Beam scanning method, device and terminal

Abstract

The invention provides a beam scanning method, a beam scanning device and a terminal. The method is applied to a first terminal, and comprises the following steps: selecting 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 configured or pre-configured sending beams, and N is the number of directions of configured or pre-configured receiving beams; and sending a beam scanning channel on the target beam scanning resource group. The beam scanning scheme provided by the invention can support a millimeter wave communication technology of a straight-through link.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular, to a beam scanning method, apparatus, and terminal. Background Art

[0002] Currently, the deployment of C-V2X is mainly in the sub-6G frequency band (FR1 band). However, with the development of C-V2X, the sub-6G frequency band cannot meet the requirements of future vehicle networks for ultra-high throughput, ultra-low latency, and ultra-high reliability. The millimeter-wave frequency band of 30 - 300 GHz (FR2 band) can provide a larger bandwidth and improve system performance, and has great application potential for vehicle-to-everything (V2X).

[0003] The existing technology does not support direct-link millimeter-wave communication technology. If millimeter-wave communication technology is introduced in the direct link (SideLink, SL), in order to ensure communication efficiency, data transmission needs to be carried out through directional beams. Therefore, according to the specific characteristics of the direct-link technology, a beam management mechanism for the direct link needs to be introduced. Summary of the Invention

[0004] The present invention provides a beam scanning method, apparatus, and terminal, which solve the problem that the existing direct link does not support millimeter-wave communication technology.

[0005] In a first aspect, an embodiment of the present invention provides a beam scanning method, which is applied to a first terminal and includes:

[0006] 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 configured or pre-configured transmission beam directions, and N is the number of configured or pre-configured reception beam directions;

[0007] Send a beam scanning channel on the target beam scanning resource group.

[0008] In a second aspect, an embodiment of the present invention provides a beam scanning method, which is applied to a second terminal and includes:

[0009] Determine the type of a 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 beam scanning resource group is related to M and N, M is the number of configured or pre-configured transmission beam directions, and N is the number of configured or pre-configured reception beam directions;

[0010] Receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0011] In a third aspect, an embodiment of the present invention provides a first terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the steps of the beam scanning method described in the first aspect are implemented.

[0012] In a fourth aspect, an embodiment of the present invention provides a second terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the steps of the beam scanning method described in the second aspect are implemented.

[0013] In a fifth aspect, an embodiment of the present invention provides a beam scanning device applied to a first terminal, including:

[0014] A resource selection module, configured to select a target beam scanning resource group from 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 configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams;

[0015] A first transmission module, configured to transmit a beam scanning channel on the target beam scanning resource group.

[0016] In a sixth aspect, an embodiment of the present invention provides a beam scanning device applied to a second terminal, including:

[0017] A first determination module, configured to determine the type of a 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 beam scanning resource group is related to M and N, M is the number of directions of configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams;

[0018] A second reception module, configured to receive the beam scanning channel transmitted by the first terminal according to the type of the beam scanning resource group.

[0019] In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the beam scanning method described in the first aspect or the second aspect are implemented.

[0020] The beneficial effects of the above technical solutions of the present invention are:

[0021] In the above solution, the first terminal selects a target beam scanning resource group from the first resource pool according to configured or pre-configured 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 transmit beams, and N is the number of directions of the configured or pre-configured receive beams; on the target beam scanning resource group, a beam scanning channel is transmitted. The solution of the present invention proposes a new beam scanning scheme for millimeter-wave communication of a direct link, which can support beam pairing of a terminal in the millimeter-wave band. Description of the Drawings

[0022] Figure 1 Fig. 1 shows one of the flowcharts of the beam scanning method according to an embodiment of the present invention;

[0023] Figure 2 Fig. 2 shows one of the structural diagrams of the beam scanning channel according to an embodiment of the present invention;

[0024] Figure 3 Fig. 3 shows another structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0025] Figure 4 Fig. 4 shows a further structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0026] Figure 5 Fig. 5 shows a still further structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0027] Figure 6 Fig. 6 shows a yet further structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0028] Figure 7 Fig. 7 shows a still yet further structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0029] Figure 8 Fig. 8 shows a further still structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0030] Figure 9 Fig. 9 shows a still further still structural diagram of the beam scanning channel according to an embodiment of the present invention;

[0031] Figure 10 Fig. 10 shows one of the distribution diagrams of the beam scanning resource groups according to an embodiment of the present invention;

[0032] Figure 11 Fig. 11 shows another distribution diagram of the beam scanning resource groups according to an embodiment of the present invention;

[0033] Figure 12 Fig. 12 shows a further distribution diagram of the beam scanning resource groups according to an embodiment of the present invention;

[0034] Figure 13One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0035] Figure 14 Another schematic diagram showing the beam scanning method according to an embodiment of the present invention;

[0036] Figure 15 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0037] Figure 16 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0038] Figure 17 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0039] Figure 18 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0040] Figure 19 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0041] Figure 20 One of the schematic diagrams showing the beam scanning method according to an embodiment of the present invention;

[0042] Figure 21 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0043] Figure 22 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0044] Figure 23 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0045] Figure 24 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0046] Figure 25 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0047] Figure 26 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0048] Figure 27 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0049] Figure 28 One of the schematic diagrams showing the time-domain configuration of the PSFCH resource according to an embodiment of the present invention;

[0050] Figure 29 The ninth time-domain configuration schematic diagram of the PSFCH resource according to the embodiment of the present invention;

[0051] Figure 30 The schematic diagram of beam scanning resource exclusion according to the embodiment of the present invention;

[0052] Figure 31 The second flowchart of the beam scanning method according to the embodiment of the present invention;

[0053] Figure 32 The first structural diagram of the beam scanning device according to the embodiment of the present invention;

[0054] Figure 33 The second structural diagram of the beam scanning device according to the embodiment of the present invention;

[0055] Figure 34 The schematic diagram of the hardware structure of the first terminal according to the embodiment of the present invention;

[0056] Figure 35 The schematic diagram of the hardware structure of the second terminal according to the embodiment of the present invention. Detailed implementation manners

[0057] To make the technical problems, technical solutions and advantages to be solved by the present invention 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 a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, descriptions of known functions and structures are omitted for clarity and conciseness.

[0058] It should be understood that the term "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in any suitable manner in one or more embodiments.

[0059] In various embodiments of the present invention, it should be understood that the magnitudes of the serial numbers of the following processes do not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0060] In addition, the terms "system" and "network" are often used interchangeably herein.

[0061] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0062] The following introduces the initial beam pairing process in NR Uu.

[0063] In the cell search and initial random access processes, the UE needs to perform downlink synchronization with the base station and receive system messages. The base station uses beam scanning technology to perform scans at a fixed period, sending synchronization signals and System Information Blocks (SSB). The UE communicating with the base station receives the SSB on its corresponding beam to obtain downlink synchronization and system messages, and performs random access for sending and receiving of each message in the same beam direction. In addition to broadcast and access information, system messages, paging, and other information are also sent using beam scanning.

[0064] The initial beam pairing in NR Uu is based on SSB transmission and the associated Physical Random Access Channel (PRACH) report. The SSB is transmitted in different beam directions. The UE detects the SSB and measures the signal quality, and reports the measurement results and the SSB resource index to the base station through the associated PRACH. Among them, the pairing rule of the SSB resource index and the PRACH resource is predefined.

[0065] However, the existing vehicle-to-everything (V2X) communication technologies LTE / NR SL are all omni-directional communications. However, communication in the FR2 frequency band requires beamforming, and solutions need to be designed to implement beam management in direct link communication. Due to the distributed communication characteristics of SL and the differences in reference signal structures, the existing beam management technologies in Uu are not applicable. Therefore, a beam management mechanism in SL communication needs to be designed to ensure that direct link devices can communicate through beams in FR2.

[0066] Specifically, the embodiments of the present invention provide a beam scanning method, device, and terminal, which solve the problem that the direct link in the prior art does not support millimeter-wave communication technology.

[0067] The first embodiment

[0068] As Figure 1 shown, the embodiments of the present invention provide a beam scanning method, which is applied to a first terminal and specifically may include the following steps:

[0069] Step 101: Select a target beam scanning resource group from the 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 beams, and N is the number of directions of the configured or pre-configured reception beams.

[0070] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0071] Time domain configuration information of beam scanning resources;

[0072] Frequency domain configuration information of beam scanning resources;

[0073] Reservation period of beam scanning resources;

[0074] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0075] The number of directions M of the transmission beam;

[0076] The number of directions N of the reception beam;

[0077] Beam scanning resource group ID set;

[0078] Time domain offset value of the beam scanning resource group;

[0079] Beam scanning mode indication;

[0080] Beam switching ability indication;

[0081] Configuration period of the physical direct link feedback channel PSFCH;

[0082] Configuration offset value of PSFCH;

[0083] Frequency domain configuration information of the first resource pool;

[0084] Time domain configuration information of the first resource pool.

[0085] Optionally, the time domain configuration information of beam scanning resources 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 start symbol position information and time domain symbol number information, pattern information of the time domain symbol positions occupied by the reference signal supported by the resource pool.

[0086] Optionally, the frequency-domain configuration information of the beam scanning resources includes: the frequency-domain pattern information of the reference signal, or the frequency-domain pattern information of the physical sidelink control channel, or the frequency-domain pattern information of the physical sidelink shared channel; wherein, the frequency-domain pattern information includes at least one of the following: starting resource element (ResourceElement, RE), comb size, comb offset, cyclic shift, or orthogonal cover code (OrthogonalCover Code, OCC), the starting physical resource block (Physical Resource Block, PRB) position in the frequency domain, sub-channel position information, the number of PRBs occupied in the frequency domain, the number of sub-channels occupied in the frequency domain information, frequency-domain shift information (i.e., the number of PRBs offset relative to the frequency-domain reference point).

[0087] It should be noted 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.

[0088] 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.

[0089] The reference signal can be generated according to the configured or pre-configured sequence ID information and sequence type information, or can also be generated according to the information carried in the physical sidelink control channel.

[0090] Step 102: Transmit a beam scanning channel on the target beam scanning resource group.

[0091] 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, where M is the number of configured or pre-configured transmission beam directions and N is the number of configured or pre-configured reception beam directions. By transmitting a beam scanning channel on the target beam scanning resource group, beam scanning at the receiving end or beam scanning at the transmitting end can be achieved. Through beam scanning, beam pairing of the terminal in the millimeter wave band can be supported, and directional beams can be used for data transmission, which is applicable to millimeter wave communication technology for sidelinks.

[0092] In some embodiments, the beam scanning channel includes:

[0093] The physical sidelink control channel and the reference signal; or

[0094] The physical sidelink control channel, the reference signal, and the physical sidelink shared channel.

[0095] Exemplarily, when the beam scanning channel includes a Physical Sidelink Control Channel (PSCCH), a Reference Signal (RS), and a Physical Sidelink Shared Channel (PSSCH), the PSCCH, RS, and PSSCH in one time slot in the time domain are all transmitted in the same beam direction. At this time, one beam scanning resource is one time slot in the time domain or there is only one beam scanning resource within one time slot. For example, as Figure 2 and Figure 3 shown. The multiplexing method of PSCCH and RS is Time Division Multiplexing (TDM), and the beam scanning channel occupies L sub-channels or L Physical Resource Blocks (PRBs) in the frequency domain.

