CN119519909A

CN119519909A - Communication method, communication device, and computer-readable storage medium

Info

Publication number: CN119519909A
Application number: CN202311008449.8A
Authority: CN
Inventors: 张萌; 陈咪咪; 刘浩文
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2025-02-25

Abstract

A communication method, a communication device, and a computer storage medium, the method comprising: sending first information, the first information having N bits, N being a positive integer greater than 1; wherein the first information is carried on a first physical direct link feedback channel PSFCH resource set, the first PSFCH resource set including M PSFCH resources, M being a positive integer. In the solution provided in the present application, PSFCH can carry more information.

Description

Communication method, communication device, and computer-readable storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a communication method, a communication apparatus, and a computer readable storage medium.

Background

In the prior art, the physical direct link Feedback Channel (PHYSICAL SIDELINK Feedback Channel, PSFCH) in the direct link (Sidelink, SL) is typically used to carry hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) messages of the physical direct link shared Channel (PHYSICAL SIDELINK SHARED CHANNEL, PSSCH). In the current protocol PSFCH carries at most 1 bit of information. The number of information bits carried by PSFCH in the future may be more enhanced, and how to carry multiple bits of information by PSFCH is of great research importance.

Disclosure of Invention

The technical problem to be solved by the embodiment of the application is how to use PSFCH to bear information of a plurality of bits.

In a first aspect, an embodiment of the present application provides a communication method, where the method includes sending first information, where the first information has N bits, where N is a positive integer greater than 1, where the first information is carried on a first physical direct link feedback channel PSFCH resource set, and the first PSFCH resource set includes M PSFCH resources, where M is a positive integer.

Optionally, before transmitting the first information of N bits, the method further comprises selecting the first PSFCH resource set from a plurality PSFCH of resource sets.

Optionally, the first PSFCH resource set is determined according to a time-frequency position of a first transmission resource, where the first transmission resource is used for transmitting a reference signal on a direct link or the first transmission resource is used for transmitting a physical direct link shared channel PSSCH.

Optionally, the first PSFCH resource sets occupy Y time-frequency domain resource units, where Y is a positive integer greater than 1, and the Y time-frequency domain resource units are continuous in the frequency domain.

Optionally, the first PSFCH resource set occupies Y time-frequency domain resource units, and the time-frequency domain resource units are configured with at least X pieces of cyclic shift information, where X and Y are positive integers, and Y satisfies at least one of x×y > M;

Optionally, the plurality PSFCH of resources to which the single time-frequency domain resource unit belongs corresponds to a continuous plurality of bits in the N bits, or the plurality PSFCH of resources to which the continuous plurality of time-frequency domain resource units respectively belongs, in the plurality PSFCH of resources to which the cyclic shift information is the same, corresponds to a continuous plurality of bits in the N bits.

Optionally, the N PSFCH resources corresponding to the N bits in the M PSFCH resources meet that the value of each bit is determined according to whether the PSFCH resource corresponding to the bit carries cyclic shift information or not, or the value of each bit is determined according to the cyclic shift value carried by the PSFCH resource corresponding to the bit.

Optionally, the first information is a channel state information CSI report or a beam report.

Optionally, the time-frequency domain resource unit occupied by the first PSFCH resource set is a time-frequency domain resource unit indicated by a second bit map, where the second bit map indicates a time-frequency domain resource unit dedicated for transmitting the first information.

Optionally, the beam corresponding to the kth bit in the N bits is an optimal beam, the PSFCH resource corresponding to the kth bit carries cyclic shift information or carries a first cyclic shift value, K is greater than or equal to 1 and less than or equal to N, and K is a positive integer.

In a second aspect, an embodiment of the present application provides a communication method, where the method includes receiving first information, where the first information has N bits, where N is a positive integer greater than 1, and the first information is carried on a first physical direct link feedback channel PSFCH resource set, where the first PSFCH resource set includes M PSFCH resources, and M is a positive integer.

Optionally, the first PSFCH resource set is selected from a plurality of PSFCH resource sets.

Optionally, the method further comprises determining the value of each bit according to whether PSFCH resources corresponding to the bit carry cyclic shift information or not, or determining the value of the bit according to the cyclic shift value carried by PSFCH resources corresponding to the bit.

In a third aspect, an embodiment of the present application provides a communication method, where the method includes sending feedback information, where the feedback information is carried in direct link control information SCI.

Optionally, the SCI transmits in a first time slot, and if the PSSCH of the physical direct link shared channel in the first time slot does not transmit data, the PSSCH transmitted in the first time slot carries the feedback information.

Optionally, the SCI is transmitted in a second time slot, which is also used for physical direct link feedback channel PSFCH transmissions.

Alternatively, the SCI is a first stage SCI, or the SCI is a second stage SCI.

In a fourth aspect, an embodiment of the present application provides a communication method, where the method includes receiving feedback information, where the feedback information is carried in direct link control information SCI.

Alternatively, the SCI is a first stage SCI, or the SCI is a second stage SCI.

In a fifth aspect, an embodiment of the present application provides a communication device, where the device includes a communication module configured to send first information, where the first information has N bits, where N is a positive integer greater than 1, and the first information is carried on a first physical direct link feedback channel PSFCH resource set, where the first PSFCH resource set includes M PSFCH resources, where M is a positive integer, and M is greater than or equal to N.

In a sixth aspect, an embodiment of the present application provides a communication device, where the device includes a communication module configured to receive first information, where the first information has N bits, where N is a positive integer greater than 1, and the first information is carried on a first physical direct link feedback channel PSFCH resource set, where the first PSFCH resource set includes M PSFCH resources, where M is a positive integer, and M is greater than or equal to N.

In a seventh aspect, an embodiment of the present application provides a communication device, where the device includes a communication module configured to send feedback information, where the feedback information is carried in direct link control information SCI.

In an eighth aspect, an embodiment of the present application provides a communication device, where the device includes a communication module configured to receive feedback information, where the feedback information is carried in direct link control information SCI.

In a ninth aspect, an embodiment of the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, causes the communication method provided in any of the above aspects to be performed.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, including a memory and a processor, the memory storing a computer program executable on the processor, the processor executing the steps of the communication method provided in the first aspect or the communication method provided in the third aspect when the computer program is executed.

