Channel sending method and device and storage medium

Abstract

The invention provides a channel sending method and device and a storage medium, and the method comprises the steps that a first terminal sends indication information to a second terminal through a first channel, and the indication information is used for indicating related information of direct link beam failure; the first channel comprises at least one of the following items: a physical direct link feedback channel (PSFCH) carrying related information of direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on the sequence; a new type of physical direct link feedback channel (PSFCH); the related information of the straight-through link beam failure comprises at least one of the following items: new straight-through link beam information; and the first information is used for indicating whether the direct connection link beam failure exists or not, so that the first terminal can efficiently send related information for indicating the direct connection link beam failure to the second terminal based on the first channel, and the second terminal can timely establish a direct connection link data communication link according to the direct connection link beam failure information.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a channel sending method, device and storage medium. Background Art

[0002] In the new radio access vehicle-to-vehicle (NR V2X) technology, terminals communicate directly with each other on a direct link. Even if the beam alignment is completed between the transmitting terminal and the receiving terminal in the initial beam pairing stage of the direct link beam, the terminal may be in motion and new obstructions may appear between the transmitting terminal and the receiving terminal, which may cause the receiving terminal to be unable to receive the direct link beam sent by the transmitting terminal. In this case, a direct link beam failure occurs, which leads to a failure of direct link data transmission or a low transmission rate. Summary of the invention

[0003] The present application aims to solve, at least to some extent, one of the technical problems in the related art in which relevant information on the failure of a link beam needs to be notified to the transmitting terminal.

[0004] To this end, the present application proposes a channel sending method, device and processor-readable storage medium, wherein a first terminal sends indication information of a direct link beam failure to a second terminal through a first channel, so that the second terminal can consider the existence of the direct link beam failure in the direct link beam selection process, thereby reducing the probability of failure of transmission of a direct link positioning reference signal (Side link Positioning Reference Signal, SL PRS) caused by a direct link beam collision, and improving the direct link positioning accuracy.

[0005] The channel sending method proposed in the first aspect embodiment of the present application includes: a first terminal sends indication information to a second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of a direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0006] The channel sending method proposed in the second aspect embodiment of the present application includes: a second terminal receives indication information sent by a first terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of a direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0007] The channel sending device proposed in the third aspect embodiment of the present application includes: a sending unit, used to control the first terminal to send indication information to the second terminal through the first channel, wherein the indication information is used to indicate relevant information of the direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0008] The channel sending device proposed in the fourth aspect embodiment of the present application includes: a receiving unit, used to control the second terminal to receive indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate relevant information of the direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0009] The channel sending device proposed in the fifth aspect embodiment of the present application includes: a memory, a transceiver, and a processor: a memory, used to store a computer program; a transceiver, used to send and receive data under the control of the processor; a processor, used to read the computer program in the memory and perform the following operations: a first terminal sends an indication information to a second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of a direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; relevant information of a direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0010] The channel sending device proposed in the sixth aspect embodiment of the present application includes: a memory, a transceiver, and a processor: a memory, used to store a computer program; a transceiver, used to send and receive data under the control of the processor; a processor, used to read the computer program in the memory and perform the following operations: the second terminal receives the indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate the relevant information of the direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying the relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0011] The processor-readable storage medium proposed in the seventh aspect embodiment of the present application stores a computer program, and the computer program is used to enable the processor to execute: the channel sending method proposed in the first aspect embodiment of the present application, or the channel sending method proposed in the second aspect embodiment of the present application.

[0012] The channel sending method, device and processor-readable storage medium provided in the present application enable the first terminal to send indication information of direct link beam failure to the second terminal through the first channel, so that the second terminal can consider the problem of direct link beam failure in the direct link beam selection process, reduce the probability of failure of direct link positioning reference signal (Side link Positioning Reference Signal, SL PRS) transmission due to direct link beam collision, and improve the direct link positioning accuracy.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 It is a flowchart of a channel sending method proposed in an embodiment of the present application;

[0016] Figure 2a is a schematic diagram of a first channel occupying one symbol proposed in an embodiment of the present application;

[0017] Figure 2b is a schematic diagram of a first channel occupying two symbols proposed in an embodiment of the present application;

[0018] Figure 3 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0019] Figure 4 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0020] Figure 5a It is a schematic diagram of a first channel indicating a through link beam failure situation proposed in an embodiment of the present application;

[0021] Figure 5b It is a schematic diagram of a situation in which each first channel indicates a direct link beam failure proposed in an embodiment of the present application;

[0022] Figure 5c It is a schematic diagram of a single first channel indicating a failure of multiple direct link beams proposed in an embodiment of the present application;

[0023] Figure 6 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0024] Figure 7 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0025] Figure 8a is a schematic diagram of frequency division of the first channel and the second channel proposed in an embodiment of the present application;

[0026] Figure 8b This is a time division diagram of the first channel and the second channel proposed in an embodiment of the present application;

[0027] Fig. 9is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0028] Fig.10 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0029] Fig.11 is a flow chart of a channel sending method proposed in another embodiment of the present application;

[0030] Fig.12 It is a flowchart of a channel sending method proposed in an embodiment of the present application;

[0031] Fig.13 is a structural diagram of a channel sending device proposed in an embodiment of the present application;

[0032] Fig.14 is a structural diagram of a channel sending device proposed in an embodiment of the present application;

[0033] Fig.15 is a structural diagram of a channel sending device proposed in another embodiment of the present application;

[0034] Fig.16 It is a structural diagram of a channel sending device proposed in another embodiment of the present application. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be construed as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0036] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0037] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Long Term Evolution Advanced (LTE-A) system, Universal Mobile Telecommunication System (UMTS), 5G New Radio (NR) system, etc. These various systems include terminals and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0040] In the related technology, that is, in the initial beam pairing stage of the direct link beam, the beam alignment is completed between the transmitting terminal and the receiving terminal. However, since the terminal may be in motion and new obstructions may appear between the transmitting terminal and the receiving terminal, the receiving terminal may not be able to receive the direct link beam sent by the transmitting terminal. At this time, a direct link beam failure will occur, which will lead to a failure of direct link data transmission or a low transmission rate.

[0041] Therefore, in an embodiment of the present application, in order to solve the technical problem in the related technology that when a direct link beam fails, the relevant information indicating the failure of the direct link beam cannot be sent to the sending terminal in time, thereby causing the sending terminal to be unable to take methods such as changing the beam in time to avoid data transmission failure, the first terminal sends indication information to the second terminal through a first channel, wherein the indication information is used to indicate the relevant information of the failure of the direct link beam, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying the relevant information of the failure of the direct link beam; a new physical direct link beam failure indication channel PSB based on a sequence FCH; a new type of physical direct link feedback channel PSFCH; relevant information of direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure; second information, wherein the second information is used to indicate whether there is a direct link beam failure, thereby, the first terminal efficiently sends the indication information of the direct link beam failure to the second terminal through the first channel, so that the second terminal can consider the problem of the existence of the direct link beam failure in the direct link beam selection process, reduce the probability of failure of the transmission of the direct link positioning reference signal (Sidelink Positioning Reference Signal, SL PRS) caused by the direct link beam collision, and improve the direct link positioning accuracy.

[0042] Figure 1 It is a flowchart of a channel sending method proposed in an embodiment of the present application.

[0043] It should be noted that the execution subject of the channel sending method of this embodiment is a channel sending device, which can be implemented by software and / or hardware, and can be configured in a network device, without limitation.

[0044] S101: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0045] Among them, in the initial beam pairing stage of the direct link beam, the beam alignment is completed between the transmitting terminal and the receiving terminal. However, since the terminal may be in motion and new obstructions may appear between the transmitting terminal and the receiving terminal, the receiving terminal may not be able to receive the direct link beam sent by the transmitting terminal. At this time, a direct link beam failure will occur, which will lead to a failure of direct link data transmission or a low transmission rate. In this case, the receiving terminal needs to notify the transmitting terminal of relevant information about the direct link beam failure, so that the sending terminal can take methods such as changing the beam to avoid data transmission failure.

