CN113966007A - Method, device and electronic device for transmitting CSI-RS configuration information - Google Patents
Method, device and electronic device for transmitting CSI-RS configuration informationDownload PDFInfo
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- CN113966007A CN113966007ACN202010708034.1ACN202010708034ACN113966007ACN 113966007 ACN113966007 ACN 113966007ACN 202010708034 ACN202010708034 ACN 202010708034ACN 113966007 ACN113966007 ACN 113966007A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting CSI-RS configuration information, and an electronic device.
Background
Channel State Information (CSI) -Reference Signal (RS) may be used for synchronization in a connection State, CSI measurement, Radio Resource Management (RRM) measurement, Radio link monitoring, beam failure detection, beam Management, Automatic Gain Control (AGC), and the like.
The CSI-RS in the existing network belongs to configuration of a connected state, and can only support connected-state UE, and a terminal (User Equipment, UE) in an idle (idle) state or an inactive (inactive) state can only use a Synchronization Signal Block (SSB) to perform RRM measurement, Synchronization, AGC, and the like, and cannot use the CSI-RS to complete these functions.
If the CSI-RS serving the connected UE is further configured to the idle UE through the system information, the UE can be notified to receive the system information again only through the system information change mode when the network does not need to continuously transmit a certain CSI-RS for the connected UE or can newly configure a certain CSI-RS for the idle UE. However, since the existing UE does not support CSI-RS reception in idle state, after CSI-RS configuration in evolved version supporting idle or inactive state, the existing idle or inactive UE receives a change of a system message indicating CSI-RS transmission change, which will not have any meaning.
Disclosure of Invention
The embodiment of the application provides a transmission method and device of CSI-RS configuration information and electronic equipment, and the CSI-RS configuration information can be indicated to a terminal in an idle state.
In a first aspect, an embodiment of the present application provides a method for transmitting CSI-RS configuration information, where the method includes:
the method comprises the steps that a terminal receives first information through a first Physical Downlink Shared Channel (PDSCH), wherein the first information comprises at least one of the following items:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In a second aspect, an embodiment of the present application provides a method for transmitting CSI-RS configuration information, where the method includes:
the method comprises the following steps that network side equipment sends first information through a first Physical Downlink Shared Channel (PDSCH), wherein the first information comprises at least one of the following items:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In a third aspect, an embodiment of the present application provides an apparatus for transmitting CSI-RS configuration information, where the apparatus includes:
an obtaining module, configured to receive first information through a first physical downlink shared channel PDSCH, where the first information includes at least one of the following:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In some embodiments, the obtaining module is specifically configured to receive indication information through the first PDCCH, and receive the first information according to the indication information, where the indication information includes at least one of the following:
first sub-indication information for indicating whether the terminal receives the first information;
second sub-indication information for indicating whether the indication information includes scheduling information.
In some embodiments, the scheduling information comprises at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In some embodiments, the PDSCH indicated by the scheduling information transmits at least one of:
first information;
a paging message.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the first sub-indication information indicates that the terminal receives the first information.
In some embodiments, the first sub-indication information is indicated by a bit in a short message field in the downlink control information DCI transmitted through the first PDCCH.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the second sub-indication information indicates that the indication information includes the scheduling information.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the second sub-indication information indicates that the indication information includes scheduling information of a paging message; if the second sub-indication information indicates that the indication information does not include scheduling information of a paging message, the first information is not acquired from the first PDSCH.
In some embodiments, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if a bit in the short message indicator field is a preset code point
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information for the first PDSCH.
In some embodiments, the predetermined code point is 0, 0.
In some embodiments, the preset code point indicates that the first PDSCH includes only the first information.
In some embodiments, the obtaining module is specifically configured to receive a wake-up signal of a paging message, and receive the first information according to the wake-up signal.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
In some embodiments, if the wake-up signal indicates that the terminal receives the first information, the apparatus further includes:
a first receiving module, configured to receive the first PDCCH and/or the first PDSCH in a subsequent paging frames PF or paging opportunities PO, and acquire the first information, where a is a positive integer.
In some embodiments, whether the network side device transmits CSI-RS includes at least one of:
whether one CSI-RS configured by the network side equipment is transmitted or not;
whether each CSI-RS in M CSI-RSs configured by the network side equipment is transmitted or not, wherein M is a positive integer;
whether each set CSI-RS in P CSI-RS sets configured by the network side equipment transmits or not is judged, and P is a positive integer;
whether all CSI-RSs configured by the network side equipment are transmitted or not.
In some embodiments, the obtaining module is further configured to determine, according to the received first information, whether the CSI-RS is transmitted at a second time position after the first time position, where the first time position is located in a current change cycle of the terminal receiving the first information, and the second time position is located in a next change cycle of the current change cycle or is separated from the first time position by a preset time length.
In some embodiments, if the first information indicates CSI-RS configuration information update, the apparatus further includes:
a second receiving module for receiving system information including a CSI-RS configuration.
In some embodiments, if the first information and/or the system information indicates that the network-side device configures Nmax CSI-RSs and meets a preset condition, the apparatus further includes a first processing module, configured to perform at least one of the following operations:
assuming that all CSI-RSs configured by the network side equipment are not transmitted;
not receiving all CSI-RSs configured by the network side equipment;
performing Radio Resource Management (RRM) measurement by using a Synchronization Signal Block (SSB);
performing cell search and/or cell reselection;
wherein the preset condition comprises one of the following conditions:
the terminal does not detect N CSI-RSs, Nmax is a positive integer, and N is a positive integer less than or equal to Nmax; or
The terminal measures the Nmax CSI-RSs, and the measured value is lower than a preset threshold
In some embodiments, the measurement is obtained using any one of the following quality parameter values:
reference signal received power, RSRP;
reference signal received quality, RSRQ;
signal to interference plus noise ratio, SINR;
a received signal strength indication, RSSI;
the result obtained by one measurement can be adopted, or the result obtained by multiple measurements can be used for calculation, and when the measured value is obtained by calculation according to the result obtained by multiple measurements, the measured value can be obtained by calculation in a manner of weighted summation or averaging of the results obtained by multiple measurements.
In some embodiments, the preset threshold is a network side device configuration or a protocol convention.
