CN111835479B

Movatterモバイル変換

Info

Publication number: CN111835479B
Application number: CN201910590725.3A
Authority: CN
Inventors: 李娜; 鲁智; 沈晓冬
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2021-09-24
Anticipated expiration: 2039-07-02
Also published as: CN111835479A; WO2021000774A1

Abstract

Translated fromChinese

本发明提供了一种信息传输、接收方法、终端及网络侧设备，涉及通信技术领域。信息传输方法，应用于终端，包括：通过物理上行共享信道PUSCH，发送调度请求SR。上述方案，通过PUSCH，发送SR，以保证当有SR传输需求时，终端能够及时进行SR的传输，降低了SR传输时延。

The invention provides an information transmission and reception method, a terminal and a network side device, and relates to the technical field of communication. An information transmission method, applied to a terminal, includes: sending a scheduling request SR through a physical uplink shared channel PUSCH. In the above solution, the SR is sent through the PUSCH to ensure that the terminal can transmit the SR in time when there is a demand for SR transmission, thereby reducing the SR transmission delay.

Description

Information transmission and receiving method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, an information reception method, a terminal, and a network device.

Background

When a User Equipment (UE, also called a terminal) supports only one service type, the UE may send a Scheduling Request (SR) to Request a base station to allocate Uplink transmission resources to the UE only when there is no Uplink Shared Channel (UL-SCH) resource, and when the UE has the UL-SCH resource, the UE may send a Buffer Status Report (BSR) through a Physical Uplink Shared Channel (PUSCH) to Request resources for new data arrival. There is no SR and PUSCH with UL-SCH collision (transmission time overlap). In a New Radio (NR) system, the PUSCH may have different Orthogonal Frequency Division Multiplexing (OFDM) symbol lengths (2-14 OFDM symbols), the Physical Uplink Control CHannel (PUCCH) for transmitting the SR may be a short PUCCH (1/2 OFDM symbol length) or a long PUCCH (4-14 OFDM symbol length), and the period of the SR may be as small as 2 symbols and as large as 1 to multiple slots.

When the UE supports different service types simultaneously, and the delay and reliability requirements corresponding to different services are different (e.g., mobile broadband enhanced (eMBB) and ultra-high-reliability ultra-low delay communications (URLLC)), the UE may have UL-SCH resources of one service (e.g., eMBB) and another service data arrives (e.g., URLLC), and due to the requirement of low delay, transmission of BSR on PUSCH may increase delay, or due to long processing time of BSR (several tens to several hundreds of bits of BSR, maximum 4 bits of SR) may not reach transmission on PUSCH, so it may be considered to transmit SR to request uplink transmission resources of another service. However, if the PUSCH is completely dropped and only the SR is transmitted, it may cause a decrease in uplink throughput. In addition, when a Medium Access Control (MAC) layer notifies a physical layer that an SR is to be sent, a PUSCH may already start transmission, and therefore how to implement transmission of the SR becomes an urgent issue to be solved.

Disclosure of Invention

Embodiments of the present invention provide an information transmission and reception method, a terminal, and a network side device, so as to solve the problem of how to perform data transmission to ensure communication reliability when there are PUSCH and SR transmission requirements at the same time.

In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a terminal, including:

and sending a scheduling request SR through a physical uplink shared channel PUSCH.

In a second aspect, an embodiment of the present invention provides an information receiving method, applied to a network side device, including:

and receiving a scheduling request SR through a physical uplink shared channel PUSCH.

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

and the sending module is used for sending the scheduling request SR through a physical uplink shared channel PUSCH.

In a fourth aspect, an embodiment of the present invention provides a terminal, where the terminal includes: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the information transmission method described above.

In a fifth aspect, an embodiment of the present invention provides a network side device, including:

and the receiving module is used for receiving the scheduling request SR through a physical uplink shared channel PUSCH.

In a sixth aspect, an embodiment of the present invention provides a network-side device, where the network-side device includes: a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the above-mentioned information receiving method.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores thereon a computer program, and the computer program, when executed by a processor, implements the steps of the above-mentioned information transmission method or the steps of the above-mentioned information reception method.

The invention has the beneficial effects that:

according to the scheme, the SR is sent through the PUSCH, so that the terminal can timely transmit the SR when the SR transmission requirement exists, and the SR transmission delay is reduced.

Drawings

Fig. 1 is a schematic flow chart of an information transmission method according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a specific distribution of REs occupied by an SR;

FIG. 3 is a second schematic diagram illustrating the distribution of REs occupied by SR;

FIG. 4 is a third schematic diagram illustrating the distribution of REs occupied by SR;

FIG. 5 shows a fourth exemplary distribution of REs occupied by SR;

fig. 6 shows one of the time domain position diagrams of the start of PUSCH transmission SR;

fig. 7 shows a second time domain position diagram of the start of PUSCH transmission SR;

FIG. 8 shows a fifth exemplary distribution of REs occupied by SR;

FIG. 9 shows a sixth exemplary distribution of REs occupied by SR;

fig. 10 shows a schematic PRB distribution for SR transmission on PUSCH;

fig. 11 is a flowchart illustrating an information receiving method according to an embodiment of the present invention;

fig. 12 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 13 is a block diagram showing the configuration of a terminal according to an embodiment of the present invention;

fig. 14 is a block diagram of a network device according to an embodiment of the present invention;

fig. 15 is a block diagram showing a configuration of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In describing the embodiments of the present invention, a description will first be given of a conventional technique related to the embodiments of the present invention as follows.

