Communication method and communication apparatus

Abstract

The present application provides a communication method, comprising: a network device sends a plurality of signals to a terminal device; the terminal device measures the plurality of signals, and then reports measurement information to the network device, wherein the measurement information comprises information about the first-path delay of at least one signal among the plurality of signals, or the identifier of the first signal, and the first signal is a signal having the smallest first-path delay among the plurality of signals. Therefore, the network device can determine, on the basis of the measurement information fed back by the terminal device, whether there is an LOS path between the terminal device and the network device, so that the network device can determine whether to use sensing information of the terminal device to enhance the communication performance with the terminal device.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 5, 2024, with application number 202410017931.6 and application name “Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and in particular to a communication method and a communication device. Background Art

[0003] Communication and perception integration is a key technology in wireless communication networks. It aims to integrate wireless communication and perception into the same system, and use the various propagation characteristics of wireless signals to achieve perception functions such as positioning, detection, imaging and identification of targets, so as to obtain information about the surrounding physical environment, tap into communication capabilities, and enhance user experience.

[0004] In the current integrated communication perception solution, network equipment is unable to determine the specific conditions of the signal transmission path between a terminal device and the network device, resulting in the network device being unable to determine whether the perceived information can be used to enhance communication performance with the terminal device. Summary of the Invention

[0005] The present application provides a communication method so that a network device can determine the communication signal transmission path between it and a terminal device. For example, the network device determines whether there is a line of sight (LOS) path between it and the terminal device, so as to determine whether the perceived information can be used to enhance the communication performance with the terminal device.

[0006] In a first aspect, a communication method is provided. The method may be executed by a terminal device, or by a chip or circuit, etc., which is not limited in this application.

[0007] The communication method includes: receiving multiple signals; sending measurement information, wherein the measurement information includes information about the first path delay of at least one signal among 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.

[0008] Based on the above technical solution, taking the execution subject as a terminal device as an example, the terminal device receives multiple signals, measures the multiple signals, and 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, so that the network device can determine the specific situation of the signal transmission path between the terminal device and the network device based on the identifier of the first signal (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 perception information of the terminal device can be used to enhance the communication performance with the terminal device; or,

[0009] The terminal device receives multiple signals, measures the signals, and then reports information, including the first path delay of at least one signal, to the network device. The network device can then determine the specific conditions of the signal transmission path between the terminal device and the network device (e.g., whether a Loss of Signal (LOS) path exists between the terminal device and the network device) based on the first path delay information of the at least one signal reported back by the terminal device. This allows the network device to determine whether the perceived information about the terminal device can be used to enhance communication performance with the terminal device.

[0010] In combination with the first aspect, in some implementations of the first aspect, the measurement information includes information about a first path delay of at least one signal among the multiple signals and an identifier of the at least one signal.

[0011] Based on the above technical solution, the terminal device reports the information of the first path delay of at least one signal among multiple signals and the identification 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 (such as, determining whether there is a LOS path between the terminal device and the network device) through the first path delay information of at least one signal reported by the terminal device and combined with its own prior information, so that the network device can determine whether the perception information of the terminal device can be used to enhance the communication performance with the terminal device.

[0012] In combination with the first aspect, in some implementations of the first aspect, the measurement information further includes information on the first path power of at least one signal among the multiple signals.

[0013] Based on the above technical solution, the terminal device further reports the information of the first path power of at least one signal among multiple signals in the measurement information, so that the network device can make judgments based on more auxiliary information when determining the specific situation of the signal transmission path between the terminal device and the network device, thereby improving the accuracy of the judgment.

[0014] In combination with the first aspect, in some implementations of the first aspect, the measurement information includes an identifier of the first signal, and information on a first path delay and / or a first path power of the first signal.

[0015] 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 the network device can make a judgment based on more auxiliary information when determining the specific situation of the signal transmission path between the terminal device and the network device, thereby improving the accuracy of the judgment.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the information on the first path delay indicates one of N types of first path delays, where N is an integer greater than 1.

[0017] Based on the above technical solution, the terminal device can quantify and feed back 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.

[0018] With reference to the first aspect, in certain implementations of the first aspect, the N types of first-path delays include a first-path delay, and the first first-path delay is a first-path delay that is less than or equal to 0.

[0019] The terminal device can perform downlink synchronization by receiving multiple synchronization signals (SSBs) and PBCH blocks 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, 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.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the information on the first-path power indicates one of Q types of first-path powers, where Q is an integer greater than 1.

[0021] Based on the above technical solution, the terminal device can quantify and feed back continuous power values ​​through the first-path power information, which can reduce the first-path power overhead of the feedback signal of the terminal device to a certain extent.

[0022] In combination with the first aspect, in some implementations of the first aspect, before sending the measurement information, the method further includes: determining a first path delay and / or a first path power of each signal in the multiple signals.

[0023] In combination with the first aspect, in some implementations of the first aspect, the multiple signals include the first signal and a second signal, and the first signal and the second signal correspond to different beam directions.

[0024] In combination with the first aspect, in some implementations of the first aspect, the identifier of the first signal may be an identifier of a beam corresponding to the first signal and / or an identifier of resources occupied by the first signal.

[0025] Based on the above technical solution, the identifier of a signal can be the identifier of the beam corresponding to the signal, or it can be the identifier of the resources occupied by the signal. This technical solution does not limit it, thereby improving the flexibility of the solution.

[0026] With reference to the first aspect, in certain implementations of the first aspect, the measurement information is used to determine whether the perception information is used to assist communication.

[0027] In a second aspect, a communication method is provided. The method can be executed by a network device, or by a chip or circuit, etc., which is not limited in this application.

[0028] The communication method includes: sending multiple signals; receiving measurement information, wherein the measurement information includes information about the first path delay of at least one signal among 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.

[0029] In combination with the second aspect, in some implementations of the second aspect, the method further includes: determining whether a LOS path exists according to the measurement information.

[0030] In combination with the second aspect, in certain implementations of the second aspect, the method further includes: receiving random access response feedback, the random access response feedback including the index of the synchronization signal block SSB; determining whether a LOS path exists based on the measurement information includes: determining whether a LOS path exists based on the identifier of the first signal and the index of the SSB.

[0031] In combination with the second aspect, in some implementations of the second aspect, the method further includes: judging the accuracy of perception based on the measurement information.

[0032] The technical effects of the method shown in the above second aspect and its possible design can refer to the technical effects in the first aspect and its possible design.

[0033] In addition, for the description related to the measurement information involved in the second aspect, reference can be made to the description of the measurement information in the first aspect, which will not be repeated here.

[0034] In a third aspect, a communication device is provided. The communication device is configured to execute the first aspect and any one of its embodiments. Specifically, the communication device includes a processor and a memory, the memory being configured to store a computer program; the processor being configured to retrieve and execute the computer program from the memory, causing the communication device to execute the first aspect and any one of its embodiments.

[0035] In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the transceiver unit may be a transceiver or an input / output interface. The processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.

[0036] In another implementation, the communication device may be a chip, chip system, or circuit in a terminal device. In this case, the transceiver unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.

[0037] In a fourth aspect, a communication device is provided. The communication device is configured to execute the second aspect and any one of its embodiments. Specifically, the communication device includes a processor and a memory, the memory being configured to store a computer program; the processor being configured to retrieve and execute the computer program from the memory, causing the network device to execute the second aspect and any one of its embodiments.

[0038] 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. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.

[0039] In another implementation, the communication device may be a chip, chip system, or circuit in a network device. In this case, the transceiver unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.

[0040] In a fifth aspect, a communication device is provided for implementing the method described in the first aspect. The device includes a transceiver unit and a processing unit, wherein the transceiver unit is used to send and receive information, and the processing unit is used to perform internal processing actions.

[0041] Specifically, the transceiver unit is configured to receive multiple signals. The transceiver unit is further configured to send measurement information, where the measurement information includes information about the first path delay of at least one signal among 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.

[0042] In combination with the fifth aspect, in certain implementations of the fifth aspect, the processing unit is configured to determine a first path delay and / or a first path power of each of the multiple signals.

[0043] The technical effects of the method shown in the above fifth aspect and its possible design can refer to the technical effects in the first aspect and its possible design.

