Communication method and apparatus

Abstract

Provided in the present application are a communication method and apparatus. In the method, a first terminal device having distributed antenna sets is defined, and the position, on the first terminal device, of at least one of K antenna sets is indicated by means of first information.

Description

Communication method and apparatus

[0001] This application claims priority to the Chinese Patent Application No. 202410482191.3, filed on April 19, 2024, and entitled "A Communication Method and Apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, and in particular to a communication method and apparatus. BACKGROUND

[0003] Currently, a mobile communication system usually uses multiple-input multiple-output (MIMO) technology to use multiple transmitting antennas and receiving antennas at the transmitting end and the receiving end respectively without increasing the bandwidth. However, such a multi-antenna mobile communication system usually only defines the number of antennas of a terminal device, for example, the number of receiving antennas of a 5G new radio (NR) terminal is 4. In this way, only the number of receiving antennas is considered in the transmission performance of the multi-antenna, and the transmission performance of the multi-antenna is not fully utilized.

[0004] Therefore, how to fully utilize the transmission performance of the multi-antenna is a hot issue of current research. SUMMARY

[0005] The present application provides a communication method and apparatus, which fully utilizes the characteristics of distributed antenna deployment for more effective information transmission, and improves the transmission performance of the distributed antenna communication terminal.

[0006] In a first aspect, a communication method is provided. The method can be performed by a first apparatus, or by a module (e.g., a processor, a chip, or a chip system) applied to the first apparatus, or by a logic node, a logic module, or software that can realize all or part of the functions of the first apparatus. For the convenience of description, the method performed by the first apparatus is taken as an example for introduction below.

[0007] The method includes determining first information, the first information indicating a position of at least one antenna set in the K antenna sets on a first terminal device, the K antenna sets being distributed on the first terminal device, any antenna set in the K antenna sets containing at least one antenna, and K being an integer greater than 1. The first apparatus sends the first information.

[0008] According to the method of the first aspect, by defining the first terminal device with the distributed antenna set, and by indicating the position of at least one antenna set in the K antenna sets on the first terminal device through the first information, the spatial position information of the antenna set can be indicated to other terminal devices or network devices, so that other terminal devices or network devices can select a corresponding transmission mode based on the spatial position information of the distributed antenna set, and more efficient information transmission is realized, and the transmission performance of the terminal device with the distributed antenna set is improved.

[0009] Optionally, the first terminal device comprises a first vehicle.

[0010] Optionally, the distance between each two antenna sets in the K antenna sets is greater than or equal to a preset distance threshold. The preset distance threshold can be an arbitrary threshold value set according to actual conditions or needs, such as 10 times the wavelength (λ), or 15λ, etc. By setting the antenna set with a distance greater than or equal to the preset distance threshold on the first terminal device, the spatial correlation between the antenna sets can be reduced, so that it is more likely to ensure that at least one antenna set is not blocked by an obstacle, i.e., the channel quality of at least one antenna set is ensured, and better transmission performance is obtained.

[0011] Optionally, the communication method can further comprise: sending second information, the second information indicating the type of the first terminal device, and the type of the first terminal device being a terminal device with a distributed antenna set. It can be understood that the type of the first terminal device is sent to other terminal devices or network devices, and other terminal devices or network devices can obtain the form of the first terminal device according to the type of the first terminal device, so that other terminal devices or network devices can accurately obtain the deployment information of the distributed antenna set according to the form of the first terminal device, and the channel transmission performance under the distributed antenna is improved.

[0012] Optionally, the first antenna set in the K antenna sets contains more than one antenna, and the distance between any two antennas in the first antenna set is less than the distance between any two antenna sets. That is, the distance between any two antenna sets is greater than the distance between antennas in an antenna set, so as to ensure that the antenna set is a distributed antenna set, thereby reducing the spatial correlation between the antenna sets, and better transmission performance is obtained.

[0013] In a possible implementation, the first terminal device is provided with M positions, and the K antenna sets are located in at least part of the M positions, M is an integer greater than 1, and K is less than or equal to M.

[0014] The M positions are predefined by the first device and shared with the second device, or the protocol can also predefine the M positions for both the first device and the second device, that is, in either way, the first device and the second device are aligned on the M positions, so that when the first device indicates the positions of the K antenna sets in the M positions by the K antenna sets, the second device can accurately locate the positions of the K antenna sets based on the K antenna sets in the M positions.

[0015] Optionally, the first information indicates whether an antenna set is arranged at each of the M positions and the number of antennas at the positions of the M positions where the antenna sets are arranged. This indication form of the first information can be for the case that the number of antennas at the positions of the M positions where the antenna sets are arranged is the same, and this indication form is simpler and saves overhead.

[0016] Optionally, the first information indicates the number of antennas at each of the M positions. This indication form of the first information can be for the case that the number of antennas at the positions of the M positions where the antenna sets are arranged is different, and this indication form is more flexible.

[0017] In another possible implementation, the K antenna sets have N position distributions on the first terminal device, the N position distributions correspond to N antenna patterns one by one, the first information includes a target antenna pattern in the N antenna patterns, and N is an integer greater than 1.

[0018] It can be understood that the N position distributions can be N distribution cases of the positions of the K antenna sets on the first terminal device, the position distributions correspond to the antenna patterns one by one, and one position distribution is indicated by one antenna pattern. The N antenna patterns can be predefined by the first device and shared with the second device, or the protocol can also predefine the N antenna patterns for both the first device and the second device, that is, in either way, the first device and the second device are consistent in understanding the N antenna patterns, so that when the first device indicates the position distribution of the antenna sets on the first terminal device by the target antenna pattern, the second device can also determine the target position distribution of the antennas when the target antenna pattern is received.

[0019] Optionally, the first terminal device is provided with M positions, and the N position distributions are N combinations of different positions in the M positions, and M is an integer greater than 1.

[0020] The M positions can be positions where the first device can deploy the antenna sets on the first terminal device, and any K positions are selected from the M positions to form a position distribution, and the N position distributions can be combinations of different K positions in the M positions, so that the N position distributions are generated in a more flexible manner, and a position distribution combination meeting current requirements can be generated according to actual requirements.

[0021] In yet another possible implementation, the position of the at least one antenna set on the first terminal device comprises spatial position coordinates of the at least one antenna set, and the first information indicates the spatial position coordinates of the at least one antenna set of the K antenna sets. The spatial position coordinates of the at least one antenna set can be coordinates with any position on the first terminal device as the origin, and the spatial position coordinates can be spatial rectangular coordinates, spatial vector coordinates, etc. In addition, the position of the at least one antenna set on the first terminal device can also be two-dimensional coordinates. The position of the at least one antenna set on the first terminal device is indicated by the spatial position coordinates, so that the indication information is more flexible and accurate.

[0022] Optionally, the spatial position coordinates of the at least one antenna set of the K antenna sets are coordinates relative to a reference position. The first information further indicates spatial position coordinates of the reference position. It can be understood that the reference position herein can be any position on the first terminal device, and the reference position can be taken as the reference point of the spatial position coordinates, or in other words, the reference position can be taken as the origin. In other words, the reference position can be dynamically set according to actual conditions, such as different reference positions according to different forms of the terminal, so that the position setting is more flexible.

[0023] Optionally, the reference position is a position of any antenna set of the K antenna sets on the first terminal device. That is, the position of the antenna set deployed on the first terminal device can be taken as the reference position, so that the spatial position coordinates of the antenna set of the reference position do not need to be explicitly indicated, so as to reduce the communication overhead.

[0024] In a second aspect, a communication method is provided. The method can be executed by a second device, or by a module (for example, a processor, a chip, or a chip system, etc.) applied to the second device, or by a logic node, a logic module, or software that can implement all or part of the functions of the first device. For the convenience of description, the method is introduced below by taking the example of being executed by the second device.

[0025] The method comprises: receiving first information; obtaining, according to the first information, a position of at least one antenna set of K antenna sets on a first terminal device, any antenna set of the K antenna sets comprising at least one antenna, and K being an integer greater than 1; and transmitting third information according to the position of the at least one antenna set on the first terminal device.

[0026] Optionally, the sending the third information according to the positions of the at least one antenna set on the first terminal device can comprise: determining the strength of the reference signal of the at least one antenna set; determining the second antenna set according to the strength of the reference signal of the at least one antenna set, the second antenna set comprising an antenna set whose strength of the reference signal is greater than a preset threshold in the at least one antenna set; and sending the third information according to the positions of the second antenna set on the first terminal device.

[0027] It can be understood that the strength of the reference signal of the antenna set can be the strength of the reference signal of any antenna in the antenna set, or the total strength of the reference signal of the antennas in the antenna set. The antenna set whose strength of the reference signal is greater than the preset threshold in the at least one antenna set is determined as the second antenna set, that is, the strength of the reference signal of any antenna set in the second antenna set is greater than the preset threshold, wherein the preset threshold can be a threshold value set according to actual conditions and needs. That is, the antenna in the antenna set with greater strength of the reference signal can be used to transmit the third information, thereby improving the transmission performance.

