Communication method and apparatus

Abstract

A communication method and apparatus. The method comprises: a first apparatus receiving first information, which is used for determining at least one sampling point, wherein the at least one sampling point is associated with one or more regions of interest; and the first apparatus sending second information, which indicates a sensing measurement result corresponding to the at least one sampling point. By means of the method, a region of interest can be associated with a sensing measurement result fed back by a first apparatus, such that the sensing measurement result can be used for positioning a sensing object in the region of interest.

Description

Communication method and apparatus

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202411377907.X, filed on September 27, 2024, and titled “A Communication Method and Apparatus”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular, to a communication method and apparatus. BACKGROUND

[0004] Wireless sensing technology can obtain the characteristics of the signal propagation space by analyzing the changes of wireless signals in the propagation process, thereby achieving the perception of the scene. Taking radar as an example, the basic principle is that the transmitter transmits a specific waveform signal, which can be transmitted to the receiver through the wireless channel. By combining the transmitted signal and the received signal, the target of interest in the wireless channel can be extracted, thereby achieving wireless sensing.

[0005] Wireless communication can be used to exchange information between the transmitting end and the receiving end. The basic principle includes that the transmitter transmits a specific waveform signal, which is received by the receiver after passing through the wireless channel. After signal processing by the receiver, the signal transmitted by the transmitter is demodulated.

[0006] From the process of transmitting signals, transmitting signals, and receiving signals, it can be seen that the processes of wireless communication and wireless sensing are very similar. Therefore, the combination of wireless communication and wireless sensing can be used to communicate between the transmitting end and the receiving end while sensing the surrounding environment. Specifically, the sensing signal can be transmitted on the frequency domain resource, which can be used to carry the information exchanged between the transmitting end and the receiving end, and also can be used to sense the objects in the surrounding environment.

[0007] In a cellular network, how to feed back the sensing measurement result needs further research. SUMMARY

[0008] The present application provides a communication method and apparatus for feeding back the sensing measurement result.

[0009] In a first aspect, an embodiment of the present application provides a communication method, which can be applied to a first device. The first device can be a terminal or an access network device, or can be a device (e.g., a module, a communication module, a circuit or a chip responsible for communication functions and / or sensing functions (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), a chip system or a processor) of a terminal or an access network device, or can be a logical node, a logical module or software capable of realizing all or part of the functions of a terminal or an access network device. For ease of description, the following will be described by taking the first device as an example. The method can include: the first device receiving first information, the first information being used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; and the first device sending second information, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

[0010] Through the method, the first device can determine the at least one sampling point associated with the one or more regions of interest according to the first information, and feed back the sensing measurement result corresponding to the at least one sampling point. In this way, the sensing measurement result fed back by the first device can be associated with the region of interest, and thus can be used for positioning a sensing target in the region of interest.

[0011] In a second aspect, an embodiment of the present application provides a communication method, which can be applied to a second device. The second device can be a sensing management function or a device containing a sensing management function. The device containing a sensing management function can be a terminal or an access network device, or can be a module, a communication module, a circuit or a chip responsible for communication functions and / or sensing functions (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor of a terminal or an access network device, or can be a logical node, a logical module or software capable of realizing all or part of the functions of a terminal or an access network device, or can be a device independent of a terminal or an access network device. For ease of description, the following will be described by taking the second device as an example. The method can include: the second device sending first information, the first information being used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; and the second device receiving second information, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

[0012] Through the method, the second device can send the first information, which can be used to determine the at least one sampling point associated with the one or more regions of interest, and thus can receive the sensing measurement result corresponding to the at least one sampling point. In this way, the sensing measurement result received by the second device can be associated with the region of interest, and thus can be used for positioning a sensing target in the region of interest.

[0013] In a possible design of the first aspect or the second aspect, the one or more regions of interest are regions where the object to be measured is located; and / or, the one or more regions of interest are regions to be measured. By this design, the second device can accurately determine the one or more regions of interest.