Future fifth Generation (5 Generation, 5G) mobile communication systems need to accommodate more diverse scenarios and service demands than previous mobile communication systems. Main scenes of a New Radio (NR) include mobile broadband enhancement (eMBB), large-scale internet of things (mtc), and ultra-high-reliability ultra-low-latency communication (URLLC), and these scenes impose requirements on a system such as high reliability, low latency, large bandwidth, and wide coverage.

1. Uplink Scheduling Request (Scheduling Request, SR)

If User Equipment (UE, also called terminal) does not have uplink data to transmit, the base station does not need to allocate uplink resources to the UE, otherwise, the resources are wasted. Therefore, the UE needs to tell the base station whether there is uplink data to transmit, so that the base station can decide whether to allocate uplink resources to the UE.

The UE tells the base station whether uplink resources are needed for uplink shared channel (UL-SCH) transmission through the SR, but does not tell the base station how much uplink data needs to be sent (this is reported through a Buffer Status Report (BSR)). After receiving the SR, the base station allocates how many uplink resources to the UE depends on the implementation of the base station, and it is a common practice to allocate at least enough resources for the UE to send a BSR. The UE needs to tell the base station through the BSR how much data in its uplink buffer needs to be sent, so that the base station can determine how much uplink resources to allocate to the UE.

The base station does not know when the UE needs to transmit uplink data, i.e., when the UE will transmit the SR. Therefore, the base station needs to detect whether there is an SR report on the allocated SR resources. The SR is transmitted on a Physical Uplink Control CHannel (PUCCH) resource, and the PUCCH resource transmitting the SR is transmitted through an Information Element (IE): configured in an uplink scheduling request resource identifier (schedulingRequestResourceId) field of an uplink scheduling request resource configuration (schedulingRequestResourceConfig). The resource of the SR is configured periodically, and different periods represent different time delay requirements. One UE may configure multiple SRs and through IE: the uplink scheduling request resource id (scheduling request id) identifies that different SRs correspond to different logical channels (priority of data).

2. Physical Uplink Shared Channel (PUSCH)

The PUSCH may be used to carry the UL-SCH and Uplink Control Information (UCI). When the method is used for bearing the UL-SCH, namely the PUSCH with the UL-SCH, the UE sends uplink data through the PUSCH, at this time, the UE already has uplink resources to send the data, so the UE does not need to send the SR, at this time, if the PUSCH collides with the PUCCH, the PUCCH is the PUCCH bearing Hybrid Automatic Repeat Request (HARQ-ACK)/Channel State Information (CSI), and the UE multiplexes the data, the HARQ-ACK and the CSI on the PUSCH for transmission. The PUSCH may also be used only for carrying aperiodic CSI (a-CSI)/semi-persistent CSI (SP-CSI), that is, PUSCH without UL-SCH, that is, when the base station allocates a PUSCH resource, the resource is indicated to be used only for transmitting CSI information, and is not used for transmitting UL-SCH, since the PUSCH at this time is not used for transmission of traffic data, when the PUSCH without UL-SCH collides with SR, the UE will discard the PUSCH and transmit SR on the PUCCH resource corresponding to SR.

The invention provides an information transmission and receiving method, a terminal and network side equipment, aiming at the problem of how to transmit data to ensure the reliability of communication when the PUSCH and SR transmission requirements exist at the same time.

As shown in fig. 1, an embodiment of the present invention provides an information transmission method, which is applied to a terminal, and includes:

step 101, a scheduling request SR is sent through a physical uplink shared channel PUSCH.

Note that, the method of transmitting the SR via the PUSCH is: the SR is transmitted in a punching mode on the PUSCH, and the SR is transmitted in the punching mode, so that the reliable transmission of the SR is ensured, and the influence on the PUSCH transmission can be reduced.

In general, when the SR with the first priority collides with the PUSCH time domain resource with the second priority (that is, there are both PUSCH with the second priority and SR transmission requirements with the first priority), the SR with the first priority is transmitted on the PUSCH in a puncturing manner, specifically, the first priority is higher than the second priority, that is, when the SR with the high priority collides with the PUSCH time domain resource with the low priority, the SR is transmitted on the PUSCH in a puncturing manner.

The following describes a specific implementation process of the embodiment of the present invention from different puncturing manners.

Method one, puncturing in Resource Element (RE) units

In this case, the specific implementation manner ofstep 101 is:

determining the number of coded modulation symbols mapped by each layer of the SR in the PUSCH and the RE position mapped by the coded modulation symbols of each layer;

and sending the SR through the PUSCH according to the number of the coded modulation symbols mapped by each layer and the RE position mapped by the coded modulation symbols mapped by each layer.

It should be noted that one coded modulation symbol is mapped on one RE, that is, the number of coded modulation symbols mapped by the SR in each layer in the PUSCH refers to the number of REs occupied by the SR in the PUSCH.

Further, the determination method of the number of coded modulation symbols mapped by each layer specifically includes: and determining the number of coded modulation symbols mapped by the SR in each layer in the PUSCH according to the bit number and the offset of the SR and the number of REs capable of being used for transmitting the SR on the PUSCH.

