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令；sending, by the network-side node, trigger signaling indicating at least one beam set to the terminal;所述网络侧节点通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输；recovering, by the network-side node, the data transmission of the service through the target beam in the at least one beam set;其中，所述目标波束为所述终端或者所述网络侧节点在所述至少一个波束集合中确定的目标波束，且所述目标波束是一个或者多个高频波束。The target beam is a target beam determined by the terminal or the network side node in the at least one beam set, and the target beam is one or more high-frequency beams.18.根据权利要求17所述的方法，其特征在于，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤之后，所述网络侧节点通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输的步骤之前，所述方法还包括：18 . The method according to claim 17 , wherein after the step of sending the trigger signaling indicating at least one beam set by the network side node to the terminal, the network side node passes the at least one beam set through the step 18 . Before the step of restoring the data transmission of the service by the target beam in the method, the method further includes:所述网络侧节点通过所述至少一个波束集合内的波束传输参考信号；transmitting, by the network-side node, a reference signal through a beam in the at least one beam set;其中，所述目标波束为所述网络侧节点对所述参考信号进行测量而确定的目标波束或者所述目标波束为所述网络侧节点接收所述终端通知的目标波束。Wherein, the target beam is the target beam determined by the network-side node by measuring the reference signal, or the target beam is the target beam that the network-side node receives the notification from the terminal.19.根据权利要求18所述的方法，其特征在于，所述网络侧节点通过所述至少一个波束集合内的波束传输参考信号的步骤，包括：19. The method according to claim 18, wherein the step of transmitting the reference signal by the network side node through the beams in the at least one beam set comprises:所述网络侧节点在所述至少一个波束集合内的下行波束上向所述终端发送参考信号；sending, by the network-side node, a reference signal to the terminal on a downlink beam in the at least one beam set;所述网络侧节点接收所述终端发送的指示所述目标波束的反馈信息，其中，所述目标波束为所述终端根据对所述网络侧节点发射的参考信号进行测量的测量结果确定的下行波束。The network side node receives the feedback information sent by the terminal indicating the target beam, where the target beam is a downlink beam determined by the terminal according to a measurement result of measuring the reference signal transmitted by the network side node .20.根据权利要求18所述的方法，其特征在于，所述网络侧节点通过所述至少一个波束集合内的波束传输参考信号的步骤，包括：20. The method according to claim 18, wherein the step of transmitting the reference signal by the network side node through the beams in the at least one beam set comprises:所述网络侧节点接收所述终端在所述至少一个波束集合内的上行波束上发送的参考信号；receiving, by the network-side node, a reference signal sent by the terminal on an uplink beam in the at least one beam set;所述网络侧节点对所述终端发送的参考信号进行测量，获取测量结果；The network side node measures the reference signal sent by the terminal, and obtains the measurement result;所述网络侧节点根据所述测量结果，在所述至少一个波束集合的上行波束中确定所述目标波束；The network side node determines the target beam in the uplink beam of the at least one beam set according to the measurement result;所述网络侧节点向所述终端发送指示所述目标波束的反馈信息。The network side node sends feedback information indicating the target beam to the terminal.21.根据权利要求20所述的方法，其特征在于，所述网络侧节点根据所述测量结果，在所述至少一个波束集合的上行波束中确定所述目标波束的步骤，包括：21. The method according to claim 20, wherein the step of determining, by the network side node, the target beam in the uplink beam of the at least one beam set according to the measurement result, comprises:所述网络侧节点根据所述测量结果，在所述至少一个波束集合的上行波束中确定传输质量最优的上行波束作为所述目标波束；或者The network side node determines, according to the measurement result, an uplink beam with the best transmission quality among the uplink beams of the at least one beam set as the target beam; or若所述网络侧节点根据所述测量结果查找到在所述至少一个波束集合内存在传输质量高于第一预设门限的上行波束时，将所述传输质量高于预设门限的上行波束确定为所述目标波束。If the network side node finds, according to the measurement result, that there is an uplink beam whose transmission quality is higher than the first preset threshold in the at least one beam set, determine the uplink beam whose transmission quality is higher than the preset threshold for the target beam.22.根据权利要求21所述的方法，其特征在于，所述传输质量包括接收功率、接收质量和信噪比中的至少一项。22. The method of claim 21, wherein the transmission quality comprises at least one of received power, received quality, and signal-to-noise ratio.23.根据权利要求18所述的方法，其特征在于，所述触发信令包括参考信号的发送图样信息，或者上述触发信令用于指示所述终端与所述网络侧节点预先约定的参考信号的发送图样信息；23. The method according to claim 18, wherein the trigger signaling comprises transmission pattern information of a reference signal, or the trigger signaling is used to indicate a reference signal pre-agreed by the terminal and the network side node send pattern information;其中，所述发送图样信息用于指示所述至少一个波束集合，以及指示所述终端与所述网络侧节点之间在所述至少一个波束集合内发送参考信号的次序。The sending pattern information is used to indicate the at least one beam set, and to indicate the order in which reference signals are sent between the terminal and the network side node in the at least one beam set.24.