[0028] Optionally, the at least one antenna set comprises a third antenna set. The communication method can further comprise: measuring the reference signal of the third antenna set to obtain channel information of the third antenna set; and correcting the channel information of the third antenna set based on the channel information of the third antenna set and the positions of the third antenna set on the first terminal device to obtain corrected channel information of the third antenna set.

[0029] The third antenna set can be any antenna set in the at least one antenna set, and the channel information of any antenna set can be corrected by the channel information of the antenna set and the positions of the antenna set on the first terminal device. In this way, on the basis of realizing diversity gain transmission, the transmission performance can be further improved according to the deployment position information of the antenna set on the first terminal device.

[0030] Optionally, the communication method can further comprise: receiving the second information, the second information indicating that the type of the first terminal device is a terminal device with distributed antenna sets.

[0031] Optionally, the first information indicates whether an antenna set is arranged at each of the M positions of the first terminal device, and the number of antennas arranged at the positions with the antenna sets in the M positions.

[0032] Optionally, the first information indicates the number of antennas at each of the M positions of the first terminal device.

[0033] Optionally, the first information comprises a target antenna pattern; and the obtaining the position of the at least one antenna set on the first terminal device according to the first information can comprise: determining a target position distribution corresponding to the target antenna pattern according to the pre-configured N antenna patterns; the N antenna patterns correspond to N position distributions one by one, the N position distributions are position distributions of the K antenna sets on the first terminal device, and the target antenna pattern is one of the N antenna patterns; and determining the position of the at least one antenna set on the first terminal device according to the target position distribution.

[0034] Optionally, the position of the at least one antenna set on the first terminal device comprises spatial position coordinates of the at least one antenna set, and the first information indicates the spatial position coordinates of the at least one antenna set in the K antenna sets.

[0035] Optionally, the spatial position coordinates of the at least one antenna set in the K antenna sets are coordinates relative to a reference position.

[0036] Optionally, the first information further indicates spatial position coordinates of the reference position.

[0037] Optionally, the reference position is a position of any antenna set in the K antenna sets on the first terminal device.

[0038] It can be understood that the technical effects of the method of the second aspect described above can also be referred to the above-mentioned related introduction of the first aspect, which will not be repeated here.

[0039] In a third aspect, a communication apparatus is provided. The communication apparatus can comprise a processor configured to perform the method of the first aspect or any of the embodiments of the first aspect, or perform the method of the second aspect or any of the embodiments of the second aspect.

[0040] In a possible implementation, the communication apparatus of the third aspect can further comprise a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be configured to enable the communication apparatus of the third aspect to communicate with other communication apparatuses.

[0041] In a possible implementation, the communication apparatus of the third aspect can further comprise a memory. The memory can be integrated with the processor, or can be separately arranged. The memory can be configured to store computer programs and / or data related to the method of the first aspect or any of the embodiments of the first aspect, or the method of the second aspect or any of the embodiments of the second aspect.

[0042] In addition, the technical effects of the communication apparatus of the third aspect can refer to the technical effects of the first aspect or any of the implementation manners of the first aspect, or can refer to the technical effects of the second aspect or any of the implementation manners of the second aspect, which will not be repeated here.

[0043] In a fourth aspect, a communication apparatus is provided. The communication apparatus includes a processor coupled with a memory, and the processor is configured to execute computer programs or instructions stored in the memory, so that the communication apparatus performs the method of the first aspect or any of the implementation manners of the first aspect, or so that the communication apparatus performs the method of the second aspect or any of the implementation manners of the second aspect.

[0044] The communication apparatus can be referred to as a first apparatus, or as a second apparatus.

[0045] In a possible implementation, the communication apparatus can further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication apparatus to communicate with other communication apparatuses.

[0046] In a possible implementation, the communication apparatus further includes the memory for storing the above-mentioned computer programs or instructions. Optionally, the memory and the processor are integrated together.

[0047] In addition, the technical effects of the communication apparatus of the fourth aspect can refer to the technical effects of the first aspect or any of the implementation manners of the first aspect, or can refer to the technical effects of the second aspect or any of the implementation manners of the second aspect, which will not be repeated here.

[0048] In a fifth aspect, a communication apparatus is provided. The communication apparatus is configured to implement the method of the first aspect or any of the implementation manners of the first aspect. The communication apparatus can be referred to as a first apparatus.

[0049] In a sixth aspect, a communication apparatus is provided. The communication apparatus is configured to implement the method of the second aspect or any of the implementation manners of the second aspect. The communication apparatus can be referred to as a second apparatus.

[0050] In a seventh aspect, a communication system is provided. The communication system includes a first apparatus configured to perform the method of the first aspect or any of the implementation manners of the first aspect, and a second apparatus configured to perform the method of the second aspect or any of the implementation manners of the second aspect.

[0051] In an eighth aspect, a computer-readable storage medium is provided, including computer programs or instructions; when the computer programs or instructions are executed, the method of the first aspect or any of the implementation manners of the first aspect is implemented, or the method of the second aspect or any of the implementation manners of the second aspect is implemented.

[0052] In a ninth aspect, a computer program product is provided, including a computer program or instructions, when the computer program or instructions are executed, causing the method of the first aspect or any of the embodiments of the first aspect to be implemented, or causing the method of the second aspect or any of the embodiments of the second aspect to be implemented. BRIEF DESCRIPTION OF DRAWINGS

[0053] FIG. 1 is a schematic diagram of an architecture of a V2X communication technology;

[0054] FIG. 2 is a schematic diagram of positions of antennas deployed by a vehicle;

[0055] FIG. 3 is a schematic diagram of an antenna array;

[0056] FIG. 4 is a schematic diagram of a structure of a communication system according to an embodiment of the present application;

[0057] FIG. 5 is a schematic diagram of a structure of a communication system according to an embodiment of the present application;

[0058] FIG. 6 is a schematic diagram of an application scenario of a communication system according to an embodiment of the present application;

[0059] FIG. 7 is a schematic diagram of a flow of a communication method according to an embodiment of the present application;

[0060] FIG. 8 is a schematic diagram of positions of a set of antennas deployed by a terminal device according to an embodiment of the present application;

[0061] FIG. 9 is a schematic diagram of an antenna pattern according to an embodiment of the present application;

[0062] FIG. 10 is a schematic diagram of an antenna pattern according to an embodiment of the present application;

[0063] FIG. 11 is a schematic diagram of an antenna pattern according to an embodiment of the present application;

[0064] FIG. 12 is a schematic diagram of position parameters of a set of antennas according to an embodiment of the present application;

[0065] FIG. 13 is a schematic diagram of position parameters of a set of antennas according to an embodiment of the present application;

[0066] FIG. 14 is a schematic diagram of spatial position coordinates of a set of antennas according to an embodiment of the present application;

[0067] FIG. 15 is a schematic diagram of spatial position coordinates of a set of antennas according to an embodiment of the present application;

[0068] FIG. 16 is a schematic diagram of a transmission beam of a base station according to an embodiment of the present application;

[0069] FIG. 17 is a schematic diagram of a spatial relationship between sets of antennas according to an embodiment of the present application;

[0070] FIG. 18 is a structural schematic diagram of a communication device according to an embodiment of the present application;

[0071] FIG. 19 is a structural schematic diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0072] Cellular vehicle to everything (C-V2X) is a V2X communication technology developed based on a cellular system. The V2X communication technology utilizes and enhances the current cellular network functions and elements to achieve low-latency and high-reliability communication between various nodes in a vehicle network. As shown in FIG. 1, the V2X communication technology includes vehicle to vehicle (V2V), vehicle to pedestrian (V2P), vehicle to infrastructure (V2I), and vehicle to network (V2N). With the evolution of the cellular system from 4G long term evolution (LTE) to 5G NR, C-V2X evolves from LTE-V2X to NR-V2X. 5G NR V2X can support lower transmission latency, more reliable communication transmission, higher throughput, better user experience, and meet the needs of more extensive application scenarios. Further, the vehicle to vehicle communication technology supported by V2X can be extended to device-to-device (D2D) communication under any system.

[0073] A vehicle has a large volume. The length, width, and height of an ordinary vehicle can reach 5 m, 2 m, and 1.8 m, respectively. Therefore, a vehicle as a communication terminal has conditions to deploy antennas at multiple different locations far away from each other. As shown in FIG. 2, the roof, rearview mirror, front and rear bumpers, and other locations of a vehicle can be used as locations to deploy communication antennas. FIG. 2 only shows a part of the locations where communication antennas can be deployed. Similarly, a large-volume carrier such as a drone or a ship has conditions to deploy antennas at multiple different locations far away from each other when serving as a communication terminal.

[0074] At present, for a multi-antenna system, common antenna models include three kinds of antenna arrays (AAs), i.e., a linear array, a circular array and a planar array, as shown in FIG. 3. The spacing between antennas in each antenna array is generally λ / 2, where λ is the wavelength. In a mobile communication system, only the number of antennas of a terminal is defined, without considering the form or deployment manner of the antennas. For example, the number of receiving antennas of a 5G NR terminal is 4, and how the 4 antennas are designed and deployed on a mobile phone is an implementation behavior of the mobile phone terminal. That is, for a communication terminal with antennas arranged at multiple different positions, a base station or other terminal device cannot identify the deployment manner of the antennas, and only regards the communication terminal with distributed antennas as an ordinary terminal (e.g., a mobile phone), and cannot fully utilize the antenna deployment characteristics of the communication terminal to perform more effective information transmission, resulting in a loss of transmission performance of the communication terminal with distributed antennas.