[0046] The first terminal is a receiving terminal, and the second terminal is a sending terminal.

[0047] The first channel may be used for the first terminal to transmit indication information to the second terminal.

[0048] The indication information is used to indicate relevant information of the failure of the direct link beam.

[0049] Optionally, in some embodiments, the direct link beam includes at least one of a physical sidelink control channel (PSCCH) beam and a physical sidelink shared channel (PSSCH) beam.

[0050] Optionally, in some embodiments, the direct link beam includes at least one of a physical direct link control channel PSCCH beam and a physical direct link shared channel PSSCH beam.

[0051] Among them, the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0052] Second information, wherein the second information is used to indicate the existence of a direct link beam failure.

[0053] The new through link beam information may specifically include: a new through link beam pointing direction, a new through link beam shape, a new through link beam weight, etc., and there is no limitation on this.

[0054] That is to say, in an embodiment of the present application, the first terminal sends relevant information indicating a direct link beam failure to the second terminal through a first channel, so that the second terminal can use a new beam to communicate in the direct link based on the new direct link beam information in the relevant information of the direct link beam failure, and / or the second terminal can promptly know whether there is a direct link beam failure based on the first information in the relevant information of the direct link beam failure.

[0055] Optionally, in some embodiments, the relevant information of the direct link beam failure also includes: second information, wherein the second information is used to indicate the existence of the direct link beam failure.

[0056] That is to say, in the embodiment of the present disclosure, the second terminal can directly learn of the existence of a direct link beam failure based on the second information in the relevant information of the direct link beam failure, so that the second terminal can promptly adopt methods such as changing the beam to avoid data transmission failure.

[0057] Among them, the first channel includes at least one of the following: a physical sidelink feedback channel (PSFCH) carrying relevant information about the failure of the sidelink beam; a new sequence-based physical sidelink beam failure indication channel (PSBFCH); a new type of physical sidelink feedback channel PSFCH.

[0058] Optionally, in some embodiments, a new physical direct link beam failure indication channel PSBFCH and a physical direct link feedback channel PSFCH are configured independently of each other.

[0059] Among them, the physical direct link feedback channel PSFCH refers to the existing physical direct link feedback channel PSFCH, which does not carry relevant information about the direct link beam failure, and is different from the new type of physical direct link feedback channel PSFCH.

[0060] Optionally, in some embodiments, the physical direct link feedback channel PSFCH is represented by different time domain resources and / or different frequency domain resources and / or different sequences and / or different cyclic shifts to carry hybrid automatic repeat request acknowledgment (HARQ ACK) information, or carries relevant information about direct link beam failure.

[0061] That is to say, different time domain resources (time slots or subframes) can be used to indicate that the physical direct link feedback channel PSFCH carries HARQ ACK information, or carries relevant information about the failure of the direct link beam, that is, a specific time slot or subframe can be designated as a time slot or subframe for transmitting HARQ ACK, so that the HARQ ACK information can be detected and decoded based on the specific time slot or subframe, or the relevant information about the failure of the direct link beam can be carried. Alternatively, in the frequency domain, a set of specific frequency domain resource blocks (Resource Block, RB) or subcarriers (Sub Carrier, SC) can be allocated for HARQ ACK transmission, so that the HARQ ACK information can be received and decoded on these frequency domain resources, or the relevant information about the failure of the direct link beam can be carried. Alternatively, different sequences can be used to distinguish and indicate that the PSFCH carries HARQ ACK information, or carries relevant information about the failure of the direct link beam.

[0062] Optionally, in some embodiments, the first channel uses a first sequence and / or a first cyclic shift value to indicate that a beam failure exists in a direct link beam corresponding to the first channel.

[0063] The first sequence may be, for example, a pseudo-random sequence, which is not limited.

[0064] The first sequence constitutes the first channel, the first channel is the carrier of the first sequence, and the first sequence is the content of the first channel.

[0065] That is to say, in an embodiment of the present application, the first channel may use different first sequences or different first cyclic shift values ​​(Cyclic Shift, CS) of the same sequence to indicate whether there is a beam failure in the direct link beam corresponding to the first channel, so that the second terminal can accurately know whether there is a beam failure in the direct link beam corresponding to the first channel based on the indication of the first sequence and / or the first cyclic shift value of the first channel.

[0066] For example, the sequence length of the first channel is 12, occupying 12 subcarriers of an RB, and the cyclic shift value of a first sequence includes candidate values ​​such as {1,2,3,6}. Therefore, for the same sequence, the first channel can use CS#1 of the same sequence to indicate that the direct link beam corresponding to the first channel has a beam failure, and use CS#2 to indicate that the direct link beam corresponding to the first channel does not have a beam failure. Alternatively, for different sequences, the first channel can also use sequence #1 to indicate that the direct link beam corresponding to the first channel has a beam failure, and use sequence #2 to indicate that the direct link beam corresponding to the first channel does not have a beam failure. There is no restriction on this.

[0067] Specifically, see Figure 2a , Figure 2a This is a schematic diagram of a first channel occupying one symbol proposed in an embodiment of the present application, that is, the first terminal sends the first channel in symbol No. 10 of a certain RB it occupies, and the first channel occupies 12 subcarriers of one RB and occupies one symbol. On this RB, a sequence of length 12 is placed on its 12 subcarriers, and the cyclic shift value of a sequence includes candidate values ​​such as {1,2,3,6}, so that more first channels can be accommodated. If different first channels use the same sequence, then CS#1 of the same sequence is used to indicate that the direct link beam corresponding to the first channel has a beam failure, and CS#2 is used to indicate that there is no beam failure; if different first channels use different sequences, then sequence #1 is used to indicate that the direct link beam corresponding to the first channel has a beam failure, and sequence #2 is used to indicate that there is no beam failure.

[0068] Optionally, in some embodiments, the first channel occupies one symbol or two symbols, wherein when occupying two symbols, the first channel is repeatedly sent based on a first symbol and a second symbol of the two symbols.

[0069] For example, see above Figure 2a and Figure 2b , Figure 2b This is a schematic diagram of the first channel occupying two symbols proposed in an embodiment of the present application, that is, the first terminal repeatedly sends the first channel in the 9th symbol and the 10th symbol of a certain RB it occupies, and the first channel occupies 12 subcarriers of an RB, occupies two symbols, and the 9th symbol is a complete repetition of the 10th symbol. Therefore, the first channel on the 9th symbol can be used for automatic gain control (Automatic Gain Control, AGC), and secondly, the 9th symbol and the 10th symbol map the same sequence, which is equivalent to symbol repetition, thereby improving the reception success rate of the first channel.

[0070] In an embodiment of the present application, the first terminal sends indication information to the second terminal through the first channel, wherein the indication information is used to indicate relevant information about the failure of the direct link beam. When a first channel scheme of one symbol is adopted, the signaling overhead is small, and when a first channel scheme of two symbols is used, the first channel reception performance is better.

[0071] In an embodiment of the present application, a first terminal sends indication information to a second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure; second information, wherein the second information is used to indicate the existence of a direct link beam failure, thereby, the first terminal sends indication information of the direct link beam failure to the second terminal through the first channel, so that the second terminal can consider the existence of the direct link beam failure in the direct link beam selection process, thereby reducing the probability of failure of transmission of the direct link positioning reference signal (Side link Positioning Reference Signal, SL PRS) due to direct link beam collision, and improving the direct link positioning accuracy.

[0072] Figure 3 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0073] like Figure 3 As shown, the channel sending method includes:

[0074] S301: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0075] The specific description of S301 can be found in the above embodiment, which will not be repeated here.

[0076] S302: Establish a mapping relationship between resources occupied by the first channel and new direct link beam information.

