Beam scanning method and apparatus, and terminal

Abstract

The present application provides a beam scanning method and apparatus, and a terminal. The method is applied to a first terminal, and comprises: selecting a target beam scanning resource group from a first resource pool on the basis of configured or pre-configured information, wherein the number of beam scanning resources comprised in the target beam scanning resource group is related to M and N, M is the configured or pre-configured number of sending beam directions, and N is the configured or pre-configured number of receiving beam directions; and sending a beam scanning channel on the target beam scanning resource group.

Description

Beam scanning method, device and terminal

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202311734520.0 filed in China on December 15, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a beam scanning method, device and terminal. Background Art

[0004] Currently, cellular vehicle-to-everything (C-V2X) deployments primarily utilize the sub-6GHz (sub-6G) frequency band (Frequency Range 1, FR1). However, with the development of C-V2X, the sub-6G band is no longer able to meet the ultra-high throughput, ultra-high latency, and ultra-high reliability requirements of future vehicle networks. The millimeter wave (30-300GHz) frequency band (FR2) offers greater bandwidth and improved system performance, holding great potential for the connected vehicle.

[0005] Related technologies do not yet support sidelink (SL) millimeter wave communication technology. If millimeter wave communication technology is introduced into the sidelink, in order to ensure communication efficiency, data transmission needs to be carried out through directional beams. Therefore, it is necessary to introduce a beam management mechanism for the sidelink based on the specific characteristics and features of the sidelink technology. Summary of the Invention

[0006] The present application provides a beam scanning method, device and terminal, which solve the problem in the related art that the direct link does not support millimeter wave communication technology.

[0007] In a first aspect, an embodiment of the present application provides a beam scanning method, applied to a first terminal, including:

[0008] Selecting a target beam scanning resource group in the first resource pool according to the configuration or preconfiguration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam;

[0009] A beam scanning channel is sent on the target beam scanning resource group.

[0010] In a second aspect, an embodiment of the present application provides a beam scanning method, applied to a second terminal, including:

[0011] Determining, based on the configuration or preconfiguration information, a type of a beam scanning resource group in the first resource pool; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam;

[0012] The beam scanning channel sent by the first terminal is received according to the type of the beam scanning resource group.

[0013] In a third aspect, an embodiment of the present application provides a first terminal, comprising: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the beam scanning method described in the first aspect are implemented.

[0014] In a fourth aspect, an embodiment of the present application provides a second terminal, comprising: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the beam scanning method described in the second aspect are implemented.

[0015] In a fifth aspect, an embodiment of the present application provides a beam scanning device, applied to a first terminal, including:

[0016] a resource selection module, configured to select a target beam scanning resource group in a first resource pool according to configuration or preconfiguration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam and N is the number of directions of the configured or preconfigured receive beam;

[0017] The first sending module is configured to send a beam scanning channel on the target beam scanning resource group.

[0018] In a sixth aspect, an embodiment of the present application provides a beam scanning device, applied to a second terminal, including:

[0019] A first determining module is configured to determine a type of a beam scanning resource group in a first resource pool based on configuration or preconfiguration information; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, where M is the number of directions of a configured or preconfigured transmit beam, and N is the number of directions of a configured or preconfigured receive beam;

[0020] The second receiving module is configured to receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0021] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the beam scanning method as described in the first aspect or the second aspect.

[0022] The beneficial effects of the above technical solution of this application are:

[0023] In the above scheme, the first terminal selects a target beam scanning resource group in the first resource pool based on configuration or preconfiguration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam; and a beam scanning channel is transmitted on the target beam scanning resource group. The scheme of the present application proposes a new beam scanning scheme for millimeter wave communications on direct links, which can support beam pairing of terminals in the millimeter wave frequency band. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 shows a flow chart of a beam scanning method according to an embodiment of the present application;

[0025] FIG2 shows one structural diagram of a beam scanning channel according to an embodiment of the present application;

[0026] FIG3 shows a second structural diagram of a beam scanning channel according to an embodiment of the present application;

[0027] FIG4 shows a third structural diagram of a beam scanning channel according to an embodiment of the present application;

[0028] FIG5 shows a fourth structural diagram of a beam scanning channel according to an embodiment of the present application;

[0029] FIG6 shows a fifth structural diagram of a beam scanning channel according to an embodiment of the present application;

[0030] FIG7 shows a sixth structural diagram of a beam scanning channel according to an embodiment of the present application;

[0031] FIG8 shows a seventh structural diagram of a beam scanning channel according to an embodiment of the present application;

[0032] FIG9 shows an eighth structural diagram of a beam scanning channel according to an embodiment of the present application;

[0033] FIG10 shows one distribution diagram of a beam scanning resource group according to an embodiment of the present application;

[0034] FIG11 shows a second schematic diagram of the distribution of beam scanning resource groups according to an embodiment of the present application;

[0035] FIG12 shows a third schematic diagram of the distribution of beam scanning resource groups according to an embodiment of the present application;

[0036] FIG13 is a schematic diagram showing one of the beam scanning methods according to an embodiment of the present application;

[0037] FIG14 shows a second schematic diagram of the beam scanning method according to an embodiment of the present application;

[0038] FIG15 is a third schematic diagram showing the beam scanning method according to an embodiment of the present application;

[0039] FIG16 shows a fourth schematic diagram of the beam scanning method according to an embodiment of the present application;

[0040] FIG17 shows a fifth schematic diagram of the beam scanning method according to an embodiment of the present application;

[0041] FIG18 shows a sixth schematic diagram of the beam scanning method according to an embodiment of the present application;

[0042] FIG19 is a seventh schematic diagram showing a beam scanning method according to an embodiment of the present application;

[0043] FIG20 shows an eighth schematic diagram of the beam scanning method according to an embodiment of the present application;

[0044] FIG21 shows one of the time domain configuration diagrams of PSFCH resources according to an embodiment of the present application;

[0045] FIG22 shows a second schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0046] FIG23 shows a third schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0047] FIG24 shows a fourth schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0048] FIG25 shows a fifth schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0049] FIG26 shows a sixth schematic diagram of time domain configuration of PSFCH resources according to an embodiment of the present application;

[0050] FIG27 shows a seventh schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0051] FIG28 shows an eighth schematic diagram of the time domain configuration of PSFCH resources according to an embodiment of the present application;

[0052] FIG29 shows a ninth schematic diagram of a time domain configuration of PSFCH resources according to an embodiment of the present application;

[0053] FIG30 is a schematic diagram showing beam scanning resource exclusion according to an embodiment of the present application;

[0054] FIG31 shows a second flowchart of the beam scanning method according to an embodiment of the present application;

[0055] FIG32 shows one structural diagram of a beam scanning device according to an embodiment of the present application;

[0056] FIG33 shows a second structural diagram of the beam scanning device according to an embodiment of the present application;

[0057] FIG34 is a schematic diagram showing the hardware structure of a first terminal according to an embodiment of the present application;

[0058] FIG35 is a schematic diagram showing the hardware structure of the second terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and advantages to be solved by the present application clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0060] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0061] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0062] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0063] In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B based solely on A; B can also be determined based on A and / or other information.

[0064] The following describes the initial beam pairing process in the New Radio (NR) Uu.

[0065] During cell search and initial random access, the user equipment (UE) needs to synchronize downlink with the base station and receive system messages. The base station uses beam scanning technology to scan at a fixed period, sending synchronization signals and system message blocks (SSBs). The UE communicating with the base station receives SSBs on its corresponding beam to obtain downlink synchronization and system messages, and performs random access to send and receive various messages in the same beam direction. In addition to broadcast and access information, system messages, paging, and other information are also sent using beam scanning.

[0066] The initial beam pairing in NR Uu is based on SSB transmission and associated Physical Random Access Channel (PRACH) reporting. SSB is transmitted in different beam directions. The UE detects the SSB and measures the signal quality, reporting the measurement result and SSB resource index to the base station via the associated PRACH. The pairing rules for the SSB resource index and PRACH resource are predefined.

[0067] However, the related art vehicle networking communication technologies, Long Term Evolution Sidelink (LTE SL) and New Radio Sidelink (NR SL), are both omnidirectional communications. However, communications in the FR2 band require beamforming, and a solution needs to be designed to implement beam management in the sidelink communication. Due to the distributed communication characteristics and different reference signal structures of SL, the beam management technology in the Uu of the related art is not applicable. Therefore, it is necessary to design a beam management mechanism in SL communication to ensure that the sidelink devices can communicate via beams in FR2.

[0068] Specifically, the embodiments of the present application provide a beam scanning method, device, and terminal, which solve the problem in related technologies that direct links do not support millimeter wave communication technology.

[0069] First embodiment

[0070] As shown in FIG1 , an embodiment of the present application provides a beam scanning method, which is applied to a first terminal and may specifically include the following steps:

[0071] Step 101: Select a target beam scanning resource group in the first resource pool according to the configuration or pre-configuration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmitting beam, and N is the number of directions of the configured or pre-configured receiving beam.

[0072] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0073] Time domain configuration information of beam scanning resources;

[0074] Frequency domain configuration information of beam scanning resources;

[0075] The reservation period of beam scanning resources;

[0076] Sequence identifier (ID) information and sequence type information of the reference signal of the beam scanning channel;

[0077] The number of directions M in which the beam is transmitted;

[0078] The number of directions of the receiving beam N;

[0079] Beam scanning resource group ID set;

[0080] The time domain offset value of the beam scanning resource group;

[0081] Beam scanning mode indication;

[0082] Beam switching capability indication;

[0083] Configuration period of the physical direct link feedback channel PSFCH;

[0084] PSFCH configuration offset value;

[0085] frequency domain configuration information of the first resource pool;

[0086] Time domain configuration information of the first resource pool.

[0087] Optionally, the time domain configuration information of the beam scanning resource includes: time domain pattern information of the reference signal, or time domain pattern information of the physical direct link control channel, or time domain pattern information of the physical direct link shared channel; wherein, the time domain pattern information includes at least one of the following: time domain starting symbol position information and time domain symbol number information, and pattern information of the time domain symbol position occupied by the reference signal supported by the resource pool.

[0088] Optionally, the frequency domain configuration information of the beam scanning resource includes: frequency domain pattern information of the reference signal, or frequency domain pattern information of the physical direct link control channel, or frequency domain pattern information of the physical direct link shared channel; wherein the frequency domain pattern information includes at least one of the following: starting resource element (RE), comb size (comb size), comb offset (comb offset)), cyclic shift (Cyclic shift) or orthogonal cover code (OCC), frequency domain starting physical resource block (PRB) position, subchannel position information, number of PRBs occupied in the frequency domain, number of subchannels occupied in the frequency domain, and frequency domain shift information (i.e., the number of PRBs offset relative to the frequency domain reference point).

[0089] It should be pointed out that the configuration of the beam scanning resources in the configuration or pre-configuration information refers to the configuration of the beam scanning resources in the first resource pool.

[0090] It can be understood that the first resource pool includes multiple beam scanning resource groups, and the target beam scanning resource group is at least one of the multiple beam scanning resource groups.

[0091] The reference signal may be generated according to configured or preconfigured sequence ID information and sequence type information, or may also be generated according to information carried in a physical direct link control channel.

[0092] Step 102: Send a beam scanning channel on the target beam scanning resource group.

[0093] In the above embodiment, since the number of beam scanning resources included in the target beam scanning resource group is related to M and N, M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam. By transmitting a beam scanning channel on the target beam scanning resource group, beam scanning can be performed by the receiving end or the transmitting end. Beam scanning can support beam pairing of terminals in the millimeter wave frequency band and use directional beams for data transmission, which is applicable to millimeter wave communication technology for direct links.

[0094] In some embodiments, the beam scanning channel comprises:

[0095] Physical direct link control channel and reference signals; or

[0096] Physical direct link control channel, reference signal and physical direct link shared channel.

[0097] For example, when the beam scanning channel includes the physical sidelink control channel (PSCCH), the reference signal (RS), and the physical sidelink shared channel (PSSCH), the PSCCH, RS, and PSSCH in a time slot in the time domain are all sent in the same beam direction. In this case, a beam scanning resource is a time slot in the time domain, or there is only one beam scanning resource in a time slot. For example, as shown in Figures 2 and 3, the PSCCH and RS are multiplexed in time division multiplexing (TDM), and the beam scanning channel occupies L subchannels or L resource blocks (PRBs) in the frequency domain.