[0096] Exemplarily, when the beam scanning channel includes PSCCH and RS, the channel structure of the beam scanning channel may include:

[0097] Method 1: As Figure 4 shown, the multiplexing method of PSCCH and RS in one time slot in the time domain is Time Division Multiplexing (TDM), and the multiplexing method of RS is TDM. The symbols within one time slot are divided into different RS resources. The beam scanning channel occupies L sub-channels or L PRBs in the frequency domain. PSCCH is associated with the RS in the time slot. For example, RS1, RS2, RS3, RS4, and RS5 are associated with PSCCH. Different beam directions can be used for transmission on different RS resources in the time domain. At this time, the beam for transmitting PSCCH can be the same as or cover the beam direction of the associated RS; or all RS resources are transmitted in the same beam direction, and the beam for transmitting PSCCH can be the same as the beam direction of the associated RS.

[0098] Method 2: As Figure 5 shown, the multiplexing method of PSCCH and RS in one time slot in the time domain is TDM. The multiplexing method of PSCCH in the frequency domain is Frequency Division Multiplexing (FDM), and the multiplexing method between RSs is TDM and FDM. The symbols within one time slot in the time domain are divided into different RS resources. Each RS resource occupies L sub-channels or L PRBs in the frequency domain and is multiplexed in a comb-like manner. Different RS resources in the time domain are associated with one PSCCH. For example, RS1, RS2, RS3, and RS4 are associated with PSCCH1, and RS5, RS6, RS7, and RS8 are associated with PSCCH2. Different beam directions can be used for transmission on different RS resources in the time domain. At this time, the transmission beam of PSCCH is the same as or covers the transmission beam direction of the associated RS; or all RS resources are transmitted in the same beam direction, and the transmission beam of PSCCH can be the same as the transmission beam direction of the associated RS.

[0099] Method 3: As Figure 6 shown, for the mini-slot structure, one time slot 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 sub-channels or L PRBs. In the time domain, the RS resources in different mini-slots can be transmitted in different beam directions. At this time, the transmission beam of the PSCCH is the same as the transmission beam direction of the associated RS; or the beam scanning channels in all mini-slots are transmitted in the same beam direction.

[0100] Method 4: As Figure 7 shown, for the mini-slot structure, one time slot is divided into multiple mini-slots. Each mini-slot contains an AGC symbol, a PSCCH symbol, and an RS symbol. The multiplexing method of the PSCCH and the RS in each mini-slot is TDM. In the frequency domain, the multiplexing method of the PSCCH is frequency division multiplexing (FDM), and the multiplexing method of the RS is FDM. Each RS resource occupies L sub-channels or L PRBs in the frequency domain and is comb multiplexed. Each PSCCH has an associated RS. For example, PSCCH1 is associated with RS1, and PSCCH5 is associated with RS5. In the time domain, the RS resources on different mini-slots can be transmitted in different beam directions. At this time, the transmission beam of the PSCCH can be the same as the transmission beam direction of the associated RS; or the PSCCH and its associated RS on different mini-slots are all transmitted in the same beam direction.

[0101] Method 5: As Figure 8 shown, for the mini-slot structure, one time slot is divided into multiple mini-slots. Each mini-slot contains an AGC symbol and a symbol carrying the PSCCH and the associated RS. In the frequency domain, the beam scanning channel occupies L sub-channels or L PRBs. The multiplexing method of the PSCCH and the associated RS within each mini-slot is FDM. The beam scanning channels in different mini-slots can be transmitted in different beam directions. At this time, the transmission beam of the PSCCH can be the same as the transmission beam direction of the associated RS; or the beam scanning channels in all mini-slots are transmitted in the same beam direction..

[0102] Method 6: Refer to Figure 9, the multiplexing method of PSCCH and RS is TDM+FDM, the multiplexing method of PSCCH is FDM+TDM, and the multiplexing method of RS is TDM or TDM+FDM. In the time domain, symbols within a time slot are divided into different RS resources. In the frequency domain, each RS resource occupies L sub-channels or L PRBs and is multiplexed with PSCCH in a comb manner. Different RS resources in the time domain are associated with a PSCCH. For example, RS1, RS2, RS3, and RS4 are associated with PSCCH1. In the time domain, different symbols of RS resources can be transmitted in different beam directions. At this time, the transmission beam of PSCCH can be the same as or cover the transmission beam direction of the associated RS; or both PSCCH and the associated RS are transmitted in the same beam direction.

[0103] It should be noted that Figures 4 to 9 in, one RS resource in the time domain corresponds to one beam scanning resource in the time domain.

[0104] It should be noted that the number of time domain symbols, the starting symbol position, and the occupied time domain symbol position pattern information of RS in a time slot can be determined by configuration or pre-configuration information. The starting RE position, starting PRB position, the number of occupied PRBs or sub-channels, and the comb mapping structure in the frequency domain are also determined by configuration or pre-configuration information.

[0105] In some embodiments, the physical direct link control channel and / or the physical direct link shared channel are used to carry at least one of the following information:

[0106] Source identifier;

[0107] Destination identifier;

[0108] Application service information;

[0109] Application ID;

[0110] Beam scanning resource group ID;

[0111] Beam ID;

[0112] Time-frequency indication information;

[0113] Reference signal indication information;

[0114] Beam measurement assistance information.

[0115] 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 ID, priority information, indication bit, modulation and coding method, modulation and coding strategy MCS table indication, hybrid automatic repeat request HARQ-related information, reserve bit.

[0116] It should be noted that the above information in this embodiment is preferentially 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.

[0117] Optionally, the reference signal indication information includes at least one of the following

[0118] Time domain position information of the reference signal;

[0119] Frequency domain configuration information of the reference signal;

[0120] Number of ports of the reference signal;

[0121] Sequence information of the reference signal.

[0122] Among them, the time domain position information of the reference signal includes at least one of the following:

[0123] Time domain pattern information of the reference signal;

[0124] Time domain start symbol position information of the reference signal;

[0125] Time domain symbol number information of the reference signal.

[0126] Among them, the frequency domain configuration information of the reference signal includes at least one of the following:

[0127] Frequency domain pattern information of the reference signal (such as start RE, comb size, comb offset, Cyclicshift / OCC);

[0128] Frequency domain start PRB position information of the reference signal;

[0129] Frequency domain start sub-channel position information of the reference signal;

[0130] Frequency domain occupied PRB number and / or sub-channel number information of the reference signal;

[0131] Frequency domain shift information of the reference signal (i.e., the number of PRBs offset relative to the frequency domain reference point);

[0132] Among them, the beam measurement assistance information includes at least one of the following:

[0133] Beam index information; among them, the beam index information can be indicated by the port indicator field of the reference signal, or by the reference signal sequence indication, or by the combination of the port and the sequence.

[0134] Beam number information; among them, the beam number information includes: the total number of different beam directions represented by the transmitted reference signal (the total number of narrow beams corresponding to the current wide beam), and the total number of different beam directions of the transmitted control channel (the total number of wide beams).

[0135] Beam resource indication information; wherein, the beam resource indication information includes resource indication information reserved by the current device for all transmission beams.

[0136] In some embodiments, the above method further includes:

[0137] Determine the type of beam scanning resource group included in the first resource pool according to configuration or pre-configuration information;

[0138] The type of the beam scanning resource group is the first type or the second type;

[0139] The first type is: the beam scanning resource group includes M×N time slots, and only one beam scanning resource is included in one time slot in the time domain;

[0140] The second type is: the beam scanning resource group includes X time slots, and m beam scanning resources are included in one time slot in the time domain; wherein, X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resource.

[0141] Wherein, Ceil means rounding up.

[0142] It should be noted that the above M×N time slots can be M×N consecutive time slots used for beam scanning. Similarly, the X time slots can be consecutive time slots used for beam scanning.

[0143] It should be noted that when the M×N time slots or the X time slots are consecutive time slots, the time slots adjacent to the time slots used for transmitting the beam scanning channel may include time slots dedicated to beam reporting, such as PSFCH feedback time slots.

[0144] Optionally, X can 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).

[0145] Specifically, the frequency domain positions of the beam scanning resources in the beam scanning resource group are the same or different.

[0146] Optionally, multiple orthogonal beam scanning resource groups are included on the M×N time slots or the X time slots.

[0147] Exemplarily, as Figure 10 shown, which shows a schematic diagram of the type of the beam scanning resource group being the first type. Assume that the parameters M and N configured or pre-configured by the higher layer are both 4, a beam scanning resource occupies one time slot (slot) in the time domain and one sub-channel in the frequency domain, and one beam scanning resource is included in each of the 16 time slots in the time domain, forming a beam scanning resource group (such asFigure 10 (resources marked with medium twill), and further within 16 time slots, there are multiple orthogonal beam scanning resource groups, and each beam scanning resource group can correspond to an ID. Figure 10 Within a beam scanning resource group, the frequency domain positions of the beam scanning resources are the same.

[0148] Exemplarily, as Figure 11 shown, it shows a schematic diagram of the type of the beam scanning resource group being the second type. Assume that the parameters M and N configured or pre-configured by the higher layer are both 4. In the time domain, one time slot is divided into four RS resources (i.e., m = 4), and one sub-channel is occupied in the frequency domain without comb multiplexing. According to X = ceil(M * N / m), each of the 4 time slots in the time domain includes four beam scanning resources, forming a beam scanning resource group (such as Figure 11 (resources marked with medium twill), and further within 4 time slots, there are multiple orthogonal beam scanning resource groups, and each beam scanning resource group can correspond to an ID. Figure 11 Within a beam scanning resource group, the frequency domain positions of the beam scanning resources are the same.

[0149] Exemplarily, as Figure 12 shown, it shows a schematic diagram of the type of the beam scanning resource group being the second type. Assume that the parameters M and N configured or pre-configured by the higher layer are both 4. In the time domain, one time slot is divided into four RS resources (i.e., m = 4), and one sub-channel is occupied in the frequency domain with comb multiplexing. According to X = ceil(M * N / m), each of the 4 time slots in the time domain has four beam scanning resources, forming a beam scanning resource group (such as Figure 12 (resources marked with medium twill), and further within 4 time slots, there are multiple orthogonal beam scanning resource groups, and each beam scanning resource group can correspond to an ID. Figure 12 Within a beam scanning resource group, the frequency domain positions of the beam scanning resources are the same.

[0150] In addition, different beam scanning resource groups may have the same time domain position and different frequency domain positions. For example, Figure 12 in, the time domain resources of beam scanning resource group ID 1 and beam scanning resource group ID 2 are the same, and they are comb multiplexed on the corresponding sub-channels in the frequency domain.

[0151] In some embodiments, determining the type of the beam scanning resource group included in the first resource pool according to the configuration or pre-configuration information includes:

[0152] Obtaining a beam switching capability indication according to the configuration or pre-configuration information;

[0153] When the beam switching capability indicates that the first terminal does not support beam switching within a time slot, determine that the beam scanning resource group included in the first resource pool is of the first type;

[0154] When the beam switching capability indicates that the first terminal supports beam switching within a time slot, determine that the beam scanning resource group included in the first resource pool is of the second type.

