Communication method and communication device

Abstract

Provided is a communication method, comprising: a network device sending a plurality of signals to a terminal device, the terminal device reporting measurement information to the network device after measuring the plurality of signals, the measurement information comprising first path time delay information of at least one signal in the plurality of signals, or an identifier of a first signal, the first signal is the signal with the minimum first path time delay in the plurality of signals. Therefore, the network equipment can determine whether the LOS path exists between the terminal equipment and the network equipment or not based on the measurement information fed back by the terminal equipment, so that the network equipment can judge whether the communication performance with the terminal equipment should be enhanced by using the sensing information of the terminal equipment or not.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and in particular, to a communication method and a communication device. Background Art

[0002] Communication perception integration is a key technology in wireless communication networks, aiming to integrate the two functions of wireless communication and perception in the same system, and use various propagation characteristics of wireless signals to achieve perception functions such as positioning, detection, imaging, and recognition of targets, so as to obtain information about the surrounding physical environment, explore communication capabilities, and enhance the user experience.

[0003] In current communication perception integration solutions, the network device cannot determine the specific situation of the signal transmission path between a certain terminal device and the network device, resulting in the network device being unable to determine whether the perceived information can be used to enhance the communication performance with the terminal device. Summary of the Invention

[0004] The present application provides a communication method, so that the network device can determine the situation of the communication signal transmission path with the terminal device. For example, the network device determines whether there is a line of sight (LOS) path between the network device and the terminal device, so as to determine whether the perceived information can be used to enhance the communication performance with the terminal device.

[0005] In a first aspect, a communication method is provided. This method can be executed by a terminal device, or by a chip or a circuit, etc., and the present application does not make any limitations in this regard.

[0006] The communication method includes: receiving multiple signals; sending measurement information, where the measurement information includes information on the first path delay of at least one of the multiple signals, or an identifier of a first signal, and the first signal is the signal with the smallest first path delay among the multiple signals.

[0007] Based on the above technical solution, taking the execution entity as the terminal device as an example, the terminal device receives multiple signals, measures the multiple signals, and then reports information including the identifier of the first signal to the network device. The first signal is the signal with the smallest first path delay among the multiple signals. Thus, the network device can determine the specific situation of the signal transmission path between the terminal device and the network device (for example, determine whether there is an LOS path between the terminal device and the network device) based on the identifier of the first signal, so that the network device can determine whether the perceived information of the terminal device can be used to enhance the communication performance with the terminal device; or,

[0008] The terminal device receives multiple signals. After measuring these multiple signals, it reports to the network device information including the first-path delay of at least one signal. Thus, the network device can determine the specific situation of the signal transmission path between the terminal device and the network device based on the information of the first-path delay of at least one signal fed back by the terminal device (for example, determine whether there is a LOS path between the terminal device and the network device), so that the network device can determine whether the communication performance with the terminal device can be enhanced using the perception information of the terminal device.

[0009] In combination with the first aspect, in some implementation manners of the first aspect, the measurement information includes the information of the first-path delay of at least one signal among the multiple signals and the identifier of the at least one signal.

[0010] Based on the above technical solution, the terminal device reports the information of the first-path delay of at least one signal among the multiple signals and the identifier of the at least one signal. The network device can determine the specific situation of the signal transmission path between the terminal device and the network device by combining the information of the first-path delay of at least one signal reported by the terminal device with its own prior information (for example, determine whether there is a LOS path between the terminal device and the network device), so that the network device can determine whether the communication performance with the terminal device can be enhanced using the perception information of the terminal device.

[0011] In combination with the first aspect, in some implementation manners of the first aspect, the measurement information further includes the information of the first-path power of at least one signal among the multiple signals.

[0012] Based on the above technical solution, the terminal device further reports the information of the first-path power of at least one signal among the multiple signals in the measurement information, so that when the network device determines the specific situation of the signal transmission path between the terminal device and the network device, it can make a judgment based on more auxiliary information, improving the accuracy of the judgment.

[0013] In combination with the first aspect, in some implementation manners of the first aspect, the measurement information includes the identifier of the first signal, and the information of the first-path delay and / or the information of the first-path power of the first signal.

[0014] Based on the above technical solution, the terminal device reports the information of the first-path delay of the first signal and / or the information of the first-path power corresponding to the first signal in the measurement information, so that when the network device determines the specific situation of the signal transmission path between the terminal device and the network device, it can make a judgment based on more auxiliary information, improving the accuracy of the judgment.

[0015] In combination with the first aspect, in some implementation manners of the first aspect, the information of the first-path delay indicates one of N first-path delays, where N is an integer greater than 1.

[0016] Based on the above technical solution, the terminal device can perform quantization feedback on continuous delay values through the information of the first-path delay, which can reduce the first-path delay overhead of the feedback signal of the terminal device to a certain extent.

[0017] Combined with the first aspect, in some implementation manners of the first aspect, the N types of first-path delays include a first first-path delay, and the first first-path delay is a first-path delay less than or equal to 0.

[0018] The terminal device can perform downlink synchronization by receiving multiple synchronization signals (SSB) and PBCH blocks (PBCH block) sent by the network device in different beam directions. For example, the terminal device will perform downlink synchronization with the SSB with the strongest received power among multiple SSBs, and the first-path delay calculated based on the SSB with the strongest received power is not necessarily the smallest. Since the first-path delay calculated based on the SSB with the strongest received power is 0, therefore, based on the above technical solution, the N types of first-path delays must include a first-path delay less than or equal to 0, that is, the first first-path delay.

[0019] Combined with the first aspect, in some implementation manners of the first aspect, the information of the first-path power indicates one of Q types of first-path powers, and Q is an integer greater than 1.

[0020] Based on the above technical solution, the terminal device can perform quantization feedback on continuous power values through the information of the first-path power, which can reduce the first-path power overhead of the feedback signal of the terminal device to a certain extent.

[0021] Combined with the first aspect, in some implementation manners of the first aspect, before sending the measurement information, the method further includes: determining the first-path delay and / or the first-path power of each of the multiple signals.

[0022] Combined with the first aspect, in some implementation manners of the first aspect, the multiple signals include the first signal and the second signal, and the first signal and the second signal correspond to different beam directions.

[0023] Combined with the first aspect, in some implementation manners of the first aspect, the identifier of the first signal may be the identifier of the beam corresponding to the first signal and / or the identifier of the resource occupied by the first signal.

[0024] Based on the above technical solution, the identifier of a certain signal may be the identifier of the beam corresponding to the signal, or may also be the identifier of the resource occupied by the signal. This is not limited in this technical solution, which improves the flexibility of the solution.

[0025] In combination with the first aspect, in some implementations of the first aspect, the measurement information is used to determine whether the sensing information is used to assist communication.

[0026] In a second aspect, a communication method is provided. This method can be executed by a network device, or by a chip, circuit, etc. This application does not make any limitations in this regard.

[0027] The communication method includes: sending a plurality of signals; receiving measurement information, where the measurement information includes information on the first-path delay of at least one of the plurality of signals, or an identifier of a first signal, and the first signal is the signal with the smallest first-path delay among the plurality of signals.

[0028] In combination with the second aspect, in some implementations of the second aspect, the method further includes: determining whether there is a LOS path based on the measurement information.

[0029] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving a random access response feedback, where the random access response feedback includes an index of a synchronization signal block SSB; the determining whether there is a LOS path based on the measurement information includes: determining whether there is a LOS path based on the identifier of the first signal and the index of the SSB.

[0030] In combination with the second aspect, in some implementations of the second aspect, the method further includes: judging the accuracy of sensing based on the measurement information.

[0031] The technical effects of the method shown in the above second aspect and its possible designs can be referred to the technical effects in the first aspect and its possible designs.

[0032] In addition, the descriptions related to the measurement information in the second aspect can refer to the descriptions of the measurement information in the first aspect, which will not be elaborated here.

[0033] In a third aspect, a communication device is provided. The communication device is used to execute the above first aspect and any of its implementation manners. Specifically, the communication device includes a processor and a memory, and the memory is used to store a computer program; the processor is used to call and run the computer program from the memory, so that the communication device executes the above first aspect and any of its implementation manners.

[0034] In one implementation manner, the communication device is a terminal device. When the communication device is a terminal device, the transceiver unit can be a transceiver, or an input / output interface. The processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0035] In another implementation, the communication device may be a chip, a chip system, or a circuit in a terminal device. At this time, the transceiver unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip, the chip system, or the circuit; the processing unit may be at least one processor, a processing circuit, or a logic circuit, etc.

[0036] Fourthly, a communication device is provided. The communication device is used to execute the second aspect and any of its implementation manners. Specifically, the communication device includes a processor and a memory, and the memory is used to store a computer program; the processor is used to call and run the computer program from the memory, so that the network device executes the second aspect and any of its implementation manners.

[0037] In one implementation, the communication device is a network device. When the communication device is a network device, the transceiver unit may be a transceiver, or an input / output interface. The processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0038] In another implementation, the communication device may be a chip, a chip system, or a circuit in a network device. At this time, the transceiver unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or a related circuit on the chip, the chip system, or the circuit; the processing unit may be at least one processor, a processing circuit, or a logic circuit, etc.

[0039] Fifthly, a communication device is provided for implementing the method shown in the first aspect. The device includes: a transceiver unit and a processing unit, where the transceiver unit is used to receive and transmit information, and the processing unit is used to perform internal processing actions.

[0040] Specifically, the transceiver unit is used to receive multiple signals. The transceiver unit is further used to send measurement information, and the measurement information includes information about the first-path delay of at least one of the multiple signals, or an identifier of a first signal, where the first signal is the signal with the smallest first-path delay among the multiple signals.

[0041] Combined with the fifth aspect, in some implementation manners of the fifth aspect, the processing unit is used to determine the first-path delay and / or the first-path power of each signal among the multiple signals.

[0042] The technical effects of the method shown in the fifth aspect and its possible designs above can be referred to the technical effects in the first aspect and its possible designs.

[0043] In addition, the description related to the measurement information in the fifth aspect can refer to the description of the measurement information in the first aspect, which will not be elaborated here.

[0044] In a sixth aspect, a communication device is provided for implementing the method shown in the above second aspect. The device includes a transceiver unit and a processing unit. The transceiver unit is configured to transmit and receive information, and the processing unit is configured to perform internal processing operations.