[0098] Exemplarily, when the beam scanning channel includes a PSCCH and an RS, the channel structure of the beam scanning channel may include:

[0099] Method 1: As shown in Figure 4, the PSCCH and RS in a time slot are multiplexed using time division multiplexing (TDM). The RS is multiplexed using TDM. Symbols within a time slot are divided into different RS resources. In the frequency domain, the beam scanning channel occupies L subchannels or L PRBs. The PSCCH is associated with the RS in the time slot, for example, RS1, RS2, RS3, RS4, and RS5 are associated with the PSCCH. Different RS resources in the time domain can be transmitted in different beam directions. In this case, the beam transmitting the PSCCH can be the same as or overlap the beam direction of the associated RS. Alternatively, all RS resources can be transmitted in the same beam direction. The beam transmitting the PSCCH can be the same as the beam direction of the associated RS.

[0100] Method 2: As shown in Figure 5, the PSCCH and RS are multiplexed in a time slot using TDM in the time domain, and frequency division multiplexing (FDM) in the frequency domain. RSs are multiplexed using both TDM and FDM. Symbols within a time slot are divided into different RS resources. Each RS resource occupies L subchannels or L PRBs in the frequency domain and is multiplexed in a comb-like manner. Different RS resources are associated with one PSCCH in the time domain. For example, RS1, RS2, RS3, and RS4 are associated with PSCCH1, and RS5, RS6, RS7, and RS8 are associated with PSCCH2. Different RS resources can be transmitted in different beam directions in the time domain. In this case, the PSCCH transmit beam is the same as or overlaps the transmit beam direction of the associated RS. Alternatively, all RS resources can be transmitted in the same beam direction. The PSCCH transmit beam can be the same as the transmit beam direction of the associated RS.

[0101] Method 3: As shown in Figure 6, for a mini-slot structure, a timeslot is divided into multiple mini-slots. Each mini-slot contains an automatic gain control (AGC) symbol, a PSCCH symbol, and an RS symbol. In the frequency domain, the beam-scanning channel occupies L subchannels or L PRBs. In the time domain, RS resources in different mini-slots can be transmitted in different beam directions. In this case, the PSCCH transmit beam and the associated RS transmit beam direction are the same. Alternatively, all beam-scanning channels in all mini-slots are transmitted in the same beam direction.

[0102] Method 4: As shown in Figure 7, for the mini-slot structure, a time slot is divided into multiple mini-slots. Each mini-slot contains AGC symbols, PSCCH symbols, and RS symbols. The PSCCH and RS are multiplexed in each mini-slot using TDM. In the frequency domain, PSCCH is multiplexed using frequency division multiplexing (FDM), and RS is multiplexed using FDM. In the frequency domain, each RS resource occupies L subchannels or L PRBs and is combo-multiplexed. Each PSCCH is associated with an RS, for example, PSCCH1 is associated with RS1, and PSCCH5 is associated with RS5. In the time domain, RS resources in different mini-slots can be transmitted in different beam directions. In this case, the transmit beam of the PSCCH can be the same as that of the associated RS. Alternatively, PSCCHs in different mini-slots and their associated RSs can be transmitted in the same beam direction.

[0103] Method 5: As shown in Figure 8, for the mini-slot structure, a timeslot is divided into multiple mini-slots. Each mini-slot contains an AGC symbol and symbols carrying the PSCCH and associated RS. In the frequency domain, the beam-scanning channel occupies L subchannels or L PRBs. Within each mini-slot, the PSCCH and associated RS are multiplexed using FDM. Beam-scanning channels in different mini-slots can be transmitted in different beam directions. In this case, the PSCCH transmit beam can be the same as the transmit beam direction of the associated RS. Alternatively, all beam-scanning channels in all mini-slots can be transmitted in the same beam direction.

[0104] Mode 6: Referring to Figure 9 , the PSCCH and RS are multiplexed using TDM+FDM, the PSCCH using FDM+TDM, and the RS using TDM or TDM+FDM. In the time domain, the symbols within a time slot are divided into different RS resources. In the frequency domain, each RS resource occupies L subchannels or L PRBs and is comb-multiplexed with the PSCCH. Different RS resources are associated with one PSCCH in the time domain, for example, RS1, RS2, RS3, and RS4 are associated with PSCCH1. Different symbols on RS resources in the time domain can be transmitted in different beam directions. In this case, the PSCCH's transmit beam can be the same as or overlap the transmit beam direction of the associated RS; alternatively, both the PSCCH and the associated RS can be transmitted in the same beam direction.

[0105] It should be pointed out that, in Figures 4 to 9, one RS resource in the time domain corresponds to one beam scanning resource in the time domain.

[0106] It should be noted that the number of time domain symbols, starting symbol position, and occupied time domain symbol position pattern of the RS in the time slot can be determined by configuration or pre-configuration information. The starting RE position, starting PRB position, number of occupied PRBs or subchannels, and comb mapping structure in the frequency domain are also determined by configuration or pre-configuration information.

[0107] In some embodiments, the physical direct link control channel and / or the physical direct link shared channel is used to carry at least one of the following information:

[0108] Source identification;

[0109] Purpose identification;

[0110] Application service information;

[0111] Application ID;

[0112] Beam scanning resource group ID;

[0113] Beam ID;

[0114] Time-frequency indication information;

[0115] Reference signal indication information;

[0116] Beam measurement assistance information.

[0117] In addition, the physical direct link control channel and / or the physical direct link shared channel can also be used to carry at least one of the following: zone identification (Zone ID), priority information, indicator bit, modulation and coding mode, modulation and coding strategy MCS table indication, hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) related information, and reserved bit (Reserve bit).

[0118] It should be noted that the above information in this embodiment is preferably carried by the physical direct link control channel, and the information that cannot be carried by the physical direct link control channel is carried by the physical direct link shared channel.

[0119] Optionally, the reference signal indication information includes at least one of the following:

[0120] Time domain position information of the reference signal;

[0121] Frequency domain configuration information of the reference signal;

[0122] The number of ports for the reference signal;

[0123] Sequence information of the reference signal.

[0124] The time domain location information of the reference signal includes at least one of the following:

[0125] Time domain pattern information of the reference signal;

[0126] Time domain starting symbol position information of the reference signal;

[0127] Time-domain symbol number information of the reference signal.

[0128] The frequency domain configuration information of the reference signal includes at least one of the following:

[0129] Frequency domain pattern information of the reference signal (such as starting RE, comb size, comb offset, cyclic shift / OCC);

[0130] Frequency domain starting PRB position information of the reference signal;

[0131] Frequency domain starting subchannel position information of the reference signal;

[0132] Information on the number of PRBs and / or subchannels occupied by the reference signal in the frequency domain;

[0133] Frequency domain shift information of the reference signal (i.e., the number of PRBs offset relative to the frequency domain reference point);

[0134] The beam measurement assistance information includes at least one of the following:

[0135] Beam index information; wherein, the beam index information can be indicated by a port indicator field of a reference signal, or a reference signal sequence indication, or a combination of a port and a sequence.

[0136] Beam number information; the beam number information includes: the total number of different beam directions represented by the sending reference signal (the total number of narrow beams corresponding to the current wide beam), and the total number of different beam directions for sending control channels (the total number of wide beams).

[0137] Beam resource indication information; wherein the beam resource indication information includes resource indication information reserved by the current device for all transmitting beams.

[0138] In some embodiments, the above method further comprises:

[0139] Determining, according to configuration or pre-configuration information, a type of beam scanning resource group included in the first resource pool;

[0140] The type of the beam scanning resource group is the first type or the second type;

[0141] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0142] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein X=ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

[0143] Among them, Ceil refers to rounding up.

[0144] It should be noted that the above-mentioned M×N time slots may be M×N time slots continuously used for beam scanning. Similarly, the X time slots may be time slots continuously used for beam scanning.

[0145] It should be noted that when M×N time slots or X time slots are continuous time slots, adjacent time slots for sending beam scanning channels may include time slots specifically used for beam reporting, such as PSFCH feedback time slots.

[0146] Optionally, X may also be other values, such as X=ceil(M / m)×N, or X=ceil(N / m)×M, or X=ceil(M / m)+ceil(N / m).

[0147] Specifically, the frequency domain positions of the beam scanning resources in the beam scanning resource group are the same, or the frequency domain positions are different.

[0148] Optionally, M×N time slots or X time slots include multiple orthogonal beam scanning resource groups.

[0149] For example, as shown in Figure 10, it is a schematic diagram showing a beam scanning resource group of the first type. Assuming that the high-level configuration or pre-configured parameters M and N are both 4, a beam scanning resource occupies one time slot in the time domain and one subchannel in the frequency domain. Each of the 16 time slots in the time domain includes one beam scanning resource, forming a beam scanning resource group (such as the resources marked with diagonal lines in Figure 10). Furthermore, the 16 time slots include multiple orthogonal beam scanning resource groups, and each beam scanning resource group can correspond to an ID. In Figure 10, the frequency domain positions of the beam scanning resources within a beam scanning resource group are the same.

[0150] Exemplarily, as shown in FIG11 , it shows a schematic diagram of a beam scanning resource group of the second type. Assuming that the high-level configuration or pre-configured parameters M and N are both 4, one time slot in the time domain is divided into four RS resources (i.e., m=4), one sub-channel is occupied in the frequency domain and there is no comb multiplexing. According to X=ceil(M*N / m), each of the four time slots in the time domain includes four beam scanning resources, forming a beam scanning resource group (such as the resources marked with diagonal lines in FIG11 ), and there are multiple orthogonal beam scanning resource groups in the further four time slots, and each beam scanning resource group can correspond to an ID. The frequency domain positions of the beam scanning resources in a beam scanning resource group in FIG11 are the same.

[0151] Exemplarily, as shown in FIG12 , it shows a schematic diagram of a beam scanning resource group of the second type. Assuming that the high-level configuration or pre-configured parameters M and N are both 4, one time slot in the time domain is divided into four RS resources (i.e., m=4), and one sub-channel is occupied in the frequency domain and comb multiplexed. According to X=ceil(M*N / m), there are four beam scanning resources in each of the four time slots in the time domain, forming a beam scanning resource group (such as the resources marked with diagonal lines in FIG12 ), and there are multiple orthogonal beam scanning resource groups in the further four time slots, and each beam scanning resource group can correspond to an ID. The frequency domain positions of the beam scanning resources in a beam scanning resource group in FIG12 are the same.

[0152] In addition, different beam scanning resource groups may have the same time domain location but different frequency domain locations. For example, in Figure 12, beam scanning resource group ID 1 and beam scanning resource group ID 2 have the same time domain resources and are comb-multiplexed on corresponding sub-channels in the frequency domain.

[0153] In some embodiments, the determining, based on configuration or pre-configuration information, the type of the beam scanning resource group included in the first resource pool includes:

[0154] Obtaining a beam switching capability indication according to the configuration or pre-configuration information;

[0155] When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group included in the first resource pool is of the first type;

[0156] When the beam switching capability indicates that the first terminal supports beam switching within a time slot, it is determined that the beam scanning resource group included in the first resource pool is the second type.

[0157] In specific implementation, when the beam switching capability indication information is the first value, the type of the beam scanning resource group is: a beam scanning resource is a time slot in the time domain or there is only one beam scanning channel resource in one time slot, and is determined in the frequency domain according to the frequency domain configuration information in the beam scanning resource configuration information; in this way, in M×N consecutive time slots used for beam scanning channels, there is one beam scanning resource in each time slot, and a total of M×N beam scanning resources constitute a beam scanning resource group; wherein, the time slot index (slot index) of the starting beam scanning resource of a beam scanning resource group is M×N×k or M×N×k+beam scanning resource group time domain offset value, and k is a non-negative integer.