[0014] In a possible design of the first aspect or the second aspect, the at least one sampling point associated with the one or more regions of interest can include: the at least one sampling point belongs to at least one sampling window, and the at least one sampling window is a sampling window (hereinafter referred to as a second sampling window) associated with the one or more regions of interest. By this design, the first device can accurately determine the at least one sampling point according to the second sampling window, and thus can acquire and feed back the perception measurement result related to the one or more regions of interest according to the at least one sampling point. In addition, in this design, the second sampling window is associated with the one or more regions of interest; accordingly, the second device can determine a sampling window for the one or more regions of interest. In this way, the second device can indicate only one sampling window to the first device for the one or more regions of interest, without indicating the sampling window corresponding to each region of interest respectively, thereby reducing signaling overhead.

[0015] In a possible design of the first aspect or the second aspect, the at least one sampling window associated with the one or more regions of interest can include: a size of the one sampling window is associated with d max1 and d min1 ; and / or, an offset of a starting position of the one sampling window relative to a reference sampling point is associated with d min1 and d ref . Wherein, d max1 is a maximum value of d i , d min1 is a minimum value of d i , is a distance between a point P i in the one or more regions of interest and a transmitting device of the perception signal, is a distance between the point P i in the one or more regions of interest and a receiving device of the perception signal, and d ref is a distance between the transmitting device and the receiving device. By this design, the second device can accurately determine the size of the one sampling window according to d max1 and d min1 ; and / or, accurately determine the offset of the starting position of the one sampling window relative to the reference sampling point according to d min1 and d ref , thereby accurately determining the one sampling window.

[0016] In a possible design based on the first aspect or the second aspect, the size W of the one sampling window satisfies one of the following formulas: length1

[0017]

[0018] In a possible design based on the first aspect or the second aspect, the offset W of the starting position of the one sampling window relative to the reference sampling point satisfies one of the following formulas: offset1

[0019]

[0020] where c is the speed of light, Δt is the time interval between adjacent sampling points of the channel impulse response, represents a rounding-up operation, represents a rounding-down operation, and round() represents a rounding operation.

[0021] With this design, the second device can accurately determine W length1 and / or W offset1 .

[0022] In a possible design based on the first aspect or the second aspect, the at least one sampling point associated with the one or more regions of interest can include: the at least one sampling point belongs to at least one sampling window, and each sampling window of the at least one sampling window is associated with one region of interest of the one or more regions of interest. In this design, the at least one sampling point belongs to the at least one sampling window associated with the one or more regions of interest, so that the first device can accurately determine the at least one sampling point according to the at least one sampling window, and thus can obtain and feed back the perception measurement result related to the one or more regions of interest according to the at least one sampling point. In addition, in this design, each region of interest can be associated with one sampling window, so that the sampling points in the sampling window are all associated with the region of interest. The first device can only report the perception measurement result corresponding to the sampling point associated with the region of interest, and can not report the perception measurement result corresponding to the sampling point not associated with the region of interest, thereby saving the transmission overhead of the perception measurement result.

[0023] In a possible design based on the first aspect or the second aspect, the at least one sampling window includes a first sampling window. The size of the first sampling window is associated with d max2 and d min2 ; and / or the offset of the starting position of the first sampling window relative to the reference sampling point is associated with d min2 and d​​​​ref is a maximum value of d max2 j is a minimum value of d min2 j is a minimum value of d is a distance between point P j and the transmitting device of the perception signal, is a distance between point P j and the receiving device of the perception signal, the first interested region is one or more interested regions associated with the first sampling window, d ref is a distance between the transmitting device and the receiving device. With this design, the second device can accurately determine the size of the first sampling window according to d max2 and d min2 , and / or accurately determine the offset of the start position of the first sampling window relative to the reference sampling point according to d min2 and d ref , so as to accurately determine the first sampling window.