[0075] To solve the above technical problems, the embodiments of the present application propose the following technical solutions.

[0076] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0077] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as a wireless network (Wi-Fi) system, a vehicle to everything (V2X) communication system, a device-to-device (D2D) communication system, a machine to machine (M2M) communication system, a machine type communication (MTC) system, an internet of things (IoT) communication system, a vehicle-to-vehicle communication system, a 4th Generation (4G) mobile communication system such as an LTE system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, etc., a 5th Generation (5G) mobile communication system such as an NR system, and a 6G or later evolved communication system of 5G, etc.

[0078] In the embodiments of the present application, the indication can include direct indication and indirect indication, and can also include explicit indication and implicit indication. The information indicated by certain information (e.g., the first indication information, the second indication information, or the third indication information, etc. below) is referred to as to-be-indicated information. In the implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information, etc. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (e.g., a protocol), thereby reducing the indication overhead to a certain extent. Meanwhile, a common part of each information can be identified and uniformly indicated, so as to reduce the indication overhead caused by separately indicating the same information.

[0079] In addition, the specific indication manner can also be various existing indication manners, for example, but not limited to, the above indication manners and various combinations thereof, etc. As described above, for example, when multiple information of the same type needs to be indicated, the indication manners of different information can be different. In the implementation process, the required indication manner can be selected according to the specific needs, and the selected indication manner is not limited in the embodiments of the present application. In this way, the indication manner involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information.

[0080] It should be understood that the to-be-indicated information can be sent as a whole, or can be divided into multiple sub-information and sent separately, and the sending period and / or sending occasion of the sub-information can be the same or different. The specific sending method is not limited in the embodiments of the present application. The sending period and / or sending occasion of the sub-information can be pre-defined, for example, pre-defined according to a protocol, or can be configured by the sending node device by sending configuration information to the receiving node device.

[0081] The "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in the device, and the specific implementation manner is not limited in the embodiments of the present application. The "saving" can mean saving in one or more memories. The one or more memories can be separately set, or can be integrated in the encoder or decoder, the processor, or the communication device. The one or more memories can be partially separately set and partially integrated in the decoder, the processor, or the communication device. The type of the memory can be any form of storage medium, and the present application is not limited thereto.

[0082] The "protocol" referred to in the embodiments of the present application can refer to a protocol family in the communication field, a standard protocol similar to the protocol family frame structure, or a related protocol applied to a future communication system, and the embodiments of the present application do not make specific limitations thereon.

[0083] In the embodiments of the present application, "when", "in the case of", "if", and the like all refer to the device making corresponding processing under certain objective conditions, and are not limited to time, and do not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0084] In the description of the embodiments of the present application, unless otherwise specified, " / " represents that the objects before and after the " / " are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the embodiments of the present application is only a description of the association relationship of the associated objects, and represents that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. In addition, in the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, "first", "second", and the like are used to distinguish the same items or similar items with basically the same function and role. Those skilled in the art can understand that "first", "second", and the like do not limit the quantity and execution order, and "first", "second", and the like do not necessarily mean different. At the same time, in the embodiments of the present application, "exemplary" or "for example" is used to represent as an example, illustration, or description. Any embodiment or implementation described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or implementations. Rather, "exemplary" or "for example" is used to present the relevant concept in a specific manner, for understanding.

[0085] The network architecture and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, as the network architecture evolves and new service scenarios appear, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0086] To facilitate understanding of the embodiments of the present application, first, a communication system shown in FIG. 4 is taken as an example to explain in detail the communication system applicable to the embodiments of the present application. For example, FIG. 4 is a schematic diagram of the architecture of a communication system applicable to the method provided by the embodiments of the present application.

[0087] As shown in FIG. 4, the communication system mainly includes a first device and a second device, wherein the first device can be a terminal, and the second device can be a network device such as a base station, or a terminal. The second device can be a general terminal (such as a mobile phone), or a new terminal type defined in the embodiments of the present application. The new terminal type defined in the embodiments of the present application can be a terminal deployed with a distributed antenna set, or a car, an intelligent connected car, a drone, etc. deployed with a distributed antenna set. The new terminal type can also be a terminal with a large volume, or a communication terminal with a transportation function.

[0088] In a possible scenario, the communication system can be applied to a 5G or future 6G communication system, for example, as shown in FIG. 5, the communication system 10 includes a radio access network (RAN) 100, a core network (CN) 200 and an Internet 300. The RAN 100 includes at least one RAN node (such as 110a and 110b in FIG. 5, collectively referred to as 110) and at least one terminal (such as 120a-120j in FIG. 5, collectively referred to as 120). The RAN 100 can also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 5), etc. The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0089] The RAN 100 can be a 3GPP related cellular system, for example, a 4G, 5G mobile communication system, or a future-oriented evolution system (such as a 6G mobile communication system). The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a Wi-Fi system. The RAN 100 can also be a communication system in which two or more of the above systems are integrated.

[0090] The RAN node 110, which can also be referred to as an access network device, a RAN entity, or an access node, etc., forms part of the communication system 10 and is responsible for enabling wireless access to the communication system 10 for terminals 120. The RAN nodes 110 in the communication system 10 can be the same type of node or different types of nodes. In some scenarios, the roles of the RAN node 110 and the terminal 120 are relative, e.g., the network element 120i in Figure 5 can be a helicopter or a drone, which can be configured to be a mobile base station. For a terminal 120j accessing the RAN 100 via the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN nodes 110 and the terminals 120 are sometimes referred to as communication devices, e.g., the network elements 110a and 110b in Figure 5 can be understood as communication devices with base station functionalities, and the network elements 120a-120j can be understood as communication devices with terminal functionalities.

[0091] In a possible scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access point (AP) in a Wi-Fi system, etc. The RAN node can be a macro base station (e.g., 110a in Figure 5), a micro base station or an indoor station (e.g., 110b in Figure 5), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the RAN node in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (e.g., a cloud platform). The RAN node in this application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0092] In another possible scenario, a terminal is assisted by multiple RAN nodes to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0093] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0094] It can be understood that the RAN node described above can be a newly defined name, and the RAN node can also have different expressions, such as an access node, a network device, a wireless access node, etc., without limitation. In this application, the network device is used for description hereinafter without special description.

[0095] The terminal can also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), V2X communication, machine-type communication (MTC), internet of things (IoT), smart point of sale (POS), customer-premises equipment (CPE), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart grid, smart furniture, smart office, smart wear (such as smart watch, smart bracelet, pedometer, smart glasses, etc.), smart transportation, smart city, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle device (such as whole vehicle device, vehicle-mounted module, vehicle-mounted chip, on board unit (OBU) or telematics box (T-BOX)), unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, satellite terminal, etc. Embodiments of the present application do not limit the device form of the terminal.

[0096] Embodiments provided in the present application can be applied to a system of user terminals and direct communication of user terminals such as V2X and D2D. The communication system can be suitable for communication scenarios with network coverage and without network coverage. The user can autonomously select the mode and can be within the coverage range of the network device or outside the coverage range of the network device. As shown in FIG. 6, UE1 and UE2 communicate through a Proximity Communication (PC5) interface. UE1 and UE2 can both be within the coverage range of the network device, both be outside the coverage range of the network device, or one be within the coverage range of the network device and the other be outside the coverage range of the network device.

[0097] In the communication system, by defining a first terminal device with a distributed antenna set and indicating the position of at least one antenna set in the K antenna sets on the first terminal device through first information, the spatial position information of the antenna set can be indicated to other terminal devices or network devices, so that other terminal devices or network devices can select a corresponding transmission mode based on the spatial position information of the distributed antenna set to perform more effective information transmission, thereby improving the transmission performance of the terminal device with the distributed antenna set.

[0098] Embodiments of the present application do not limit the device form of the network device, and the device for implementing the function of the network device can be the network device, or can be a device capable of supporting the network device to implement the function, such as a chip system. The device can be installed in the network device, or matched with the network device for use. In embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0099] The interaction process between the network elements / devices in the communication system will be specifically introduced below by means of method embodiments in combination with FIG. 7. The communication method provided in embodiments of the present application can be applied to the above-mentioned communication system, and specifically applied to various scenarios / processes mentioned in the above-mentioned communication system. The following will be specifically introduced.

[0100] FIG. 7 is a flowchart of the communication method provided in embodiments of the present application. The communication method is applied to the above-mentioned communication system, and mainly involves the interaction between the terminal and the network device.

[0101] As shown in FIG. 7, the flow of the communication method is as follows:

[0102] S701, a first device determines first information.