[0155] In specific implementation, when the beam switching capability indication information is the first value, the type of the beam scanning resource group is: one beam scanning resource is one time slot in the time domain or there is only one beam scanning channel resource within one time slot, and in the frequency domain, it is determined according to the frequency domain configuration information in the beam scanning resource configuration information; thus, within consecutive M×N time slots for beam scanning channels, each time slot has one beam scanning resource, and a total of M×N beam scanning resources form a beam scanning resource group; among them, the slot index of the starting beam scanning resource of a beam scanning resource group is M×N×k or M×N×k + the time domain offset value of the beam scanning resource group, where k is a non - negative integer.

[0156] In specific implementation, when the beam switching capability indication information is the second value, the beam scanning resource group is: within one time slot in the time domain, there are multiple beam scanning resources m, and in the frequency domain, it is determined according to the frequency domain configuration information in the beam scanning channel resource configuration information; thus, within consecutive X time slots for beam scanning channels, each time slot has m beam scanning resources (the m resources are orthogonal in the time domain), and a total of X×m beam scanning resources form 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 + the time domain offset value of the beam scanning resource group, where k is a non - negative integer.

[0157] In the above - mentioned embodiments, since when the beam scanning resource group is of the first type, one time slot includes one beam scanning resource and beam switching within one time slot is not required, when the beam switching capability indicates that the first terminal does not support beam switching within one time slot, it is determined that the beam scanning resource group included in the first resource pool is of the first type. Similarly, since when the beam scanning resource group is of the second type, one time slot includes multiple beam scanning resources and beam switching within one time slot can be performed, when the beam switching capability indicates that the first terminal supports beam switching within one time slot, it is determined that the beam scanning resource group included in the first resource pool is of the second type.

[0158] In some embodiments, the sending of the beam scanning channel on the target beam scanning resource group includes:

[0159] When the target beam scanning resource group is of the first type, the beam scanning channel is transmitted in the first manner or the second manner;

[0160] When the target beam scanning resource group is of the second type, the beam scanning channel is transmitted in the third manner or the fourth manner;

[0161] Wherein, the first manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and transmitting the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0162] The second manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and transmitting the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset;

[0163] The third manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and transmitting the beam scanning channel using different beam directions or transmitting the reference signal in the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0164] The fourth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and transmitting the beam scanning channel using the same beam direction or transmitting the reference signal in the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset.

[0165] Exemplarily, refer to Figure 13 , which shows a schematic diagram of the beam scanning resource group being of the first type and transmitting the beam scanning channel in the first manner. Both M and N are taken as 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 the beam scanning channel is transmitted using different beam directions (a1, a2, a3, and a4) on the beam scanning resources in each resource subset; correspondingly, on the second terminal side, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and the beam scanning channel is received using the same beam direction (b1, b2, b3, or b4) on the beam scanning resources in each resource subset.

[0166] Exemplarily, refer to Figure 14, which shows a schematic diagram of a beam scanning resource group of the first type and transmitting a beam scanning channel in a second manner. Both M and N are taken as 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 transmitted using the same beam direction (a1, a2, a3, or a4); correspondingly, 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 beam scanning channel is received using different beam directions (b1, b2, b3, and b4).

[0167] Exemplarily, refer to Figure 15 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in a third manner. Both M and N are taken as 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 4 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 beam scanning channel is transmitted using different beam directions (a1, a2, a3, and a4) or the reference signal in the beam scanning channel is transmitted using different beam directions; correspondingly, on the second terminal side, every 4 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 beam scanning channel is received using the same beam direction (b1, b2, b3, or b4).

[0168] Exemplarily, refer to Figure 16 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in a fourth manner. Both M and N are taken as 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 4 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 beam scanning channel is transmitted using the same beam direction (a1, a2, a3, or a4) or the reference signal in the beam scanning channel is transmitted using the same beam direction; correspondingly, on the second terminal side, every 4 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 beam scanning channel is received using different beam directions (b1, b2, b3, and b4).

[0169] Exemplarily, refer toFigure 17 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in the 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 3 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 transmit the beam scanning channel or different beam directions are used to transmit the reference signal in the beam scanning channel; correspondingly, on the second terminal side, every 3 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.

[0170] Exemplarily, refer to Figure 18 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel 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 5 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 transmit the beam scanning channel or the same beam direction is used to transmit the reference signal in the beam scanning channel; correspondingly, on the second terminal side, every 5 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.

[0171] It should be noted that Figure 17 and Figure 18 the application of the last beam scanning resource position in depends on the UE implementation. For example, it can be used for the first terminal side to transmit a reference signal and / or the second terminal side to receive a reference signal and measure.

[0172] In some embodiments, the above beam scanning method further includes:

[0173] When transmitting the beam scanning channel in the third manner and using different beam directions to transmit the reference signal in the beam scanning channel on the beam scanning resources in each resource subset, in one time slot, the beam of the physical sidelink control channel for transmitting the beam scanning channel includes the beam direction for transmitting the reference signal in the beam scanning channel in this time slot;

[0174] When the beam scanning channel is sent in the fourth manner, and the reference signal in the beam scanning channel is sent in the same beam direction on the beam scanning resources in each resource subset, on one time slot, the beam of the physical sidelink control channel for sending the beam scanning channel includes the beam direction for sending the reference signal in the beam scanning channel on this time slot.

[0175] Exemplarily, for Figure 4 the beam scanning channel example shown, the beams for sending the PSCCH include the beam directions for sending the reference signals RS1, RS2, RS3, and RS4.

[0176] In the above embodiments, by making the beam of the physical sidelink control channel for sending the beam scanning channel include the beam direction for sending the reference signal in the beam scanning channel on this time slot, the receiving terminal can decode the PSCCH to obtain information related to reference signal measurement and complete beam measurement.

[0177] In some embodiments, the above beam scanning method further includes:

[0178] In the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, then the M beam directions supported by the first terminal correspond one-to-one with the beam scanning resources on the M consecutive time slots;

[0179] In the first manner, if the number of beam directions supported by the first terminal is less than M, then each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots;

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

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

[0182] 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;

[0183] In the second manner or the fourth manner, 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 and used between different resource subsets.

[0184] For example, for Figure 13, if the values of M and N configured or pre-configured at the higher layer 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), then a1, a2, a3, and a4 respectively correspond one-to-one with the 4 beam scanning resources in a resource subset; if the first terminal supports 3 beam scanning directions (a1, a2, and a3), then a1, a2, a3, and a1 correspond one-to-one with the 4 beam scanning resources in a resource subset, or a1, a2, a3, and a2 correspond one-to-one with the 4 beam scanning resources in a resource subset, or a1, a2, a3, and a3 correspond one-to-one with the 4 beam scanning resources in a resource subset, or a1, a2, and a3 correspond one-to-one with 3 beam scanning resources in a resource subset (one beam scanning resource does not send a beam scanning channel).

[0185] In the above embodiments, when the number of beams supported by the first terminal is less than the number of directions M of the transmission beams configured or pre-configured at the higher layer, at least traverse the beams supported by the first terminal.

[0186] 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:

[0187] Obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0188] When the target beam scanning resource group is of the first type, if the beam scanning mode indication is to send a beam scan, send the beam scanning channel in the first manner;

[0189] When the target beam scanning resource group is of the first type, if the beam scanning mode indication is to receive a beam scan, send the beam scanning channel in the second manner.

[0190] Specifically, when the beam scanning resource group is of the first type, when the beam scanning mode indication is the third value, it indicates to send a beam scan, and the beam scanning channel is sent in the first manner; when the beam scanning mode indication is the fourth value, it indicates to send a beam scan, and the beam scanning channel is sent in the second manner.

[0191] 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:

[0192] Obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0193] When the target beam scanning resource group is of the second type, if the beam scanning mode indicates transmit beam scanning, the beam scanning channel is transmitted using the third method;

[0194] When 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 transmitted using the fourth method.

[0195] In specific implementation, when the beam scanning resource group is of the second type, when the beam scanning mode is indicated as the third value, transmit beam scanning is indicated, and the beam scanning channel is transmitted using the third method; when the beam scanning mode is indicated as the fourth value, transmit beam scanning is indicated, and the beam scanning channel is transmitted using the fourth method.

[0196] In some embodiments, the method further includes:

[0197] Determine the type of the beam scanning resource group included in the first resource pool according to configuration or pre-configured information;

[0198] The type of the beam scanning resource group is the third type or the fourth type;

[0199] The third type is: the beam scanning resource group includes M + N time slots, and one time slot in the time domain only contains one beam scanning resource;

[0200] 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; where X = ceil(M / m) + ceil(N / m), and m is determined according to the time domain configuration information of the beam scanning resource.

[0201] Where, Ceil means rounding up, and M, N, X, and m are positive integers.

[0202] It should be noted that the above M + N time slots can be M + N consecutive time slots, or can also be M + N discrete time slots; similarly, X time slots can be consecutive time slots, or can also be X discrete time slots.

[0203] It should be noted that when the M + N time slots or X time slots are consecutive time slots, the time slots adjacent to the time slots for transmitting the beam scanning channel may include time slots dedicated to beam reporting, such as PSFCH feedback time slots.

[0204] In specific implementation, for the third type, the parameters configured or pre-configured by the higher layer are M and N. A beam scanning resource occupies one time slot in the time domain. M + N consecutive beam scanning resources in the time domain form a beam scanning resource group. Optionally, multiple orthogonal beam scanning resource groups are included within M + N time slots, and each beam scanning resource group corresponds to an ID.

[0205] Exemplarily, as Figure 19 In [reference], both M and N configured or pre-configured by the higher layer are taken as 4. M + N = 8 consecutive beam scanning resources in the time domain form a beam scanning resource group.

[0206] In specific implementation, for the fourth type, the parameters configured or pre-configured by the higher layer are M and N. One time slot in the time domain contains m beam scanning resources. ceil(M / m) + ceil(N / m) consecutive beam scanning resources in the time domain form a beam scanning resource group. Optionally, multiple orthogonal beam scanning resource groups are included within ceil(M / m) + ceil(N / m) time slots, and each beam scanning resource group corresponds to an ID.

[0207] Exemplarily, as Figure 20 In [reference], the parameters M and N configured or pre-configured by the higher layer are both taken as 4. One time slot in the time domain contains 4 beam scanning resources. ceil(M / m) + ceil(N / m) = 1 + 1 = 2 consecutive beam scanning resources in the time domain form a beam scanning resource group.

[0208] In some embodiments, transmitting a beam scanning channel on the target beam scanning resource group described above includes:

[0209] When the target beam scanning resource group is of the third type, the beam scanning channel is transmitted in manner A;

[0210] When the target beam scanning resource group is of the fourth type, the beam scanning channel is transmitted in manner B;

[0211] Wherein, manner A is: on the first N beam scanning resources within the beam scanning resource group, a wide beam or an omnidirectional beam is used to transmit the beam scanning channel. On the subsequent M beam scanning resources within the beam scanning resource group, different beam directions are used to transmit the beam scanning channel; wherein, if the number of beam directions supported by the first terminal is greater than or equal to M, then M different directions of beams supported by the first terminal are used to transmit the beam scanning channel; if the number of beam directions supported by the first terminal is less than M, then when transmitting the beam scanning channel, at least the number of beam directions supported by the first terminal is traversed;

[0212] Among them, Mode 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 send the beam scanning channel. On the first M beam scanning resources in the subsequent ceil(M / m) time slots within the beam scanning resource group, the beam scanning channel is sent using different beam directions; where, if the number of beam directions supported by the first terminal is greater than or equal to M, M different beam directions supported by the second terminal are used to send the beam scanning channel; 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 sending the beam scanning channel.