[0045] Specifically, the transceiver unit is configured to transmit multiple signals. The transceiver unit is further configured to receive measurement information, where the measurement information includes information on the first-path delay of at least one of the multiple signals, or an identifier of a first signal, and the first signal is the signal with the smallest first-path delay among the multiple signals.

[0046] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the processing unit is configured to determine whether there is a LOS path according to the measurement information.

[0047] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to receive a random access response feedback, and the random access response feedback includes an index of a synchronization signal block (SSB). The processing unit determining whether there is a LOS path according to the measurement information includes: the processing unit determining whether there is a LOS path according to the identifier of the first signal and the index of the SSB.

[0048] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the processing unit is further configured to judge the accuracy of sensing according to the measurement information.

[0049] For the technical effects of the method shown in the above sixth aspect and its possible designs, reference may be made to the technical effects in the first aspect and its possible designs.

[0050] In addition, for the description related to the measurement information in the sixth aspect, reference may be made to the description of the measurement information in the first aspect, which will not be elaborated here.

[0051] In a seventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is run, the method of any one of the implementation manners of the above first aspect and second aspect is executed.

[0052] In an eighth aspect, a computer program product including instructions is provided. When the computer program product is run, the method provided by any one of the implementation manners of the above first aspect and second aspect is executed.

[0053] In a ninth aspect, a chip or a chip system is provided. The chip includes a processor and a communication interface, and the processor reads instructions through the communication interface and executes the method provided by any one of the implementation manners of the above first aspect and second aspect.

[0054] Optionally, as an implementation, the chip further includes a memory that stores a computer program or instructions. The processor is configured to execute the computer program or instructions stored on the memory. When the computer program or instructions are executed, the processor is configured to execute the method provided by any one of the implementations in the first to fourth aspects above.

[0055] In a tenth aspect, a communication system is provided, including the communication device in the third aspect and the communication device in the fourth aspect. Description of the Drawings

[0056] Figure 1 It is a schematic diagram of a communication system applicable to this application.

[0057] Figure 2 Among them, (a) to (f) are schematic diagrams of the sensing mode.

[0058] Figure 3 It is a schematic diagram of communication and sensing integration.

[0059] Figure 4 It is a schematic flowchart of the communication method provided by the embodiment of this application.

[0060] Figure 5 It is a schematic diagram of multiple first signals provided by the embodiment of this application.

[0061] Figure 6 It is a schematic diagram of the channel impulse response provided by the embodiment of this application.

[0062] Figure 7 It is a schematic flowchart of another communication method provided by the embodiment of this application.

[0063] Figure 8 It is a schematic block diagram of the communication device provided by the embodiment of this application.

[0064] Figure 9 It is a schematic diagram of another communication device provided by the embodiment of this application.

[0065] Figure 10 It is a schematic diagram of a chip system provided by the embodiment of this application. Detailed Embodiments

[0066] For ease of understanding the embodiments of this application, the following points are explained.

[0067] First, in this application, "for indicating" may include for direct indication and for indirect indication. When describing that a certain indication information is for indicating A, it may include that the indication information directly indicates A or indirectly indicates A, rather than meaning that A must be included in the indication information.

[0068] If the information indicated by the indication information is called the information to be indicated, then in the specific implementation process, there are many ways to indicate the information to be indicated. The information to be indicated can be sent as a whole, or can be divided into multiple sub-information and sent separately, and the sending periods and / or sending opportunities of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending periods and / or sending opportunities of these sub-information can be predefined, for example, predefined according to the protocol, or can be configured by the transmitting device by sending configuration information to the receiving device. Among them, the configuration information can be, but is not limited to, one or a combination of at least two of radio resource control (RRC) signaling, media access control (MAC) layer signaling, and physical layer signaling. Among them, the MAC layer signaling includes, for example, MAC control element (CE); the physical layer signaling includes, for example, downlink control information (DCI).

[0069] Second, "at least one" shown in this application means one or more, and "a plurality" means two or more. In addition, in the embodiments of this application, "first", "second", and various numerical numbers (for example, "#1", "#2", etc.) are only for convenience of description and are not used to limit the scope of the embodiments of this application. The magnitudes of the sequence numbers of the following processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of this application. It should be understood that the objects described in this way can be interchanged under appropriate circumstances so as to be able to describe the solutions other than the embodiments of this application. In addition, in the embodiments of this application, words such as "S410" and "S420" are only identifiers made for convenience of description and do not limit the order of execution steps.

[0070] Third, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific way.

[0071] Fourth, the "saving" involved in the embodiments of the present application may refer to saving in one or more memories. The one or more memories may be separately provided, or may be integrated in an encoder, a decoder, a processor, or a communication device. The one or more memories may also have a part separately provided and a part integrated in the decoder, the processor, or the communication device. The type of the memory may be any form of storage medium, and the present application does not limit this.

[0072] Fifth, the "protocol" involved in the embodiments of the present application may refer to standard protocols in the communication field. For example, it may include LTE protocols, NR protocols, and related protocols applied to future communication systems. The present application does not limit this.

[0073] Sixth, in the embodiments of the present application, the expressions "in... cases", "when...", and "if..." may sometimes be used interchangeably. It should be noted that when their differences are not emphasized, the meanings they express are the same.

[0074] Seventh, in the embodiments of the present application, each term and English abbreviation, such as Radio Resource Control (RRC), etc., are exemplary examples given for convenience of description and should not impose any limitation on the present application. The present application does not exclude the possibility of defining other terms in existing or future protocols that can achieve the same or similar functions.

[0075] Eighth, the term "and / or" in this document is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0076] Next, the technical solutions in the embodiments of the present application will be specifically described with reference to the accompanying drawings.

[0077] The technical solutions of the embodiments of the present application can be applied to various communication systems. For example: the 5th generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided by the present application can also be applied to future communication systems, such as the 6th generation mobile communication system. The technical solutions of the embodiments of the present application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and the Internet of Things (IoT) communication system or other communication systems.

[0078] To facilitate the understanding of the embodiments of the present application, exemplarily, first, in combination with Figure 1 to introduce the communication systems applicable to the present application.

[0079] The terminal equipment in the embodiments of the present application may refer to an access terminal, user unit, user station, mobile station, mobile unit, relay station, remote station, remote terminal, mobile device, user terminal, user equipment (UE), terminal, wireless communication device, user agent or user device. The terminal equipment may also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, in-vehicle equipment, wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), or a terminal device in a future vehicle-to-everything network, etc. The embodiments of the present application do not limit this.

[0080] Exemplarily, in the embodiments of the present application, the wearable device can also be referred to as a wearable intelligent device, which is a general term for devices developed by applying wearable technologies to the intelligent design of daily wear. Such as glasses, gloves, watches, clothing, shoes, etc. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions that can achieve complete or partial functions without relying on a smart phone. For example: smart watches or smart glasses, etc. In addition, it can also be a portable device that only focuses on a certain type of application function and needs to cooperate with other devices such as smart phones. Such as various smart bracelets and smart jewelry for physical sign monitoring.

[0081] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an IoT system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technologies, so as to realize an intelligent network of human-machine interconnection and object-object interconnection. In the embodiments of the present application, IoT technology can achieve massive connection, deep coverage, and power saving of the terminal through, for example, narrow band (NB) technology.

[0082] In addition, in the embodiments of the present application, the terminal device can also include sensors. The main functions include collecting data (for some terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0083] The network device in the embodiments of this application is a communication device with wireless transceiver functions. The network device may be a device that provides wireless communication functions for terminal devices in a radio access network (RAN), referred to as a RAN device. This device includes but is not limited to: base station, evolved Node B (eNB), radio network controller (RNC), Node B (NB), home evolved Node B (HeNB, or home Node B, HNB), baseband unit (BBU), access point (AP) in a wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc. It may also be a 5G system, such as a next generation Node B (gNB) in an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or, it may also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.

[0084] In some deployments, a network device may include a centralized unit (CU), a DU, and a radio unit (RU). Among them, the CU may include a CU control plane (CP) and a CU user plane (UP), and the RU may be the combined processing of some physical layer processing functions of a BBU and a remote radio unit (RRU). In different systems, the CU (or CU-CP and CU-UP), DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In an ORAN system, the CU may also be referred to as an O-CU (open CU), the DU may also be referred to as an O-DU, the CU-CP may also be referred to as an O-CU-CP, the CU-UP may also be referred to as an O-CU-UP, and the RU may also be referred to as an O-RU. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0085] The network device and the terminal device may be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they may also be deployed on water; they may also be deployed on airplanes, balloons, and satellites in the air. The scenarios where the network device and the terminal device are located are not limited in the embodiments of this application.

[0086] In the embodiments of this application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement service processing through a process. For example, operating system, operating system, operating system, operating system or operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software.

[0087] In addition, various aspects or features of the present application can be implemented as a method, an apparatus, or an article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media include, but are not limited to, magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0088] To facilitate the understanding of the embodiments of the present application, first, a communication system shown in Figure 1 will be used as an example to detail the communication system applicable to the embodiments of the present application. As shown in Figure 1 , the communication system 100 may include at least one network device 101 and at least one terminal device 102 to 107. Among them, the terminal devices 102 to 107 may be mobile or fixed. One or more of the network device 101 and the terminal devices 102 to 107 may communicate via a wireless link. Each network device may provide communication coverage for a specific geographical area and may communicate with the terminal devices located within that coverage area.

[0089] Optionally, the terminal devices may communicate directly with each other. For example, direct communication between the terminal devices may be achieved using device-to-device (D2D) technology, etc. As shown in Figure 1 , direct communication may be achieved between the terminal devices 105 and 106, and between the terminal devices 105 and 107 using D2D technology. The terminal device 106 and the terminal device 107 may communicate with the terminal device 105 separately or simultaneously.

[0090] The terminal devices 105 to 107 may also communicate with the network device 101 respectively. For example, they may communicate directly with the network device 101. As shown in the figure, the terminal devices 105 and 106 may communicate directly with the network device 101. They may also communicate indirectly with the network device 101. For example, as shown in Figure 1 , the terminal device 107 may communicate with the network device 101 via the terminal device 105.

[0091] Each communication device can be configured with multiple antennas. For each communication device in communication system 100, the multiple configured antennas can include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, the communication devices in communication system 100 can communicate with each other through multi-antenna technology.