[0103] The first information indicates the position of at least one antenna set in the K antenna sets on the first terminal device, and the K antenna sets are distributed on the first terminal device. K is an integer greater than 1, that is, K is an integer greater than or equal to 2. Any antenna set in the K antenna sets contains at least one antenna, and the number of antennas contained in any antenna set in the K antenna sets is greater than or equal to 1. The number of antennas contained in each antenna set in the K antenna sets can be the same or different, which is not limited. For example, K is 3, and 3 antenna sets are distributed on the first terminal device. The 3 antenna sets include antenna set #1, antenna set #2, and antenna set #3. The antenna set #1 contains 1 antenna, the antenna set #2 contains 2 antennas, and the antenna set #3 contains 4 antennas. Alternatively, the antenna set #1, the antenna set #2, and the antenna set #3 each contain 2 antennas. The first information indicates the position of at least one antenna set in the 3 antenna sets on the first terminal device, such as the position of the antenna set #1 on the first terminal device, or the positions of the antenna set #1, the antenna set #2, and the antenna set #3 on the first terminal device.

[0104] An antenna set can be an antenna array / antenna subarray, such as a linear array, a ring array, or a surface array as shown in FIG. 2, which is deployed on the first terminal device. The antenna array form of each antenna set in the K antenna sets can be the same or different, which is not limited.

[0105] The position of at least one of the K antenna sets on the first terminal device can be the position of any antenna in the at least one antenna set on the first terminal device. In the case that the number of antennas in the at least one antenna set is greater than 1, the position of the at least one antenna set on the first terminal device can also be the position of each antenna in the at least one antenna set on the first terminal device respectively. For example, continuing the above example, the first information indicates the position of antenna set #1 on the first terminal device, the position of antenna set #1 on the first terminal device can also be the position of antenna #1 on the first terminal device, and the position of antenna set #1 on the first terminal device can also include the position of antenna #1 on the first terminal device, the position of antenna #2 on the first terminal device, and the position of antenna #3 on the first terminal device. Of course, the position of the at least one antenna set on the first terminal device can also be a position area / position range, and the antennas included in the at least one antenna set are distributed in the position area / position range.

[0106] It can be understood that the antenna set can also be replaced by any other possible expression, such as antenna combination, antenna array, antenna subarray, etc.

[0107] Optionally, the first terminal device includes a first vehicle. The first vehicle can be a type of vehicle, such as a vehicle manufactured by the same manufacturing method, a vehicle of the same volume, or a vehicle of the same form, etc., without limitation.

[0108] Optionally, the distance between each two of the K antenna sets is greater than or equal to a preset distance threshold.

[0109] The preset distance threshold can be an arbitrarily set threshold value according to actual conditions or needs, for example, the preset distance threshold is 10 times the wavelength (λ), the distance between each two of the K antenna sets is greater than or equal to 10λ, and the preset distance threshold can also be 15λ, 20λ, etc. any possible value, without limitation. It can be understood that the first terminal device can be a terminal device capable of deploying distributed antennas, for example, it can be a large-volume vehicle, such as a car, a smart connected car, a drone, etc. The large-volume first terminal device has the condition to deploy a distributed antenna set, and the distance between each two of the antenna sets is greater than or equal to the preset distance threshold. In this way, by setting the antenna set with a distance greater than or equal to the preset distance threshold on the first terminal device, the spatial correlation between the antenna sets can be reduced, thereby having a greater possibility of ensuring that at least one antenna set is not blocked by an obstacle, i.e. ensuring the channel quality of at least one antenna set, thereby obtaining better transmission performance.

[0110] Optionally, the number of antennas included in the first antenna set of the K antenna sets is greater than 1, and the distance between any two antennas in the first antenna set is less than the distance between any two antenna sets.

[0111] It can be understood that the first antenna set can be an antenna set with more than one antenna in the K antenna sets, and the first antenna set can be one or multiple. The distance between any two antenna sets is greater than the distance between antennas in the first antenna set. For example, antenna set #1 includes antenna #11 and antenna #12, antenna set #2 includes antenna #21, the distance between antenna #11 and antenna #12 is λ / 2, and the distance between antenna set #1 and antenna set #2 is 10λ, that is, the distance between antenna #11 and antenna #12 is less than the distance between antenna set #1 and antenna set #2. In addition, in the embodiments of the present application, the distributed antennas / distributed antenna sets are between each antenna set, and the antennas in the antenna set are not considered as distributed antennas.

[0112] The distance between two antenna sets is determined according to the position of the antenna set on the first terminal device. If the position of the antenna set on the first terminal device is the position of any antenna in the antenna set on the first terminal device, the distance between the two antenna sets is directly determined according to the position of the any antenna on the first terminal device. For example, the position of antenna set #1 on the first terminal device is the position of antenna #11 in antenna set #1, and the position of antenna set #2 on the first terminal device is the position of antenna #21 in antenna set #2. The distance between antenna set #1 and antenna set #2 is the distance between the positions of antenna #11 and antenna #21. If the position of the antenna set on the first terminal device is the position of each antenna in the antenna set on the first terminal device, the distance between the two antenna sets can be the distance between any antenna in one antenna set and any antenna in the other antenna set, or the maximum distance / minimum distance between the two antenna sets. For example, the distance between antenna set #1 and antenna set #2 can be the distance between any antenna in antenna set #1 and any antenna in antenna set #2. Or, it can be the minimum distance between antenna set #1 and antenna set #2, that is, the distance between the closest antennas in antenna set #1 and antenna set #2. Or, it can be the maximum distance between antenna set #1 and antenna set #2, that is, the distance between the farthest antennas in antenna set #1 and antenna set #2.

[0113] There are various ways to indicate the first information, and the following specifically introduces ways 1, 2, 3 and 4.

[0114] Way 1:

[0115] In a possible implementation, M positions are provided on the first terminal device, and the K antenna sets are located at at least part of the M positions, M is an integer greater than 1, and K is less than or equal to M.

[0116] It can be understood that the M positions can be positions predefined based on a form (such as a volume, a size, a shape, etc.) of the first terminal device, and the value of M can be different for terminal devices of different types or forms, and the M positions can also be different. The M positions can be predefined by the first device and shared with the second device, or the protocol can also define the M positions for the first device and the second device, that is, no matter which way, the first device and the second device are aligned on the M positions, that is, the first device and the second device can both know the M positions, so that in the case that the first device sets the positions of the K antenna sets in the M positions, the second device can accurately locate the positions of the K antenna sets based on the K antenna sets being located in the M positions. For example, as shown in FIG. 8, 1-8 represent positions #1-#8 predefined by the first terminal device, and the first terminal device sets the positions of the antenna sets in part or all of the positions #1-#8.

[0117] For another example, the first device predefines positions #1-#8 on a vehicle terminal, and the positions #1 and #2 correspond to two rearview mirrors respectively, the positions #3 and #4 correspond to two ends of a roof (or any two positions of the roof) respectively, the positions #5 and #6 correspond to two ends of a front bumper (or any two positions of the front bumper) respectively, and the positions #7 and #8 correspond to two ends of a rear bumper (or any two positions of the rear bumper) respectively. The first device shares the predefined 8 positions with the second device, and indicates the second device that 4 antenna sets are set in 4 positions in the 8 positions, so that the second device can accurately locate the 4 positions of the 4 antenna sets based on the 8 positions and the 4 positions in the 8 positions.

[0118] Corresponding to the first mode, that is, the mode of indicating by the K antenna sets being located in the M positions, the first information has two specific indication forms, which are described below.

[0119] Alternatively, the first information indicates whether an antenna set is set in each of the M positions, and the number of antennas in the positions of the M positions in which the antenna sets are set.

[0120] The indication form of the first information can be that the number of antennas in the positions where the antenna set is arranged in the M positions is the same, and the first information can be in the following indication form: (position #1, position #2, position #3, position #4, position #5, position #6, position #7, position #8, number of antennas). For example, the first information includes (1, 1, 0, 0, 0, 0, 1, 1, 2), which indicates that the antenna set is arranged in positions #1, #2, #7 and #8 respectively, and 2 antennas are arranged in each position. This indication form is relatively simple and saves overhead. It can be understood that the first information can indicate the positions of part or all of the K antenna sets on the first terminal device, and therefore, the 4 antenna sets arranged in the above example can represent the K antenna sets, or part of the antenna sets in the K sets.

[0121] Optionally, the first information indicates the number of antennas in each of the M positions.

[0122] It can be understood that the indication form of the first information can be for the case where the number of antennas in the positions where the antenna set is arranged in the M positions is different, and this indication form is more flexible. The first information can be in the following indication form: (number of antennas in position #1, number of antennas in position #2, number of antennas in position #3, number of antennas in position #4, number of antennas in position #5, number of antennas in position #6, number of antennas in position #7, number of antennas in position #8). For example, the first information includes (1, 2, 0, 4, 0, 0, 0, 0), which indicates that 1 antenna is arranged in position #1, 2 antennas are arranged in position #2, and 4 antennas are arranged in position #4.

[0123] Method 2:

[0124] In another possible implementation, the K antenna sets have N position distributions on the first terminal device, the N position distributions correspond to N antenna patterns one by one, and the first information includes a target antenna pattern in the N antenna patterns, and N is an integer greater than 1.