[0213] Correspondingly, 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;

[0214] Among them, Mode C is as follows:

[0215] The second terminal uses different beam directions to receive the beam scanning channel on the first N beam scanning resources within the beam scanning resource group; where, if the number of beam directions supported by the second terminal is greater than or equal to N, the second terminal uses N different beam directions 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;

[0216] The second terminal determines, according to the received beam measurement in the first N beam scanning resources, the receiving beam with the largest RSRP measurement value of the reference signal received by the second terminal as the first target receiving beam;

[0217] The second terminal uses the first target receiving beam to receive the beam scanning channel on the last M beam scanning resources within the beam scanning resource group;

[0218] Among them, Mode D is as follows:

[0219] The second terminal uses different beam directions to receive the beam scanning channel on the first N beam scanning resources in the first ceil(N / m) time slots within the beam scanning resource group; where, if the number of beams supported by the second terminal is greater than or equal to N, N different beam 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;

[0220] The second terminal determines that the receiving beam with the largest RSRP measurement value of the reference signal received by the second terminal is the second target receiving beam according to the receiving beam measurements in the first N beam scanning resources among the first ceil(N / m) time slots;

[0221] The second terminal uses the second target receiving beam to receive the beam scanning channel on the first M beam scanning resources in the last ceil(N / m) time slots within the beam scanning resource group.

[0222] Exemplarily, as Figure 19 In, the higher layer configures or pre-configures M and N to be 4. There are M+N = 8 consecutive beam scanning resources in the time domain, forming 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~a4, and the four beams of the second terminal are b1~b4. a0 is an omnidirectional beam or wide beam of the first terminal, and b1 is the determined first target receiving beam of the second terminal, where a0 is not included in the M beams supported by the first terminal. On the first 4 beam scanning resources within the beam scanning resource group, use an omnidirectional beam or wide beam a0 to send the beam scanning channel; on the last 4 beam scanning resources within the beam scanning resource group, use different beam directions (a1~a4) to send the beam scanning channel.

[0223] Correspondingly, the second terminal uses different beam directions to receive the beam scanning channel on the first 4 beam scanning resources within the beam scanning resource group; determines the beam b1 as the first target receiving beam according to the receiving beam measurements in the first 4 beam scanning resources; and uses the beam b1 to receive the beam scanning channel on the last 4 beam scanning resources within the beam scanning resource group.

[0224] Exemplarily, as Figure 20 In, the higher layer configures or pre-configures M and N to be 4. One time slot in the time domain contains 4 beam scanning resources, and 2 (i.e., ceil(M / m)+ceil(N / m) = 1+1 = 2) consecutive beam scanning resources in the time domain form a beam scanning resource group, that is, the beam scanning resource group is of the fourth type. The four beams of the first terminal are a1~a4, and the four beams of the second terminal are b1~b4. a0 is an omnidirectional beam or wide beam of the first terminal, and b1 is the determined second target receiving beam of the second terminal, where a0 is not included in the M beams supported by the first terminal. On the first 4 beam scanning resources in the first 1 time slot within the beam scanning resource group, use an omnidirectional beam or wide beam a0 to send the beam scanning channel; on the first 4 beam scanning resources in the last 1 time slot within the beam scanning resource group, use different beam directions (a1~a4) to send the beam scanning channel.

[0225] Accordingly, the second terminal receives the beam scanning channel using different beam directions on the first 4 beam scanning resources in the first 1 time slot within the beam scanning resource group; determines beam b1 as the second target receiving beam according to the reception beam measurements on the first 4 beam scanning resources in the first 1 time slot; and receives the beam scanning channel using beam b1 on the first 4 beam scanning resources in the latter 1 time slot within the beam scanning resource group.

[0226] In some embodiments, the selecting a target beam scanning resource group from the first resource pool according to configuration or pre-configuration information includes:

[0227] Excluding a 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 sensing information, to obtain a set of available candidate beam scanning resource groups;

[0228] Selecting a target beam scanning resource group according to the set of available candidate beam scanning resource groups.

[0229] Wherein, the sensing information includes at least one of the following:

[0230] Frequency domain information of the beam scanning resources occupied by a third terminal;

[0231] Time domain information of the beam scanning resources occupied by the third terminal;

[0232] Transmission priority value of the beam scanning channel transmitted by the third terminal;

[0233] Beam scanning resource group ID occupied by the third terminal;

[0234] Reservation period of the beam scanning resources of the third terminal;

[0235] Reference signal received power RSRP measurement value of the reference signal transmitted by the third terminal.

[0236] In some embodiments, the first beam scanning resource group satisfies the following conditions:

[0237] The first beam scanning resource group or a resource group that is periodically reserved with the first beam scanning resource group overlaps with a second beam scanning resource group; the second beam scanning resource group includes: the 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;

[0238] Wherein, the third terminal satisfies at least one of the following conditions:

[0239] The maximum RSRP measurement value among the RSRP measurement values of the reference signals transmitted by the third terminal in the occupied beam scanning resource group is higher than a first threshold;

[0240] 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.

[0241] For specific implementation, refer to Figure 30 , in the time domain, the resource selection window and the sensing window contain an integer number of beam scanning resource groups. The set of all beam scanning resource groups in the resource selection window is the candidate beam scanning resource group set. The first terminal performs beam measurement using different receiving beams in the sensing window to obtain sensing information, decodes the time-frequency position and period of the beam scanning resource group occupied by the third terminal, and obtains the measurement value RSRP (any beam pair ai and bi) between any one of the receiving beam of the first terminal and 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 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 any beam pair ai and bi is higher than the first threshold, then the first terminal excludes the first beam scanning resource group from the candidate beam scanning resource group set.

[0242] It should be noted that the reservation period of the resource group 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 periodically reserved with the second beam scanning resource group is the beam scanning resource reservation period of the third terminal.

[0243] In some embodiments, after sending the beam scanning channel on the beam scanning resource group, the method further includes:

[0244] Receiving, on the physical direct link feedback channel PSFCH time domain resource corresponding to the beam scanning resource in the beam scanning resource group, a beam measurement report sent by the second terminal using a first beam;

[0245] Wherein, every N consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and each beam scanning resource in each resource subset corresponds to a PSFCH time domain resource, and the first beam is the beam used for sending 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, and one PSFCH time domain resource corresponds to one beam scanning resource in each resource subset, and the first beam includes the beam used for sending the beam scanning channel on the beam scanning resource corresponding to the PSFCH time domain resource.

[0246] Optionally, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0247] Specifically, the time domain configuration method of the PSFCH resource includes:

[0248] One or more PSFCH time domain resources can be configured on the last few symbols of a time slot;

[0249] A time slot is divided into multiple PSFCH time domain resources.

[0250] Specifically, when implemented, the method for determining the time domain position of the PSFCH in each beam scanning resource group includes at least one of the following:

[0251] Related to the PSFCH configuration offset value and M, each of the M PSFCH resources has an offset value;

[0252] Related to the PSFCH configuration offset value and M, the M PSFCH resources are on consecutive time slots, and the first resource of the M PSFCH resources is determined according to the offset value;

[0253] Related to the PSFCH configuration offset value, M, and the PSFCH interval, the first resource of the M PSFCH resources has an offset value, and the other PSFCH resources are different from the first resource by an integer number of PSFCH intervals.

[0254] Exemplarily, referring to Figure 21 , which shows a schematic diagram of the PSFCH time domain position for an embodiment shown in Figure 13 . As shown in Figure 21 , assuming that the offset value configured for the PSFCH is 4 time slots, then there is one PSFCH time domain resource on each of the M ( Figure 13 where M is taken as 4 in Figure 21 ) time slots starting from the 5th time slot corresponding to each beam scanning resource group, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrow in Figure 13 , in the time domain, every M time slot resources in a beam scanning resource group form a resource subset. The first resource in each resource subset, a total of N resources, corresponds to PSFCH1 in the subsequent beam scanning resource group. Similarly, the second resource in each resource subset, a total of N ( Figure 13 where N is taken as 4 in

[0255] Exemplarily, referring to Figure 22 , which shows another schematic diagram of the PSFCH time domain position for an embodiment shown in Figure 13 . As shown in Figure 22In it, assuming that the offset value configured for the PSFCH is 4 time slots, then starting from the 5th time slot corresponding to each beam scanning resource group, there is one or more time slots, and these time slots contain at least M ( Figure 13 where M is 4) PSFCH time domain resources, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example, Figure 22 as indicated by the arrow in it, every M time slot resources in one beam scanning resource group in the time domain form a resource subset, and the first resource of each resource subset has a total of N ( Figure 13 where N is 4) resources corresponding to PSFCH1 in the subsequent beam scanning resource group. Similarly, the second resource of each resource subset has a total of N resources corresponding to PSFCH2 in the subsequent beam scanning resource group, and so on.

[0256] Exemplarily, refer to Figure 23 , which shows a schematic diagram of the PSFCH time domain position for an embodiment shown in Figure 14 . As in Figure 23 , assuming that the offset value configured for the PSFCH is 4 time slots, then there is one PSFCH time domain resource on each of the 4 time slots starting from the 5th slot corresponding to each beam scanning resource group, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example, Figure 23 as indicated by the arrow in it, 4 time slot resources in one beam scanning resource group in the time domain form a resource subset, the first resource subset corresponds to PSFCH1 in the subsequent beam scanning resource group, and similarly, the second resource subset corresponds to PSFCH2 in the subsequent beam scanning resource group, and so on.

[0257] Exemplarily, refer to Figure 24 , which shows a schematic diagram of the PSFCH time domain position for another embodiment shown in Figure 14 . As in Figure 24 , assuming that the offset value configured for the PSFCH is 4 time slots, then starting from the 5th slot corresponding to each beam scanning resource group, there is one or more time slots, and these time slots contain at least M PSFCH time domain resources, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example, as indicated by the arrow in the following figure, every N time slot resources in one beam scanning resource group in the time domain form a resource subset, the beam scanning resource in the first resource subset corresponds to PSFCH1 in the subsequent beam scanning resource group, and similarly, the beam scanning resource in the second resource subset corresponds to PSFCH2 in the subsequent beam scanning resource group, and so on.

[0258] Exemplarily, refer to Figure 25 , which shows a schematic diagram of the PSFCH time domain position for an embodiment shown in Figure 15 . As inFigure 25 In [description], assuming that the offset value configured for the PSFCH is one time slot, there is 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, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example Figure 25 as indicated by the arrow in [description], every M ( Figure 15 where M = 4 in [description]) beam scanning resources in a beam scanning resource group in the time domain form a resource subset. The first resource of each resource subset has a total of N ( Figure 15 where N = 4 in [description]) resources corresponding to PSFCH1 in the subsequent beam scanning resource group. Similarly, the second resource of each resource subset has a total of N resources corresponding to PSFCH2 in the subsequent beam scanning resource group, and so on.

[0259] Exemplarily, referring to Figure 26 [figure], which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 16 [description]. As in Figure 26 [description], assuming that the offset value configured for the PSFCH is one time slot, there is 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, respectively corresponding to different beam scanning resources in the previous beam scanning resource group. For example Figure 26 as indicated by the arrow in [description], every N (here N = 4) beam scanning resources in a beam scanning resource group in the time domain form a resource subset. The beam scanning resources in the first resource subset correspond to PSFCH1 in the subsequent beam scanning resource group. Similarly, the beam scanning resources in the second resource subset correspond to PSFCH2 in the subsequent beam scanning resource group, and so on.