[0024] Based on the first aspect or the second aspect, in a possible design, the size W length2 of the first sampling window satisfies one of the following formulas:

[0025] or

[0026] and / or the offset W offset2 of the start position of the first sampling window relative to the reference sampling point satisfies one of the following formulas:

[0027] or

[0028] where c is the speed of light, Δt is a time interval between adjacent sampling points of the channel impulse response, denotes a ceiling operation, denotes a floor operation, and round() denotes a rounding operation.

[0029] With this design, the second device can accurately determine W length2 and / or W offset2

[0030] Based on the first aspect or the second aspect, in a possible design, the first information used to determine at least one sampling point can include at least one of the following:

[0031] ​​1、the first information indicates at least one sampling window, and the at least one sampling point comprises all sampling points in the at least one sampling window. In this way, the first device can accurately determine the at least one sampling window according to the first information, and thus can accurately determine the at least one sampling point according to the at least one sampling window.

[0032] 2、the first information indicates at least one sampling window and a first bit map, and the first bit map indicates whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window. In this way, the first device can accurately determine the at least one sampling window and the first bit map according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window and the first bit map. In addition, the first bit map can indicate whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window, and thus the first device can not feed back the perception measurement result corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result. Furthermore, in the case that the at least one sampling window is one sampling window associated with one or more regions of interest, the first bit map can indicate to feed back the perception measurement result corresponding to the sampling point associated with the one or more regions of interest in the one sampling window, and not to feed back the perception measurement result corresponding to the sampling point not associated with the one or more regions of interest in the one sampling window, thereby making the feedback perception measurement result related to the one or more regions of interest.

[0033] 3、the first information indicates at least one sampling window, and the at least one sampling point comprises the sampling point in the at least one sampling window whose corresponding perception measurement result is greater than a first threshold. In this way, the first device can accurately determine the at least one sampling window according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window and the first threshold. In addition, since the at least one sampling point comprises the sampling point in the at least one sampling window whose corresponding perception measurement result is greater than the first threshold, the first device can not feed back the perception measurement result corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result.

[0034] 4、The first information indicates at least one sampling window and a second bitmap, and the second bitmap indicates whether to feed back a corresponding perception measurement result of each group of sampling points in the at least one group of sampling points, and the at least one group of sampling points belongs to the at least one sampling window. In this way, the first device can accurately determine the at least one sampling window and the second bitmap according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window and the second bitmap. In addition, the second bitmap indicates whether to feed back the corresponding perception measurement result of each group of sampling points in the at least one group of sampling points, and therefore, the first device can not feed back the corresponding perception measurement result of all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result. In addition, the design can indicate whether to feed back the corresponding perception measurement result of each group of sampling points in groups, and therefore, in the case that the sampling points to be fed back the perception measurement result are sparse, the design does not need to explicitly indicate whether to feed back the corresponding perception measurement result of each sampling point, thereby reducing the signaling overhead.

[0035] Based on the first aspect or the second aspect, in a possible design, in the case that the second bitmap indicates to feed back the corresponding perception measurement result of a first group of sampling points in the at least one group of sampling points, the first information further indicates a third bitmap, and the third bitmap indicates whether to feed back the corresponding perception measurement result of each sampling point in the first group of sampling points. Through the design, the first device can accurately determine the at least one sampling window, the second bitmap and the third bitmap according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window, the second bitmap and the third bitmap. In addition, in the design, the second bitmap indicates whether to feed back the corresponding perception measurement result of each group of sampling points in the at least one group of sampling points, and in the case that the second bitmap indicates to feed back the corresponding perception measurement result of the first group of sampling points in the at least one group of sampling points, the third bitmap indicates whether to feed back the corresponding perception measurement result of each sampling point in the first group of sampling points. In this way, the first device can not feed back the corresponding perception measurement result of all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result.

[0036] Based on the first aspect or the second aspect, in a possible design, the first information indicates the at least one sampling window, including: the first information indicates at least one of the following: an offset of a reference position of each sampling window in the at least one sampling window relative to a reference sampling point, a size of each sampling window in the at least one sampling window, or a period of each sampling window in the at least one sampling window. Through the design, the first device can accurately determine the at least one sampling window according to the first information.