[0044] In addition, for the description related to the measurement information involved in the fifth aspect, please refer to the description of the measurement information in the first aspect, and will not be repeated here.

[0045] In a sixth aspect, a communication device is provided for implementing the method described in the second aspect. The device includes a transceiver unit and a processing unit, wherein the transceiver unit is used to send and receive information, and the processing unit is used to perform internal processing actions.

[0046] Specifically, the transceiver unit is configured to send multiple signals. The transceiver unit is further configured to receive measurement information, where the measurement information includes information about a first path delay of at least one of the multiple signals, or an identifier of a first signal, where the first signal is a signal having a minimum first path delay among the multiple signals.

[0047] In combination with the sixth aspect, in some implementations of the sixth aspect, the processing unit is configured to determine whether a LOS path exists based on the measurement information.

[0048] In conjunction with the sixth aspect, in certain implementations of the sixth aspect, the transceiver unit is further configured to receive random access response feedback, where the random access response feedback includes an index of a synchronization signal block (SSB). The processing unit determines, based on the measurement information, whether a LOS path exists, including: determining, by the processing unit, whether a LOS path exists based on an identifier of the first signal and the index of the SSB.

[0049] In combination with the sixth aspect, in some implementations of the sixth aspect, the processing unit is further used to determine the accuracy of the perception based on the measurement information.

[0050] The technical effects of the method shown in the above sixth aspect and its possible design can refer to the technical effects in the first aspect and its possible design.

[0051] In addition, for the description related to the measurement information involved in the sixth aspect, please refer to the description of the measurement information in the first aspect, and will not be repeated here.

[0052] In a seventh aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed, the method of any one of the implementation modes of the first and second aspects is executed.

[0053] In an eighth aspect, a computer program product comprising instructions is provided, which, when executed, causes the method provided in any one of the implementations of the first and second aspects to be executed.

[0054] In the ninth aspect, a chip or chip system is provided, wherein the chip includes a processor and a communication interface, and the processor reads instructions through the communication interface to execute the method provided by any one of the implementation modes of the first and second aspects above.

[0055] Optionally, as an implementation method, the chip also includes a memory, the memory stores a computer program or instructions, and the processor is used to execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the processor is used to execute the method provided in any one of the implementation methods of the first to fourth aspects above.

[0056] In a tenth aspect, a communication system is provided, comprising the communication device of the third aspect and the communication device of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic diagram of a communication system to which the present application is applicable.

[0058] (a) to (f) in FIG2 are schematic diagrams of the perception mode.

[0059] FIG3 is a schematic diagram of communication and perception integration.

[0060] FIG4 is a schematic flowchart of a communication method provided in an embodiment of the present application.

[0061] FIG5 is a schematic diagram of multiple first signals provided in an embodiment of the present application.

[0062] FIG6 is a schematic diagram of a channel impulse response provided in an embodiment of the present application.

[0063] FIG7 is a schematic flowchart of another communication method provided in an embodiment of the present application.

[0064] FIG8 is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0065] FIG9 is a schematic diagram of another communication device provided in an embodiment of the present application.

[0066] FIG10 is a schematic diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0067] In order to facilitate understanding of the embodiments of the present application, the following explanations are made.

[0068] First, in this application, "used to indicate" can include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, but it does not mean that the indication information must include A.

[0069] The information indicated by the indication information is called information to be indicated. 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 divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending period and / or sending time of these sub-information can be predefined, for example, predefined according to the protocol, or 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, medium access control (MAC) layer signaling and physical layer signaling. Among them, MAC layer signaling, for example, includes MAC control element (CE); physical layer signaling, for example, includes downlink control information (DCI).

[0070] Second, "at least one" shown in the present application refers to one or more, and "a plurality of" refers to two or more. In addition, in the embodiments of the present application, "first", "second" and various digital numbers (for example, "#1", "#2", etc.) are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of each process below does not mean the order of execution. The execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. It should be understood that the objects described in this way can be interchanged where appropriate, so that solutions other than the embodiments of the present application can be described. In addition, in the embodiments of the present application, words such as "S410", "S420" are only for the convenience of description and are not used to limit the order of execution of steps.

[0071] Third, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0072] Fourth, the term "storage" used in the embodiments of this application may refer to storage in one or more memories. The one or more memories may be provided separately or integrated into an encoder or decoder, a processor, or a communication device. The one or more memories may also be provided in part separately and in part integrated into a decoder, a processor, or a communication device. The memory may be any type of storage medium, and this application is not limited thereto.

[0073] Fifth, the "protocol" involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems. This application does not limit this.

[0074] Sixth, in the embodiments of the present application, "under the circumstances", "when", and "if" can sometimes be used interchangeably. It should be pointed out that when the distinction between them is not emphasized, the meanings they intend to express are consistent.

[0075] Seventh, in the embodiments of this application, various terms and English abbreviations, such as radio resource control (RRC), are provided for ease of description and should not constitute any limitation on this application. This application does not exclude the possibility of defining other terms in existing or future protocols that can achieve the same or similar functions.

[0076] Eighth, the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0077] The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0078] The technical solutions of the embodiments of the present application can be applied to various communication systems. For example: fifth 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 in the present application can also be applied to future communication systems, such as the sixth 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 Internet of Things (IoT) communication system or other communication systems.

[0079] To facilitate understanding of the embodiments of the present application, a communication system applicable to the present application is first introduced with reference to FIG1 , for example.

[0080] The terminal equipment in the embodiments of the present application may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a relay station, a remote station, a remote terminal, a mobile device, a user terminal, a user equipment (UE), a terminal, a wireless communication device, a user agent, or a user device. The terminal equipment may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, a terminal device in a future evolved public land mobile network (PLMN), or a terminal device in a future Internet of Vehicles, etc., and the embodiments of the present application are not limited thereto.

[0081] For example, in the embodiments of the present application, wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear. Such as glasses, gloves, watches, clothing and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured devices that can achieve complete or partial functions without relying on smartphones. For example: smart watches or smart glasses. In addition, it can also be a portable device that only focuses on a certain type of application function and needs to be used in conjunction with other devices such as smartphones. Such as various smart bracelets and smart jewelry for vital sign monitoring.

[0082] Furthermore, in the embodiments of the present application, the terminal device may also be a terminal device in an IoT system. IoT is an important component of future information technology development. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects humans and machines, and objects and things. In the embodiments of the present application, IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrowband (NB) technology.

[0083] In addition, in an embodiment of the present application, the terminal device may also include a sensor, whose main functions include collecting data (part of the terminal device), receiving control information and downlink data from the network device, and sending electromagnetic waves to transmit uplink data to the network device.

[0084] The network device in the embodiment of the present application is a communication device with wireless transceiver functions. The network device may be a device in a radio access network (RAN) that provides wireless communication functions for terminal devices, and is called a RAN device. The device includes but is not limited to: a base station, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a home evolved NodeB (HeNB, or home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a 5G system, such as a next-generation base station (gNB) or a transmission point (TRP or TP) in an NR system, one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc.

[0085] In some deployments, the network equipment may include a centralized unit (CU), a DU, and a radio unit (RU). The CU may include a CU control plane (CP) and a CU user plane (UP), and the RU may be a combined processing of part of the physical layer processing functions of the BBU and the remote radio unit (RRU). In different systems, the CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art may understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the 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 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.

[0086] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0087] In the embodiment of the present application, the terminal device or 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 memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, for example, operating system, operating system, operating system, Operating system or Operating system, etc. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software.

[0088] In addition, various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and / or engineering techniques. The term "product" as used in this application covers computer programs that can be accessed from any computer-readable device, carrier, or medium. For example, computer-readable media include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). In addition, 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.

[0089] To facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application will first be described in detail using the communication system shown in FIG1 as an example. As shown in FIG1 , the communication system 100 may include at least one network device 101 and at least one terminal device 102 to 107. Terminal devices 102 to 107 may be mobile or fixed. Network device 101 and one or more of terminal devices 102 to 107 may communicate via wireless links. Each network device may provide communication coverage for a specific geographic area and may communicate with terminal devices within that coverage area.

[0090] Optionally, terminal devices can communicate directly with each other. For example, direct communication between terminal devices can be achieved using device-to-device (D2D) technology. As shown in Figure 1, terminal devices 105 and 106, and terminal devices 105 and 107 can communicate directly using D2D technology. Terminal devices 106 and 107 can communicate with terminal device 105 individually or simultaneously.