根据权利要求23所述的方法，其特征在于，所述发送参考信号的次序，包括：24. The method according to claim 23, wherein the order of sending reference signals comprises:优先发送所述至少一个波束集合内的高频波束的次序。The order in which the high frequency beams within the at least one beam set are transmitted preferentially.25.根据权利要求23所述的方法，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，则所述发送参考信号的次序，包括：25. The method according to claim 23, wherein the at least one beam set includes an original beam set including the high-frequency beam maintained in advance by the terminal, and the order of sending the reference signal is: include:在所述原波束集合内，以所述高频波束为中心按照空间方位由近到远的发送次序；或者In the original beam set, the high-frequency beam as the center is sent in order from near to far in spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位远近交替的发送次序；或者In the original beam set, with the high-frequency beam as the center, the transmission order is alternately far and near according to the spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位由远到近的发送次序。In the original beam set, the high-frequency beam is taken as the center, and the transmission order is from far to near according to the spatial azimuth.26.根据权利要求23所述的方法，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，以及至少一个目标波束集合，则所述发送参考信号的次序，包括：26. The method according to claim 23, wherein the at least one beam set includes an original beam set including the high-frequency beam maintained by the terminal in advance, and at least one target beam set, then the Describe the order of sending reference signals, including:在所述原波束集合和所述至少一个目标波束集合内的波束混合发送次序；或者beam mixing transmission order within the original beam set and the at least one target beam set; or若只包括一个目标波束集合，则优先发送所述目标波束集合内的波束的次序；或者If only one target beam set is included, the order of the beams in the target beam set is preferentially transmitted; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合交替发送的次序；或者If multiple target beam sets are included, the beams in the multiple target beam sets are sent preferentially, and the multiple target beam sets are sent alternately in the order of sets; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合顺序发送的次序。If multiple target beam sets are included, the beams within the multiple target beam sets are preferentially sent, and the multiple target beam sets are sent in the order of the sets.27.根据权利要求17至26中任一项所述的方法，其特征在于，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤之前，所述方法还包括：27. The method according to any one of claims 17 to 26, wherein before the step of sending, by the network side node to the terminal, trigger signaling indicating at least one beam set, the method further comprises:所述网络侧节点确定与所述终端之间进行业务传输的高频波束的通信链路异常。The network-side node determines that the communication link of the high-frequency beam for service transmission with the terminal is abnormal.28.根据权利要求27所述的方法，其特征在于，所述通信链路异常，包括：28. The method according to claim 27, wherein the abnormality of the communication link comprises:所述网络侧节点在预定的位置没有收到来自所述终端发送的肯定应答反馈或者否定应答反馈；或者The network side node does not receive the positive response feedback or the negative response feedback sent from the terminal at the predetermined position; or所述网络侧节点测量到所述通信链路的接收质量低于第二预设门限值；或者The network side node measures that the reception quality of the communication link is lower than a second preset threshold; or所述网络侧节点测量到所述通信链路接收功率低于第三预设门限值；或者The network side node measures that the received power of the communication link is lower than a third preset threshold; or所述网络侧节点测量到所述通信链路接收信噪比低于第四预设门限值；或者The network side node measures that the received signal-to-noise ratio of the communication link is lower than a fourth preset threshold; or所述网络侧节点测量的所述通信链路的测量值的变化率达到第五预设门限值。The rate of change of the measurement value of the communication link measured by the network side node reaches a fifth preset threshold value.29.根据权利要求27所述的方法，其特征在于，所述网络侧节点确定与所述终端之间进行业务传输的高频波束的通信链路异常的步骤之后，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤之前，所述方法还包括：29. The method according to claim 27, wherein after the network-side node determines that the communication link of the high-frequency beam for service transmission between the network-side node and the terminal is abnormal, the network-side node sends a notification to the terminal. Before the step of sending the trigger signaling indicating at least one beam set by the terminal, the method further includes:启动预设计数时长的计数器；Start a counter with a preset count duration;则所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤，包括：The step of sending, by the network side node to the terminal, trigger signaling indicating at least one beam set includes:在所述计数器计数到达所述预设计数时长时，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令。When the count of the counter reaches the preset count period, the network-side node sends trigger signaling indicating at least one beam set to the terminal.30.