In an eleventh aspect, an embodiment of the present application provides a communication apparatus including a memory and a processor, the memory storing a computer program executable on the processor, the processor executing the steps of the communication method provided in the second aspect or the communication method provided in the fourth aspect when the computer program is executed.

In a twelfth aspect, an embodiment of the present application provides a chip (or communication device) on which a computer program is stored, which when executed by the chip, causes the communication method provided in any one of the above aspects to be performed.

In a thirteenth aspect, an embodiment of the present application provides a chip module having a computer program stored thereon, which when executed by the chip module causes the communication method provided in any one of the above aspects to be performed.

In a fourteenth aspect, embodiments of the present application provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the communication method provided by the communication method provided in any of the above-mentioned aspects.

In a fifteenth aspect, an embodiment of the present application provides a communication system including means for performing the communication method provided in the first aspect or the communication method provided in the third aspect or the seventh aspect, and means for performing the communication method provided in the second aspect or the communication method provided in the fourth aspect.

Compared with the prior art, the technical scheme of the embodiment of the application has the following beneficial effects:

in the scheme of the embodiment of the application, the first communication device sends first information to the second communication device, the first information has N bits, and the first information is carried in a first PSFCH resource set comprising M PSFCH resources, wherein M is greater than N. Thus, the communication device on SL can transmit multi-bit information through PSFCH resource sets, and feedback of multi-bit information is achieved.

Further, in the scheme of the embodiment of the present application, Y frequency domain resource units occupied by M PSFCH resources are consecutive in the frequency domain. Such an approach is advantageous in simplifying the process by which the communication device determines the M PSFCH resources in the first PSFCH set of resources.

Drawings

Fig. 1 is a schematic diagram of an application scenario of a communication method in an embodiment of the present application;

FIG. 2 is a signaling interaction diagram of a first communication method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a mapping relationship between a frequency domain resource unit and bits in an embodiment of the present application;

Fig. 4 is a schematic diagram of a mapping relationship between another frequency domain resource unit and bits in an embodiment of the present application;

FIG. 5 is a signaling interaction diagram of another communication method according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a communication device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another communication device according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a hardware structure of a communication device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a PSFCH resource set in an embodiment of the present application.

Detailed Description

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B, and that three cases, a alone, a and B together, and B alone, may exist. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments of the present application means two or more.

The term "at least one" as used in embodiments of the present application refers to one or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order is used, nor is the number of the devices in the embodiments of the present application limited, and no limitation on the embodiments of the present application should be construed.

It should be noted that, the communication system applicable to the embodiment of the present application includes, but is not limited to, a third generation system (3 th-generation, abbreviated as 3G), a long term evolution (long term evolution, abbreviated as LTE) system, a fourth generation system (4 th-generation, abbreviated as 4G), a fifth generation (5 th-generation, abbreviated as 5G) system, a New Radio (abbreviated as NR) system, and a future evolution system or a plurality of communication fusion systems. The 5G system may be a non-independent Networking (NSA) 5G system or an independent networking (standalone, SA) 5G system. The scheme of the embodiment of the application can be also applied to various new communication systems in the future, such as 6G, 7G and the like.

The present application relates generally to communication between terminals, through which different terminals may communicate via SL, e.g. a first terminal may send data or signals to a second terminal via SL. These terminals may also communicate with the network device over the air, e.g., the network device may configure the terminals with certain information.

A terminal in an embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber Station, a Mobile Station (MS), a remote Station, a remote terminal, a Mobile device, a User terminal, a terminal device (Terminal Equipment), a wireless communication device, a User agent, or a User Equipment. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (Public Land Mobile Network, PLMN) and so on, which the embodiments of the present application are not limited.

The network device in the embodiment of the present application may also be referred to as an access network device, for example, may be a Base Station (BS) (also referred to as a base station device), where the network device is a device deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing a base station function in the second generation (2 nd-generation, abbreviated as 2G) network includes a base radio transceiver station (base transceiver station, abbreviated as BTS), the device for providing a base station function in the third generation (3 rd-generation, abbreviated as 3G) network includes a Node B (Node B), the device for providing a base station function in the fourth generation (4 th-generation, abbreviated as 4G) network includes an evolved Node B (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, abbreviated as WLAN) is an Access Point (AP), the next generation base station Node (next generation Node base station, abbreviated as gNB) in NR, and the Node B (ng-eNB) continuing to evolve, wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, abbreviated as E-UTRA) technology, and the gNB and the ng-eNB can be connected to the 5G core network. The network device in the embodiment of the present application further includes a device for providing a base station function in a new communication system in the future, and the like.

The technical scheme of the application is suitable for different network architectures, including but not limited to a relay network architecture, a double-link architecture, a Vehicle-to-Everything (V2X) architecture, a Device-to-Device (D2D) architecture and the like.

Referring to fig. 1, fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. In the communication system applicable to the embodiment of the application, the terminals can directly communicate with each other, and the links between the terminals are SL, which is also called direct link, side link, direct link, auxiliary link or PC5 link. The interface through which the terminal directly communicates is called a PC5 interface. For example, terminal 1 may transmit data or signals to terminal 2 via SL, terminal 1 being the transmitting terminal and terminal 2 being the receiving terminal. The terminal may also communicate with the network device over the air, e.g., the network device may configure the terminal with certain information.

In the current standard protocol, the channels of the direct link may include PSSCH, physical direct link Control Channel (PSCCH), PSFCH, etc. Wherein, PSCCH can be used for transmitting direct link control information (Sidelink Control information, SCI for short), PSSCH is used for transmitting data between terminals.

As described in the background, existing protocols only involve PSFCH schemes that carry 1 bit. In view of this, in the solution of the embodiment of the present application, the first communication device sends first information to the second communication device, where the first information has N bits, and the first information is carried in the first PSFCH resource set including M PSFCH resources. Thus, the communication device on SL can transmit multi-bit information through PSFCH resource sets, and feedback of multi-bit information is achieved.