[0091] Terminal devices 105 to 107 may also communicate with network device 101. For example, they may communicate directly with network device 101, as shown in the figure, where terminal devices 105 and 106 may communicate directly with network device 101. They may also communicate indirectly with network device 101, as shown in FIG1 , where terminal device 107 communicates with network device 101 via terminal device 105.

[0092] Each communication device can be configured with multiple antennas. For each communication device in communication system 100, the multiple antennas configured may include at least one transmit antenna for sending signals and at least one receive antenna for receiving signals. Therefore, the communication devices in communication system 100 can communicate with each other using multi-antenna technology.

[0093] The interface between the network device and the terminal device can be a Uu interface (or air interface). Of course, in future communications, the names of these interfaces may remain unchanged, or may be replaced by other names, and this application is not limited to this. For example, the communication between the network device and the terminal device follows a certain protocol layer structure. The network layering is to send, forward, package or unpack data of the network nodes (such as network devices and terminal devices), and control the loading or unpacking of information, etc., which are completed by different hardware and software modules respectively. This can make the complex problem of communication and network interconnection simpler.

[0094] It should be understood that Figure 1 is merely a simplified schematic diagram for ease of understanding, and the communication system 100 may also include other network devices or other terminal devices (not shown in Figure 1). For example, the communication system 100 may also include core network devices. On the one hand, the access network device provides wireless access connections for terminal devices and can send data to or receive data from terminal devices. On the other hand, the access network device also has a connection with the core network device and can forward data received from the terminal device to the core network, or receive data from the core network that needs to be sent to the terminal device.

[0095] For example, the communication system 100 may further include an application function (AF) network element, which is a control plane network function provided by the operator network and is used to provide application layer information; the communication system 100 may further include a session management function (SMF) network element, which is a control plane network function provided by the operator network. In the embodiment of the present application, when the communication system 100 includes the AF network element and the SMF network element, the AF can send service-related information to the network device via the SMF.

[0096] In order to facilitate understanding of the embodiments of the present application, some basic concepts involved in the present application are briefly described.

[0097] 1. Perception: This can also be called detection, which involves detecting parameters of targets in the physical environment, such as their position and speed. The detection system can detect targets by sending sensory information and analyzing the echo signals reflected from objects.

[0098] 2. Perception signal: A signal used to perceive (or detect) a target (or object). Perception signals are also called detection signals, linear frequency modulation signals, radar signals, radar perception signals, radar detection signals, or environmental perception signals.

[0099] The sensing signal may be a pulse signal or a signal in a wireless communication system. For example, the sensing signal may be an orthogonal frequency division multiplexing (OFDM) signal obtained by modulating a specific sequence on a subcarrier. The specific sequence may be any one of the following sequences: a Zadoff-Chu sequence (ZC sequence for short), a pseudo-random sequence, a predefined sequence, etc. Pseudo-random sequences include but are not limited to the longest linear feedback shift register sequence (m-sequence for short), a Gold sequence, etc.; predefined sequences include but are not limited to random data symbols. For example, the predefined sequence may be a random data symbol modulated by quadrature phase shift keying (QPSK), 16-bit quadrature amplitude modulation (QAM), etc.

[0100] 3. Echo signal: This refers to the signal generated by the sensing signal reflecting off the target object. For example, the time delay of the echo signal relative to the sensing signal can reflect the target object's distance from the transmitter. Alternatively, the Doppler shift of the echo signal relative to the sensing signal can reflect the target object's velocity.

[0101] 4. Communication signal: A signal used for communication between communication devices, including signals transmitted between network devices and terminal devices, such as signals carried on the physical downlink shared channel (PDSCH).

[0102] 5. Coherent processing time: This refers to a period of time significantly longer than the sensing signal transmission cycle. During the coherent processing time, the transmitter sends the sensing signal multiple times in the same beam direction. The receiver receives the echo signals of the sensing signal and coherently accumulates all the echo signals received during this period to achieve sensing ranging and speed measurement. Coherent accumulation is generally achieved by performing matched filtering and Fourier transform on all the echo signals within this period.

[0103] 6. Time unit: A time domain unit that can be divided into at least one time unit. In this application, a time unit is understood to be a time domain granularity, including but not limited to: a subframe, a time slot, or a symbol. A subframe is a time unit in a communication system. The subframe length of a 3G communication system is 2ms, and the subframe length of a 4G or 5G communication system is 1ms.

[0104] 7. Communication-perception fusion signal: Also known as synaesthesia fusion signal, it indicates a signal that can be used for both communication and perception. For communication, it can be understood that the signal carries the communication data or communication reference signal sequence that needs to be transmitted between communication devices.

[0105] 8. Communication and perception integration: Aims to integrate wireless communication and perception functions into the same system, utilizing the various propagation characteristics of wireless signals to achieve perception functions such as target positioning, detection, imaging, and identification, in order to obtain information about the surrounding physical environment, tap into communication capabilities, and enhance user experience.

[0106] For example, a first device transmits a sensing signal, and a second device (or the first device) receives an echo signal reflected by an object in the environment to perform sensing. The time delay of the echo signal relative to the transmitted sensing signal reflects the distance to the object, and the Doppler shift of the echo signal relative to the transmitted sensing signal reflects the velocity of the object.

[0107] For example, depending on the sender and receiver of the sensing signal, sensing modes can be divided into single-station sensing and dual-station sensing. Single-station sensing refers to the case where the device sending the sensing signal and the device receiving the echo signal reflected by the target are the same device; dual-station sensing refers to the case where the device sending the sensing signal and the device receiving the echo signal reflected by the target are different devices.

[0108] For ease of understanding, the perception mode is briefly introduced below in conjunction with (a) to (f) in FIG. 2 .

[0109] As shown in (a) of Figure 2, the base station sends and receives the sensing mode by itself, which belongs to the above-mentioned single-station sensing; as shown in (b) of Figure 2, the terminal sends and receives the sensing mode by itself, which belongs to the above-mentioned single-station sensing; as shown in (c) of Figure 2, base station #1 sends the sensing signal, and base station #2 receives the echo signal, which belongs to the above-mentioned dual-station sensing; as shown in (d) of Figure 2, terminal #1 sends the sensing signal, and terminal #2 receives the echo signal, which belongs to the above-mentioned dual-station sensing; as shown in (e) of Figure 2, the base station sends the sensing signal, and the terminal receives the echo signal, which belongs to the above-mentioned dual-station sensing; as shown in (f) of Figure 2, the terminal sends the sensing signal, and the base station receives the echo signal, which belongs to the above-mentioned dual-station sensing.

[0110] It should be understood that FIG2 is only an example of possible ways of perceiving the mode and does not constitute any limitation on the scope of protection of the present application.

[0111] 9. Line of sight (LOS) or non-line of sight (NLOS): Electromagnetic waves propagate in a straight line, known as line-of-sight (LOS) propagation. Alternatively, electromagnetic waves reach the receiver through reflection, scattering, and diffraction, known as non-line-of-sight (NLOS) propagation. Wireless communication system propagation conditions are generally categorized as line-of-sight (LOS) and non-line-of-sight (NLOS) environments. In line-of-sight conditions, wireless signals propagate unobstructed in a straight line between the transmitter and receiver. In the presence of obstacles, wireless signals propagate between the transmitter and receiver through reflection, scattering, and diffraction.

[0112] 10. Perception-Assisted Communication: Network devices can use perceived target information to enhance the communication performance of terminal devices, a process known as perception-assisted communication. For example, network devices can use the perceived location and velocity of a terminal device to predict its location in the next time period. This eliminates the need to send reference signals to the terminal device to measure the communication quality of different beams during the next time period. Instead, the network device can directly select the optimal beam to communicate with the terminal device, reducing the overhead of sending reference signals and increasing communication capacity.

[0113] 11. Channel state information (CSI) report: In the NR communication system, the relevant indicators of the channel state information reported by the terminal include channel qualify indicator (CQI), precoding matrix indicator (PMI), CSI reference signal (CSI-RS) resource indicator (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) and other related parameters.