根据权利要求27所述的方法，其特征在于，所述网络侧节点确定与所述终端之间进行业务传输的高频波束的通信链路异常的步骤之后，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤之前，所述方法还包括：30. The method according to claim 27, wherein after the network-side node determines that the communication link of the high-frequency beam for service transmission between the network-side node and the terminal is abnormal, the network-side node sends a notification to the terminal. Before the step of sending the trigger signaling indicating at least one beam set by the terminal, the method further includes:在所述网络侧节点与所述终端之间进行业务传输的高频波束的通信链路异常时，所述网络侧节点切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述终端继续进行所述业务的数据传输；或者When the communication link of the high-frequency beam for service transmission between the network-side node and the terminal is abnormal, the network-side node switches to a wide beam, a low-frequency beam or multiple narrow beams, and uses the wide beam , a low-frequency beam or multiple narrow beams and the terminal to continue data transmission of the service; or在所述网络侧节点与所述终端之间进行业务传输的高频波束的通信链路异常时，所述网络侧节点将所述业务挂起；When the communication link of the high-frequency beam for service transmission between the network-side node and the terminal is abnormal, the network-side node suspends the service;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.31.根据权利要求30所述的方法，其特征在于，所述网络侧节点切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述终端继续进行所述业务的数据传输的步骤，包括：31. The method according to claim 30, wherein the network side node switches to a wide beam, a low frequency beam or multiple narrow beams, and uses the wide beam, low frequency beam or multiple narrow beams to communicate with the The step that the terminal continues to perform data transmission of the service, including:所述网络侧节点切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述终端以预设低调度编码方案或者预设小数据包方式继续进行所述业务的数据传输。The network-side node switches to a wide beam, a low-frequency beam, or multiple narrow beams, and uses the wide beam, low-frequency beam, or multiple narrow beams to communicate with the terminal in a preset low-scheduling coding scheme or a preset small data packet mode The data transmission of the service is continued.32.根据权利要求17至26中任一项所述的方法，其特征在于，所述网络侧节点接收终端发送的恢复机制通知消息，包括：32. The method according to any one of claims 17 to 26, wherein the network side node receives a recovery mechanism notification message sent by the terminal, comprising:所述网络侧节点接收所述终端通过宽波束或低频波束或多个窄波束发送的恢复机制通知消息；receiving, by the network-side node, a recovery mechanism notification message sent by the terminal through a wide beam or a low-frequency beam or multiple narrow beams;其中，所述宽波束为波瓣比所述高频波束的波瓣要宽的波束，所述低频波束为频率比所述高频波束的频率要低的波束，所述窄波束为波瓣与所述高频波束的波瓣的差值在预设范围内的波束。Wherein, the wide beam is a beam whose lobe is wider than that of the high-frequency beam, the low-frequency beam is a beam whose frequency is lower than that of the high-frequency beam, and the narrow beam is a lobe with a The difference between the lobes of the high-frequency beam is within a preset range.33.根据权利要求17至26中任一项所述的方法，其特征在于，所述网络侧节点向所述终端发送指示至少一个波束集合的触发信令的步骤，包括：33. The method according to any one of claims 17 to 26, wherein the step of the network-side node sending trigger signaling indicating at least one beam set to the terminal comprises:所述网络侧节点在宽波束或低频波束或多个窄波束通过物理层下行控制信息向所述终端发送指示至少一个波束集合的触发信令；The network side node sends trigger signaling indicating at least one beam set to the terminal through the physical layer downlink control information in the wide beam or the low frequency beam or multiple narrow beams;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.34.根据权利要求17至26中任一项所述的方法，其特征在于，所述方法还包括：34. The method of any one of claims 17 to 26, wherein the method further comprises:在所述网络侧节点与所述终端通过所述目标波束恢复所述业务的数据传输后并在数据传输时，所述网络侧节点与所述终端通过波束训练过程，寻找切换波束；After the network-side node and the terminal resume data transmission of the service through the target beam and during data transmission, the network-side node and the terminal search for a switching beam through a beam training process;所述网络侧节点切换至所述切换波束，并使用所述切换波束与所述终端进行所述业务的数据传输。The network side node switches to the switching beam, and uses the switching beam to perform data transmission of the service with the terminal.35.一种终端，其特征在于，包括：35. A terminal, characterized in that, comprising:第一异常确定模块，用于确定与网络侧节点之间进行业务传输的高频波束的通信链路异常；a first abnormality determination module, configured to determine the abnormality of the communication link of the high-frequency beam for service transmission with the network side node;第一计数器启动模块，用于启动预设计数时长的计数器；a first counter startup module, used to start a counter with a preset count duration;通知消息发送模块，用于在所述计数器计数到达所述预设计数时长时，向所述网络侧节点发送恢复机制通知消息；a notification message sending module, configured to send a recovery mechanism notification message to the network side node when the counter count reaches the preset count duration;触发信令接收模块，用于接收所述网络侧节点发送的指示至少一个波束集合的触发信令；a trigger signaling receiving module, configured to receive the trigger signaling indicating at least one beam set sent by the network side node;第一数据传输恢复模块，用于通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输；a first data transmission restoration module, configured to restore the data transmission of the service through the target beam in the at least one beam set;其中，所述目标波束为所述终端或者所述网络侧节点在所述至少一个波束集合中确定的目标波束，且所述目标波束是一个或者多个高频波束。