[0125] The N position distributions can be N distribution conditions of positions of the K antenna sets on the first terminal device, and the position distribution corresponds to an antenna pattern one by one, and an antenna pattern indicates a position distribution. The N antenna patterns can be predefined by the first device and shared with the second device, or the protocol can define the N antenna patterns for the first device and the second device, that is, no matter which way, the first device and the second device can know the N antenna patterns, and the first device and the second device understand the N antenna patterns consistently, so that when the first device indicates the position distribution of the antenna set on the first terminal device by the target antenna pattern, the second device can also determine the target position distribution of the antenna by receiving the target antenna pattern.

[0126] For example, as shown in FIG. 9, the first device defines three patterns, pattern 1 and pattern 2 are two distribution conditions of positions of four antenna sets on the first terminal device, and pattern 3 is one distribution condition of positions of six antenna sets on the first terminal device. The first information can be in the following two forms:

[0127] The first information can be in the following form 1: (pattern, number of antennas), for example, the first information includes (1, 2), indicating that the distribution condition of the positions of the four antenna sets on the first terminal device in pattern 1 includes positions #1, #2, #3, and #4, and the number of antennas in each of the four antenna sets is 2, or in other words, two antennas are deployed at each of the four positions. The form 1 is used for the case where the number of antennas deployed at each position is the same, or the number of antennas in each antenna set is the same, and this representation only needs to indicate a specific antenna pattern and the corresponding number of antennas, which is simple and saves overhead.

[0128] The first information can be in the following form 2: (pattern, position #1 number of antennas, position #2 number of antennas, position #3 number of antennas, position #4 number of antennas), that is, the first information can indicate the number of antennas at each position respectively, for example, continuing the above example, the first information includes (1, 2, 3, 2, 2), indicating that the distribution condition of the positions of the four antenna sets on the first terminal device in pattern 1 includes positions #1, #3, and #4, and each position is deployed with two antennas, and position #2 is deployed with three antennas. The form 2 is used for the case where the number of antennas deployed at each position is different, or the number of antennas in each antenna set is different, and this representation can be more flexible.

[0129] It should be noted that the antenna pattern is represented by the shape of the cuboid to indicate the terminal device and the positions where the antenna set can be arranged on the terminal device, and the antenna pattern can also be represented by any shape, such as a sphere, a cone, a cylinder, or an irregular shape, without limitation. For example, as shown in FIG. 10, the intersection points in FIG. 10 can be the deployment positions of the possible antenna set, and only four of them are shown in FIG. 10.

[0130] Optionally, M positions are arranged on the first terminal device, and the N position distributions are N combinations of different positions in the M positions, where M is an integer greater than 1.

[0131] The M positions can be positions on the first terminal device preset by the first device, and K positions are selected from the M positions to form a position distribution, and the N position distributions can be combinations of different K positions in the M positions. For example, as shown in FIG. 11, M is 8 and K is 4, and positions 1-8 on the first terminal device are preset by the first device, i.e., positions #1-#8. Positions #1-#4 are selected from the 8 positions to generate pattern 4, and positions #3-#6 are selected from the 8 positions to generate pattern 5. In this way, the N position distributions can be generated more flexibly, and the position distribution combination that meets the current demand can be generated according to the actual demand.

[0132] It can be understood that the first terminal device is a type of terminal device, and for different types of terminal devices, the value of M can be different, that is, the antenna set on different types of terminal devices can have different position distribution conditions. For example, the preset positions on the terminal device of type #1 are 8, and if the first terminal device belongs to type #1, such as a vehicle, the N position distributions of the K antenna set on the first terminal device are different position combinations selected from the 8 positions. Alternatively, the preset positions on the terminal device of type #2 are 6, and if the first terminal device belongs to type #2, such as a drone, the N position distributions of the K antenna set on the first terminal device are different position combinations selected from the 6 positions.

[0133] Method 3:

[0134] The first information indicates the position parameter, and the position parameter indicates the position of at least one antenna set in the K antenna set on the first terminal device. The first device and the second device share the content or meaning indicated by each parameter included in the position parameter in advance. It can be understood that the indication method of method 4 is applicable to the case where the distance between any two antenna sets is equal, and the distance between any two antennas in the same antenna set is equal, that is, a rectangular planar array.

[0135] As shown in FIG. 12 and FIG. 13, FIG. 12 is a position relationship between antenna sets, and FIG. 13 is a position relationship between antennas in one antenna set. The position parameters can include (M g ,N g ,L g ,M,N,P) and (d g,H ,d g,V ,d g,L ,d H ,d V ), where M g ,N g are respectively the number of antenna sets in the first direction, the second direction, and the third direction of the antenna set, and the first direction, the second direction, and the third direction are perpendicular to each other; M and N are respectively the number of antennas in the antenna set in the first direction and the second direction; P is a polarization mode, such as 1 for single polarization and 2 for dual polarization; d g,H ,d g,V ,d g,L are respectively the distance between any two antenna sets of the antenna set in the first direction, the second direction, and the third direction; d H ,d V are respectively the distance between antennas in the antenna set in the first direction and the second direction. It can be understood that the first device and the second device share the specific directions of the first direction, the second direction, and the third direction in advance, and the first direction, the second direction, and the third direction can be respectively the x-axis, the y-axis, and the z-axis in the spatial position coordinates, that is, the first device and the second device share the coordinate system in advance. For example, the position parameters can include (2, 3, 2, 2, 3, 1) and (12, 13, 14, 0.5, 0.5), indicating that there are 2 antenna sets in the first direction, and the distance between the 2 antenna sets is 12λ; there are 3 antenna sets in the second direction, and the distance between the 3 antenna sets is 13λ; there are 2 antenna sets in the third direction, and the distance between the 2 antenna sets is 14λ; the number of antennas in one antenna set in the first direction is 2, and the distance between the 2 antennas in one antenna set is 0.5λ; the number of antennas in one antenna set in the second direction is 3, and the distance between the 3 antennas in one antenna set is 0.5λ; and the polarization mode is single polarization.

[0136] In this way, the position relationship and the number of antennas indicated by the antenna pattern can be indicated by the position parameters, and the indication manner is more flexible.

[0137] Mode 4:

[0138] In another possible implementation, the position of the at least one antenna set on the first terminal device includes a spatial position coordinate of the at least one antenna set, and the first information indicates the spatial position coordinate of the at least one antenna set in the K antenna sets.

[0139] The first device and the second device share a coordinate system in advance, and the spatial position coordinates of the at least one antenna set can be coordinates with any position on the first terminal device as the origin. The spatial position coordinates can be spatial rectangular coordinates, spatial vector coordinates, etc. Taking spatial rectangular coordinates as an example, as shown in FIG. 14, the x-axis, the y-axis, and the z-axis are three mutually perpendicular number axes, and the spatial position coordinates of the antenna set #1 are (x1, y1, z1).

[0140] In addition, the position of the at least one antenna set on the first terminal device can also be two-dimensional coordinates, for example, without distinguishing the height of the deployed distributed antenna set, that is, considering that all antennas are at the same horizontal height, and only the coordinates (x, y) in FIG. 14 are used to represent the position of the at least one antenna set on the first terminal device. The spatial position coordinates are used to indicate the position of the at least one antenna set on the first terminal device, so that the indication information is more flexible and accurate.

[0141] Optionally, the spatial position coordinates of the at least one antenna set in the K antenna sets are coordinates relative to a reference position. The first information further indicates the spatial position coordinates of the reference position.

[0142] The reference position here can be any position on the first terminal device. The reference position can be taken as a reference point of the spatial position coordinates, or in other words, the reference position is taken as the origin. For example, the spatial position coordinates of the at least one antenna set can be represented in the following manner: (a distance of the at least one antenna set from the reference position in a first direction, a distance of the at least one antenna set from the reference position in a second direction, and a distance of the at least one antenna set from the reference position in a third direction), where the first direction can be the x-axis, the second direction can be the y-axis, and the third direction can be the z-axis. In this way, the reference position can be dynamically set according to actual conditions. For example, different reference positions can be set according to different morphologies of the first terminal device, and the position setting can be more flexible.

[0143] For example, the first terminal device is a vehicle, and the reference position can be the center position of the frontmost side of the vehicle (such as the center of the bumper or a certain position on the bumper). The spatial position coordinates of the at least one antenna set are coordinates relative to the center of the bumper, that is, the spatial position coordinates of the at least one antenna set are (Δx i , Δy i , Δz i ), where Δx i and Δy i indicate the horizontal relative positions of the deployment positions of each antenna set relative to the reference position, and Δz iThe vertical (height) relative position of each antenna set deployment position relative to the reference position is indicated. As shown in FIG. 15, the spatial position coordinates of antenna set #1 (Δx1, Δy1, Δz1) are (12, 13, 14), indicating that the distance of antenna set #1 in the x-axis direction relative to the reference position is 12λ, the distance of antenna set #1 in the y-axis direction relative to the reference position is 13λ, and the distance of antenna set #1 in the z-axis direction relative to the reference position is 13λ.