[0077] Optionally, in some embodiments, the resources occupied by the first channel correspond one-to-one to the new direct link beam information, thereby maximizing the optimization of system resource utilization and channel quality, and improving system capacity and performance.

[0078] That is to say, in an embodiment of the present application, a one-to-one mapping can be established between the resources occupied by the first channel and the new direct link beam (channel state information reference signal index number (Channel State Information Reference Signal, CSI-RS) index number or secondary synchronization signal block index number (Secondary Synchronization Signal Block, S-SSB), that is, the resources occupied by a first channel uniquely correspond to a new direct link beam information.

[0079] S303: The first terminal indicates new direct link beam information to the second terminal by using time domain and / or frequency domain resources of the first channel.

[0080] In an embodiment of the present application, after establishing a mapping relationship between the resources occupied by the first channel and the new direct link beam information, the first terminal implicitly indicates the new alternative beam to the other UE second terminal through the time domain and / or frequency domain resources of the first channel used by it, that is, the second terminal can determine the new direct link beam that has a one-to-one mapping relationship with the time and frequency resources of the first channel based on the one-to-one mapping relationship between the first channel resource index number and the CSI-RS index number or the S-SSB index number, thereby saving the overhead of signaling indication.

[0081] In an embodiment of the present application, a first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure. Thus, the first terminal sends indication information of a direct link beam failure to the second terminal via the first channel, so that the second terminal can consider the existence of a direct link beam failure in the direct link beam selection process, thereby reducing the probability of a direct link positioning reference signal (Side link Positioning Reference Signal, SL PRS) transmission failure caused by a direct link beam collision, improving the direct link positioning accuracy, and establishing a mapping relationship between the resources occupied by the first channel and the new direct link beam information. Then, the first terminal indicates the new direct link beam to the second terminal through the time-frequency resources of the first channel used, thereby saving the overhead of signaling indication.

[0082] Figure 4 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0083] like Figure 4 As shown, the channel sending method includes:

[0084] S401: The first terminal sends a first channel to indicate that there is a direct link beam failure.

[0085] That is to say, if the first terminal sends the first channel, it can indicate that there is a direct link beam failure. Otherwise, that is, if there is no direct link beam failure, the first terminal does not send the first channel.

[0086] For example, Figure 5a As shown, Figure 5a This is a schematic diagram of a first channel indicating a direct link beam failure proposed in an embodiment of the present application, that is, the second terminal sends the first direct link beam on the 7th time slot of the 3rd subchannel, and a beam failure occurs. In this way, the first terminal detects that the first direct link beam sent by the second terminal has a beam failure by receiving and decoding the second direct link beam information, so the first terminal sends the first channel to the second terminal on the 10th time slot of the 4th subchannel to indicate that the first direct link beam has a direct link beam failure. If the first terminal does not detect the existence of a direct link beam failure, the first terminal will not send the first channel.

[0087] The subchannel is a frequency domain unit for allocating resources of a direct link, and a subchannel is composed of one or more continuous physical resource blocks (PRBs) in the frequency domain.

[0088] S402: The first terminal sends first information to the second terminal through a first channel, wherein the first information is used to indicate whether there is a direct link beam failure in at least one direct link beam.

[0089] Optionally, in some embodiments, the first information indicates whether there is a direct link beam failure in a direct link beam, wherein if the first information includes a first value, it corresponds to an indication that there is a direct link beam failure in a direct link beam, and if the first information includes a second value, it corresponds to an indication that there is no direct link beam failure in a direct link beam.

[0090] The first terminal sends first information to the second terminal through the first channel. The first information may include a first value and / or a second value. The first value may be, for example, "yes", and the second value may be, for example, "no".

[0091] That is to say, a first channel indicates whether a direct link beam has a beam failure. At this time, it can be determined whether the first information includes the first value and / or the second value. If the first information includes the first value, it corresponds to an indication that a direct link beam failure exists in a direct link beam. If the first information includes the second value, it corresponds to an indication that there is no direct link beam failure in a direct link beam.

[0092] For example, Figure 5b As shown, Figure 5b This is a schematic diagram of each first channel indicating a direct link beam failure situation proposed in an embodiment of the present application, that is, the second terminal sends the first direct link beam on the 2nd time slot of subchannel No. 1, terminal C sends the second direct link beam on the 3rd time slot of subchannel No. 3, and terminal D sends the third direct link beam on the 5th time slot of subchannel No. 4. The first terminal receives and decodes the three direct link beams, and detects that the second direct link beam among the three direct link beams sent by the second terminal / terminal C / terminal D has a beam failure, so the first terminal uses three first channels on the 6th time slot of subchannel No. 2 to indicate whether the three direct link beams have a beam failure. Figure 5b The three small squares in the time slot No. 6 of the subchannel No. 2 represent three first channels respectively, wherein each first channel occupies one RB in the frequency domain and two orthogonal frequency division multiplexing (OFDM) symbols in the time domain.

[0093] At this time, the first terminal sends the beam failure information to the second terminal / terminal C / terminal D through three first channels. If the beam failure information is received, the second terminal / terminal C / terminal D will consider changing the beam to avoid the failure of direct link data packet transmission. This is a Yes / No-based response mechanism, that is, a first channel indicates whether a direct link beam has a beam failure, and uses "yes" or "no" to indicate whether the direct link beam has a beam failure. Therefore, one first channel corresponds to a direct link beam, and can independently indicate the beam failure of each direct link beam.

[0094] Optionally, in some embodiments, the first information also indicates whether there is a direct link beam failure in multiple direct link beams, wherein if the first information includes a first value, it corresponds to an indication that there is a direct link beam failure in at least one direct link beam, and if the first information includes a second value, it corresponds to an indication that there is no direct link beam failure in all direct link beams.

[0095] The first terminal sends first information to the second terminal through the first channel. The first information may include a first value and / or a second value. The first value may be, for example, "yes", and the second value may be, for example, "no".

[0096] That is to say, a first channel indicates whether there is beam failure in multiple direct link beams. At this time, it can be determined whether the first information includes the first value and / or the second value. If the first information includes the first value, it corresponds to an indication that there is a direct link beam failure in at least one direct link beam. If the first information includes the second value, it corresponds to an indication that there is no direct link beam failure in all direct link beams.

[0097] For example, Figure 5c As shown, Figure 5c This is a schematic diagram of a single first channel indicating multiple direct link beam failures proposed in an embodiment of the present application. The first terminal detects the beam failure of the direct link beam to be sent by the second terminal / terminal C / terminal D by receiving and decoding three direct link beams, so the first terminal uses a first channel on the 6th time slot of subchannel No. 2 to simultaneously indicate whether the three direct link beams have beam failures. A small square in the 6th time slot of subchannel No. 2 in the figure represents the first channel, which occupies one RB in the frequency domain and two OFDM symbols in the time domain.

[0098] At this time, the first terminal sends the beam failure information to the second terminal / terminal C / terminal D through a first channel. If there is a beam failure, the second terminal / terminal C / terminal D will change the beam to avoid the failure of direct link data packet transmission. This is a Yes-based response mechanism, that is, a first channel indicates whether there is a beam failure in multiple direct link beams. "Yes" is used to indicate that at least one of the direct link beams has a beam failure, and "No" is used to indicate that all direct link beams do not have a beam failure. Therefore, a first channel corresponds to multiple direct link beams, and a first channel indicates whether there is a beam failure in multiple direct link beams, and the signaling overhead is small.

[0099] In an embodiment of the present application, the first terminal sends a first channel to indicate the existence of a direct link beam failure, so that without introducing additional information, the first terminal directly indicates the existence of a direct link beam failure based on the sending, which can reduce the signaling overhead caused by the additional information indication, or the first terminal indicates whether there is a direct link beam failure in at least one direct link beam by sending the first channel, so that the first terminal can independently indicate the beam failure status of each direct link beam by sending the first channel, or the first terminal can indicate the beam failure status of each direct link beam by sending the first channel.