It should be noted that the offset is determined by one of the following methods:

a11, configured by Radio Resource Control (RRC);

a12, indicated by Downlink Control Information (DCI);

a13, the offset is the same as the offset when a hybrid automatic repeat request acknowledgement (HARQ-ACK) is transmitted on a PUSCH;

in this case, the offset used for determining the number of coded modulation symbols mapped by each layer according to the protocol convention is the same as the offset when the HARQ-ACK is transmitted on the PUSCH, and further, the offset when the HARQ-ACK is transmitted on the PUSCH may be configured by RRC or indicated by DCI; it should be further noted that the HARQ-ACK mentioned in this case refers to a high priority HARQ-ACK.

For example, when Mbit SR (M ═ log2(k +1), where k denotes the number of SRs overlapping the PUSCH time domain resource, and in particular, k denotes k different SR configurations, if one SR configuration has multiple candidate positions overlapping the PUSCH time domain resource, and k is equal to 1), when transmitting on PUSCH, the number of REs occupied by SR, that is, the number of coded modulation symbols (Q ″) mapped per layer by SR in PUSCH is determined according to the number of bits of SR, the offset (betaoffset), and the RE resources available for PUSCH other than DMRS (that is, the number of REs available on PUSCH for transmitting SR), and the number of REs occupied by SR'_SR). Wherein, the beta offset is used to control the number of REs occupied by the SR when performing puncturing transmission on the PUSCH, the parameter may be RRC configuration or DCI indication, may be separate configuration or indication, or may be the same as the corresponding beta offset when HARQ-ACK is transmitted on the PUSCH, wherein if HARQ-ACK is classified into different types or priorities, the SR uses the beta offset corresponding to the HARQ-ACK with high priority or the beta offset with the largest value.

For example, the following formula can be used to determine the number of coded modulation symbols mapped by SR per layer in PUSCH with UL-SCH:

wherein, Q'_SRIs SR atThe number of coded modulation symbols mapped by each layer in the PUSCH; o is_SRA number of bits that is SR; l is_SRWhen the number of bits of the SR is less than or equal to 11 bits, L is the number of Cyclic Redundancy Check (CRC) bits corresponding to the SR_SR＝0；

Indicated by RRC configuration or DCI; c_UL-SCHNumber of code blocks (codes) of UL-SCH which is PUSCH transmission; k if DCI for scheduling PUSCH contains CBGTI indication field and indicates that r-th code block is not transmitted_rNot equal to 0, otherwise, K_rThe r-th code block size of UL-SCH on PUSCH is represented;

is the number of REs available for UCI transmission on OFDM symbol l in PUSCH transmission,

representing the total number of OFDM symbols contained in the CG-PUSCH transmission, including the symbols used for the DMRS; for OFDM symbols containing DMRS, if SR cannot be mapped on DMRS OFDM symbol, then

If SR can be mapped on DMRS OFDM symbol

For OFDM symbols that do not contain a DMRS,

l₀indicating an OFDM symbol index where CG-UCI starts mapping, namely an index of a first symbol without DMRS after the first DMRS;

represents the bandwidth of the PUSCH transmission, counted in subcarriers (subcarriers);

the subcarrier used for Phase tracking pilot signal (PTRS) in OFDM symbol l in PUSCH transmission.

Further, the determining manner of the RE position mapped by the coded modulation symbol of each layer is specifically as follows:

determining the RE position mapped by the code modulation symbol of each layer according to the SR mapping rule;

specifically, the mapping rule includes one of the following items:

b11, mapping the SR starting from the first position of the PUSCH;

specifically, the first position corresponds to a starting symbol position of a Physical Uplink Control Channel (PUCCH) where the SR is located;

it should be further noted that, this case is specifically implemented by one of the following:

b111, when the SR is mapped to a demodulation reference signal (DMRS) Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PUSCH, the SR is mapped on a first RE in the DMRS OFDM symbol, and the first RE is other REs except the RE occupied by the DMRS;

that is, in this case, the SR may be mapped on the DMRS OFDM symbol, but when the SR is mapped in the DMRS OFDM symbol, the SR cannot be mapped on the REs occupied by the DMRS, and only the REs not occupied by the DMRS can be selected for mapping.

B112, the SR is mapped to other OFDM symbols except the DMRS OFDM symbol;

note that in this case, the SR cannot be mapped onto the DMRS OFDM symbol.

B12, mapping the SR from the first available non-DMRS OFDM symbol after the first DMRS OFDM symbol of the PUSCH;

b121, the SR can be mapped on the RE occupied by the HARQ-ACK;

that is, in this case, when the SR performs mapping, it does not need to consider whether HARQ-ACK is already mapped on the PUSCH, and even if the HARQ-ACK is already mapped, the SR may occupy REs used by the HARQ-ACK.

B122, the SR cannot be mapped on the RE occupied by the HARQ-ACK;

that is, in this case, when the SR performs mapping, the mapping of HARQ-ACK needs to be considered, and if there is HARQ-ACK transmission on PUSCH, the SR may not occupy the REs used by HARQ-ACK.