[0158] In specific implementation, when the beam switching capability indication information is the second value, the beam scanning resource group is: a time slot in the time domain contains multiple beam scanning resources m, and the frequency domain is determined according to the frequency domain configuration information in the beam scanning channel resource configuration information; in this way, in X consecutive time slots used for the beam scanning channel, each time slot has m beam scanning resources (m resources are orthogonal in the time domain), and a total of X×m beam scanning resources constitute a beam scanning resource group. The slot index of the starting beam scanning channel resource of a beam scanning resource group is X×k or X×k+beam scanning resource group time domain offset value, and k is a non-negative integer.

[0159] In the above embodiment, since when the beam scanning resource group is of the first type, one beam scanning resource is included in one time slot and beam switching does not need to be performed in one time slot, when the beam switching capability indicates that the first terminal does not support beam switching in one time slot, the beam scanning resource group included in the first resource pool is determined to be of the first type. Similarly, since when the beam scanning resource group is of the second type, multiple beam scanning resources are included in one time slot and beam switching can be performed in one time slot, when the beam switching capability indicates that the first terminal supports beam switching in one time slot, the beam scanning resource group included in the first resource pool is determined to be of the second type.

[0160] In some embodiments, transmitting the beam scanning channel on the target beam scanning resource group includes:

[0161] When the target beam scanning resource group is of the first type, sending the beam scanning channel in a first manner or a second manner;

[0162] When the target beam scanning resource group is of the second type, sending the beam scanning channel in a third manner or a fourth manner;

[0163] The first mode is to divide the beam scanning resources on each of M consecutive time slots into a resource subset, and transmit the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0164] The second manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using the same beam direction to send the beam scanning channel on the beam scanning resources in each resource subset;

[0165] The third manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions to send the beam scanning channel or use different beam directions to send the reference signal in the beam scanning channel on the beam scanning resources in each resource subset;

[0166] The fourth method is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, using the same beam direction to send the beam scanning channel or using the same beam direction to send the reference signal in the beam scanning channel.

[0167] For example, refer to Figure 13, which shows a schematic diagram of a beam scanning resource group of the first type, in which a beam scanning channel is sent in the first manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, a3 and a4) are used to send the beam scanning channel; accordingly, on the second terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3 or b4) is used to receive the beam scanning channel.

[0168] For example, refer to Figure 14, which shows a schematic diagram of a beam scanning resource group of the first type and a beam scanning channel sent in the second manner. M and N are both 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, the beam scanning channel is sent using the same beam direction (a1, a2, a3 or a4); accordingly, on the second terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3 and b4) are used to receive the beam scanning channel.

[0169] Exemplarily, refer to Figure 15, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in a third manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, a3 and a4) are used to send the beam scanning channel or different beam directions are used to send the reference signal in the beam scanning channel; accordingly, on the second terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3 or b4) is used to receive the beam scanning channel.

[0170] For example, refer to Figure 16, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in the fourth manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (a1, a2, a3 or a4) is used to send the beam scanning channel or the reference signal in the beam scanning channel is sent using the same beam direction; accordingly, on the second terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3 and b4) are used to receive the beam scanning channel.

[0171] For example, refer to Figure 17, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in a third manner. M is 3, and N is 5, that is, the first terminal includes three transmitting beams a1, a2, and a3 in different directions, and the second terminal includes five receiving beams b1, b2, b3, b4, and b5 in different directions. On the first terminal side, every three consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, and a3) are used to send the beam scanning channel or different beam directions are used to send the reference signal in the beam scanning channel; accordingly, on the second terminal side, every three consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3, b4, or b5) is used to receive the beam scanning channel.

[0172] For example, refer to Figure 18, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in the fourth manner. M is 3, and N is 5, that is, the first terminal includes three transmitting beams a1, a2, and a3 in different directions, and the second terminal includes five receiving beams b1, b2, b3, b4, and b5 in different directions. On the first terminal side, every five consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (a1, a2, or a3) is used to send the beam scanning channel or the reference signal in the beam scanning channel is sent using the same beam direction; accordingly, on the second terminal side, every five consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3, b4, and b5) are used to receive the beam scanning channel.

[0173] It should be noted that the application of the last beam scanning resource position in Figures 17 and 18 depends on the UE implementation, for example, it can be used for the first terminal side to send a reference signal and / or the second terminal side to receive a reference signal and measure.

[0174] In some embodiments, the beam scanning method further includes:

[0175] When the beam-scanning channel is sent using the third manner, and the reference signal in the beam-scanning channel is sent using different beam directions on the beam-scanning resources in each resource subset, the beam of the physical direct link control channel for sending the beam-scanning channel in a timeslot includes the beam direction for sending the reference signal in the beam-scanning channel in the timeslot;

[0176] When the fourth method is adopted to send the beam scanning channel, and the reference signal in the beam scanning channel is sent using the same beam direction on the beam scanning resource in each resource subset, the beam of the physical direct link control channel for sending the beam scanning channel in a time slot includes the beam direction for sending the reference signal in the beam scanning channel in the time slot.

[0177] Exemplarily, for the beam scanning channel example shown in FIG4 , the beam for transmitting the PSCCH includes the beam directions for transmitting the reference signals RS1 , RS2 , RS3 , and RS4 .

[0178] In the above embodiment, by making the beam of the physical direct link control channel of the beam scanning channel include the beam direction of the reference signal in the beam scanning channel transmitted in the time slot, the receiving terminal can decode the PSCCH to obtain information related to the reference signal measurement and complete the beam measurement.

[0179] In some embodiments, the beam scanning method further includes:

[0180] In the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources on the M consecutive time slots;

[0181] In the first manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots;

[0182] In the third manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the M consecutive beam scanning resources;

[0183] In the third manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the M continuous beam scanning resources.

[0184] In the second or fourth manner, if the number of beam directions supported by the first terminal is greater than or equal to M, different beam directions are used between different resource subsets;

[0185] In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is less than M, the number of beam directions supported by the first terminal is traversed and used at least between different resource subsets.

[0186] For example, with respect to FIG13 , if the high-level configuration or pre-configured M and N are 4, on the first terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset. If the first terminal supports 4 beam scanning directions (a1, a2, a3, and a4), a1, a2, a3, and a4 correspond one-to-one to the 4 beam scanning resources in a resource subset; if the first terminal supports 3 beam scanning directions (a1, a2, and a3), a1, a2, a3, and a1 correspond one-to-one to the 4 beam scanning resources in a resource subset, or a1, a2, a3, and a2 correspond one-to-one to the 4 beam scanning resources in a resource subset, or a1, a2, a3, and a3 correspond one-to-one to the 4 beam scanning resources in a resource subset, or a1, a2, a3, and a3 correspond one-to-one to the 3 beam scanning resources in a resource subset (one beam scanning resource does not send a beam scanning channel).

[0187] In the above embodiment, when the number of beams supported by the first terminal is less than the number M of directions of transmitting beams configured by a higher layer or pre-configured, at least the beams supported by the first terminal are traversed.

[0188] In some embodiments, when the target beam scanning resource group is of the first type, sending the beam scanning channel in the first manner or the second manner includes:

[0189] Obtaining a beam scanning mode indication according to the configuration or pre-configuration information;

[0190] In a case where the target beam scanning resource group is of the first type, if the beam scanning mode indicates sending beam scanning, sending the beam scanning channel in the first mode;

[0191] In a case where the target beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is sent in a second mode.

[0192] In specific implementation, when the beam scanning resource group is of the first type, when the beam scanning mode indication is the third value, it indicates sending beam scanning, and the beam scanning channel is sent in the first mode; when the beam scanning mode indication is the fourth value, it indicates sending beam scanning, and the beam scanning channel is sent in the second mode.

[0193] In some embodiments, when the target beam scanning resource group is of the second type, sending the beam scanning channel in the third manner or the fourth manner includes:

[0194] Obtaining a beam scanning mode indication according to the configuration or pre-configuration information;

[0195] In a case where the target beam scanning resource group is of the second type, if the beam scanning mode indicates sending beam scanning, sending the beam scanning channel using the third mode;

[0196] In a case where the target beam scanning resource group is of the second type, if the beam scanning mode indicates receive beam scanning, the beam scanning channel is sent using the fourth mode.

[0197] In specific implementation, when the beam scanning resource group is of the second type, when the beam scanning mode indication is the third value, it indicates sending beam scanning, and the beam scanning channel is sent in the third mode; when the beam scanning mode indication is the fourth value, it indicates sending beam scanning, and the beam scanning channel is sent in the fourth mode.

[0198] In some embodiments, the method further comprises:

[0199] Determining, according to configuration or pre-configuration information, a type of beam scanning resource group included in the first resource pool;

[0200] The type of the beam scanning resource group is the third type or the fourth type;

[0201] The third type is: the beam scanning resource group includes M+N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0202] The fourth type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein, X=ceil(M / m)+ceil(N / m), m is determined according to the time domain configuration information of the beam scanning resource.

[0203] Wherein, Ceil points to the integer above, and M, N, X, and m are positive integers.

[0204] It should be noted that the above-mentioned M+N time slots may be M+N continuous time slots, or may also be M+N discrete time slots; similarly, the X time slots may be continuous time slots, or may also be X discrete time slots.

[0205] It should be noted that when M+N time slots or X time slots are continuous time slots, adjacent time slots for sending beam scanning channels may include time slots specifically used for beam reporting, such as PSFCH feedback time slots.

[0206] In specific implementations, for the third type, the high-level configuration or preconfigured parameters are M and N. A beam scanning resource occupies one time slot in the time domain, and M+N consecutive beam scanning resources in the time domain constitute a beam scanning resource group. Optionally, the M+N time slots can include multiple orthogonal beam scanning resource groups, each with an ID.

[0207] Exemplarily, as shown in FIG19 , the high-level configuration or pre-configuration M and N are both 4, and M+N=8 continuous beam scanning resources in the time domain constitute a beam scanning resource group.

[0208] In specific implementation, for the fourth type, the high-level configuration or pre-configured parameters are M and N. In the time domain, a time slot contains m beam scanning resources, and ceil(M / m) + ceil(N / m) consecutive beam scanning resources in the time domain constitute a beam scanning resource group. Optionally, the ceil(M / m) + ceil(N / m) time slots include multiple orthogonal beam scanning resource groups, each corresponding to an ID.

[0209] For example, as shown in Figure 20, the high-level configuration or pre-configured parameters M and N are both 4, a time slot in the time domain contains 4 beam scanning resources, and ceil(M / m)+ceil(N / m)=1+1=2 continuous beam scanning resources in the time domain constitute a beam scanning resource group.

[0210] In some embodiments, the sending of the beam scanning channel on the target beam scanning resource group includes:

[0211] When the target beam scanning resource group is of the third type, sending the beam scanning channel using mode A;

[0212] When the target beam scanning resource group is of the fourth type, sending the beam scanning channel using mode B;

[0213] Method A is as follows: on the first N beam scanning resources in the beam scanning resource group, a wide beam or an omnidirectional beam is used to transmit a beam scanning channel. On the last M beam scanning resources in the beam scanning resource group, different beam directions are used to transmit the beam scanning channel; if the number of beam directions supported by the first terminal is greater than or equal to M, the beam scanning channel is transmitted using beams in M ​​different directions supported by the first terminal; if the number of beam directions supported by the first terminal is less than M, at least the number of beam directions supported by the first terminal is traversed when transmitting the beam scanning channel;

[0214] Method B is as follows: on the first N beam scanning resources in the first ceil (N / m) time slots within the beam scanning resource group, a wide beam or an omnidirectional beam is used to transmit the beam scanning channel. On the first M beam scanning resources in the last ceil (M / m) time slots within the beam scanning resource group, different beam directions are used to transmit the beam scanning channel; if the number of beam directions supported by the first terminal is greater than or equal to M, the beam scanning channel is transmitted using beams in M ​​different directions supported by the second terminal; if the number of beam directions supported by the first terminal is less than M, at least the number of beams supported by the first terminal is traversed when transmitting the beam scanning channel.