In addition, in the scheme of the embodiment of the application, a plurality of PSFCH resources are regarded as a whole (namely, PSFCH resource set) through the association relation among PSFCH resources, and a plurality of bits of information are transmitted by using the whole. The association relationship may be predefined or configured. With such a scheme, there is no need to enhance the existing PSFCH (e.g., design a new PSFCH format so that 1 PSFCH resource can transmit multiple bits), and only the association between PSFCH resources needs to be defined or configured.

Some of the terms in the embodiments of the present application will be explained first for understanding by those skilled in the art.

1. Time-frequency domain resource units. The resource unit in the embodiment of the present application may refer to granularity of time domain resources and frequency domain resources used for PSFCH transmission on SL. For example, the time-frequency domain Resource unit may be a Resource Block (RB), or the time-frequency domain Resource unit may be a time-frequency Resource occupying 12 subcarriers in the frequency domain and 2 symbols (symbols) in the time domain, but is not limited thereto.

2. Cyclic shift (CYCLIC SHIFT, CS) information. The CS information in the embodiment of the present application may be a code domain resource for PSFCH transmission on SL. Illustratively, the CS information may be a CS Index or CS Pair Index (CS Pair Index) or CS value.

In particular implementations, each time-frequency domain resource unit may be configured withAnd a CS information, wherein,The specific value of (c) may be configured by the network device or may be determined by a predefined manner.

By way of example only, and not by way of limitation,The specific value of (2) can be 1 or 2 or 3 or 6. Referring to Table 1, table 1 showsAnd m ₀ corresponding to the index is shifted in each cycle when different values are adopted. Where m ₀ represents the cyclic shift of the base sequence.

TABLE 1

3. PSFCH resources. PSFCH resources in the embodiment of the present application are used for PSFCH transmission, and PSFCH resources on a PSFCH transmission time slot can be determined according to a time-frequency domain resource unit and/or CS information. The 1 PSFCH resources may be determined by 1 time-frequency domain resource unit and 1 CS information. The embodiment of the present application does not limit the determination of PSFCH transmission time slots, and the time-frequency domain resource unit and CS information of PSFCH resources are mainly described in detail below.

4. First information. The first information in the embodiment of the present application is information that needs to be transmitted through PSFCH. In a specific implementation, the first information may be information that needs to be carried in PSFCH in the existing protocol, or may also be information that is carried in PSFCH in the future, and the embodiment of the present application does not limit the type of the first information. The first information in the embodiment of the application has a plurality of bits.

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 2, fig. 2 is a signaling interaction schematic diagram of a communication method according to an embodiment of the present application. The method illustrated in fig. 2 may include S21. In the present application, S in each step number represents a step (step).

S21, the first communication device sends first information to the second communication device, wherein the first information is provided with N bits, N is a positive integer greater than 1, the first information is carried on a first physical direct link feedback channel PSFCH resource set, the first PSFCH resource set comprises M PSFCH resources, and M is a positive integer.

Wherein the first communication device and the second communication device may be communication devices that communicate through SL. Specifically, the first communication apparatus refers to a transmitting terminal PSFCH, and the second communication apparatus refers to a receiving terminal PSFCH.

In the scheme of the embodiment of the application, M and N are both positive integers. N may be greater than 1.

In one embodiment of the present application, m=n. That is, the values of M and N may be the same. Specifically, PSFCH resources in the first PSFCH resource set correspond to bits of the first information one-to-one. That is, one PSFCH resource in the first PSFCH set of resources corresponds to one bit of the N bits. For example, the nth bit of the N bits of the first information corresponds to the nth PSFCH resource of the first PSFCH resource set, where 1N is equal to or less than N and N is a positive integer.

In another embodiment of the application, M < N. In this case, i.e. at least one PSFCH resource in the first PSFCH set of resources corresponds to a number of bits of the N bits.

In yet another embodiment of the present application, M > N, in which case the first communication device may select N PSFCH resources from the M PSFCH resources to transmit the first information.

In one application scenario of the present application, the method shown in fig. 2 may be applied to a beam management scenario, and the first Information may be beam feedback Information, for example, beam report or Channel State Information (CSI) report. Specifically, the second communication device may transmit a reference signal (REFERENCE SIGNAL, RS) to the first communication device, which may generate beam feedback information based on the measurements of the RS, and then may transmit the beam feedback information to the second communication device to enable beam management on the SL.

Specifically, the first information has N bits, and the value of each bit in the N bits may correspond to the quality condition of one or more beams. Taking the example that the network device configures 64 beams, N may be 64, where each bit is used to indicate the quality condition of the 1 beam corresponding to the bit. Or N may be 16, where each bit is used to indicate the quality condition of the 4 beams corresponding to the bit, if the bit has a value of 1, it indicates that the quality of the 4 beams meets the requirement, and if the bit has a value of 0, it indicates that the quality of the 4 beams does not meet the requirement.

The RS may be, but not limited to, a channel state Information reference signal (CHANNEL STATE Information REFERENCE SIGNAL, CSI-RS), a Demodulation reference signal (Demodulation REFERENCE SIGNAL, DMRS), a Phase-tracking reference signal (Phase-TRACKING REFERENCE SIGNAL, PTRS), a Sounding reference signal (Sounding REFERENCE SIGNAL, SRS), etc. In another application scenario of the present application, the first information may be one or more HARQ feedback information, where each HARQ feedback information may correspond to at least one RS for beam management, that is, each HARQ feedback information is used to feedback a quality of a beam to which the at least one RS corresponds. The HARQ feedback information may be Acknowledgement (ACK) information, or may be Acknowledgement information (Negative Acknowledgement, NACK). If the HARQ feedback information is ACK information, the beam quality corresponding to the RS is good or the beam quality meets the requirement, otherwise, if the HARQ feedback information is NACK information, the beam quality corresponding to the RS is poor or the beam quality does not meet the requirement.

Prior to S21, the first communication device may determine a first PSFCH set of resources. Wherein the number of the first PSFCH resource sets may be one or more. The first PSFCH resource set in the embodiment of the present application refers to a PSFCH resource set for transmitting first information.

In other embodiments of the present application, PSFCH sets of resources may also be referred to as PSFCH sets of resources, etc., but are not limited thereto.