For example, assuming that an M-bit SR is transmitted on a PUSCH, 15 modulation coding symbols, that is, 15 REs, are mapped to each layer, and when the SR cannot puncture PUSCH DMRS symbols and HARQ-ACK is not transmitted on the PUSCH, a specific distribution manner of REs occupied by the SR is as shown in fig. 2; when the SR cannot punch the PUSCH DMRS symbol and there is HARQ-ACK on the PUSCH, the HARQ-ACK starts mapping from the first available non-DMRS OFDM symbol after the first DMRS symbol and needs to occupy 16 REs, the SR cannot punch the REs where the HARQ-ACK is located, and the specific distribution manner of the REs occupied by the SR is shown in fig. 3; when the SR can puncture the PUSCH DMRS symbol and there is HARQ-ACK on the PUSCH, the HARQ-ACK starts mapping from the first available non-DMRS OFDM symbol after the first DMRS symbol and needs to occupy 16 REs, the SR can puncture the REs occupied by the HARQ-ACK, and the specific distribution manner of the REs occupied by the SR is shown in fig. 4; when the SR can puncture the PUSCH DMRS symbol and there is HARQ-ACK on the PUSCH, the HARQ-ACK starts mapping from the first available non-DMRS OFDM symbol after the first DMRS symbol and needs to occupy 16 REs, the SR may not puncture the REs where the HARQ-ACK is located, and the specific distribution manner of the REs occupied by the SR is shown in fig. 5.

Specifically, in fig. 2 to fig. 5, the diagonal boxes are REs occupied by DMRS, the grid boxes are REs occupied by SRs, the vertical boxes are REs occupied by HARQ-ACK, the blank boxes are REs occupied by UL-SCH, and the grid bold black boxes are REs occupied by HARQ-ACK.

It should be noted that, in the present invention, if Channel State Information (CSI) is mapped on the PUSCH, the SR may be mapped on an RE where the CSI is located.

It should be further noted that the mapping rule further includes one of the following items:

b21, if the number of REs available for SR transmission on the PUSCH is greater than the number of SR to-be-mapped coded modulation symbols on the first OFDM symbol, mapping the SR to-be-mapped coded modulation symbols on the PUSCH first OFDM symbol in a distributed mapping manner;

it should be noted that the first OFDM symbol refers to any one OFDM symbol.

B22, if the number of the mappable SR coding bits of the PUSCH is greater than the number of the SR to-be-mapped coding bits on the second OFDM symbol, mapping the SR to-be-mapped coding bits on the second OFDM symbol of the PUSCH in a distributed mapping manner;

note that the second OFDM symbol refers to any one OFDM symbol.

It should be noted that, the number of SR to-be-mapped coded bits in the implementation of B22 may be calculated from the number of SR to-be-mapped coded modulation symbols, specifically, the number of SR to-be-mapped coded bits is equal to the number of SR to-be-mapped coded modulation symbols × modulation order (Q)_m) X PUSCH number of transmission layers (N)_L) (ii) a It should be noted that B11 and B12 are two different implementation expressions, and are intended to be the same.

For example, if the number of usable REs of the PUSCH on a certain OFDM symbol is greater than the remaining number of REs that need to be punctured in the SR, the SR punctures PUSCH REs in a distributed manner. Specifically, if the SR has M remaining coded modulation symbols to be mapped, and N REs are available on PUSCH OFDM symbol l for SR transmission, the coded modulation symbol of the SR is mapped every d REs on REs available for SR transmission, where d ═ floor (N/M), e.g., the non-DMRS OFDM symbol that is first available after DMRS in fig. 2, RE bit 12 available for SR transmission, and SR requires 15 REs, where d ═ 1, i.e., each RE maps the coded modulation symbol of the SR, and on the following symbol, the SR still has 3 coded modulation symbols remaining, where 12 REs are available for SR transmission on PUSCH, and d ═ 4, e.g., on the first symbol of SR mapping in fig. 4, i.e., DMRS symbol, where 6 non-REs are available on the symbol, i.e., 6 REs can map SR, and where 15 coded modulation symbols need mapping, therefore, d is 1, there are still 9 coded modulation symbols left in the SR in the first OFDM symbol after the DMRS OFDM symbol, and since the SR can puncture the REs occupied by HARQ-ACK, at this time, 12 REs in the symbol on the PUSCH can be used for transmitting the SR, then d is 1.

Mode two, puncturing along with SR transmission format

In this case, the specific implementation manner ofstep 101 is:

according to the transmission format of the SR on the PUCCH, mapping the SR on the PUSCH; and transmitting the PUSCH mapped with the SR.

In this case, the SR is transmitted in a format for transmission on the PUCCH in a certain Physical Resource Block (PRB) allocated to the PUSCH, that is, in what format the SR is transmitted on the PUCCH, and the SR is also transmitted in the PUSCH in a punctured manner in the same format.

It should be further noted that, since the SR corresponds to multiple candidate resource locations, but each candidate resource location does not necessarily perform SR transmission, the terminal sends the SR to the network side device at the candidate resource location only when there is a data transmission requirement, and further, the implementation manner ofstep 101 is:

the SR corresponds to at least one candidate transmission position, and when the SR is transmitted at the first candidate transmission position, the SR transmitted at the first candidate transmission position is sent through a PUSCH;

wherein the first candidate transmission position is one of the at least one candidate transmission position.

That is, when one PUSCH overlaps with a plurality of candidate transmission positions configured for one SR, the terminal transmits the SR once through the PUSCH only when the corresponding candidate position is an actual SR (positive SR).

