Communication method and communication device

Abstract

The invention provides a communication method and a communication device, and relates to the technical field of beam management. In the method, a first device sends a sideline synchronization signal block to a second device, the sideline synchronization signal block comprises or is associated with a sideline signal, the sideline signal is used for indicating at least one target receiving end, and the target receiving end is a receiving end of the sideline synchronization signal block. The second device can determine whether at least one target receiving end indicated by the sideline signal is the target receiving end of the sideline synchronization signal block, if the target receiving end is the target receiving end, the second device feeds back the sideline synchronization signal block, and if the target receiving end is not the target receiving end, the second device does not feed back the sideline synchronization signal block. Therefore, the overall power consumption of the receiving end in the beam management process can be reduced.

Description

Technical Field

[0001] The present application relates to the field of beam management technology, and more specifically, to a communication method and a communication device. Background Art

[0002] Beam management can be used to establish and maintain a suitable beam pair between the transmitter and the receiver. For example, during the beam management process, the transmitter and the receiver traverse the candidate beams, and determine their respective optimal beams based on the comparison of the beam measurement results, and establish a beam pair between the transmitter and the receiver. For example, the optimal transmit beam of the transmitter and the optimal receive beam of the receiver can form a beam pair.

[0003] During the beam management process between the transmitter and the receiver in the side-link (SL) scenario, the transmitter can send a sidelink synchronization signal block (S-SSB) to the receiver, the receiver measures the S-SSB and sends the measurement result of the S-SSB to the transmitter, and the transmitter can determine whether the beam corresponding to the S-SSB is the optimal beam based on the measurement result of the S-SSB.

[0004] However, the overall power consumption of the receiving end during the above-mentioned beam management process will be relatively large. For example, the receiving end needs to measure and feedback all received S-SSBs. Therefore, how to reduce the overall power consumption of the receiving end during the beam management process is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present application provides a communication method and a communication device, which can reduce the overall power consumption of a receiving end during a beam management process.

[0006] In a first aspect, a communication method is provided, comprising: determining a sideline synchronization signal block, which includes a sideline signal, or is associated with a sideline signal, and the sideline signal is used to indicate at least one target receiving end; and sending the sideline synchronization signal block.

[0007] The execution subject of the solution described in the first aspect may be the first device, or a module in the first device, such as a chip system, or a logical node, logical module or software that can realize all or part of the functions of the first device, without limitation. For ease of description, the following description takes the first device as an example.

[0008] The first device sends a sideline synchronization signal block to the second device, which includes or is associated with a sideline signal, and the sideline signal is used to indicate at least one target receiving end, and the target receiving end is the receiving end of the sideline synchronization signal block. The second device can determine whether it is the target receiving end of the sideline synchronization signal block according to the at least one target receiving end indicated by the sideline signal, and if it is the target receiving end, the second device feeds back the sideline synchronization signal block, and if it is not the target receiving end, the second device does not feed back the sideline synchronization signal block.

[0009] In a possible implementation, the sending side line synchronization signal block may include: sending a side line signal and a side line synchronization signal block.

[0010] The side signal may be included in the side synchronization signal block or may be independent of the side synchronization signal block, without limitation. When the side signal is included in the side synchronization signal block, it may be sent through the same information, or both may be sent at the same time, which may be understood as the first device sending the side signal and the side synchronization signal block to the second device. In this way, the second device may determine whether it is the target receiving end of the side synchronization signal block based on the side signal.

[0011] When the sidewalk signal is independent of the sidewalk synchronization signal block, it can be sent through two different messages, or the two can be sent at different times, which can be understood as the first device sending the sidewalk signal and the sidewalk synchronization signal block to the second device respectively. In this way, the second device can determine whether it is the target receiving end of the sidewalk synchronization signal block based on the sidewalk signal.

[0012] Compared with the second device feeding back all the received side synchronization signal blocks, the above scheme allows the second device to only feed back the side synchronization signal blocks whose target receiving end is the second device. This can effectively reduce the overall power consumption of the receiving end during the beam management process, and can also effectively reduce the resource overhead of the receiving end. For example, the receiving end does not need to feed back the measurement results of each side synchronization signal block to the transmitting end.

[0013] In summary, when the transmitting end sends a side synchronization signal block to the receiving end, it can also indicate to the receiving end whether it is the target receiving end of the side synchronization signal block. This allows the receiving end to only provide feedback for the side synchronization signal blocks whose target receiving end is the receiving end, which is beneficial to reducing the overall power consumption of the receiving end during the beam management process, and can also effectively reduce the resource overhead of the receiving end.

[0014] In the first aspect, the above-mentioned determination of the sideline synchronization signal block includes: determining at least two sideline synchronization signal blocks, the at least two sideline synchronization signal blocks are associated with at least two sideline signals; there is a one-to-one mapping relationship between the position of the time-frequency resources occupied by each sideline synchronization signal block in the at least two sideline synchronization signal blocks and the position of the time-frequency resources occupied by the corresponding sideline signal in the at least two sideline signals. The above-mentioned sending of the sideline synchronization signal block includes: sending at least two sideline synchronization signal blocks.

[0015] When the first device sends multiple side synchronization signal blocks to the second device, there is a one-to-one mapping relationship between the position of the time-frequency resources occupied by each side synchronization signal block and the position of the time-frequency resources occupied by the corresponding side signal. When the second device receives multiple side synchronization signal blocks, it can determine the associated side signal based on the mapping relationship between the two, and determine whether the target receiving end indicated by each side signal is the second device. The second device can only provide feedback for the side synchronization signal blocks whose target receiving end is the second device.

[0016] In this way, this can effectively reduce the overall power consumption of the receiving end during the beam management process, and can also effectively reduce the resource overhead of the receiving end.

[0017] In a second aspect, a communication method is provided, comprising: receiving a sideline synchronization signal block, which includes a sideline signal, or is associated with a sideline signal, and the sideline signal is used to indicate at least one target receiving end; and determining the target receiving end of the sideline synchronization signal block according to the sideline signal.

[0018] The execution subject of the solution described in the second aspect may be the second device, or a module in the second device, such as a chip system, or a logical node, logical module or software that can realize all or part of the functions of the second device, without limitation. For ease of description, the second device is used as an example for description below.

[0019] The first device sends a sideline synchronization signal block to the second device, which includes or is associated with a sideline signal, and the sideline signal indicates at least one target receiving end, which is the receiving end of the sideline synchronization signal block. The second device can determine whether it is the target receiving end of the sideline synchronization signal block according to the at least one target receiving end indicated by the sideline signal, and if it is the target receiving end, the second device feeds back the sideline synchronization signal block, and if it is not the target receiving end, the second device does not feed back the sideline synchronization signal block.

[0020] In a possible implementation, the above-mentioned receiving side line synchronization signal block may include: a receiving side line signal and a side line synchronization signal block.

[0021] The side signal may be included in the side synchronization signal block or may be independent of the side synchronization signal block, without limitation. When the side signal is included in the side synchronization signal block, it may be sent through the same information, or both may be sent at the same time, which may be understood as the first device sending the side signal and the side synchronization signal block to the second device. In this way, the second device may determine whether it is the target receiving end of the side synchronization signal block based on the side signal.

[0022] When the side signal is independent of the side synchronization signal block, it can be sent through two different messages, or the two can be sent at different times, which can be understood as the first device sending the side signal and the side synchronization signal block to the second device respectively. In this way, the second device can determine whether it is the target receiving end of the side synchronization signal block based on the side signal. Compared with the second device feeding back all the received side synchronization signal blocks, the above scheme can enable the second device to only feed back the side synchronization signal blocks whose target receiving end is the second device, which can effectively reduce the overall power consumption of the receiving end during the beam management process, and can also effectively reduce the resource overhead of the receiving end.

[0023] In summary, when the transmitting end sends a side synchronization signal block to the receiving end, it can also indicate to the receiving end whether it is the target receiving end of the side synchronization signal block. This allows the receiving end to only provide feedback for the side synchronization signal blocks whose target receiving end is the receiving end, which is beneficial to reducing the overall power consumption of the receiving end during the beam management process, and is also beneficial to reducing the resource overhead of the receiving end.

[0024] In the second aspect, the method further includes: sending the measurement result of the sideline synchronization signal block.

[0025] When the second device is determined as the target receiving end of the side synchronization signal block, the second device measures the side synchronization signal block and sends the measurement result of the side synchronization signal block to the first device, which is conducive to realizing beam management between the first device and the second device and can support determining a suitable beam pair between the first device and the second device.

[0026] In the second aspect, the above-mentioned receiving side synchronization signal blocks includes: receiving at least two side synchronization signal blocks, at least two side synchronization signal blocks are associated with at least two side signals; there is a one-to-one mapping relationship between the position of the time-frequency resources occupied by each side synchronization signal block in the at least two side synchronization signal blocks and the position of the time-frequency resources occupied by the corresponding side signal in the at least two side signals.

[0027] When the first device sends multiple side synchronization signal blocks to the second device, there is a one-to-one mapping relationship between the position of the time-frequency resources occupied by each side synchronization signal block and the position of the time-frequency resources occupied by the corresponding side signal. When the second device receives multiple side synchronization signal blocks, it can determine the associated side signal based on the mapping relationship between the two, and determine whether the target receiving end indicated by each side signal is the second device. The second device can only provide feedback for the side synchronization signal blocks whose target receiving end is the second device.