In implementations, the first communication device may select the first PSFCH set of resources from a plurality of candidate PSFCH sets of resources. Wherein each candidate PSFCH set of resources includes a plurality of PSFCH resources.

In the scheme of the embodiment of the application, the PSFCH resource set comprises a plurality of PSFCH resources which can have an association relation. Specifically, the association relationship between PSFCH resources in the PSFCH resource set may include that the frequency domain positions of PSFCH resources in the PSFCH resource set are continuous, and/or that CS pair indexes of a plurality of PSFCH resources corresponding to the same time-frequency domain resource unit are continuous. For example, the plurality PSFCH of resources included in the PSFCH set of resources may be a plurality of PSFCH resources that are contiguous in the frequency domain. In particular, the CS pair indexes corresponding to the plurality PSFCH of resources in the 1 time-frequency domain resource unit may also be consecutive. For example, the CS pair index corresponding to the plurality PSFCH of resources in the 1 time-frequency domain resource unit may be from small to large or from large to small. Taking the time-frequency domain resource unit as an RB as an example, the sequence numbers of CS pairs corresponding to the plurality PSFCH of resources within 1 RB may be consecutive.

Specifically, PSFCH resource sets occupy one or more time-frequency domain resource units. For example, PSFCH resource sets may occupy a plurality of time-frequency domain resource units, and the plurality of time-frequency domain resource units may have an association relationship therebetween. Wherein, the plurality of time-frequency domain resource units occupied by 1 PSFCH resource sets may be consecutive in frequency domain. Or the multiple time-frequency domain resource units occupied by 1 PSFCH resource sets may also be discontinuous in the frequency domain. Wherein the time-frequency domain resource unit may be 1 RB or may be a time-frequency resource occupying 12 subcarriers in the frequency domain and occupying 2 symbols in the time domain, which is not limited by the embodiment of the present application.

In a specific implementation, the association between the PSFCH resources in the PSFCH resource set or the association between the time-frequency domain resource units may be configured by the network device through higher layer signaling, or may be determined by a pre-configuration mode, or may be configured by the first communication device or may be configured by the second communication device, and the communication device on SL may determine PSFCH resource set based on the configuration of the association.

The PSFCH resource set in the embodiment of the present application is determined by the association relationship between PSFCH resources, that is, a plurality of PSFCH resources with association relationship are bound, and a plurality of PSFCH resources with association relationship are regarded as a whole (that is, PSFCH resource set), and before S21, the first communication device selects PSFCH resource set as granularity, instead of PSFCH resource set as granularity.

Taking RB as an example, in the solution of the embodiment of the present application, the network device may configure an association relationship between RBs, and specifically, the network device may configure an association relationship between RSs through higher layer signaling. The first communication device may configure the association between RBs to the second communication device through higher layer signaling, or the second communication device may configure the association between RBs to the first communication device through higher layer signaling. Or the association relationship between RBs may be preconfigured. For example, L RBs in the frequency domain may be associated or bundled as a whole, L being a positive integer greater than 1. The communication device on SL may use PSFCH resources to which each RB belongs in the whole as one PSFCH resource set, and the PSFCH resource set may be regarded as a new PSFCH resource. When the first communication device has a transmission requirement for the first information, the first communication device may select a first PSFCH set of resources from the plurality of candidate PSFCH sets of resources to transmit the first information.

Still alternatively, the network device may configure PSFCH the number of PSFCH resources contained in the set of resources or the number of RBs required by the set of PSFCH resources through higher layer signaling. Or the first communication device may configure PSFCH the number of PSFCH resources contained in the set of resources or the number of RBs required by the set of PSFCH resources to the second communication device through higher layer signaling. Still alternatively, the second communication apparatus may configure PSFCH the number of PSFCH resources contained in the resource set or the number of RBs required by the PSFCH resource set to the first communication apparatus through higher layer signaling.

It should be noted that the number of time-frequency domain resource units occupied by different PSFCH resource sets may be the same or different, which is not limited by the embodiment of the present application.

In one embodiment, a network device may configure a first bitmap, which may be used to indicate a first available resource unit. Wherein the first available resource unit may refer to a time-frequency domain resource unit that can be used to determine PSFCH a set of resources. For example, taking RB as an example, the first bitmap may be used to indicate RBs that can be associated or bundled as a whole with other RBs.

In another embodiment, the first bitmap may be used to indicate the set of PSFCH resources available. Specifically, each bit in the first bit map corresponds to one PSFCH resource set, if the value of the bit is 1, the PSFCH resource set corresponding to the bit is available, and if the value of the bit is 0, the PSFCH resource set corresponding to the bit is unavailable.

In yet another embodiment, the network device may configure a second bitmap, which may be used to indicate a second available resource unit. Wherein the second available frequency domain resource unit may refer to a time-frequency domain resource unit that can be used for transmitting the first information. Alternatively, the first information may be beam feedback information. More specifically, the second available frequency domain resource unit is not used for transmitting HARQ feedback messages or collision information. In this case, the first information to be sent is beam feedback information, and the time-frequency domain resource units occupied by the first PSFCH resource set are all second available resource units.

Referring to fig. 9, fig. 9 is a schematic diagram of a PSFCH resource set in an embodiment of the present application. As shown in fig. 9, "1" in the second bit map indicates a second available resource unit that can be used for transmitting beam feedback information, and "0" in the second bit map cannot be used for transmitting a time-frequency domain resource unit of beam feedback information. Wherein each RB is configured with 3 pieces of CS information (CS 0, CS1, and CS2, respectively), and PSFCH resources determined based on RB0, RB2, and RB3 and the respective CS information constitute one PSFCH resource set.

With continued reference to fig. 2, in an embodiment of the present application, the first PSFCH set of resources may be determined according to the time-frequency location of the first transmission resource. Wherein the first transmission resource may be used for transmitting the RS on the SL. For example, as described above, the first information is beam feedback information, and the first PSFCH set of resources may be determined according to the time-frequency location of the RS resources.

The first communication device may determine the first PSFCH set of resources based on one of a plurality of sub-channels occupied by the first transmission resource. For example, the first PSFCH set of resources may be determined from a starting subchannel occupied by the first transmission resource. The initial subchannel may be a subchannel with the smallest index number.