[0144] Optionally, the reference position is the position of any antenna set in the K antenna sets on the first terminal device. That is, the position of the antenna set deployed on the first terminal device can be taken as the reference position, so that the spatial position coordinates of the antenna set at the reference position can be (0, 0, 0), saving the calculation overhead. Alternatively, the spatial position coordinates of the antenna set at the reference position do not need to be explicitly indicated, so as to reduce the communication overhead.

[0145] Optionally, the first device sends the position information of the first terminal device to the second device. The position information can be determined according to a positioning system, such as a global navigation satellite system (GNSS), so as to facilitate the second device to locate the position of the first terminal device, and thus determine the accurate position of the at least one antenna set by using the position of the first terminal device and the position of the at least one antenna set on the first terminal device.

[0146] S702, the first device sends the first information. Correspondingly, the second device receives the first information.

[0147] In a case that the second device is a network device, such as a base station, that is, when the first device reports the first information to the network device, the first information can be transmitted through a Uu air interface radio resource control (RRC), a medium access control control element (MAC CE), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH). In a case that the second device is another terminal device, such as a second terminal device, that is, when the first device reports the first information to the other terminal device, the first information can be transmitted through a proximity communication (PC5) air interface RRC, a MAC CE, a physical sidelink control channel (PSSCCH), or a physical sidelink shared channel (PSSCH).

[0148] Optionally, the communication method can further include: the first device sending second information, and the second device receiving the second information.

[0149] The second information and the first information can be carried in the same signaling or different signaling, and are not limited. The second information indicates that the type of the first terminal device is a terminal device with a distributed antenna set. The second information can also indicate that the type of the first terminal device is a new terminal type. The second information also indicates the form of the first terminal device. The transmission mode of the second information between the first device and the second device can refer to the transmission of the first information, which will not be described here. The first device sends the type of the first terminal device to the second device, and the second device can obtain the form of the first terminal device according to the type of the first terminal device, so that the second device accurately obtains the deployment information of the distributed antenna set according to the form of the first terminal device, thereby improving the channel transmission performance under the distributed antenna.

[0150] In S703, the second device obtains the position of at least one antenna set in the K antenna sets on the first terminal device according to the first information.

[0151] Any antenna set in the K antenna sets contains at least one antenna, and K is an integer greater than 1.

[0152] The four indication manners of the first information, i.e., the manner 1, the manner 2, the manner 3 and the manner 4, correspond to different manners of obtaining the positions of the at least one antenna set on the first terminal device, which will be introduced in detail.

[0153] The manner 1:

[0154] The indication manner of the first information of the manner 1 is to indicate at least part of the positions of the K antenna sets in the M positions, and the first device and the second device share the predefined M positions. The manner 1 is further divided into two indication forms.

[0155] Optionally, if the first information indicates whether an antenna set is arranged at each of the M positions of the first terminal device and the number of antennas arranged at the positions of the M positions where the antenna sets are arranged, the second device can obtain at least one position of the M positions where the antenna set is arranged according to the first information, and the K antenna sets are located in the M positions, i.e., the position of at least one antenna set in the K antenna sets on the first terminal device can be obtained.

[0156] For example, the first information includes (1, 1, 0, 0, 0, 0, 1, 1, 2), and the second device can obtain that the antenna sets are arranged at the positions #1, #2, #7 and #8 according to the predefined positions #1 to #8 on the vehicle terminal, and two antennas are arranged at each position. For example, the positions #1 and #2 correspond to two rearview mirrors, and the positions #7 and #8 correspond to the two ends of the rear bumper (or any two positions of the rear bumper).

[0157] Optionally, if the first information indicates the number of antennas at each of the M positions of the first terminal device, the second device can obtain at least one position of the M positions where the antenna set is arranged and the number of antennas at the position according to the first information. For example, the first information includes (1, 2, 0, 4, 0, 0, 0, 0), and the second device can obtain that one antenna is arranged at the position #1, two antennas are arranged at the position #2, and four antennas are arranged at the position #4 according to the predefined positions #1 to #8 on the vehicle terminal.

[0158] The manner 2:

[0159] Optionally, the first information includes a target antenna pattern; S703 can include: the second device determines a target position distribution corresponding to the target antenna pattern according to the preconfigured N antenna patterns; the N antenna patterns correspond to N position distributions one by one, and the N position distributions are the position distributions of the K antenna sets on the first terminal device. The target antenna pattern is one of the N antenna patterns. The second device determines the position of at least one antenna set in the K antenna sets on the first terminal device according to the target position distribution.

[0160] The second device shares N antenna patterns with the first device in advance, such as the second device receives N antenna patterns from the first device. After receiving the first information, the second device can determine a unique target position distribution according to the target antenna pattern in the first information, and the target position distribution indicates the position of at least one antenna set in the K antenna sets on the first terminal device.

[0161] For example, as shown in FIG. 9, the first device and the first device share three predefined patterns, and the first information can be in the following Form 1: (pattern, number of antennas), such as the first information includes (1, 2), indicating pattern 1, and the positions #1, #2, #3, and #4 of the four antenna sets on the first terminal device in pattern 1, and each antenna set in the four antenna sets contains 2 antennas. According to the pattern 1 indicated by the first information, the second device determines a unique target position distribution, i.e. the distribution of positions #1, #2, #3, and #4 in pattern 1. Alternatively, the first information can be in the following Form 2: (pattern, position #1 antenna number, position #2 antenna number, position #3 antenna number, position #4 antenna number), such as the first information includes (1, 2, 3, 2, 2), indicating pattern 1, and the distribution of the positions of the four antenna sets on the first terminal device in pattern 1, and 2 antennas are respectively deployed at positions #1, #3, and #4, and 3 antennas are deployed at position #2. According to the pattern 1 indicated by the first information, the second device determines a unique target position distribution, i.e. the distribution of positions #1, #2, #3, and #4 in pattern 1.

[0162] Method 3:

[0163] The first information indicates a position parameter, and the position parameter represents the position of at least one antenna set in the K antenna sets on the first terminal device. The first device and the second device share the content or meaning indicated by each parameter included in the position parameter in advance.

[0164] For example, the position parameters indicated by the first information include (2, 3, 2, 2, 3, 1) and (12, 13, 14, 0.5, 0.5), and the second device obtains the distribution of the antenna set through the first information, i.e., 2 antenna sets are distributed in the first direction, and the distance between the 2 antenna sets is 12λ; 3 antenna sets are distributed in the second direction, and the distance between the 3 antenna sets is 13λ; 2 antenna sets are distributed in the third direction, and the distance between the 2 antenna sets is 14λ; the number of antennas in one antenna set in the first direction is 2, and the distance between the 2 antennas in one antenna set is 0.5λ; the number of antennas in one antenna set in the second direction is 3, and the distance between the 3 antennas in one antenna set is 0.5λ; and the polarization mode is single polarization. The first direction, the second direction, and the third direction are perpendicular to each other. Since the first device and the second device share the specific directions of the first direction, the second direction, and the third direction in advance, the second device can obtain the position relationship and the number of antennas through the position parameters.

[0165] Mode 4:

[0166] The first information indicates the spatial position coordinates of at least one antenna set in the K antenna sets.

[0167] The first device and the second device share the coordinate system in advance. The coordinate system can be predefined by the first device and shared with the second device, or the same coordinate system can be predefined for the first device and the second device according to a protocol. The second device can obtain the spatial position coordinates of at least one antenna set in the K antenna sets according to the first information. Since the first device and the second device define the same coordinate system, the second device can accurately locate the position of at least one antenna set in the K antenna sets on the first terminal device.

[0168] Optionally, the spatial position coordinates of at least one antenna set in the K antenna sets are coordinates relative to a reference position. The first information further indicates the spatial position coordinates of the reference position. After receiving the spatial position coordinates of the reference position, the second device can determine the spatial position relationship between at least one antenna set and the reference position, thereby locating the position of at least one antenna set in the K antenna sets on the first terminal device. For example, as shown in FIG. 15, the second device receives the first information indicating the spatial position coordinates (12, 13, 14) of the antenna set #1, which indicates that the distance between the antenna set #1 and the reference position in the x-axis direction is 12λ, the distance between the antenna set #1 and the reference position in the y-axis direction is 13λ, and the distance between the antenna set #1 and the reference position in the z-axis direction is 13λ.

[0169] Optionally, the second device receives the position information of the first terminal device from the first device, and the second device can locate the position of the first terminal device, so as to determine the accurate position of the at least one antenna set by using the position of the first terminal device and the position of the at least one antenna set on the first terminal device.

[0170] S704, the second device sends the third information according to the position of the at least one antenna set on the first terminal device.

[0171] In a possible implementation, S704 can include: determining the strength of the reference signal of the at least one antenna set. According to the strength of the reference signal of the at least one antenna set, a second antenna set is determined, and the third information is sent according to the position of the second antenna set on the first terminal device, wherein the second antenna set includes an antenna set whose reference signal strength is greater than a preset threshold in the at least one antenna set.