[0100] Figure 6 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0101] like Figure 6 As shown, the channel sending method includes:

[0102] S601: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0103] The specific description of S601 can be found in the above embodiment, which will not be repeated here.

[0104] S602: Indicate the type of direct link beam failure based on different sequence sets and / or different frequency domain resource sets used by the first channel.

[0105] Among them, the types of direct link beam failure include: physical direct link shared channel PSSCH beam failure, physical direct link control channel PSCCH beam failure.

[0106] That is to say, in an embodiment of the present application, in order to distinguish whether the failure object of a direct link beam is a PSCCH beam or a PSSCH beam, different sequence sets or frequency domain resource sets can be used to indicate whether the direct link beam failure is a PSCCH beam failure or a PSSCH beam failure.

[0107] Optionally, in some embodiments, the type of direct link beam failure is indicated based on different sequence sets. If the first channel uses a sequence in the first sequence set, the direct link beam corresponding to the first channel undergoes a direct link beam failure, and the type of direct link beam failure is a physical direct link shared channel PSSCH beam failure, or if the first channel uses a sequence in the second sequence set, the direct link beam corresponding to the first channel undergoes a direct link beam failure, and the type of direct link beam failure is a physical direct link control channel PSCCH beam failure, wherein the first sequence set and the second sequence set are orthogonal to each other.

[0108] The sequence sets that can be used by the first channel include: a first sequence set and a second sequence set, and the first sequence set and the second sequence set are orthogonal to each other.

[0109] That is to say, if the first channel uses a sequence in the first sequence set, the direct link beam corresponding to the first channel has a direct link beam failure, and the type of direct link beam failure is a physical direct link shared channel PSSCH beam failure, or if the first channel uses a sequence in the second sequence set, the direct link beam corresponding to the first channel has a direct link beam failure, and the type of direct link beam failure is a physical direct link control channel PSCCH beam failure.

[0110] Optionally, in some embodiments, the type of direct link beam failure is indicated based on different frequency domain resource sets. If the first channel uses frequency domain resources in the first frequency domain resource set, then the direct link beam corresponding to the first channel undergoes a direct link beam failure, and the type of direct link beam failure is a physical direct link shared channel PSSCH beam failure; if the first channel uses frequency domain resources in the second frequency domain resource set, then the direct link beam corresponding to the first channel undergoes a direct link beam failure, and the type of direct link beam failure is a physical direct link control channel PSCCH beam failure, wherein the first frequency domain resource set and the second frequency domain resource set are orthogonal to each other.

[0111] The frequency domain resources may be, for example, channels, RBs, comb teeth, etc., and there is no limitation on this.

[0112] The frequency domain resource sets that can be used by the first sequence include: a first frequency domain resource set and a second frequency domain resource set, and the first frequency domain resource set and the second frequency domain resource set are orthogonal to each other.

[0113] That is to say, if the first channel uses the frequency domain resources in the first frequency domain resource set, the direct link beam corresponding to the first channel will experience a direct link beam failure, and the type of direct link beam failure is a physical direct link shared channel PSSCH beam failure; if the first channel uses the frequency domain resources in the second frequency domain resource set, the direct link beam corresponding to the first channel will experience a direct link beam failure, and the type of direct link beam failure is a physical direct link control channel PSCCH beam failure.

[0114] In an embodiment of the present application, a first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and indicates the type of direct link beam failure based on different sequence sets and / or different frequency domain resource sets used by the first channel, so that the first terminal accurately indicates whether the direct link beam failure is a PSSCH beam failure or a PSCCH beam failure by using different sequence sets or frequency domain resource sets, so that the second terminal can re-establish a direct link data communication link based on the direct link beam failure information, thereby reducing the probability of data packet transmission failure caused by the direct link beam failure and improving the direct link data packet transmission success rate.

[0115] Figure 7 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0116] like Figure 7 As shown, the channel sending method includes:

[0117] S701: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0118] In the embodiment of the present application, the second channel is a physical direct link feedback channel PSFCH that carries hybrid automatic repeat request acknowledgement HARQ ACK information.

[0119] Optionally, in some embodiments, a set of frequency domain resources occupied by the first channel and a set of frequency domain resources occupied by the second channel are different.

[0120] The frequency domain resource set is, for example, a PRB, an RB set or a resource pool, to which there is no limitation.

[0121] For example, see Figure 8a , Figure 8aThis is a frequency division diagram of the first channel and the second channel proposed in an embodiment of the present application, that is, the first channel and the second channel are frequency-division multiplexed, and the first channel and the second channel occupy different frequency domain resources (for example, occupy different PRBs, RB sets or resource pools, and are distinguished by PRBs, RB sets or resource pools), thereby avoiding conflicts in the time-frequency resources used by both parties. In addition, the first channel and the second channel are in the same time domain resources, and both occupy symbols 11 and 12.

[0122] Optionally, in some embodiments, the symbols occupied by the first channel and the symbols occupied by the second channel are different.

[0123] That is, the first channel and the second channel are time-division multiplexed, for example, the first channel occupies 2 symbols in front of the second channel.

[0124] For example, see Figure 8b , Figure 8b This is a time division diagram of the first channel and the second channel proposed in an embodiment of the present application, that is, the first channel and the second channel occupy different time domain resources, the first channel occupies symbols 9 and 10, and the second channel occupies symbols 11 and 12, thereby avoiding conflicts in the time and frequency resources used by both parties. In addition, the first channel and the second channel are in the same frequency domain resources.

[0125] S702: Calculate the index number of the first channel according to the index number of the first terminal and / or the index number of the second terminal.

[0126] Optionally, in some embodiments, the index number of the first channel is calculated based on the index number of the first terminal and / or the index number of the second terminal. In the case of unicast or multicast option 1 that requires feedback on the existence of beam failure, the index number of the first channel is calculated using the layer 1 source ID L1 source ID of the second terminal; in the case of multicast option 2 that requires feedback on whether there is a beam failure, the index number of the first channel is calculated using the layer 1 source ID L1 source ID of the second terminal and the member ID member ID of the first terminal.

[0127] That is to say, in an embodiment of the present application, for unicast or multicast option 1 (Option 1) that only requires feedback on the existence of beam failure, the layer 1 source identifier (Layer 1 source ID, L1 source ID) of the second terminal can be used to calculate the index number of the first channel; for multicast option 2 (Option 2) that requires feedback on whether there is a beam failure, the L1 source ID of the second terminal and the member identifier (member ID) of the first terminal can be used to calculate the index number of the first channel.

[0128] In an embodiment of the present application, since the index number of the first channel is calculated based on the index number of the first terminal and / or the index number of the second terminal, it has the advantages of flexibility, resource saving and process simplification in beam failure and multicast scenarios, which helps to improve the system performance and user experience.

[0129] S703: Determine frequency domain resources of the first channel according to the index number of the first channel.

[0130] In an embodiment of the present application, the first channel is configured with a dedicated frequency domain resource set, which is different from the frequency domain resource set of the second channel, and the frequency domain resource set is a PRB or RB set.

[0131] Therefore, after calculating the index number of the first channel according to the index number of the first terminal and / or the index number of the second terminal, the embodiment of the present application can map the index number of the first channel to a specific frequency domain resource set to accurately determine the frequency domain resource set of the first channel.

[0132] In an embodiment of the present application, an indication message is sent to a second terminal through a first channel by a first terminal, wherein the indication message is used to indicate relevant information about a direct link beam failure, and then the index number of the first channel is calculated based on the index number of the first terminal and / or the index number of the second terminal, thereby having the advantages of flexibility, resource saving, and process simplification in beam failure and multicast scenarios, helping to improve system performance and user experience, and then accurately and efficiently determining the frequency domain resources of the first channel based on the index number of the first channel.