Also exemplary, the first communication device may determine the first PSFCH set of resources from all of the subchannels occupied by the first transmission resource.

For another example, the first PSFCH set of resources may be bundled with the set of CSI-RS resources transmitted on SL, and 1 set of CSI-RS resources may correspond to at least one first PSFCH set of resources. The binding may be configurable by the network device or the first communication means or the second communication means by higher layer signaling. Thus, the first communication device may determine a first PSFCH set of resources from the CSI-RS set of resources.

In another embodiment of the present application, the first PSFCH set of resources may be determined based on identification information of the first communication device and/or identification information of the second communication device. Specifically, the first communication apparatus may determine the first PSFCH resource set through identification information of the first communication apparatus (all bits of the ID or a part of the bits in the ID) and/or identification information of the second communication apparatus (all bits of the ID or a part of the bits in the ID). For example, the n+1st PSFCH resource set may be determined to be the first PSFCH resource set from m PSFCH resource sets by the following formula, where source-ID mod m=n, where source-ID is identification information of the first communication device, mod is a remainder operation, and m is the number of PSFCH resource sets.

In other embodiments, the first transmission resource may also be used to transmit the PSSCH. As described above, PSFCH corresponding to the PSSCH transmits first information including HARQ feedback information corresponding to a plurality of PSSCH resources. In this case, the method for determining the first PSFCH resource set according to the first transmission resource may be described above, and will not be described herein.

As a possible implementation manner, the first communication device may first determine the candidate PSFCH resource set, and if the number of the candidate PSFCH resource sets is plural, may select the first PSFCH resource set from the plural candidate PSFCH resource sets.

Specifically, the first communication device may determine the candidate PSFCH resource set according to the number of bits of the first information to be transmitted. For example, the number of PSFCH resources included in the candidate PSFCH set of resources is equal to the number of bits of the first information.

In the solution of the embodiment of the present application, the first PSFCH resource set includes M PSFCH resources, where M is a positive integer. The number of time-frequency domain resource units occupied by the first PSFCH resource set may be denoted as Y. If Y is a positive integer greater than 1, the Y time-frequency domain resource units may be contiguous in the frequency domain, or the Y time-frequency domain resource units may be discontinuous in the frequency domain. In other embodiments, Y may be 1.

Further, each frequency resource unit may be configured with at least X pieces of CS information (e.g., X CS indexes or X CS pair indexes), where X is a positive integer. Y may satisfy at least one of x×y > M; Wherein, Representing an upward rounding. By way of example only, and not by way of limitation,Yet another exemplary embodiment of the present invention is a method of manufacturing a semiconductor device,For example, x=1. In particular, ifIt is illustrated that PSFCH resources, which are part of PSFCH resources to which Y frequency resource units belong, belong to the first PSFCH resource set.

From the above, the first communication device can determine a first PSFCH set of resources for transmitting the first information.

Further, N bits of the first information may be mapped to PSFCH resources in the first PSFCH set of resources. In the scheme of the embodiment of the application, a single PSFCH resource can bear 1 bit of information. The mapping relationship between PSFCH resources in the first PSFCH resource set and bits of the first information is described in detail below.

Specifically, the first information has N bits, and the i-th bit may refer to the i-th bit of the N bits when the N bits are arranged in order from the upper bit to the lower bit. For ease of description, PSFCH resources for carrying the ith bit are referred to below as the ith PSFCH resource. I is more than or equal to 1 and less than or equal to N, i is a positive integer.

In an embodiment of the present application, the value of each bit may be determined according to whether the PSFCH resources corresponding to the bit carry CS information. Wherein, the PSFCH resources corresponding to the bits may refer to PSFCH resources for carrying the bits. The second communication device may determine the value of each bit according to whether the PSFCH resources corresponding to the bit carry CS information. Specifically, if a PSFCH resource does not carry CS information, the second communication device may determine that the bit value corresponding to the PSFCH resource is 0. If a PSFCH resource carries CS information, the second communication device may determine that the value of the bit corresponding to the PSFCH resource is 1.

As a variation, the value of each bit may be determined according to CS information carried by PSFCH resources corresponding to the bit. Wherein, the PSFCH resources corresponding to the bits may refer to PSFCH resources for carrying the bits. The second communication device may determine the value of each bit according to CS information carried by PSFCH resources corresponding to the bit. Taking CS information as a CS pair index as an example, a CS pair corresponding to one CS pair index includes two CS values (a first CS value and a second CS value), where the first CS value represents ACK and the second CS value represents NACK. If a PSFCH resource carries the first CS value, the second communications device may determine that the bit value corresponding to the PSFCH resource is 1. If a PSFCH resource carries the second CS value, the second communications device may determine that the bit value corresponding to the PSFCH resource is 0.

If the first information is beam feedback information, the N bits of the first information may be used to indicate whether the beam indicated by the reference signal resource indicator satisfies a condition, for example, the reference signal is CSI-RS, and the reference signal resource indicator may be a CSI-RS resource indicator (CSI-RS Resource Indicator, CRI). If the bit has a value of 1, it may indicate that the beam indicated by the CRI corresponding to the bit satisfies the condition, and if the bit has a value of 0, it may indicate that the beam indicated by the CRI corresponding to the bit does not satisfy the condition. It should be noted that, the embodiment of the present application does not limit whether the beam satisfies the condition.

In an embodiment of the present application, the first information is beam feedback information, where a beam corresponding to a kth bit in the N bits is an optimal beam, and then PSFCH resources corresponding to the kth bit may carry CS information. Accordingly, PSFCH resources corresponding to other bits may not carry CS information. In this case, the second communication device may determine one or more beams corresponding to the kth bit as an optimal beam, and the beam feedback information may be used to indicate the optimal beam. Wherein K is more than or equal to 1 and less than or equal to N, and K is a positive integer.

Or PSFCH resources corresponding to the kth bit may carry the first CS value. To indicate that the one or more beams corresponding to the kth bit are the optimal beams. Correspondingly, PSFCH resources corresponding to other bits may carry the second CS value. In this case, the second communication device may determine one or more beams corresponding to the kth bit as an optimal beam, and the beam feedback information may be used to indicate the optimal beam. The number of the optimal beams indicated by the beam feedback information may be 1 or an integer greater than 1, which is not limited by the embodiment of the present application.