[0172] The reference signal can be a known signal provided by the first device to the second device for channel estimation or channel sounding, such as a positioning reference signal (PRS), a demodulation reference signal (DMRS), a cell-specific reference signal (CRS), etc. The strength of the reference signal of the antenna set can be the strength of the reference signal of any antenna in the antenna set, or the total strength of the reference signals of the antennas in the antenna set.

[0173] The antenna set whose reference signal strength is greater than the preset threshold in the at least one antenna set is determined as the second antenna set, that is, the reference signal strength of any antenna set in the second antenna set is greater than the preset threshold, wherein the preset threshold can be a threshold value set according to actual conditions and needs. That is, the second device can use the antennas in the antenna set with greater reference signal strength to transmit the third information, thereby improving the transmission performance.

[0174] Optionally, the second antenna set can be an antenna set with a channel quality higher than X antenna sets in the at least one antenna set, where X is an integer greater than or equal to 1, the strength of the reference signal of the antenna set is related to the channel quality of the antenna set, and the greater the strength of the reference signal of the antenna set, the higher the channel quality of the antenna set. For example, the second device selects two antenna sets with higher channel quality from the at least one antenna set, and sends the third information to the first device according to the positions of the two antenna sets on the first terminal device, or the second device selects an antenna set with the highest channel quality, and sends the third information to the first device according to the position of the antenna set with the highest channel quality on the first terminal device, that is, all the transmission power is concentrated on the antenna set with the best channel condition at all times (dynamically changes over time), thereby improving the channel measurement and estimation accuracy.

[0175] Optionally, the strength of the reference signal of the second antenna set is greater than the strength of the reference signal of an antenna set other than the second antenna set in the at least one antenna set, and the difference between the two is greater than a preset threshold. That is, among the at least one antenna set, the strength of the reference signal of the second antenna set is greater than the strength of the reference signal of the remaining antenna sets, and the difference is greater than a preset threshold. For example, when a vehicle is driving on a road, the antenna set of the front bumper is blocked by other vehicles or obstacles, while the antenna set of the rear bumper is not blocked, at this time, the difference between the strength of the reference signal of the antenna set of the front bumper and the antenna set of the rear bumper is greater than a preset threshold, indicating that the channel condition of the antenna set of the rear bumper is better. As can be seen, the distributed antenna set in the embodiment of the present application can more likely ensure that at least one antenna set is not blocked by an obstacle, thereby improving the channel transmission performance under the distributed antenna set.

[0176] The first terminal device in the embodiment of the present application can be a new terminal type terminal device, and the distance between the distributed antenna sets on the first terminal device is greater than the distance between the antennas in the existing antenna array, so compared with a uniform linear array (ULA), a uniform circular array (UCA), or a uniform rectangular array (URA) antenna system, the spatial correlation between the antenna sets can be reduced. The lower the spatial correlation between the antenna sets, the higher the channel capacity, and the correlation between the transmit and receive antennas is reflected in the following channel capacity formula:

[0177] wherein SNR is the signal-to-noise ratio, M is the number of transmit antennas, N is the number of receive antennas, R R and R T are the correlation matrices of the receive and transmit antennas, respectively, and H is the channel matrix.

[0178] Therefore, the spatial correlation between different antenna sets is low, the channel capacity is high, and the channel fading characteristics between different antenna sets are different in the embodiments of the present application. Therefore, the first device concentrates all the transmission power on the antenna set with the highest channel quality or the X antenna sets with higher channel quality at all times (dynamically changes over time), and the diversity gain transmission corresponding to the distributed antenna set can be better obtained. For example, as shown in FIG. 16, for each distributed antenna set, the base station can use different beams for transmission. The transmission mode for obtaining diversity gain is:

[0179] where h i is the channel coefficient of the i th antenna set.‖h i ‖ 2 The channel quality of the i th antenna set can be characterized, that is, the transmission power is concentrated on the antenna set with the highest channel quality, and the diversity gain transmission corresponding to the distributed antenna set can be better obtained. The more diversity gain obtained, the higher the reliability of transmission. Therefore, the reliability of transmission can be improved.

[0180] Optionally, the at least one antenna set includes a third antenna set; the communication method can further include: the second device measures the reference signal of the third antenna set to obtain channel information of the third antenna set, and corrects the channel information of the third antenna set based on the channel information of the third antenna set and the position of the third antenna set on the first terminal device to obtain corrected channel information of the third antenna set.

[0181] where the third antenna set can be any antenna set in the at least one antenna set, and the channel information of any antenna set can be corrected by the channel information of the antenna set and the position of the antenna set on the first terminal device.

[0182] Optionally, the second device corrects the channel information of the third antenna set based on the channel information of the third antenna set, the position of the third antenna set on the first terminal device, and the channel information of any antenna set in the at least one antenna set and the position of the antenna set on the first terminal device to obtain corrected channel information of the third antenna set.

[0183] It can be understood that the second device can correct the channel information of the third antenna set jointly with the channel information and position of any antenna set in the at least one antenna set, or can jointly correct the channel information and position of all antenna sets in the at least one antenna set to obtain a joint correction result.

[0184] For example, each two of the at least one antenna set can establish a spatial relationship, and based on the multiple sets of spatial relationships, the second device can obtain a more accurate channel model. The spatial relationship can be established according to the distance between the antenna set and the second device and the distance between the antenna sets. The at least one distributed antenna set can establish a spatial relationship in the manner shown in FIG. 17. For example, as shown in FIG. 17, the first terminal device is distributed with antenna set #1 and antenna set #2, the distance between the antenna set #1 and the antenna set #2 is X1, the distance between the antenna set #1 and the base station is X2, the distance between the antenna set #2 and the base station is X3, and the distances X1, X2 and X3 can form a unique triangle, wherein X2 can be obtained by measuring the reference signal sent by the antenna set #1, X3 can be obtained by measuring the reference signal sent by the antenna set #2, and X1 can be determined by the first information. When the reference signal measurement result (channel information) of the antenna set #1 is wrong, the base station can correct the reference signal measurement result of the antenna set #1 based on the reference signal measurement result of the antenna set #2 and the position of the antenna set #2 on the first terminal device, and obtain the corrected channel information of the antenna set #1. In this way, on the basis of realizing diversity gain transmission, the transmission performance can be further improved according to the deployment position information of the antenna set on the first terminal device.

[0185] The specific implementation principles of S703-S704 are similar to those of S701-S702, and can be understood with reference to the foregoing.

[0186] In summary, by defining the first terminal device with the distributed antenna set and indicating the position of at least one antenna set in the K antenna sets on the first terminal device by the first information, the spatial position information of the antenna set can be indicated to other terminal devices or network devices, so that other terminal devices or network devices can select a corresponding transmission mode based on the spatial position information of the distributed antenna set, and perform more effective information transmission. In addition, other terminal devices or network devices can fully utilize the diversity gain of the distributed antenna set, improve the channel measurement and estimation accuracy, and improve the transmission performance of the terminal device with the distributed antenna set.

[0187] The method provided by the embodiments of the present application is described in detail above in combination with FIGS. 7-17. The communication device for performing the communication method provided by the embodiments of the present application is described in detail below in combination with FIGS. 18-19.

[0188] FIG. 18 is a structural schematic diagram of a communication device according to an embodiment of the present application. For example, as shown in FIG. 18, the communication device 1800 includes a transceiver module 1801 and a processing module 1802. For the convenience of description, FIG. 18 only shows the main components of the communication device.

[0189] The transceiving module 1801 is configured to perform the transceiving functions of the method shown in FIG. 7. The processing module 1802 is configured to perform the functions of the method shown in FIG. 7 other than the transceiving functions.

[0190] Optionally, the transceiving module 1801 can include a sending module (not shown in FIG. 18) and a receiving module (not shown in FIG. 18). The sending module is configured to perform the sending functions of the communication apparatus 1800. The receiving module is configured to perform the receiving functions of the communication apparatus 1800.

[0191] Optionally, the communication apparatus 1800 can further include a storage module (not shown in FIG. 18) storing programs or instructions. When the processing module 1802 executes the programs or instructions, the communication apparatus 1800 can perform the functions of the terminal or network device in the method shown in FIG. 7.

[0192] It can be understood that the communication apparatus 1800 can be a terminal or a network device, or a chip (system) or other components or assemblies that can be arranged in a terminal or a network device, or an apparatus containing a terminal or a network device, and the present application does not limit the same.

[0193] In addition, the technical effects of the communication apparatus 1800 can refer to the technical effects of the communication method shown in FIG. 7, which will not be repeated here.

[0194] FIG. 19 is a structural schematic diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus can be a terminal or a chip (system) or other components or assemblies that can be arranged in a terminal. As shown in FIG. 19, the communication apparatus 1900 can include a processor 1901. Optionally, the communication apparatus 1900 can further include a memory 1902 and / or a transceiver 1903. The processor 1901 is coupled with the memory 1902 and / or the transceiver 1903, which can be connected through a communication bus, can be connected through an intra-chip interface, or can be connected through other communication lines. Optionally, the memory 1902 can be integrated with the processor 1901.

[0195] The components of the communication apparatus 1900 will be described in detail below in combination with FIG. 19.