[0133] Fig. 9 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0134] like Fig. 9 As shown, the channel sending method includes:

[0135] S901: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0136] In an embodiment of the present application, the first channel and the second channel are multiplexed in the same frequency domain resource set (wherein the frequency domain resource set is an RB set), and the second channel is a physical direct link feedback channel PSFCH carrying hybrid automatic repeat request confirmation HARQ ACK information.

[0137] S902: Obtain an index number of a first channel based on a first calculation formula.

[0138] Among them, the first formula is:

[0139] First channel_Index=(K+M)Mod(L*Y);

[0140] Among them: K represents the truncated layer 2 source ID (L2 sourceID) carried in the direct link control information (SidelinkControl Information, SCI) associated with the direct link beam sent by the second terminal, the value of M is related to the mode of feedback of relevant information about the failure of the direct link beam, L represents the number of physical resource blocks PRB in the frequency domain resource set where the first channel is located, Y represents the number of cyclic shift pairs for feedback of relevant information about the failure of the direct link beam that can be carried in a physical resource block PRB, and the frequency domain resource set is a resource block RB set.

[0141] Optionally, in some embodiments, the value of M is related to a mode of feedback of relevant information about the failure of a direct link beam; when the mode of feedback of relevant information about the failure of a direct link beam is unicast, M is 0; when the mode of feedback of relevant information about the failure of a direct link beam is multicast feedback option 1, M is 0; when the mode of feedback of relevant information about the failure of a direct link beam is multicast feedback option 2, M is the multicast member ID of the first terminal.

[0142] S903: Determine frequency domain resources of the first channel according to the index number of the first channel.

[0143] The specific description of S903 can be found in the above embodiment, which will not be repeated here.

[0144] In an embodiment of the present application, the first terminal sends indication information to the second terminal through the first channel, wherein the indication information is used to indicate relevant information about the failure of the direct link beam, and then accurately calculates the index number of the first channel based on the first formula, so that the frequency domain resources of the first channel can be accurately and efficiently determined according to the index number of the first channel.

[0145] Fig.10 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0146] like Fig.10 As shown, the channel sending method includes:

[0147] S1001: The first terminal sends first information to the second terminal via a new type of physical direct link feedback channel PSFCH, wherein the first information is used to indicate whether there is a direct link beam failure, and the resources used by the new type of physical direct link feedback channel PSFCH are PSFCH resources not used by terminals using multicast hybrid automatic repeat request option 2.

[0148] That is to say, in an embodiment of the present application, a new type of physical direct link feedback channel PSFCH can carry the first information, so that the first terminal can send the first information to the second terminal through the new type of physical direct link feedback channel PSFCH to indicate to the second terminal whether there is a direct link beam failure, thereby avoiding the standardization complexity and higher signaling overhead brought about by the introduction of new channels.

[0149] Optionally, in some embodiments, a new type of physical direct link feedback channel PSFCH is used to indicate whether the physical direct link shared channel PSSCH resources are correctly received and whether there is a direct link beam failure.

[0150] That is to say, the new type of PSFCH not only feeds back whether the PSSCH resources indicated by the SCI are correctly received, but also feeds back whether there is a beam failure on the direct link beam indicated by the SCI.

[0151] Optionally, in some embodiments, a new type of physical direct link feedback channel PSFCH carries two bits, one of the two bits indicates physical direct link shared channel PSSCH confirmation information or non-confirmation information, and the other bit indicates whether there is a direct link beam failure.

[0152] That is to say, the new type of physical direct link feedback channel PSFCH is expanded from carrying 1 bit to carrying 2 bits compared to the original PSFCH. One of the two bits indicates the physical direct link shared channel PSSCH confirmation information or non-confirmation information, and the other bit indicates whether there is a direct link beam failure.

[0153] S1002: Receive air interface signaling sent by the base station, where the air interface signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and related information of direct link beam failure.

[0154] That is to say, in an embodiment of the present application, the first terminal can receive the air interface signaling of the base station, and thus, based on the air interface signaling, can accurately obtain the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the related information of the direct link beam failure.

[0155] Optionally, in some embodiments, if the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information. If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure.

[0156] That is to say, in the embodiment of the present application, if the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, then the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information. If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, then the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure, thereby, based on the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the relevant information of the direct link beam failure, the information carried by the new type of PSFCH can be accurately determined.

[0157] In an embodiment of the present application, a first terminal sends first information to a second terminal through a new type of physical direct link feedback channel PSFCH, wherein the first information is used to indicate whether there is a direct link beam failure, and the resources used by the new type of physical direct link feedback channel PSFCH are PSFCH resources not used by terminals using multicast hybrid automatic repeat request option 2, thereby avoiding the standardization complexity and high signaling overhead brought about by the introduction of new channels, and then receiving air interface signaling sent by the base station, wherein the air interface signaling is used to indicate the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the related information of the direct link beam failure, thereby, based on the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the related information of the direct link beam failure, the information carried by the new type of PSFCH can be accurately determined.

[0158] Fig.11 It is a flowchart of a channel sending method proposed in another embodiment of the present application.

[0159] like Fig.11 As shown, the channel sending method includes:

[0160] S1101: A first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0161] The specific description of S1101 can be found in the above embodiment, which will not be repeated here.

[0162] S1102: Receive direct link signaling sent by the second terminal, where the direct link signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and related information of direct link beam failure.

[0163] That is to say, in an embodiment of the present application, the first terminal can receive the direct link signaling sent by the second terminal, so that based on the direct link signaling sent by the second terminal, the first terminal can accurately obtain the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the related information of the direct link beam failure.

[0164] Optionally, in some embodiments, if the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information. If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure.

[0165] That is to say, in the embodiment of the present application, if the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, then the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information. If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, then the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure, thereby, based on the priority relationship between the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and the relevant information of the direct link beam failure, the information carried by the new type of PSFCH can be accurately determined.

[0166] In an embodiment of the present disclosure, a first terminal sends indication information to a second terminal via a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and receives direct link signaling sent by the second terminal, wherein the direct link signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and relevant information of a direct link beam failure. Thus, based on the priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and relevant information of a direct link beam failure, the information carried by the new type of PSFCH signal can be accurately determined.

[0167] Fig.12 It is a flowchart of a channel sending method proposed in an embodiment of the present application.

[0168] It should be noted that the execution subject of the channel sending method of this embodiment is a channel sending device, which can be implemented by software and / or hardware, and can be configured in a network device, without limitation.

[0169] S1201: A second terminal receives indication information sent by a first terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure.

[0170] Among them, in the initial beam pairing stage of the direct link beam, the beam alignment is completed between the transmitting terminal and the receiving terminal. However, since the terminal may be in motion and new obstructions may appear between the transmitting terminal and the receiving terminal, the receiving terminal may not be able to receive the direct link beam sent by the transmitting terminal. At this time, a direct link beam failure will occur, which will lead to a failure of direct link data transmission or a low transmission rate. In this case, the receiving terminal needs to notify the transmitting terminal of relevant information about the direct link beam failure, so that the sending terminal can take methods such as changing the beam to avoid data transmission failure.

[0171] The first terminal is a receiving terminal, and the second terminal is a sending terminal.

[0172] The first channel may be used for the first terminal to transmit indication information to the second terminal.

[0173] The indication information is used to indicate relevant information of the failure of the direct link beam.

[0174] Among them, the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0175] The new through link beam information may specifically include: a new through link beam pointing direction, a new through link beam shape, a new through link beam weight, etc., and there is no limitation on this.

[0176] That is to say, in an embodiment of the present application, the first terminal sends relevant information indicating a direct link beam failure to the second terminal through a first channel, so that the second terminal can use a new beam to communicate in the direct link based on the new direct link beam information in the relevant information of the direct link beam failure, and / or the second terminal can promptly know whether there is a direct link beam failure based on the first information in the relevant information of the direct link beam failure.

[0177] Optionally, in some embodiments, the relevant information of the direct link beam failure also includes: second information, wherein the second information is used to indicate the existence of the direct link beam failure.