For example, as shown in fig. 6 and 7, the SR period is 2 symbols, and the time domain symbol length of the PUCCH corresponding to the SR is 2; the symbol length of PUSCH is 8, and PUSCH overlaps with 4 candidate transmission positions of SR. When the SR is negative at all candidate transmission positions (i.e., the candidate transmission positions have no SR transmission), the terminal does not need to transmit the SR, and thus does not need to puncture the PUSCH to transmit the SR. When a certain candidate transmission position is a positive SR, the UE transmits the SR on the PUSCH, and because the terminal needs to transmit the SR on the PUSCH when the physical layer SR is the positive SR, the terminal may already start or will start to transmit the PUSCH, so the PUSCH cannot be stopped, a rate matching mode cannot be adopted (the UE is ready for data transmission on the PUSCH and cannot or does not have enough time to prepare data again), and the SR can be transmitted only in a punching mode; if the candidate transmission position indicated by the slashed box in fig. 6 and 7 has SR transmission, then SR puncturing transmission is performed in the time domain of the PUSCH corresponding to the candidate transmission position; the horizontal line box is a candidate transmission position where SR is not transmitted, the grid box is a time domain start position of PUSCH corresponding to an actual transmission position of SR (i.e., a candidate transmission position where SR is actually transmitted), and the slashed box represents the actual transmission position of SR.

Third mode, SR is modulated on a certain list DMRS/certain DMRS of PUSCH for transmission

In the method, the positive SR is transmitted through the REs occupied by the DMRS on the PUSCH, and specifically, the DMRS sequence may be modulated by using an SR modulation symbol, or whether the positive SR exists is indicated by using a different DMRS sequence. Meanwhile, if a plurality of DMRS OFDM symbols exist on the PUSCH, the SR can be modulated on one or partial DMRS OFDM symbols.

In the following, by taking the first method as an example, when the SR starts to perform puncturing mapping on the PUSCH from the OFDM symbol position corresponding to the SR PUCCH. As shown in fig. 8 and 9, when the SR period is 2 symbols, the symbol length of the SR PUCCH is 1, and the SR is positive at the first SR candidate transmission position SR in the portion overlapping the PUSCH, the SR is punctured and transmitted on the PUSCH from the corresponding OFDM symbol position (corresponding to the second OFDM symbol of the PUSCH). Fig. 8 and 9 are schematic diagrams of SR-not-able-to-puncture DMRS symbols, and SR-able-to-use mapping of REs other than DMRS REs on DMRS symbols, respectively; in fig. 8 and 9, the diagonal boxes are REs occupied by DMRSs, the grid boxes are REs occupied by SRs, the horizontal boxes indicate candidate transmission positions of SRs, and there is no SR transmission at the positions, the vertical boxes indicate actual transmission positions of SRs, and the black boxes indicate time-domain start positions of PUSCH corresponding to the actual transmission positions of SRs.

For example, in the second mode, when the SR PUCCH collides with the PUSCH time domain resource, if the SR is a positive SR, the terminal transmits the PUCCH using the partial PRB allocated by the PUSCH at the symbol position of the SR PUCCH. That is, the terminal transmits the SR on a partial PRB of the PUSCH in the same transmission scheme as that on the original PUCCH (excluding the PRB resource block position), that is, if the SR PUCCH is PUCCH format 0, the SR is transmitted in PUCCH format 0, and a certain PRB of the PUSCH is used, for example, as shown in fig. 10, the terminal transmits the SR using the first PRB or the last PRB allocated, the vertical line box in fig. 10 is the PRB transmitting the SR, the horizontal line box is the candidate transmission position where the SR is not transmitted, and the grid box is the time domain start position of the PUSCH corresponding to the candidate transmission position where the SR is actually transmitted. It is noted that, at this time, if the PUCCH corresponds to multiple OFDM symbols, then the UE uses consecutive OFDM symbols when transmitting on the PUSCH, i.e., the UE may puncture DMRS symbols, including DMRS REs.

It should be noted that, in order to ensure that the terminal and the network side device understand in a consistent manner, in which manner the terminal sends the SR, the network side device also receives the SR in a corresponding manner.

It should be noted that, the embodiment of the present invention provides a method for SR puncturing transmission on a PUSCH, so as to ensure that a terminal can transmit a high priority SR in time when there is a high priority SR transmission requirement, reduce a high priority SR transmission delay, reduce an influence on PUSCH transmission, and improve the effectiveness of a communication system.

As shown in fig. 11, an information receiving method provided in an embodiment of the present invention is applied to a network device, and includes:

step 1101, receiving a scheduling request SR through a physical uplink shared channel PUSCH.

Optionally, the implementation manner of step 1101 is:

determining the number of coded modulation symbols mapped by each layer of the SR in the PUSCH and the resource element RE position mapped by the coded modulation symbols of each layer;

and receiving the SR through the PUSCH according to the number of the coded modulation symbols mapped by each layer and the RE position mapped by the coded modulation symbols mapped by each layer.

Further, the determining method of the number of coded modulation symbols mapped by the SR in each layer in the PUSCH includes:

and determining the number of coded modulation symbols mapped by the SR in each layer in the PUSCH according to the bit number and the offset of the SR and the number of REs capable of being used for transmitting the SR on the PUSCH.

Further, the determining method of the resource element RE position mapped by the coded modulation symbol of each layer includes:

the mapping rule comprises at least one of the following:

mapping the SR from a first position of the PUSCH, wherein the first position corresponds to an initial symbol position of a Physical Uplink Control Channel (PUCCH) where the SR is located;

mapping of the SR is performed starting from a first available non-DMRS OFDM symbol after a first demodulation reference signal (DMRS) Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PUSCH.