The target beam is a target beam determined by the terminal or the network side node in the at least one beam set, and the target beam is one or more high-frequency beams.36.根据权利要求35所述的终端，其特征在于，所述终端还包括：36. The terminal according to claim 35, wherein the terminal further comprises:第一参考信号传输模块，用于通过所述至少一个波束集合内的波束传输参考信号；a first reference signal transmission module, configured to transmit a reference signal through the beams in the at least one beam set;其中，所述目标波束为所述终端对所述参考信号进行测量而确定的目标波束，或者所述目标波束为所述终端接收所述网络侧节点通知的目标波束。Wherein, the target beam is a target beam determined by the terminal measuring the reference signal, or the target beam is a target beam notified by the terminal receiving the network side node.37.根据权利要求36所述的终端，其特征在于，所述第一参考信号传输模块包括：37. The terminal according to claim 36, wherein the first reference signal transmission module comprises:第一参考信号发送单元，用于在所述至少一个波束集合内的上行波束上向所述网络侧节点发送参考信号；a first reference signal sending unit, configured to send a reference signal to the network side node on an uplink beam in the at least one beam set;第一反馈信息接收单元，用于接收所述网络侧节点发送的指示所述目标波束的反馈信息，其中，所述目标波束为所述网络侧节点根据对所述终端发射的参考信号进行测量的测量结果确定的上行波束。A first feedback information receiving unit, configured to receive feedback information sent by the network side node indicating the target beam, where the target beam is measured by the network side node according to the reference signal transmitted by the terminal The uplink beam determined by the measurement result.38.根据权利要求36所述的终端，其特征在于，所述第一参考信号传输模块包括：38. The terminal according to claim 36, wherein the first reference signal transmission module comprises:第一参考信号接收单元，用于接收所述网络侧节点在所述至少一个波束集合内的下行波束上发送的参考信号；a first reference signal receiving unit, configured to receive a reference signal sent by the network-side node on a downlink beam in the at least one beam set;第一测量单元，用于对所述网络侧节点发送的参考信号进行测量，获取测量结果；a first measurement unit, configured to measure the reference signal sent by the network side node, and obtain a measurement result;第一确定单元，用于根据所述测量结果，在所述至少一个波束集合的下行波束中确定所述目标波束；a first determining unit, configured to determine the target beam from the downlink beams of the at least one beam set according to the measurement result;第一反馈信息发送单元，用于向所述网络侧节点发送指示所述目标波束的反馈信息。A first feedback information sending unit, configured to send feedback information indicating the target beam to the network side node.39.根据权利要求38所述的终端，其特征在于，所述第一确定单元用于根据所述测量结果，在所述至少一个波束集合的下行波束中确定传输质量最优的下行波束作为所述目标波束；或者39. The terminal according to claim 38, wherein the first determining unit is configured to determine, according to the measurement result, a downlink beam with the best transmission quality among the downlink beams of the at least one beam set as the the target beam; or所述第一确定单元用于若所述终端根据所述测量结果查找到在所述至少一个波束集合内存在传输质量高于第一预设门限的下行波束时，将所述传输质量高于预设门限的下行波束确定为所述目标波束。The first determining unit is configured to, if the terminal finds, according to the measurement result, that there is a downlink beam with a transmission quality higher than a first preset threshold in the at least one beam set, set the transmission quality higher than the preset threshold. The downlink beam with the threshold is determined as the target beam.40.根据权利要求39所述的终端，其特征在于，所述传输质量包括接收功率、接收质量和信噪比中的至少一项。40. The terminal according to claim 39, wherein the transmission quality comprises at least one of received power, received quality, and signal-to-noise ratio.41.根据权利要求36所述的终端，其特征在于，所述触发信令包括参考信号的发送图样信息，或者上述触发信令用于指示所述终端与所述网络侧节点预先约定的参考信号的发送图样信息；41. The terminal according to claim 36, wherein the trigger signaling comprises transmission pattern information of a reference signal, or the trigger signaling is used to indicate a reference signal pre-agreed by the terminal and the network side node send pattern information;其中，所述发送图样信息用于指示所述至少一个波束集合，以及指示所述终端与所述网络侧节点之间在所述至少一个波束集合内发送参考信号的次序。The sending pattern information is used to indicate the at least one beam set, and to indicate the order in which reference signals are sent between the terminal and the network side node in the at least one beam set.42.根据权利要求41所述的终端，其特征在于，所述发送参考信号的次序，包括：42. The terminal according to claim 41, wherein the order of sending reference signals comprises:优先发送所述至少一个波束集合内的高频波束的次序。The order in which the high frequency beams within the at least one beam set are transmitted preferentially.43.根据权利要求41所述的终端，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，则所述发送参考信号的次序，包括：43. The terminal according to claim 41, wherein the at least one beam set includes an original beam set including the high-frequency beam maintained in advance by the terminal, and the order of sending the reference signal is: include:在所述原波束集合内，以所述高频波束为中心按照空间方位由近到远的发送次序；或者In the original beam set, the high-frequency beam as the center is sent in order from near to far in spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位远近交替的发送次序；或者In the original beam set, with the high-frequency beam as the center, the transmission order is alternately far and near according to the spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位由远到近的发送次序。