[0260] It should be noted that in the case where the beam scanning resource group is of the third type, the last M beam scanning resources in the beam scanning resource group respectively correspond to one PSFCH time domain resource, and these PSFCH resources are the PSFCH time domain resources in the next beam scanning resource group.

[0261] 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, on the target beam scanning resource, the second terminal receives the highest reference signal RSRP measurement value of the beam scanning channel and it is higher than a threshold, or the reference signal RSRP measurement value received by the second terminal on the target beam scanning resource is higher than a threshold.

[0262] Exemplarily, referring to Figure 27 [figure], which shows a schematic diagram of the PSFCH time domain position for the embodiment shown in Figure 18 [description]. As inFigure 27 In it, assuming that the offset value configured for the PSFCH is 4 time slots, there is one PSFCH time domain resource on each of the M (here M = 4) time slots starting from the 5th time slot corresponding to each beam scanning resource group. Figure 27 In the beam scanning resource group indicated by the arrow in it, the first / second / third / fourth resources among the last M (here M = 4) beam scanning resources respectively correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH 3 / PSFCH 4 in the next beam scanning resource group.

[0263] Exemplarily, refer to Figure 28 , which shows another schematic diagram of the PSFCH time domain position for the Figure 18 shown embodiment. As in Figure 28 it, assuming that the offset value configured for the PSFCH is 4 time slots, there is 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. Figure 28 In the beam scanning resource group indicated by the arrow in it, the first / second / third / fourth resources among the last M (here M = 4) beam scanning resources respectively correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH 3 / PSFCH 4 in the next beam scanning resource group.

[0264] It should be noted that in the case where 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 one PSFCH time domain resource, and this PSFCH resource is the PSFCH resource in the next beam scanning resource group.

[0265] 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 on the last ceil(M / m) time slots; wherein, on the target beam scanning resource, the second terminal receives the highest measured value of the reference signal RSRP of the beam scanning channel and it is higher than a threshold, or the measured value of the reference signal RSRP of the beam scanning channel received by the second terminal on the target beam scanning resource is higher than a threshold.

[0266] Exemplarily, refer to Figure 29 , which shows another schematic diagram of the PSFCH time domain position for the Figure 19 shown embodiment. As in Figure 29 it, assuming that the PSFCH configuration offset value is 1, there is one or more time slots starting from the 2nd 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. Figure 29Among the beam scanning resource groups indicated by the arrows, the first / second / third / fourth resources among the first M beam scanning resources on the last ceil(M / m) time slots correspond one-to-one to PSFCH1 / PSFCH2 / PSFCH3 / PSFCH4 in the next beam scanning resource group respectively.

[0267] Second Embodiment

[0268] As Figure 31 shown, the second embodiment of the present invention provides a beam scanning method applied to a second terminal, which specifically includes the following steps:

[0269] Step 201: Determine the type of the beam scanning resource group in the first resource pool according to the configured or pre-configured 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 configured or pre-configured transmission beam directions, and N is the number of configured or pre-configured reception beam directions.

[0270] Step 202: Receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0271] 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 configured or pre-configured transmission beam directions, and N is the number of configured or pre-configured reception beam directions. By the first terminal sending the beam scanning channel on the target beam scanning resource group, the second terminal can perform beam scanning or the first terminal can perform beam scanning. Through beam scanning, beam pairing of the terminal in the millimeter wave band can be supported, and data transmission can be performed using directional beams, which is applicable to the millimeter wave communication technology of the direct link.

[0272] It should be noted that the second embodiment of the present application is the corresponding counterclaim to the first embodiment. The above relevant explanations for the first terminal side are applicable to the second terminal. To avoid repetition, they will not be elaborated here.

[0273] In some embodiments, the configured or pre-configured information includes at least one of the following:

[0274] Time domain configuration information of beam scanning resources;

[0275] Frequency domain configuration information of beam scanning resources;

[0276] Reservation period of beam scanning resources;

[0277] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0278] Number of transmission beam directions M;

[0279] The number N of directions of the receiving beam;

[0280] Set of beam scanning resource group IDs;

[0281] Time domain offset value of the beam scanning resource group;

[0282] Beam scanning mode indication;

[0283] Beam switching ability indication;

[0284] Configuration period of the Physical Sidelink Feedback Channel (PSFCH);

[0285] Configuration offset value of the PSFCH;

[0286] Frequency domain configuration information of the first resource pool;

[0287] Time domain configuration information of the first resource pool.

[0288] In some embodiments, the beam scanning resource group is one of the following types:

[0289] The first type, where the first type is: the beam scanning resource group includes M×N time slots, and one time slot in the time domain contains only one beam scanning resource;

[0290] The second type, where 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; where X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resource.

[0291] 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:

[0292] Obtaining the beam switching ability indication according to the configuration or pre-configuration information;

[0293] When the beam switching ability indicates that the first terminal does not support beam switching within one time slot, determining that the beam scanning resource group is the first type;

[0294] When the beam switching ability indicates that the first terminal supports beam switching within one time slot, determining that the beam scanning resource group is the second type.

[0295] In some embodiments, receiving the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group includes:

[0296] When the beam scanning resource group is the first type, receiving the beam scanning channel by using the fifth method or the sixth method;

[0297] When the beam scanning resource group is of the second type, the beam scanning channel is received in the seventh manner or the eighth manner;

[0298] Among them, the fifth manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and receiving the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset;

[0299] The sixth manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and receiving the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

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

[0301] The eighth manner is: dividing the beam scanning resources on every N consecutive time domains into a resource subset, and receiving the beam scanning channel using different beam directions on the beam scanning resources in each resource subset.

[0302] Exemplarily, referring to Figure 13 , which shows a schematic diagram of sending a beam scanning channel in the first manner when the beam scanning resource group is of the first type. Both M and N are taken as 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 side of the first terminal, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and the beam scanning channel is sent using different beam directions (a1, a2, a3, and a4) on the beam scanning resources in each resource subset; correspondingly, on the side of the second terminal, the beam scanning resources on every 4 consecutive time slots are divided into a resource subset, and the beam scanning channel is received using the same beam direction (b1, b2, b3, or b4) on the beam scanning resources in each resource subset.

[0303] Exemplarily, referring to Figure 14, which shows a schematic diagram of a beam scanning resource group of the first type and transmitting a beam scanning channel in a second manner. Both M and N are taken as 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 transmitted using the same beam direction (a1, a2, a3, or a4); correspondingly, 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 beam scanning channel is received using different beam directions (b1, b2, b3, and b4).

[0304] Exemplarily, refer to Figure 15 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in a third manner. Both M and N are taken as 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 4 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 beam scanning channel is transmitted using different beam directions (a1, a2, a3, and a4) or the reference signal in the beam scanning channel is transmitted using different beam directions; correspondingly, on the second terminal side, every 4 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 beam scanning channel is received using the same beam direction (b1, b2, b3, or b4).

[0305] Exemplarily, refer to Figure 16 , which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in a fourth manner. Both M and N are taken as 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 4 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 beam scanning channel is transmitted using the same beam direction (a1, a2, a3, or a4) or the reference signal in the beam scanning channel is transmitted using the same beam direction; correspondingly, on the second terminal side, every 4 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 beam scanning channel is received using different beam directions (b1, b2, b3, and b4).

[0306] Exemplarily, refer toFigure 17 which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel 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 3 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 beam scanning channel is transmitted using different beam directions (a1, a2, and a3) or the reference signal in the beam scanning channel is transmitted using different beam directions; correspondingly, on the second terminal side, every 3 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 beam scanning channel is received using the same beam direction (b1, b2, b3, b4, or b5).

[0307] Exemplarily, refer to Figure 18 which shows a schematic diagram of a beam scanning resource group of the second type and transmitting a beam scanning channel in a 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 5 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 beam scanning channel is transmitted using the same beam direction (a1, a2, or a3) or the reference signal in the beam scanning channel is transmitted using the same beam direction; correspondingly, on the second terminal side, every 5 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 beam scanning channel is received using different beam directions (b1, b2, b3, b4, and b5).

[0308] In some embodiments, the above beam scanning method further includes:

[0309] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one to the N resource subsets;

[0310] In the fifth or seventh manner, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0311] In the sixth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond to the beam scanning resources on the N consecutive time slots one-to-one;

[0312] 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;

[0313] In the eighth 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 N consecutive beam scanning resources;

[0314] In the eighth 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 N consecutive beam scanning resources.

[0315] In some embodiments, when the type of the beam scanning resource group is the first type, receiving the beam scanning channel by using the fifth mode or the sixth mode includes:

[0316] Obtain a beam scanning mode indication according to configuration or pre-configuration information;

[0317] When the beam scanning resource group is of the first type, if the beam scanning mode indication indicates beam transmission scanning, receive the beam scanning channel by using the fifth mode;

[0318] When the beam scanning resource group is of the first type, if the beam scanning mode indication indicates beam reception scanning, receive the beam scanning channel by using the sixth mode.

[0319] 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 beam transmission scanning, and the fifth mode is used to transmit the beam scanning channel; when the beam scanning mode indication is the fourth value, it indicates beam transmission scanning, and the sixth mode is used to transmit the beam scanning channel.

[0320] In some embodiments, when the type of the beam scanning resource group is the second type, receiving the beam scanning channel by using the seventh mode or the eighth mode includes:

[0321] Obtain a beam scanning mode indication according to configuration or pre-configuration information;

[0322] When the type of the beam scanning resource group is the second type, if the beam scanning mode indication indicates beam transmission scanning, receive the beam scanning channel by using the seventh mode;

[0323] When 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 in the eighth manner.

[0324] In specific implementation, when the beam scanning resource group is the second type, when the beam scanning mode indicates the third value, it indicates transmitting beam scanning, and the beam scanning channel is transmitted in the seventh manner; when the beam scanning mode indicates the fourth value, it indicates transmitting beam scanning, and the beam scanning channel is transmitted in the eighth manner.

[0325] In some embodiments, the method further includes:

[0326] When a beam scanning channel sent by a first terminal is received on a 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, and the beam measurement report is obtained based on the beam measurement performed on receiving the beam scanning channel;

[0327] Wherein, the target beam scanning resource satisfies at least one of the following conditions:

[0328] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is the maximum value of the RSRP of the beam scanning channels received in the beam scanning resource group;

[0329] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold.

[0330] In some embodiments, the sending the beam measurement report on the PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group includes:

[0331] The beam measurement report is sent on the PSFCH corresponding to the target beam scanning resource using a second beam;

[0332] Wherein, the second beam includes the beam used for receiving the beam scanning channel on the target beam scanning resource;

[0333] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds 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 one PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

[0334] In some embodiments, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0335] For a specific explanation of this embodiment, please refer to the explanation of Figures 21 to 29 in the first embodiment. To avoid repetition, it will not be elaborated here.

[0336] Third Embodiment

[0337] As Figure 32 shown, an embodiment of the present invention provides a beam scanning device 3200, which is applied to a first terminal and includes:

[0338] A resource selection module 3201, configured to select a target beam scanning resource group from 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 configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams;

[0339] A first transmission module 3202, configured to transmit a beam scanning channel on the target beam scanning resource group.