As one possible implementation, y=1, x+.n. In this case, N PSFCH resources corresponding to N bits may be determined in ascending order of CS information. In other words, PSFCH resources may be mapped to N bits in ascending order of CS information. Specifically, the X PSFCH resources are arranged in ascending order of CS information, and the PSFCH resource to which the i-th CS information belongs is the i-th PSFCH resource. In other embodiments, N PSFCH resources corresponding to N bits may also be determined in descending order of CS information. Specifically, the X PSFCH resources are arranged in descending order of CS information, and the PSFCH resource to which the i-th CS information belongs is the i-th PSFCH resource.

As another possible way, Y >1, the plurality PSFCH of resources to which a single frequency domain resource unit belongs corresponds to consecutive ones of the N bits.

Specifically, bits corresponding to PSFCH resources may be determined sequentially according to the order of CS information and then according to the order of time-frequency domain resource units. In other words, PSFCH resources may be mapped to N bits in the order of CS information and then in the order of the time-frequency domain resource unit index. That is, if all PSFCH resources to which a certain time-frequency domain resource unit belongs are mapped, bits are mapped to PSFCI resources to which a next time-frequency domain resource unit belongs. The order of the CS information may be an ascending order or a descending order of the CS information, and the order of the time-frequency domain resource units may be an ascending order or a descending order of the time-frequency domain resource unit indexes.

Referring to fig. 3, fig. 3 is a schematic diagram of a mapping relationship between PSFCH resources and bits in an embodiment of the present application. In the scheme shown in fig. 3, the first information is beam feedback information. Specifically, N bits of beam feedback information may correspond to N CRIs. As shown in fig. 3, n=8.

Fig. 3 shows a plurality PSFCH of resource sets (PSFCH resource set 1, PSFCH resource set 2, PSFCH resource set 3), each PSFCH resource set occupying 3 RBs, each RB being configured with 3 CS information (CS 1, CS2, and CS3, respectively), wherein CS1, CS2, and CS3 are CS pair indexes. Thus, each PSFCH set of resources includes 9 PSFCH resources. Wherein PSFCH set of resources 1 is the first PSFCH set of resources.

As shown in fig. 3, mapping is performed in ascending order of CS information and then in ascending order of RBs. Thus, PSFCH resources determined by RB1 and CS1 are used to transmit bits corresponding to CRI0, PSFCH resources determined by RB1 and CS2 are used to transmit bits corresponding to CRI1, PSFCH resources determined by RB1 and CS3 are used to transmit bits corresponding to CRI2, PSFCH resources determined by RB2 and CS1 are used to transmit bits corresponding to CRI3, PSFCH resources determined by RB2 and CS2 are used to transmit bits corresponding to CRI4, and so on.

As yet another possible implementation manner, Y >1, a plurality of PSFCH resources with the same CS information in a plurality of PSFCH resources to which a plurality of consecutive time-frequency domain resource units belong correspond to a plurality of consecutive bits in the N bits.

Specifically, bits corresponding to PSFCH resources may be determined sequentially according to the sequence of the time-frequency domain resource units and then according to the sequence of the CS information. That is, bits of PSFCH resources and first information are mapped according to the sequence of time-frequency domain resource units and then according to the sequence of CS information.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a mapping relationship between PSFCH resources and bits according to another embodiment of the present application. The differences between fig. 4 and fig. 3 will be mainly described below.

As shown in fig. 4, mapping is performed in an ascending or descending order of RB and then in an ascending or descending order of CS information. For example, PSFCH resources determined by RB1 and CS1 are used to transmit bits corresponding to CRI0, PSFCH resources determined by RB2 and CS1 are used to transmit bits corresponding to CRI1, PSFCH resources determined by RB3 and CS1 are used to transmit bits corresponding to CRI2, PSFCH resources determined by RB1 and CS2 are used to transmit bits corresponding to CRI3, PSFCH resources determined by RB2 and CS2 are used to transmit bits corresponding to CRI4, PSFCH resources determined by RB3 and CS2 are used to transmit bits corresponding to CRI4, and so on.

In an implementation, if M > N, other PSFCH resources of the M PSFCH resources, except for the N PSFCH resources, may not be used to carry bits. Or may be used to carry other information than the first information, which is not limited in this embodiment.

In the scheme provided by the embodiment of the application, the first communication device can transmit multi-bit information by utilizing PSFCH, which is beneficial to optimizing the communication performance on SL.

Example two

Currently, feedback information on SL is typically carried on the PSSCH for transmission. Specifically, the feedback information is carried in a media access Control-Control Element (MAC CE). The MAC CE on Uu interface has a delay of more than 3 ms, and the MAC CE on PC5 interface is likely to have a larger delay. In view of this, in the scheme provided in this embodiment, feedback information is transmitted through the channel of layer 1, so as to reduce the delay of the feedback information, and ensure the timeliness of feedback, thereby being beneficial to improving the communication performance on SL.

Referring to fig. 5, fig. 5 is a signaling interaction diagram of another communication method according to an embodiment of the present application. The method illustrated in fig. 5 may include S51.

S51, the first communication device transmits feedback information to the second communication device, the feedback information being carried on the SCI.

Correspondingly, the second communication device receives feedback information carried by the SCI.

It should be noted that the feedback information may be information for beam management. The feedback information may be, for example, the beam feedback information above. For example, the feedback information may be a beam report, or may also be a CSI report. Or the feedback information may be HARQ feedback information of the PSSCH transmission.

Further, in consideration of the characteristic that SCI is not independently transmitted, the following manner 1 or manner 2 may be adopted in the scheme of this embodiment to transmit SCI carrying feedback information. It should be noted that, in other embodiments of the present application, SCI carrying feedback information may be transmitted in other manners, which is not limited in this embodiment.

Mode 1. Assuming that SCI carrying feedback information is transmitted in the first slot, if PSSCH in the first slot does not transmit data, the PSSCH transmitted in the first slot carries feedback information.