[0215] Accordingly, when the beam scanning resource group is of the third type, the second terminal adopts mode C to receive the beam scanning channel; when the beam scanning resource group is of the fourth type, the second terminal adopts mode D to receive the beam scanning channel;

[0216] Among them, method C is:

[0217] The second terminal receives the beam-scanning channel using different beam directions on the first N beam-scanning resources in the beam-scanning resource group; if the number of beam directions supported by the second terminal is greater than or equal to N, the second terminal receives the beam-scanning channel using N different beam directions; if the number of beam directions supported by the second terminal is less than N, at least the number of beam directions supported by the second terminal is traversed when receiving the beam-scanning channel;

[0218] The second terminal determines, based on the receive beam measurements in the first N beam scanning resources, a receive beam having a maximum RSRP measurement value of a reference signal received by the second terminal, as the first target receive beam;

[0219] The second terminal receives the beam scanning channel using the first target receiving beam on the last M beam scanning resources in the beam scanning resource group;

[0220] Among them, method D is:

[0221] The second terminal receives the beam-scanning channel using different beam directions on the first N beam-scanning resources in the first ceil(N / m) time slots in the beam-scanning resource group. If the number of beams supported by the second terminal is greater than or equal to N, beams in N different directions are used to receive the beam-scanning channel. If the number of beam directions supported by the second terminal is less than N, at least the number of beam directions supported by the second terminal is traversed when receiving the beam-scanning channel. N and m are positive integers.

[0222] The second terminal determines, based on the receive beam measurements in the first N beam scanning resources in the first ceil(N / m) time slots, that the receive beam with the largest RSRP measurement value of the reference signal received by the second terminal is the second target receive beam;

[0223] The second terminal receives the beam scanning channel using the second target receiving beam on the first M beam scanning resources in the last ceil (N / m) time slots in the beam scanning resource group.

[0224] For example, as shown in Figure 19, the high-level configuration or pre-configuration M and N are 4, and M+N=8 continuous beam scanning resources in the time domain constitute a beam scanning resource group. That is, the beam scanning resource group is of the third type. The four beams of the first terminal are a1 to a4, and the four beams of the second terminal are b1 to b4. a0 is an omnidirectional beam or a wide beam of the first terminal, and b1 is the first target receiving beam determined by the second terminal. The M beams supported by the first terminal do not include a0. On the first four beam scanning resources in the beam scanning resource group, a wide beam or omnidirectional beam a0 is used to transmit the beam scanning channel; on the last four beam scanning resources in the beam scanning resource group, different beam directions (a1 to a4) are used to transmit the beam scanning channel.

[0225] Correspondingly, the second terminal uses different beam directions to receive the beam scanning channel on the first four beam scanning resources in the beam scanning resource group; determines beam b1 as the first target receiving beam based on the receiving beam measurement in the first four beam scanning resources; and uses beam b1 to receive the beam scanning channel on the last four beam scanning resources in the beam scanning resource group.

[0226] For example, as shown in Figure 20, the high-level configuration or pre-configuration M and N are 4. In the time domain, one time slot contains four beam scanning resources. In the time domain, two (i.e., ceil(M / m) + ceil(N / m) = 1 + 1 = 2) consecutive beam scanning resources constitute a beam scanning resource group, i.e., the beam scanning resource group is of the fourth type. The four beams of the first terminal are a1 to a4, and the four beams of the second terminal are b1 to b4. a0 is an omnidirectional beam or a wide beam of the first terminal, and b1 is the second target receiving beam determined by the second terminal. The M beams supported by the first terminal do not include a0. On the first four beam scanning resources in the first time slot within the beam scanning resource group, a wide beam or omnidirectional beam a0 is used to transmit the beam scanning channel. On the first four beam scanning resources in the second time slot within the beam scanning resource group, different beam directions (a1 to a4) are used to transmit the beam scanning channel.

[0227] Correspondingly, the second terminal uses different beam directions to receive the beam scanning channel on the first four beam scanning resources in the first time slot within the beam scanning resource group; determines beam b1 as the second target receiving beam based on the receiving beam measurement in the first four beam scanning resources in the first time slot; and uses beam b1 to receive the beam scanning channel on the first four beam scanning resources in the last time slot within the beam scanning resource group.

[0228] In some embodiments, selecting a target beam scanning resource group in the first resource pool according to configuration or pre-configuration information includes:

[0229] Excluding the first beam scanning resource group from the set of candidate beam scanning resource groups included in the first resource pool according to the configuration or pre-configuration information and the perception information, to obtain an available set of candidate beam scanning resource groups;

[0230] A target beam scanning resource group is selected based on a set of available candidate beam scanning resource groups.

[0231] The perception information includes at least one of the following:

[0232] frequency domain information of the beam scanning resources occupied by the third terminal;

[0233] time domain information of the beam scanning resources occupied by the third terminal;

[0234] a transmission priority value of the beam scanning channel sent by the third terminal;

[0235] The beam scanning resource group ID occupied by the third terminal;

[0236] a reservation period of the beam scanning resources of the third terminal;

[0237] A reference signal received power (RSRP) measurement value of the reference signal sent by the third terminal.

[0238] In some embodiments, the first beam scanning resource group satisfies the following conditions:

[0239] The first beam scanning resource group or the resource group that is periodically reserved with the first beam scanning resource group overlaps with the second beam scanning resource group; the second beam scanning resource group includes: the beam scanning resource group occupied by the third terminal or the resource group that is periodically reserved with the beam scanning resource group occupied by the third terminal;

[0240] The third terminal satisfies at least one of the following conditions:

[0241] A maximum RSRP measurement value among the reference signal RSRP measurement values ​​sent by the third terminal in the occupied beam scanning resource group is higher than a first threshold value;

[0242] The transmission priority value of the beam scanning channel sent by the third terminal is greater than the transmission priority value of the beam scanning channel of the first terminal.

[0243] In specific implementation, referring to FIG30 , the resource selection window and the perception window in the time domain include an integer number of beam scanning resource groups, and the set of all beam scanning resource groups in the resource selection window is a candidate beam scanning resource group set. The first terminal uses different receiving beams to perform beam measurement in the perception window to obtain perception information, decodes to obtain the time-frequency position and period of the beam scanning resource group occupied by the third terminal, and obtains the measured value RSRP (arbitrary beam ai and beam bi) between the receiving beam of the first terminal and any beam pair in the transmitting beam of the third terminal. If the first beam scanning resource group overlaps with the second beam scanning resource group corresponding to the third terminal, or if the resource group that is periodically reserved with the first beam scanning resource group overlaps with the second beam scanning resource group corresponding to the third terminal, and the maximum RSRP value among the RSRP values ​​measured for the arbitrary beam pair ai and bi is higher than the first threshold value, then the first terminal excludes the first beam scanning resource group from the candidate beam scanning resource group set.

[0244] It should be pointed out that the reservation period of the resource group that is periodically reserved with the first beam scanning resource group is the beam scanning resource reservation period of the first terminal; the reservation period of the resource group that is periodically reserved with the second beam scanning resource group is the beam scanning resource reservation period of the third terminal.

[0245] In some embodiments, after transmitting the beam-scanning channel on the beam-scanning resource group, the method further includes:

[0246] Receive, using the first beam, a beam measurement report sent by the second terminal on a physical direct link feedback channel (PSFCH) time domain resource corresponding to the beam scanning resource in the beam scanning resource group;

[0247] In which, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, the beam scanning resources in each resource subset correspond to a PSFCH time domain resource, and the first beam is the beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource; or every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, a PSFCH time domain resource corresponds to a beam scanning resource in each resource subset, and the first beam includes the beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource.

[0248] Optionally, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0249] Specifically, the PSFCH resource time domain configuration method includes:

[0250] A PSFCH time domain resource can be configured on the last few symbols of a time slot;

[0251] A time slot is divided into multiple PSFCH time domain resources.

[0252] In a specific implementation, a method for determining the time domain position of the PSFCH in each beam scanning resource group includes at least one of the following:

[0253] The offset value is related to the PSFCH configuration and M. Each of the M PSFCH resources has an offset value.

[0254] The offset value is related to the PSFCH configuration and M. There are M PSFCH resources in consecutive time slots, and the first resource of the M PSFCH resources is determined by the offset value.

[0255] Related to the PSFCH configuration offset value, M and PSFCH interval, the first resource of the M PSFCH resources has an offset value, and the other PSFCH resources differ from the first resource by an integer number of PSFCH intervals.

[0256] For example, refer to Figure 21, which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 13. As shown in Figure 21, assuming that the offset value of the PSFCH configuration is 4 time slots, there is a PSFCH time domain resource in each of the M time slots (M is 4 in Figure 13) starting from the 5th time slot corresponding to each beam scanning resource group, which respectively corresponds to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in Figure 21, every M time slot resources in a beam scanning resource group in the time domain are a resource subset, and the first resource in each resource subset, a total of N resources, corresponds to PSFCH1 in the next beam scanning resource group. Similarly, the second resource in each resource subset, a total of N resources (N is 4 in Figure 13), corresponds to PSFCH2 in the next beam scanning resource group, and so on.

[0257] For example, refer to Figure 22, which shows another schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 13. As shown in Figure 22, assuming that the offset value of the PSFCH configuration is 4 time slots, there are one or more time slots starting from the 5th time slot corresponding to each beam scanning resource group. These time slots contain at least M (M is 4 in Figure 13) PSFCH time domain resources, which respectively correspond to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in Figure 22, every M time slot resources in a beam scanning resource group in the time domain are a resource subset. The first resource of each resource subset, a total of N (N is 4 in Figure 13), corresponds to PSFCH1 in the next beam scanning resource group. Similarly, the second resource of each resource subset, a total of N resources, corresponds to PSFCH2 in the next beam scanning resource group, and so on.

[0258] For example, see Figure 23, which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 14. As shown in Figure 23, assuming that the offset value of the PSFCH configuration is 4 time slots, each beam scanning resource group corresponds to a PSFCH time domain resource in each of the 4 time slots starting from the 5th slot, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in Figure 23, the 4 time slot resources in a beam scanning resource group in the time domain are a resource subset, the first resource subset corresponds to PSFCH1 in the next beam scanning resource group, and similarly, the second resource subset corresponds to PSFCH2 in the next beam scanning resource group, and so on.

[0259] For example, see Figure 24, which shows another schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 14. As shown in Figure 24, assuming that the offset value of the PSFCH configuration is 4 time slots, there are one or more time slots starting from the 5th slot corresponding to each beam scanning resource group. These time slots contain at least M PSFCH time domain resources, which respectively correspond to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in the figure below, every N time slot resources in a beam scanning resource group in the time domain constitute a resource subset. The beam scanning resources in the first resource subset correspond to PSFCH1 in the next beam scanning resource group. Similarly, the beam scanning resources in the second resource subset correspond to PSFCH2 in the next beam scanning resource group, and so on.

[0260] For example, refer to Figure 25, which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 15. As shown in Figure 25, assuming that the offset value of the PSFCH configuration is one time slot, there are one or more time slots starting from the second slot corresponding to each beam scanning resource group. These time slots contain at least M PSFCH time domain resources, which respectively correspond to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in Figure 25, every M (M in Figure 15 is 4) beam scanning resources in a beam scanning resource group in the time domain are a resource subset. The first resource of each resource subset, a total of N (N in Figure 15 is 4) resources, corresponds to PSFCH1 in the next beam scanning resource group. Similarly, the second resource of each resource subset, a total of N resources, corresponds to PSFCH2 in the next beam scanning resource group, and so on.

[0261] For example, see Figure 26, which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 16. As shown in Figure 26, assuming that the offset value of the PSFCH configuration is one time slot, there are one or more time slots starting from the second slot of each beam scanning resource group. These time slots contain at least M PSFCH time domain resources, which respectively correspond to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrows in Figure 26, every N (here N=4) beam scanning resources in a beam scanning resource group in the time domain are a resource subset. The beam scanning resources in the first resource subset correspond to PSFCH1 in the next beam scanning resource group. Similarly, the beam scanning resources in the second resource subset correspond to PSFCH2 in the next beam scanning resource group, and so on.

[0262] It should be pointed out that when the beam scanning resource group is of the third type, the last M beam scanning resources in the beam scanning resource group correspond to a PSFCH time domain resource respectively, and these PSFCH resources are the PSFCH time domain resources in the next beam scanning resource group.