[0178] That is to say, in the embodiment of the present disclosure, the second terminal can directly learn of the existence of a direct link beam failure based on the second information in the relevant information of the direct link beam failure, so that the second terminal can promptly adopt methods such as changing the beam to avoid data transmission failure.

[0179] Among them, the first channel includes at least one of the following: a physical sidelink feedback channel (PSFCH) carrying relevant information about the failure of the sidelink beam; a new sequence-based physical sidelink beam failure indication channel (PSBFCH); a new type of physical sidelink feedback channel PSFCH.

[0180] In the disclosed embodiment, a new physical direct link beam failure indication channel PSBFCH and a physical direct link feedback channel PSFCH are configured independently of each other.

[0181] Among them, the physical direct link feedback channel PSFCH refers to the existing physical direct link feedback channel PSFCH, which does not carry relevant information about the direct link beam failure, and is different from the new type of physical direct link feedback channel PSFCH.

[0182] In an embodiment of the present disclosure, a second terminal receives indication information sent by a first terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure, thereby, the second terminal can promptly obtain the indication information used to indicate the direct link beam failure, so that the second terminal can consider the existence of the direct link beam failure in the direct link beam selection process based on the indication information, and re-establish the direct link data communication link according to the direct link beam failure information, thereby reducing the probability of data packet transmission failure caused by the direct link beam failure and improving the direct link data packet transmission success rate.

[0183] Fig.13 It is a structural diagram of a channel sending device proposed in an embodiment of the present application.

[0184] like Fig.13 As shown, the channel sending device 130 includes:

[0185] The sending unit 1401 is configured to control the first terminal to send indication information to the second terminal through the first channel, wherein the indication information is used to indicate relevant information of the failure of the direct link beam, and the first channel includes at least one of the following:

[0186] Physical direct link feedback channel PSFCH carrying information related to direct link beam failure;

[0187] New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH;

[0188] A new type of physical direct link feedback channel PSFCH;

[0189] Information about the failure of the through link beam includes at least one of the following:

[0190] New through link beam information;

[0191] First information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0192] In some embodiments of the present application, the related information of the through link beam failure further includes:

[0193] Second information, wherein the second information is used to indicate the existence of a direct link beam failure.

[0194] In some embodiments of the present application, it is characterized in that a new physical direct link beam failure indication channel PSBFCH and a physical direct link feedback channel PSFCH are configured independently of each other.

[0195] In some embodiments of the present application, it is characterized in that the physical direct link feedback channel PSFCH carries hybrid automatic repeat request confirmation HARQ ACK information, or carries relevant information of direct link beam failure, represented by different time domain resources and / or different frequency domain resources and / or different sequences and / or different cyclic shifts.

[0196] In some embodiments of the present application, it is characterized in that the first channel uses a first sequence and / or a first cyclic shift value to indicate that a beam failure exists in a direct link beam corresponding to the first channel.

[0197] In some embodiments of the present application, it is characterized in that the first channel uses different sequences or different cyclic shift values ​​of the same sequence to indicate whether there is a beam failure in the direct link beam corresponding to the first channel.

[0198] In some embodiments of the present application, it is characterized in that the first channel occupies one symbol or two symbols, wherein when occupying two symbols, the first channel is repeatedly sent based on the first symbol and the second symbol of the two symbols.

[0199] In some embodiments of the present application, it is characterized in that the direct link beam includes at least one of a physical direct link control channel PSCCH beam and a physical direct link shared channel PSSCH beam, and the type of direct link beam failure includes at least one of a physical direct link control channel PSCCH beam failure and a physical direct link shared channel PSSCH beam failure.

[0200] In some embodiments of the present application, it is characterized in that the resources occupied by the first channel correspond one-to-one to the new direct link beam information.

[0201] In some embodiments of the present application, it is characterized in that the channel sending device 130 further includes:

[0202] An establishing unit, used to establish a mapping relationship between resources occupied by the first channel and new direct link beam information;

[0203] The first indication unit is used for the first terminal to indicate new direct link beam information to the second terminal through the time domain and / or frequency domain resources of the first channel used.

[0204] In some embodiments of the present application, it is characterized in that the sending unit 1401 is further used to:

[0205] The first terminal sends a first channel to indicate that there is a direct link beam failure; or

[0206] The first terminal sends first information to the second terminal through a first channel, wherein the first information is used to indicate whether there is a direct link beam failure in at least one direct link beam.

[0207] In some embodiments of the present application, it is characterized in that the first information is used to indicate any of the following:

[0208] Indicates whether there is a direct link beam failure in a direct link beam, wherein if the first information includes a first value, it corresponds to indicating that there is a direct link beam failure in a direct link beam, and if the first information includes a second value, it corresponds to indicating that there is no direct link beam failure in a direct link beam;

[0209] Indicates whether there is a direct link beam failure in multiple direct link beams, wherein if the first information includes a first value, it corresponds to an indication that there is a direct link beam failure in at least one direct link beam, and if the first information includes a second value, it corresponds to an indication that there is no direct link beam failure in all direct link beams.

[0210] In some embodiments of the present application, it is characterized in that the channel sending device 130 further includes:

[0211] The second indication unit is used to indicate the type of direct link beam failure based on different sequence sets and / or different frequency domain resource sets used by the first channel.

[0212] In some embodiments of the present application, it is characterized in that the second indicating unit is further used for:

[0213] If the first channel uses a sequence in the first sequence set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link shared channel PSSCH beam failure;

[0214] If the first channel uses a sequence in the second sequence set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of direct link beam failure is a physical direct link control channel PSCCH beam failure, wherein the first sequence set and the second sequence set are orthogonal to each other.

[0215] In some embodiments of the present application, it is characterized in that the second indicating unit is further used for:

[0216] If the first channel uses frequency domain resources in the first frequency domain resource set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link shared channel PSSCH beam failure;

[0217] If the first channel uses frequency domain resources in the second frequency domain resource set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of direct link beam failure is physical direct link control channel PSCCH beam failure, wherein the first frequency domain resource set and the second frequency domain resource set are orthogonal to each other.

[0218] In some embodiments of the present application, the second channel is a physical direct link feedback channel PSFCH carrying hybrid automatic repeat request confirmation HARQ ACK information; wherein,

[0219] The frequency domain resource set occupied by the first channel is different from the frequency domain resource set occupied by the second channel; or,

[0220] The symbols occupied by the first channel and the symbols occupied by the second channel are different.

[0221] In some embodiments of the present application, it is characterized in that the channel sending device 130 further includes:

[0222] a determining unit, configured to calculate an index number of the first channel according to an index number of the first terminal and / or an index number of the second terminal; or

[0223] Determine the frequency domain resources of the first channel according to the index number of the first channel

[0224] In some embodiments of the present application, it is characterized in that the determining unit is further used to:

[0225] In the case of unicast or multicast option 1 where feedback of beam failure is required, the index number of the first channel is calculated using the layer 1 source identifier L1 source ID of the second terminal;

[0226] In case of multicast option 2 in which feedback is required on whether there is a beam failure, the index number of the first channel is calculated using the layer 1 source identifier L1source ID of the second terminal and the member identifier member ID of the first terminal.

[0227] In some embodiments of the present application, it is characterized in that the first channel and the second channel are multiplexed in the same frequency domain resource set, and the second channel is a physical direct link feedback channel PSFCH carrying hybrid automatic repeat request confirmation HARQ ACK information; wherein the index number of the first channel is calculated based on the first formula, and the first formula is:

[0228] First channel_Index=(K+M)Mod(L*Y);

[0229] Among them: K represents the truncated layer 2 source identifier L2 source ID carried in the direct link control information SCI associated with the direct link beam sent by the second terminal, the value of M is related to the mode of feedback of relevant information about the failure of the direct link beam, L represents the number of physical resource blocks PRB in the frequency domain resource set where the first channel is located, Y represents the number of cyclic shift pairs for feedback of relevant information about the failure of the direct link beam that can be carried in a physical resource block PRB, and the frequency domain resource set is a resource block RB set.