[0114] 12. Target: This refers to any tangible object in the environment that can reflect electromagnetic waves, such as mountains, forests, or buildings. It can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. Targets may also be referred to as perceived targets, detected targets, perceived objects, detected objects, or perceived devices, and are not limited in this embodiment.

[0115] The above describes the basic concepts that may be involved in the embodiments of this application, and introduces communication and perception integration within the basic concepts. One communication and perception integration solution is that the base station senses the position, speed, and other information of the target in the environment by sending a perception signal and receiving an echo signal reflected by the target in the environment, as shown in Figure 3. The target in the environment can be either an object in the environment (without a communication connection with the base station, such as the target in Figure 3) or a terminal device (with a communication connection with the base station, such as terminal device #1 and terminal device #2 in Figure 3).

[0116] When sensing targets in the environment, a base station can generally only detect targets with line-of-sight (LOS) to the base station, such as the environmental target and terminal device #1 in Figure 3. However, the base station is generally unable to detect targets with non-line-of-sight (NLOS) to the base station (such as terminal device #2 in Figure 3). This is because the sensing signal sent by the base station requires multiple reflections before receiving the corresponding echo signal. The received echo signal also experiences two-way path loss (one round trip and one return), resulting in significant signal loss and very weak signal strength, making it generally undetectable to the base station. Terminal devices with non-line-of-sight (NLOS) to the base station (no LOS path, only the NLOS path) can still communicate with the base station. This is because the communication link is only one-way, and the path loss is relatively low compared to perception. Therefore, terminal devices with only the NLOS path can still communicate with the base station.

[0117] It should be understood that based on the information status information measurement results reported by the existing terminal devices, the network device cannot determine whether the wireless signal between the terminal device and the network device propagates in a straight line between the network device and the terminal device without obstruction, 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.

[0118] In order to solve the problem existing in the above-mentioned integrated communication perception solution: the network device cannot determine whether the perception information can be used to enhance the communication performance with the terminal device, the present application provides a communication method, which measures the signal sent by the network device through the terminal device and reports the measurement result, so that the network device can determine the communication signal transmission path between the terminal device and the network device, so that the network device can decide whether to use the perception information to enhance the communication performance of the terminal device.

[0119] It should be understood that the communication method provided in the embodiments of the present application can be applied to a system that communicates using a multi-antenna technology, for example, the communication system 100 shown in Figure 1. The communication system may include at least one network device and at least one terminal device.

[0120] Exemplarily, the communication method provided in the embodiments of the present application can be applied to the single-station perception scenario in which the network device sends and receives signals on its own as shown in Figure 2 (a). For example, the network device transmits a perception signal or a synaesthesia fusion signal, and the network device receives an echo signal generated by the perception signal or the synaesthesia fusion signal being reflected by a target in the environment, thereby perceiving the position, speed and other information of the target.

[0121] When a network device sends a synaesthesia fusion signal for perception, the synaesthesia fusion signal carries the communication data or communication reference signal sequence that the network device wants to transmit to the terminal device. When the network device sends the perception signal, the network device can use frequency division multiplexing or space division multiplexing to simultaneously send the communication signal to communicate with the terminal device.

[0122] It should be noted that the target device and the terminal device in the environment can be the same device or different devices.

[0123] It should also be understood that the embodiments shown below do not specifically limit the specific structure of the execution subject of the method provided in the embodiments of the present application. As long as it is possible to communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application. For example, the execution subject of the method provided in 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.

[0124] FIG4 is a schematic flow chart of a communication method provided in an embodiment of the present application, comprising the following steps:

[0125] S410, sending multiple signals.

[0126] In this embodiment, sending multiple signals is equivalent to outputting multiple signals. For example, the following two possibilities may be included:

[0127] Possibility 1: The network device sends multiple signals to the terminal device.

[0128] Possibility 2: After the baseband chip or processor of the network device generates multiple signals, the multiple signals can be output to the radio frequency unit of the network device. Further, the radio frequency unit can send the multiple signals to the terminal device.

[0129] Accordingly, the terminal device receives multiple signals from the network device.

[0130] Specifically, the network device resources send M signals to the terminal device, and correspondingly, the terminal device receives M signals from the network device, where M is an integer greater than 1.

[0131] 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, subframes, etc.) and frequency domain units in the frequency domain (such as subcarriers). It should be understood that the specific definition of resources in this embodiment is not limited. You can refer to the description of the resources that carry signals between network devices and terminal devices in the current related technology, which will not be repeated here.

[0132] 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. For example, M signals are sent on M resources. The M signals can be different, partially identical, or completely identical. The same signal can be understood as the same data, signaling, or sequence carried by the signal.

[0133] For example, the network device sends signal #1 on resource #1, sends signal #2 on resource #2, and sends signal #3 on resource #3, then the terminal device receives signal #1 on resource #1, receives signal #2 on resource #2, and receives signal #3 on resource #3.

[0134] For example, if a network device sends signal #1 on resource #1 and sends signal #2 on resource #2, then a terminal device receives signal #1 on resource #1 and receives signal #2 on resource #2. Signal #1 and signal #2 are identical, e.g., they carry the same data, signaling, or sequence.

[0135] Exemplarily, each of the M signals is associated with an identifier.

[0136] 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 may be the same or different.

[0137] For another example, signal #1 among the M signals is associated with identification #1, and signal #2 and signal #3 are associated with identification #2.

[0138] Exemplarily, at least one resource among the multiple resources used to carry M signals is associated with an identifier. In other words, an identifier is used to identify at least one resource among the multiple resources. The multiple resources used to carry M signals may belong to a resource set.

[0139] For example, resource #1 is associated with identifier #1, and resource #2 is associated with identifier #2. Optionally, resource #1 carries signal #1, and resource #2 carries signal #2, and signal #1 and signal #2 are the same or different.

[0140] For another example, resource #1 is associated with identifier #1, and resource #2 and resource #3 are associated with identifier #2. Optionally, resource #1 carries signal #1, resource #2 carries signal #2, and resource #3 carries signal #3.

[0141] Exemplarily, at least one beam among the multiple beams used to transmit M signals is associated with an identifier. In other words, an identifier is used to identify at least one beam among the multiple beams.

[0142] For example, beam #1 is associated with identifier #1, and beam #2 is associated with identifier #1. Optionally, beam #1 is used to send signal #1, and beam #2 is used to send signal #2, and signal #1 and signal #2 are the same or different.

[0143] For another example, beam #1 is associated with identifier #1, and beam #2 and beam #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.

[0144] By way of example and not limitation, signals in the M signals may be sent via different beams.

[0145] 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, and the direction of beam #1 is different from the direction of beam #2.

[0146] For another example, the M signals include signal #1, signal #2, and signal #3, wherein signal #1 is transmitted through beam #1, signal #2 and signal #3 are transmitted through beam #2, and the direction of beam #1 is different from the direction of beam #2.

[0147] As an example and not limitation, signals on different resources may be sent via different beams.

[0148] For example, signal #1 carried on resource #1 is sent via beam #1, and signal #2 carried on resource #2 is sent via beam #2. The directions of beam #1 and beam #2 are different. Signal #1 and signal #2 may be the same or different.

[0149] For ease of understanding, the forms of the M signals sent by the network device are described below with reference to FIG. 5 .

[0150] As shown in Figure 5, the network device sends four signals on four resources respectively. The identifiers (IDs) associated with these four signals are 1, 2, 3, and 4 respectively, and signals associated with different identifiers are sent through different beams. As shown in Figure 5, the transmission beam directions used by these four signals are different.

[0151] As can be seen from Figure 5, the network device carries four signals on four resources, and the four signals are sent through four beams. For example, the four resources are resource #1, resource #2, resource #3 and resource #4, the four signals are signal #1, signal #2, signal #3 and signal #4, the four beams are beam #1, beam #2, beam #3 and beam #4, and the four identifiers are 1, 2, 3 and 4 respectively.

[0152] 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.

[0153] It should be noted that FIG5 is merely an example and does not constitute any limitation on the protection scope of the present application. For example, the number of signals sent by the network device may not be 4.

[0154] For example, the identifier described above may also be referred to as an index value, i.e., each of the M signals is associated with an index value. The index values ​​associated with different signals may be the same or different, and signals associated with different index values ​​are transmitted via different beams. Furthermore, a beam may also be referred to as a spatial transmission filter, spatial filter, or spatial domain filter.