[0340] Optionally, the beam scanning channel includes:

[0341] A physical sidelink control channel and a reference signal; or

[0342] A physical sidelink control channel, a reference signal, and a physical sidelink shared channel.

[0343] Optionally, the physical sidelink control channel and / or the physical sidelink shared channel are used to carry at least one of the following information:

[0344] Source identifier;

[0345] Destination identifier;

[0346] Application service information;

[0347] Application ID;

[0348] Beam scanning resource group ID;

[0349] Beam ID;

[0350] Time-frequency indication information;

[0351] Reference signal indication information;

[0352] Beam measurement assistance information.

[0353] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0354] Time-domain configuration information of beam scanning resources;

[0355] Frequency domain configuration information of beam scanning resources;

[0356] Reservation period of beam scanning resources;

[0357] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0358] Number of directions M of the transmit beam;

[0359] Number of directions N of the receive beam;

[0360] Set of beam scanning resource group IDs;

[0361] Time domain offset value of the beam scanning resource group;

[0362] Beam scanning mode indication;

[0363] Beam switching ability indication;

[0364] Configuration period of the physical direct link feedback channel PSFCH;

[0365] Configuration offset value of PSFCH;

[0366] Frequency domain configuration information of the first resource pool;

[0367] Time domain configuration information of the first resource pool.

[0368] Optionally, the above device 3200 further includes:

[0369] A configuration information determination module, configured to determine the type of the beam scanning resource group included in the first resource pool according to configuration or pre-configuration information;

[0370] The type of the beam scanning resource group is the first type or the second type;

[0371] The first type is: the beam scanning resource group includes M×N time slots, and one time slot in the time domain only contains one beam scanning resource;

[0372] 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; where X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

[0373] Optionally, the configuration information determination module includes:

[0374] A first determination unit, configured to obtain the beam switching ability indication according to the configuration or pre-configuration information;

[0375] A second determination unit, configured to determine 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 does not support beam switching within one time slot;

[0376] A third determination unit, 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 one time slot.

[0377] Optionally, the first transmission module 3201 includes:

[0378] A first transmission sub-module, configured to transmit the beam scanning channel in a first manner or a second manner when the target beam scanning resource group is of the first type;

[0379] A second transmission sub-module, configured to transmit the beam scanning channel in a third manner or a fourth manner when the target beam scanning resource group is of the second type;

[0380] Wherein, the first manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and transmitting the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0381] The second manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and transmitting the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset;

[0382] The third manner is: dividing every M consecutive beam scanning resources in the time domain into a resource subset, and transmitting the beam scanning channel using different beam directions or transmitting the reference signal in the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

[0383] The fourth manner is: dividing every N consecutive beam scanning resources in the time domain into a resource subset, and transmitting the beam scanning channel using the same beam direction or transmitting the reference signal in the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset.

[0384] Optionally, the apparatus 3200 further includes:

[0385] The first processing module is used to, when transmitting the beam scanning channel in the third manner and using different beam directions to transmit the reference signal in the beam scanning resources of each resource subset, on one time slot, the beam of the physical sidelink control channel for transmitting the beam scanning channel includes the beam direction for transmitting the reference signal in the beam scanning channel on this time slot;

[0386] The second processing module is used to, when transmitting the beam scanning channel in the fourth manner and using the same beam direction to transmit the reference signal in the beam scanning resources of each resource subset, on one time slot, the beam of the physical sidelink control channel for transmitting the beam scanning channel includes the beam direction for transmitting the reference signal in the beam scanning channel on this time slot.

[0387] Optionally, in the first manner, if the number of beam directions supported by the first terminal is greater than or equal to M, then the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources in the M consecutive time slots;

[0388] In the first manner, if the number of beam directions supported by the first terminal is less than M, then each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources in the M consecutive time slots;

[0389] In the third manner, if the number of beam directions supported by the first terminal is greater than or equal to M, then the M beam directions supported by the first terminal correspond one-to-one to the M consecutive beam scanning resources;

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

[0391] 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;

[0392] In the second manner or the fourth manner, if the number of beam directions supported by the first terminal is less than M, at least the beam directions supported by the first terminal are traversed and used between different resource subsets.

[0393] Optionally, the first transmission sub-module includes:

[0394] The first transmission unit is used to obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0395] A second transmitting unit, configured to, when the beam scanning resource group is of the first type, if the beam scanning mode indicates transmitting beam scanning, transmit the beam scanning channel in a first manner;

[0396] A third transmitting unit, configured to, when the beam scanning resource group is of the first type, if the beam scanning mode indicates receiving beam scanning, transmit the beam scanning channel in a second manner.

[0397] Optionally, the second transmitting sub-module includes:

[0398] A fourth transmitting unit, configured to obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0399] A fifth transmitting unit, configured to, when the beam scanning resource group is of the second type, if the beam scanning mode indicates transmitting beam scanning, transmit the beam scanning channel in the third manner;

[0400] A sixth transmitting unit, configured to, when the beam scanning resource group is of the second type, if the beam scanning mode indicates receiving beam scanning, transmit the beam scanning channel in the fourth manner.

[0401] Optionally, the resource selection module 3201 includes:

[0402] A first resource selection sub-module, configured to exclude a first beam scanning resource group from a set of candidate beam scanning resource groups included in the first resource pool according to the configuration or pre-configuration information and sensing information, to obtain an available set of candidate beam scanning resource groups;

[0403] A second resource selection sub-module, configured to select a target beam scanning resource group according to the available set of candidate beam scanning resource groups.

[0404] Optionally, the sensing information includes at least one of the following:

[0405] Frequency domain information of the beam scanning resource occupied by a third terminal;

[0406] Time domain information of the beam scanning resource occupied by the third terminal;

[0407] Transmission priority value of the beam scanning channel transmitted by the third terminal;

[0408] Beam scanning resource group ID occupied by the third terminal;

[0409] Reservation period of the beam scanning resource of the third terminal;

[0410] The reference signal received power (RSRP) measurement value of the reference signal sent by the third terminal.

[0411] Optionally, the first beam scanning resource group satisfies the following conditions:

[0412] 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;

[0413] Wherein, the third terminal satisfies at least one of the following conditions:

[0414] The maximum RSRP measurement value among the RSRP measurement values of the reference signals sent by the third terminal in the occupied beam scanning resource group is higher than the first threshold;

[0415] 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.

[0416] Optionally, the apparatus 3200 further includes:

[0417] A first receiving module, configured to use the first beam to receive a beam measurement report sent by the second terminal on the physical straight-through link feedback channel (PSFCH) time domain resource corresponding to the beam scanning resource in the target beam scanning resource group;

[0418] Wherein, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds 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;

[0419] Or every M consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, and one PSFCH time domain resource corresponds to one 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.

[0420] Optionally, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0421] The third embodiment of the present invention corresponds to the method of the above first embodiment. All the implementation means in the above first embodiment are applicable to the embodiment of the beam scanning apparatus and can also achieve the same technical effects.

[0422] Fourth Embodiment

[0423] As Figure 33 shown, a beam scanning device 3300 according to an embodiment of the present invention is applied to a second terminal and includes:

[0424] A first determination module 3301, configured to determine the type of a 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 beam scanning resource group is related to M and N, M is the number of directions of configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams;

[0425] A second reception module 3302, configured to receive the beam scanning channel sent by a first terminal according to the type of the beam scanning resource group.

[0426] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0427] Time domain configuration information of beam scanning resources;

[0428] Frequency domain configuration information of beam scanning resources;

[0429] Reservation period of beam scanning resources;

[0430] Sequence ID information and sequence type information of a reference signal of a beam scanning channel;

[0431] The number of directions M of transmission beams;

[0432] The number of directions N of reception beams;

[0433] Set of beam scanning resource group IDs;

[0434] Time domain offset value of a beam scanning resource group;

[0435] Beam scanning mode indication;

[0436] Beam switching ability indication;

[0437] Configuration period of a physical direct link feedback channel PSFCH;

[0438] Configuration offset value of PSFCH;

[0439] Frequency domain configuration information of the first resource pool;

[0440] Time domain configuration information of the first resource pool.

[0441] Optionally, the beam scanning resource group is one of the following types:

[0442] The first type, where the first type is: the beam scanning resource group includes M×N time slots, and each time slot in the time domain contains only one beam scanning resource;

[0443] The second type, where the second type is: the beam scanning resource group includes X time slots, and each time slot in the time domain contains m beam scanning resources; where X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resources.

[0444] Optionally, the first determination module 3301 includes:

[0445] The first determination sub-module is configured to obtain a beam switching capability indication according to configuration or pre-configuration information;

[0446] The second determination sub-module is configured to determine that the beam scanning resource group is the first type when the beam switching capability indicates that the first terminal does not support beam switching within one time slot;

[0447] The third determination sub-module is configured to determine that the beam scanning resource group is the second type when the beam switching capability indicates that the first terminal supports beam switching within one time slot.

[0448] Optionally, the second receiving module 3302 includes:

[0449] The first receiving sub-module is configured to receive the beam scanning channel in a fifth manner or a sixth manner when the beam scanning resource group is the first type;

[0450] The second receiving sub-module is configured to receive the beam scanning channel in a seventh manner or an eighth manner when the beam scanning resource group is the second type;

[0451] Wherein, the fifth manner is: dividing the beam scanning resources on every M consecutive time slots into a resource subset, and receiving the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset;

[0452] The sixth manner is: dividing the beam scanning resources on every N consecutive time slots into a resource subset, and receiving the beam scanning channel using different beam directions on the beam scanning resources in each resource subset;

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

[0454] The eighth method is as follows: 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, receive the beam scanning channel using different beam directions.

[0455] Optionally, in the fifth method or the seventh method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one with N resource subsets;

[0456] In the fifth method or the seventh method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0457] In the sixth method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one with the beam scanning resources on the N consecutive time slots;

[0458] In the sixth method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots;

[0459] In the eighth method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one with the N consecutive beam scanning resources;

[0460] In the eighth method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

[0461] Optionally, the first receiving sub-module includes:

[0462] The first receiving unit is used to obtain a beam scanning method indication according to configuration or pre-configured information;

[0463] The second receiving unit is used to, when the beam scanning resource group is of the first type and if the beam scanning method indication indicates beam transmission scanning, receive the beam scanning channel using the fifth method;

[0464] The third receiving unit is used to, when the beam scanning resource group is of the first type and if the beam scanning method indication indicates beam reception scanning, receive the beam scanning channel using the sixth method.

[0465] Optionally, the second receiving sub-module includes:

[0466] A fourth receiving unit, configured to obtain a beam scanning mode indication according to configured or pre-configured information;

[0467] 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 indication indicates transmitting beam scanning, receive the beam scanning channel in the seventh manner;

[0468] A sixth receiving unit, configured to, when the type of the beam scanning resource group is the second type, and if the beam scanning mode indication indicates receiving beam scanning, receive the beam scanning channel in the eighth manner.

[0469] Optionally, the apparatus 3300 further includes:

[0470] A second transmitting module, configured to, when receiving a beam scanning channel sent by a first terminal on a target beam scanning resource group, transmit 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 through beam measurement based on receiving the beam scanning channel;

[0471] Wherein, the target beam scanning resource satisfies at least one of the following conditions:

[0472] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is the maximum value of the RSRP of the beam scanning channels received in the beam scanning resource group;

[0473] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold.