In a fourth aspect, an embodiment of the present application provides an apparatus for transmitting CSI-RS configuration information, where the apparatus includes:
a sending module, configured to send first information through a first physical downlink shared channel PDSCH, where the first information includes at least one of the following:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In some embodiments, the transmitting module is further configured to transmit indication information through the first PDCCH, the indication information including at least one of:
the first sub-indication information is used for indicating whether the network side equipment sends the first information or not;
second sub-indication information for indicating whether the indication information includes scheduling information.
In some embodiments, the scheduling information comprises at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In some embodiments, the PDSCH indicated by the scheduling information transmits at least one of:
first information;
a paging message.
In some embodiments, the first sub-indication information is indicated by a bit in a short message field in the downlink control information DCI transmitted through the first PDCCH.
In some embodiments, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH.
In some embodiments, if a bit in the short message indicator field is a preset code point, the terminal is instructed to acquire the first information from the first PDSCH
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information for the first PDSCH.
In some embodiments, the predetermined code point is 0, 0.
In some embodiments, the preset code point indicates that the first PDSCH includes only the first information.
In some embodiments, the sending module is further configured to send a wake-up signal of a paging message, where the wake-up signal is used to indicate whether the terminal receives the first information.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
In some embodiments, whether the network side device transmits CSI-RS includes at least one of:
whether one CSI-RS configured by the network side equipment is transmitted or not;
whether each CSI-RS in M CSI-RSs configured by the network side equipment is transmitted or not, wherein M is a positive integer;
whether each set CSI-RS in P CSI-RS sets configured by the network side equipment transmits or not is judged, and P is a positive integer;
whether all CSI-RSs configured by the network side equipment are transmitted or not.
In some embodiments, the sending module is further configured to send system information including CSI-RS configuration if the first information indicates CSI-RS configuration information update.
In a fifth aspect, embodiments of the present application further provide an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method described above.
In a sixth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method as described above.
In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect or the second aspect.
In the embodiment of the application, the terminal receives the first information through the physical downlink shared channel, that is, the CSI-RS related information is received through the physical downlink shared channel, and the network side device does not need to notify the terminal of the CSI-RS related information in a system message change manner, so that even if the terminal is in an idle state, the network side device can indicate the CSI-RS related information to the terminal through the physical downlink shared channel, and support the terminal in the idle state to receive the CSI-RS configuration information or change the configuration information.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 shows a schematic diagram of a wireless communication system;
fig. 2 is a flowchart illustrating a method for transmitting CSI-RS configuration information at a terminal side according to an embodiment of the present application;
fig. 3 is a schematic flowchart illustrating a method for transmitting CSI-RS configuration information at a network side device side according to an embodiment of the present application;
fig. 4 is a schematic structural diagram illustrating an apparatus for transmitting CSI-RS configuration information at a terminal side according to an embodiment of the present application;
fig. 5 is a schematic structural diagram illustrating a transmission apparatus for CSI-RS configuration information at a network side device side according to an embodiment of the present application;
fig. 6 is a schematic diagram illustrating a terminal according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating a configuration of a network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be 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), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in this embodiment. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), or a location server (e.g., an E-SMLC or an lmf (location Manager function)), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the embodiment of the present application does not limit the specific type of the base station and the specific communication system.
For the UE in idle state, RRM measurement and reception of a paging (paging) Physical Downlink Control Channel (PDCCH) are required, where the paging PDCCH is a PDCCH scrambled by Cyclic Redundancy Check (CRC) using a paging-Radio Network temporary Identity (P-RNTI). If received, the paging PDCCH may be used to transmit a Commercial Mobile Alert System (CMAS) and an Earthquake and Tsunami Warning System (ETWS), and/or to page the UE, or to indicate System information update, when the paging PDCCH indicates scheduling of a Physical Downlink Shared Channel (PDSCH), the PDSCH is used to page the UE.
In a Downlink Control Information (DCI) format of a current paging PDCCH transmission, the format includes the following Information fields:
short message Indicator (Short Messages Indicator), occupying 2 bits;
short Messages (Short Messages), occupying 8 bits;
frequency domain resource allocation (Frequency domain resource allocation), wherein the field contains the information of Frequency domain resource allocation of the PDSCH only when the indication of the short message indication field contains PDSCH scheduling, otherwise, the bit in the bit field is reserved bit.
Time domain resource allocation (Time domain resource allocation) occupies 4 bits, and only when the short message indication field indicates that the scheduling of the PDSCH is contained, the field contains the information of the Time domain resource allocation of the PDSCH, otherwise, the bits in the bit field are reserved bits;
mapping Virtual Resource Block (VRB) to Physical Resource Block (PRB), occupying 1 bit, when the short message indication field indicates to contain PDSCH scheduling, the field contains mapping information from VRB to PRB, otherwise the bit in the bit field is reserved bit;
a modulation and coding scheme, occupying 5 bits, and only when the indication field of the short message contains PDSCH scheduling, the field contains information of the modulation and coding scheme, otherwise, the bits in the bit field are reserved bits;
scaling a Transport Block (TB) to occupy 2 bits; when the short message indication field indicates that the PDSCH scheduling is contained, the field contains TB scaling information, otherwise, the bit in the bit field is reserved bit
Reserved bit (Reserved) occupies 6 bits.
In the DCI format, except that reserved occupies 6 bits, only 3 bits are currently used in 8 bits of the short message, 2 bits are used to indicate reception of CMAS and ETWS, respectively, and 1 bit is used to indicate an unlicensed frequency band.
In the information field of the DCI format, a Short Messages Indicator is used to indicate information included in a paging PDCCH, the Indicator includes 2 bits, and a corresponding manner of the indicated information and a code point combination of the 2 bits is shown in table 1:
TABLE 1 Short Message indicator
| Bit Field (Bit Field) | Short Message Indicator |
| 00 | Reserved |
| 01 | Only scheduling information for paging is present in DCI |
| 10 | Only short messages in |
| 11 | The DCI comprises scheduling information and short message for paging |
When the Short Message indicator uses different code points, the information about whether other information fields in the DCI are valid for transmission is also different, as shown in table 2:
TABLE 2
The CSI-RS in the existing network belongs to the configuration of the connection state, and can only support the UE in the connection state, if the CSI-RS serving the UE in the connection state is further configured to the UE in the idle state through the system information, when the network does not need to continuously transmit a certain CSI-RS for the UE in the connection state or can newly configure a certain CSI-RS for the idle UE, the UE can only be informed to re-receive the system information through the system information change mode.