[0028] In this way, this can effectively reduce the overall power consumption of the receiving end during the beam management process, and can also effectively reduce the resource overhead of the receiving end.

[0029] In combination with the scheme described in any one of the first aspect and the second aspect, the sidewalk signal includes a sidewalk primary synchronization signal sequence and / or a sidewalk secondary synchronization signal sequence, and the sidewalk primary synchronization signal sequence and / or the sidewalk secondary synchronization signal sequence are used to indicate at least one target receiving end.

[0030] The above-mentioned side main synchronization signal sequence and side auxiliary synchronization signal sequence are orthogonal sequences to each other. The orthogonality between the sequences can be used to distinguish different target receiving ends, or the combination of different sequences can be used to characterize different target receiving ends, so that the target receiving ends can be distinguished.

[0031] In combination with the scheme described in any one of the first aspect and the second aspect, the sidelink signal includes a physical sidelink feedback channel, and the frequency domain resources corresponding to the physical sidelink feedback channel and / or the cyclic shift within the frequency domain resources are used to indicate at least one target receiving end.

[0032] Different frequency domain resources and cyclic shifts can represent different target receiving ends, and can support distinguishing different target receiving ends.

[0033] In combination with the solution described in any one of the first aspect and the second aspect, the sidelink signal includes a reference signal, and the position of the time-frequency resource corresponding to the reference signal is used to indicate at least one target receiving end.

[0034] The positions of time-frequency resources corresponding to different reference signals can represent different target receiving ends, and can support distinguishing different target receiving ends.

[0035] In combination with the solution described in any one of the first aspect and the second aspect, the reference signal is located in a physical sidelink broadcast channel included in the sidelink signal.

[0036] In this way, the design of the physical sidelink broadcast channel can be reused by using existing standards, avoiding major modifications to the current standards.

[0037] In combination with the solution described in any one of the first aspect and the second aspect, the sidelink signal includes at least one identification information, and the at least one identification information corresponds one-to-one to at least one target receiving end.

[0038] In this way, the indication to the target receiving end can be achieved.

[0039] In combination with the solution described in any one of the first aspect and the second aspect, the side synchronization signal block is used to indicate the transmitting end.

[0040] In this way, the second device can determine the sending end of the side synchronization signal block, which is conducive to feeding back the measurement results of the side synchronization signal block to the corresponding device.

[0041] In a possible implementation, the side synchronization signal block can be used to indicate both the transmitting end and the target receiving end.

[0042] Specifically, the sideline signal in the sideline synchronization signal block indicates the sending end, and the sideline primary synchronization signal sequence and the sideline secondary synchronization signal sequence in the sideline synchronization signal block indicate the target receiving end; or, the sideline signal in the sideline synchronization signal block indicates the target receiving end, and the sideline primary synchronization signal sequence and the sideline secondary synchronization signal sequence in the sideline synchronization signal block indicate the sending end. In this way, the second device can determine the sending end and the target receiving end of the sideline synchronization signal block.

[0043] In a possible implementation, the sideline synchronization signal block can be used to indicate the target receiving end, and the sideline signal is used to indicate the transmitting end. When the target receiving end is indicated by the sideline synchronization signal block, the target receiving end can be indicated by the sideline primary synchronization signal sequence and the sideline secondary synchronization signal sequence in the sideline synchronization signal block, and the transmitting end can be indicated by the sideline signal. In this way, the second device can determine the transmitting end and the target receiving end of the sideline synchronization signal block.

[0044] In combination with the solution described in any one of the first aspect and the second aspect, the reference signal is a sidelink channel state information reference signal or a sidelink demodulation reference signal.

[0045] In this way, the target receiving end may be indicated by the position of the time-frequency resources corresponding to the sidelink channel state information reference signal; or, the target receiving end may be indicated by the position of the time-frequency resources corresponding to the sidelink demodulation reference signal.

[0046] According to a third aspect, a communication device is provided, comprising: a processing unit for determining a side synchronization signal block, which includes a side signal, or is associated with a side signal, and the side signal is used to indicate at least one target receiving end; and an interface unit for sending the side synchronization signal block.

[0047] The communication device described in the third aspect can be used to execute the method described in the first aspect and any possible implementation of the first aspect. For details, please refer to the description of the method described in the first aspect and any possible implementation of the first aspect, and no further details will be given.

[0048] In a fourth aspect, a communication device is provided, comprising: an interface unit for receiving a side synchronization signal block, which includes a side signal, or is associated with a side signal, and the side signal is used to indicate at least one target receiving end; a processing unit for determining the target receiving end of the side synchronization signal block according to the side signal.

[0049] The communication device described in the fourth aspect can be used to execute the method described in the second aspect and any possible implementation method of the second aspect. For details, please refer to the description of the method described in the second aspect and any possible implementation method of the second aspect, and no further details will be given.

[0050] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a module for executing a method in all possible ways in the first aspect or the second aspect.

[0051] In a sixth aspect, an embodiment of the present application provides a communication device, comprising an interface circuit and a processor, wherein the communication device is used to execute any possible method in the first aspect or the second aspect.

[0052] The above-mentioned interface circuit may also be a communication interface. The above-mentioned processor may also be a logic circuit or a processing circuit.

[0053] In a seventh aspect, an embodiment of the present application provides a computer-readable medium storing a program code for execution by a terminal device, wherein the program code includes instructions for executing any possible method in the first aspect or the second aspect.

[0054] In an eighth aspect, an embodiment of the present application provides a computer program product storing computer-readable instructions, which, when executed on a computer, enables the computer to execute any possible method in the first aspect or the second aspect.

[0055] In a ninth aspect, an embodiment of the present application provides a communication system, which includes a device having the function of implementing any possible method in the first to second aspects above.

[0056] In the tenth aspect, an embodiment of the present application provides a processor, which is coupled to a memory and is used to execute any possible method in the first aspect or the second aspect mentioned above.

[0057] In an eleventh aspect, a communication device is provided, comprising: a processor, configured to execute computer instructions stored in a memory, so that the communication device executes a method as described in any possible manner in the first aspect or the second aspect above.

[0058] In a possible implementation, the above-mentioned communication device also includes a memory.

[0059] In a possible implementation, the communication device further includes a communication interface, which is coupled to the processor, and the communication interface is used to input and / or output information.

[0060] In the twelfth aspect, a chip is provided, which is connected to a memory and is used to read and execute a software program stored in the memory to execute a method as described in any possible manner in the first aspect or the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 It is a schematic diagram of a communication system applicable to an embodiment of the present application.

[0062] Figure 2 It is a schematic diagram of the time domain structure of S-SSB.

[0063] Figure 3 It is a schematic diagram of beam management.

[0064] Figure 4 It is a schematic diagram of the interaction process of the communication method of an embodiment of the present application.

[0065] Figure 5 It is a schematic diagram of time-frequency resources corresponding to a reference signal in an embodiment of the present application.

[0066] Figure 6 It is a schematic diagram of time-frequency resources corresponding to another reference signal in an embodiment of the present application.

[0067] Figure 7 It is a schematic diagram of time-frequency resources of a physical sidelink feedback channel according to an embodiment of the present application.

[0068] Figure 8 It is a schematic diagram of the correspondence between S-SSB and side signals in an embodiment of the present application.

[0069] Fig. 9 This is another schematic diagram of the correspondence between S-SSB and side signals in an embodiment of the present application.

[0070] Fig.10 It is a schematic diagram of the correspondence between S-SSB and reporting timing in an embodiment of the present application.

[0071] Fig.11 It is a schematic block diagram of a communication device according to an embodiment of the present application.

[0072] Fig.12 It is a schematic block diagram of another communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0073] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0074] In order to facilitate understanding of the embodiments of the present application, the following points are first explained.

[0075] 1. Unless otherwise specified, “plurality” means two or more.

[0076] 2. Unless otherwise specified or there is no logical conflict, the terms and / or descriptions between different embodiments of the present application are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments based on their internal logical relationships.

[0077] 3. The various digital numbers involved in this application are only used for the convenience of description and are not used to limit the scope of protection of this application. The size of the serial numbers involved in this application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic. For example, the terms "first", "second", "third", "fourth" and other various terminology labels (if any) in the specification and claims and drawings of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Among them, the data used in this way can be interchangeable where appropriate, so that the embodiments described here can be implemented in an order other than what is illustrated or described here.

[0078] At the same time, any embodiment or design described in the present application as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0079] 4. The terms "comprise", "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product or apparatus.

[0080] 5. In this application, "used to indicate" can be understood as "enable", and "enable" can include direct enablement and indirect enablement. When describing that a certain information is used to enable A, it can include that the information directly enables A or indirectly enables A, and it does not mean that the information must carry A.

[0081] The information enabled by the information is called information to be enabled. In the specific implementation process, there are many ways to enable the information to be enabled, such as but not limited to, the information to be enabled can be directly enabled, such as the information to be enabled itself or the index of the information to be enabled. The information to be enabled can also be indirectly enabled by enabling other information, wherein there is an association relationship between the other information and the information to be enabled. It is also possible to enable only a part of the information to be enabled, while the other parts of the information to be enabled are known or agreed in advance. For example, the enabling of specific information can also be achieved by means of the arrangement order of each piece of information agreed in advance (such as specified by the protocol), thereby reducing the enabling overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and enabled uniformly to reduce the enabling overhead caused by enabling the same information separately.