[0092] The interface between the network device and the terminal device can be the Uu interface (or also referred to as the air interface). Of course, in future communications, the names of these interfaces may remain unchanged, or they may be replaced with other names, which is not limited in this application. Exemplarily, the communication between the network device and the terminal device follows a certain protocol layer structure. Network layering is to perform tasks such as data transmission, forwarding, packaging or unpacking, and loading or extracting control information of network nodes (such as network devices and terminal devices) by different hardware and software modules respectively. This can make the complex problem of mutual communication and network interconnection relatively simple.

[0093] It should be understood that Figure 1 For the sake of easy understanding, it is a simplified schematic diagram for illustration. Communication system 100 may also include other network devices or other terminal devices ( Figure 1 not shown). For example, communication system 100 may also include core network devices. On the one hand, the access network device provides a wireless access connection for the terminal device and can send data to the terminal device or receive data sent by the terminal device; on the other hand, the access network device is also connected to the core network device and can forward the data received from the terminal device to the core network or receive the data that needs to be sent to the terminal device from the core network.

[0094] Exemplarily, communication system 100 may also include an application function (AF) network element, which is a control plane network function provided by the operator network for providing application layer information; communication system 100 may also include a session management function (SMF) network element, which is a control plane network function provided by the operator network. In the embodiments of this application, when communication system 100 includes an AF network element and an SMF network element, the AF can send service-related information to the network device through the SMF.

[0095] For the sake of easy understanding of the embodiments of this application, some basic concepts related to this application are briefly described.

[0096] 1. Sensing: It can also be called detection, that is, detecting the parameters of a target in the physical environment, such as the position of the target, the speed of the target, etc. It can be understood that the detection system can detect the target by sending sensing information and analyzing the echo signal reflected from the object.

[0097] 2. Sensing signal: A signal used to sense (or detect) a sensed target (or called a target object). The sensing signal is also called a detection signal, a chirp signal, a radar signal, a radar sensing signal, a radar detection signal, or an environmental sensing signal, etc.

[0098] The sensing signal can be a pulse signal or a signal in a wireless communication system. For example, the sensing signal can be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier, and the specific sequence can be any one of the following sequences: Zadoff-Chu sequence (abbreviated as ZC sequence), pseudo-random sequence, predefined sequence, etc. Among them, the pseudo-random sequence includes but is not limited to the longest linear feedback shift register sequence (abbreviated as m sequence), Gold sequence, etc.; the predefined sequence includes but is not limited to random data symbols. For example, the predefined sequence can be random data symbols modulated by means of quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (QAM), etc.

[0099] 3. Echo signal: A signal generated by the reflection of the sensing signal by the target object. Exemplarily, the time delay of the echo signal relative to the sensing signal can reflect the distance of the target object relative to the transmitter. Or, the Doppler frequency shift of the echo signal relative to the sensing signal can reflect the speed of the target object.

[0100] 4. Communication signal: A signal transmitted between communication devices for communication. For example, it includes the signal transmitted between a network device and a terminal device. Such as, the signal carried on the physical downlink shared channel (PDSCH).

[0101] 5. Coherent processing time: It refers to a time period much longer than the sensing signal transmission period. During the coherent processing time, the transmitting end sends the sensing signal multiple times in the same beam direction, the receiving end receives the echo signal of the sensing signal, and performs coherent accumulation on all the echo signals received during this time period to achieve sensing ranging and speed measurement. Among them, coherent accumulation can generally be achieved by performing matched filtering and Fourier transform on all the echo signals during this time period.

[0102] 6. Time unit: A time domain unit. In the time domain, it can be divided into at least one time unit. In this application, the time unit is understood as the time domain granularity, including but not limited to: sub-frames, time slots, or symbols, etc. Among them, a sub-frame is a time unit in a communication system. The sub-frame length of a 3G communication system is 2 ms, and the sub-frame length of a 4G or 5G communication system is 1 ms.

[0103] 7. Communication-sensing fusion signal: It can also be called a communication-sensing integrated signal, indicating a signal that can be used for both communication and sensing. Being used for communication can be understood as that this signal carries communication data or communication reference signal sequences that need to be transmitted between communication devices.

[0104] 8. Communication-sensing integration: Aims to integrate the two functions of wireless communication and sensing in the same system, and use various propagation characteristics of wireless signals to achieve sensing functions such as positioning, detection, imaging, and recognition of targets, so as to obtain information about the surrounding physical environment, explore communication capabilities, and enhance the user experience.

[0105] For example, the first device sends a sensing signal, and the second device (or the first device) receives the echo signal reflected by the target in the environment through the sensing signal to perform sensing. The time delay of the echo signal relative to the sent sensing signal reflects the distance of the target; the Doppler frequency shift of the echo signal relative to the sent sensing signal reflects the speed of the target.

[0106] Exemplarily, according to the differences between the sender and receiver of the sensing signal, the sensing mode can be divided into two categories: single-station sensing and double-station sensing. Among them, single-station sensing means that the device that sends the sensing signal and the device that receives the echo signal reflected by the target through the sensing signal are the same device; double-station sensing means that the device that sends the sensing signal and the device that receives the echo signal reflected by the target through the sensing signal are different devices.

[0107] For the convenience of understanding, the following briefly introduces the sensing mode in combination with Figure 2 from (a) to (f).

[0108] Figure 2 As shown in (a), it is the sensing mode of the base station sending and receiving by itself, belonging to the above-mentioned single-station sensing; Figure 2 As shown in (b), it is the sensing mode of the terminal sending and receiving by itself, belonging to the above-mentioned single-station sensing; Figure 2 As shown in (c), it is that base station #1 sends a sensing signal and base station #2 receives the echo signal, belonging to the above-mentioned double-station sensing; Figure 2 As shown in (d), it is that terminal #1 sends a sensing signal and terminal #2 receives the echo signal, belonging to the above-mentioned double-station sensing; Figure 2 As shown in (e), it is that the base station sends a sensing signal and the terminal receives the echo signal, belonging to the above-mentioned double-station sensing; Figure 2As shown in (f), the terminal sends a sensing signal and the base station receives the echo signal, which belongs to the bistatic sensing described above.

[0109] It should be understood that Figure 2 this is only an exemplary illustration of possible ways of the sensing mode and does not impose any limitation on the protection scope of this application.

[0110] 9. Direct (line of sight, LOS) path or non-direct (non-line of sight, NLOS) path: The way that electromagnetic waves propagate in a straight line is called line-of-sight (i.e., LOS) propagation; in addition, the way that electromagnetic waves reach the receiving end through reflection, scattering, and diffraction is called non-line-of-sight propagation (i.e., NLOS). Generally, the propagation conditions of a wireless communication system are divided into two environments: line-of-sight (LOS) and non-line-of-sight (NLOS). Under line-of-sight conditions, the wireless signal propagates in a straight line between the transmitting end and the receiving end without obstruction; in the presence of obstacles, the wireless signal propagates between the transmitting end and the receiving end through reflection, scattering, and diffraction.

[0111] 10. Sensing-assisted communication: The network device can enhance the communication performance of the terminal device therein by using the sensed target information, that is, sensing-assisted communication. For example, the network device can use the sensed position and speed of the terminal device to predict the position of the terminal device in the next time period. Then, the network device no longer needs to send a reference signal to the terminal device in the next time period to measure the communication quality of different beams, and can directly select the best beam to communicate with the terminal device, reducing the overhead of sending the reference signal and increasing the communication capacity.

[0112] 11. Channel State Information (CSI) Report: In an NR communication system, relevant indication quantities of channel state information reported by a terminal, including parameters such as Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), CSI Reference Signal (CSI-RS) Resource Indicator (CRI), Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) Block (SS / PBCH Block) Resource Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), Layer 1-Reference Signal Received Power (L1-RSRP), or Layer 1-Signal to Interference plus Noise Ratio (L1-SINR).

[0113] 12. Target: It can be various tangible objects in the environment that can reflect electromagnetic waves. For example, geographical features such as mountains, forests, or buildings, and can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. The target can also be referred to as the perceived target, detected target, perceived object, detected object, or perceived device, etc., which is not limited in the embodiments of this application.

[0114] The above introduced the basic concepts that may be involved in the embodiments of this application, and communication perception integration was introduced in the basic concepts. A communication perception integration solution is: The base station senses information such as the position and speed of targets in the environment by sending perception signals and receiving echo signals reflected by targets in the environment, as Figure 3 shown. The targets in the environment may be either objects in the environment (without a communication connection with the base station, such as the target in Figure 3 ), or terminal devices (with a communication connection with the base station, such as terminal device #1 and terminal device #2 in Figure 3 ).

[0115] When the base station senses targets in the environment, it generally can only sense targets in the line-of-sight (i.e., LOS) situation with the base station, such as Figure 3The environmental target and terminal device #1 therein; while for the target in the non-line-of-sight (i.e., NLOS) situation with the base station (such as Figure 3 the terminal device #2 therein), the base station generally cannot sense such a target. This is because the sensing signal sent by the base station needs to be reflected multiple times to receive the corresponding echo signal, and the received echo signal has experienced a two-way path loss (going and coming back), with a relatively large signal loss and weak intensity, so the base station generally cannot detect it. For the terminal device in the non-line-of-sight (i.e., NLOS) situation (where there is no LOS path and only NLOS paths exist) with the base station, it can also communicate with the base station. This is because the communication link has only one-way, and the path loss is smaller than that of sensing. Therefore, the terminal device with only NLOS paths can also communicate with the base station.

[0116] It should be understood that based on the information status information measurement results reported by the existing terminal device, the network device cannot determine whether the wireless signal between the terminal device and the network device propagates linearly between the network device and the terminal device without obstruction, resulting in the network device being unable to judge whether the perceived information can be used to enhance the communication performance with the terminal device.

[0117] To solve the problem in the above communication and sensing integration solution that the network device cannot judge whether the perceived information can be used to enhance the communication performance with the terminal device, this application provides a communication method. By measuring the signal sent by the network device by the terminal device and reporting the measurement results, the network device can determine the communication signal transmission path situation between the terminal device and the network device, so that the network device can decide whether to use the perceived information to enhance the communication performance of the terminal device.

[0118] It should be understood that the communication method provided by the embodiments of this application can be applied to a system that communicates through multi-antenna technology. For example, Figure 1 the communication system 100 shown in

[0119] Exemplarily, the communication method provided by the embodiments of this application can be applied to Figure 2 the single-station sensing scenario where the network device shown in (a) in

[0120] spontaneously transmits and receives. For example, the network device transmits a sensing signal or a communication and sensing fusion signal, and the network device receives the echo signal generated by the reflection of the sensing signal or the communication and sensing fusion signal by the target in the environment, and then senses information such as the position and speed of the target.