An embodiment of the present application provides a method for transmitting CSI-RS configuration information, as shown in fig. 2, the method includes:
step 101: the method comprises the steps that a terminal receives first information through a first Physical Downlink Shared Channel (PDSCH), wherein the first information comprises at least one of the following items:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In this embodiment, the terminal receives the first information through the physical downlink shared channel, that is, receives the CSI-RS related information through the physical downlink shared channel, and the network side device does not need to notify the terminal of the CSI-RS related information in a system message change manner, so that even if the terminal is in an idle state, the network side device can indicate the CSI-RS related information to the terminal through the physical downlink shared channel, and support the terminal in the idle state to receive the CSI-RS configuration information or change the configuration information.
In some embodiments, receiving the first information comprises:
receiving indication information through the first PDCCH, and receiving the first information according to the indication information, wherein the indication information comprises at least one of the following items:
first sub-indication information for indicating whether the terminal receives the first information;
second sub-indication information for indicating whether the indication information includes scheduling information.
Wherein the scheduling information may include at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In this embodiment, whether the terminal receives the first information may be explicitly or implicitly indicated by the indication information.
When explicitly indicating whether a terminal receives first information, it may be indicated whether the terminal receives the first information through first sub-indication information, and in some embodiments, the receiving the first information according to the indication information includes:
and if the first sub-indication information indicates that the terminal receives the first information, the terminal acquires the first information from the first PDSCH.
In the DCI format of the existing paging PDCCH, there are some unused bits, so the unused bits in the DCI of the paging PDCCH may be used to indicate whether the UE receives the first information, such as whether to receive an update of the CSI-RS configuration information. In a specific example, 1 bit in DCI of a paging PDCCH may be used to instruct a UE to update CSI-RS configuration information, for example, when the bit is 1, the UE is instructed to update CSI-RS configuration information, and then the UE receives first information in a PDSCH scheduled by the PDCCH, that is, a first PDSCH; when the bit is 0, the UE is instructed not to update the CSI-RS configuration information, and the UE does not attempt to receive the first information in the first PDSCH any more. The bit is used as the first sub-indication information, and the first sub-indication information is not limited to occupy 1 bit, and may occupy more bits.
In a specific embodiment, the first sub-indication information may be indicated by a bit in a short message field in downlink control information DCI transmitted by the first PDCCH. Of course, the first sub-indication information may also be indicated by bits not occupied by other fields in the DCI. And if the DCI contains bits indicating that the UE needs to receive the first information, the UE acquires the first information in the first PDSCH.
When implicitly indicating whether a terminal receives first information, whether the terminal receives the first information may be indicated by second sub-indication information, and in some embodiments, the receiving the first information according to the indication information includes:
and if the second sub-indication information indicates that the indication information comprises the scheduling information, the terminal acquires the first information from the first PDSCH.
When the second sub-indication information indicates that the indication information comprises scheduling information, the terminal is implicitly indicated to receive the first information; when the second sub-indication information indicates that the indication information does not include the scheduling information, the terminal is implicitly indicated not to attempt to receive the first information. Therefore, whether the terminal receives the first information or not does not need to be indicated by special information, and signaling overhead can be saved.
The indication information may specifically be DCI of a paging PDCCH, and if the DCI of the paging PDCCH includes scheduling information, the UE attempts to acquire the first information in the scheduled PDSCH, and after receiving the first PDSCH, the UE needs to perform parsing to determine whether the first PDSCH transmits the first information, and if so, the UE acquires the first information. If the DCI of the paging PDCCH does not contain scheduling information, the UE does not attempt to acquire the first information in the scheduled PDSCH.
In this embodiment, the PDSCH indicated by the scheduling information transmits at least one of the following: first information; a paging message. That is, the first information may be transmitted in the same PDSCH as the paging message of the UE, and when no UE is paged, the PDSCH may transmit only the first information; or, when the network side device does not send the first information, the PDSCH may transmit only the paging message, that is, the scheduled PDSCH of the DCI of the paging PDCCH may only contain the paging message without the first information. Of course, the first information may also be transmitted in a different PDSCH from the paging message.
In some embodiments, the second sub-indication information may indicate a bit indication in a short message indicator field in DCI transmitted by the first PDCCH, and of course, the second sub-indication information may also indicate a bit in other fields in the DCI.
In some embodiments, the receiving the first information according to the indication information includes:
if the second sub-indication information indicates that the indication information comprises scheduling information of a paging message, the terminal acquires the first information from the first PDSCH;
if the second sub-indication information indicates that the indication information does not include scheduling information of a paging message, the terminal does not acquire the first information from the first PDSCH.
In the related art, when the short message indicator of the DCI is 'x, 1', the DCI is instructed to include the scheduling information of the paging message, so in this embodiment, when the short message indicator of the DCI is 'x, 1' (x is 0 or 1), the UE may be instructed to further receive the first PDSCH and analyze whether the first PDSCH includes the first information, and if the first PDSCH includes the first information, the UE acquires the first information. That is, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH. Further, if the DCI includes a bit indicating that the first information needs to be received, the UE needs to acquire the paging message and the first information in the first PDSCH. Otherwise, the UE acquires the paging message only in the first PDSCH.
In some embodiments, a specific code point (codepoint), i.e., a bit state combination, may be used in the paging DCI to indicate whether to receive the first information. And when the UE detects the preset code point in the DCI, receiving the first information. For example, a short message indicator is used for indicating, and if a bit in the short message indicator field is a preset code point, the terminal acquires the first information from the first PDSCH.
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information of the first PDSCH, the scheduling information is used for receiving the first PDSCH, and when the preset code point indicates that the first PDCCH includes the scheduling information of the first PDSCH, the UE receives the first information, that is, the preset code point implicitly indicates the UE to acquire the first information. In a specific example, the predetermined code point may be 0, 0.
In some embodiments, the preset code point may also indicate that the first PDSCH only includes the first information, i.e., the preset code point explicitly indicates the UE to acquire the first information.