[0082] 6. In this application, "pre-configuration" may include pre-definition, such as protocol definition. Among them, "pre-definition" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including each network element), and this application does not limit its specific implementation method.

[0083] 7. The term "storage" or "saving" as used in this application may refer to saving in one or more memories. The one or more memories may be provided separately or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partially provided separately and partially integrated in a decoder, a processor, or a communication device. The type of memory may be any form of storage medium, without limitation.

[0084] 8. The "protocol" referred to in this application may refer to a standard protocol in the field of communications, for example, the fourth generation (4 th generation, 4G) network, fifth generation (5 th generation, 5G) network protocol, NR protocol, 5.5G network protocol, sixth generation (6 th The present application does not limit the network protocols used in future communication systems.

[0085] 9. The dotted arrows or boxes in the schematic diagrams of the drawings in the specification of this application represent optional steps or optional modules.

[0086] 10. Unless otherwise specified, “ / ” indicates that the objects associated with each other are in an “or” relationship. For example, A / B can represent A or B. The “and / or” in this application is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0087] First, a communication system to which the embodiments of the present application are applicable is described.

[0088] The technical solution of the embodiment of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), fifth generation (5G) system or new radio (NR), sixth generation (6G) system and other systems evolved after 5G, inter-satellite communication and satellite communication and other non-terrestrial communication networks (NTN) systems. The satellite communication system includes a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station can also communicate with the ground base station. The satellite can be used as a base station or as a terminal device. Among them, the satellite can refer to non-ground base stations or non-ground equipment such as drones, hot air balloons, low-orbit satellites, medium-orbit satellites, and high-orbit satellites.

[0089] The technical solution of the embodiment of the present application is applicable to both homogeneous and heterogeneous network scenarios, and there is no restriction on the transmission point. It can be multi-point coordinated transmission between macro base stations, micro base stations, and macro base stations. It is applicable to FDD / TDD systems. The technical solution of the embodiment of the present application is not only applicable to low-frequency scenarios (sub 6G), but also to high-frequency scenarios (above 6GHz), terahertz, optical communications, etc. The technical solution of the embodiment of the present application can be applied not only to the communication between network devices and terminals, but also to the communication between network devices and network devices, the communication between terminals, the Internet of Vehicles, the Internet of Things, the Industrial Internet, etc.

[0090] The technical solution of the embodiment of the present application can also be applied to the scenario where the terminal is connected to a single base station, wherein the base station to which the terminal is connected and the core network (CN) to which the base station is connected are of the same standard. For example, if CN is 5GCore, the base station corresponds to a 5G base station, and the 5G base station is directly connected to the 5G Core; or if CN is 6G Core, the base station is a 6G base station, and the 6G base station is directly connected to the 6G Core. The technical solution of the embodiment of the present application can also be applied to the dual connectivity (DC) scenario where the terminal is connected to at least two base stations.

[0091] The technical solution of the embodiment of the present application can also use macro and micro scenarios composed of base stations of different forms in the communication network. For example, the base station can be a satellite, an aerial balloon station, a drone station, etc. The technical solution of the embodiment of the present application is also suitable for scenarios where there are both wide coverage base stations and small coverage base stations.

[0092] The technical solutions of the embodiments of the present application can also be applied to 5.5G, 6G and later wireless communication systems, and applicable scenarios include but are not limited to ground cellular communications, NTN, satellite communications, high altitude platform station (HAPS) communications, vehicle-to-everything (V2X), integrated access and backhaul (IAB), reconfigurable intelligent surface (RIS) communications, indoor commercial use and other scenarios.

[0093] The technical solution of the embodiment of the present application can also be applied to SL communication between terminal devices directly, that is, the shared channel and the feedback channel are transmitted and received between the terminal devices.

[0094] It should be understood that the technical solutions of the embodiments of the present application can also be applied to indoor commercial scenarios, for example, high-definition projection of a mobile phone to a large screen, transmission of VR videos from a mobile phone to VR glasses, etc.

[0095] The terminal device in the embodiment of the present application is a device with wireless transceiver functions, which may refer to user equipment (UE), access terminal, subscriber unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, on-board unit (OBU), telematics BOX (T-BOX), vehicle, road side unit (RSU), chip, user agent or user device. The terminal device may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a customer-premises equipment (CPE), a smart point of sale (POS) machine, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a terminal in device-to-device communication (D2D), a terminal in V2X, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a transportation safety (transportation) The embodiments of the present application are not limited to wireless terminals in smart cities, wireless terminals in smart homes, or terminal devices in communication networks that evolve after 5G, etc.

[0096] The device for realizing the function of the terminal device may be the terminal device; or it may be a device capable of supporting the terminal device to realize the function, such as a chip system. The device may be installed in the terminal device or used in conjunction with the terminal device. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0097] The network device in the embodiment of the present application is a device with wireless transceiver function, which is used to communicate with the terminal device. The network device can be a node in the radio access network (RAN), which can also be called a base station, or a RAN node. It can be an evolved base station (evolved Node B, eNB or eNodeB) in LTE; or a base station in a 5G network such as gNodeB (gNB) or a base station in a public land mobile network (PLMN) evolved after 5G, a broadband network service gateway (BNG), an aggregation switch or a 3GPP access device, etc.

[0098] The network devices in the embodiments of the present application may also include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, transmission points (transmitting and receiving points, TRP), transmission points (transmitting points, TP), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, etc., and may also include centralized units (CU) and distributed units (DU) in cloud access network (C-RAN) systems, and network devices in NTN communication systems, which are not specifically limited in the embodiments of the present application.

[0099] The device for implementing the function of the network device may be a network device, or a device that can support the network device to implement the function, such as a chip system. The device may be installed in the network device or used in conjunction with the network device. The chip system in the embodiment of the present application may be composed of a chip, or may include a chip and other discrete devices.

[0100] Figure 1 Schematic diagram of a communication system applicable to an embodiment of the present application. Figure 1 As shown, the communication system includes: a terminal device 110 and a terminal device 120. The terminal device 110 and the terminal device 120 can be any terminal device listed above. The terminal device 110 and the terminal device 120 can communicate through the PC5 interface, that is, the terminal device 110 and the terminal device 120 perform SL communication.

[0101] Optionally, the communication system may further include a network device 130, and the terminal device (such as the terminal device 110 or the terminal device 120) communicates with the network device 130 via an air interface (Uu interface).

[0102] The first device and the second device described below may be the terminal device 110 and the terminal device 120 mentioned above.

[0103] In order to better understand the embodiments of the present application, the terms involved in the present application are briefly explained first. These explanations are intended to make the embodiments of the present application easier to understand and should not be regarded as limiting the scope of protection claimed in the present application.

[0104] 1. Sidelink Synchronization Signal Block (S-SSB)

[0105] The sidelink primary synchronization signals (S-PSS), the sidelink secondary synchronization signals (S-SSS) and the physical sidelink broadcast channel (PSBCH) together constitute S-SSB.

[0106] For the time domain structure of S-SSB, please refer to Figure 2 .

[0107] Figure 2 This is a schematic diagram of the time domain structure of S-SSB. Figure 2 As shown, the time slot length of S-SSB includes 14 orthogonal frequency division multiplexing (OFDM) symbols. The 0th symbol is used for automatic gain control (AGC) (can also be PSBCH). The 1st symbol and the 2nd symbol are used to transmit the S-PSS sequence. The 3rd symbol and the 4th symbol are used to transmit the S-SSS sequence. The last symbol is a gap (GAP) symbol, which is used for transceiver switching. The remaining symbols are used to transmit PSBCH.

[0108] In an embodiment of the present application, S-SSB can be used not only for synchronization management between the transmitter and the receiver, but also for beam management between the transmitter and the receiver.

[0109] For information on how to schedule S-SSB, please refer to the existing standard description and will not be elaborated here.

[0110] 2. Beam Management

[0111] Beam management can be used to establish and maintain a suitable beam pair between the transmitter and the receiver. For example, the transmitter needs to select a suitable transmit beam, and the receiver needs to select a suitable receive beam. The transmit beam and the receive beam form a beam pair to maintain a good wireless connection between the transmitter and the receiver.

[0112] For further description of beam management, see Figure 3 .

[0113] Figure 3 is a schematic diagram of beam management. Figure 3 As shown, the transmitting end sends S-SSB1 (corresponding to beam 1) in the direction of beam 1, sends S-SSB2 (corresponding to beam 2) in the direction of beam 2, and sends S-SSB3 (corresponding to beam 3) in the direction of beam 3. The receiving end receives S-SSB1, S-SSB2, and S-SSB3, measures the S-SSB, obtains the measurement result of the S-SSB, and reports the measurement result of the S-SSB to the transmitting end. The transmitting end determines that the measurement result of S-SSB2 is better than the measurement result of S-SSB1 and the measurement result of S-SSB3 based on the measurement results of the three S-SSBs reported by the receiving end.