[0037] In a possible design based on the first aspect or the second aspect, the first information further indicates a type of the reference sampling point, and the type of the reference sampling point includes at least one of: a sampling point corresponding to a direct view diameter, a sampling point corresponding to a strongest perceived measurement result, or a sampling point agreed by a common clock. With this design, the first device can accurately determine the type of the reference sampling point according to the first information, and thus can accurately determine the reference sampling point and determine the at least one sampling window according to the reference sampling point.

[0038] In a possible design based on the first aspect or the second aspect, the first information further indicates a sampling frequency of the channel impulse response. With this design, the first device can accurately determine a time interval between adjacent sampling points of the channel impulse response according to the sampling frequency of the channel impulse response indicated by the first information, and thus can accurately determine time information corresponding to the at least one sampling point according to the first information.

[0039] In a possible design based on the first aspect or the second aspect, the second information includes: time information corresponding to the reference sampling point corresponding to the at least one sampling point, and at least one of: an index of each sampling point in the at least one sampling point; a fourth bit map indicating whether to feed back a perceived measurement result corresponding to a sampling point in the at least one sampling window; or a fifth bit map indicating whether to feed back a perceived measurement result corresponding to each group of sampling points in one or more groups of sampling points in the at least one sampling window. With this design, the second device can accurately determine the at least one sampling point according to the second information, and thus can accurately determine the time information corresponding to the at least one sampling point.

[0040] In a possible design based on the first aspect or the second aspect, in a case where the fifth bit map indicates that a perceived measurement result corresponding to a second group of sampling points in one or more groups of sampling points is fed back, the second information further includes a sixth bit map indicating whether a perceived measurement result corresponding to each sampling point in the second group of sampling points is fed back. With this design, the second device can accurately determine the at least one sampling point, and thus can accurately determine the time information corresponding to the at least one sampling point.

[0041] In a possible design based on the first aspect or the second aspect, the second information further indicates a sampling frequency of the channel impulse response. With this design, the second device can accurately determine a time interval between adjacent sampling points of the channel impulse response according to the sampling frequency of the channel impulse response indicated by the second information, and thus can accurately determine the time information corresponding to the at least one sampling point according to the second information.

[0042] In a possible design based on the first aspect or the second aspect, the sensing measurement result includes: channel impulse response information, and / or information of a sensing target. Optionally, the sensing target can be located in the one or more regions of interest.

[0043] Optionally, the channel impulse response information includes at least one of: in-phase component information and quadrature component information of the channel impulse response; or amplitude information and phase information of the channel impulse response.

[0044] With this design, the second device can obtain the channel impulse response information corresponding to the at least one sampling point and / or the information of the sensing target. Since the at least one sampling point is associated with the one or more regions of interest, the channel impulse response information corresponding to the at least one sampling point and / or the information of the sensing target can be used for sensing the sensing target in the one or more regions of interest, for example, can be used for positioning the sensing target in the one or more regions of interest.

[0045] In a possible design based on the first aspect or the second aspect, the method can be applied to a cellular network.

[0046] In a third aspect, a communication apparatus is provided. The communication apparatus can be a terminal or an access network device, or a module, a communication module, a circuit or a chip (such as a modem chip, or a SoC chip or a SIP chip containing a modem core) responsible for communication functions and / or sensing functions in a terminal or an access network device, a chip system or a processor, or a logic node, a logic module or software capable of realizing all or part of the functions of a terminal or an access network device, or a sensing management function or a device containing a sensing management function. It should be understood that the sensing management function can also be referred to as a sensing management network element, a sensing management device or a sensing management entity, etc. As long as it has the function of managing sensing, it is within the protection scope of the present application. The communication apparatus has the functions of realizing the first aspect or the second aspect.