[0155] Exemplarily, the network device may send first information to the terminal device before sending the M signals, where the first information is configuration information of the multiple resources.

[0156] As a possible implementation, the first information indicates at least one of a time-frequency domain resource location of a resource, a sequence used by a signal carried on the resource, and an ID of the resource. Accordingly, the terminal device receives the first information sent by the network device and determines configuration information for the resource so that the terminal device can receive signals on the multiple resources.

[0157] Optionally, the signal is SSB or CSI-RS.

[0158] 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. For another 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.

[0159] Furthermore, in this embodiment, after receiving the above-mentioned multiple signals, the terminal device may perform measurements based on the multiple signals to obtain feedback information. The method flow shown in FIG4 further includes:

[0160] S420: The terminal device determines measurement information.

[0161] In this embodiment, the measurement information determined by the terminal device can be used to determine whether the perception information is used to assist communication. For example, based on the measurement information, it can be determined whether a Loss of Segment (LOS) path exists between the terminal device and the network device, thereby determining whether the perception information about the terminal device can be used to enhance communication performance with the terminal device.

[0162] Specifically, for the M received signals, the terminal device can use the received signals to calculate the channel impulse response to determine the first path delay and / or first path power of each signal, as shown in Figure 6. 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. The path with the minimum 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 transmitted on the first path.

[0163] For example, the channel impulse response calculated from a received signal is shown in Figure 6. As shown in Figure 6, the signal sent by the network device travels through four propagation paths, with delays along each path being t0, t1, t2, and t3. Where t0 is the minimum of t0, t1, t2, and t3, it is the first-path delay of the signal.

[0164] Optionally, the terminal device calculates the channel impulse response by dividing the frequency domain sequence received on a certain resource by the sequence of signals sent by the network device resource by resource element, and performing an inverse Fourier transform on the result to obtain the channel impulse response.

[0165] As a possible implementation (hereinafter referred to as implementation #1), the measurement information includes an identifier of a first signal, where the first signal is a signal having the smallest first path delay among multiple signals. The identifier of the first signal may be an identifier of a resource carrying the first signal, or an identifier of a beam transmitting the first signal.

[0166] Specifically, in the case of implementation #1, after receiving M signals, the terminal device determines the first path delay of each of the M signals, thus determining a total of M first path delays. The terminal device then 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 first signal is the smallest first path delay among the M first path delays.

[0167] For ease of understanding, the following describes a method for determining measurement information in the case of implementation #1 with reference to a specific example:

[0168] Example 1:

[0169] As shown in Figure 5, the terminal device receives 4 signals on 4 resources (e.g., receiving signal #1 on resource #1, receiving signal #2 on resource #2, receiving signal #3 on resource #3, and receiving 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).

[0170] 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 experienced by signal #1, and record the first path delay of signal #1 as k1. 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 experienced by signal #2, and record the first path delay of signal #2 as k2. 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 experienced by signal #3, and record the first path delay of signal #3 as k3. 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 experienced by signal #4, and record the first path delay of signal #4 as k4.

[0171] The terminal device then calculates which of the four first-path delays (e.g., 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 of k1, k2, k3, and k4, the identifier to be reported can be the identifier of signal #1, the identifier of resource #1 carrying signal #1, or the identifier of beam #1 transmitting signal #1.

[0172] Optionally, the identifier of the identification signal #1 is associated with the resource #1 that carries the signal #1.

[0173] Optionally, the identification of signal #1 is associated with beam #1 that transmits signal #1.

[0174] For ease of description, the following description will be made using the example where the reported identifier is signal #1.

[0175] Optionally, when there are multiple identical first-path delays, the multiple first-path delays correspond to multiple signals, and the multiple signals have multiple first-path powers. 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 that needs to be reported. For example, 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, then the identifier that needs to be reported can be the identifier of signal #1, the identifier of resource #1 that carries signal #1, or the identifier of beam #1 that sends signal #1.

[0176] Exemplarily, in the case shown in implementation #1, the measurement information may further include: information on the first path delay and / or the first path power of the first signal.

[0177] As an example and not a limitation, the information of the first-path delay corresponding to a certain signal mentioned above may indicate one of N types of first-path delays, where N is an integer greater than 1. The certain signal may be any one of the M signals, for example, the first signal mentioned above, or at least one signal involved in the implementation method #2 below. In addition, the N types of first-path delays may be the four types of first-path delays in Table 1 below, such as, the first-path delay in Table 1 being less than or equal to 0 is one type of first-path delay, the first-path delay in Table 1 being greater than 0 and less than 30ns is another type of first-path delay, the first-path delay in Table 1 being greater than or equal to 30ns and less than 100ns is another type of first-path delay, and the first-path delay in Table 1 being greater than or equal to 100ns is another type of first-path delay.

[0178] Optionally, the N types of first-path delays include a first-path delay, and the first first-path delay is a first-path delay that is less than 0 or equal to 0.

[0179] For ease of understanding, the corresponding relationship between the information about the first-path delay and the first-path delay is described below with reference to a specific example.

[0180] Example 2:

[0181] Exemplarily, the information of the first-path delay is a bits, and the information of the first-path power is b bits, where a and b are both integers greater than 1.

[0182] For example, the information of the first path delay is 2 bits, and the corresponding relationship between the first path delay and the values ​​of the 2 bits is shown in Table 1 below.

[0183] Table 1 Correspondence between first-path delay and first-path delay

[0184] As an example and not a limitation, the information of the first path power corresponding to a certain signal mentioned above may indicate one of Q types of first path powers, where Q is an integer greater than 1. The certain signal may be any one of the M signals, for example, the first signal mentioned above, or at least one signal involved in the implementation method #2 below. In addition, the Q types of first path powers may be the 8 types of first path powers in Table 2 below, such as, the first path power less than -144dBm in Table 2 is one type of first path power, the first path power greater than or equal to -144dBm and less than -140dBm in Table 2 is another type of first path power, and the first path power greater than or equal to -140dBm and less than -136dBm in Table 2 is yet another type of first path power.

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

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

[0187] Table 2 Correspondence table of first path power and first path power information

[0188] In the case of implementation #1, the information that the terminal device can report through measurement information includes the following possibilities:

[0189] 1) The measurement information includes the identifier of the first signal, and the terminal device can report the identifier of the signal with the smallest first-path delay through the measurement information; for example, the measurement information includes the identifier of the resource carrying the first signal, and the terminal device can report the identifier of the resource carrying the signal with the smallest first-path delay through the measurement information; for another example, the measurement information includes the identifier of the beam sending the first signal, and the terminal device can report the identifier of the beam sending the signal with the smallest first-path delay through the measurement information. For example, the measurement information includes a field indicating the identifier of the first signal, such as, the identifier of the first signal is 1, and the value of the field is 1. For another example, the measurement information includes a field indicating the identifier of the resource carrying the first signal, such as, the identifier of the resource carrying the first signal is 1, and the value of the field is 1. For another example, the measurement information includes a field indicating the identifier of the beam sending the first signal, such as, the identifier of the beam carrying the first signal is 1, and the value of the field is 1.

[0190] 2) The measurement information includes the identifier of the first signal and the information of the first path delay of the first signal. The terminal device can report the identifier of the signal with the smallest first path delay and the information indicating the first path delay through the measurement information. For example, the measurement information includes the identifier of the resource carrying the first signal and the information of the first path delay of the first signal. The terminal device can report the identifier of the resource carrying the signal with the smallest first path delay and the information indicating the first path delay through the measurement information. For example, the measurement information includes the identifier of the beam sending the first signal and the information of the first path delay of the first signal. The terminal device can report the identifier of the beam sending the signal with the smallest first path delay and the information indicating the first path delay through the measurement information. For example, the measurement information includes two fields, field #1 and field #2, the field #1 indicates the identifier of the first signal, and the 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, the first path delay of the first signal is less than or equal to 0, and the value of field #2 is 00 (refer to Table 1 above). For another example, the measurement information includes two fields, field #1 and field #2, wherein 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, the first path delay of the first signal is less than or equal to 0, and the value of field #2 is 00 (refer to Table 1 above). For another example, the measurement information includes two fields, field #1 and field #2, wherein 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, the first path delay of the first signal is less than or equal to 0, and the value of field #2 is 00 (refer to Table 1 above).