In the original beam set, the high-frequency beam is taken as the center, and the transmission order is from far to near according to the spatial azimuth.44.根据权利要求41所述的终端，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，以及至少一个目标波束集合，则所述发送参考信号的次序，包括：44. The terminal according to claim 41, wherein the at least one beam set includes an original beam set including the high-frequency beam and at least one target beam set maintained by the terminal in advance, then the Describe the order of sending reference signals, including:在所述原波束集合和所述至少一个目标波束集合内的波束混合发送次序；或者beam mixing transmission order within the original beam set and the at least one target beam set; or若只包括一个目标波束集合，则优先发送所述目标波束集合内的波束的次序；或者If only one target beam set is included, the order of the beams in the target beam set is preferentially transmitted; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合交替发送的次序；或者If multiple target beam sets are included, the beams in the multiple target beam sets are sent preferentially, and the multiple target beam sets are sent alternately in the order of sets; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合顺序发送的次序。If multiple target beam sets are included, the beams within the multiple target beam sets are preferentially sent, and the multiple target beam sets are sent in the order of the sets.45.根据权利要求35所述的终端，其特征在于，所述通信链路异常，包括：45. The terminal according to claim 35, wherein the abnormality of the communication link comprises:所述终端在预定的位置没有收到来自所述网络侧节点发送的肯定应答反馈或者否定应答反馈；或者The terminal does not receive the positive response feedback or the negative response feedback sent from the network side node at the predetermined position; or所述终端测量到所述通信链路的接收质量低于第二预设门限值；或者The terminal measures that the reception quality of the communication link is lower than a second preset threshold; or所述终端测量到所述通信链路接收功率低于第三预设门限值；或者The terminal measures that the received power of the communication link is lower than a third preset threshold; or所述终端测量到所述通信链路接收信噪比低于第四预设门限值；或者The terminal measures that the received signal-to-noise ratio of the communication link is lower than a fourth preset threshold; or所述终端测量的所述通信链路的测量值的变化率达到第五预设门限值。The rate of change of the measurement value of the communication link measured by the terminal reaches a fifth preset threshold value.46.根据权利要求35所述的终端，其特征在于，所述通知消息发送模块用于通过宽波束或低频波束或多个窄波束向所述网络侧节点发送恢复机制通知消息；46. The terminal according to claim 35, wherein the notification message sending module is configured to send a recovery mechanism notification message to the network side node through a wide beam or a low frequency beam or multiple narrow beams;其中，所述宽波束为波瓣比所述高频波束的波瓣要宽的波束，所述低频波束为频率比所述高频波束的频率要低的波束，所述窄波束为波瓣与所述高频波束的波瓣的差值在预设范围内的波束。Wherein, the wide beam is a beam whose lobe is wider than that of the high-frequency beam, the low-frequency beam is a beam whose frequency is lower than that of the high-frequency beam, and the narrow beam is a lobe with a The difference between the lobes of the high-frequency beam is within a preset range.47.根据权利要求35所述的终端，其特征在于，所述终端还包括：47. The terminal according to claim 35, wherein the terminal further comprises:第一数据传输模块，用于在所述终端与所述网络侧节点之间进行业务传输的高频波束的通信链路异常时，所述终端切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述网络侧节点继续进行所述业务的数据传输；或者a first data transmission module, configured to switch the terminal to a wide beam, a low frequency beam or multiple narrow beams when the communication link of the high frequency beam for service transmission between the terminal and the network side node is abnormal, and use the wide beam, low frequency beam or multiple narrow beams to continue data transmission of the service with the network side node; or第一业务挂起模块，用于在所述终端与所述网络侧节点之间进行业务传输的高频波束的通信链路异常时，将所述业务挂起；a first service suspension module, configured to suspend the service when the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.48.根据权利要求47所述的终端，其特征在于，所述第一数据传输模块用于切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述网络侧节点以预设低调度编码方案或者预设小数据包方式继续进行所述业务的数据传输。48. The terminal according to claim 47, wherein the first data transmission module is configured to switch to a wide beam, a low frequency beam or a plurality of narrow beams, and use the wide beam, a low frequency beam or a plurality of narrow beams The beam and the network side node continue to perform data transmission of the service in a preset low-scheduling coding scheme or a preset small data packet mode.49.根据权利要求35至44中任一项所述的终端，其特征在于，所述触发信令接收模块用于在宽波束或低频波束或多个窄波束接收所述网络侧节点通过物理层下行控制信息发送的指示至少一个波束集合的触发信令；49. The terminal according to any one of claims 35 to 44, wherein the trigger signaling receiving module is configured to receive the network side node through a physical layer in a wide beam or a low frequency beam or multiple narrow beams Trigger signaling indicating at least one beam set sent by downlink control information;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.50.