[0474] Optionally, the second transmitting module includes:

[0475] A first transmitting sub-module, configured to transmit the beam measurement report on the PSFCH corresponding to the target beam scanning resource by using a second beam;

[0476] Wherein, the second beam includes the beam used for receiving the beam scanning channel on the target beam scanning resource;

[0477] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds 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 one PSFCH time domain resource corresponds to each beam scanning resource in each resource subset.

[0478] Optionally, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0479] The beam scanning device 3300 is a device corresponding to the method in the above second embodiment. All the implementation means in the above method embodiment are applicable to the embodiment of the beam scanning device and can achieve the same technical effects.

[0480] Fifth Embodiment

[0481] To better achieve the above object, as Figure 34 shown, the fourth embodiment of the present invention further provides a first terminal, including:

[0482] A processor 3400; and a memory 3420 connected to the processor 3400 through a bus interface, where 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.

[0483] Among them, a 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:

[0484] Select a target beam scanning resource group in a first resource pool according to configuration or pre-configuration information; where 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 transmit beam, and N is the number of directions of the configured or pre-configured receive beam;

[0485] Transmit a beam scanning channel on the target beam scanning resource group.

[0486] Among them, in Figure 34 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits represented by one or more processors represented by the processor 3400 and a memory represented by the memory 3420 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 3410 may be multiple elements, that is, including a transmitter and a transceiver, and provides a unit for communicating with various other devices on a transmission medium. For different terminals, the user interface 3430 may also be an interface capable of externally or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc. The processor 3400 is responsible for managing the bus architecture and general processing, and the memory 3420 may store data used by the processor 3400 when performing operations.

[0487] Optionally, the beam scanning channel includes:

[0488] Physical direct link control channel and reference signal; or

[0489] Physical direct link control channel, reference signal and physical direct link shared channel.

[0490] Optionally, the physical direct link control channel and / or the physical direct link shared channel are used to carry at least one of the following information:

[0491] Source identifier;

[0492] Destination identifier;

[0493] Application service information;

[0494] Application ID;

[0495] Beam scanning resource group ID;

[0496] Beam ID;

[0497] Time-frequency indication information;

[0498] Reference signal indication information;

[0499] Beam measurement assistance information.

[0500] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0501] Time-domain configuration information of beam scanning resources;

[0502] Frequency-domain configuration information of beam scanning resources;

[0503] Reservation period of beam scanning resources;

[0504] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0505] Number of transmission beam directions M;

[0506] Number of receiving beam directions N;

[0507] Set of beam scanning resource group IDs;

[0508] Time-domain offset value of beam scanning resources;

[0509] Beam scanning mode indication;

[0510] Beam switching ability indication;

[0511] Configuration period of the physical direct link feedback channel PSFCH;

[0512] Configuration offset value of PSFCH;

[0513] Frequency domain configuration information of the first resource pool;

[0514] Time domain configuration information of the first resource pool.

[0515] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0516] Determine the type of the beam scanning resource group included in the first resource pool according to the configuration or pre-configuration information;

[0517] The type of the beam scanning resource group is the first type or the second type;

[0518] The first type is: the beam scanning resource group includes M×N time slots, and only one beam scanning resource is included in one time slot in the time domain;

[0519] The second type is: the beam scanning resource group includes X time slots, and m beam scanning resources are included in one time slot in the time domain; where X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resource.

[0520] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0521] Obtain a beam switching capability indication according to the configuration or pre-configuration information;

[0522] When the beam switching capability indicates that the first terminal does not support beam switching within one time slot, determine that the beam scanning resource group included in the first resource pool is the first type;

[0523] When the beam switching capability indicates that the first terminal supports beam switching within one time slot, determine that the beam scanning resource group included in the first resource pool is the second type.

[0524] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0525] When the target beam scanning resource group is the first type, send the beam scanning channel in the first manner or the second manner;

[0526] When the target beam scanning resource group is the second type, send the beam scanning channel in the third manner or the fourth manner;

[0527] Wherein, the first manner is: divide the beam scanning resources on every M consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using different beam directions;

[0528] The second method is as follows: divide the beam scanning resources on every N consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using the same beam direction;

[0529] The third method is as follows: divide every M consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using different beam directions or send the reference signal in the beam scanning channel using different beam directions;

[0530] The fourth method is as follows: 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, send the beam scanning channel using the same beam direction or send the reference signal in the beam scanning channel using the same beam direction.

[0531] Optionally, the processor 3400 is configured to read the program in the memory 3420 to implement the following steps:

[0532] When using the third method to send the beam scanning channel and sending the reference signal in the beam scanning channel using different beam directions on the beam scanning resources in each resource subset, on 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 on this time slot;

[0533] When using the fourth method to send the beam scanning channel and sending the reference signal in the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset, on 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 on this time slot.

[0534] Optionally, the processor 3400 is configured to read the program in the memory 3420 to implement the following steps:

[0535] In the first method, if the number of beam directions supported by the first terminal is greater than or equal to M, then the M beam directions supported by the first terminal correspond one-to-one to the beam scanning resources on the M consecutive time slots;

[0536] In the first method, if the number of beam directions supported by the first terminal is less than M, then each beam direction supported by the first terminal corresponds to at least one of the beam scanning resources on the M consecutive time slots;

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

[0538] In the third mode, if the number of beam directions supported by the first terminal is less than M, then each beam direction supported by the first terminal corresponds to at least one of the M consecutive beam scanning resources.

[0539] In the second mode or the fourth mode, 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;

[0540] In the second mode or the fourth mode, 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 and used between different resource subsets.

[0541] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0542] Obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0543] In the case where the beam scanning resource group is of the first type, if the beam scanning mode indication indicates a transmit beam scan, then transmit the beam scanning channel in the first mode;

[0544] In the case where the beam scanning resource group is of the first type, if the beam scanning mode indication indicates a receive beam scan, then transmit the beam scanning channel in the second mode.

[0545] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0546] Obtain a beam scanning mode indication according to the configuration or pre-configuration information;

[0547] In the case where the beam scanning resource group is of the second type, if the beam scanning mode indication indicates a transmit beam scan, then transmit the beam scanning channel in the third mode;

[0548] In the case where the beam scanning resource group is of the second type, if the beam scanning mode indication indicates a receive beam scan, then transmit the beam scanning channel in the fourth mode.

[0549] Optionally, the processor 3400 is configured to read a program in the memory 3420 to implement the following steps:

[0550] 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 sensing information, to obtain a set of available candidate beam scanning resource groups;

[0551] Select a target beam scanning resource group according to the set of available candidate beam scanning resource groups.

[0552] Optionally, the sensing information includes at least one of the following:

[0553] Frequency domain information of the beam scanning resources occupied by the third terminal;

[0554] Time domain information of the beam scanning resources occupied by the third terminal;

[0555] Transmission priority value of the beam scanning channel sent by the third terminal;

[0556] Beam scanning resource group ID occupied by the third terminal;

[0557] Reservation period of the beam scanning resources of the third terminal;

[0558] Reference signal received power RSRP measurement value of the reference signal sent by the third terminal.

[0559] Optionally, the first beam scanning resource group satisfies the following conditions:

[0560] The first beam scanning resource group or the resource group 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 periodically reserved with the beam scanning resource group occupied by the third terminal;

[0561] Wherein, the third terminal satisfies at least one of the following conditions:

[0562] The maximum RSRP measurement value among the RSRP measurement values of the reference signals sent by the third terminal in the occupied beam scanning resource group is higher than the first threshold;

[0563] 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.

[0564] Optionally, the processor 3400 is used to read the program in the memory 3420 to implement the following steps:

[0565] On the physical direct link feedback channel PSFCH time domain resources corresponding to the beam scanning resources in the target beam scanning resource group, use the first beam to receive the beam measurement report sent by the second terminal;

[0566] Among them, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds to a PSFCH time domain resource. 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;

[0567] Or every M consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, and a PSFCH time domain resource corresponds to one beam scanning resource in each resource subset. 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.

[0568] Optionally, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0569] Sixth Embodiment

[0570] To better achieve the above object, as Figure 35 shown, the sixth embodiment of the present invention further provides a second terminal, including:

[0571] A processor 3500; and a memory 3520 connected to the processor 3500 through a bus interface. The memory 3520 is used to store the programs and data used by the processor 3500 when performing operations. The processor 3500 calls and executes the programs and data stored in the memory 3520.

[0572] Among them, a 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 programs in the memory 3520 to implement the following steps:

[0573] Determine the type of the beam scanning resource group in the first resource pool according to the configuration or pre-configuration information. Among them, 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 transmitting beam configured or pre-configured, and N is the number of directions of the receiving beam configured or pre-configured;

[0574] Receive the beam scanning channel sent by the first terminal according to the type of the beam scanning resource group.

[0575] Among them, in Figure 35Among them, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 3500 and a memory represented by memory 3520. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus will not be further described herein. The bus interface provides an interface. The transceiver 3510 may be multiple components, that is, 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 externally or internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc. The processor 3500 is responsible for managing the bus architecture and general processing, and the memory 3520 may store data used by the processor 3500 when executing operations.

[0576] Optionally, the configuration or pre-configuration information includes at least one of the following:

[0577] Time-domain configuration information of beam scanning resources;

[0578] Frequency-domain configuration information of beam scanning resources;

[0579] Reservation period of beam scanning resources;

[0580] Sequence ID information and sequence type information of the reference signal of the beam scanning channel;

[0581] Number M of directions of the transmit beam;

[0582] Number N of directions of the receive beam;

[0583] Set of beam scanning resource group IDs;

[0584] Time-domain offset value of the beam scanning resource group;

[0585] Beam scanning mode indication;

[0586] Beam switching ability indication;

[0587] Configuration period of the physical direct link feedback channel PSFCH;

[0588] Configuration offset value of the PSFCH;

[0589] Frequency-domain configuration information of the first resource pool;

[0590] Time-domain configuration information of the first resource pool.

[0591] Optionally, the beam scanning resource group is one of the following types:

[0592] The first type, and the first type is: the beam scanning resource group includes M×N time slots, and one time slot in the time domain only contains one beam scanning resource;

[0593] The second type, and 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; where X = ceil(M×N / m), and m is determined according to the time domain configuration information of the beam scanning resource.

[0594] Optionally, the processor 3500 is configured to read the program in the memory 3520 to implement the following steps:

[0595] Obtain a beam switching capability indication according to the configuration or pre-configuration information;

[0596] When the beam switching capability indicates that the first terminal does not support beam switching within one time slot, determine that the beam scanning resource group is the first type;

[0597] When the beam switching capability indicates that the first terminal supports beam switching within one time slot, determine that the beam scanning resource group is the second type.

[0598] Optionally, the processor 3500 is configured to read the program in the memory 3520 to implement the following steps:

[0599] When the beam scanning resource group is the first type, receive the beam scanning channel in the fifth manner or the sixth manner;

[0600] When the beam scanning resource group is the second type, receive the beam scanning channel in the seventh manner or the eighth manner;

[0601] Wherein, the fifth manner is: divide the beam scanning resources on every M consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, receive the beam scanning channel using the same beam direction;

[0602] The sixth manner is: divide the beam scanning resources on every N consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, receive the beam scanning channel using different beam directions;

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

[0604] The eighth method is as follows: Divide every N consecutive beam scanning resources in the time domain into a resource subset, and use different beam directions to receive the beam scanning channel on the beam scanning resources in each resource subset.