[0047] In a possible manner, the communication apparatus includes a module or a unit or a means corresponding to the operations of the first aspect or the second aspect, which can be implemented by software, or by hardware, or by a combination of software and hardware. For example, the communication apparatus includes an interface unit and a processing unit. The interface unit can be used to transceive signals to realize the communication between the communication apparatus and other apparatuses; the processing unit can be used to perform some internal operations of the communication apparatus. The functions performed by the processing unit and the interface unit can correspond to the operations of the first aspect or the second aspect.

[0048] In a possible implementation, the communication apparatus includes a processor. The processor can execute computer programs or instructions, which, when executed, cause the communication apparatus to implement the method in any possible design of the first aspect or the second aspect.

[0049] In a possible implementation, the communication apparatus includes a processor and a memory. The memory can store necessary computer programs or instructions for implementing the functions related to the first aspect or the second aspect. The processor can execute the computer programs or instructions stored in the memory, which, when executed, cause the communication apparatus to implement the method in any possible design of the first aspect or the second aspect.

[0050] In a possible implementation, the communication apparatus includes a processor and an interface circuit. The processor is configured to communicate with other apparatuses through the interface circuit and implement the method in any possible design of the first aspect or the second aspect.

[0051] In a fourth aspect, the present application provides a communication system, which can include a first apparatus and a second apparatus. The first apparatus can execute the communication method provided in the first aspect, and the second apparatus can execute the communication method provided in the second aspect.

[0052] In some possible designs, the first apparatus is a terminal, and the second apparatus is an access network device.

[0053] In another possible design, the first apparatus is an access network device, and the second apparatus is a perception management function.

[0054] In yet another possible design, the first apparatus is a terminal, and the second apparatus is a perception management function.

[0055] In a fifth aspect, the present application provides a computer readable storage medium, which stores computer programs or instructions. When the computer programs or instructions are executed, the method in any possible design of the first aspect or the second aspect is implemented.

[0056] In a sixth aspect, the present application provides a computer program product, which includes computer program codes. When the computer program codes are run, the method in any possible design of the first aspect or the second aspect is implemented.

[0057] In a seventh aspect, the present application provides a chip, which is configured to read computer programs stored in a memory, so as to execute the method in any possible design of the first aspect or the second aspect.

[0058] The technical effects achieved by any of the third to seventh aspects above can be described with reference to the technical effects achieved by any of the first or second aspects above, and repeated descriptions will not be provided. BRIEF DESCRIPTION OF DRAWINGS

[0059] FIG. 1A and FIG. 1B are schematic diagrams of network architectures of several communication systems according to embodiments of the present application;

[0060] FIG. 2 is a schematic diagram of a communication and perception integrated scenario according to an embodiment of the present application;

[0061] FIG. 3 is a schematic diagram of several perception scenarios according to embodiments of the present application;

[0062] FIG. 4A to FIG. 4C are schematic diagrams of several positioning methods according to embodiments of the present application;

[0063] FIG. 5 is a flowchart of a communication method according to an embodiment of the present application;

[0064] FIG. 6 is a schematic diagram of an application scenario according to an embodiment of the present application;

[0065] FIG. 7A to FIG. 7J are schematic diagrams of several sampling windows according to embodiments of the present application;

[0066] FIG. 8A is a flowchart of another communication method according to an embodiment of the present application;

[0067] FIG. 8B is a schematic diagram of several methods for determining the position of a perception target according to an embodiment of the present application;

[0068] FIG. 9 to FIG. 10 are flowcharts of still several communication methods according to embodiments of the present application;

[0069] FIG. 11 to FIG. 12 are structural diagrams of several communication apparatuses according to embodiments of the present application. DETAILED DESCRIPTION

[0070] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The technical solutions in the embodiments of the present application can be applied to various communication systems, for example, a wireless local area network (WLAN), a wireless fidelity (Wi-Fi or WiFi) system, a 4th generation (4G) mobile communication system (such as a long term evolution (LTE) system), a 5th generation (5G) mobile communication system (such as a new radio (NR) system), or a future communication system. The method provided by the present application can be applied to a terrestrial network communication system or a non-terrestrial network (NTN) communication system. The NTN communication system may, for example, be a satellite communication system, or may include a drone, a high altitude platform station (HAPS), and other aerial access network devices, which are not limited by the present application.