根据权利要求35至44中任一项所述的终端，其特征在于，所述终端还包括：50. The terminal according to any one of claims 35 to 44, wherein the terminal further comprises:第一寻找模块，用于在所述终端与所述网络侧节点通过所述目标波束恢复所述业务的数据传输后并在数据传输时，与所述网络侧节点通过波束训练过程，寻找切换波束；The first search module is used to search for switching beams with the network side node through a beam training process after the terminal and the network side node restore the data transmission of the service through the target beam and during data transmission ;第一切换模块，用于切换至所述切换波束，并使用所述切换波束与所述网络侧节点进行所述业务的数据传输。The first switching module is configured to switch to the switching beam, and use the switching beam to perform data transmission of the service with the network side node.51.一种网络侧节点，其特征在于，包括：51. A network side node, comprising:通知消息接收模块，用于接收终端发送的恢复机制通知消息，其中，所述恢复机制通知消息为所述终端确定与所述网络侧节点之间进行业务传输的高频波束的通信链路异常后，启动预设计数时长的计数器，并在所述计数器计数到达所述预设计数时长时发送的；A notification message receiving module, configured to receive a recovery mechanism notification message sent by the terminal, wherein the recovery mechanism notification message is an abnormality after the terminal determines that the communication link of the high-frequency beam for service transmission between the terminal and the network side node is abnormal , start a counter with a preset count duration, and send it when the count of the counter reaches the preset count duration;触发信令发送模块，用于若所述网络侧节点与终端之间进行业务传输的高频波束的通信链路异常，向所述终端发送指示至少一个波束集合的触发信令；a trigger signaling sending module, configured to send a trigger signaling indicating at least one beam set to the terminal if the communication link of the high-frequency beam for service transmission between the network side node and the terminal is abnormal;第二数据传输恢复模块，用于通过所述至少一个波束集合中的目标波束恢复所述业务的数据传输；a second data transmission restoration module, configured to restore the data transmission of the service through the target beam in the at least one beam set;其中，所述目标波束为所述终端或者所述网络侧节点在所述至少一个波束集合中确定的目标波束，且所述目标波束是一个或者多个高频波束。The target beam is a target beam determined by the terminal or the network side node in the at least one beam set, and the target beam is one or more high-frequency beams.52.根据权利要求51所述的网络侧节点，其特征在于，所述网络侧节点还包括：52. The network side node according to claim 51, wherein the network side node further comprises:第二参考信号传输模块，用于通过所述至少一个波束集合内的波束传输参考信号；a second reference signal transmission module, configured to transmit a reference signal through the beams in the at least one beam set;其中，所述目标波束为所述网络侧节点对所述参考信号进行测量而确定的目标波束或者所述目标波束为所述网络侧节点接收所述终端通知的目标波束。Wherein, the target beam is the target beam determined by the network-side node by measuring the reference signal, or the target beam is the target beam that the network-side node receives the notification from the terminal.53.根据权利要求52所述的网络侧节点，其特征在于，所述第二参考信号传输模块包括：53. The network side node according to claim 52, wherein the second reference signal transmission module comprises:第二参考信号发送单元，用于在所述至少一个波束集合内的下行波束上向所述终端发送参考信号；a second reference signal sending unit, configured to send a reference signal to the terminal on a downlink beam in the at least one beam set;第二反馈信息接收单元，用于接收所述终端发送的指示所述目标波束的反馈信息，其中，所述目标波束为所述终端根据对所述网络侧节点发射的参考信号进行测量的测量结果确定的下行波束。The second feedback information receiving unit is configured to receive feedback information sent by the terminal indicating the target beam, where the target beam is a measurement result obtained by the terminal according to the measurement of the reference signal transmitted by the network side node Determined downlink beam.54.根据权利要求52所述的网络侧节点，其特征在于，所述第二参考信号传输模块包括：54. The network side node according to claim 52, wherein the second reference signal transmission module comprises:第二参考信号接收单元，用于接收所述终端在所述至少一个波束集合内的上行波束上发送的参考信号；a second reference signal receiving unit, configured to receive a reference signal sent by the terminal on an uplink beam in the at least one beam set;第二测量单元，用于对所述终端发送的参考信号进行测量，获取测量结果；a second measurement unit, configured to measure the reference signal sent by the terminal to obtain a measurement result;第二确定单元，用于根据所述测量结果，在所述至少一个波束集合的上行波束中确定所述目标波束；a second determining unit, configured to determine the target beam in the uplink beam of the at least one beam set according to the measurement result;第二反馈信息发送单元，用于向所述终端发送指示所述目标波束的反馈信息。The second feedback information sending unit is configured to send feedback information indicating the target beam to the terminal.55.根据权利要求54所述的网络侧节点，其特征在于，所述第二确定单元用于根据所述测量结果，在所述至少一个波束集合的上行波束中确定传输质量最优的上行波束作为所述目标波束；或者55. The network side node according to claim 54, wherein the second determining unit is configured to determine, according to the measurement result, an uplink beam with the best transmission quality among uplink beams in the at least one beam set as the target beam; or所述第二确定单元用于若所述网络侧节点根据所述测量结果查找到在所述至少一个波束集合内存在传输质量高于第一预设门限的上行波束时，将所述传输质量高于预设门限的上行波束确定为所述目标波束。