[0191] 3) The measurement information includes the identifier of the first signal and the information of the first path power of the first signal. The terminal device can report the identifier of the signal with the smallest first path delay and the information indicating the first path power through the measurement information. For example, the measurement information includes the identifier of the resource carrying the first signal and the information of the first path power of the first signal. The terminal device can report the identifier of the resource carrying the signal with the smallest first path power and the information indicating the first path power through the measurement information. For another example, the measurement information includes the identifier of the beam sending the first signal and the information of the first path power of the first signal. The terminal device can report the identifier of the beam sending the signal with the smallest first path power and the information indicating the first path delay through the measurement information. For example, the measurement information includes two fields, field #1 and field #3, the field #1 indicates the identifier of the first signal, and the 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, the first path power of the first signal is less than -144dBm, and the value of field #3 is 000 (refer to Table 2 above). For another example, the measurement information includes two fields, field #1 and field #3, wherein 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, the first path power of the first signal is less than -144dBm, and the value of field #3 is 000 (refer to Table 2 above). For another example, the measurement information includes two fields, field #1 and field #3, wherein 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, the first path power of the first signal is less than -144dBm, and the value of field #3 is 000 (refer to Table 2 above).

[0192] 4) The measurement information includes the identifier of the first signal, the information of the first path delay of the first signal, and the information of the first path power of the first signal. The terminal device can report the identifier of the signal with the smallest first path delay, the information indicating the first path delay, and the information indicating the first path power through the measurement information. For example, the measurement information includes the identifier of the resource carrying the first signal, the information of the first path delay of the first signal, and the information of the first path power of the first signal. The terminal device can report the identifier of the resource carrying the signal with the smallest first path power, the information indicating the first path delay, and the information indicating the first path power through the measurement information. For another example, the measurement information includes the identifier of the beam sending the first signal, the information of the first path delay of the first signal, and the information of the first path power of the first signal. The terminal device can report the identifier of the beam sending the signal with the smallest first path power, the information indicating the first path delay, and the information indicating the first path power through the measurement information. The identifier that identifies the first signal is associated with the resource carrying the signal. In addition, the identifier that identifies the first signal is associated with the beam sending the signal. For example, the measurement information includes three fields, field #1, field #2 and field #3, where field #1 indicates the identifier of the first signal, field #2 indicates the first path delay 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, 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), and the first path power of the first signal is less than -144dBm, the value of field #3 is 000 (refer to Table 2 above). For example, the measurement information includes three fields, field #1, field #2 and field #3, where field #1 indicates the identifier of the resource carrying the first signal, field #2 indicates the first path delay of 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, 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), the first path power of the first signal is less than -144dBm, and the value of field #3 is 000 (refer to Table 2 above). For another example, the measurement information includes three fields, field #1, field #2, and field #3. Field #1 indicates the identifier of the beam sending the first signal, field #2 indicates the first path delay of the first signal, and field #3 indicates the first path power of the first signal. For example, if the identifier of the beam sending the first signal is 1, the value of field #1 is 1, 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), the first path power of the first signal is less than -144dBm, and the value of field #3 is 000 (refer to Table 2 above).

[0193] As another possible implementation manner (hereinafter referred to as implementation manner #2), the measurement information includes information on the first path delay of at least one signal among the multiple signals.

[0194] For example, the terminal device calculates the first-path delay and first-path power of M received signals. The first-path delay and first-path power of a particular signal can be obtained by calculating the channel impulse response, which 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.

[0195] For example, a channel impulse response calculated from a received signal is shown in FIG6 . As can be seen from FIG6 , the first path delay is t0 and the first path power is the power corresponding to the transmission path with the delay t0.

[0196] Optionally, the measurement information includes information about the first path delay of a certain signal among the M signals.

[0197] For example, the M first-path delays of the M signals are: first-path delay #1, first-path delay #2, first-path delay #3, ..., first-path delay #M. The measurement information includes information indicating first-path delay #1. Optionally, first-path delay #1 satisfies a preset condition (e.g., the terminal device determines that the reported first-path delay is less than a preset value of the first-path delay, where the preset value is predefined by the protocol or negotiated between the terminal device and the network, and this embodiment does not impose any limitation on the preset value).

[0198] Optionally, the measurement information includes information about first path delays of multiple signals among the M signals.

[0199] For example, the M first-path delays of M signals are: first-path delay #1, first-path delay #2, first-path delay #3, ..., first-path delay #M. The measurement information includes information indicating first-path delay #1 and information indicating first-path delay #2. Optionally, first-path delay #1 and first-path delay #2 meet a preset condition.

[0200] Optionally, the measurement information includes information about first path delays of M signals among the M signals.

[0201] For example, the M first-path delays of M signals are: first-path delay #1, first-path delay #2, first-path delay #3, ..., first-path delay #M. The measurement information includes first-path delay #1, first-path delay #2, first-path delay #3, ..., first-path delay #M.

[0202] Exemplarily, the measurement information may be a list including at least one element, wherein one of the at least one element indicates the first path delay of one of the at least one signal. Each element in the list includes one field indicating delay information. For example, the measurement information includes two elements, element #1 and element #2. Element #1 includes one field indicating the first path delay of signal #1, and element #2 also includes one field indicating the first path delay of signal #2.

[0203] Optionally, in the case shown in implementation #2, the measurement information may further include an identifier of at least one signal. Specifically, the measurement information includes information about the first path delay of the at least one signal and the identifier of the at least one signal. The first path delay information of each of the at least one signal in the measurement information is bound to its identifier. The signal identifier may be an identifier of the resource carrying the signal or an identifier of the beam transmitting the signal.

[0204] For example, the measurement information includes the information of the first path delay of signal #1 and the identification of signal #1, as well as the information of the first path delay of signal #2 and the identification of signal #2.

[0205] For another example, the measurement information includes information about the first path delay of signal #1 and an identifier of a resource carrying signal #1, and information about the first path delay of signal #2 and an identifier of a resource carrying signal #2.

[0206] For another example, the measurement information may also include information about the first path delay of signal #1 and the identifier of the beam that transmits signal #1, as well as information about the first path delay of signal #2 and the identifier of the beam that transmits signal #2.

[0207] Exemplarily, the measurement information may be a list including at least one element, wherein one of the at least one element indicates an identifier and a first path delay of one of the at least one signal. Each element in the list includes two fields, one indicating the identifier and the other indicating 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 identifier 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 identifier of signal #2, and the other field indicates the first path delay of signal #2; for another example, the measurement information includes two elements, element #1 and element #2, element #1 includes two fields, one field indicates the identifier 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 identifier of the resource carrying signal #2, and the other field indicates the first path delay of signal #2; for another example, the measurement information includes two elements, element #1 and element #2, element #1 includes two fields, one field indicates the identifier of the beam sending signal #1, and the other field indicates the first path delay of signal #1, element #2 also includes two fields, one field indicates the identifier of the beam sending signal #2, and the other field indicates the first path delay of signal #2.

[0208] Optionally, in the case shown in implementation #2, the measurement information may further include information about the first path power of at least one signal. Specifically, the measurement information includes information about the first path delay of at least one signal and information about the first path power of the at least one signal, wherein the first path delay information of each signal in the at least one signal in the measurement information is bound to its first path power; or,

[0209] Specifically, the measurement information includes information about the first path delay of at least one signal, information about the first path power of the at least one signal, and an identifier of the at least one signal. In the measurement information, the first path delay information of each of the at least one signal is bound to its identifier and first path power.

[0210] For example, the measurement information includes information on the first path delay of signal #1 and information on the first path power of signal #1, and information on the first path delay of signal #2 and information on the first path power of signal #2.

[0211] Exemplarily, the measurement information may be a list including at least one element, wherein one of the at least one element indicates the first path power and first path delay of one of the at least one signal. Each element in the list includes two fields, one field indicating the first path power and the other field indicating delay information. For example, the measurement information includes two elements, element #1 and element #2, where element #1 includes two fields, one field indicating the first path power of signal #1 and the other field indicating the first path delay of signal #1. Element #2 also includes two fields, one field indicating the first path power of signal #2 and the other field indicating the first path delay of signal #2.