[0071] The present application will present various aspects, embodiments or features around a system that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that each system can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Moreover, combinations of these aspects can also be used.

[0072] FIG. 1A exemplarily shows a schematic diagram of a communication system provided by the embodiments of the present application. As shown in FIG. 1A, the communication system includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system can also include an Internet 300.

[0073] The RAN 100 includes at least one RAN node (such as 110a and 110b in FIG. 1A, collectively referred to as 110) and at least one terminal (such as 120a-120j in FIG. 1A, collectively referred to as 120). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1A), etc. can also be included in the RAN 100. The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the core network and the logical functions of the radio access network.

[0074] The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, e.g., a 4G, 5G mobile communication system, or a future evolvement thereof. The RAN 100 can also be an open RAN (ORAN or O-RAN), a cloud radio access network (CRAN), or a WiFi system. The RAN 100 can also be a communication system that combines two or more of the above systems.

[0075] The RAN nodes 110, which can also be referred to as RAN entities or access nodes, form part of the communication system and are configured to facilitate wireless access by the terminals. The RAN nodes 110 in the communication system can be of the same type or of different types. In some scenarios, the roles of the RAN nodes 110 and the terminals 120 are relative, e.g., a net element 120i in FIG. 1A can be a helicopter or a drone, which can be configured to be a mobile base station. For a terminal 120j that accesses the RAN 100 via the net element 120i, the net element 120i is a base station. But for the base station 110a, the net element 120i is a terminal. The RAN nodes 110 and the terminals 120 are sometimes referred to as communication apparatuses, e.g., the net elements 110a and 110b in FIG. 1A can be understood as communication apparatuses with base station functionalities, and the net elements 120a-120j can be understood as communication apparatuses with terminal functionalities.

[0076] The RAN nodes can also be referred to as access network devices. In the following, the access network devices are used for description, unless stated otherwise.

[0077] The access network devices can be devices or modules with corresponding communication functions at the network side of the above communication system. The access network devices usually have communication modules, circuits or chips for performing corresponding communication functions. The access network devices also have programs or instructions and corresponding programs or instructions for performing corresponding communication functions.

[0078] In a possible scenario, the access network device can be a base station (BS), an evolved NodeB (eNodeB), a transmission point (TP), an access point (AP), a transmission reception point (TRP), a mobile switching center, a next generation NodeB (gNB), a next generation NodeB in a future communication system, or an access node in a WiFi system, etc. The access network device can be a macro base station (such as 110a in FIG. 1A), a micro base station or an indoor station (such as 110b in FIG. 1A), a relay node or a donor node, a wireless controller in a CRAN scenario, a satellite, a drone, a balloon or an airplane, etc. Optionally, the access network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the access network device in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform).

[0079] In another possible scenario, multiple access network devices cooperate to assist a terminal to implement wireless access, and different access network devices respectively implement part of the functions of a base station. For example, the access network device can be a central unit (CU) or a control unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU) or a remote radio head (RRH).

[0080] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0081] For ease of description, the concepts of "access network device" and "station" will be mentioned in this application. The access network device can be understood as the general term of all devices (including stations) on the access network side, for example, one or more stations can be collectively referred to as an access network device. The station can refer to a transmission node that is specifically located at a physical location. In other words, the access network device conceptually includes the station.

[0082] The terminal can be a device or module with corresponding communication functions for accessing the above communication system. The terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, a wireless terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a user terminal device, a user agent, or a user device, etc. The terminal is usually provided with a communication module, circuit or chip for executing corresponding communication functions. The terminal can also be configured with programs or instructions for executing corresponding communication functions.