[0263] Correspondingly, the second terminal sends a beam report on the PSFCH corresponding to the target beam scanning resource among the last M beam scanning resources; wherein, the RSRP measurement value of the reference signal of the beam scanning channel received by the second terminal on the target beam scanning resource is the highest and higher than a threshold, or the RSRP measurement value of the reference signal of the beam scanning channel received by the second terminal on the target beam scanning resource is higher than a threshold.

[0264] For example, see FIG27 , which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in FIG18 . As shown in FIG27 , assuming that the offset value of the PSFCH configuration is 4 time slots, there is one PSFCH time domain resource in each of the M (here M=4) time slots starting from the 5th time slot corresponding to each beam scanning resource group. The first / second / third / fourth resources of the last M (here M=4) beam scanning resources in the beam scanning resource group indicated by the arrows in FIG27 correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH3 / PSFCH4 in the next beam scanning resource group, respectively.

[0265] For example, refer to FIG28 , which shows another schematic diagram of the PSFCH time domain position for the embodiment shown in FIG18 . As shown in FIG28 , assuming that the offset value of the PSFCH configuration is 4 time slots, there are one or more time slots starting from the 5th time slot corresponding to each beam scanning resource group, and these time slots contain at least M (here M=4) PSFCH time domain resources. The first / second / third / fourth resources of the last M (here M=4) beam scanning resources in the beam scanning resource group indicated by the arrows in FIG28 correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH 3 / PSFCH 4 in the next beam scanning resource group, respectively.

[0266] It should be pointed out that when the beam scanning resource group is of the fourth type, the first M beam scanning resources on the last ceil (M / m) time slots in the beam scanning resource group respectively correspond to a PSFCH time domain resource, and the PSFCH resource is the PSFCH resource in the next beam scanning resource group.

[0267] Correspondingly, the second terminal sends a beam report on the PSFCH corresponding to the target beam scanning resource among the first M (here M=4) beam scanning resources in the last ceil(M / m) time slots; wherein, the reference signal RSRP measurement value of the beam scanning channel received by the second terminal on the target beam scanning resource is the highest and higher than a threshold, or the reference signal RSRP measurement value of the beam scanning channel received by the second terminal on the target beam scanning resource is higher than a threshold.

[0268] For example, refer to Figure 29, which shows another schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 19. As shown in Figure 29, assuming that the PSFCH configuration offset value is 1, there are one or more time slots starting from the second slot (offset value 1+ceil(N / m)) corresponding to each beam scanning resource group, and these time slots contain at least M PSFCH time domain resources. The first / second / third / fourth resources of the first M beam scanning resources on the last ceil(M / m) time slots in the beam scanning resource group indicated by the arrows in Figure 29 correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH3 / PSFCH4 in the next beam scanning resource group, respectively.

[0269] Second embodiment

[0270] As shown in FIG31 , the second embodiment of the present application provides a beam scanning method, which is applied to a second terminal and specifically includes the following steps:

[0271] Step 201: Determine the type of the beam scanning resource group in the first resource pool based on the configuration or pre-configuration information; wherein, the number of beam scanning resources included in the beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmitting beam, and N is the number of directions of the configured or pre-configured receiving beam.

[0272] Step 202: Receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0273] In the above embodiment, since the number of beam scanning resources included in the target beam scanning resource group is related to M and N, M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam. By transmitting a beam scanning channel on the target beam scanning resource group by the first terminal, beam scanning can be performed by the second terminal or the first terminal. Beam scanning can support beam pairing of terminals in the millimeter wave frequency band and use directional beams for data transmission, which is applicable to millimeter wave communication technology for direct links.

[0274] It should be pointed out that the second embodiment of the present application is a counterpart claim corresponding to the first embodiment. The above explanations and descriptions on the first terminal side are applicable to the second terminal. To avoid repetition, they will not be repeated here.

[0275] In some embodiments, the configuration or pre-configuration information includes at least one of the following:

[0276] Time domain configuration information of beam scanning resources;

[0277] Frequency domain configuration information of beam scanning resources;

[0278] The reservation period of beam scanning resources;

[0279] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0280] The number of directions M in which the beam is transmitted;

[0281] The number of directions of the receiving beam N;

[0282] Beam scanning resource group ID set;

[0283] The time domain offset value of the beam scanning resource group;

[0284] Beam scanning mode indication;

[0285] Beam switching capability indication;

[0286] Configuration period of the physical direct link feedback channel PSFCH;

[0287] PSFCH configuration offset value;

[0288] frequency domain configuration information of the first resource pool;

[0289] Time domain configuration information of the first resource pool.

[0290] In some embodiments, the beam scanning resource group is one of the following types:

[0291] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0292] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein, X=ceil(M×N / m), m is determined according to the time domain configuration information of the beam scanning resource.

[0293] In some embodiments, determining the type of the beam scanning resource group in the first resource pool according to the configuration or pre-configuration information includes:

[0294] Obtaining a beam switching capability indication based on configuration or pre-configuration information;

[0295] When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group is the first type;

[0296] When the beam switching capability indicates that the first terminal supports beam switching within a time slot, the beam scanning resource group is determined to be the second type.

[0297] In some embodiments, the receiving, according to the type of the beam scanning resource group, the beam scanning channel sent by the first terminal includes:

[0298] When the beam scanning resource group is of the first type, receiving the beam scanning channel in the fifth manner or the sixth manner;

[0299] When the beam scanning resource group is of the second type, receiving the beam scanning channel in the seventh manner or the eighth manner;

[0300] The fifth manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0301] The sixth manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel;

[0302] The seventh manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0303] The eighth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel.

[0304] For example, refer to Figure 13, which shows a schematic diagram of a beam scanning resource group of the first type, in which a beam scanning channel is sent in the first manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, a3 and a4) are used to send the beam scanning channel; accordingly, on the second terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3 or b4) is used to receive the beam scanning channel.

[0305] For example, refer to Figure 14, which shows a schematic diagram of a beam scanning resource group of the first type and a beam scanning channel sent in the second manner. M and N are both 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, the beam scanning channel is sent using the same beam direction (a1, a2, a3 or a4); accordingly, on the second terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3 and b4) are used to receive the beam scanning channel.

[0306] Exemplarily, refer to Figure 15, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in a third manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, a3 and a4) are used to send the beam scanning channel or different beam directions are used to send the reference signal in the beam scanning channel; accordingly, on the second terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3 or b4) is used to receive the beam scanning channel.

[0307] For example, refer to Figure 16, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in the fourth manner. Both M and N are 4, that is, the first terminal includes four transmitting beams a1, a2, a3 and a4 in different directions, and the second terminal includes four receiving beams b1, b2, b3 and b4 in different directions. On the first terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (a1, a2, a3 or a4) is used to send the beam scanning channel or the reference signal in the beam scanning channel is sent using the same beam direction; accordingly, on the second terminal side, every four consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3 and b4) are used to receive the beam scanning channel.

[0308] For example, refer to Figure 17, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in a third manner. M is 3, and N is 5, that is, the first terminal includes three transmitting beams a1, a2, and a3 in different directions, and the second terminal includes five receiving beams b1, b2, b3, b4, and b5 in different directions. On the first terminal side, every three consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (a1, a2, and a3) are used to send the beam scanning channel or different beam directions are used to send the reference signal in the beam scanning channel; accordingly, on the second terminal side, every three consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (b1, b2, b3, b4, or b5) is used to receive the beam scanning channel.

[0309] For example, refer to Figure 18, which shows a schematic diagram of a beam scanning resource group of the second type, in which a beam scanning channel is sent in the fourth manner. M is 3, and N is 5, that is, the first terminal includes three transmitting beams a1, a2, and a3 in different directions, and the second terminal includes five receiving beams b1, b2, b3, b4, and b5 in different directions. On the first terminal side, every five consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, the same beam direction (a1, a2, or a3) is used to send the beam scanning channel or the reference signal in the beam scanning channel is sent using the same beam direction; accordingly, on the second terminal side, every five consecutive beam scanning resources in the time domain are divided into a resource subset, and on the beam scanning resources in each resource subset, different beam directions (b1, b2, b3, b4, and b5) are used to receive the beam scanning channel.

[0310] In some embodiments, the beam scanning method further includes:

[0311] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N resource subsets;

[0312] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0313] In the sixth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the beam scanning resources on the N consecutive time slots;

[0314] In the sixth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots;

[0315] In the eighth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N consecutive beam scanning resources;

[0316] In the eighth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

[0317] In some embodiments, when the type of the beam scanning resource group is the first type, receiving the beam scanning channel in the fifth manner or the sixth manner includes:

[0318] Obtaining a beam scanning mode indication according to configuration or pre-configuration information;

[0319] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates transmitting beam scanning, the beam scanning channel is received using the fifth mode;

[0320] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the sixth mode.

[0321] In specific implementation, when the beam scanning resource group is of the first type, when the beam scanning mode indication is the third value, it indicates sending beam scanning, and the beam scanning channel is sent in the fifth mode; when the beam scanning mode indication is the fourth value, it indicates sending beam scanning, and the beam scanning channel is sent in the sixth mode.

[0322] In some embodiments, when the type of the beam scanning resource group is the second type, receiving the beam scanning channel in the seventh or eighth manner includes:

[0323] Obtaining a beam scanning mode indication according to configuration or pre-configuration information;

[0324] In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates transmitting beam scanning, the beam scanning channel is received using the seventh mode;

[0325] In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the eighth mode.

[0326] In specific implementation, when the beam scanning resource group is of the second type, when the beam scanning mode indication is the third value, it indicates sending beam scanning, and the beam scanning channel is sent in the seventh mode; when the beam scanning mode indication is the fourth value, it indicates sending beam scanning, and the beam scanning channel is sent in the eighth mode.

[0327] In some embodiments, the method further comprises:

[0328] When a beam scanning channel sent by the first terminal is received on the target beam scanning resource group, a beam measurement report is sent on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group, where the beam measurement report is obtained based on the beam measurement performed on the beam scanning channel.

[0329] The target beam scanning resource satisfies at least one of the following conditions:

[0330] The RSRP measurement value of the beam-scanning channel received on the target beam-scanning resource is a maximum value among the RSRPs of the beam-scanning channels received in the beam-scanning resource group;

[0331] An RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold value.

[0332] In some embodiments, sending the beam measurement report on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group includes:

[0333] Send a beam measurement report using the second beam on the PSFCH corresponding to the target beam scanning resource.

[0334] The second beam includes a beam used to receive the beam scanning channel on the target beam scanning resource;

[0335] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and the beam scanning resources in each resource subset correspond to a PSFCH time domain resource; or, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and a PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

[0336] In some embodiments, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0337] For detailed explanation of this embodiment, please refer to the explanation of Figures 21 to 29 in the first embodiment, which will not be repeated here to avoid repetition.

[0338] Third embodiment

[0339] As shown in FIG32 , an embodiment of the present application provides a beam scanning device 3200, which is applied to a first terminal and includes:

[0340] A resource selection module 3201 is configured to select a target beam scanning resource group in a first resource pool according to configuration or preconfiguration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam and N is the number of directions of the configured or preconfigured receive beam.

[0341] The first sending module 3202 is configured to send a beam scanning channel on the target beam scanning resource group.

[0342] Optionally, the beam scanning channel includes:

[0343] Physical direct link control channel and reference signals; or

[0344] Physical direct link control channel, reference signal and physical direct link shared channel.

[0345] Optionally, the physical direct link control channel and / or the physical direct link shared channel is used to carry at least one of the following information:

[0346] Source identification;

[0347] Purpose identification;

[0348] Application service information;

[0349] Application ID;

[0350] Beam scanning resource group ID;

[0351] Beam ID;

[0352] Time-frequency indication information;

[0353] Reference signal indication information;

[0354] Beam measurement assistance information.

[0355] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0356] Time domain configuration information of beam scanning resources;

[0357] Frequency domain configuration information of beam scanning resources;

[0358] The reservation period of beam scanning resources;

[0359] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0360] The number of directions M in which the beam is transmitted;

[0361] The number of directions of the receiving beam N;

[0362] Beam scanning resource group ID set;

[0363] The time domain offset value of the beam scanning resource group;

[0364] Beam scanning mode indication;

[0365] Beam switching capability indication;

[0366] Configuration period of the physical direct link feedback channel PSFCH;

[0367] PSFCH configuration offset value;

[0368] frequency domain configuration information of the first resource pool;

[0369] Time domain configuration information of the first resource pool.