[0212] For example, the measurement information includes information on the first path delay of signal #1, information on the first path power of signal #1, and the identification of signal #1; and information on the first path delay of signal #2, information on the first path power of signal #2, and the identification of signal #2.

[0213] Exemplarily, the measurement information is a list, which includes at least one element, and one of the at least one elements indicates the identifier, first path power, and first path delay of one of the at least one signal. Each element in the list includes three fields, one field indicating the first path power, another field indicating the delay information, and another field indicating the identifier. For example, the measurement information includes two elements, element #1 and element #2, element #1 includes three fields, one field indicating the first path power of signal #1, another field indicating the first path delay of signal #1, and another field indicating the identifier of signal #1, and element #2 also includes three fields, one field indicating the first path power of signal #2, another field indicating the first path delay of signal #2, and another field indicating the identifier of signal #2. For another example, measurement information includes two elements, element #1 and element #2. Element #1 includes three fields: one field indicating the first path power of signal #1, another field indicating the first path delay of signal #1, and another field indicating the identifier of the resource carrying signal #1. Element #2 also includes three fields: one field indicating the first path power of signal #2, another field indicating the first path delay of signal #2, and another field indicating the identifier of the resource carrying signal #2. For another example, measurement information includes two elements, element #1 and element #2. Element #1 includes three fields: one field indicating the first path power of signal #1, another field indicating the first path delay of signal #1, and another field indicating the identifier of the beam transmitting signal #1. Element #2 also includes three fields: one field indicating the first path power of signal #2, another field indicating the first path delay of signal #2, and another field indicating the identifier of the beam transmitting signal #2.

[0214] For ease of understanding, a method for determining measurement information in the case of implementation #2 is described below with reference to a specific example:

[0215] Example 3:

[0216] As shown in Figure 5, the terminal device receives 4 signals on 4 resources (e.g., receiving signal #1 on resource #1, receiving signal #2 on resource #2, receiving signal #3 on resource #3, and receiving 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).

[0217] First, based on signal #1 received on resource #1, the terminal device can calculate channel impulse response #1 and obtain the delay and power of each propagation path traversed by signal #1. The first path delay of signal #1 is denoted as t1, and the first path power is denoted as p1. Based on signal #2 received on resource #2, the terminal device can calculate channel impulse response #2 and obtain the delay and power of each propagation path traversed by signal #2. The first path delay of signal #2 is denoted as t2, and the first path power is denoted as p2. Based on signal #3 received on resource #3, the terminal device can calculate channel impulse response #3 and obtain the delay and power of each propagation path traversed by signal #3. The first path delay of signal #3 is denoted as t3, and the first path power is denoted as p3. Based on signal #4 received on resource #4, the terminal device can calculate channel impulse response #4 and obtain the delay and power of each propagation path traversed by signal #4. The first path delay of signal #4 is denoted as t4, and the first path power is denoted as p4.

[0218] The terminal device then determines the measurement information.

[0219] 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; as well as 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; as well as 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; as well as 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.

[0220] For another example, the measurement information includes at least one of information on the first path delay of signal #1, information on the first path delay of signal #2, information on the first path delay of signal #3, and information on the first path delay of signal #4.

[0221] For another example, the measurement information includes information about the first path delay of signal #1 and an identifier of signal #1.

[0222] For another example, the measurement information includes information about the first-path delay of signal #1, an identifier of signal #1, and information about the first-path power of signal #1.

[0223] Furthermore, after determining the above measurement information, the terminal device may report the measurement information to the network device. Then, the method flow shown in FIG4 further includes:

[0224] S430: Send measurement information.

[0225] In this embodiment, sending measurement information is equivalent to outputting measurement information. For example, it may include the following two possibilities:

[0226] Possibility 1: The terminal device sends the measurement information to the network device.

[0227] Possibility 2: After the baseband chip or processor of the terminal device calculates and determines the measurement information, the measurement information may be output to the radio frequency unit of the terminal device. Further, the radio frequency unit may send the measurement information to the network device.

[0228] Correspondingly, the network device receives measurement information from the terminal device.

[0229] It should be understood that this embodiment does not impose any limitation on the manner in which the terminal device sends the measurement information to the network device, and mainly relates to the content included in the measurement information.

[0230] Optionally, before the terminal device executes steps S420 and S430, the network device sends a measurement request to the terminal device, triggering the terminal device to measure the received signal. The terminal determines measurement information based on the measurement request and sends the measurement information to the network device.

[0231] Optionally, the measurement information is carried in message 3 of the random access response.

[0232] S440: The network device determines the specific conditions of the signal transmission path.

[0233] Exemplarily, in this embodiment, after the network device receives the measurement information reported by the terminal device, it can determine the specific situation of the signal transmission path between the terminal device and the network device based on the measurement information (such as, determining whether there is a LOS path between the terminal device and the network device), so that the network device can determine whether the perception information of the terminal device can be used to enhance the communication performance with the terminal device.

[0234] As a possible implementation manner, the measurement information reported by the terminal device includes an identifier of the first signal.

[0235] In this implementation, 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 a priori information of the network device.

[0236] For example, the prior information of the network device includes the SSB index of the random access response feedback of the terminal device (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 one 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.

[0237] As another possible implementation manner, the measurement information reported by the terminal device includes information on the first path delay of at least one signal among the multiple signals.

[0238] 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 information of the first path delay of at least one signal.

[0239] For example, the information on the first path delay of at least one signal reported by the terminal device can be understood as a fingerprint information. The network device can use machine learning, artificial intelligence and other algorithms to predict whether the communication connection between the terminal device and the network device is a LOS path based on at least one measurement result, and determine whether the network device will use the perception information to assist the communication of the terminal device based on the prediction result.

[0240] In the communication method shown in Figure 4, the terminal device reports the measurement information of the signal sent by the network device, so that the network device can determine whether the communication connection between the terminal device and the network device is a LOS path. Once the network device determines whether the communication connection between the terminal device and the network device is a LOS path, the network device can determine whether to use perception information to assist communication and enhance the communication performance between the terminal device and the network device.

[0241] For ease of understanding, the communication method shown in FIG. 4 is described below with reference to a specific example.

[0242] FIG7 is a schematic flow chart of another communication method provided by the present application, comprising the following steps:

[0243] S710: The network device obtains perception information of the terminal device.

[0244] In this embodiment, the network device can determine the signal transmission path between the network device and the terminal device, for example, whether there is a LOS path between the network device and the terminal device, and further determine whether the perception information can assist the communication between the network device and the terminal device, thereby enhancing the communication performance between the terminal device and the network device.

[0245] Specifically, the network device may determine the signal transmission path between the network device and the terminal device through the communication process shown in FIG4 , and the method process shown in FIG7 may further include:

[0246] S711, the network device sends first information to the terminal device.

[0247] Optionally, the network device indicates resources for transmitting the signal through the first information.

[0248] S712: The network device sends multiple signals to the terminal device.

[0249] Please refer to the description of step S410 in FIG4 , which will not be repeated here.

[0250] S713: The network sends a measurement request to the terminal device.

[0251] Optionally, the network device triggers the terminal device to measure the received signal through a measurement request.

[0252] S714: The terminal device determines the measurement information.

[0253] S715: The terminal device sends measurement information to the network device.

[0254] S716: The network device determines the specific conditions of the signal transmission path.

[0255] For steps S714 to S716 , reference may be made to the description of steps S420 to S440 in FIG. 4 , which will not be repeated here.

[0256] Exemplarily, if the measurement information includes the identifier of the first signal, the specific circumstances in which the network device determines the signal transmission path shown in the above step S716 include: the network device can determine whether the communication connection between the terminal device and the network device is a LOS path based on the identifier of the first signal and the network device's prior information.

[0257] For example, the method flow shown in FIG7 further includes:

[0258] S717: The network device receives a random access response feedback from the terminal device.

[0259] The random access response feedback includes the index of the synchronization signal block SSB.

[0260] S718: The network device determines whether a LOS path exists according to the identifier of the first signal and the index of the SSB.