In a specific example, a bit in a short message indicator field in the paging DCI may be used to indicate that the PDCCH includes neither a short message nor reception of a paging message (i.e., does not include scheduling information of paging), and in this case, a code point in the short message indicator field may be '0, 0'. Further, the UE may also be indicated to receive the first information by using a code point '0, 0', that is, when the code point in the short message indicator field is '0, 0', the PDCCH is indicated to include scheduling information, and the scheduling information is used for receiving the first PDSCH. At this time, since the code point '0, 0' indicates that the PDCCH does not include the short message and does not indicate the reception of the paging message, only the first information is included in the scheduled PDSCH.
It is to be noted that, in this embodiment, the PDSCH indicated by the scheduling information may transmit the first information and the paging message, or may transmit only the first message or the paging message.
In some embodiments, receiving the first information comprises:
and receiving a wake-up signal of a paging message, and receiving the first information according to the wake-up signal, wherein the wake-up signal is used for indicating whether the terminal receives the first information.
That is, for the reception of paging, a wake-up signal is introduced, which is used to indicate whether the UE needs to perform the reception of the paging PDCCH and/or the paging PDSCH in the next a (a > -1) paging frames PF or paging occasions PO.
Wherein the wake-up signal may indicate whether the terminal receives the first PDCCH and/or the first PDSCH. If the wake-up signal indicates that the terminal receives the first PDSCH, the terminal may acquire first information on the first PDSCH; if the wake-up signal indicates that the terminal receives the first PDCCH, the terminal may receive the first PDCCH, then receive the first PDSCH scheduled by the first PDCCH, and obtain the first information on the first PDSCH.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
If the wake-up signal is a control channel, an indication information bit may be included in the control channel to indicate whether the UE receives the first information. If the wake-up signal is a sequence, the generation of the sequence is related to the indication of whether the UE receives the first information, that is, different sequences may be used to indicate whether the UE needs to receive the first information, and the UE determines whether to receive the first information according to the detected sequence.
Since the wake-up signal may also indicate at least one of the following information: indicating whether UE of a preset group is paged or not and whether a first PDCCH contains a short message or not; after the UE detects the wake-up signal, the UE may execute the above one behavior according to the received control information or sequence, or execute a combination of multiple behaviors. For example, a sequence or control information indicates that a UE of a UE group receives a paging message and receives first information, then the UE of the UE group receives the sequence and then receives the paging message and the first information at the same time. If the wake-up signal is a sequence, the generation of the sequence is associated with the plurality of information.
Regardless of whether the wake-up signal employs a control channel or a sequence, if the wake-up signal indicates the terminal to receive the first information, the method further includes:
and receiving the first PDCCH and/or the first PDSCH in a subsequent paging frames PF or paging opportunities PO, and acquiring the first information, where a is a positive integer, and at this time, the first information may be transmitted in a paging PDCCH or a paging PDSCH.
In this embodiment, a network side device configures a set B of CSI-RS resources or a set of CSI-RS resources through system information, where B is a positive integer, and indicates whether the CSI-RS resources or the set of CSI-RS resources are transmitted through first information, and if the CSI-RS resources or the set of CSI-RS resources are indicated to be transmitted, the UE considers that the network side device transmits the CSI-RS resources or the set of CSI-RS resources, and may receive the CSI-RS resources or the set of CSI-RS resources; and if the CSI-RS resources or the resource sets are not transmitted, the UE considers that the CSI-RS resources or the resource sets are not transmitted by the network side equipment and does not receive the CSI-RS resources or the resource sets.
In a specific embodiment, whether the network side device transmits the CSI-RS includes at least one of:
whether a CSI-RS configured by the network side equipment is transmitted or not, the network side equipment can configure a CSI-RS resource (resource) or a set (set), whether the CSI-RS resource or the set is transmitted or not is indicated through first information, the first information can occupy 1 bit, when the first information is 1, the CSI-RS resource is indicated to be transmitted, and when the first information is 0, the CSI-RS resource is indicated not to be transmitted;
whether each CSI-RS in the M CSI-RSs configured by the network side device is transmitted, where M is a positive integer, the network side device may configure M CSI-RS resources (or sets), and indicate, through the first information, whether each CSI-RS resource (or set) in the M CSI-RS resources (or sets) is transmitted, for example, the first information includes M bits, where the mth bit is used to indicate whether the mth CSI-RS resource is transmitted, where M is greater than or equal to 1 and less than or equal to M. Specifically, when the mth bit is 0, the mth CSI-RS resource or the mth CSI-RS set may be indicated not to be transmitted, and when the mth bit is 1, the mth CSI-RS resource or the mth CSI-RS set may be indicated to be transmitted;
whether the CSI-RS in each of P CSI-RS sets configured by the network side device is transmitted or not, where P is a positive integer, the network side device may configure M CSI-RS resources (or sets), where the M resources (or sets) are divided into P sets, and each set includes at least one resource (or set). Whether the CSI-RS resource (or set) in each of the P sets is transmitted is indicated by the first information, for example, the first information includes P bits, where the P-th bit is used to indicate whether the P-th CSI-RS resource set is transmitted, where P is greater than or equal to 1 and less than or equal to P. Specifically, when the p-th bit is 0, the p-th CSI-RS resource set is indicated not to be transmitted, and when the p-th bit is 1, the p-th CSI-RS resource set is indicated to be transmitted;
and whether all the CSI-RS configured by the network side equipment are transmitted or not can be indicated by the network side equipment through the bit or code point in the first information, and whether all the configured CSI-RS resources are transmitted or not can be indicated by the network side equipment. Or whether configuration information of all CSI-RSs is valid.
The UE can receive the CSI-RSs if receiving the indication of the DCI and indicating that the CSI-RSs are transmitted by the network side equipment, and otherwise, does not receive the CSI-RSs or assumes that the CSI-RSs are not transmitted.
In addition, the first information may also indicate an effective time when the CSI-RS configuration information or whether the CSI-RS transmits information. In some embodiments, the terminal determines whether the CSI-RS is transmitted according to the received first information at a second time position after the first time position, where the first time position is located in a current modification period in which the terminal receives the first information, and the second time position is located in a next modification period of the current modification period or is separated from the first time position by a preset time length. If the change cycle is X ms, the UE receives first information indicating whether the CSI-RS resource or the CSI-RS resource set or the CSI-RS resource group or the CSI-RS resource set group is transmitted or not in the X ms, and the first information is effective after T time, or the indication information is effective in the next change cycle, namely whether the CSI-RS is transmitted or not is determined according to the currently received first information in the next change cycle, or one discontinuous reception cycle (DRX cycle) or a plurality of DRX cycles after the first information is received are effective.