The second determining unit is configured to, if the network side node finds, according to the measurement result, that there is an uplink beam with a transmission quality higher than a first preset threshold in the at least one beam set, set the transmission quality as high. The uplink beam within the preset threshold is determined as the target beam.56.根据权利要求55所述的网络侧节点，其特征在于，所述传输质量包括接收功率、接收质量和信噪比中的至少一项。56. The network-side node according to claim 55, wherein the transmission quality comprises at least one of received power, received quality, and signal-to-noise ratio.57.根据权利要求54所述的网络侧节点，其特征在于，所述触发信令包括参考信号的发送图样信息，或者上述触发信令用于指示所述终端与所述网络侧节点预先约定的参考信号的发送图样信息；57. The network side node according to claim 54, wherein the trigger signaling comprises transmission pattern information of reference signals, or the trigger signaling is used to instruct the terminal to pre-agreed with the network side node. transmission pattern information of the reference signal;其中，所述发送图样信息用于指示所述至少一个波束集合，以及指示所述终端与所述网络侧节点之间在所述至少一个波束集合内发送参考信号的次序。The sending pattern information is used to indicate the at least one beam set, and to indicate the order in which reference signals are sent between the terminal and the network side node in the at least one beam set.58.根据权利要求57所述的网络侧节点，其特征在于，所述发送参考信号的次序，包括：58. The network side node according to claim 57, wherein the order of sending reference signals comprises:优先发送所述至少一个波束集合内的高频波束的次序。The order in which the high frequency beams within the at least one beam set are transmitted preferentially.59.根据权利要求57所述的网络侧节点，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，则所述发送参考信号的次序，包括：59. The network-side node according to claim 57, wherein the at least one beam set includes the original beam set including the high-frequency beam maintained by the terminal in advance, and the sequence, including:在所述原波束集合内，以所述高频波束为中心按照空间方位由近到远的发送次序；或者In the original beam set, the high-frequency beam as the center is sent in order from near to far in spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位远近交替的发送次序；或者In the original beam set, with the high-frequency beam as the center, the transmission order is alternately far and near according to the spatial azimuth; or在所述原波束集合内，以所述高频波束为中心按照空间方位由远到近的发送次序。In the original beam set, the high-frequency beam is taken as the center, and the transmission order is from far to near according to the spatial azimuth.60.根据权利要求57所述的网络侧节点，其特征在于，所述至少一个波束集合包括所述终端预先维护的包括所述高频波束在内的原波束集合，以及至少一个目标波束集合，则所述发送参考信号的次序，包括：60. The network-side node according to claim 57, wherein the at least one beam set comprises an original beam set including the high-frequency beam maintained by the terminal in advance, and at least one target beam set, Then the order of sending reference signals includes:在所述原波束集合和所述至少一个目标波束集合内的波束混合发送次序；或者beam mixing transmission order within the original beam set and the at least one target beam set; or若只包括一个目标波束集合，则优先发送所述目标波束集合内的波束的次序；或者If only one target beam set is included, the order of the beams in the target beam set is preferentially transmitted; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合交替发送的次序；或者If multiple target beam sets are included, the beams in the multiple target beam sets are sent preferentially, and the multiple target beam sets are sent alternately in the order of sets; or若包括多个目标波束集合，则优先发送所述多个目标波束集合内的波束，且所述多个目标波束集合之间按集合顺序发送的次序。If multiple target beam sets are included, the beams within the multiple target beam sets are preferentially sent, and the multiple target beam sets are sent in the order of the sets.61.根据权利要求51至60中任一项所述的网络侧节点，其特征在于，所述网络侧节点还包括：61. The network side node according to any one of claims 51 to 60, wherein the network side node further comprises:第二异常确定模块，用于所述网络侧节点确定与所述终端之间进行业务传输的高频波束的通信链路异常。The second abnormality determination module is used for the network side node to determine the abnormality of the communication link of the high frequency beam for service transmission with the terminal.62.根据权利要求61所述的网络侧节点，其特征在于，所述通信链路异常，包括：62. The network side node according to claim 61, wherein the abnormality of the communication link comprises:所述网络侧节点在预定的位置没有收到来自所述终端发送的肯定应答反馈或者否定应答反馈；或者The network side node does not receive the positive response feedback or the negative response feedback sent from the terminal at the predetermined position; or所述网络侧节点测量到所述通信链路的接收质量低于第二预设门限值；或者The network side node measures that the reception quality of the communication link is lower than a second preset threshold; or所述网络侧节点测量到所述通信链路接收功率低于第三预设门限值；或者The network side node measures that the received power of the communication link is lower than a third preset threshold; or所述网络侧节点测量到所述通信链路接收信噪比低于第四预设门限值；或者The network side node measures that the received signal-to-noise ratio of the communication link is lower than a fourth preset threshold; or所述网络侧节点测量的所述通信链路的测量值的变化率达到第五预设门限值。The rate of change of the measurement value of the communication link measured by the network side node reaches a fifth preset threshold value.63.