[0370] Optionally, the apparatus 3200 further includes:

[0371] a configuration information determining module, configured to determine a type of beam scanning resource group included in the first resource pool according to configuration or pre-configuration information;

[0372] The type of the beam scanning resource group is the first type or the second type;

[0373] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0374] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein X=ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

[0375] Optionally, the configuration information determination module includes:

[0376] A first determining unit is configured to obtain a beam switching capability indication according to the configuration or pre-configuration information;

[0377] a second determining unit, configured to determine, when the beam switching capability indicates that the first terminal does not support beam switching within a time slot, that the beam scanning resource group included in the first resource pool is of the first type;

[0378] The third determining unit is configured to determine that the beam scanning resource group included in the first resource pool is of the second type when the beam switching capability indicates that the first terminal supports beam switching within a time slot.

[0379] Optionally, the first sending module 3201 includes:

[0380] A first sending submodule, configured to send the beam scanning channel in a first manner or a second manner when the target beam scanning resource group is of the first type;

[0381] a second sending submodule, configured to send the beam scanning channel in a third manner or a fourth manner when the target beam scanning resource group is of the second type;

[0382] The first mode is to divide the beam scanning resources on each of M consecutive time slots into a resource subset, and transmit the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0383] The second manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using the same beam direction to send the beam scanning channel on the beam scanning resources in each resource subset;

[0384] The third manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions to send the beam scanning channel or use different beam directions to send the reference signal in the beam scanning channel on the beam scanning resources in each resource subset;

[0385] The fourth method is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, using the same beam direction to send the beam scanning channel or using the same beam direction to send the reference signal in the beam scanning channel.

[0386] Optionally, the apparatus 3200 further includes:

[0387] a first processing module, configured to, when the beam-scanning channel is sent using the third manner, and when a reference signal in the beam-scanning channel is sent using different beam directions on the beam-scanning resources in each resource subset, have a beam of a physical direct link control channel for sending the beam-scanning channel in a timeslot include a beam direction for sending the reference signal in the beam-scanning channel in the timeslot;

[0388] The second processing module is used to, when the beam scanning channel is sent using the fourth method, and the reference signal in the beam scanning channel is sent using the same beam direction on the beam scanning resources in each resource subset, the beam of the physical direct link control channel for sending the beam scanning channel in a time slot includes the beam direction for sending the reference signal in the beam scanning channel in the time slot.

[0389] Optionally, in the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources on the M consecutive time slots;

[0390] In the first manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots;

[0391] In the third manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the M consecutive beam scanning resources;

[0392] In the third manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the M continuous beam scanning resources.

[0393] In the second or fourth manner, if the number of beam directions supported by the first terminal is greater than or equal to M, different beam directions are used between different resource subsets;

[0394] In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is less than M, the number of beam directions supported by the first terminal is traversed and used at least between different resource subsets.

[0395] Optionally, the first sending submodule includes:

[0396] A first sending unit, configured to obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0397] a second sending unit, configured to, when the beam scanning resource group is of the first type and the beam scanning mode indicates sending beam scanning, send the beam scanning channel in a first mode;

[0398] The third sending unit is configured to send the beam scanning channel in a second manner when the beam scanning resource group is of the first type and the beam scanning mode indicates receiving beam scanning.

[0399] Optionally, the second sending submodule includes:

[0400] a fourth sending unit, configured to obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0401] a fifth sending unit, configured to, when the beam scanning resource group is of the second type, send the beam scanning channel in the third manner if the beam scanning mode indicates sending beam scanning;

[0402] A sixth sending unit is configured to send the beam scanning channel in the fourth manner when the beam scanning resource group is of the second type and the beam scanning mode indicates receiving beam scanning.

[0403] Optionally, the resource selection module 3201 includes:

[0404] a first resource selection submodule, configured to exclude the first beam scanning resource group from the set of candidate beam scanning resource groups included in the first resource pool according to the configuration or pre-configuration information and the perception information, so as to obtain a set of available candidate beam scanning resource groups;

[0405] The second resource selection submodule is configured to select a target beam scanning resource group according to a set of available candidate beam scanning resource groups.

[0406] Optionally, the perception information includes at least one of the following:

[0407] frequency domain information of the beam scanning resources occupied by the third terminal;

[0408] time domain information of the beam scanning resources occupied by the third terminal;

[0409] a transmission priority value of the beam scanning channel sent by the third terminal;

[0410] The beam scanning resource group ID occupied by the third terminal;

[0411] a reservation period of the beam scanning resources of the third terminal;

[0412] A reference signal received power (RSRP) measurement value of the reference signal sent by the third terminal.

[0413] Optionally, the first beam scanning resource group meets the following conditions:

[0414] The first beam scanning resource group or the resource group that is periodically reserved with the first beam scanning resource group overlaps with the second beam scanning resource group; the second beam scanning resource group includes: the beam scanning resource group occupied by the third terminal or the resource group that is periodically reserved with the beam scanning resource group occupied by the third terminal;

[0415] The third terminal satisfies at least one of the following conditions:

[0416] A maximum RSRP measurement value among the reference signal RSRP measurement values ​​sent by the third terminal in the occupied beam scanning resource group is higher than a first threshold value;

[0417] The transmission priority value of the beam scanning channel sent by the third terminal is greater than the transmission priority value of the beam scanning channel of the first terminal.

[0418] Optionally, the apparatus 3200 further includes:

[0419] A first receiving module is configured to receive, using a first beam, a beam measurement report sent by a second terminal on a physical direct link feedback channel (PSFCH) time domain resource corresponding to the beam scanning resource in the target beam scanning resource group;

[0420] Wherein, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, the beam scanning resources in each resource subset correspond to a PSFCH time domain resource, and the first beam is a beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource;

[0421] Or every M consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, a PSFCH time domain resource corresponds to a beam scanning resource in each resource subset, and the first beam includes the beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource.

[0422] Optionally, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0423] The third embodiment of the present application corresponds to the method of the first embodiment mentioned above. All the implementation means in the first embodiment mentioned above are applicable to the embodiment of the beam scanning device and can achieve the same technical effects.

[0424] Fourth embodiment

[0425] As shown in FIG33 , a beam scanning device 3300 according to an embodiment of the present application, applied to a second terminal, includes:

[0426] A first determining module 3301 is configured to determine a type of a beam scanning resource group in a first resource pool based on configuration or preconfiguration information; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, where M is the number of directions of a configured or preconfigured transmit beam, and N is the number of directions of a configured or preconfigured receive beam.

[0427] The second receiving module 3302 is configured to receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0428] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0429] Time domain configuration information of beam scanning resources;

[0430] Frequency domain configuration information of beam scanning resources;

[0431] The reservation period of beam scanning resources;

[0432] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0433] The number of directions M in which the beam is transmitted;

[0434] The number of directions of the receiving beam N;

[0435] Beam scanning resource group ID set;

[0436] The time domain offset value of the beam scanning resource group;

[0437] Beam scanning mode indication;

[0438] Beam switching capability indication;

[0439] Configuration period of the physical direct link feedback channel PSFCH;

[0440] PSFCH configuration offset value;

[0441] frequency domain configuration information of the first resource pool;

[0442] Time domain configuration information of the first resource pool.

[0443] Optionally, the beam scanning resource group is one of the following types:

[0444] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0445] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein, X=ceil(M×N / m), m is determined according to the time domain configuration information of the beam scanning resource.

[0446] Optionally, the first determining module 3301 includes:

[0447] A first determination submodule is configured to obtain a beam switching capability indication according to configuration or pre-configuration information;

[0448] a second determining submodule, configured to determine that the beam scanning resource group is of the first type when the beam switching capability indicates that the first terminal does not support beam switching within a time slot;

[0449] The third determining submodule is configured to determine that the beam scanning resource group is of the second type when the beam switching capability indicates that the first terminal supports beam switching within a time slot.

[0450] Optionally, the second receiving module 3302 includes:

[0451] A first receiving submodule, configured to receive the beam scanning channel in the fifth manner or the sixth manner when the beam scanning resource group is of the first type;

[0452] a second receiving submodule, configured to receive the beam scanning channel in the seventh manner or the eighth manner when the beam scanning resource group is of the second type;

[0453] The fifth manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0454] The sixth manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel;

[0455] The seventh manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0456] The eighth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel.

[0457] Optionally, in the fifth manner or the seventh manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N resource subsets;

[0458] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0459] In the sixth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the beam scanning resources on the N consecutive time slots;

[0460] In the sixth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots;

[0461] In the eighth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N consecutive beam scanning resources;

[0462] In the eighth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

[0463] Optionally, the first receiving submodule includes:

[0464] A first receiving unit is configured to obtain a beam scanning mode indication according to configuration or pre-configuration information;

[0465] a second receiving unit, configured to, when the beam scanning resource group is of the first type and the beam scanning mode indicates transmitting beam scanning, receive the beam scanning channel in the fifth mode;

[0466] The third receiving unit is configured to, when the beam scanning resource group is of the first type and the beam scanning mode indicates receiving beam scanning, adopt the sixth mode to receive the beam scanning channel.

[0467] Optionally, the second receiving submodule includes:

[0468] a fourth receiving unit, configured to obtain a beam scanning mode indication according to configuration or pre-configuration information;

[0469] a fifth receiving unit, configured to, when the type of the beam scanning resource group is the second type, and if the beam scanning mode indicates sending beam scanning, receive the beam scanning channel using the seventh mode;

[0470] A sixth receiving unit is configured to, when the type of the beam scanning resource group is the second type and the beam scanning mode indicates receiving beam scanning, adopt the eighth mode to receive the beam scanning channel.

[0471] Optionally, the apparatus 3300 further includes:

[0472] a second sending module, configured to, upon receiving a beam scanning channel sent by the first terminal on the target beam scanning resource group, send a beam measurement report on a PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group, where the beam measurement report is obtained based on the beam measurement performed on the beam scanning channel;

[0473] The target beam scanning resource satisfies at least one of the following conditions:

[0474] The RSRP measurement value of the beam-scanning channel received on the target beam-scanning resource is a maximum value among the RSRPs of the beam-scanning channels received in the beam-scanning resource group;

[0475] An RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold value.

[0476] Optionally, the second sending module includes:

[0477] A first sending submodule is configured to send a beam measurement report using a second beam on a PSFCH corresponding to a target beam scanning resource;

[0478] The second beam includes a beam used to receive the beam scanning channel on the target beam scanning resource;

[0479] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and the beam scanning resources in each resource subset correspond to a PSFCH time domain resource; or, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and a PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

[0480] Optionally, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0481] The beam scanning device 3300 is a device corresponding to the method in the second embodiment above. All implementation means in the above method embodiment are applicable to the embodiment of the beam scanning device and can achieve the same technical effect.

[0482] Fifth embodiment

[0483] To better achieve the above objectives, as shown in FIG34 , the fourth embodiment of the present application further provides a first terminal, including:

[0484] A processor 3400; and a memory 3420 connected to the processor 3400 via a bus interface, wherein the memory 3420 is used to store programs and data used by the processor 3400 when performing operations, and the processor 3400 calls and executes the programs and data stored in the memory 3420.

[0485] The transceiver 3410 is connected to the bus interface and is used to receive and send data under the control of the processor 3400. The processor 3400 is used to read the program in the memory 3420 to implement the following steps:

[0486] Selecting a target beam scanning resource group in the first resource pool according to the configuration or preconfiguration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam;

[0487] A beam scanning channel is sent on the target beam scanning resource group.

[0488] In FIG34 , the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 3400 and memory represented by memory 3420. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 3410 may be a plurality of components, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium. For different terminals, the user interface 3430 may also be an interface capable of connecting to required external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, and the like. The processor 3400 is responsible for managing the bus architecture and general processing, while the memory 3420 may store data used by the processor 3400 when performing operations.

[0489] Optionally, the beam scanning channel includes:

[0490] Physical direct link control channel and reference signals; or

[0491] Physical direct link control channel, reference signal and physical direct link shared channel.