In some embodiments, if the first information indicates that the CSI-RS configuration information is changed, the CSI-RS configuration may still be obtained through system information change, that is, if the first information indicates that the CSI-RS configuration information is updated, the method further includes: system information including a CSI-RS configuration is received. The network side equipment indicates the change of the information of the CSI-RS configuration through the first information, and after the UE receives the first indication indicating the change of the CSI-RS configuration information, the UE receives the system information for transmitting the CSI-RS configuration, for example, the CSI-RS configuration information is transmitted in the sib x, and after the UE receives the first information, the UE receives the sib x to acquire the configuration information of the CSI-RS.
After the UE receives the CSI-RS resources configured by the network side device and/or the CSI-RS resources indicated by the first information, the UE may receive the CSI-RS and perform RRM measurement, AGC, synchronization, and the like based on the CSI-RS.
The UE detects whether the CSI-RSs are actually sent or not, if the first information and/or the system information indicates that the network side equipment configures Nmax CSI-RSs, the terminal does not detect N CSI-RSs, Nmax is a positive integer, N is greater than or equal to 1 and less than or equal to Nmax, and the terminal performs at least one of the following operations:
assuming that all CSI-RSs configured by the network side device are not transmitted, that is, it is expected or considered that all CSI-RSs indicated by the network side device (indicated by the system information and/or the first information) are not transmitted;
not receiving all CSI-RSs configured by the network side equipment (configured by system information and/or first information), including not using the CSI-RSs for RRM measurement and the like;
performing Radio Resource Management (RRM) measurement by using a Synchronization Signal Block (SSB);
cell search and/or cell reselection is performed.
In some embodiments, if the first information and/or the system information indicates that the network side device configures Nmax CSI-RSs, the method further includes:
measuring the Nmax CSI-RSs, and if the measured value is lower than a preset threshold, the terminal performs at least one of the following operations:
assuming that all CSI-RSs configured by the network side device are not transmitted, that is, it is expected or considered that all CSI-RSs indicated by the network side device (indicated by the system information and/or the first information) are not transmitted;
not receiving all CSI-RSs configured by the network side equipment (configured by system information and/or first information), including not using the CSI-RSs for RRM measurement and the like;
performing Radio Resource Management (RRM) measurement by using a Synchronization Signal Block (SSB);
cell search and/or cell reselection is performed.
Wherein the measured value is obtained by using any one of the following quality parameter values:
reference signal received power, RSRP;
reference signal received quality, RSRQ;
signal to interference plus noise ratio, SINR;
a received signal strength indication, RSSI;
the result obtained by one measurement can be adopted, or the result obtained by multiple measurements can be used for calculation, and when the measured value is obtained by calculation according to the result obtained by multiple measurements, the measured value can be obtained by calculation in a manner of weighted summation or averaging of the results obtained by multiple measurements.
The preset threshold may be configured for the network side device, for example, configured through system information, or may be agreed by a protocol.
An embodiment of the present application provides a method for transmitting CSI-RS configuration information, as shown in fig. 3, the method includes:
step 201: the method comprises the following steps that network side equipment sends first information through a first Physical Downlink Shared Channel (PDSCH), wherein the first information comprises at least one of the following items:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In the embodiment of the application, the terminal receives the first information through the physical downlink shared channel, that is, the CSI-RS related information is received through the physical downlink shared channel, and the network side device does not need to notify the terminal of the CSI-RS related information in a system message change manner, so that even if the terminal is in an idle state, the network side device can indicate the CSI-RS related information to the terminal through the physical downlink shared channel, and support the terminal in the idle state to receive the CSI-RS configuration information or change the configuration information.
In some embodiments, the method further comprises:
transmitting indication information through the first PDCCH, the indication information comprising at least one of:
the first sub-indication information is used for indicating whether the network side equipment sends the first information or not;
second sub-indication information for indicating whether the indication information includes scheduling information.
Wherein the scheduling information may include at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In this embodiment, whether the terminal receives the first information may be explicitly or implicitly indicated by the indication information.
When explicitly indicating whether a terminal receives first information, it may be indicated whether the terminal receives the first information through first sub-indication information.
In the DCI format of the existing paging PDCCH, there are some unused bits, so the unused bits in the DCI of the paging PDCCH may be used to indicate whether the UE receives the first information, such as whether to receive an update of the CSI-RS configuration information. In a specific example, 1 bit in DCI of a paging PDCCH may be used to instruct a UE to update CSI-RS configuration information, for example, when the bit is 1, the UE is instructed to update CSI-RS configuration information, and then the UE receives first information in a PDSCH scheduled by the PDCCH, that is, a first PDSCH; when the bit is 0, the UE is instructed not to update the CSI-RS configuration information, and the UE does not attempt to receive the first information in the first PDSCH any more. The bit is used as the first sub-indication information, and the first sub-indication information is not limited to occupy 1 bit, and may occupy more bits.
In a specific embodiment, the first sub-indication information may be indicated by a bit in a short message field in downlink control information DCI transmitted by the first PDCCH. Of course, the first sub-indication information may also be indicated by bits not occupied by other fields in the DCI. And if the DCI contains bits indicating that the UE needs to receive the first information, the UE acquires the first information in the first PDSCH.
When implicitly indicating whether a terminal receives first information, whether the terminal receives the first information may be indicated by second sub-indication information.
When the second sub-indication information indicates that the indication information comprises scheduling information, the terminal is implicitly indicated to receive the first information; when the second sub-indication information indicates that the indication information does not include the scheduling information, the terminal is implicitly indicated not to attempt to receive the first information. Therefore, whether the terminal receives the first information or not does not need to be indicated by special information, and signaling overhead can be saved.
The indication information may specifically be DCI of a paging PDCCH, and if the DCI of the paging PDCCH includes scheduling information, the UE attempts to acquire the first information in the scheduled PDSCH, and after receiving the first PDSCH, the UE needs to perform parsing to determine whether the first PDSCH transmits the first information, and if so, the UE acquires the first information. If the DCI of the paging PDCCH does not contain scheduling information, the UE does not attempt to acquire the first information in the scheduled PDSCH.