Specifically, the mapping the SR from the first position of the PUSCH includes one of:

when the SR is mapped to a demodulation reference signal (DMRS) Orthogonal Frequency Division Multiplexing (OFDM) symbol of a Physical Uplink Shared Channel (PUSCH), the SR is mapped to a first RE in the DMRS OFDM symbol, wherein the first RE is other REs except for the RE occupied by the DMRS;

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

Specifically, the mapping of the SR is performed starting from a first available non-DMRS OFDM symbol after a first demodulation reference signal, DMRS, orthogonal frequency division multiplexing, OFDM symbol of the PUSCH, including one of:

the SR can be mapped on the RE occupied by the hybrid automatic repeat request-acknowledgement (HARQ-ACK);

the SR cannot be mapped on REs occupied by HARQ-ACK.

Further, the mapping rule further includes one of:

if the number of REs which can be used for transmitting the SR of the PUSCH is larger than the number of the code modulation symbols to be mapped of the SR on the first orthogonal frequency division multiplexing OFDM symbol, mapping the code modulation symbols to be mapped of the SR on the first OFDM symbol of the PUSCH by adopting a distributed mapping mode;

and if the number of the mapped SR coded bits of the PUSCH is larger than the number of the SR coded bits to be mapped on the second OFDM symbol, mapping the SR coded bits to be mapped on the second OFDM symbol of the PUSCH by adopting a distributed mapping mode.

Optionally, the implementation manner of step 1101 is:

mapping the SR on a PUSCH according to a transmission format of the SR on a Physical Uplink Control Channel (PUCCH);

and receiving the PUSCH mapped with the SR.

Specifically, the receiving a scheduling request SR via a physical uplink shared channel PUSCH includes:

the SR corresponds to at least one candidate transmission position, and when the SR is transmitted at the first candidate transmission position, the SR transmitted at the first candidate transmission position is received through a PUSCH;

It should be noted that all the descriptions regarding the network side device in the above embodiments are applicable to the embodiment of the information receiving method, and the same technical effects can be achieved.

As shown in fig. 12, an embodiment of the present invention provides a terminal 1200, including:

asending module 1201, configured to send a scheduling request SR through a physical uplink shared channel PUSCH.

Optionally, the sendingmodule 1201 includes:

a first determining unit, configured to determine the number of coded modulation symbols mapped by the SR in each layer in the PUSCH and the resource element RE position mapped by the coded modulation symbols in each layer;

and a first sending unit, configured to send the SR via the PUSCH according to the number of coded modulation symbols mapped to each layer and the RE position mapped to the coded modulation symbol of each layer.

Further, the first determining unit determines the number of coded modulation symbols mapped by the SR in each layer of the PUSCH in a manner that:

Optionally, the offset is determined by one of:

configured by radio resource control, RRC;

indicated by downlink control information DCI;

the offset is the same as when the hybrid automatic repeat request acknowledgement HARQ-ACK is transmitted on the PUSCH.

Further, the first determining unit determines the resource element RE position mapped by the coded modulation symbol of each layer in a manner that:

the mapping rule comprises one of the following items:

Specifically, an implementation of mapping the SR from the first position of the PUSCH includes one of:

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

Specifically, starting from the first available non-DMRS OFDM symbol after the first demodulation reference signal DMRS orthogonal frequency division multiplexing OFDM symbol of the PUSCH, an implementation of mapping of the SR includes one of:

the SR cannot be mapped on REs occupied by HARQ-ACK.

Further, the mapping rule further includes one of:

Optionally, the sendingmodule 1201 includes:

a first mapping unit, configured to map, according to a transmission format of an SR on a physical uplink control channel, PUCCH, the SR on the PUSCH;

a first transmission unit, configured to transmit the PUSCH mapped with the SR.

Further, the sendingmodule 1201 is configured to:

It should be noted that the terminal embodiment is a terminal corresponding to the information transmission method applied to the terminal, and all implementation manners of the above embodiments are applicable to the terminal embodiment, and the same technical effects as those of the terminal embodiment can also be achieved.

Fig. 13 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present invention.

The terminal 130 includes but is not limited to:radio frequency unit 1310,network module 1320,audio output unit 1330,input unit 1340,sensor 1350,display unit 1360,user input unit 1370,interface unit 1380,memory 1390,processor 1311, andpower supply 1312. Those skilled in the art will appreciate that the terminal configuration shown in fig. 13 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 invention, 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.

Theradio frequency unit 1310 is configured to send a scheduling request SR through a physical uplink shared channel PUSCH.

The terminal of the embodiment of the invention sends the SR through the PUSCH so as to ensure that the terminal can transmit the SR in time when the SR transmission requirement exists, thereby reducing the SR transmission delay, reducing the influence on the PUSCH transmission and improving the effectiveness of a communication system.

It should be understood that, in the embodiment of the present invention, theradio frequency unit 1310 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink data from a network-side device and then process the received downlink data to theprocessor 1311; in addition, the uplink data is sent to the network side equipment. Generally,radio frequency unit 1310 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 unit 1310 may also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access, such as helping the user send and receive e-mails, browse web pages, and access streaming media, through thenetwork module 1320.

Theaudio output unit 1330 may convert audio data received by theradio frequency unit 1310 or thenetwork module 1320 or stored in thememory 1390 into an audio signal and output as sound. Also, theaudio output unit 1330 may also provide audio output related to a specific function performed by the terminal 130 (e.g., a call signal reception sound, a message reception sound, etc.). Theaudio output unit 1330 includes a speaker, a buzzer, a receiver, and the like.