[0261] It should be noted that there is no limitation on the sequence of the above-mentioned steps S710 and steps S711 to S716. The network device can first obtain the perception information, and then determine the specific situation of the signal transmission path to determine whether the perception information can be used to assist communication; or, the network device can first determine the specific situation of the signal transmission path, and then directly determine whether the perception information can be used to assist communication after subsequently obtaining the perception information.

[0262] It should also be noted that Figure 7 is only an example and does not constitute any limitation on the scope of protection 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 where it is necessary to judge the situation of the signal transmission path.

[0263] It should be understood that the size of the serial numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0264] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0265] It should also be understood that in some of the above embodiments, the devices in the existing network architecture are mainly used as examples for illustrative description (such as network devices, terminal devices, etc.), and it should be understood that the embodiments of the present application are not limited to the specific form of the devices. For example, devices that can achieve the same functions in the future are applicable to the embodiments of the present application.

[0266] It is understandable that in the above-mentioned various method embodiments, the methods and operations implemented by devices (such as network devices, terminal devices) can also be implemented by components of the devices (such as chips or circuits).

[0267] The communication method provided in the embodiments of the present application is described in detail above in conjunction with FIG4 . The communication method is primarily described from the perspective of interaction between a terminal device and a network device. It is understood that, in order to implement the above functions, the terminal device and the network device include hardware structures and / or software modules corresponding to the respective functions.

[0268] Those skilled in the art should be aware that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0269] The communication device provided in this application is described in detail below with reference to Figures 8 to 10. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, reference can be made to the method embodiment above. For the sake of brevity, some contents will not be repeated.

[0270] In the embodiment of the present application, the functional modules of the transmitting device or the receiving device can be divided according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module according to each function.

[0271] Figure 8 is a schematic block diagram of a communication device 10 provided in an embodiment of the present application. The device 10 includes a transceiver module 11 and a processing module 12. The transceiver module 11 can implement corresponding communication functions, and the processing module 12 is used to process data. In other words, the transceiver module 11 is used to perform operations related to receiving and sending, and the processing module 12 is used to perform operations other than receiving and sending. The transceiver module 11 can also be referred to as a communication interface or a communication unit.

[0272] Optionally, the device 10 may further include a storage module 13, which may be used to store instructions and / or data. The processing module 12 may read the instructions and / or data in the storage module so that the device implements the actions of the devices in the aforementioned method embodiments.

[0273] In one design, the apparatus 10 may correspond to the terminal device in the above method embodiment, or a component (such as a chip) of the terminal device.

[0274] The device 10 can implement the steps or processes executed by the terminal device in the above method embodiment, wherein the transceiver module 11 can be used to execute the transceiver-related operations of the terminal device in the above method embodiment, and the processing module 12 can be used to execute the processing-related operations of the terminal device in the above method embodiment.

[0275] In one possible implementation, the transceiver module 11 is configured to receive multiple signals. The transceiver module 11 is configured to send measurement information, where the measurement information includes information about a first path delay of at least one of the multiple signals, or an identifier of a first signal having a minimum first path delay among the multiple signals.

[0276] When the device 10 is used to execute the method in FIG4 , the transceiver module 11 may be used to execute the steps of sending and receiving information in the method, such as steps S410 and S430 ; the processing module 12 may be used to execute the processing steps in the method, such as step S420 .

[0277] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0278] In another design, the apparatus 10 may correspond to the network device in the above method embodiment, or a component (such as a chip) of the network device.

[0279] The device 10 can implement the steps or processes executed by the network device in the above method embodiment, wherein the transceiver module 11 can be used to perform the transceiver-related operations of the network device in the above method embodiment, and the processing module 12 can be used to perform the processing-related operations of the network device in the above method embodiment.

[0280] In one possible implementation, the transceiver module 11 is configured to send multiple signals. The transceiver module 11 is configured to receive measurement information, where the measurement information includes information about a 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.

[0281] When the device 10 is used to execute the method in FIG4 , the transceiver module 11 may be used to execute the steps of sending and receiving information in the method, such as steps S410 and S430 ; the processing module 12 may be used to execute the processing steps in the method, such as step S440 .

[0282] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0283] It should also be understood that the device 10 here is embodied in the form of a functional module. The term "module" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 10 may be specifically the mobile management network element in the above-mentioned embodiment, and may be used to execute the various processes and / or steps corresponding to the mobile management network element in the above-mentioned method embodiments; or, the device 10 may be specifically the terminal device in the above-mentioned embodiment, and may be used to execute the various processes and / or steps corresponding to the terminal device in the above-mentioned method embodiments. To avoid repetition, it will not be described here.

[0284] The apparatus 10 of each of the above-described solutions has the function of implementing the corresponding steps performed by the devices (such as terminal devices and network devices) in the above-described methods. This function can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above-described functions; for example, the transceiver module can be replaced by a transceiver (for example, the transmitting 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 perform the transceiver operations and related processing operations in each method embodiment.

[0285] In addition, the transceiver module 11 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing module may be a processing circuit.

[0286] FIG9 is a schematic diagram of another communication device 20 provided in an embodiment of the present application. Device 20 includes a processor 21, which is configured to execute computer programs or instructions stored in memory 22, or read data / signaling stored in memory 22, to perform the methods described in the above method embodiments. Optionally, there may be one or more processors 21.

[0287] Optionally, as shown in FIG9 , the apparatus 20 further includes a memory 22 for storing computer programs or instructions and / or data. The memory 22 may be integrated with the processor 21 or may be separately provided. Optionally, there may be one or more memories 22 .

[0288] Optionally, as shown in Figure 9, the device 20 further includes a transceiver 23, which is used to receive and / or send signals. For example, the processor 21 is used to control the transceiver 23 to receive and / or send signals.

[0289] As a solution, the apparatus 20 is used to implement the operations performed by the terminal device in each of the above method embodiments.

[0290] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0291] 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 read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following 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 RAM (DR RAM).

[0292] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0293] It should also be noted that the memory described herein is intended to comprise, but not be limited to, these and any other suitable types of memory.

[0294] 10 is a schematic diagram of a chip system 30 provided in an embodiment of the present application. The chip system 30 (or also referred to as a processing system) includes a logic circuit 31 and an input / output interface 32.

[0295] The logic circuit 31 may be a processing circuit in the chip system 30. The logic circuit 31 may be coupled to a storage unit and call instructions in the storage unit so that the chip system 30 can implement the methods and functions of the various embodiments of the present application. The input / output interface 32 may be an input / output circuit in the chip system 30, outputting information processed by the chip system 30 or inputting data or signaling information to be processed into the chip system 30 for processing.

[0296] As a solution, the chip system 30 is used to implement the operations performed by the terminal device in the above various method embodiments.

[0297] For example, the logic circuit 31 is used to implement the processing-related operations performed by the terminal device in the above method embodiment; the input / output interface 32 is used to implement the sending and / or receiving-related operations performed by the terminal device in the above method embodiment.

[0298] An embodiment of the present application further provides a computer-readable storage medium on which computer instructions for implementing the methods executed by the device in the above-mentioned method embodiments are stored.

[0299] For example, when the computer program is executed by a computer, the computer can implement the methods executed by the terminal device or the network device in each embodiment of the above method.

[0300] An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by a terminal device or a network device in the above-mentioned method embodiments.

[0301] An embodiment of the present application also provides a communication system, including the aforementioned terminal device and network device.

[0302] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

[0303] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0304] Those skilled in the art will 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 aforementioned method embodiments and will not be repeated here.

[0305] In the 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 schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0306] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0307] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0308] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0309] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that Comprising: 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, the first signal being the signal among the multiple signals having the smallest first-path delay.

2. The method according to claim 1, 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.

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, the first first-path delay being 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 sending the measurement information, the method further includes: Determining the first-path delay and / or first-path power of each signal among 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, the first signal and the second signal corresponding 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 the identifier of the beam corresponding to the first signal and / or the identifier of the resources 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: Sending 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, 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.

14. The method according to claim 12 or 13, characterized in that, 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, the first first-path delay being 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, the first signal and the second signal corresponding 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 the identifier of the beam corresponding to the first signal and / or the identifier of the resources 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, wherein 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 apparatus includes a unit for performing the method according to any one of claims 1 to 11.

25. A communication device, characterized in that, The apparatus 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 apparatus 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. 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 a chip system, characterized in that, Includes: A processor, configured to call and run 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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