Specifically, if there is data transmission in the first time slot, the PSSCH in the first time slot is used for transmitting data, and the PSCCH and/or the second-stage SCI in the first time slot carry feedback information. If there is no data transmission in the first time slot, the PSCCH and/or the second-stage SCI in the first time slot carry feedback information, and the PSCCH in the first time slot is also used to transmit feedback information. The feedback information carried on the PSSCH may be the same as the feedback information in the SCI.

Mode 2 assuming that SCI carrying feedback information is transmitted in the second time slot, the second time slot may also be used for PSFCH transmissions.

Specifically, SCI carrying feedback information may be transmitted in a transmission slot of PSFCH.

In the solution of this embodiment, the SCI may be a first-stage SCI, or may also be a second-stage SCI.

By the scheme of the embodiment of the application, the feedback information on the SL is carried in the SCI for transmission, thereby being beneficial to reducing the feedback time delay and ensuring the communication performance on the SL.

It will be appreciated that in a specific implementation, the method may be implemented by a software program running on a processor integrated within a chip or a chip module, or the method may be implemented by hardware or a combination of hardware and software, for example, by a dedicated chip or a chip module, or by a combination of a dedicated chip or a chip module and a software program.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 6 may be disposed in the first communication device, and the communication device shown in fig. 6 may include:

The communication module 61 is configured to send first information, where the first information has N bits, N is a positive integer greater than 1, and the first information is carried on a first physical direct link feedback channel PSFCH resource set, and the first PSFCH resource set includes M PSFCH resources, where M is a positive integer.

Or the communication module 61 may be adapted to send feedback information carried on the direct link control information SCI.

In a specific implementation, the communication device shown in fig. 6 may correspond to a chip having a communication function in the communication device, or correspond to a chip or a chip module having a communication function included in the communication device, or correspond to the communication device.

Referring to fig. 7, fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication device shown in fig. 7 may be disposed in the second communication device, and the communication device shown in fig. 7 may include:

The communication module 71 is configured to receive first information, where the first information has N bits, N is a positive integer greater than 1, and the first information is carried on a first physical direct link feedback channel PSFCH resource set, and the first PSFCH resource set includes M PSFCH resources, where M is a positive integer.

Or the communication module 71 may be configured to receive feedback information carried on the direct link control information SCI.

In a specific implementation, the communication device shown in fig. 7 may correspond to a chip having a communication function in the communication device, or correspond to a chip or a chip module having a communication function included in the communication device, or correspond to the communication device.

For more matters such as the working principle, the working method and the beneficial effects of the communication device in the embodiment of the present application, reference may be made to the above related description about the communication method, which is not repeated here.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, performs the communication method described above. The storage medium may include ROM, RAM, magnetic or optical disks, and the like. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory (non-transitory) or the like.

The embodiment of the application also provides a communication device, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of the communication method when running the computer program. The terminal comprises, but is not limited to, a mobile phone, a computer, a tablet personal computer and other terminal equipment. The terminal may be a mobile phone, a computer, a tablet computer, a vehicle-mounted terminal, a wearable device, etc., but is not limited thereto.

Referring to fig. 8, fig. 8 is a schematic hardware structure of a communication device according to an embodiment of the present application. The communication device shown in fig. 8 comprises a memory 81, a processor 82 and a transceiver 83, the processor 82 being coupled to the memory 81 and the transceiver 83, the memory 81 being located inside the terminal or outside the terminal. The memory 81, the processor 82 and the transceiver 83 may be connected by a communication bus. The transceiver 83 is used to communicate with other devices or communication networks. Alternatively, the transceiver 83 may be a transmitter. The memory 81 has stored thereon a computer program executable on the processor 82, which when executed by the processor 82 the transceiver 83 performs the steps of the communication method provided by the above embodiments. The communication device shown in fig. 8 may be the first communication device described above or the second communication device described above.

It should be appreciated that in the embodiment of the present application, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, abbreviated as DSP), application Specific Integrated Circuits (ASIC), field programmable gate arrays (field programmable GATE ARRAY, abbreviated as FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM EPROM), an electrically erasable programmable ROM (ELECTRICALLY EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM for short) which acts as an external cache. By way of example, and not limitation, many forms of random access memory (random access memory, abbreviated as RAM) are available, such as static random access memory (STATIC RAM, abbreviated as SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (doubledata RATE SDRAM, abbreviated as DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, abbreviated as ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, abbreviated as SLDRAM), and direct memory bus random access memory (direct rambus RAM, abbreviated as DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center, by wire or wirelessly.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units. For example, for each device, product, or application to or integration on a chip, each module/unit contained therein may be implemented in hardware such as a circuit, or at least some of the modules/units may be implemented in hardware such as a circuit, for each device, product, or application to or integration on a chip module, each module/unit contained therein may be implemented in hardware such as a circuit, or different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) of the chip module, or in a different component, or at least some of the modules/units may be implemented in software program that runs on a processor that is integrated within the chip module, and the rest of the modules/units (if any) may be implemented in hardware such as a circuit, for each device, product, application to or integration on a terminal, each module/unit contained therein may be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) of the same chip module, or different component, or at least some of the modules/units may be implemented in hardware such as a circuit, for each module/integration on a terminal, or at least some of the modules/modules may be implemented in hardware such as a circuit, or at least some of the rest of the modules/modules may be implemented in hardware such as a processor.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the method according to the embodiments of the present application. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk, or an optical disk.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A communication method, characterized in that the method comprises:

Sending first information, where the first information has N bits, where N is a positive integer greater than 1;

The first information is carried on a first physical direct link feedback channel PSFCH resource set, and the first PSFCH resource set includes M PSFCH resources, where M is a positive integer.

2. The communication method according to claim 1, characterized in that before sending the N bits of first information, the method further comprises:

The first PSFCH resource set is selected from a plurality of PSFCH resource sets.

3. The communication method according to claim 1, characterized in that the first PSFCH resource set is determined according to the time-frequency position of the first transmission resource;

The first transmission resource is used to transmit a reference signal on a direct link, or the first transmission resource is used to transmit a physical direct link shared channel PSSCH.

4. The communication method according to claim 1 is characterized in that the first PSFCH resource set occupies Y time-frequency domain resource units, wherein Y is a positive integer greater than 1, and the Y time-frequency domain resource units are continuous in the frequency domain.