[0121] It should be noted that the target device and the terminal device in the environment can be the same device or different devices.

[0122] It should also be understood that the embodiments shown below do not particularly limit the specific structure of the execution entity of the method provided by the embodiments of the present application. As long as it can run a program recorded with the code of the method provided by the embodiments of the present application to communicate according to the method provided by the embodiments of the present application. For example, the execution entity of the method provided by the embodiments of the present application can be a terminal device, or a functional module in the terminal device that can call and execute the program.

[0123] Figure 4 It is a schematic flowchart of a communication method provided by the embodiments of the present application, including the following steps:

[0124] S410, send multiple signals.

[0125] In this embodiment, sending multiple signals is also equivalent to outputting multiple signals. For example, it may include the following two possibilities:

[0126] Possibility one: The network device sends multiple signals to the terminal device.

[0127] Possibility two: After the baseband chip or processor of the network device generates multiple signals, it can output the multiple signals to the radio frequency unit of the network device. Further, the radio frequency unit can send the multiple signals to the terminal device.

[0128] Correspondingly, the terminal device receives multiple signals from the network device.

[0129] Specifically, the network device resource sends M signals to the terminal device. Correspondingly, the terminal device receives M signals from the network device, where M is an integer greater than 1.

[0130] Exemplarily, the network device can send M signals to the terminal device on multiple resources, and the terminal device can also receive M signals on multiple resources. The resources involved in this embodiment can be time-frequency resources. Specifically, the time-frequency resources are composed of time-domain resources and frequency-domain resources. For example, the resources involved in this embodiment are composed of time units in the time domain (such as symbols, time slots, sub-frames, etc.) and frequency-domain units in the frequency domain (such as sub-carriers). It should be understood that the specific definition of the resources in this embodiment is not limited, and reference can be made to the description of the resources for carrying signals between the network device and the terminal device in the current related technologies, which will not be elaborated here.

[0131] Specifically, a signal can be transmitted on one resource. Specifically, different signals can be transmitted on multiple resources, or the same signal can be transmitted on multiple resources. Exemplarily, M signals are sent on M resources, and the M signals can be different from each other, partially the same, or completely the same. Herein, signal identity can be understood as the same data, signaling, sequence, etc. carried on the signals.

[0132] For example, if a network device sends signal #1 on resource #1, signal #2 on resource #2, and signal #3 on resource #3, then a terminal device receives signal #1 on resource #1, signal #2 on resource #2, and signal #3 on resource #3.

[0133] For another example, if a network device sends signal #1 on resource #1 and signal #2 on resource #2, then the terminal device receives signal #1 on resource #1 and signal #2 on resource #2. Herein, signal #1 and signal #2 are the same, e.g., the data, signaling, sequence, etc. carried by signal #1 and signal #2 are the same.

[0134] Exemplarily, each of the M signals is associated with an identifier.

[0135] For example, signal #1 among the M signals is associated with identifier #1, and signal #2 is associated with identifier #2. Signal #1 and signal #2 can be the same or different.

[0136] For another example, signal #1 among the M signals is associated with identifier #1, and signals #2 and #3 are associated with identifier #2.

[0137] Exemplarily, at least one of the multiple resources for carrying the M signals is associated with an identifier. Or rather, a certain identifier is used to identify at least one of the multiple resources. Herein, the multiple resources for carrying the M signals can belong to a resource set.

[0138] For example, resource #1 is associated with identifier #1, and resource #2 is associated with identifier #2. Optionally, resource #1 carries signal #1, resource #2 carries signal #2, and signal #1 and signal #2 can be the same or different.

[0139] For another example, resource #1 is associated with identifier #1, and resources #2 and #3 are associated with identifier #2. Optionally, resource #1 carries signal #1, resource #2 carries signal #2, and resource #3 carries signal #3.

[0140] Exemplarily, at least one of the multiple beams for sending the M signals is associated with an identifier. Or rather, a certain identifier is used to identify at least one of the multiple beams.

[0141] For example, beam #1 is associated with identifier #1, and beam #2 is associated with identifier #1. Optionally, beam #1 is used to transmit signal #1, and beam #2 is used to transmit signal #2, where signal #1 and signal #2 may be the same or different.

[0142] Also for example, beam #1 is associated with identifier #1, and beams #2 and #3 are associated with identifier #2. Optionally, beam #1 is used to transmit signal #1, beam #2 is used to transmit signal #2, and beam #3 is used to transmit signal #3.

[0143] By way of example and not limitation, the signals among the M signals can be transmitted through different beams.

[0144] For example, the M signals include signal #1 and signal #2. Signal #1 is transmitted through beam #1, and signal #2 is transmitted through beam #2, where the direction of beam #1 is different from that of beam #2.

[0145] Also for example, the M signals include signal #1, signal #2, and signal #3. Among them, signal #1 is transmitted through beam #1, and signals #2 and #3 are transmitted through beam #2, where the direction of beam #1 is different from that of beam #2.

[0146] By way of example and not limitation, the signals on different resources can be transmitted through different beams.

[0147] For example, signal #1 carried on resource #1 is transmitted through beam #1, and signal #2 carried on resource #2 is transmitted through beam #2, where the direction of beam #1 is different from that of beam #2. Among them, signal #1 and signal #2 may be the same or different.

[0148] For ease of understanding, the following is combined with Figure 5 to illustrate the forms of the M signals transmitted by the network device.

[0149] As Figure 5 shown, the network device transmits 4 signals on 4 resources respectively. The identifiers (IDs) associated with these 4 signals are 1, 2, 3, and 4 respectively, and the signals associated with different identifiers are transmitted through different beams. As Figure 5 shown, the transmission beam directions of these 4 signals are different.

[0150] It can be seen from Figure 5 that the network device carries 4 signals on 4 resources, and these 4 signals are transmitted through 4 beams. For example, the 4 resources are resource #1, resource #2, resource #3, and resource #4 respectively, the 4 signals are signal #1, signal #2, signal #3, and signal #4 respectively, the 4 beams are beam #1, beam #2, beam #3, and beam #4 respectively, and the 4 identifiers are 1, 2, 3, and 4 respectively.

[0151] Among them, ID1 is associated with signal #1, ID2 is associated with signal #2, ID3 is associated with signal #3, and ID4 is associated with signal #4; ID1 is associated with resource #1, ID2 is associated with resource #2, ID3 is associated with resource #3, and ID4 is associated with resource #4; ID1 is associated with beam #1, ID2 is associated with beam #2, ID3 is associated with beam #3, and ID4 is associated with beam #4. That is, ID1 can be the identifier of signal #1, resource #1, or beam #1, ID2 can be the identifier of signal #2, resource #2, or beam #2, ID3 can be the identifier of signal #3, resource #3, or beam #3, and ID4 can be the identifier of signal #4, resource #4, or beam #4.

[0152] It should be noted that Figure 5 This is only an example and does not constitute any limitation to the protection scope of this application. For example, the number of signals sent by the network device may not be 4.

[0153] Exemplarily, the above-mentioned identifier can also be called an index value, that is, each of the M signals is associated with an index value, and the index values associated with different signals can be the same or different, and the signals associated with different index values are sent through different beams. In addition, a beam can also be called a spatial transmission filter or a spatial filter or a space domain filter.

[0154] Exemplarily, before sending M signals, the network device can send first information to the terminal device, and the first information is the configuration information of these multiple resources.

[0155] As a possible implementation manner, the first information indicates at least one of the time-frequency domain resource location of the resource, the sequence adopted by the signal carried on the resource, and the ID of the resource. Correspondingly, the terminal device receives the first information sent by the network device and determines the configuration information of the resource so that the terminal device can receive signals on these multiple resources.

[0156] Optionally, the signal is SSB or CSI-RS.

[0157] For example, when the above-mentioned signal is CSI-RS, it is necessary to indicate the resources occupied by CSI-RS through the first information. Also for example, when the above-mentioned signal is SSB, since the resource configuration carrying SSB is predefined by the protocol, it is not necessary to indicate the resources occupied by SSB through the first information.

[0158] Further, after the terminal device receives the above-mentioned multiple signals in this embodiment, it can perform measurements based on the multiple signals to obtain feedback information, then Figure 4 The method flow shown also includes:

[0159] S420, the terminal device determines measurement information.

[0160] In this embodiment, the measurement information determined by the terminal device can be used to determine whether the sensing information is used to assist communication. For example, it can be determined whether there is a LOS path between the terminal device and the network device based on the measurement information, so as to determine whether the sensing information of the terminal device can be used to enhance the communication performance with the terminal device.

[0161] Specifically, for the M received signals, the terminal device can calculate the channel impulse response of the received signals to determine the first-path delay and / or the first-path power of each signal, as Figure 6 shown. The channel impulse response can reflect the delay and power of each path in the received signal, that is, the delay and amplitude of each path in the transmission environment between the network device and the terminal device. Among them, the path with the smallest delay is the first path of the signal, the first-path delay is the delay of the signal transmitted on the first path, and the first-path power is the signal power of the signal transmitted on the first path.

[0162] For example, the channel impulse response calculated by a certain received signal is as Figure 6 shown. It can be seen from Figure 6 that the signal sent by the network device experiences 4 propagation paths, and the delays of each path are t0, t1, t2, and t3 respectively. Among them, t0 is the smallest among t0, t1, t2, and t3, so t0 is the first-path delay of the signal.

[0163] Optionally, the method for the terminal device to calculate the channel impulse response is: the terminal device divides the frequency-domain sequence received on a certain resource by the sequence of the signal sent by the network device resource element by resource element, and performs an inverse Fourier transform on the result to obtain the channel impulse response.

[0164] As a possible implementation (hereinafter simply referred to as Implementation #1), the measurement information includes the identifier of the first signal, and the first signal is the signal with the smallest first-path delay among the multiple signals. Among them, the identifier of the first signal can be the identifier of the resource carrying the first signal, or the identifier of the beam sending the first signal.

[0165] Specifically, in the case shown in the implementation manner #1, after the terminal device receives M signals, it determines the first-path delay of each of the M signals, and thus determines a total of M first-path delays. Then it determines to report the identifier of the signal corresponding to the smallest first-path delay among the M first-path delays to the network device. The first-path delay of the above-mentioned first signal is the smallest first-path delay among the M first-path delays.