Theinput unit 1340 is used to receive an audio or video signal. Theinput Unit 1340 may include a Graphics Processing Unit (GPU) 1341 and amicrophone 1342, and theGraphics Processing Unit 1341 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frame may be displayed on thedisplay unit 1360. The image frames processed by thegraphics processor 1341 may be stored in the memory 1390 (or other storage medium) or transmitted via theradio frequency unit 1310 or thenetwork module 1320. Themicrophone 1342 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication network side device via theradio frequency unit 1310 in case of the phone call mode.

The terminal 130 also includes at least onesensor 1350, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of thedisplay panel 1361 according to the brightness of ambient light, and a proximity sensor that turns off thedisplay panel 1361 and/or the backlight when the terminal 130 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; thesensors 1350 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

Thedisplay unit 1360 is used to display information input by the user or information provided to the user. TheDisplay unit 1360 may include aDisplay panel 1361, and theDisplay panel 1361 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

Theuser input unit 1370 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, theuser input unit 1370 includes atouch panel 1371 andother input devices 1372.Touch panel 1371, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1371 (e.g., operations by a user on or neartouch panel 1371 using a finger, a stylus, or any other suitable object or attachment). Thetouch panel 1371 may include two parts of 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 1311, receives a command from theprocessor 1311, and executes the command. In addition, thetouch panel 1371 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to thetouch panel 1371, theuser input unit 1370 may includeother input devices 1372. Specifically, theother input devices 1372 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further,touch panel 1371 can be overlaid ondisplay panel 1361, and whentouch panel 1371 detects a touch operation on or near the touch panel, the touch panel is transmitted toprocessor 1311 to determine the type of the touch event, and thenprocessor 1311 provides a corresponding visual output ondisplay panel 1361 according to the type of the touch event. Although in fig. 13, thetouch panel 1371 and thedisplay panel 1361 are implemented as two independent components to implement the input and output functions of the terminal, in some embodiments, thetouch panel 1371 and thedisplay panel 1361 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

Theinterface unit 1380 is an interface for connecting an external device to the terminal 130. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Theinterface unit 1380 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 130 or may be used to transmit data between the terminal 130 and an external device.

Memory 1390 may be used to store software programs and various data. Thememory 1390 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 1390 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 1311 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in thememory 1390 and calling data stored in thememory 1390, thereby performing overall monitoring of the terminal.Processor 1311 may include one or more processing units; preferably, theprocessor 1311 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 is to be appreciated that the modem processor described above may not be integrated intoprocessor 1311.

Terminal 130 may also include a power supply 1312 (e.g., a battery) for powering the various components, and preferably,power supply 1312 may be logically coupled toprocessor 1311 via a power management system such that the functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the terminal 130 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including aprocessor 1311, amemory 1390, and a computer program stored in thememory 1390 and capable of running on theprocessor 1311, where the computer program, when executed by theprocessor 1311, implements each process of the information transmission method embodiment applied to the terminal side, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the information transmission method embodiment applied to the terminal side, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 14, an embodiment of the present invention further provides anetwork side device 1400, which includes:

areceiving module 1401, configured to receive a scheduling request SR through a physical uplink shared channel PUSCH.

Optionally, thereceiving module 1401 includes:

a second determining unit, configured to determine the number of coded modulation symbols mapped by the SR in each layer in the PUSCH and the resource element RE position mapped by the coded modulation symbol in each layer;

and a receiving unit, configured to receive the SR via the PUSCH according to the number of coded modulation symbols mapped to each layer and the RE position mapped to the coded modulation symbol of each layer.

Specifically, the manner for determining the number of coded modulation symbols mapped by the SR in each layer in the PUSCH by the second determining unit is as follows:

Specifically, the manner for determining the resource element RE position mapped by the coded modulation symbol of each layer by the second determining unit is as follows:

the mapping rule comprises at least one of the following:

Further, the implementation of mapping the SR starting from the first location of the PUSCH includes one of:

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

Further, starting from the first available non-DMRS OFDM symbol after the first demodulation reference signal, DMRS, orthogonal frequency division multiplexing, OFDM symbol of the PUSCH, an implementation of the mapping of the SR is made, including one of:

the SR cannot be mapped on REs occupied by HARQ-ACK.

Further, the mapping rule further includes one of:

Optionally, thereceiving module 1401 includes:

a second mapping unit, configured to map the SR on a PUSCH according to a transmission format of the SR on a physical uplink control channel, PUCCH;

a second receiving unit, configured to receive the PUSCH to which the SR is mapped.

Specifically, thereceiving module 1401 is configured to:

An embodiment of the present invention further provides a network side device, including: the information receiving method applied to the network side device comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the computer program is executed by the processor, each process in the information receiving method embodiment applied to the network side device is realized, the same technical effect can be achieved, and in order to avoid repetition, the details are not repeated.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process in the information receiving method embodiment applied to the network-side device, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Fig. 15 is a structural diagram of a network side device according to an embodiment of the present invention, which can implement details of the information receiving method described above and achieve the same effect. As shown in fig. 15, the network-side device 1500 includes: aprocessor 1501, atransceiver 1502, amemory 1503, and a bus interface, wherein:

theprocessor 1501, which is configured to read the program in thememory 1503, executes the following processes:

the scheduling request SR is received by thetransceiver 1502 through a physical uplink shared channel PUSCH.