5. The communication method according to claim 1, characterized in that the first PSFCH resource set occupies Y time-frequency domain resource units, and the time-frequency domain resource units are configured with at least X cyclic shift information, and X and Y are both positive integers;

Where Y satisfies at least one of the following:

X×Y＞M; X×Y＝M;

6. The communication method according to claim 5 is characterized in that the multiple PSFCH resources belonging to a single time-frequency domain resource unit correspond to multiple consecutive bits among the N bits, or the multiple PSFCH resources with the same cyclic shift information among the multiple PSFCH resources belonging to multiple consecutive time-frequency domain resource units correspond to multiple consecutive bits among the N bits.

7. The communication method according to claim 1, wherein the N PSFCH resources corresponding to the N bits in the M PSFCH resources satisfy:

The value of each bit is determined according to whether the PSFCH resource corresponding to the bit carries cyclic shift information, or the value of each bit is determined according to the cyclic shift value carried by the PSFCH resource corresponding to the bit.

8. The communication method according to claim 1 is characterized in that the first information is a channel state information CSI report or a beam report.

9. The communication method according to claim 8 is characterized in that the time-frequency domain resource unit occupied by the first PSFCH resource set is the time-frequency domain resource unit indicated by the second bit map, and the second bit map indication is used to indicate the time-frequency domain resource unit dedicated to transmitting the first information.

10. The communication method according to claim 8 is characterized in that the beam corresponding to the k-th bit among the N bits is the optimal beam, and the PSFCH resource corresponding to the k-th bit carries cyclic shift information or carries a first cyclic shift value, 1≤k≤N, and K is a positive integer.

11. A communication method, characterized in that the method comprises:

Receive first information, where the first information has N bits, where N is a positive integer greater than 1;

12. The communication method according to claim 11 is characterized in that the first PSFCH resource set is selected from multiple PSFCH resource sets.

13. The communication method according to claim 11, characterized in that the first PSFCH resource set is determined according to the time-frequency position of the first transmission resource;

14. The communication method according to claim 11 is characterized in that the first PSFCH resource set occupies Y time-frequency domain resource units, wherein Y is a positive integer greater than 1, and the Y time-frequency domain resource units are continuous in the frequency domain.

15. The communication method according to claim 11, characterized in that the first PSFCH resource set occupies Y time-frequency domain resource units, and the time-frequency domain resource units are configured with at least X cyclic shift information, and X and Y are both positive integers;

Where Y satisfies at least one of the following:

X×Y＞M; X×Y＝M;

16. The communication method according to claim 15 is characterized in that the multiple PSFCH resources belonging to a single time-frequency domain resource unit correspond to multiple consecutive bits among the N bits, or the multiple PSFCH resources with the same cyclic shift information among the multiple PSFCH resources belonging to multiple consecutive time-frequency domain resource units correspond to multiple consecutive bits among the N bits.

17. The communication method according to claim 11, characterized in that the method further comprises:

The value of each bit is determined according to whether the PSFCH resource corresponding to each bit carries cyclic shift information, or the value of the bit is determined according to the cyclic shift value carried by the PSFCH resource corresponding to each bit.

18. The communication method according to claim 11 is characterized in that the first information is a channel state information CSI report or a beam report.

19. The communication method according to claim 18 is characterized in that the time-frequency domain resource unit occupied by the first PSFCH resource set is the time-frequency domain resource unit indicated by the second bit map, and the second bit map indication is used to indicate the time-frequency domain resource unit dedicated to transmitting the first information.

20. The communication method according to claim 18 is characterized in that the beam corresponding to the k-th bit among the N bits is the optimal beam, and the PSFCH resource corresponding to the k-th bit carries cyclic shift information or carries a first cyclic shift value, 1≤k≤N, and K is a positive integer.

21. A communication method, characterized in that the method comprises:

Feedback information is sent, where the feedback information is carried in direct link control information SCI.

22. The communication method according to claim 21 is characterized in that the SCI is transmitted in a first time slot, and if a physical direct link shared channel PSSCH in the first time slot does not transmit data, the PSSCH transmitted in the first time slot carries the feedback information.

23. The communication method according to claim 21 is characterized in that the SCI is transmitted in a second time slot, and the second time slot is also used for physical direct link feedback channel PSFCH transmission.

24. The communication method according to any one of claims 21 to 23, characterized in that the SCI is a first-level SCI, or the SCI is a second-level SCI.

25. A communication method, characterized in that the method comprises:

Feedback information is received, where the feedback information is carried in direct link control information SCI.

26. The communication method according to claim 25 is characterized in that the SCI is transmitted in a first time slot, and if a physical direct link shared channel PSSCH in the first time slot does not transmit data, the PSSCH transmitted in the first time slot carries the feedback information.

27. The communication method according to claim 25 is characterized in that the SCI is transmitted in a second time slot, and the second time slot is also used for physical direct link feedback channel PSFCH transmission.

28. The communication method according to any one of claims 25 to 27, characterized in that the SCI is a first-level SCI, or the SCI is a second-level SCI.

29. A communication device, characterized in that the device comprises:

A communication module, configured to send first information, wherein the first information has N bits, where N is a positive integer greater than 1;

30. A communication device, characterized in that the device comprises:

A communication module, configured to receive first information, where the first information has N bits, where N is a positive integer greater than 1;

31. A communication device, characterized in that the device comprises:

The communication module is used to send feedback information, where the feedback information is carried in direct link control information SCI.

32. A communication device, characterized in that the device comprises:

The communication module is used to receive feedback information, where the feedback information is carried in direct link control information SCI.

33. A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the communication method described in any one of claims 1 to 10 is executed, or the communication method described in any one of claims 11 to 20 is executed, or the communication method described in any one of claims 21 to 24 is executed, or the communication method described in any one of claims 25 to 28 is executed.

34. A communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, characterized in that when the processor runs the computer program, it executes the steps of the communication method described in any one of claims 1 to 10 or executes the steps of the communication method described in any one of claims 21 to 24.

35. A communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, wherein when the processor runs the computer program, the processor executes the steps of the communication method described in any one of claims 11 to 20 or the steps of the communication method described in any one of claims 25 to 28.