[0166] For ease of understanding, the following uses a specific example to illustrate the method for determining measurement information in the case shown in the implementation manner #1:

[0167] Example 1:

[0168] As shown in Figure 5 the terminal device receives 4 signals on 4 resources (for example, it receives signal #1 on resource #1, signal #2 on resource #2, signal #3 on resource #3, and signal #4 on resource #4. Signal #1 is sent through beam #1, signal #2 is sent through beam #2, signal #3 is sent through beam #3, and signal #4 is sent through beam #4).

[0169] First, based on the signal #1 received on resource #1, the terminal device can calculate the channel impulse response #1, obtain the delay and power of each propagation path that signal #1 has experienced, and denote the first-path delay of signal #1 as k1. Based on the signal #2 received on resource #2, the terminal device can calculate the channel impulse response #2, obtain the delay and power of each propagation path that signal #2 has experienced, and denote the first-path delay of signal #2 as k2. Based on the signal #3 received on resource #3, the terminal device can calculate the channel impulse response #3, obtain the delay and power of each propagation path that signal #3 has experienced, and denote the first-path delay of signal #3 as k3. Based on the signal #4 received on resource #4, the terminal device can calculate the channel impulse response #4, obtain the delay and power of each propagation path that signal #4 has experienced, and denote the first-path delay of signal #4 as k4.

[0170] Then, the terminal device calculates which one of these 4 first-path delays (such as the above-mentioned k1, k2, k3, and k4) is the smallest, and determines the identifier of the signal corresponding to the smallest first-path delay as the identifier to be reported. For example, if k1 is the smallest among k1, k2, k3, and k4, the identifier to be reported can be the identifier of signal #1, or the identifier of resource #1 carrying signal #1, or the identifier of beam #1 sending signal #1.

[0171] Optionally, the identifier of signal #1 is associated with resource #1 carrying signal #1.

[0172] Optionally, the identifier of signal #1 is associated with beam #1 sending signal #1.

[0173] For ease of description, in the following text, the reported identifier with the signal #1 is used as an example for illustration.

[0174] Optionally, when there are multiple first-path time delays that are the same, the multiple first-path time delays respectively correspond to multiple signals, and there are multiple first-path powers for the multiple signals. The terminal device uses the identifier of the signal corresponding to the strongest first-path power among the multiple first-path powers as the identifier to be reported. For example, if k1 and k2 are the same, and k1 and k2 are the smallest among k1, k2, k3, and k4, and the first-path power of signal #1 is greater than the first-path power of signal #2, the identifier to be reported can be the identifier of signal #1, or the identifier of resource #1 carrying signal #1, or the identifier of beam #1 transmitting signal #1.

[0175] Exemplarily, in the case shown in this implementation #1, the measurement information may further include: information on the first-path time delay and / or information on the first-path power of the first signal.

[0176] As an example but not a limitation, the information on the first-path time delay corresponding to a certain signal above may indicate one of N first-path time delays, where N is an integer greater than 1. Among them, a certain signal can be any one of M signals. For example, the above-mentioned first signal, or at least one signal involved in the following implementation #2. In addition, the N first-path time delays may be 4 first-path time delays in Table 1 below. For example, the first-path time delay in Table 1 less than or equal to 0 is one first-path time delay, the first-path time delay in Table 1 greater than 0 and less than 30 ns is another first-path time delay, the first-path time delay in Table 1 greater than or equal to 30 ns and less than 100 ns is another first-path time delay, and the first-path time delay in Table 1 greater than or equal to 100 ns is another first-path time delay.

[0177] Optionally, the N first-path time delays include a first first-path time delay, and the first first-path time delay is a first-path time delay less than 0 or equal to 0.

[0178] For ease of understanding, the following combines specific examples to illustrate the correspondence between the information on the first-path time delay and the first-path time delay.

[0179] Example 2:

[0180] Exemplarily, the information on the first-path time delay is a bits, and the information on the first-path power is b bits, where both a and b are integers greater than 1.

[0181] For example, the information on the first-path time delay is 2 bits, and the correspondence between the first-path time delay and the values of the 2 bits is shown in Table 1 below.

[0182] Table 1 Correspondence table between first-path time delay and information on first-path time delay

[0183] Value of 2 bits First path delay 00 First path delay is less than or equal to 0 01 First path delay is greater than 0 and less than 30 ns (nanoseconds) 10 First path delay is greater than or equal to 30 ns and less than 100 ns 11 First path delay is greater than or equal to 100 ns

[0184] By way of example and not limitation, the information on the first-path power corresponding to a certain signal among the above can indicate one of Q first-path powers, where Q is an integer greater than 1. Among them, a certain signal can be any one of M signals. For example, the above first signal, or at least one signal involved in Implementation #2 below. In addition, the Q first-path powers can be the 8 first-path powers in Table 2 below. For example, the first-path power in Table 2 less than -144 dBm is one first-path power, the first-path power in Table 2 greater than or equal to -144 dBm and less than -140 dBm is another first-path power, and the first-path power in Table 2 greater than or equal to -140 dBm and less than -136 dBm is yet another first-path power.

[0185] For ease of understanding, the corresponding relationship between the information on the first-path power and the first-path power is described below with specific examples.

[0186] For example, the information on the first-path power is 3 bits, and the corresponding relationship between the first-path power and the 3-bit values is shown in Table 2 below.

[0187] Table 2 Corresponding Table of First-Path Power and Information on First-Path Power

[0188] Value of 3 bits First path power 000 First path power is less than -144 dBm 001 First path power is greater than or equal to -144 dBm and less than -140 dBm 010 First path power is greater than or equal to -140 dBm and less than -136 dBm 011 First path power is greater than or equal to -136 dBm and less than -132 dBm 100 First path power is greater than or equal to -132 dBm and less than -128 dBm 101 First path power is greater than or equal to -124 dBm and less than -120 dBm 110 First path power is greater than or equal to -120 dBm and less than -116 dBm 111 First path power is greater than or equal to -116 dBm and less than -112 dBm

[0189] In the case shown in this Implementation #1, the information that the terminal device can report through the measurement information includes the following possibilities:

[0190] 1) The measurement information includes the identifier of the first signal. The terminal device can report the identifier of the signal with the smallest first-path delay through the measurement information. Also, for example, the measurement information includes the identifier of the resource carrying the first signal. The terminal device can report the identifier of the resource carrying the signal with the smallest first-path delay through the measurement information. Again, for example, the measurement information includes the identifier of the beam transmitting the first signal. The terminal device can report the identifier of the beam transmitting the signal with the smallest first-path delay through the measurement information. For example, the measurement information includes a field that indicates the identifier of the first signal. For example, if the identifier of the first signal is 1, the value of this field is 1. Also, for example, the measurement information includes a field that indicates the identifier of the resource carrying the first signal. For example, if the identifier of the resource carrying the first signal is 1, the value of this field is 1. Again, for example, the measurement information includes a field that indicates the identifier of the beam transmitting the first signal. For example, if the identifier of the beam transmitting the first signal is 1, the value of this field is 1.

[0191] 2) The measurement information includes the identifier of the first signal and the information on the first-path delay of the first signal. The terminal device can report, through the measurement information, the identifier of the signal with the minimum first-path delay, and the information indicating the first-path delay. Also, for example, the measurement information includes the identifier of the resource carrying the first signal and the information on the first-path delay of the first signal. The terminal device can report, through the measurement information, the identifier of the resource carrying the signal with the minimum first-path delay, and the information indicating the first-path delay. Additionally, for example, the measurement information includes the identifier of the beam transmitting the first signal and the information on the first-path delay of the first signal. The terminal device can report, through the measurement information, the identifier of the beam transmitting the signal with the minimum first-path delay, and the information indicating the first-path delay. For example, the measurement information includes two fields, field #1 and field #2. Field #1 indicates the identifier of the first signal, and field #2 indicates the first-path delay of the first signal. For example, if the identifier of the first signal is 1, the value of field #1 is 1, and if the first-path delay of the first signal is less than or equal to 0, the value of field #2 is 00 (refer to Table 1 above). Also, for example, the measurement information includes two fields, field #1 and field #2. Field #1 indicates the identifier of the resource carrying the first signal, and field #2 indicates the first-path delay of the first signal. For example, if the identifier of the resource carrying the first signal is 1, the value of field #1 is 1, and if the first-path delay of the first signal is less than or equal to 0, the value of field #2 is 00 (refer to Table 1 above). Additionally, for example, the measurement information includes two fields, field #1 and field #2. Field #1 indicates the identifier of the beam transmitting the first signal, and field #2 indicates the first-path delay of the first signal. For example, if the identifier of the beam transmitting the first signal is 1, the value of field #1 is 1, and if the first-path delay of the first signal is less than or equal to 0, the value of field #2 is 00 (refer to Table 1 above).

[0192] 3) The measurement information includes the identifier of the first signal and the information on the first path power of the first signal. The terminal device can report, through the measurement information, the identifier of the signal with the minimum first path delay, and the information indicating the first path power. Also, for example, the measurement information includes the identifier of the resource carrying the first signal and the information on the first path power of the first signal. The terminal device can report, through the measurement information, the identifier of the resource carrying the signal with the minimum first path power, and the information indicating the first path power. Another example is that the measurement information includes the identifier of the beam transmitting the first signal and the information on the first path power of the first signal. The terminal device can report, through the measurement information, the identifier of the beam transmitting the signal with the minimum first path power, and the information indicating the first path delay. For example, the measurement information includes two fields, field #1 and field #3. Field #1 indicates the identifier of the first signal, and field #3 indicates the first path power of the first signal. For example, if the identifier of the first signal is 1, the value of field #1 is 1, and the first path power of the first signal is less than -144 dBm, the value of field #3 is 000 (refer to Table 2 above). Also for example, the measurement information includes two fields, field #1 and field #3. Field #1 indicates the identifier of the resource carrying the first signal, and field #3 indicates the first path power of the first signal. For example, if the identifier of the resource carrying the first signal is 1, the value of field #1 is 1, and the first path power of the first signal is less than -144 dBm, the value of field #3 is 000 (refer to Table 2 above). Another example is that the measurement information includes two fields, field #1 and field #3. Field #1 indicates the identifier of the beam transmitting the first signal, and field #3 indicates the first path power of the first signal. For example, if the identifier of the beam transmitting the first signal is 1, the value of field #1 is 1, and the first path power of the first signal is less than -144 dBm, the value of field #3 is 000 (refer to Table 2 above).