[0114] Furthermore, the transmitting end may further divide beam 2 to obtain three sub-beams, namely, beam a1, beam a2, and beam a3, and respectively transmit sidelink channel state information-reference signal (SL-CSI-RS) a1 (corresponding to beam a1), SL-CSI-RS a2 (corresponding to beam a2), and SL-CSI-RS a3 (corresponding to beam a3). The receiving end receives SL-CSI-RS a1, SL-CSI-RS a2, and SL-CSI-RS a3, and measures the SL-CSI-RS to obtain the measurement result of the SL-CSI-RS, and reports the measurement result of the SL-CSI-RS to the transmitting end. The transmitting end determines that the measurement result of SL-CSI-RSa2 is better than the measurement result of SL-CSI-RS a1 and the measurement result of SL-CSI-RS a3 based on the measurement results of the three SL-CSI-RS reported by the receiving end. The transmitting end may determine that the sub-beam corresponding to SL-CSI-RS a2 is the best transmitting beam.

[0115] The receiving end can also determine a suitable receiving beam based on the above process.

[0116] However, in Figure 3During the beam management process shown (mainly focusing on the S-SSB scanning process), the overall power consumption of the receiving end will be large.

[0117] In view of this, the present application provides a communication method and a communication device, which can reduce the overall power consumption of the receiving end during the beam management process.

[0118] The communication method and communication device according to the embodiments of the present application are described below in conjunction with the accompanying drawings.

[0119] For ease of understanding and explanation, the following describes the communication method of the embodiment of the present application by taking the interaction between the first device and the second device as an example, but this should not constitute any limitation on the execution subject of the communication method of the embodiment of the present application. For example, the method performed by the first device can be performed by a module of the first device (such as a circuit, chip, or chip system), and can also be implemented by a logical node, logic module, or software that can realize all or part of the functions of the first device. The method performed by the second device can be performed by a module of the second device (such as a circuit, chip, or chip system), and can also be implemented by a logical node, logic module, or software that can realize all or part of the functions of the second device.

[0120] The above-mentioned device may be a communication device or a device, or a component or a chip system in a device. For example, the first device is a first device, or a first component, or a first chip; for example, the second device is a second device, or a second component, or a second chip.

[0121] The first device and the second device may both be terminal devices, or the first device and the second device may both be components / modules in the terminal device, or the first device is a terminal device and the second device is a component / module in the terminal device; or the first device is a component / module in the terminal device and the second device is a terminal device, which is not limited.

[0122] In addition, the second device may represent one device or multiple devices. For ease of description, the following description is based on an example in which the second device represents one device.

[0123] Figure 4 Schematic diagram of the interaction process of the communication method of the embodiment of the present application. Figure 4 As shown, the method includes:

[0124] S401. The first device determines S-SSB*.

[0125] S-SSB* can be used for beam management between the first device and the second device, wherein S-SSB* is used to characterize any S-SSB.

[0126] Optionally, S-SSB* can also be used for synchronization management between the first device and the second device. For the time domain structure of S-SSB*, please refer to Figure 2 , no more details.

[0127] The first device is a transmitting end, and the second device is a receiving end. In order to enable the second device to determine whether S-SSB* is required for measurement and / or feedback, the present application supports processing S-SSB* so that the second device can determine whether it is a target receiving end of S-SSB*.

[0128] In one possible implementation, the S-SSB* includes a side signal* (or, the side signal* is carried within the S-SSB*), which is used to indicate at least one target receiving end, and the target receiving end is the target receiving end of the S-SSB*.

[0129] Another possible implementation is that S-SSB* is associated with a side signal* (or, the side signal* is carried outside the S-SSB*), which is used to indicate at least one target receiving end, and the target receiving end is the target receiving end of the S-SSB*.

[0130] As an example, the target receiving end can be understood as: a receiving end that needs to measure and / or provide feedback on S-SSB*.

[0131] Exemplarily, the second device and the third device both receive S-SSB*, the second device needs to measure and provide feedback on the S-SSB*, and the second device is the target receiving end of the S-SSB*, the third device does not need to measure and / or provide feedback on the S-SSB*, and the third device is not the target receiving end of the S-SSB*.

[0132] Another example, the target receiving end can also be understood as: a receiving end that needs to measure and / or perform measurement on the beam corresponding to S-SSB*.

[0133] Exemplarily, the second device and the third device both receive S-SSB*, the second device needs to determine the measurement result of the beam corresponding to S-SSB*, and needs to send the measurement result to the first device, and the second device is the target receiving end of S-SSB*. The third device does not need to determine the measurement result of the beam corresponding to S-SSB*, and does not need to send the measurement result to the first device, so the third device is not the target receiving end of S-SSB*; or, the third device needs to determine the measurement result of the beam corresponding to S-SSB*, but does not need to send the measurement result to the first device, and the third device is not the target receiving end of S-SSB*.

[0134] In one possible implementation, the side signal* includes identification information of the target receiving end, and the second device can compare whether the identification information included in the side signal* is completely consistent or partially consistent with the identification information of the second device to determine whether it is the target receiving end of the S-SSB*. In this way, the indication of the target receiving end can be achieved.

[0135] In one possible implementation, the side signal* can also be used to indicate at least one receiving end. For example, the S-SSB* includes the side signal*, or the S-SSB* is associated with the side signal*, and the device receiving the S-SSB* can determine whether it is the receiving end of the S-SSB* based on the side signal*.

[0136] Exemplarily, the second device and the third device both receive the S-SSB*, and determine whether they are receiving ends based on whether at least one receiving end indicated by the side signal* includes itself. For example, the second device can be determined to be a receiving end of the S-SSB* based on the fact that at least one receiving end indicated by the side signal* includes the second device (for example, the identification information of the second device can be indicated by the side signal*), and the third device can be determined not to be a receiving end of the S-SSB* based on the fact that at least one receiving end indicated by the side signal* does not include the third device.

[0137] In the embodiment of the present application, the side signal * is used to indicate at least one target receiving end, and may be: the side signal * includes at least one identification information, and the identification information corresponds to the target receiving end one by one. For example, the side signal * includes the identification information of the second device, and the second device determines that it is the target receiving end of the S-SSB * according to the identification information of the second device included in the side signal *; for another example, the side signal * does not include the identification information of the third device, and the third device determines that it is not the target receiving end of the S-SSB * according to the side signal * does not include the identification information of the third device.

[0138] The above identification information may be an identification of a device, or may be other information that can be used to distinguish different devices, such as index information, etc., which is not limited to this.

[0139] In one possible implementation, the target receiving end is determined by the first device according to the indication information, and the indication information comes from the V2X application layer ID. For example, if there is a historical communication between the first device and the target receiving end (or there is a link establishment process between the first device and the target receiving end), the first device can determine the identification information of the target receiving end according to the historical communication, and then indicate the target receiving end through the sidelink signal*.

[0140] In another possible implementation, the target receiving end is determined by the first device according to the service data. For example, the service data includes identification information of the target receiving end (used to identify the receiving end of the service data), and the first device can determine the identification information of the target receiving end according to the service data, and indicate the target receiving end through the side signal *.

[0141] In the embodiment of the present application, the side signal* may also be other names such as the side information*, and the specific name of the side signal* is not limited. The above-mentioned S-SSB* may also have other names, which are not limited.

[0142] For ease of description, the following description is made by taking the side signal* indicating a target receiving end as an example. Among them, the following description is made by taking the S-SSB* including the side signal* as an example.

[0143] In one possible implementation, the sidelink signal* includes an S-PSS sequence and an S-SSS sequence (or the sidelink signal* is an S-PSS sequence and an S-SSS sequence), and the S-PSS sequence and the S-SSS sequence are used to indicate a target receiving end.

[0144] It should be noted that the following description of the S-PSS sequence and the S-SSS sequence is only an example and not a limitation. There may be more combinations of the S-PSS sequence and the S-SSS sequence, and they are not limited to the following examples.

[0145] Combination Figure 2 As shown, exemplarily, S-SSB* includes an S-PSS sequence and an S-SSS sequence. There are 2 types of S-PSS sequences, 336 types of S-SSS sequences, and a total of 672 combinations of S-PSS sequences and S-SSS sequences. Each combination of an S-PSS sequence and an S-SSS sequence represents or is associated with an SL-service set identifier (SSID), and an SL-SSID is associated with a target receiving end.

[0146] The combination of the S-PSS sequence and the S-SSS sequence is expressed as:

[0147]

[0148] in,

[0149] In summary, the target receiving end can be indicated by associating the target receiving end with the SL-SSID.

[0150] When the side signal* includes an S-PSS sequence and an S-SSS sequence (or the side signal* is an S-PSS sequence and an S-SSS sequence), the identification information of the target receiving end can be carried in the S-PSS sequence and the S-SSS sequence. For example, the identification information of different target receiving ends can be represented by different combinations of S-PSS sequences and S-SSS sequences, as shown in Table 1. The content shown in Table 1 is understood as an example only and is not a final limitation.