根据权利要求61所述的网络侧节点，其特征在于，所述网络侧节点还包括：63. The network side node according to claim 61, wherein the network side node further comprises:第二计数器启动模块，用于启动预设计数时长的计数器；The second counter start module is used to start the counter with preset count duration;则所述触发信令发送模块，用于在所述计数器计数到达所述预设计数时长时，向所述终端发送指示至少一个波束集合的触发信令。The trigger signaling sending module is configured to send trigger signaling indicating at least one beam set to the terminal when the count of the counter reaches the preset count duration.64.根据权利要求61所述的网络侧节点，其特征在于，所述网络侧节点还包括：64. The network side node according to claim 61, wherein the network side node further comprises:第二数据传输模块，用于在所述网络侧节点与所述终端之间进行业务传输的高频波束的通信链路异常时，所述网络侧节点切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述终端继续进行所述业务的数据传输；或者The second data transmission module is configured to switch the network side node to a wide beam, a low frequency beam or a plurality of narrow beams when the communication link of the high frequency beam for service transmission between the network side node and the terminal is abnormal. beam, and use the wide beam, low frequency beam or multiple narrow beams to continue data transmission of the service with the terminal; or第二业务挂起模块，用于在所述网络侧节点与所述终端之间进行业务传输的高频波束的通信链路异常时，所述网络侧节点将所述业务挂起；A second service suspension module, configured to suspend the service by the network side node when the communication link of the high-frequency beam for service transmission between the network side node and the terminal is abnormal;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.65.根据权利要求64所述的网络侧节点，其特征在于，所述第二数据传输模块用于切换至宽波束、低频波束或者多个窄波束，并使用所述宽波束、低频波束或者多个窄波束与所述终端以预设低调度编码方案或者预设小数据包方式继续进行所述业务的数据传输。65. The network side node according to claim 64, wherein the second data transmission module is configured to switch to a wide beam, a low frequency beam or multiple narrow beams, and use the wide beam, low frequency beam or multiple narrow beams. The two narrow beams and the terminal continue to perform data transmission of the service in a preset low-scheduling coding scheme or a preset small data packet mode.66.根据权利要求51至60中任一项所述的网络侧节点，其特征在于，所述通知消息接收模块，用于所述网络侧节点接收所述终端通过宽波束或低频波束或多个窄波束发送的恢复机制通知消息；66. The network side node according to any one of claims 51 to 60, wherein the notification message receiving module is used by the network side node to receive the terminal through a wide beam or a low frequency beam or a plurality of Recovery mechanism notification messages for narrow beam transmission;其中，所述宽波束为波瓣比所述高频波束的波瓣要宽的波束，所述低频波束为频率比所述高频波束的频率要低的波束，所述窄波束为波瓣与所述高频波束的波瓣的差值在预设范围内的波束。Wherein, the wide beam is a beam whose lobe is wider than that of the high-frequency beam, the low-frequency beam is a beam whose frequency is lower than that of the high-frequency beam, and the narrow beam is a lobe with a The difference between the lobes of the high-frequency beam is within a preset range.67.根据权利要求51至60中任一项所述的网络侧节点，其特征在于，所述触发信令发送模块用于在宽波束或低频波束或多个窄波束通过物理层下行控制信息向所述终端发送指示至少一个波束集合的触发信令；67. The network-side node according to any one of claims 51 to 60, wherein the trigger signaling sending module is configured to send a wide beam or a low frequency beam or multiple narrow beams to the network through physical layer downlink control information. sending, by the terminal, trigger signaling indicating at least one beam set;其中，所述宽波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣比所述高频波束的波瓣要宽并覆盖所述终端的波束；Wherein, the wide beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the lobe is wider than the lobe of the high-frequency beam and covers the beam of the terminal;所述低频波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且频率比所述高频波束的频率要低并覆盖所述终端的波束；The low-frequency beam is pre-negotiated by the terminal and the network-side node or notified by the network-side node, and the frequency is lower than the frequency of the high-frequency beam and covers the beam of the terminal;所述窄波束为所述终端与所述网络侧节点预先协商或者由所述网络侧节点通知的，且波瓣与所述高频波束的波瓣的差值在预设范围内并覆盖所述终端的波束。The narrow beam is pre-negotiated by the terminal and the network side node or notified by the network side node, and the difference between the lobe and the lobe of the high frequency beam is within a preset range and covers the terminal beam.68.根据权利要求51至60中任一项所述的网络侧节点，其特征在于，所述网络侧节点还包括：68. The network side node according to any one of claims 51 to 60, wherein the network side node further comprises:第二寻找模块，用于在所述网络侧节点与所述终端通过所述目标波束恢复所述业务的数据传输后并在数据传输时，与所述终端通过波束训练过程，寻找切换波束；a second searching module, configured to search for switching beams with the terminal through a beam training process after the network-side node and the terminal recover the data transmission of the service through the target beam and during data transmission;第二切换模块，用于所述网络侧节点切换至所述切换波束，并使用所述切换波束与所述终端进行所述业务的数据传输。The second switching module is used for the network side node to switch to the switching beam, and use the switching beam to perform data transmission of the service with the terminal.

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