[0492] Optionally, the physical direct link control channel and / or the physical direct link shared channel is used to carry at least one of the following information:

[0493] Source identification;

[0494] Purpose identification;

[0495] Application service information;

[0496] Application ID;

[0497] Beam scanning resource group ID;

[0498] Beam ID;

[0499] Time-frequency indication information;

[0500] Reference signal indication information;

[0501] Beam measurement assistance information.

[0502] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0503] Time domain configuration information of beam scanning resources;

[0504] Frequency domain configuration information of beam scanning resources;

[0505] The reservation period of beam scanning resources;

[0506] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0507] The number of directions M in which the beam is transmitted;

[0508] The number of directions of the receiving beam N;

[0509] Beam scanning resource group ID set;

[0510] The time domain offset value of the beam scanning resource group;

[0511] Beam scanning mode indication;

[0512] Beam switching capability indication;

[0513] Configuration period of the physical direct link feedback channel PSFCH;

[0514] PSFCH configuration offset value;

[0515] frequency domain configuration information of the first resource pool;

[0516] Time domain configuration information of the first resource pool.

[0517] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0518] Determining, according to configuration or pre-configuration information, a type of beam scanning resource group included in the first resource pool;

[0519] The type of the beam scanning resource group is the first type or the second type;

[0520] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0521] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein X=ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

[0522] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0523] Obtaining a beam switching capability indication according to the configuration or pre-configuration information;

[0524] When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group included in the first resource pool is of the first type;

[0525] When the beam switching capability indicates that the first terminal supports beam switching within a time slot, it is determined that the beam scanning resource group included in the first resource pool is the second type.

[0526] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0527] When the target beam scanning resource group is of the first type, sending the beam scanning channel in a first manner or a second manner;

[0528] When the target beam scanning resource group is of the second type, sending the beam scanning channel in a third manner or a fourth manner;

[0529] The first mode is to divide the beam scanning resources on each of M consecutive time slots into a resource subset, and transmit the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0530] The second manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using the same beam direction to send the beam scanning channel on the beam scanning resources in each resource subset;

[0531] The third manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions to send the beam scanning channel or use different beam directions to send the reference signal in the beam scanning channel on the beam scanning resources in each resource subset;

[0532] The fourth method is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, using the same beam direction to send the beam scanning channel or using the same beam direction to send the reference signal in the beam scanning channel.

[0533] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0534] When the beam-scanning channel is sent using the third manner, and the reference signal in the beam-scanning channel is sent using different beam directions on the beam-scanning resources in each resource subset, the beam of the physical direct link control channel for sending the beam-scanning channel in a timeslot includes the beam direction for sending the reference signal in the beam-scanning channel in the timeslot;

[0535] When the fourth method is adopted to send the beam scanning channel, and the reference signal in the beam scanning channel is sent using the same beam direction on the beam scanning resource in each resource subset, the beam of the physical direct link control channel for sending the beam scanning channel in a time slot includes the beam direction for sending the reference signal in the beam scanning channel in the time slot.

[0536] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0537] In the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources on the M consecutive time slots;

[0538] In the first manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots;

[0539] In the third manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the M consecutive beam scanning resources;

[0540] In the third manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the M continuous beam scanning resources.

[0541] In the second or fourth manner, if the number of beam directions supported by the first terminal is greater than or equal to M, different beam directions are used between different resource subsets;

[0542] In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is less than M, the number of beam directions supported by the first terminal is traversed and used at least between different resource subsets.

[0543] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0544] Obtaining a beam scanning mode indication according to the configuration or pre-configuration information;

[0545] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates sending beam scanning, sending the beam scanning channel in the first mode;

[0546] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is sent in a second mode.

[0547] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0548] Obtaining a beam scanning mode indication according to the configuration or pre-configuration information;

[0549] In a case where the beam scanning resource group is of the second type, if the beam scanning mode indicates sending beam scanning, sending the beam scanning channel using the third mode;

[0550] In a case where the beam scanning resource group is of the second type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is sent using the fourth mode.

[0551] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0552] Excluding the first beam scanning resource group from the set of candidate beam scanning resource groups included in the first resource pool according to the configuration or pre-configuration information and the perception information, to obtain an available set of candidate beam scanning resource groups;

[0553] A target beam scanning resource group is selected based on a set of available candidate beam scanning resource groups.

[0554] Optionally, the perception information includes at least one of the following:

[0555] frequency domain information of the beam scanning resources occupied by the third terminal;

[0556] time domain information of the beam scanning resources occupied by the third terminal;

[0557] a transmission priority value of the beam scanning channel sent by the third terminal;

[0558] The beam scanning resource group ID occupied by the third terminal;

[0559] a reservation period of the beam scanning resources of the third terminal;

[0560] A reference signal received power (RSRP) measurement value of the reference signal sent by the third terminal.

[0561] Optionally, the first beam scanning resource group meets the following conditions:

[0562] The first beam scanning resource group or the resource group that is periodically reserved with the first beam scanning resource group overlaps with the second beam scanning resource group; the second beam scanning resource group includes: the beam scanning resource group occupied by the third terminal or the resource group that is periodically reserved with the beam scanning resource group occupied by the third terminal;

[0563] The third terminal satisfies at least one of the following conditions:

[0564] A maximum RSRP measurement value among the reference signal RSRP measurement values ​​sent by the third terminal in the occupied beam scanning resource group is higher than a first threshold value;

[0565] The transmission priority value of the beam scanning channel sent by the third terminal is greater than the transmission priority value of the beam scanning channel of the first terminal.

[0566] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0567] Receive, using a first beam, a beam measurement report sent by a second terminal on a physical direct link feedback channel (PSFCH) time domain resource corresponding to the beam scanning resource in the target beam scanning resource group;

[0568] Wherein, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, the beam scanning resources in each resource subset correspond to a PSFCH time domain resource, and the first beam is a beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource;

[0569] Or every M consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, a PSFCH time domain resource corresponds to a beam scanning resource in each resource subset, and the first beam includes the beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource.

[0570] Optionally, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0571] Sixth embodiment

[0572] To better achieve the above objectives, as shown in FIG35 , the sixth embodiment of the present application further provides a second terminal, including:

[0573] A processor 3500; and a memory 3520 connected to the processor 3500 via a bus interface, wherein the memory 3520 is used to store programs and data used by the processor 3500 when performing operations, and the processor 3500 calls and executes the programs and data stored in the memory 3520.

[0574] The transceiver 3510 is connected to the bus interface and is used to receive and send data under the control of the processor 3500. The processor 3500 is used to read the program in the memory 3520 to implement the following steps:

[0575] Determining, based on the configuration or preconfiguration information, a type of a beam scanning resource group in the first resource pool; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, where M is the number of directions of the configured or preconfigured transmit beam, and N is the number of directions of the configured or preconfigured receive beam;

[0576] The beam scanning channel sent by the first terminal is received according to the type of the beam scanning resource group.

[0577] In FIG35 , the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 3500 and memory represented by memory 3520. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 3510 may be a plurality of components, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium. For different terminals, the user interface 3530 may also be an interface capable of connecting to required external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, and the like. The processor 3500 is responsible for managing the bus architecture and general processing, while the memory 3520 may store data used by the processor 3500 when performing operations.

[0578] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0579] Time domain configuration information of beam scanning resources;

[0580] Frequency domain configuration information of beam scanning resources;

[0581] The reservation period of beam scanning resources;

[0582] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0583] The number of directions M in which the beam is transmitted;

[0584] The number of directions of the receiving beam N;

[0585] Beam scanning resource group ID set;

[0586] The time domain offset value of the beam scanning resource group;

[0587] Beam scanning mode indication;

[0588] Beam switching capability indication;

[0589] Configuration period of the physical direct link feedback channel PSFCH;

[0590] PSFCH configuration offset value;

[0591] frequency domain configuration information of the first resource pool;

[0592] Time domain configuration information of the first resource pool.

[0593] Optionally, the beam scanning resource group is one of the following types:

[0594] The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource;

[0595] The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein, X=ceil(M×N / m), m is determined according to the time domain configuration information of the beam scanning resource.

[0596] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0597] Obtaining a beam switching capability indication based on configuration or pre-configuration information;

[0598] When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group is the first type;

[0599] When the beam switching capability indicates that the first terminal supports beam switching within a time slot, the beam scanning resource group is determined to be the second type.

[0600] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0601] When the beam scanning resource group is of the first type, receiving the beam scanning channel in the fifth manner or the sixth manner;

[0602] When the beam scanning resource group is of the second type, receiving the beam scanning channel in the seventh manner or the eighth manner;

[0603] The fifth manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0604] The sixth manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel;

[0605] The seventh manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset;

[0606] The eighth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions on the beam scanning resources in each resource subset to receive the beam scanning channel.

[0607] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0608] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N resource subsets;

[0609] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0610] In the sixth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the beam scanning resources on the N consecutive time slots;

[0611] In the sixth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots;

[0612] In the eighth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N consecutive beam scanning resources;

[0613] In the eighth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

[0614] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0615] Obtaining a beam scanning mode indication according to configuration or pre-configuration information;

[0616] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates transmitting beam scanning, the beam scanning channel is received using the fifth mode;

[0617] In a case where the beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the sixth mode.

[0618] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0619] Obtaining a beam scanning mode indication according to configuration or pre-configuration information;

[0620] In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates transmitting beam scanning, the beam scanning channel is received using the seventh mode;

[0621] In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the eighth mode.

[0622] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0623] When a beam scanning channel sent by the first terminal is received on the target beam scanning resource group, a beam measurement report is sent on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group, where the beam measurement report is obtained based on the beam measurement performed on the beam scanning channel.

[0624] The target beam scanning resource satisfies at least one of the following conditions:

[0625] The RSRP measurement value of the beam-scanning channel received on the target beam-scanning resource is a maximum value among the RSRPs of the beam-scanning channels received in the beam-scanning resource group;

[0626] An RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold value.

[0627] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0628] Send a beam measurement report using the second beam on the PSFCH corresponding to the target beam scanning resource.

[0629] The second beam includes a beam used to receive the beam scanning channel on the target beam scanning resource;

[0630] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and the beam scanning resources in each resource subset correspond to a PSFCH time domain resource; or, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and a PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

[0631] Optionally, the time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

[0632] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or may be accomplished by instructing relevant hardware through a computer program, wherein the computer program includes instructions for executing part or all of the steps of the above method; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.

[0633] In addition, a specific embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the program implements the steps of the method described in the first or second embodiment. The program can achieve the same technical effects and, to avoid repetition, is not further described here.

[0634] In addition, it should be noted that, in the apparatus and method of the present application, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present application. Moreover, the steps of performing the above-mentioned series of processes can naturally be performed in chronological order according to the order of description, but do not necessarily need to be performed in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present application can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices with hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present application.

[0635] Therefore, the purpose of the present application can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general-purpose device. Therefore, the purpose of the present application can also be achieved simply by providing a program product containing program code that implements the method or device. That is to say, such a program product also constitutes the present application, and the storage medium storing such a program product also constitutes the present application. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present application, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present application. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but do not necessarily need to be performed in chronological order. Certain steps can be performed in parallel or independently of each other.

[0636] The above is an optional implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A beam scanning method, applied to a first terminal, the beam scanning method comprising: According to the configuration or pre-configuration information, a target beam scanning resource group is selected in the first resource pool; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmission beam, and N is the number of directions of the configured or pre-configured reception beam; A beam scanning channel is sent on the target beam scanning resource group.

2. The beam scanning method according to claim 1, wherein: The beam scanning channel comprises: Physical direct link control channel and reference signals; or Physical direct link control channel, reference signal and physical direct link shared channel.

3. The beam scanning method according to claim 2, wherein: The physical direct link control channel and / or the physical direct link shared channel is used to carry at least one of the following information: Source identification; Purpose identification; Application service information; Application ID; Beam scanning resource group ID; Beam ID; Time-frequency indication information; Reference signal indication information; Beam measurement assistance information.