[0151] Table 1

[0152] S-PSS sequence S-SSS sequence Identification information of the target receiving end S-PSS sequence 1 S-SSS Sequence 1 Identification information 1 S-PSS sequence 2 S-SSS Sequence 2 Identification information 2 S-PSS sequence 2 S-SSS sequence 3 Identification information 3 S-PSS sequence 1 S-SSS Sequence 2 Identification information 4 S-PSS sequence 1 S-SSS sequence 3 Identification information 5

[0153] As shown in Table 1:

[0154] When the S-PSS sequence is S-PSS sequence 1, and the S-SSS sequence is S-SSS sequence 1, it represents identification information 1 (such as device 1);

[0155] When the S-PSS sequence is S-PSS sequence 2, and the S-SSS sequence is S-SSS sequence 2, it represents identification information 2 (such as device 2);

[0156] When the S-PSS sequence is S-PSS sequence 2, and the S-SSS sequence is S-SSS sequence 3, it represents identification information 3 (such as device 3);

[0157] When the S-PSS sequence is S-PSS sequence 1, and the S-SSS sequence is S-SSS sequence 2, it represents identification information 4 (such as device 4);

[0158] When the S-PSS sequence is S-PSS sequence 1, and the S-SSS sequence is S-SSS sequence 3, it represents identification information 5 (such as device 5).

[0159] As shown in Table 1, different combinations of S-PSS sequences and S-SSS sequences can represent different identification information of target receiving ends. In this way, the identification information of the target receiving end can be carried in the S-PSS sequence and the S-SSS sequence.

[0160] The above-mentioned S-PSS sequence and S-SSS sequence are orthogonal sequences to each other. The orthogonality between the sequences can be used to distinguish different target receiving ends, or the combination of different sequences can be used to characterize different target receiving ends, so that the target receiving ends can be distinguished.

[0161] It should be noted that the above content jointly represents the target receiving end by the S-PSS sequence and the S-SSS sequence, but it can also be represented by one of them, for example, only by the S-PSS sequence or the S-SSS sequence, and this is not limited.

[0162] In a possible implementation, the sidelink signal* includes a reference signal*, and the position of the time-frequency resource corresponding to the reference signal* is used to indicate the target receiving end.

[0163] Combination Figure 2 As shown, S-SSB* includes 8 PSBCHs, and the reference signal* is located in the PSBCH included in the side signal* (or the side signal* is the PSBCH). In this way, the design of the PSBCH in the existing standard can be reused to avoid making major modifications to the current standard.

[0164] For the location of the time-frequency resources corresponding to the reference signal*, see Figure 5 and Figure 6 .

[0165] The frequency domain resource in the embodiment of the present application may be any one or more of a resource element (RE), a resource block (RB) or a physical resource block (PRB), etc., and is not limited thereto. For ease of description, the following description is made by taking the frequency domain resource as RE as an example.

[0166] The time domain resource in the embodiment of the present application may be any one or more of a time slot, a symbol, and a frame, etc., and is not limited thereto. For ease of description, the following description is made by taking the time domain resource as a symbol as an example.

[0167] Figure 5 Schematic diagram of time-frequency resources corresponding to a reference signal in an embodiment of the present application. Figure 5 As shown, symbols 5 to 12 are used to transmit PSBCH, and the reference signal * can be carried in the frequency domain resources corresponding to symbols 5 to 12. For example, the reference signal * is carried in the 5th RE and the 6th RE of the 12 REs corresponding to symbol 9. The position of the time-frequency resource corresponding to the reference signal * can be expressed as: X = 2 (used to indicate the number of REs), k 0 =5 (used to indicate the position of the starting RE) and l 0 =9 (used to indicate the position of the starting symbol).

[0168] Thus, the first device can use different {k 0 , l 0}Associate different target receivers.

[0169] When the side signal * includes a reference signal *, the identification information of the target receiving end can be carried in the position of the time-frequency resource corresponding to the reference signal *. For example, the identification information of different target receiving ends is represented by the position of different time-frequency resources. Please refer to Table 2. The content shown in Table 2 is only understood as an example and is not a final limitation.

[0170] Table 2

[0171] The location of the time-frequency resource corresponding to the reference signal* Identification information of the target receiving end <![CDATA[{k 0 ,l 0 }]]> Identification information 1 <![CDATA[{k 1 ,l 1 }]]> Identification information 2 <![CDATA[{k 0 ,l 1 }]]> Identification information 3 <![CDATA[{k 0 ,l 2 }]]> Identification information 4 <![CDATA[{k 3 ,l 2 }]]> Identification information 5

[0172] As shown in Table 2:

[0173] When the location of the time-frequency resource corresponding to the reference signal* is {k 0 ,l 0}, which represents identification information 1 (such as device 1);

[0174] When the location of the time-frequency resource corresponding to the reference signal* is {k 1 ,l 1}, which represents identification information 2 (such as device 2);

[0175] When the location of the time-frequency resource corresponding to the reference signal* is {k 0 ,l 1}, which represents identification information 3 (such as device 3);

[0176] When the location of the time-frequency resource corresponding to the reference signal* is {k 0 ,l 2}, which represents identification information 4 (such as device 4);

[0177] When the location of the time-frequency resource corresponding to the reference signal* is {k 3 ,l 2}, which represents identification information 5 (such as device 5).

[0178] As shown in Table 2, the positions of the time-frequency resources corresponding to different reference signals* can represent the identification information of different target receiving ends. In this way, the identification information of the target receiving end can be carried in the position of the time-frequency resources corresponding to the reference signal*.

[0179] As an example, the identifier of the target receiving end can be expressed as: ID = k 0 +k 0 *l 0 (Other formulas may also be used, which are not limited to this.) In this way, the second device can determine the identifier of the target receiving end according to the formula, and then determine whether it is the target receiving end of S-SSB*.

[0180] Figure 6 FIG. 1 is a schematic diagram of time-frequency resources corresponding to another reference signal in an embodiment of the present application. Figure 6As shown, symbols 5 to 12 are used to transmit PSBCH, and reference signal* can be carried in the frequency domain resources corresponding to symbols 5 to 12. The present application also supports carrying identification information of the target receiving end according to the pattern of the position of the time-frequency resources corresponding to the reference signal*.

[0181] In one example, the pattern of the position of the time-frequency resource corresponding to the reference signal * is pattern 1. Exemplarily, the reference signal * is carried on the 7th RE and the 8th RE of the 12 REs corresponding to symbol 7 and symbol 8, respectively. The position of the time-frequency resource corresponding to the reference signal * is expressed as: {X=2, k 0 =6, l 0 =7} and {X=2, k 0 =6, l 0 =8}.

[0182] In another example, the pattern of the position of the time-frequency resource corresponding to the reference signal * is pattern 2. Exemplarily, the reference signal * is carried on the 5th RE and the 6th RE of the 12 REs corresponding to symbol 9. The position of the time-frequency resource corresponding to the reference signal * can be expressed as: {X=2, k 0 =5,l 0 =9}.

[0183] In another example, the pattern of the position of the time-frequency resource corresponding to the reference signal * is pattern 3. Exemplarily, the reference signal * is carried on the 7th RE to the 10th RE of the 12 REs corresponding to symbol 12. The position of the time-frequency resource corresponding to the reference signal * can be expressed as: {X=4, k 0 =6, l 0 =12}.

[0184] When the side signal * includes a reference signal *, the identification information of the target receiving end can be carried in the pattern of the position of the time-frequency resource corresponding to the reference signal *. For example, the identification information of different target receiving ends can be represented by the patterns of the positions of the time-frequency resources corresponding to different reference signals *. Please refer to Table 3. The content shown in Table 3 is only understood as an example and is not a final limitation.

[0185] Table 3

[0186] Pattern of the location of the time-frequency resources corresponding to the reference signal* Identification information of the target receiving end Pattern 1 Identification information 1 Pattern 2 Identification information 2 Pattern 3 Identification information 3 Pattern 4 Identification information 4

[0187] As shown in Table 3:

[0188] When the pattern of the position of the time-frequency resource corresponding to the reference signal* is pattern 1, it represents identification information 1 (such as device 1);

[0189] When the pattern of the position of the time-frequency resource corresponding to the reference signal* is pattern 2, it represents identification information 2 (such as device 2);

[0190] When the pattern of the position of the time-frequency resource corresponding to the reference signal* is pattern 3, it represents identification information 3 (such as device 3);

[0191] When the pattern of the position of the time-frequency resource corresponding to the reference signal* is pattern 4, it represents identification information 4 (such as device 4).

[0192] As shown in Table 3, different patterns of the positions of the time-frequency resources corresponding to the reference signal* can represent different identification information of the target receiving end. In this way, the identification information of the target receiving end can be carried in the pattern of the positions of the time-frequency resources corresponding to the reference signal*.

[0193] The embodiment of the present application may predefine or preconfigure multiple patterns and the correspondence between the patterns and the identification information. In this way, the second device may determine the identification information of the target receiving end according to the pattern of the position of the time-frequency resource corresponding to the reference signal* and the correspondence.

[0194] Optionally, an embodiment of the present application also supports combining the position of the time-frequency resources corresponding to the reference signal* and the pattern of the position of the time-frequency resources corresponding to the reference signal* to jointly represent the identification information of the target receiving end.

[0195] For example, the location of the time-frequency resource corresponding to the reference signal* is {k 0 ,l 0} and the position of the time-frequency resource corresponding to the reference signal * is pattern 1, which represents identification information 1 (such as device 1); the position of the time-frequency resource corresponding to the reference signal * is {k 0 ,l 1 The pattern of the position of the time-frequency resource corresponding to the reference signal * is pattern 1, which represents identification information 2 (such as device 2), etc. In this way, the number of target receiving ends that can be represented can be achieved.