In this embodiment, the PDSCH indicated by the scheduling information transmits at least one of the following: first information; a paging message. That is, the first information may be transmitted in the same PDSCH as the paging message of the UE, and when no UE is paged, the PDSCH may transmit only the first information; or, when the network side device does not send the first information, the PDSCH may transmit only the paging message, that is, the scheduled PDSCH of the DCI of the paging PDCCH may only contain the paging message without the first information. Of course, the first information may also be transmitted in a different PDSCH from the paging message.
In some embodiments, the second sub-indication information may indicate a bit indication in a short message indicator field in DCI transmitted by the first PDCCH, and of course, the second sub-indication information may also indicate a bit in other fields in the DCI.
In the related art, when the short message indicator of the DCI is 'x, 1', the DCI is instructed to include the scheduling information of the paging message, so in this embodiment, when the short message indicator of the DCI is 'x, 1' (x is 0 or 1), the UE may be instructed to further receive the first PDSCH and analyze whether the first PDSCH includes the first information, and if the first PDSCH includes the first information, the UE acquires the first information. That is, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH. Further, if the DCI includes a bit indicating that the first information needs to be received, the UE needs to acquire the paging message and the first information in the first PDSCH. Otherwise, the UE acquires the paging message only in the first PDSCH.
In some embodiments, a specific code point (codepoint), i.e., a bit state combination, may be used in the paging DCI to indicate whether to receive the first information. And when the UE detects the preset code point in the DCI, receiving the first information. For example, a short message indicator is used for indicating, and if a bit in the short message indicator field is a preset code point, the terminal acquires the first information from the first PDSCH.
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information of the first PDSCH, the scheduling information is used for receiving the first PDSCH, and when the preset code point indicates that the first PDCCH includes the scheduling information of the first PDSCH, the UE receives the first information, that is, the preset code point implicitly indicates the UE to acquire the first information. In a specific example, the predetermined code point may be 0, 0.
In some embodiments, the preset code point may also indicate that the first PDSCH only includes the first information, i.e., the preset code point explicitly indicates the UE to acquire the first information.
In a specific example, a bit in a short message indicator field in the paging DCI may be used to indicate that the PDCCH includes neither a short message nor a paging message (i.e., does not include scheduling information of paging), and in this case, a code point in the short message indicator field may be '0, 0'. Further, the UE may also be indicated to receive the first information by using a code point '0, 0', that is, when the code point in the short message indicator field is '0, 0', the PDCCH is indicated to include scheduling information, and the scheduling information is used for receiving the first PDSCH. At this time, since the code point '0, 0' indicates that the PDCCH does not include the short message and does not indicate the reception of the paging message, only the first information is included in the scheduled PDSCH.
In some embodiments, the method further comprises:
and sending a wake-up signal of a paging message, wherein the wake-up signal is used for indicating whether the terminal receives the first information.
That is, for the reception of paging, a wake-up signal is introduced, which is used to indicate whether the UE needs to perform the reception of the paging PDCCH and/or the paging PDSCH in the next a (a > -1) paging frames PF or paging occasions PO.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
If the wake-up signal is a control channel, an indication information bit may be included in the control channel to indicate whether the UE receives the first information. If the wake-up signal is a sequence, the generation of the sequence is related to the indication of whether the UE receives the first information, that is, different sequences may be used to indicate whether the UE needs to receive the first information, and the UE determines whether to receive the first information according to the detected sequence.
Since the wake-up signal may also indicate at least one of the following information: indicating whether UE of a preset group is paged or not and whether a first PDCCH contains a short message or not; after the UE detects the wake-up signal, the UE may execute the above one behavior according to the received control information or sequence, or execute a combination of multiple behaviors. For example, a sequence or control information indicates that a UE of a UE group receives a paging message and receives first information, then the UE of the UE group receives the sequence and then receives the paging message and the first information at the same time. If the wake-up signal is a sequence, the generation of the sequence is associated with the plurality of information.
In this embodiment, a network side device configures a set B of CSI-RS resources or a set of CSI-RS resources through system information, where B is a positive integer, and indicates whether the CSI-RS resources or the set of CSI-RS resources are transmitted through first information, and if the CSI-RS resources or the set of CSI-RS resources are indicated to be transmitted, the UE considers that the network side device transmits the CSI-RS resources or the set of CSI-RS resources, and may receive the CSI-RS resources or the set of CSI-RS resources; and if the CSI-RS resources or the resource sets are not transmitted, the UE considers that the CSI-RS resources or the resource sets are not transmitted by the network side equipment and does not receive the CSI-RS resources or the resource sets.
In a specific embodiment, whether the network side device transmits the CSI-RS includes at least one of:
whether a CSI-RS configured by the network side equipment is transmitted or not, the network side equipment can configure a CSI-RS resource (resource) or a set (set), whether the CSI-RS resource or the set is transmitted or not is indicated through first information, the first information can occupy 1 bit, when the first information is 1, the CSI-RS resource is indicated to be transmitted, and when the first information is 0, the CSI-RS resource is indicated not to be transmitted;
whether each CSI-RS in the M CSI-RSs configured by the network side device is transmitted, where M is a positive integer, the network side device may configure M CSI-RS resources (or sets), and indicate, through the first information, whether each CSI-RS resource (or set) in the M CSI-RS resources (or sets) is transmitted, for example, the first information includes M bits, where the mth bit is used to indicate whether the mth CSI-RS resource is transmitted, where M is greater than or equal to 1 and less than or equal to M. Specifically, when the mth bit is 0, the mth CSI-RS resource or the mth CSI-RS set may be indicated not to be transmitted, and when the mth bit is 1, the mth CSI-RS resource or the mth CSI-RS set may be indicated to be transmitted;
whether the CSI-RS in each of P CSI-RS sets configured by the network side device is transmitted or not, where P is a positive integer, the network side device may configure M CSI-RS resources (or sets), where the M resources (or sets) are divided into P sets, and each set includes at least one resource (or set). Whether the CSI-RS resource (or set) in each of the P sets is transmitted is indicated by the first information, for example, the first information includes P bits, where the P-th bit is used to indicate whether the P-th CSI-RS resource set is transmitted, where P is greater than or equal to 1 and less than or equal to P. Specifically, when the p-th bit is 0, the p-th CSI-RS resource set is indicated not to be transmitted, and when the p-th bit is 1, the p-th CSI-RS resource set is indicated to be transmitted;
and whether all the CSI-RS configured by the network side equipment are transmitted or not can be indicated by the network side equipment through the bit or code point in the first information, and whether all the configured CSI-RS resources are transmitted or not can be indicated by the network side equipment. Or whether configuration information of all CSI-RSs is valid.