[0193] 4) The measurement information includes the identifier of the first signal, the information on the first-path delay of the first signal, and the information on the first-path power of the first signal. The terminal device can report, through the measurement information, the identifier of the signal with the minimum first-path delay, the information indicating the first-path delay, and the information indicating the first-path power. Also, for example, the measurement information includes the identifier of the resource carrying the first signal, the information on the first-path delay of the first signal, and the information on the first-path power of the first signal. The terminal device can report, through the measurement information, the identifier of the resource carrying the signal with the minimum first-path power, the information indicating the first-path delay, and the information indicating the first-path power. Another example is that the measurement information includes the identifier of the beam transmitting the first signal, the information on the first-path delay of the first signal, and the information on the first-path power of the first signal. The terminal device can report, through the measurement information, the identifier of the beam transmitting the signal with the minimum first-path power, the information indicating the first-path delay, and the information indicating the first-path power. Among them, the identifier of the first signal is associated with the resource carrying the signal. Additionally, the identifier of the first signal is associated with the beam transmitting the signal. For example, the measurement information includes three fields, field #1, field #2, and field #3. This field #1 indicates the identifier of the first signal. This field #2 indicates the first-path delay of the first signal. This field #3 indicates the first-path power of the first signal. For example, if the identifier of the first signal is 1, the value of this field #1 is 1. If the first-path delay of the first signal is less than or equal to 0, the value of this field #2 is 00 (refer to Table 1 above). If the first-path power of the first signal is less than -144 dBm, the value of this field #3 is 000 (refer to Table 2 above). Another example is that the measurement information includes three fields, field #1, field #2, and field #3. This field #1 indicates the identifier of the resource carrying the first signal. This field #2 indicates the first-path delay of the first signal. This field #3 indicates the first-path power of the first signal. For example, if the identifier of the resource carrying the first signal is 1, the value of this field #1 is 1. If the first-path delay of the first signal is less than or equal to 0, the value of this field #2 is 00 (refer to Table 1 above). If the first-path power of the first signal is less than -144 dBm, the value of this field #3 is 000 (refer to Table 2 above). Yet another example is that the measurement information includes three fields, field #1, field #2, and field #3. This field #1 indicates the identifier of the beam transmitting the first signal. This field #2 indicates the first-path delay of the first signal. This field #3 indicates the first-path power of the first signal. For example, if the identifier of the beam transmitting the first signal is 1, the value of this field #1 is 1. If the first-path delay of the first signal is less than or equal to 0, the value of this field #2 is 00 (refer to Table 1 above). If the first-path power of the first signal is less than -144 dBm, the value of this field #3 is 000 (refer to Table 2 above).

[0194] As another possible implementation (hereinafter simply referred to as Implementation #2), the measurement information includes the information on the first-path delay of at least one signal among multiple signals.

[0195] Exemplarily, the terminal device calculates the first-path delay and the first-path power of the received M signals. Among them, the first-path delay and the first-path power of a certain signal can be obtained by calculating the channel impulse response, and the channel impulse response can reflect the delay and power of each path in the received signal, that is, the delay and amplitude of each path in the transmission environment between the network device and the terminal device.

[0196] For example, the channel impulse response calculated by a certain received signal is as Figure 6 shown. It can be obtained from Figure 6 that the first-path delay is t0, and the first-path power is the power corresponding to the transmission path with the delay of t0.

[0197] Optionally, the measurement information includes the information of the first-path delay of a certain signal among the M signals.

[0198] For example, the M first-path delays of the M signals are respectively: first-path delay #1, first-path delay #2, first-path delay #3,..., first-path delay #M. The measurement information includes the information indicating the first-path delay #1. Optionally, the first-path delay #1 satisfies a preset condition (for example, the terminal device determines to report the first-path delay whose first-path delay is less than the preset value, where the preset value is predefined by the protocol or negotiated between the terminal device and the network, and the preset value is not limited in this embodiment).

[0199] Optionally, the measurement information includes the information of the first-path delays of multiple signals among the M signals.

[0200] For example, the M first-path delays of the M signals are respectively: first-path delay #1, first-path delay #2, first-path delay #3,..., first-path delay #M. The measurement information includes the information indicating the first-path delay #1 and the information indicating the first-path delay #2. Optionally, the first-path delay #1 and the first-path delay #2 satisfy a preset condition.

[0201] Optionally, the measurement information includes the information of the first-path delays of the M signals among the M signals.

[0202] For example, the M first-path delays of the M signals are respectively: first-path delay #1, first-path delay #2, first-path delay #3,..., first-path delay #M. The measurement information includes the first-path delay #1, the first-path delay #2, the first-path delay #3,..., the first-path delay #M.

[0203] Exemplarily, the measurement information may be a list that includes at least one element, and one of the at least one elements indicates the first path delay of one of the at least one signals. Each element in the list includes 1 field, and this field indicates the delay information. For example, the measurement information includes two elements, element #1 and element #2. Element #1 includes 1 field indicating the first path delay of signal #1, and element #2 also includes 1 field indicating the first path delay of signal #2.

[0204] Optionally, in the case shown in this implementation #2, the measurement information may further include the identifiers of at least one signal. Specifically, the measurement information includes the information on the first path delay of at least one signal and the identifiers of the at least one signal. Among them, the information on the first path delay of each signal in the at least one signal in the measurement information is bound to its identifier, and the identifier of the signal may be the identifier of the resource carrying the signal or the identifier of the beam sending the signal.

[0205] For example, the measurement information includes the information on the first path delay of signal #1 and the identifier of signal #1, and the information on the first path delay of signal #2 and the identifier of signal #2.

[0206] Also for example, the measurement information includes the information on the first path delay of signal #1 and the identifier of the resource carrying signal #1, and the information on the first path delay of signal #2 and the identifier of the resource carrying signal #2.

[0207] Yet another example, the measurement information may further include the information on the first path delay of signal #1 and the identifier of the beam sending signal #1, and the information on the first path delay of signal #2 and the identifier of the beam sending signal #2.

[0208] Exemplarily, the measurement information can be a list that includes at least one element, and one of the at least one element indicates the identification and the first path delay of one of the at least one signals. Each element in the list includes two fields, one field indicates the identification, and the other field indicates the delay information. For example, the measurement information includes two elements, element #1 and element #2. Element #1 includes two fields, one field indicates the identification of signal #1, and the other field indicates the first path delay of signal #1. Element #2 also includes two fields, one field indicates the identification of signal #2, and the other field indicates the first path delay of signal #2. Also for example, the measurement information includes two elements, element #1 and element #2. Element #1 includes two fields, one field indicates the identification of the resource carrying signal #1, and the other field indicates the first path delay of signal #1. Element #2 also includes two fields, one field indicates the identification of the resource carrying signal #2, and the other field indicates the first path delay of signal #2. Yet another example, the measurement information includes two elements, element #1 and element #2. Element #1 includes two fields, one field indicates the identification of the beam transmitting signal #1, and the other field indicates the first path delay of signal #1. Element #2 also includes two fields, one field indicates the identification of the beam transmitting signal #2, and the other field indicates the first path delay of signal #2.

[0209] Optionally, in the case shown in this implementation #2, the measurement information can further include the information of the first path power of at least one signal. Specifically, the measurement information includes the information of the first path delay of at least one signal and the information of the first path power of the at least one signal, where the information of the first path delay of each signal in the at least one signal in the measurement information is bound to its first path power; or,

[0210] Specifically, the measurement information includes the information of the first path delay of at least one signal, the information of the first path power of the at least one signal, and the identification of the at least one signal. Among them, the information of the first path delay of each signal in the at least one signal in the measurement information is bound to its identification and first path power.

[0211] For example, the measurement information includes the information of the first path delay of signal #1 and the information of the first path power of signal #1, and the information of the first path delay of signal #2 and the information of the first path power of signal #2.

[0212] Exemplarily, the measurement information can be a list that includes at least one element, and one of the at least one element indicates the first path power and the first path delay of one of the at least one signal. Each element in the list includes two fields, one field indicates the first path power, and the other field indicates the delay information. For example, the measurement information includes two elements, element #1 and element #2. Element #1 includes two fields, one field indicates the first path power of signal #1, and the other field indicates the first path delay of signal #1. Element #2 also includes two fields, one field indicates the first path power of signal #2, and the other field indicates the first path delay of signal #2.

[0213] Also for example, the measurement information includes the information of the first path delay of signal #1, the information of the first path power of signal #1, and the identifier of signal #1; and the information of the first path delay of signal #2, the information of the first path power of signal #2, and the identifier of signal #2.

[0214] Exemplarily, the measurement information is a list that includes at least one element, and one of the at least one element indicates the identifier, the first path power, and the first path delay of one of the at least one signal. Each element in the list includes three fields, one field indicates the first path power, another field indicates the delay information, and there is also a field indicating the identifier. For example, the measurement information includes two elements, element #1 and element #2. Element #1 includes three fields, one field indicates the first path power of signal #1, another field indicates the first path delay of signal #1, and there is also a field indicating the identifier of signal #1. Element #2 also includes three fields, one field indicates the first path power of signal #2, another field indicates the first path delay of signal #2, and there is also a field indicating the identifier of signal #2. Also for example, the measurement information includes two elements, element #1 and element #2. Element #1 includes three fields, one field indicates the first path power of signal #1, another field indicates the first path delay of signal #1, and there is also a field indicating the identifier of the resource carrying signal #1. Element #2 also includes three fields, one field indicates the first path power of signal #2, another field indicates the first path delay of signal #2, and there is also a field indicating the identifier of the resource carrying signal #2. Also for example, the measurement information includes two elements, element #1 and element #2. Element #1 includes three fields, one field indicates the first path power of signal #1, another field indicates the first path delay of signal #1, and there is also a field indicating the identifier of the beam transmitting signal #1. Element #2 also includes three fields, one field indicates the first path power of signal #2, another field indicates the first path delay of signal #2, and there is also a field indicating the identifier of the beam transmitting signal #2.

[0215] For ease of understanding, the following uses specific examples to illustrate a way to determine the measurement information in the case shown in implementation mode #2:

[0216] Example 3:

[0217] As shown in Figure 5 the terminal device receives four signals on four resources (e.g., receives Signal #1 on Resource #1, receives Signal #2 on Resource #2, receives Signal #3 on Resource #3, and receives Signal #4 on Resource #4. Signal #1 is sent through Beam #1, Signal #2 is sent through Beam #2, Signal #3 is sent through Beam #3, and Signal #4 is sent through Beam #4).