[0196] In the above description, the above reference signal* can be SL-CSI-RS or SL-demodulation reference signal (DMRS). In this way, the target receiving end can be indicated by the position of the time-frequency resource corresponding to the SL-CSI-RS; or, the target receiving end can be indicated by the position of the time-frequency resource corresponding to the SL-DMRS.

[0197] In summary, the positions of time-frequency resources corresponding to different reference signals can represent different target receiving ends, and can support distinguishing different target receiving ends.

[0198] In one possible implementation, the sidelink signal* includes a physical sidelink feedback channel (PSFCH) (or the sidelink signal* is PSFCH), and the frequency domain resources corresponding to the PSFCH and the cyclic shift within the frequency domain resources are used to indicate the target receiving end.

[0199] Combination Figure 3 As shown, S-SSB includes 8 PSBCHs, one of the 8 PSBCHs (or more) can be replaced with PSFCH, and the target receiving end is indicated by the frequency domain resources corresponding to the PSFCH and the cyclic shift within the frequency domain resources. For a description of the frequency domain resources corresponding to the PSFCH and the cyclic shift within the frequency domain resources, see Figure 7 .

[0200] Figure 7 FIG. 1 is a schematic diagram of a PSFCH time-frequency resource in an embodiment of the present application. Figure 7 As shown, exemplarily, the PSFCH is carried on the 12th symbol in the S-SSB* (or, the 8th PSBCH of the S-SSB* is replaced with the PSFCH, the PSFCH symbol corresponds to 11 RBs, each RB has 12 cyclic shifts, and the 11 RBs and the cyclic shifts therein can be used to characterize the identifiers of 132 different target receiving ends.

[0201] For example, PSFCH supports the generation of 12 distinguishable PSFCH sequences, and each PSFCH sequence is code-division multiplexed and sent on one RB. In one PSFCH symbol, assuming that a subchannel contains 10 RBs, and there are 3 subchannels in the resource pool, then the resource pool contains 3*10=30 RBs that can be used for PSFCH transmission. Therefore, a total of 30*12=360 different target receiving ends can be identified.

[0202] In summary, different frequency domain resources and cyclic shifts can represent different target receiving ends and can support distinguishing different target receiving ends.

[0203] It should be noted that the above content jointly represents the target receiving end by frequency domain resources and cyclic shift, but it can also be represented by one of them, for example, only by frequency domain resources or cyclic shift, and this is not limited.

[0204] The above-mentioned different embodiments of the side signal* can be combined with each other, for example, the side signal* includes an S-PSS sequence, an S-SSS sequence, and a reference signal*; for example, the side signal* includes an S-PSS sequence, an S-SSS sequence, and a PSFCH; for example, the side signal* includes a reference signal* and a PSFCH, etc. In this way, it is possible to indicate multiple target receiving ends.

[0205] The above content is described by taking the structure of S-SSB* including the side signal* and the side signal* as an example, and the above description is also applicable to the description of the association between S-SSB* and the side signal*. For the latter, the side signal* can refer to the above description and will not be repeated.

[0206] S402. The first device sends S-SSB* to the second device.

[0207] Accordingly, the second device receives S-SSB*.

[0208] The first device may broadcast the S-SSB* to multiple devices.

[0209] The first device may send S-SSB* to multiple devices in a multicast manner.

[0210] If the S-SSB* includes a side signal*, the second device may determine whether it is a target receiving end of the S-SSB* based on the side signal*.

[0211] If the S-SSB* does not include the side signal*, the S-SSB* is associated with the side signal*, the first device may also send the side signal* to the second device, and the second device may determine whether it is the target receiving end of the S-SSB* based on the side signal*.

[0212] If the S-SSB* does not include a side signal*, the S-SSB* is associated with a side signal*, and the first device does not send a side signal* to the second device, the side signal* associated with the S-SSB* may be preconfigured in the second device, and the side signal* may be indicated in other ways, for example, one or more bits may be carried in the S-SSB* (for example, the structure of the S-SSB* may be modified) to indicate to the second device the side signal* associated with the S-SSB*. In this way, the second device may determine whether it is the target receiving end of the S-SSB* based on the side signal*. Alternatively, the correspondence between the S-SSB and the reference signal may be preconfigured, and when the first device sends multiple S-SSBs to the second device, each S-SSB is associated with a side signal, and the second device determines the side signal corresponding to each S-SSB based on the aforementioned correspondence between the S-SSB and the side signal, and further determines whether it is the target receiving end.

[0213] In one possible implementation, the first device sending the S-SSB* to the second device may include: the first device sending a side signal* and the S-SSB* to the second device.

[0214] The side signal* may be included in the S-SSB* or may be independent of the S-SSB*, without limitation. When the side signal* is included in the S-SSB*, it may be sent through the same information, or the two may be sent at the same time, which may be understood as the first device sending the side signal* and the S-SSB* to the second device.

[0215] When the side signal* is independent of the S-SSB*, it can be sent through two different messages, or the two can be sent at different times, which can be understood as the first device sending the side signal* and the S-SSB* to the second device respectively. In this way, the second device can determine whether it is the target receiving end of the S-SSB* based on the side signal*.

[0216] In summary, the second device can determine whether it is the target receiving end of the S-SSB* based on the side signal*.

[0217] In summary, the first device sends an S-SSB to the second device, which includes or is associated with a side signal, and the side signal is used to indicate at least one target receiving end, and the target receiving end is the receiving end of the S-SSB. The second device can determine whether it is the target receiving end of the S-SSB according to the at least one target receiving end indicated by the side signal. If it is the target receiving end, the second device provides feedback on the S-SSB, and if it is not the target receiving end, the second device does not provide feedback on the S-SSB.

[0218] Compared with the second device feeding back all received S-SSBs, the above scheme allows the second device to only feed back the S-SSBs whose target receiving end is the second device, which can effectively reduce the overall power consumption and resource overhead of the receiving end during the beam management process. For example, the receiving end does not need to feed back the measurement results of each side synchronization signal block to the transmitting end.

[0219] In summary, when the transmitter sends an S-SSB to the receiver, it can indicate to the receiver whether it is the target receiver of the S-SSB. The receiver can only provide feedback for the S-SSB whose target receiver is the receiver, which is beneficial to reducing the overall power consumption of the receiver during the beam management process and the resource overhead of the receiver.

[0220] Optionally, the method may further include:

[0221] S403. The second device sends the measurement result of S-SSB* to the first device.

[0222] Accordingly, the first device receives the measurement result of S-SSB*.

[0223] After receiving the S-SSB*, the second device can determine whether the second device is the target receiving end of the S-SSB* based on the side signal*.

[0224] For example, when determined as the target receiving end of S-SSB*, the second device measures and provides feedback on S-SSB*.

[0225] For example, when it is determined that the second device is not the target receiving end of S-SSB*, the second device may not measure and feedback S-SSB*.

[0226] In summary, when the second device is determined as the target receiving end of S-SSB*, the second device measures the S-SSB* and sends the measurement results of the S-SSB* to the first device, which is conducive to realizing beam management between the first device and the second device, and can support determining a suitable beam pair between the first device and the second device.

[0227] In a possible implementation, the second device may determine whether to send the measurement result of S-SSB* to the first device according to the following conditions:

[0228] 1-The measurement result of S-SSB* exceeds the threshold;

[0229] The measurement result of 2-S-SSB* is the maximum value;

[0230] The measurement result of 3-S-SSB* is the maximum value and exceeds the threshold value.

[0231] If the measurement result of S-SSB* does not exceed the threshold, the second device may not send the measurement result of S-SSB* to the first device. If the measurement result of S-SSB* is not the maximum value, the second device may not send the measurement result of S-SSB* to the first device. If the measurement result of S-SSB* is the maximum value but does not exceed the threshold, the second device may not send the measurement result of S-SSB* to the first device. In this way, the overall power consumption and resource overhead of the second device can be effectively reduced.

[0232] In addition, the first device may send multiple S-SSBs to the second device, each S-SSB being associated with a sideline signal, as can be seen in Figure 8 and Fig. 9 .

[0233] Figure 8 Schematic diagram of the corresponding relationship between S-SSB and side signal in an embodiment of the present application. Figure 8As shown, the first device continuously sends S-SSB0, S-SSB1, S-SSB2, side signal 0, side signal 1 and side signal 2 to the second device. S-SSB0 is associated with side signal 0, S-SSB1 is associated with side signal 1, and S-SSB2 is associated with side signal 2. There is a one-to-one correspondence between the position of the time-frequency resources occupied by the S-SSB and the position of the time domain resources occupied by the side signal. In this way, after the second device receives S-SSB0, S-SSB1, S-SSB2, side signal 0, side signal 1 and side signal 2, the second device can determine that S-SSB0 is associated with side signal 0, S-SSB1 is associated with side signal 1 and S-SSB2 is associated with side signal 2 according to the mapping relationship between S-SSB and the side signal.

[0234] The second device can determine whether the target receiving end of the corresponding S-SSB is the second device based on the side signal, and only measure and feedback the S-SSB whose target receiving end is the second device.

[0235] It should be noted that the correspondence between the position of the time-frequency resources occupied by the above-mentioned S-SSB and the position of the time-frequency resources occupied by the sidelink signal can be predefined, configured, or preconfigured.