4. The beam scanning method according to claim 1, wherein: The configuration or pre-configuration information includes at least one of the following: Time domain configuration information of beam scanning resources; Frequency domain configuration information of beam scanning resources; The reservation period of beam scanning resources; Sequence ID information and sequence type information of the reference signal of the beam scanning channel; The number of directions in which the beam is transmitted, M; The number of directions of the receiving beam N; Beam scanning resource group ID set; The time domain offset value of the beam scanning resource group; Beam scanning mode indication; Beam switching capability indication; Configuration period of physical direct link feedback channel PSFCH; Configuration offset value of PSFCH; Frequency domain configuration information of the first resource pool; Time domain configuration information of the first resource pool.

5. The beam scanning method according to claim 1, wherein: The method further comprises: Determining, according to configuration or pre-configuration information, a type of beam scanning resource group included in the first resource pool; The type of the beam scanning resource group is the first type or the second type; The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource; The second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein X=ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

6. The beam scanning method according to claim 5, wherein: The determining, according to the configuration or pre-configuration information, the type of the beam scanning resource group included in the first resource pool comprises: Obtaining a beam switching capability indication according to the configuration or pre-configuration information; When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group included in the first resource pool is of the first type; When the beam switching capability indicates that the first terminal supports beam switching within a time slot, it is determined that the beam scanning resource group included in the first resource pool is the second type.

7. The beam scanning method according to claim 5, wherein: The sending of a beam scanning channel on the target beam scanning resource group includes: When the target beam scanning resource group is of the first type, sending the beam scanning channel in a first manner or a second manner; When the target beam scanning resource group is of the second type, sending the beam scanning channel in a third manner or a fourth manner; The first mode is: dividing the beam scanning resources on each M consecutive time slots into a resource subset, and using different beam directions to send the beam scanning channel on the beam scanning resources in each resource subset; The second mode is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and sending the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset; The third manner is: dividing every M continuous beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, using different beam directions to send the beam scanning channel or using different beam directions to send the reference signal in the beam scanning channel; The fourth method is: divide every N consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, use the same beam direction to send the beam scanning channel or use the same beam direction to send the reference signal in the beam scanning channel.

8. The beam scanning method according to claim 7, wherein: The method further comprises: When the beam scanning channel is sent in the third manner, when the reference signal in the beam scanning channel is sent using different beam directions on the beam scanning resources in each resource subset, in one time slot, the beam of the physical direct link control channel for sending the beam scanning channel includes the beam direction for sending the reference signal in the beam scanning channel in the time slot; When the fourth method is adopted to send the beam scanning channel, and the reference signal in the beam scanning channel is sent using the same beam direction on the beam scanning resources in each resource subset, the beam of the physical direct link control channel for sending the beam scanning channel in a time slot includes the beam direction for sending the reference signal in the beam scanning channel in the time slot.

9. The beam scanning method according to claim 7, wherein: The method further comprises: In the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources on the M consecutive time slots; In the first manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots; In the third manner, if the number of beam directions supported by the first terminal is greater than or equal to M, the M beam directions supported by the first terminal correspond one-to-one to the M continuous beam scanning resources; In the third manner, if the number of beam directions supported by the first terminal is less than M, each beam direction supported by the first terminal corresponds to at least one of the M continuous beam scanning resources; In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is greater than or equal to M, different beam directions are used between different resource subsets; In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is less than M, the number of beam directions supported by the first terminal is traversed and used at least between different resource subsets.

10. The beam scanning method according to claim 7, wherein: The sending of the beam scanning channel in a first manner or a second manner when the target beam scanning resource group is of the first type includes: Obtaining a beam scanning mode indication according to the configuration or pre-configuration information; In a case where the target beam scanning resource group is of the first type, if the beam scanning mode indicates sending beam scanning, sending the beam scanning channel in a first mode; In the case where the target beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is sent in a second mode.

11. The beam scanning method according to claim 7, wherein: When the target beam scanning resource group is of the second type, sending the beam scanning channel in the third manner or the fourth manner includes: Obtaining a beam scanning mode indication according to the configuration or pre-configuration information; In a case where the target beam scanning resource group is of the second type, if the beam scanning mode indicates sending beam scanning, the beam scanning channel is sent using the third mode; In the case where the target beam scanning resource group is of the second type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is sent using the fourth mode.

12. The beam scanning method according to claim 1, wherein: The selecting, in the first resource pool according to the configuration or pre-configuration information, a target beam scanning resource group comprises: According to the configuration or pre-configuration information and the perception information, the first beam scanning resource group is excluded from the set of candidate beam scanning resource groups included in the first resource pool to obtain an available set of candidate beam scanning resource groups; A target beam scanning resource group is selected based on a set of available candidate beam scanning resource groups.

13. The beam scanning method according to claim 12, wherein: The perception information includes at least one of the following: Frequency domain information of the beam scanning resources occupied by the third terminal; Time domain information of the beam scanning resources occupied by the third terminal; The transmission priority value of the beam scanning channel sent by the third terminal; The beam scanning resource group ID occupied by the third terminal; a reservation period of the beam scanning resources of the third terminal; A reference signal received power (RSRP) measurement value of the reference signal sent by the third terminal.

14. The beam scanning method according to claim 12, wherein: The first beam scanning resource group meets the following conditions: The first beam scanning resource group or a resource group that is periodically reserved with the first beam scanning resource group overlaps with the second beam scanning resource group; The second beam scanning resource group includes: a beam scanning resource group occupied by a third terminal or a resource group that is periodically reserved with the beam scanning resource group occupied by the third terminal; The third terminal satisfies at least one of the following conditions: The maximum RSRP measurement value among the reference signal RSRP measurement values ​​sent by the third terminal in the occupied beam scanning resource group is higher than the first threshold value; The transmission priority value of the beam scanning channel sent by the third terminal is greater than the transmission priority value of the beam scanning channel of the first terminal.

15. The beam scanning method according to claim 1, wherein: After sending the beam scanning channel on the target beam scanning resource group, the method further includes: Using the first beam to receive the beam measurement report sent by the second terminal on the physical direct link feedback channel PSFCH time domain resource corresponding to the beam scanning resource in the target beam scanning resource group; Among them, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, the beam scanning resources in each resource subset correspond to a PSFCH time domain resource, and the first beam is a beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource; Or every M consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, one PSFCH time domain resource corresponds to a beam scanning resource in each resource subset, and the first beam includes a beam used to send the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource.

16. The beam scanning method according to claim 15, wherein: The time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

17. A beam scanning method, applied to a second terminal, the beam scanning method comprising: Determine, according to the configuration or pre-configuration information, the type of the beam scanning resource group in the first resource pool; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmit beam, and N is the number of directions of the configured or pre-configured receive beam; The beam scanning channel sent by the first terminal is received according to the type of the beam scanning resource group.

18. The beam scanning method according to claim 17, wherein: The configuration or pre-configuration information includes at least one of the following: Time domain configuration information of beam scanning resources; Frequency domain configuration information of beam scanning resources; The reservation period of beam scanning resources; Sequence ID information and sequence type information of the reference signal of the beam scanning channel; The number of directions in which the beam is transmitted, M; The number of directions of the receiving beam N; Beam scanning resource group ID set; The time domain offset value of the beam scanning resource group; Beam scanning mode indication; Beam switching capability indication; Configuration period of physical direct link feedback channel PSFCH; Configuration offset value of PSFCH; Frequency domain configuration information of the first resource pool; Time domain configuration information of the first resource pool.

19. The beam scanning method according to claim 17, wherein: The beam scanning resource group is one of the following types: The first type is: the beam scanning resource group includes M×N time slots, and a time slot in the time domain includes only one beam scanning resource; The second type, the second type is: the beam scanning resource group includes X time slots, and one time slot in the time domain contains m beam scanning resources; wherein X=ceil(M×N / m), m is determined according to the time domain configuration information of the beam scanning resources.

20. The beam scanning method according to claim 19, wherein: The determining, according to the configuration or pre-configuration information, the type of the beam scanning resource group in the first resource pool includes: Obtaining a beam switching capability indication according to configuration or pre-configuration information; When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determining that the beam scanning resource group is the first type; When the beam switching capability indicates that the first terminal supports beam switching within a time slot, the beam scanning resource group is determined to be the second type.

21. The beam scanning method according to claim 19, wherein: The receiving, according to the type of the beam scanning resource group, the beam scanning channel sent by the first terminal includes: When the beam scanning resource group is of the first type, receiving the beam scanning channel in the fifth manner or the sixth manner; When the beam scanning resource group is of the second type, receiving the beam scanning channel in the seventh manner or the eighth manner; The fifth mode is: dividing the beam scanning resources on each M consecutive time slots into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset; The sixth mode is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and using different beam directions to receive the beam scanning channel on the beam scanning resources in each resource subset; The seventh manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and using the same beam direction to receive the beam scanning channel on the beam scanning resources in each resource subset; The eighth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and using different beam directions to receive the beam scanning channel on the beam scanning resources in each resource subset.

22. The beam scanning method according to claim 21, wherein: The method further comprises: In the fifth manner or the seventh manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N resource subsets; In the fifth manner or the seventh manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N resource subsets; In the sixth mode, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the beam scanning resources on the N consecutive time slots; In the sixth mode, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots; In the eighth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, the N beam directions supported by the second terminal correspond one-to-one to the N consecutive beam scanning resources; In the eighth manner, if the number of beam directions supported by the second terminal is less than N, each beam direction supported by the second terminal corresponds to at least one of the N continuous beam scanning resources.

23. The beam scanning method according to claim 21, wherein: When the type of the beam scanning resource group is the first type, receiving the beam scanning channel in the fifth manner or the sixth manner includes: Obtaining a beam scanning mode indication according to configuration or pre-configuration information; In the case where the beam scanning resource group is of the first type, if the beam scanning mode indicates sending beam scanning, the beam scanning channel is received using the fifth mode; In the case where the beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the sixth mode.

24. The beam scanning method according to claim 21, wherein: When the type of the beam scanning resource group is the second type, receiving the beam scanning channel in the seventh manner or the eighth manner includes: Obtaining a beam scanning mode indication according to configuration or pre-configuration information; In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates sending beam scanning, the beam scanning channel is received using the seventh mode; In a case where the type of the beam scanning resource group is the second type, if the beam scanning mode indicates receiving beam scanning, the beam scanning channel is received using the eighth mode.

25. The beam scanning method according to claim 17, wherein: The method further comprises: When a beam scanning channel sent by the first terminal is received on the target beam scanning resource group, a beam measurement report is sent on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group, where the beam measurement report is obtained according to the beam measurement performed by receiving the beam scanning channel; The target beam scanning resource satisfies at least one of the following conditions: The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is the maximum value among the RSRPs of the beam scanning channels received in the beam scanning resource group; The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than the second threshold value.

26. The beam scanning method according to claim 25, wherein: The sending of the beam measurement report on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group includes: Sending a beam measurement report using a second beam on the PSFCH corresponding to the target beam scanning resource; Wherein, the second beam includes a beam used for receiving the beam scanning channel on the target beam scanning resource; Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and the beam scanning resources in each resource subset correspond to a PSFCH time domain resource; or, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and a PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

27. The beam scanning method according to claim 25, wherein: The time slot position of the PSFCH is related to the configuration offset value and M of the PSFCH.

28. A first terminal, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the beam scanning method according to any one of claims 1 to 16 are implemented.

29. A second terminal, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the beam scanning method according to any one of claims 17 to 27 are implemented.

30. A beam scanning device, applied to a first terminal, the beam scanning device comprising: A resource selection module, configured to select a target beam scanning resource group in a first resource pool according to configuration or pre-configuration information; wherein the number of beam scanning resources included in the target beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmission beam, and N is the number of directions of the configured or pre-configured reception beam; The first sending module is used to send a beam scanning channel on the target beam scanning resource group.

31. A beam scanning device, applied to a second terminal, the beam scanning device comprising: A first determination module is used to determine the type of the beam scanning resource group in the first resource pool according to the configuration or pre-configuration information; wherein the number of beam scanning resources included in the beam scanning resource group is related to M and N, M is the number of directions of the configured or pre-configured transmission beam, and N is the number of directions of the configured or pre-configured reception beam; The second receiving module is used to receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

32. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements the steps of the beam scanning method as claimed in any one of claims 1 to 16, or implements the steps of the beam scanning method as claimed in any one of claims 17 to 27.

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