The UE can receive the CSI-RSs if receiving the indication of the DCI and indicating that the CSI-RSs are transmitted by the network side equipment, and otherwise, does not receive the CSI-RSs or assumes that the CSI-RSs are not transmitted.
In some embodiments, if the first information indicates that the CSI-RS configuration information is changed, the changed CSI-RS configuration may still be indicated by the system information, that is, if the first information indicates that the CSI-RS configuration information is updated, the method further includes: transmitting system information including a CSI-RS configuration.
It should be noted that, in the transmission method of CSI-RS configuration information provided in the embodiment of the present application, the execution main body may be a transmission apparatus of CSI-RS configuration information, or a module in the transmission apparatus of CSI-RS configuration information, which is used for executing the transmission method for loading CSI-RS configuration information. In the embodiment of the present application, a transmission method for loading CSI-RS configuration information performed by a transmission apparatus for CSI-RS configuration information is taken as an example, and the transmission method for CSI-RS configuration information provided in the embodiment of the present application is described.
The CSI-RS configuration information transmission apparatus according to the embodiment of the present application is applied to a terminal 300, and as shown in fig. 4, the apparatus includes:
an obtainingmodule 310, configured to receive first information through a first physical downlink shared channel PDSCH, where the first information includes at least one of the following:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In the embodiment of the application, the terminal receives the first information through the physical downlink shared channel, that is, the CSI-RS related information is received through the physical downlink shared channel, and the network side device does not need to notify the terminal of the CSI-RS related information in a system message change manner, so that even if the terminal is in an idle state, the network side device can indicate the CSI-RS related information to the terminal through the physical downlink shared channel, and support the terminal in the idle state to receive the CSI-RS configuration information or change the configuration information.
In some embodiments, the obtaining module is specifically configured to receive indication information through the first PDCCH, and receive the first information according to the indication information, where the indication information includes at least one of the following:
first sub-indication information for indicating whether the terminal receives the first information;
second sub-indication information for indicating whether the indication information includes scheduling information.
In some embodiments, the scheduling information comprises at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In some embodiments, the PDSCH indicated by the scheduling information transmits at least one of:
first information;
a paging message.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the first sub-indication information indicates that the terminal receives the first information.
In some embodiments, the first sub-indication information is indicated by a bit in a short message field in the downlink control information DCI transmitted through the first PDCCH.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the second sub-indication information indicates that the indication information includes the scheduling information.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if the second sub-indication information indicates that the indication information includes scheduling information of a paging message; if the second sub-indication information indicates that the indication information does not include scheduling information of a paging message, the first information is not acquired from the first PDSCH.
In some embodiments, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH.
In some embodiments, the obtaining module is specifically configured to obtain the first information from the first PDSCH if a bit in the short message indicator field is a preset code point
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information for the first PDSCH.
In some embodiments, the predetermined code point is 0, 0.
In some embodiments, the preset code point indicates that the first PDSCH includes only the first information.
In some embodiments, the obtaining module is specifically configured to receive a wake-up signal of a paging message, and receive the first information according to the wake-up signal, where the wake-up signal is used to indicate whether the terminal receives the first information.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
Since the wake-up signal may also indicate at least one of the following information: indicating whether UE of a preset group is paged or not and whether a first PDCCH contains a short message or not; after the UE detects the wake-up signal, the UE may execute the above one behavior according to the received control information or sequence, or execute a combination of multiple behaviors. For example, a sequence or control information indicates that a UE of a UE group receives a paging message and receives first information, then the UE of the UE group receives the sequence and then receives the paging message and the first information at the same time. If the wake-up signal is a sequence, the generation of the sequence is associated with the plurality of information.
In some embodiments, if the wake-up signal indicates that the terminal receives the first information, the apparatus further includes:
a first receiving module, configured to receive the first PDCCH and/or the first PDSCH in a subsequent paging frames PF or paging opportunities PO, and acquire the first information, where a is a positive integer.
In some embodiments, whether the network side device transmits CSI-RS includes at least one of:
whether one CSI-RS configured by the network side equipment is transmitted or not;
whether each CSI-RS in M CSI-RSs configured by the network side equipment is transmitted or not, wherein M is a positive integer;
whether each set CSI-RS in P CSI-RS sets configured by the network side equipment transmits or not is judged, and P is a positive integer;
whether all CSI-RSs configured by the network side equipment are transmitted or not.
In some embodiments, the obtaining module is further configured to determine, according to the received first information, whether the CSI-RS is transmitted at a second time position after the first time position, where the first time position is located in a current change cycle of the terminal receiving the first information, and the second time position is located in a next change cycle of the current change cycle or is separated from the first time position by a preset time length.
In some embodiments, if the first information indicates CSI-RS configuration information update, the apparatus further includes:
a second receiving module for receiving system information including a CSI-RS configuration.
In some embodiments, if the first information and/or the system information indicates that the network-side device configures Nmax CSI-RSs, the terminal does not detect N CSI-RSs therein, where Nmax is a positive integer, and N is a positive integer smaller than or equal to Nmax, the apparatus further includes a first processing module, configured to perform at least one of the following operations:
assuming that all CSI-RSs configured by the network side equipment are not transmitted;
not receiving all CSI-RSs configured by the network side equipment;
performing Radio Resource Management (RRM) measurement by using a Synchronization Signal Block (SSB);
cell search and/or cell reselection is performed.
In some embodiments, if the first information and/or the system information indicates that the network-side device configures Nmax CSI-RSs, the apparatus further includes a second processing module, configured to measure the Nmax CSI-RSs, and if a measured value is lower than a preset threshold, perform at least one of the following operations:
assuming that all CSI-RSs configured by the network side equipment are not transmitted;
not receiving all CSI-RSs configured by the network side equipment;
performing Radio Resource Management (RRM) measurement by using a Synchronization Signal Block (SSB);
cell search and/or cell reselection is performed.
In some embodiments, the measurement is obtained using any one of the following quality parameter values:
reference signal received power, RSRP;
reference signal received quality, RSRQ;
signal to interference plus noise ratio, SINR;
a received signal strength indication, RSSI;
the result obtained by one measurement can be adopted, or the result obtained by multiple measurements can be used for calculation, and when the measured value is obtained by calculation according to the result obtained by multiple measurements, the measured value can be obtained by calculation in a manner of weighted summation or averaging of the results obtained by multiple measurements.