[0236] It is understandable that "predefined" can be understood as standard definition, which does not require other equipment configuration (and the network equipment or other terminal devices cannot be changed), and is information recorded / written in advance in the hardware and / or software of the terminal device itself.

[0237] It is understandable that "configuration" is divided into network device configuration and terminal device configuration. If it is network device configuration, it can be changed through system information block (SIB) or radio resource control (RRC) signaling. If it is terminal device configuration, it can be changed according to PC5-RRC signaling.

[0238] It is understandable that "pre-configuration" can be understood as information recorded / written in advance in the hardware and / or software of the terminal device itself, which is determined by the manufacturer of the equipment and can be changed through software or hardware.

[0239] After the second device obtains the measurement results of multiple S-SSBs, it can determine the measurement results of the S-SSBs that need to be fed back according to the above conditions. In this way, the resource overhead of the second device can be effectively reduced.

[0240] Fig. 9 FIG. 1 is another schematic diagram of the correspondence between S-SSB and side signals in an embodiment of the present application. Fig. 9As shown, each S-SSB is associated with two side signals, and each side signal is used to indicate a target receiving end. For example, S-SSB0 is associated with side signal 01 and side signal 02, and side signal 01 and side signal 02 are respectively used to indicate a target receiving end; S-SSB1 is associated with side signal 11 and side signal 12, and side signal 11 and side signal 12 are respectively used to indicate a target receiving end; S-SSB2 is associated with side signal 21 and side signal 22, and side signal 21 and side signal 22 are respectively used to indicate a target receiving end. There is a one-to-one mapping relationship between each S-SSB and the associated side signal. For a specific description, please refer to Figure 8 The description is not repeated here.

[0241] In this way, multiple target receiving ends can be indicated, which can improve transmission efficiency.

[0242] It should be noted that Figure 8 and Fig. 9 The content shown is described based on the example that the time-frequency resources occupied by S-SSB and the time domain resources occupied by the side signal are different, and the frequency domain resources occupied by S-SSB and the frequency domain resources occupied by the side signal are the same, but it is not limited to the scenario that the time-frequency resources occupied by S-SSB and the time domain resources occupied by the side signal are the same, and the frequency domain resources occupied by S-SSB and the frequency domain resources occupied by the side signal are different.

[0243] Therefore, in an embodiment of the present application, the time-frequency resources occupied by the S-SSB are different from the time-frequency resources occupied by the side signal. Among them, the time-frequency resources occupied by the S-SSB are different from the time-frequency resources occupied by the side signal, which may include: the time domain resources occupied by the S-SSB are the same as the time domain resources occupied by the side signal, and the frequency domain resources occupied by the S-SSB are different from the frequency domain resources occupied by the side signal; or, the time domain resources occupied by the S-SSB are different from the time domain resources occupied by the side signal, and the frequency domain resources occupied by the S-SSB are the same as the frequency domain resources occupied by the side signal; or, the time domain resources occupied by the S-SSB are different from the time domain resources occupied by the side signal, and the frequency domain resources occupied by the S-SSB are different from the frequency domain resources occupied by the side signal. When the second device sends the measurement result of S-SSB* to the first device, the second device can send the measurement result of S-SSB* at the corresponding report occasion (report occasion, RO), which can be referred to. Fig.10 .

[0244] Fig.10 Schematic diagram of the correspondence between S-SSB and reporting opportunities in an embodiment of the present application. Fig.10As shown, the second device receives S-SSB0, S-SSB1 and S-SSB2 respectively, and the second device sends the measurement result of S-SSB in the corresponding RO. For example, the measurement result of S-SSB0 is reported in RO0, the measurement result of S-SSB1 is reported in RO1, and the measurement result of S-SSB2 is reported in RO2.

[0245] The mapping relationship between S-SSB and RO may be predefined or preconfigured, and is not limited thereto.

[0246] It is understandable that "predefined" can be understood as standard definition, which does not require other equipment configuration (and the network equipment or other terminal devices cannot be changed), and is information recorded / written in advance in the hardware and / or software of the terminal device itself.

[0247] It is understandable that "configuration" is divided into network device configuration and terminal device configuration. If it is network device configuration, it can be changed through SIB or RRC signaling. If it is terminal device configuration, it can be changed according to PC5-RRC signaling.

[0248] It is understandable that "pre-configuration" can be understood as information recorded / written in advance in the hardware and / or software of the terminal device itself, which is determined by the manufacturer of the equipment and can be changed through software or hardware.

[0249] The above-mentioned RO can also be a resource used to feedback the measurement results of S-SSB. For example, RO can be a feedback resource or a resource, and the second device sends the corresponding S-SSB measurement results to the first device through the resource.

[0250] After receiving the measurement result of S-SSB* sent by the second device, the first device and the second device need to use the determined beam for further communication within the same time window (the second device measures S-SSB2 and obtains the highest reference signal received power (RSRP), which is fed back in RO2. Within the window, the first device uses the beam corresponding to S-SSB2, and the second device uses the beam corresponding to RO2). For example, the first device sends link establishment information to the second device through the beam corresponding to S-SSB2, and the second device receives the link establishment information through the beam corresponding to RO2. Each group of S-SSB and RO corresponds to a time window.

[0251] For the scenario of indicating identification information of multiple target receiving ends, the first device needs to use different beams in multiple time windows to send link establishment information to the corresponding devices. If the second device simultaneously feeds back the identification of the first device and the identification of the second device, the first device can send the link establishment information corresponding to the second device in the corresponding time window. Otherwise, the first device needs to send multiple link establishment information in each time window, and the multiple link establishment information corresponds to different devices.

[0252] Optionally, the second device may also carry the identification information of the first device when sending the measurement result of the S-SSB to the first device. In this way, the first device can determine that the measurement result of the S-SSB sent by the second device corresponds to the S-SSB sent by the first device to the second device.

[0253] In the above scheme, S-SSB* can also be used to indicate the identification information of the first device. For example, S-SSB* includes a side signal*, the side signal* is an S-PSS sequence and an S-SSS sequence, and the identification information of the first device is carried on the reference signal*; for example, S-SSB* includes a side signal*, the side signal* is an S-PSS sequence and an S-SSS sequence, and the identification information of the first device is carried on the PSFCH; for example, S-SSB* includes a side signal*, the side signal* is a reference signal*, and the identification information of the first device is carried on the S-PSS sequence and the S-SSS sequence. For example, S-SSB* is associated with the side signal*, and the identification information of the first device can be carried on the S-PSS sequence and the S-SSS sequence, and so on.

[0254] In summary, the above description about the identification information of the target receiving end is also applicable to the identification information of the first device, and will not be repeated here.

[0255] In addition, the determination of the identification information of the first device can also refer to the above description on how to determine the target receiving end, which is not repeated here.

[0256] The above content is described by taking the side signal * as an example to indicate the target receiving end, and S-SSB* can also be used to indicate the transmitting end. In this way, the second device can determine the transmitting end of S-SSB*, which is conducive to feeding back the measurement result of S-SSB* to the corresponding device.

[0257] In a possible implementation, S-SSB* can be used to indicate both the sender and the target receiver at the same time.

[0258] Specifically, exemplarily, the side signal * in the S-SSB* indicates the transmitter, and the S-PSS sequence and the S-SSS sequence in the S-SSB* indicate the target receiver; or, the side signal * in the S-SSB* indicates the target receiver, and the S-PSS sequence and the S-SSS sequence in the S-SSB* indicate the transmitter. In this way, the second device can determine the transmitter and the target receiver of the S-SSB*.

[0259] In one possible implementation, S-SSB* can be used to indicate a target receiving end, and the side signal* is used to indicate a transmitting end. When the target receiving end is indicated by S-SSB*, the target receiving end can be indicated by the S-PSS sequence and the S-SSS sequence in the S-SSB*, and the transmitting end can be indicated by the side signal. In this way, the second device can determine the transmitting end and the target receiving end of the S-SSB*.

[0260] Finally, the device embodiment of the embodiment of the present application is introduced.

[0261] In order to implement the functions in the method provided in the present application, the first device and the second device may include hardware structures and / or software modules, and implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. Whether one of the above functions is executed in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0262] Fig.11 11 is a schematic block diagram of a communication device according to an embodiment of the present application. The communication device includes a processing circuit 1110 and a transceiver circuit 1120, and the processing circuit 1110 and the transceiver circuit 1120 can be connected to each other via a bus 1130. The communication device can be a first device or a second device.

[0263] Optionally, the communication device may further include a memory 1140. The memory 1140 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 1140 is used for related instructions and data.

[0264] The processing circuit 1110 may be one or more central processing units (CPUs). When the processing circuit 1110 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0265] The processing circuit 1110 may be a signal processor, a chip, or other integrated circuit that can implement the method of the present application, or a partial circuit for processing functions in the aforementioned processor, chip or integrated circuit.

[0266] The transceiver circuit 1120 may also be a transceiver, or an input / output interface. The input / output interface is used for input or output of signals or data, and may also be referred to as an input / output circuit.

[0267] When the communication device is the first device, exemplarily, the processing circuit 1110 is configured to perform the following operations: determine S-SSB*; send S-SSB*, etc.

[0268] When the communication device is the second device, exemplarily, the processing circuit 1110 is used to perform the following operations: receiving S-SSB*; determining a target receiving end of the S-SSB* according to the sidelink signal*, etc.