[0605] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0606] In the fifth method or the seventh method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one to N resource subsets;

[0607] In the fifth method or the seventh method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the N resource subsets;

[0608] In the sixth method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one to the beam scanning resources on the N consecutive time slots;

[0609] In the sixth method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the beam scanning resources on the N consecutive time slots;

[0610] In the eighth method, if the number of beam directions supported by the second terminal is greater than or equal to N, then the N beam directions supported by the second terminal correspond one-to-one to the N consecutive beam scanning resources;

[0611] In the eighth method, if the number of beam directions supported by the second terminal is less than N, then each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

[0612] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0613] Obtain a beam scanning method indication according to configuration or pre-configured information;

[0614] In the case that the beam scanning resource group is of the first type, if the beam scanning method indication indicates transmitting beam scanning, then receive the beam scanning channel using the fifth method;

[0615] In the case that the beam scanning resource group is of the first type, if the beam scanning method indication indicates receiving beam scanning, then receive the beam scanning channel using the sixth method.

[0616] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0617] Obtain a beam scanning mode indication according to configuration or pre-configuration information;

[0618] When the type of the beam scanning resource group is the second type, if the beam scanning mode indication indicates transmit beam scanning, receive the beam scanning channel using the seventh method;

[0619] When the type of the beam scanning resource group is the second type, if the beam scanning mode indication indicates receive beam scanning, receive the beam scanning channel using the eighth method.

[0620] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0621] When a beam scanning channel sent by a first terminal is received on a 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 beam measurement of receiving the beam scanning channel;

[0622] Wherein, the target beam scanning resource satisfies at least one of the following conditions:

[0623] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is the maximum value of the RSRP of the beam scanning channels received in the beam scanning resource group;

[0624] The RSRP measurement value of the beam scanning channel received on the target beam scanning resource is greater than a second threshold.

[0625] Optionally, the processor 3500 is configured to read a program in the memory 3520 to implement the following steps:

[0626] Send a beam measurement report using a second beam on a PSFCH corresponding to a target beam scanning resource;

[0627] Wherein, the second beam includes the beam used to receive the beam scanning channel on the target beam scanning resource;

[0628] Every M consecutive beam scanning resources in the beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds 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.

[0629] Optionally, the time slot position where the PSFCH is located is related to the configuration offset value of the PSFCH and M.

[0630] Those skilled in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a computer program. The computer program includes instructions for executing part or all of the steps of the above method; and the computer program can be stored in a readable storage medium, and the storage medium can be any form of storage medium.

[0631] In addition, a specific embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps of the method in the above first embodiment or second embodiment. And it can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0632] In addition, it should be noted that in the device and method of the present invention, obviously, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present invention. And the steps of performing the above series of processes can naturally be executed in chronological order according to the described order, but it is not necessary to be executed in chronological order. Some steps can be executed in parallel or independently of each other. For those of ordinary skill in the art, it can be understood that all or any steps or components of the method and device of the present invention can be implemented in any computing device (including a processor, a storage medium, etc.) or a network of computing devices in the form of 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 invention.

[0633] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a well-known general device. Therefore, the object of the present invention can also be achieved only by providing a program product containing program code for implementing the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be noted that in the device and method of the present invention, obviously, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present invention. And the steps of performing the above series of processes can naturally be executed in chronological order according to the described order, but it is not necessary to be executed in chronological order. Some steps can be executed in parallel or independently of each other.

[0634] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A beam scanning method, characterized in that, Applied to a first terminal, including: Select a target beam scanning resource group in a first resource pool according to configured or pre-configured 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 configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams; Transmit a beam scanning channel on the target beam scanning resource group.

2. The beam scanning method according to claim 1, characterized in that, The beam scanning channel includes: A physical sidelink control channel and a reference signal; or A physical sidelink control channel, a reference signal, and a physical sidelink shared channel.

3. The beam scanning method according to claim 2, characterized in that, The physical sidelink control channel and / or the physical sidelink shared channel are used to carry at least one of the following information: Source identifier; Destination identifier; 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, characterized in that, The configured or pre-configured information includes at least one of the following: Time-domain configuration information of beam scanning resources; Frequency-domain configuration information of beam scanning resources; 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 M of transmission beams; The number of directions N of reception beams; Set of beam scanning resource group IDs; Time-domain offset value of the beam scanning resource group; Beam scanning mode indication; Beam switching capability indication; Configuration period of the physical sidelink 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, characterized in that, The method further includes: Determine the type of the beam scanning resource group included in the first resource pool according to configured or pre-configured information; The type of the beam scanning resource group is a first type or a second type; The first type is: the beam scanning resource group includes M×N time slots, and one time slot in the time domain only contains 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 the type of the beam scanning resource group included in the first resource pool according to configured or pre-configured information includes: Obtain a beam switching capability indication according to the configured or pre-configured information; When the beam switching capability indicates that the first terminal does not support beam switching within one time slot, determine that the beam scanning resource group included in the first resource pool is the first type; When the beam switching capability indicates that the first terminal supports beam switching within one time slot, determine 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 transmitting the beam scanning channel on the target beam scanning resource group includes: When the target beam scanning resource group is of the first type, transmit the beam scanning channel in a first manner or a second manner; When the target beam scanning resource group is of the second type, transmit the beam scanning channel in a third manner or a fourth manner; Among them, the first method is: divide the beam scanning resources on every M consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using different beam directions; The second method is: divide the beam scanning resources on every N consecutive time slots into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using the same beam direction; The third method is: divide every M consecutive beam scanning resources in the time domain into a resource subset, and on the beam scanning resources in each resource subset, send the beam scanning channel using different beam directions or send the reference signal in the beam scanning channel using different beam directions; 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, send the beam scanning channel using the same beam direction or send the reference signal in the beam scanning channel using the same beam direction.

8. The beam scanning method according to claim 7, wherein The method further includes: When using the third method to send the beam scanning channel and sending the reference signal in the beam scanning channel using different beam directions on the beam scanning resources in each resource subset, on 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 on this time slot; When using the fourth method to send the beam scanning channel and sending the reference signal in the beam scanning channel using the same beam direction on the beam scanning resources in each resource subset, on 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 on this time slot.

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

10. The beam scanning method according to claim 7, wherein 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: Obtain a beam scanning mode indication according to the configuration or pre-configuration information; When the target beam scanning resource group is of the first type, if the beam scanning mode indication is to send beam scanning, send the beam scanning channel in the first manner; When the target beam scanning resource group is of the first type, if the beam scanning mode indication is to receive beam scanning, send the beam scanning channel in the second manner.

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: Obtain a beam scanning mode indication according to the configuration or pre-configuration information; When the target beam scanning resource group is of the second type, if the beam scanning mode indication is to send beam scanning, send the beam scanning channel in the third manner; When the target beam scanning resource group is of the second type, if the beam scanning mode indication is to receive beam scanning, send the beam scanning channel in the fourth manner.

12. The beam scanning method according to claim 1, wherein Selecting a target beam scanning resource group from a first resource pool according to the configuration or pre-configuration information includes: Exclude a 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 sensing information, to obtain a set of available candidate beam scanning resource groups; Select a target beam scanning resource group according to the set of available candidate beam scanning resource groups.

13. The beam scanning method according to claim 12, wherein, The sensing information includes at least one of the following: Frequency domain information of the beam scanning resources occupied by a third terminal; Time domain information of the beam scanning resources occupied by the third terminal; Transmission priority value of the beam scanning channel sent by the third terminal; Beam scanning resource group ID occupied by the third terminal; Reservation period of the beam scanning resources of the third terminal; 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 satisfies the following conditions: The first beam scanning resource group or a resource group that has a periodic reservation with the first beam scanning resource group overlaps with a second beam scanning resource group; The second beam scanning resource group includes: the beam scanning resource group occupied by a third terminal or a resource group that has a periodic reservation with the beam scanning resource group occupied by the third terminal; Wherein, the third terminal satisfies at least one of the following conditions: The maximum RSRP measurement value among the RSRP measurement values of the reference signals sent by the third terminal in the occupied beam scanning resource group is higher than a first threshold; 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 a 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: On the physical sidelink feedback channel (PSFCH) time domain resource corresponding to the beam scanning resource in the target beam scanning resource group, receive the beam measurement report sent by the second terminal using the first beam; Wherein, every N consecutive beam scanning resources in the target beam scanning resource group are divided into a resource subset, and each beam scanning resource in the resource subset corresponds to a PSFCH time domain resource. 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 target beam scanning resource group are divided into a resource subset, and one PSFCH time domain resource corresponds to one beam scanning resource in each resource subset. 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.

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

17. A beam scanning method, wherein, Applied to the second terminal, it includes: 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 configured or pre-configured transmission beam directions, and N is the number of configured or pre-configured reception beam directions; Receive the beam scanning channel sent by the first terminal 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 the beam scanning resource; Frequency domain configuration information of the beam scanning resource; Reservation period of the beam scanning resource; Sequence ID information and sequence type information of the reference signal of the beam scanning channel; The number of transmission beam directions M; The number of reception beam directions N; Beam scanning resource group ID set; Time domain offset value of the beam scanning resource group; Beam scanning mode indication; Beam switching ability indication; Configuration period of the physical sidelink feedback channel PSFCH; Configuration offset value of the 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, and the first type is: the beam scanning resource group includes M×N time slots, and one time slot in the time domain only contains one beam scanning resource; The second type, and 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 resource.

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

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

22. The beam scanning method according to claim 21, wherein, The method further includes: 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, then 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, then each beam direction supported by the second terminal corresponds to at least one of the N resource subsets; In the sixth manner, if the number of beam directions supported by the second terminal is greater than or equal to N, then 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 manner, if the number of beam directions supported by the second terminal is less than N, then 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, then 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, then each beam direction supported by the second terminal corresponds to at least one of the N consecutive beam scanning resources.

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

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 by using the seventh method or the eighth method includes: Obtaining a beam scanning mode indication according to configuration or pre-configuration information; When 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 by using the seventh method; When 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 by using the eighth method.

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

26. The beam scanning method according to claim 25, wherein, Sending the beam measurement report on a PSFCH corresponding to the target beam scanning resource in the target beam scanning resource group includes: On the PSFCH corresponding to the target beam scanning resource, the beam measurement report is sent by using a second beam; Wherein, the second beam includes the 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 a PSFCH time domain resource corresponds to each beam scanning resource in each resource subset; 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, A time slot position where the PSFCH is located is related to a configuration offset value of the PSFCH and M.

28. A first terminal, comprising: A transceiver, a memory, a processor, and a computer program stored on 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 on 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, wherein, Applied to a first terminal, including: A resource selection module, configured to select a target beam scanning resource group from 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 configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams; A first transmission module, configured to transmit a beam scanning channel on the target beam scanning resource group.

31. A beam scanning device, wherein, Applied to a second terminal, including: A first determination module, configured to determine the type of a 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 beam scanning resource group is related to M and N, M is the number of directions of configured or pre-configured transmission beams, and N is the number of directions of configured or pre-configured reception beams; A second reception module, configured to receive the beam scanning channel transmitted by a first terminal according to the type of the beam scanning resource group.

32. A computer-readable storage medium, on which a computer program is stored, wherein, When the computer program is executed by a processor, it implements the steps of the beam scanning method according to any one of claims 1 to 16, or implements the steps of the beam scanning method according to any one of claims 17 to 27.

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