In some embodiments, the preset threshold is a network side device configuration or a protocol convention.
An embodiment of the present application provides a CSI-RS configuration information transmission apparatus, which is applied to anetwork side device 400, and as shown in fig. 5, the apparatus includes:
a sendingmodule 410, configured to send first information through a first physical downlink shared channel PDSCH, where the first information includes at least one of the following:
whether the network side equipment transmits CSI-RS or not;
CSI-RS configuration information;
whether CSI-RS configuration information is updated;
the first PDSCH is a PDSCH scheduled by a first Physical Downlink Control Channel (PDCCH), and the first PDCCH is a paging PDCCH.
In the embodiment of the application, the terminal receives the first information through the physical downlink shared channel, that is, the CSI-RS related information is received through the physical downlink shared channel, and the network side device does not need to notify the terminal of the CSI-RS related information in a system message change manner, so that even if the terminal is in an idle state, the network side device can indicate the CSI-RS related information to the terminal through the physical downlink shared channel, and support the terminal in the idle state to receive the CSI-RS configuration information or change the configuration information.
In some embodiments, the transmitting module is further configured to transmit indication information through the first PDCCH, the indication information including at least one of:
the first sub-indication information is used for indicating whether the network side equipment sends the first information or not;
second sub-indication information for indicating whether the indication information includes scheduling information.
In some embodiments, the scheduling information comprises at least one of:
scheduling information of the paging message;
scheduling information of the first information.
In some embodiments, the PDSCH indicated by the scheduling information transmits at least one of:
first information;
a paging message.
In some embodiments, the first sub-indication information is indicated by a bit in a short message field in the downlink control information DCI transmitted through the first PDCCH.
In some embodiments, the second sub-indication information indicates a bit indication in a short message indicator field in DCI transmitted through the first PDCCH.
In some embodiments, if a bit in the short message indicator field is a preset code point, the terminal is instructed to acquire the first information from the first PDSCH
In some embodiments, the preset code point indicates that the first PDCCH includes scheduling information for the first PDSCH.
In some embodiments, the predetermined code point is 0, 0.
In some embodiments, the preset code point indicates that the first PDSCH includes only the first information.
In some embodiments, the sending module is further configured to send a wake-up signal of a paging message, where the wake-up signal is used to indicate whether the terminal receives the first information.
In some embodiments, the wake-up signal comprises at least one of:
a control channel including an indication information bit to indicate whether the terminal receives the first information;
a sequence to indicate whether the terminal receives the first information.
Since the wake-up signal may also indicate at least one of the following information: indicating whether UE of a preset group is paged or not and whether a first PDCCH contains a short message or not; after the UE detects the wake-up signal, the UE may execute the above one behavior according to the received control information or sequence, or execute a combination of multiple behaviors. For example, a sequence or control information indicates that a UE of a UE group receives a paging message and receives first information, then the UE of the UE group receives the sequence and then receives the paging message and the first information at the same time. If the wake-up signal is a sequence, the generation of the sequence is associated with the plurality of information.
In some embodiments, whether the network side device transmits CSI-RS includes at least one of:
whether one CSI-RS configured by the network side equipment is transmitted or not;
whether each CSI-RS in M CSI-RSs configured by the network side equipment is transmitted or not, wherein M is a positive integer;
whether each set CSI-RS in P CSI-RS sets configured by the network side equipment transmits or not is judged, and P is a positive integer;
whether all CSI-RSs configured by the network side equipment are transmitted or not.
In some embodiments, the sending module is further configured to send system information including CSI-RS configuration if the first information indicates CSI-RS configuration information update.
The embodiment of the present application further provides an electronic device, which includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, where the program or the instruction, when executed by the processor, implements each process of the above-mentioned embodiment of the CSI-RS configuration information transmission method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
The electronic device of the embodiment may be a terminal. Fig. 6 is a schematic hardware structure diagram of a terminal for implementing various embodiments of the present application, where the terminal 50 includes, but is not limited to: aradio frequency unit 51, anetwork module 52, anaudio output unit 53, aninput unit 54, asensor 55, adisplay unit 56, auser input unit 57, aninterface unit 58, amemory 59, aprocessor 510, and apower supply 511. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present application, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
It should be understood that, in the embodiment of the present application, theradio frequency unit 51 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to theprocessor 510; in addition, the uplink data is transmitted to the base station. Typically, theradio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, theradio frequency unit 51 may also communicate with a network and other devices through a wireless communication system.
Thememory 59 may be used to store software programs as well as various data. Thememory 59 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, thememory 59 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
Theprocessor 510 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in thememory 59 and calling data stored in thememory 59, thereby performing overall monitoring of the terminal.Processor 510 may include one or more processing units; preferably, theprocessor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated intoprocessor 510.
The terminal 50 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, thepower supply 511 may be logically connected to theprocessor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the terminal 50 includes some functional modules that are not shown, and will not be described in detail herein.
The electronic device of this embodiment may also be a network side device. As shown in fig. 7, the network-side device 600 includes:antenna 61,radio frequency device 62,baseband device 63. Theantenna 61 is connected to aradio frequency device 62. In the uplink direction, therf device 62 receives information via theantenna 61 and sends the received information to thebaseband device 63 for processing. In the downlink direction, thebaseband device 63 processes information to be transmitted and transmits the information to theradio frequency device 62, and theradio frequency device 62 processes the received information and transmits the processed information through theantenna 61.
The above-mentioned band processing means may be located in the baseband means 63, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 63, where the baseband means 63 includes aprocessor 64 and amemory 65.
Thebaseband device 63 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 7, wherein one chip, for example, theprocessor 64, is connected to thememory 65 to call up the program in thememory 65 to perform the network side device operation shown in the above method embodiment.
Thebaseband device 63 may further include anetwork interface 66 for exchanging information with theradio frequency device 62, such as a Common Public Radio Interface (CPRI).
The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the method performed by the above network-side device, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.
Thememory 65 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced synchronous dynamic random access memory (EnhancedSDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct memory bus random access memory (DRRAM). Thememory 65 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing CSI-RS configuration information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the embodiment of the CSI-RS configuration information transmission method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (42)
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