[0218] First, based on Signal #1 received on Resource #1, the terminal device can calculate Channel Impulse Response #1, obtain the delay and power of each propagation path that Signal #1 has experienced, record the first-path delay of Signal #1 as t1, and the first-path power as p1. Based on Signal #2 received on Resource #2, the terminal device can calculate Channel Impulse Response #2, obtain the delay and power of each propagation path that Signal #2 has experienced, record the first-path delay of Signal #2 as t2, and the first-path power as p2. Based on Signal #3 received on Resource #3, the terminal device can calculate Channel Impulse Response #3, obtain the delay and power of each propagation path that Signal #3 has experienced, record the first-path delay of Signal #3 as t3, and the first-path power as p3. Based on Signal #4 received on Resource #4, the terminal device can calculate Channel Impulse Response #4, obtain the delay and power of each propagation path that Signal #4 has experienced, record the first-path delay of Signal #4 as t4, and the first-path power as p4.

[0219] Then, the terminal device determines the measurement information.

[0220] For example, the measurement information includes the identification of Signal #1, the information of the first-path delay of Signal #1, and the information of the first-path power of Signal #1; and the identification of Signal #2, the information of the first-path delay of Signal #2, and the information of the first-path power of Signal #2; and the identification of Signal #3, the information of the first-path delay of Signal #3, and the information of the first-path power of Signal #3; and the identification of Signal #4, the information of the first-path delay of Signal #4, and the information of the first-path power of Signal #4.

[0221] For another example, the measurement information includes at least one of the information of the first-path delay of Signal #1, the information of the first-path delay of Signal #2, the information of the first-path delay of Signal #3, and the information of the first-path delay of Signal #4.

[0222] For another example, the measurement information includes the information of the first-path delay of Signal #1 and the identification of Signal #1.

[0223] For another example, the measurement information includes the information of the first-path delay of Signal #1, the identification of Signal #1, and the information of the first-path power of Signal #1.

[0224] Further, after the terminal device determines the above measurement information, it may report the measurement information to the network device. Then Figure 4 the method flow shown also includes:

[0225] S430, sending the measurement information.

[0226] In this embodiment, sending the measurement information is also equivalent to outputting the measurement information. For example, it may include the following two possibilities:

[0227] Possibility 1: The terminal device sends the measurement information to the network device.

[0228] Possibility 2: After the baseband chip or processor of the terminal device calculates and determines the measurement information, it may output the measurement information to the radio frequency unit of the terminal device. Further, the radio frequency unit may send the measurement information to the network device.

[0229] Correspondingly, the network device receives the measurement information from the terminal device.

[0230] It should be understood that in this embodiment, there is no limitation on the manner in which the terminal device sends the measurement information to the network device, and mainly what is involved is the content included in the measurement information.

[0231] Optionally, before the terminal device executes steps S420 and S430, the network device sends a measurement request to the terminal device to trigger the terminal device to measure the received signal. The terminal determines the measurement information according to the measurement request and sends the measurement information to the network device.

[0232] Optionally, the measurement information is carried in message 3 of the random access response.

[0233] S440, the network device determines the specific situation of the signal transmission path.

[0234] Exemplarily, in this embodiment, after the network device receives the measurement information reported by the terminal device, it may determine the specific situation of the signal transmission path between the terminal device and the network device based on the measurement information (for example, determine whether there is a LOS path between the terminal device and the network device), so that the network device can determine whether it can enhance the communication performance with the terminal device using the perception information of the terminal device.

[0235] As a possible implementation manner, the measurement information reported by the terminal device includes the identifier of the first signal.

[0236] In this implementation manner, the network device may determine whether the communication connection between the terminal device and the network device is a LOS path according to the identifier of the first signal and the prior information of the network device.

[0237] For example, the prior information of the network device includes the SSB index feedback by the terminal device in the random access response (e.g., the network device receives the random access response feedback, and the random access response feedback includes the index of the synchronization signal block SSB). The network device determines whether the communication connection between the terminal device and the network device is a LOS path by comparing the difference between the identifier of the first signal and the SSB index. In a possible implementation, when the identifier of the first signal is different from the SSB index, it can be considered that the communication connection between the terminal device and the network device is not a LOS path; when the identifier of the first signal is the same as the SSB index, it can be considered that the communication connection between the terminal device and the network device is a LOS path.

[0238] As another possible implementation, the measurement information reported by the terminal device includes the information of the first path delay of at least one signal among multiple signals.

[0239] In this implementation, the network device determines whether the communication connection between the terminal device and the network device is a LOS path according to the information of the first path delay of at least one signal.

[0240] For example, the information of the first path delay of at least one signal reported by the terminal device can be understood as a kind of fingerprint information. The network device can use algorithms such as machine learning and artificial intelligence to predict whether the communication connection between the terminal device and the network device is a LOS path according to at least one measurement result, and determine whether the network device will use the sensing information to assist the communication of the terminal device according to the prediction result.

[0241] Figure 4 In the communication method shown, by the terminal device reporting the measurement information of the signal sent by the network device, the network device can determine whether the communication connection between the terminal device and the network device is a LOS path. After the network device determines whether the communication connection between the terminal device and the network device is a LOS path, it can let the network device judge whether to use the sensing information to assist the communication and enhance the communication performance between the terminal device and the network device.

[0242] For ease of understanding, the following combines a specific example to illustrate the Figure 4 communication method shown above.

[0243] Figure 7 is a schematic flowchart of another communication method provided by the present application, including the following steps:

[0244] S710, the network device obtains the sensing information of the terminal device.

[0245] In this embodiment, the network device can determine the signal transmission path between the network device and the terminal device. For example, the network device determines whether there is a LOS path between the network device and the terminal device, and further determines whether the sensing information can assist the communication between the network device and the terminal device, so as to enhance the communication performance between the terminal device and the network device.

[0246] Specifically, the network device can Figure 4 determine the signal transmission path between the network device and the terminal device through the communication process shown in Figure 7 The method flow shown in

[0247] S711, the network device sends the first information to the terminal device.

[0248] Optionally, the network device indicates the resources for transmitting signals through the first information.

[0249] S712, the network device sends multiple signals to the terminal device.

[0250] Refer to Figure 4 the description of step S410 in

[0251] S713, the network sends a measurement request to the terminal device.

[0252] Optionally, the network device triggers the terminal device to measure the received signals through the measurement request.

[0253] S714, the terminal device determines the measurement information.

[0254] S715, the terminal device sends the measurement information to the network device.

[0255] S716, the network device determines the specific situation of the signal transmission path.

[0256] Steps S714 to S716 can refer to Figure 4 the description of steps S420 to S440 in

[0257] Exemplarily, if the measurement information includes the identifier of the first signal, the network device determining the specific situation of the signal transmission path shown in step S716 above includes: the network device can determine whether the communication connection between the terminal device and the network device is a LOS path according to the identifier of the first signal and the prior information of the network device.

[0258] For example, Figure 7 the method flow shown in

[0259] S717, the network device receives the random access response feedback from the terminal device.

[0260] The random access response feedback includes the index of the synchronization signal block (SSB).

[0261] S718. The network device determines whether there is a line-of-sight (LOS) path according to the identifier of the first signal and the index of the SSB.

[0262] It should be noted that there is no limitation on the sequence of steps S710 and steps S711 to S716. The network device may first obtain the sensing information, then determine the specific situation of the signal transmission path, and judge whether the sensing information can be used to assist communication; or, the network device may first determine the specific situation of the signal transmission path, and directly judge whether the sensing information can be used to assist communication after obtaining the sensing information subsequently.

[0263] It should also be noted that Figure 7 This is only an example and does not constitute any limitation to the protection scope of this application. The method provided in this application for determining the specific situation of the signal transmission path can also be applied to other scenarios that require judging the signal transmission path situation.

[0264] It should be understood that the magnitudes of the sequence numbers of the above processes do not mean the sequence of execution. The execution sequence of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of this application.

[0265] It should also be understood that in various embodiments of this application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0266] It should also be understood that in some of the above embodiments, devices in the existing network architecture are mainly used as examples for illustrative purposes (such as network devices, terminal devices, etc.). It should be understood that this application embodiment does not limit the specific form of the device. For example, devices that can achieve the same functions in the future are applicable to this application embodiment.

[0267] It can be understood that in each of the above method embodiments, the methods and operations implemented by the devices (such as network devices, terminal devices) can also be implemented by components of the devices (such as chips or circuits).

[0268] Above, in combination with Figure 4 This application embodiment's communication method is described in detail. The above communication method is mainly introduced from the perspective of the interaction between the terminal device and the network device. It can be understood that in order for the terminal device and the network device to implement the above functions, they include the corresponding hardware structures and / or software modules for executing each function.

[0269] Those skilled in the art should be able to realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professionals can use different methods to implement the described function for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0270] The following is a detailed description of the communication device provided by this application in combination with Figures 8 to 10 It should be understood that the description of the device embodiments corresponds to the description of the method embodiments. Therefore, for the content not described in detail, reference can be made to the above method embodiments. For the sake of brevity, some content will not be repeated.

[0271] The embodiments of this application can divide the functional modules of the transmitting end device or the receiving end device according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be noted that the division of modules in the embodiments of this application is illustrative, only a logical function division, and there can be other division methods in actual implementation. The following takes the division of each functional module corresponding to each function as an example for description.

[0272] Figure 8 It is a schematic block diagram of the communication device 10 provided by the embodiments of this application. The device 10 includes a transceiver module 11 and a processing module 12. The transceiver module 11 can implement corresponding communication functions. The processing module 12 is used for data processing, or rather, the transceiver module 11 is used to perform operations related to reception and transmission, and the processing module 12 is used to perform other operations except reception and transmission. The transceiver module 11 can also be referred to as a communication interface or a communication unit.

[0273] Optionally, the device 10 may further include a storage module 13. The storage module 13 can be used to store instructions and / or data. The processing module 12 can read the instructions and / or data in the storage module so that the device can implement the actions of the device in the foregoing method embodiments.

[0274] In one design, the device 10 can correspond to the terminal device in the foregoing method embodiments, or a component (such as a chip) of the terminal device.

[0275] The device 10 can implement the steps or processes corresponding to those performed by the terminal device in the above method embodiments. Among them, the transceiver module 11 can be used to perform the operations related to the transceiver of the terminal device in the above method embodiments, and the processing module 12 can be used to perform the operations related to the processing of the terminal device in the above method embodiments.