[0196] The processor 1901 is the control center of the communication device 1900, which can be one processor or a combination of multiple processing elements. For example, the processor 1901 is one or more central processing units (CPUs), application specific integrated circuits (ASICs), or one or more integrated circuits configured to perform the functions of the embodiments of the present application, such as one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs).

[0197] Optionally, the processor 1901 can execute various functions of the communication device 1900 by running or executing software programs stored in the memory 1902 and calling data stored in the memory 1902, such as the communication method shown in FIG. 7.

[0198] In a specific implementation, as an embodiment, the processor 1901 can include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 19.

[0199] In a specific implementation, as an embodiment, the communication device 1900 can also include multiple processors, such as the processor 1901 and the processor 1904 shown in FIG. 19. Each of these processors can be a single-CPU or a multi-CPU. The processor here can refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).

[0200] The memory 1902 is used to store software programs for executing the schemes of the present application, and is controlled by the processor 1901 to execute, and the specific implementation can refer to the above-mentioned method embodiments, which will not be repeated here.

[0201] Optionally, the memory 1902 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory 1902 can be integrated with the processor 1901 or exist independently and be coupled to the processor 1901 through the interface circuit (not shown in FIG. 19) of the communication apparatus 1900, and the embodiments of the present application are not limited in this regard.

[0202] The transceiver 1903 is configured to communicate with other communication apparatuses. For example, the communication apparatus 1900 is a terminal, and the transceiver 1903 can be configured to communicate with a network device or another terminal. For another example, the communication apparatus 1900 is a network device, and the transceiver 1903 can be configured to communicate with a terminal or another network device.

[0203] Optionally, the transceiver 1903 can include a receiver and a transmitter (not shown separately in FIG. 19). The receiver is configured to implement the receiving function, and the transmitter is configured to implement the transmitting function.

[0204] Optionally, the transceiver 1903 can be integrated with the processor 1901 or exist independently and be coupled to the processor 1901 through the interface circuit (not shown in FIG. 19) of the communication apparatus 1900, and the embodiments of the present application are not limited in this regard.

[0205] It can be understood that the structure of the communication apparatus 1900 shown in FIG. 19 does not constitute a limitation on the communication apparatus, and the actual communication apparatus can include more or fewer components than those shown, or combine certain components, or different component arrangements.

[0206] In addition, the technical effects of the communication apparatus 1900 can refer to the technical effects of the methods described in the above method embodiments, which will not be described here.

[0207] It should be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0208] It should also be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an EEPROM or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM) and direct rambus RAM (DR RAM).

[0209] The above-described embodiments can be implemented in part or in whole through software, hardware (e.g., circuitry), firmware, or any combination thereof. When implemented in software, the above-described embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When loaded and executed by a computer, the computer instructions or computer programs can produce the processes or functions described above in accordance with the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, such as from a website site, a computer, a server, or a data center to another website site, a computer, a server, or a data center through a wired (e.g., infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium or a collection of medium accessible by a computer or a data storage device such as a server, a data center, etc. containing one or more available medium. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0210] It should be understood that the term "and / or" in this document is merely used to describe an associated relationship between associated objects, and can represent three relationships, for example, A and / or B can represent three cases of A alone, A and B together, and B alone, where A and B can be singular or plural. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects, but can also represent an "and / or" relationship. The specific meaning can be understood according to the context before and after.

[0211] In this application, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of the items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0212] It should be understood that in various embodiments of the present application, the size of the sequence number of the above-described processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0213] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0214] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0215] In several embodiments provided in the present 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 the units is only a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0216] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. they can be located in one place or distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0217] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0218] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the essential part of the technical solutions or the part of the technical solutions that make contributions to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes the above-mentioned various possible memories.

Claims

1. A communication method characterized by comprising: The method comprises: determining first information, the first information indicating a position of at least one antenna set in a K antenna set on a first terminal device, the K antenna set being distributed on the first terminal device, any antenna set in the K antenna set containing at least one antenna, K being a positive integer greater than 1; sending the first information.

2. The method of claim 1, wherein, The distance between any two antenna sets in the K antenna set is greater than or equal to a preset distance threshold.

3. The method according to claim 1 or 2, characterized in that, The method further comprises: sending second information, the second information indicating that the first terminal device is a terminal device with distributed antenna sets.

4. The method according to any one of claims 1 to 3, characterized in that, The first antenna set in the K antenna set contains more than one antenna, and the distance between any two antennas in the first antenna set is smaller than the distance between any two antenna sets.

5. The method according to any one of claims 1 to 4, characterized in that, The first terminal device is provided with M positions, and the K antenna set is located in at least part of the M positions, M being an integer greater than 1, and K being less than or equal to M.

6. The method of claim 5, wherein, The first information indicates whether an antenna set is provided at each position in the M positions, and the number of antennas provided at the position with an antenna set in the M positions.

7. The method of claim 5, wherein, The first information indicates the number of antennas at each position in the M positions.

8. The method of claim 1, wherein, The K antenna set has N position distributions on the first terminal device, the N position distributions corresponding to N antenna patterns one by one, the first information including a target antenna pattern in the N antenna patterns, N being an integer greater than 1.

9. The method of claim 8, wherein, The first terminal device is provided with M positions, and the N position distributions are N combinations of different positions in the M positions, M being an integer greater than 1.

10. The method of claim 1, wherein, The position of the at least one antenna set on the first terminal device includes the spatial position coordinates of the at least one antenna set, and the first information indicates the spatial position coordinates of the at least one antenna set in the K antenna set.

11. The method of claim 10, wherein, The spatial position coordinates of the at least one antenna set in the K antenna set are coordinates relative to a reference position.

12. The method of claim 11, wherein, The first information further indicates the spatial position coordinates of the reference position.

13. The method according to claim 11 or 12, characterized in that, The reference position is the position of any antenna set in the K antenna set on the first terminal device.

14. A communication method, comprising: The method comprises: receiving first information; According to the first information, the position of at least one antenna set in a K antenna set on a first terminal device is obtained, any antenna set in the K antenna set containing at least one antenna, K being a positive integer greater than 1; According to the position of the at least one antenna set on the first terminal device, third information is sent.

15. The method of claim 14, wherein, According to the position of the at least one antenna set on the first terminal device, third information is sent, comprising: determining the strength of the reference signal of the at least one antenna set; According to the strength of the reference signal of the at least one antenna set, a second antenna set is determined, the second antenna set including the antenna set in the at least one antenna set whose reference signal strength is greater than a preset threshold; According to the position of the second antenna set on the first terminal device, third information is sent.

16. The method according to claim 14 or 15, characterized in that The at least one antenna set comprises a third antenna set; the method further comprises: measuring a reference signal of the third antenna set to obtain channel information of the third antenna set; correcting the channel information of the third antenna set based on the channel information of the third antenna set and a position of the third antenna set on the first terminal device to obtain corrected channel information of the third antenna set.

17. The method according to any one of claims 14 to 16, characterized in that, The method further comprises: receiving second information, the second information indicating that the first terminal device is a terminal device with a distributed antenna set.

18. The method of claim 17, wherein, The first information indicates whether an antenna set is arranged at each of M positions of the first terminal device and a number of antennas arranged at the positions of the M positions of the first terminal device.

19. The method of claim 17, wherein, The first information indicates a number of antennas at each of the M positions of the first terminal device.

20. The method of claim 14, wherein, The first information comprises a target antenna pattern; and obtaining a position of at least one antenna set of K antenna sets on the first terminal device according to the first information comprises: determining a target position distribution corresponding to the target antenna pattern according to N pre-configured antenna patterns, the N antenna patterns correspond to N position distributions one by one, the N position distributions are position distributions of the K antenna sets on the first terminal device, and the target antenna pattern is one of the N antenna patterns; determining the position of at least one antenna set of the K antenna sets on the first terminal device according to the target position distribution.

21. The method of claim 14, wherein, The position of the at least one antenna set on the first terminal device comprises spatial position coordinates of the at least one antenna set, and the first information indicates the spatial position coordinates of at least one antenna set of the K antenna sets.

22. The method of claim 21, wherein, The spatial position coordinates of at least one antenna set of the K antenna sets are coordinates relative to a reference position.

23. The method of claim 22, wherein, The first information further indicates spatial position coordinates of the reference position.

24. The method of claim 22 or 23, wherein, The reference position is a position of any antenna set of the K antenna sets on the first terminal device.

25. A communications device, characterized by A device for implementing the method of any one of claims 1-13.

26. The communication apparatus according to claim 25, wherein The communication device comprises the first terminal device or a chip in the first terminal device.

27. The communication apparatus according to claim 26, wherein The first terminal device comprises a first vehicle.

28. A communications device, characterized by A device for implementing the method of any one of claims 14-24.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium comprises a computer program or instructions, which, when executed, cause the method of any one of claims 1-13 to be implemented, or cause the method of any one of claims 14-24 to be implemented.

30. A computer program product, characterised in that, The computer program product comprises a computer program or instructions, which, when executed, cause the method of any one of claims 1-13 to be executed, or cause the method of any one of claims 14-24 to be executed.

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