[0269] The above contents are only used as exemplary descriptions. When the communication device is the first device or the second device, it will be responsible for executing the methods or steps related to the first device or the second device in the above method embodiments.

[0270] When the communication device is the first device or the second device, the transceiver circuit 1120 may be a transceiver. When the communication device is a chip for the first device or the second device, the transceiver circuit 1120 may be an input-output circuit. The above description is only an exemplary description.

[0271] For specific details, please refer to the contents shown in the above method embodiment.

[0272] Fig.11 The implementation of each operation in can also refer to Figure 4 The corresponding description of the method embodiment shown.

[0273] Fig.12 1 is a schematic block diagram of another communication device according to an embodiment of the present application. The communication device may be a first device or a second device, and is used to implement the method involved in the above embodiment.

[0274] The communication device includes a transceiver unit 1210 and a processing unit 1220. The transceiver unit 1210 and the processing unit 1220 are described below by way of example.

[0275] The transceiver unit 1210 may include a transmitting unit and a receiving unit. The transmitting unit is used to perform a transmitting action of the communication device, and the receiving unit is used to perform a receiving action of the communication device. For ease of description, the embodiment of the present application combines the transmitting unit and the receiving unit into one transceiver unit. A unified description is given here, and no further description is given later.

[0276] When the communication device is a first device, illustratively, the transceiver unit 1210 is used to send S-SSB*. The processing unit 1220 is used to determine S-SSB*. The processing unit 1220 can also be used to execute the content of the first device involving processing, control and other steps.

[0277] When the communication device is the second device, illustratively, the transceiver unit 1210 is used to receive the S-SSB*; the processing unit 1220 is used to determine the target receiving end of the S-SSB* according to the side signal*. The processing unit 1220 can also be used to execute the content of the processing, control and other steps involved in the second device.

[0278] When the communication device is the first device or the second device, it will be responsible for executing one or more of the methods or steps related to the first device or the second device in the aforementioned method embodiment.

[0279] Optionally, the communication device further includes a storage unit 1230, which is used to store a program or code for executing the aforementioned method.

[0280] Fig.12 The transceiver unit in can correspond to Fig.11 The transceiver circuit, Fig.12 The processing units in can correspond to Fig.11 processing circuit.

[0281] Fig.11 and Fig.12 The device embodiment shown is used to implement Figure 4 The content described.

[0282] Fig.11 and Fig.12 The specific execution steps and methods of the device shown can refer to the contents described in the aforementioned method embodiment.

[0283] The present application also provides a chip, including a processor, for calling and executing instructions stored in a memory from the memory, so that a communication device equipped with the chip executes the methods in the above examples. The memory can be integrated into the chip, or located outside the chip.

[0284] The present application also provides another chip, including: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is used to execute the code in the memory, and when the code is executed, the processor is used to execute the method in each of the above examples. Optionally, the chip also includes a memory, and the memory is used to store computer programs or codes.

[0285] The present application also provides a processor, which is coupled to a memory and is used to execute the methods and functions involving a network device or a terminal device in any of the above-mentioned embodiments.

[0286] In another embodiment of the present application, a computer program product including instructions is provided. When the computer program product is run on a computer, the method of the above embodiment is implemented.

[0287] The present application also provides a computer program. When the computer program is executed in a computer, the method of the above embodiment is implemented.

[0288] In another embodiment of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0289] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0290] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0291] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When a computer instruction or computer program is loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instruction can be transmitted from a website site, a computer, a server or a data center by wired or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or a data center containing one or more available media sets. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0292] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0293] It can be appreciated by a person skilled in the art that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or in combination with computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. It can be clearly understood by a person skilled in the art that for the convenience and simplicity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0294] The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in each embodiment of the present application may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. If the above functions are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions for a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a disk or an optical disk.

[0295] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Claims

1. A communication method, characterized in that: include: Determine a sideline synchronization signal block, wherein the sideline synchronization signal block includes a sideline signal, or the sideline synchronization signal block is associated with the sideline signal, and the sideline signal is used to indicate at least one target receiving end; Send the sideline synchronization signal block.

2. The method according to claim 1, characterized in that The sidewalk signal includes a sidewalk primary synchronization signal sequence and / or a sidewalk secondary synchronization signal sequence, and the sidewalk primary synchronization signal sequence and / or the sidewalk secondary synchronization signal sequence are used to indicate the at least one target receiving end.

3. The method according to claim 1, characterized in that The sidelink signal includes a physical sidelink feedback channel, and the frequency domain resources corresponding to the physical sidelink feedback channel and / or the cyclic shift within the frequency domain resources are used to indicate the at least one target receiving end.

4. The method according to claim 1, characterized in that The sidelink signal includes a reference signal, and the position of the time-frequency resource corresponding to the reference signal is used to indicate the at least one target receiving end.

5. The method according to claim 4, characterized in that The reference signal is located in a physical sidelink broadcast channel included in the sidelink signal.

6. The method according to claim 4 or 5, characterized in that: The reference signal is a sidelink channel state information reference signal or a sidelink demodulation reference signal.

7. The method according to any one of claims 1 to 6, characterized in that The sidelink signal includes at least one piece of identification information, and the at least one piece of identification information corresponds one-to-one to the at least one target receiving end.

8. The method according to any one of claims 1 to 7, characterized in that The side synchronization signal block is used to indicate the transmitting end.

9. The method according to any one of claims 1 to 8, characterized in that The determining of the side synchronization signal block comprises: Determining at least two sideline synchronization signal blocks, wherein the at least two sideline synchronization signal blocks are associated with at least two sideline signals; There is a one-to-one mapping relationship between the position of the time-frequency resource occupied by each sideline synchronization signal block in the at least two sideline synchronization signal blocks and the position of the time-frequency resource occupied by the corresponding sideline signal in the at least two sideline signals; The sending of the sideline synchronization signal block comprises: The at least two sideline synchronization signal blocks are sent.

10. A communication method, characterized in that: include: receiving a sideline synchronization signal block, wherein the sideline synchronization signal block includes a sideline signal, or the sideline synchronization signal block is associated with the sideline signal, and the sideline signal is used to indicate at least one target receiving end; A target receiving end of the sidelink synchronization signal block is determined according to the sidelink signal.

11. The method according to claim 10, characterized in that The sidewalk signal includes a sidewalk primary synchronization signal sequence and / or a sidewalk secondary synchronization signal sequence, and the sidewalk primary synchronization signal sequence and / or the sidewalk secondary synchronization signal sequence are used to indicate the at least one target receiving end.

12. The method according to claim 10, characterized in that The sidelink signal includes a physical sidelink feedback channel, and the frequency domain resources corresponding to the physical sidelink feedback channel and / or the cyclic shift within the frequency domain resources are used to indicate the at least one target receiving end.

13. The method according to claim 10, characterized in that The sidelink signal includes a reference signal, and the position of the time-frequency resource corresponding to the reference signal is used to indicate the at least one target receiving end.

14. The method according to claim 13, characterized in that The reference signal is located in a physical sidelink broadcast channel included in the sidelink signal.

15. The method according to any one of claims 10 to 14, characterized in that The sidelink signal includes at least one piece of identification information, and the at least one piece of identification information corresponds one-to-one to the at least one target receiving end.

16. The method according to any one of claims 10 to 15, characterized in that The side synchronization signal block is used to indicate the transmitting end.

17. The method according to any one of claims 13 to 16, characterized in that The reference signal is a sidelink channel state information reference signal or a sidelink demodulation reference signal.

18. The method according to any one of claims 10 to 17, characterized in that The receiving side line synchronization signal block includes: receiving at least two sideline synchronization signal blocks, wherein the at least two sideline synchronization signal blocks are associated with at least two sideline signals; There is a one-to-one mapping relationship between the position of the time-frequency resources occupied by each sideline synchronization signal block in the at least two sideline synchronization signal blocks and the position of the time-frequency resources occupied by the corresponding sideline signal in the at least two sideline signals.

19. The method according to any one of claims 10 to 18, characterized in that The method further comprises: Send the measurement result of the sideline synchronization signal block.

20. A communication device, characterized in that: Comprising modules for performing the method as claimed in any one of claims 1 to 9, or claims 10 to 19.

21. A communication device, characterized in that: include: A processor for executing computer instructions stored in the memory, so that the communication device performs the method according to any one of claims 1 to 9, or, So that the communication device performs the method according to any one of claims 10 to 19.

22. The communication device according to claim 21, characterized in that The communication device also includes a memory.

23. The communication device according to claim 21 or 22, characterized in that: The communication device further includes a communication interface, which is coupled to the processor and is used to input and / or output information.

24. A chip, characterized in that: The chip is connected to the memory, The chip is used to read and execute the software program stored in the memory, To implement as claimed in claims 1 to 9, or, A method as claimed in any one of claims 10 to 19.

25. A computer-readable storage medium, characterized in that: The computer readable storage medium stores computer instructions. When the computer instructions are executed on a computer, The method according to any one of claims 1 to 9 is performed, or, The method as claimed in any one of claims 10 to 19 is performed.

26. A computer program product, characterized in that The computer program product includes computer program code, When the computer program code is run on a computer, The method according to any one of claims 1 to 9 is performed, or, The method as claimed in any one of claims 10 to 19 is performed.

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