In fig. 15, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented byprocessor 1501, and various circuits, represented bymemory 1503, 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 1502 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.

Alternatively, theprocessor 1501, which is configured to read the program in thememory 1503, executes the following processes:

Specifically, theprocessor 1501 is configured to read a program in thememory 1503, which is used to determine the number of coded modulation symbols mapped by SR in each layer of PUSCH, and execute the following procedures:

Specifically, theprocessor 1501, configured to read the program in thememory 1503, for determining the resource element RE position mapped by the coded modulation symbol of each layer, executes the following processes:

the mapping rule comprises at least one of the following:

Further, the mapping the SR starting from the first location of the PUSCH comprises one of:

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

Further, mapping the SR is performed starting from a first available non-DMRS OFDM symbol after a first demodulation reference signal, DMRS, orthogonal frequency division multiplexing, OFDM symbol of the PUSCH, including one of:

the SR cannot be mapped on REs occupied by HARQ-ACK.

Further, the mapping rule further includes one of:

and receiving the PUSCH mapped with the SR.

The network side device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An information transmission method applied to a terminal is characterized by comprising the following steps:

sending a scheduling request SR through a physical uplink shared channel PUSCH;

the sending of the scheduling request SR through the physical uplink shared channel PUSCH includes:

2. The information transmission method according to claim 1, wherein the determination of the number of coded modulation symbols mapped by the SR per layer in the PUSCH includes:

3. The information transmission method according to claim 2, wherein the offset is determined by one of:

configured by radio resource control, RRC;

indicated by downlink control information DCI;

4. The information transmission method according to claim 1, wherein the determining manner of the resource element RE position mapped by the coded modulation symbol of each layer comprises:

the mapping rule comprises one of the following items:

5. The information transmission method according to claim 4, wherein the mapping the SR from the first position of the PUSCH comprises one of:

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

6. The information transmission method according to claim 4, wherein the mapping of the SR is performed starting from a first available non-DMRS OFDM symbol after a first demodulation reference Signal (DMRS) Orthogonal Frequency Division Multiplexing (OFDM) symbol of the PUSCH, and comprises one of:

the SR cannot be mapped on REs occupied by HARQ-ACK.

7. The information transmission method according to claim 4, wherein the mapping rule further includes one of:

8. The information transmission method according to claim 1, wherein the sending a scheduling request SR via a physical uplink shared channel, PUSCH, comprises:

and transmitting the PUSCH mapped with the SR.

9. The information transmission method according to any one of claims 1 to 8, wherein the sending a Scheduling Request (SR) via a Physical Uplink Shared Channel (PUSCH) comprises:

10. An information receiving method is applied to a network side device, and is characterized by comprising the following steps:

receiving a scheduling request SR through a physical uplink shared channel PUSCH;

wherein, the receiving a scheduling request SR through a physical uplink shared channel PUSCH includes:

11. The information receiving method according to claim 10, wherein the determination of the number of coded modulation symbols mapped by the SR per layer in the PUSCH includes:

12. The information receiving method as claimed in claim 10, wherein the manner of determining the RE positions of the resource elements mapped by the coded modulation symbols of each layer comprises:

the mapping rule comprises at least one of the following:

13. The information receiving method according to claim 12, wherein the mapping the SR from the first position of the PUSCH comprises one of:

the SR is mapped to other OFDM symbols except the DMRS OFDM symbol.

14. The information receiving method according to claim 12, wherein the mapping of the SR is performed starting from a first available non-DMRS OFDM symbol after a first demodulation reference signal, DMRS, orthogonal frequency division multiplexing, OFDM symbol of the PUSCH, and includes one of:

the SR cannot be mapped on REs occupied by HARQ-ACK.

15. The information receiving method according to claim 12, wherein the mapping rule further includes one of:

16. The information receiving method according to claim 10, wherein the receiving a scheduling request SR via a physical uplink shared channel, PUSCH, comprises:

and receiving the PUSCH mapped with the SR.

17. The information receiving method according to any one of claims 10 to 16, wherein the receiving a scheduling request SR via a physical uplink shared channel, PUSCH, comprises:

18. A terminal, comprising:

the system comprises a sending module, a scheduling request SR, a scheduling request sending module and a scheduling module, wherein the sending module is used for sending a scheduling request SR through a physical uplink shared channel PUSCH;

wherein, the sending module includes:

19. The terminal according to claim 18, wherein the first determining unit determines the number of coded modulation symbols mapped by the SR per layer in PUSCH in a manner that:

20. The terminal of claim 18, wherein the first determining unit determines the resource element RE position mapped by the coded modulation symbol of each layer by:

the mapping rule comprises one of the following items:

21. The terminal of claim 20, wherein the mapping rule further comprises one of:

22. The terminal of claim 18, wherein the sending module comprises:

a first transmission unit, configured to transmit the PUSCH mapped with the SR.

23. A terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the information transmission method according to one of claims 1 to 9.

24. A network-side device, comprising:

the system comprises a receiving module, a scheduling request SR and a scheduling request transmitting module, wherein the receiving module is used for receiving the scheduling request SR through a physical uplink shared channel PUSCH;

wherein, the receiving module comprises:

25. A network-side device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the information receiving method according to any one of claims 10 to 17.

26. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 9 or the steps of the information reception method according to one of claims 10 to 17.