[0230] In some embodiments of the present application, it is characterized in that the value of M is related to the mode of feedback of relevant information of direct link beam failure, including:

[0231] When the feedback mode of the information related to the failure of the direct link beam is unicast, M takes the value of 0;

[0232] When the mode of feedback of information related to direct link beam failure is multicast feedback option 1, M takes the value of 0;

[0233] When the mode of feedback of the related information of the direct link beam failure is multicast feedback option 2, M is the multicast member ID of the first terminal.

[0234] In some embodiments of the present application, it is characterized in that the sending unit 1401 is further used to:

[0235] The first terminal sends first information to the second terminal through a new type of physical direct link feedback channel PSFCH, wherein the first information is used to indicate whether there is a direct link beam failure, and the resources used by the new type of physical direct link feedback channel PSFCH are PSFCH resources not used by terminals using multicast hybrid automatic repeat request option 2.

[0236] In some embodiments of the present application, it is characterized in that a new type of physical direct link feedback channel PSFCH is used to indicate whether the physical direct link shared channel PSSCH resources are correctly received and whether there is a direct link beam failure.

[0237] In some embodiments of the present application, it is characterized in that a new type of physical direct link feedback channel PSFCH carries two bits, one of the two bits indicates physical direct link shared channel PSSCH confirmation information or non-confirmation information, and the other bit indicates whether there is a direct link beam failure.

[0238] In some embodiments of the present application, it is characterized in that the channel sending device 130 further includes:

[0239] A first receiving unit is configured to receive an air interface signaling sent by a base station, wherein the air interface signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and related information of direct link beam failure; or

[0240] Receive direct link signaling sent by the second terminal, wherein the direct link signaling is used to indicate the priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and related information of direct link beam failure.

[0241] In some embodiments of the present application, it is characterized in that if the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, then the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information;

[0242] If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure.

[0243] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0244] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.

[0245] Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0246] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0247] In this embodiment, the first terminal sends indication information to the second terminal through the first channel, wherein the indication information is used to indicate relevant information of the direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure; second information, wherein the second information is used to indicate the existence of a direct link beam failure, thereby, the first terminal sends the indication information of the direct link beam failure to the second terminal through the first channel, so that the second terminal can consider the existence of the direct link beam failure in the direct link beam selection process, thereby reducing the probability of failure of transmission of the direct link positioning reference signal (Side link Positioning Reference Signal, SL PRS) due to direct link beam collision, and improving the direct link positioning accuracy.

[0248] Fig.14 It is a structural diagram of a channel sending device proposed in an embodiment of the present application.

[0249] like Fig.14 As shown, the channel sending device 140 includes:

[0250] The receiving unit 1401 is configured to control the second terminal to receive indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following:

[0251] Physical direct link feedback channel PSFCH carrying information related to direct link beam failure;

[0252] New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH;

[0253] A new type of physical direct link feedback channel PSFCH;

[0254] Information about the failure of the through link beam includes at least one of the following:

[0255] New through link beam information;

[0256] First information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0257] In some embodiments of the present application, it is characterized in that the relevant information of the through link beam failure further includes:

[0258] Second information, wherein the second information is used to indicate the existence of a direct link beam failure.

[0259] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0260] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.

[0261] Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0262] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0263] In this embodiment, the second terminal receives indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate relevant information of the direct link beam failure, and the first channel includes at least one of the following: a physical direct link feedback channel PSFCH carrying relevant information of the direct link beam failure; a new physical direct link beam failure indication channel PSBFCH based on a sequence; a new type of physical direct link feedback channel PSFCH; the relevant information of the direct link beam failure includes at least one of the following: new direct link beam information; first information, wherein the first information is used to indicate whether there is a direct link beam failure, thereby, the second terminal can promptly obtain the indication information used to indicate the direct link beam failure, so that the second terminal can consider the existence of the direct link beam failure in the direct link beam selection process based on the indication information, and re-establish the direct link data communication link according to the direct link beam failure information, thereby reducing the probability of data packet transmission failure caused by the direct link beam failure and improving the direct link data packet transmission success rate.

[0264] Fig.15 It is a structural diagram of a channel sending device proposed in another embodiment of the present application.

[0265] See also Fig.15 The channel sending device 150 includes a memory 1501, a transceiver 1502, a processor 1503 and a user interface 1504: the memory 1501 is used to store computer programs; the transceiver 1502 is used to send and receive data under the control of the processor 1503; the processor 1503 is used to read the computer program in the memory 1501 and perform the following operations:

[0266] The first terminal sends indication information to the second terminal through a first channel, where the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following:

[0267] Physical direct link feedback channel PSFCH carrying information related to direct link beam failure;

[0268] New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH;

[0269] A new type of physical direct link feedback channel PSFCH;

[0270] Information about the failure of the through link beam includes at least one of the following:

[0271] New through link beam information;

[0272] First information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0273] Among them, Fig.15 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1503 and various circuits of memory represented by memory 1501 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1502 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 1504 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0274] The processor 1503 is responsible for managing the bus architecture and general processing, and the memory 1501 can store data used by the processor 1503 when performing operations.

[0275] Optionally, the processor 1503 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0276] The processor calls the computer program stored in the memory to execute any method provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0277] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0278] Fig.16 It is a structural diagram of a channel sending device proposed in another embodiment of the present application.

[0279] See also Fig.16The channel sending device 160 includes a memory 1601, a transceiver 1602, a processor 1603 and a user interface 1604: the memory 1601 is used to store computer programs; the transceiver 1602 is used to send and receive data under the control of the processor 1603; the processor 1603 is used to read the computer program in the memory 1601 and perform the following operations:

[0280] The second terminal receives indication information sent by the first terminal through the first channel, where the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following:

[0281] Physical direct link feedback channel PSFCH carrying information related to direct link beam failure;

[0282] New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH;

[0283] A new type of physical direct link feedback channel PSFCH;

[0284] Information about the failure of the through link beam includes at least one of the following:

[0285] New through link beam information;

[0286] First information, wherein the first information is used to indicate whether there is a direct link beam failure.

[0287] Among them, Fig.16 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1603 and various circuits of memory represented by memory 1601 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1602 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 1604 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0288] The processor 1603 is responsible for managing the bus architecture and general processing, and the memory 1601 can store data used by the processor 1603 when performing operations.

[0289] Optionally, the processor 1603 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0290] The processor calls the computer program stored in the memory to execute any method provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0291] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0292] In order to implement the above embodiment, the embodiment of the present application proposes a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the channel sending method.

[0293] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0294] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0295] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0296] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0297] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0298] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0299] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0300] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0301] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0302] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0303] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0304] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0305] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A channel sending method, characterized in that: The method comprises: The first terminal sends indication information to the second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

2. The method according to claim 1, characterized in that The related information of the through link beam failure also includes: Second information, wherein the second information is used to indicate the existence of a direct link beam failure.

3. The method according to claim 1, characterized in that The new physical direct link beam failure indication channel PSBFCH and the physical direct link feedback channel PSFCH are configured independently of each other.

4. The method according to claim 3, characterized in that The physical direct link feedback channel PSFCH carries hybrid automatic repeat request confirmation HARQ ACK information, or carries relevant information about the failure of the direct link beam, by means of different time domain resources and / or different frequency domain resources and / or different sequences and / or different cyclic shifts.

5. The method according to claim 1, characterized in that The first channel uses a first sequence and / or a first cyclic shift value to indicate that a beam failure exists in a direct link beam corresponding to the first channel.

6. The method according to claim 1, characterized in that The first channel uses different sequences or different cyclic shift values ​​of the same sequence to indicate whether there is a beam failure in the direct link beam corresponding to the first channel.

7. The method according to claim 1, characterized in that The first channel occupies one symbol or two symbols, wherein when the first channel occupies two symbols, the first channel is repeatedly transmitted based on the first symbol and the second symbol of the two symbols.