[0276] In a possible implementation, the transceiver module 11 is used to receive multiple signals. The transceiver module 11 is used to send measurement information, where the measurement information includes the information of the first-path delay of at least one signal among the multiple signals, or the identifier of the first signal, and the first signal is the signal with the smallest first-path delay among the multiple signals.

[0277] When the device 10 is used to execute Figure 4 the method in, the transceiver module 11 can be used to execute the steps of transceiver information in the method, such as steps S410 and S430; the processing module 12 can be used to execute the processing steps in the method, such as step S420.

[0278] It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0279] In another design, the device 10 can correspond to the network device in the above method embodiments, or a component (such as a chip) of the network device.

[0280] The device 10 can implement the steps or processes corresponding to those performed by the network device in the above method embodiments. Among them, the transceiver module 11 can be used to perform the operations related to the transceiver of the network device in the above method embodiments, and the processing module 12 can be used to perform the operations related to the processing of the network device in the above method embodiments.

[0281] In a possible implementation, the transceiver module 11 is used to send multiple signals. The transceiver module 11 is used to receive measurement information, where the measurement information includes the information of the first-path delay of at least one signal among the multiple signals, or the identifier of the first signal, and the first signal is the signal with the smallest first-path delay among the multiple signals.

[0282] When the device 10 is used to execute Figure 4 the method in, the transceiver module 11 can be used to execute the steps of transceiver information in the method, such as steps S410 and S430; the processing module 12 can be used to execute the processing steps in the method, such as step S440.

[0283] It should be understood that the specific processes of each unit executing the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0284] It should also be understood that the device 10 here is embodied in the form of functional modules. The term "module" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors, etc.) for executing one or more software or firmware programs, and a memory, a combined logic circuit, and / or other suitable components that support the described functions. In an alternative example, those skilled in the art can understand that the device 10 can specifically be the mobile management network element in the above embodiments, and can be used to execute each process and / or step corresponding to the mobile management network element in each of the above method embodiments; or, the device 10 can specifically be the terminal device in the above embodiments, and can be used to execute each process and / or step corresponding to the terminal device in each of the above method embodiments. To avoid repetition, it will not be elaborated here.

[0285] The device 10 of each of the above solutions has the function of implementing the corresponding steps executed by the devices (such as terminal devices, network devices) in the above methods. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver module can be replaced by a transceiver (for example, the sending unit in the transceiver module can be replaced by a transmitter, and the receiving unit in the transceiver module can be replaced by a receiver), and other units, such as the processing module, can be replaced by a processor to respectively execute the transceiver operations and related processing operations in each of the method embodiments.

[0286] In addition, the above transceiver module 11 can also be a transceiver circuit (for example, it can include a receiving circuit and a sending circuit), and the processing module can be a processing circuit.

[0287] Figure 9 FIG. is a schematic diagram of another communication device 20 provided by an embodiment of the present application. The device 20 includes a processor 21, and the processor 21 is used to execute the computer program or instruction stored in the memory 22, or read the data / signaling stored in the memory 22 to execute the methods in the above method embodiments. Optionally, the processor 21 is one or more.

[0288] Optionally, as Figure 9 shown, the device 20 further includes a memory 22, and the memory 22 is used to store computer programs or instructions and / or data. The memory 22 can be integrated with the processor 21 or can also be separately provided. Optionally, the memory 22 is one or more.

[0289] Optionally, as Figure 9As shown, the device 20 further includes a transceiver 23, which is used for receiving and / or transmitting signals. For example, the processor 21 is used to control the transceiver 23 to receive and / or transmit signals.

[0290] As a solution, the device 20 is used to implement the operations performed by the terminal device in the above method embodiments.

[0291] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0292] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, the RAM may be used as an external cache. By way of example and not limitation, the RAM includes the following various forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM).

[0293] It should be noted that when the processor is a general - purpose processor, DSP, ASIC, FPGA, or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) can be integrated in the processor.

[0294] It should also be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

[0295] Figure 10 FIG. 0 is a schematic diagram of a chip system 30 provided by an embodiment of the present application. The chip system 30 (or may also be referred to as a processing system) includes a logic circuit 31 and an input / output interface 32.

[0296] Among them, the logic circuit 31 can be the processing circuit in the chip system 30. The logic circuit 31 can be coupled to connect to the storage unit and call the instructions in the storage unit, so that the chip system 30 can implement the methods and functions of the embodiments of the present application. The input / output interface 32 can be the input - output circuit in the chip system 30, output the information processed by the chip system 30, or input the data or signaling information to be processed into the chip system 30 for processing.

[0297] As a solution, the chip system 30 is used to implement the operations performed by the terminal device in the above - mentioned method embodiments.

[0298] For example, the logic circuit 31 is used to implement the processing - related operations performed by the terminal device in the above - mentioned method embodiments; the input / output interface 32 is used to implement the sending and / or receiving - related operations performed by the terminal device in the above - mentioned method embodiments.

[0299] The embodiment of the present application also provides a computer - readable storage medium, on which computer instructions for implementing the methods performed by the device in the above - mentioned method embodiments are stored.

[0300] For example, when the computer program is executed by the computer, the computer can implement the methods performed by the terminal device or network device in the above - mentioned method embodiments.

[0301] The embodiment of the present application also provides a computer program product, including instructions, which when executed by the computer, implement the methods performed by the terminal device or network device in the above - mentioned method embodiments.

[0302] The embodiment of the present application also provides a communication system, including the aforementioned terminal device and network device.

[0303] The explanations and beneficial effects of the relevant content in any of the above - provided devices can refer to the corresponding method embodiments provided above, and will not be elaborated here.

[0304] Those of ordinary skill in the art will appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are executed 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 for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0305] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0306] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the couplings, direct couplings, or communication connections shown or discussed with each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0307] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0308] In addition, the functional units in each embodiment of this application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0309] When the above-described function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0310] As described above, the foregoing are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims described.

Claims

1. A communication method, characterized in that, Comprising: Receiving multiple signals; Transmitting measurement information, where the measurement information includes information on the first-path delay of at least one of the multiple signals, or an identifier of a first signal, the first signal being the signal among the multiple signals having the smallest first-path delay.

2. The method according to claim 1, characterized in that, The measurement information includes information on the first-path delay of at least one of the multiple signals and an identifier of the at least one signal.

3. The method according to claim 2, wherein The measurement information further includes information on the first-path power of at least one of the multiple signals.

4. The method according to claim 1, wherein The measurement information includes an identifier of a first signal, and information on the first-path delay and / or first-path power of the first signal.

5. The method according to any one of claims 1 to 4, characterized in that, The information on the first-path delay indicates one of N first-path delays, where N is an integer greater than 1.

6. The method according to claim 5, wherein The N first-path delays include a first first-path delay, and the first first-path delay is a first-path delay less than 0.

7. The method according to claim 3 or 4, characterized in that, The information on the first-path power indicates one of Q first-path powers, where Q is an integer greater than 1.

8. The method according to any one of claims 1 to 7, characterized in that Before transmitting the measurement information, the method further includes: Determining the first-path delay and / or first-path power of each of the multiple signals.

9. The method according to any one of claims 1 to 8, characterized in that The multiple signals include the first signal and a second signal, and the first signal and the second signal correspond to different beam directions.

10. The method according to any one of claims 1 to 9, characterized in that The identifier of the first signal is an identifier of the beam corresponding to the first signal and / or an identifier of the resource occupied by the first signal.

11. The method according to any one of claims 1 to 10, characterized in that, The measurement information is used to determine whether sensing information is used to assist communication.

12. A communication method, characterized in that, Comprising: Transmitting multiple signals; Receiving measurement information, where the measurement information includes information on the first-path delay of at least one of the multiple signals, or an identifier of a first signal, the first signal being the signal among the multiple signals having the smallest first-path delay.

13. The method according to claim 12, wherein The measurement information includes information on the first-path delay of at least one of the multiple signals and an identifier of the at least one signal.

14. The method according to claim 12 or 13, wherein The measurement information further includes information on the first-path power of at least one of the multiple signals.

15. The method according to claim 12, wherein The measurement information includes an identifier of a first signal, and information on the first-path delay and / or first-path power of the first signal.

16. The method according to any one of claims 12 to 15, characterized in that, The information on the first-path delay indicates one of N first-path delays, where N is an integer greater than 1.

17. The method according to claim 16, wherein The N first-path delays include a first first-path delay, and the first first-path delay is a first-path delay less than 0.

18. The method according to claim 14 or 15, characterized in that, The information on the first-path power indicates one of Q first-path powers, where Q is an integer greater than 1.

19. The method according to any one of claims 12 to 18, characterized in that, The multiple signals include the first signal and a second signal, and the first signal and the second signal correspond to different beam directions.

20. The method according to any one of claims 12 to 19, characterized in that, The identifier of the first signal is an identifier of the beam corresponding to the first signal and / or an identifier of the resource occupied by the first signal.

21. The method according to any one of claims 12 to 20, characterized in that, The method further includes: Determining whether there is a direct LOS path according to the result of the measurement information.

22. The method according to claim 21, characterized in that, The method further includes: Receiving a random access response feedback, where the random access response feedback includes an index of a synchronization signal block SSB; Determining whether there is a LOS path according to the measurement information includes: Determining whether there is a LOS path according to the identifier of the first signal and the index of the SSB.

23. The method according to any one of claims 12 to 20, characterized in that The method further includes: Determine whether the perception information is used to assist communication according to the measurement information.

24. A communication device, characterized in that, The device includes a unit for performing the method according to any one of claims 1 to 11.

25. A communication device, characterized in that, The device includes a unit for performing the method according to any one of claims 12 to 23.

26. A communication system, characterized in that, Includes the communication device according to claim 24 and the communication device according to claim 25.

27. A communication device, characterized in that, Includes a processor, the processor is coupled to a memory, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions in the memory, so that the device performs the method according to any one of claims 1 to 23.

28. A computer-readable storage medium, characterized in that, A computer program or instruction is stored on the computer-readable storage medium, and when the computer program or instruction runs on a computer, the computer is caused to execute the method according to any one of claims 1 to 23.

29. A chip or chip system, characterized in that Includes: A processor for calling and running a computer program from a memory, so that a communication device equipped with the chip system performs the method according to any one of claims 1 to 23.

30. A computer program product, characterized in that, When the computer program product runs on a computer, the computer is caused to execute the method according to any one of claims 1 to 23.

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