8. The method according to claim 1, characterized in that The direct link beam includes at least one of a physical direct link control channel PSCCH beam and a physical direct link shared channel PSSCH beam, and the type of direct link beam failure includes at least one of a physical direct link control channel PSCCH beam failure and a physical direct link shared channel PSSCH beam failure.

9. The method according to claim 1, characterized in that The resources occupied by the first channel correspond one-to-one to the new direct link beam information.

10. The method according to claim 9, characterized in that The method further comprises: Establishing a mapping relationship between resources occupied by the first channel and the new direct link beam information; The first terminal indicates new direct link beam information to the second terminal by using time domain and / or frequency domain resources of the first channel.

11. The method according to any one of claims 1 to 10, characterized in that: The first terminal sending indication information to the second terminal through the first channel includes any one of the following: The first terminal sends the first channel to indicate that there is a direct link beam failure; The first terminal sends the first information to the second terminal through a first channel, wherein the first information is used to indicate whether there is a direct link beam failure in at least one direct link beam.

12. The method according to claim 1, characterized in that The first information is used to indicate any of the following: Indicate whether there is a direct link beam failure in a direct link beam, wherein if the first information includes a first value, it corresponds to indicating that there is a direct link beam failure in the direct link beam, and if the first information includes a second value, it corresponds to indicating that there is no direct link beam failure in the direct link beam; Indicates whether there is a direct link beam failure in multiple direct link beams, wherein if the first information includes a first value, it corresponds to an indication that there is a direct link beam failure in at least one direct link beam, and if the first information includes a second value, it corresponds to an indication that there is no direct link beam failure in all direct link beams.

13. The method according to any one of claims 1 to 10, characterized in that: The method further comprises: The type of direct link beam failure is indicated based on different sequence sets and / or different frequency domain resource sets used by the first channel.

14. The method according to claim 13, characterized in that Indicates the type of through link beam failure based on different sets of sequences, including: If the first channel uses a sequence in a first sequence set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link shared channel PSSCH beam failure; If the first channel uses a sequence in the second sequence set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link control channel PSCCH beam failure, wherein the first sequence set and the second sequence set are orthogonal to each other.

15. The method according to claim 13, characterized in that Indicates the type of direct link beam failure based on different frequency domain resource sets, including: If the first channel uses frequency domain resources in the first frequency domain resource set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link shared channel PSSCH beam failure; If the first channel uses frequency domain resources in the second frequency domain resource set, a direct link beam failure occurs in the direct link beam corresponding to the first channel, and the type of the direct link beam failure is a physical direct link control channel PSCCH beam failure, wherein the first frequency domain resource set and the second frequency domain resource set are orthogonal to each other.

16. The method according to any one of claims 1 to 10, characterized in that: The second channel is the physical direct link feedback channel PSFCH carrying hybrid automatic repeat request confirmation HARQ ACK information; wherein, The frequency domain resource set occupied by the first channel is different from the frequency domain resource set occupied by the second channel; or, The symbols occupied by the first channel and the symbols occupied by the second channel are different.

17. The method according to any one of claims 1 to 10, characterized in that: The method further comprises at least one of the following: Calculate the index number of the first channel according to the index number of the first terminal and / or the index number of the second terminal; According to the index number of the first channel, frequency domain resources of the first channel are determined.

18. The method according to claim 17, characterized in that The calculating the index number of the first channel according to the index number of the first terminal and / or the index number of the second terminal includes: In the case of unicast or multicast option 1 where feedback of beam failure is required, the index number of the first channel is calculated using the layer 1 source identifier L1 source ID of the second terminal; In case of multicast option 2 in which feedback is required as to whether there is a beam failure, the index number of the first channel is calculated using the layer 1 source identifier L1source ID of the second terminal and the member identifier member ID of the first terminal.

19. The method according to any one of claims 1 to 10, characterized in that: The first channel and the second channel are multiplexed in the same frequency domain resource set, and the second channel is a physical direct link feedback channel PSFCH carrying hybrid automatic repeat request confirmation HARQ ACK information; wherein the index number of the first channel is calculated based on a first formula, and the first formula is: First channel_Index=(K+M)Mod(L*Y); Among them: K represents the truncated layer 2 source identifier L2 source ID carried in the direct link control information SCI associated with the direct link beam sent by the second terminal, the value of M is related to the mode of feedback of the relevant information of the failure of the direct link beam, L represents the number of physical resource blocks PRB in the frequency domain resource set where the first channel is located, Y represents the number of cyclic shift pairs of the relevant information feedback of the failure of the direct link beam that can be carried in a physical resource block PRB, and the frequency domain resource set is a resource block RB set.

20. The method of claim 19, wherein: The value of M is related to the mode of feedback of the relevant information of the direct link beam failure, including: When the feedback mode of the related information of the direct link beam failure is unicast, the value of M is 0; When the mode of feedback of the related information of the through link beam failure is multicast feedback option 1, the value of M is 0; When the mode of feedback of the related information of the direct link beam failure is multicast feedback option 2, M is the multicast member ID of the first terminal.

21. The method according to any one of claims 1 to 10, characterized in that The first terminal sends indication information to the second terminal through the first channel, including: The first terminal sends first information to the second terminal via a new type of physical direct link feedback channel PSFCH, wherein the first information is used to indicate whether there is a direct link beam failure, and the resources used by the new type of physical direct link feedback channel PSFCH are PSFCH resources not used by terminals using multicast hybrid automatic repeat request option 2.

22. The method according to any one of claims 1 to 10, characterized in that The new type of physical direct link feedback channel PSFCH is used to indicate whether the physical direct link shared channel PSSCH resources are correctly received and whether there is a direct link beam failure.

23. The method of claim 22, wherein: The new type of physical direct link feedback channel PSFCH carries two bits, one of which indicates physical direct link shared channel PSSCH confirmation information or non-confirmation information, and the other bit indicates whether there is a direct link beam failure.

24. The method according to any one of claims 1 to 10, characterized in that The method further comprises any of the following: Receiving air interface signaling sent by a base station, wherein the air interface signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and relevant information of the direct link beam failure; Receive direct link signaling sent by the second terminal, wherein the direct link signaling is used to indicate a priority relationship between physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information and related information of the direct link beam failure.

25. The method of claim 24, wherein: in, If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is higher than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information; If the priority of the physical direct link shared channel PSSCH hybrid automatic repeat request confirmation HARQ ACK information is lower than the priority of the relevant information of the direct link beam failure, the new type of physical direct link feedback channel PSFCH is used to indicate the relevant information of the direct link beam failure.

26. A channel sending method, characterized in that: The method comprises: The second terminal receives indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

27. The method of claim 26, wherein: The related information of the through link beam failure also includes: Second information, wherein the second information is used to indicate the existence of a direct link beam failure.

28. A channel sending device, characterized in that: The device comprises: A sending unit, configured to control the first terminal to send indication information to the second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

29. A channel sending device, characterized in that: The device comprises: A receiving unit, configured to control the second terminal to receive indication information sent by the first terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

30. A channel sending device, characterized in that: The invention comprises a memory, a transceiver and a processor: the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: The first terminal sends indication information to the second terminal through a first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

31. A channel sending device, characterized in that: The invention comprises a memory, a transceiver and a processor: the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: The second terminal receives indication information sent by the first terminal through the first channel, wherein the indication information is used to indicate relevant information of a direct link beam failure, and the first channel includes at least one of the following: A physical direct link feedback channel PSFCH carrying information related to the direct link beam failure; New sequence-based Physical Direct Link Beam Failure Indicator Channel PSBFCH; A new type of physical direct link feedback channel PSFCH; The related information of the through link beam failure includes at least one of the following: New through link beam information; First information exists, wherein the first information is used to indicate whether there is a direct link beam failure.

32. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the channel sending method according to any one of claims 1 to 27.

Images