[0083] The terminal can be widely applied to various scenarios, for example, device-to-device (D2D), V2X communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Among them, the wearable device can also be called a wearable smart device or a smart wearable device, etc., which is a general term of devices that can be worn by applying wearable technology to the intelligent design of daily wear. The terminal applied to the vehicle can be called a vehicle terminal device, for example, a transportation vehicle with wireless communication function, a communication module or an on-board unit (OBU).

[0084] For example, the terminal can include a mobile phone (or called "cellular" phone), a computer with mobile terminal device, or a portable, pocket-sized, handheld, computer-embedded mobile device, etc. For example, the terminal can be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. The terminal can also include a limited device, for example, a device with limited power consumption, or a device with limited storage capacity, or a device with limited computing capacity, etc. For example, the terminal can be a bar code, a radio frequency identification (RFID), a sensor, a global positioning system (GPS), or a laser scanner, etc. The embodiments of the present application do not limit the device form of the terminal.

[0085] In this application, the core network device refers to a device in the core network that provides service support for the terminal. For example, in the case of CN 200 as the core network in the future communication system, or the 5G core network, or the evolved 5G core network, some examples of core network devices are: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) entity, policy control function (PCF) entity, location management function (LMF) entity, and the like, which are not listed one by one. Among them, the AMF entity can be responsible for access management and mobility management of the terminal; the SMF entity can be responsible for session management, such as session establishment of a user; the UPF entity can be a functional entity of the user plane, mainly responsible for connecting external networks; the LMF entity can be responsible for managing the location of the terminal. For another example, in the case of CN 200 as the 4G core network, some examples of core network devices are: mobility management entity (MME) entity, home subscriber server (HSS) entity, serving gateway (S-GW) entity, policy and charging rules function (PCRF) entity, public data network gateway (PDN gateway, P-GW) entity, and the like, which are not listed one by one. It should be noted that the entity in this application can also be referred to as a network element or a functional entity, for example, the AMF entity can also be referred to as an AMF network element or an AMF functional entity, for another example, the SMF entity can also be referred to as an SMF network element or an SMF functional entity, and for another example, the LMF entity can also be referred to as an LMF network element or an LMF functional entity. The above-mentioned core network devices can work independently, or can be combined together to realize certain control functions, such as: AMF, SMF and PCF can be combined together as a core network device.

[0086] FIG. 1B illustrates another communication system provided by the embodiments of the present application. As shown in FIG. 1B, the communication system includes: a terminal, an access network device and a core network device.

[0087] The specific content of the terminal, the access network device and the core network device can be referred to the description of the terminal, the access network device and the core network device in the above description of the communication system shown in FIG. 1A respectively, and the repeated parts will not be described herein. The following describes the part entities included in the communication system.

[0088] The network exposure function (NEF) entity, also referred to as NEF network element or NEF functional entity. The NEF entity can be located between the core network and the third party application (or referred to as the application outside the core network or external application) functional entity, and the third party application needs to access the data inside the core network through the NEF entity. The NEF entity can open an interface to the third party application in a secure manner, thereby ensuring the security of the third party application to the 3GPP network. The NEF entity can also be responsible for the Quality of service (QoS) customization capability exposure, mobility state event subscription, application function (AF) request distribution and other functions.

[0089] The unified data repository (UDR) entity, also referred to as UDR network element or UDR functional entity. The UDR entity can be used to save the data of the terminal, for example, the subscription data of the terminal can be saved.

[0090] The unified data management (UDM) entity, also referred to as UDM network element or UDM functional entity. The UDM entity can be used to manage the data of the terminal, for example, the subscription data of the terminal can be managed.

[0091] The AF can refer to various services of the application layer. The AF can be an application inside the operator, for example, a voice over LTE (VoLTE) AF (for example, a VoLTE application server (AS) of 4G); or the AF can be a third party AF, for example, a video server or a game server, etc.

[0092] The network data analytics function (NWDAF) entity, also referred to as NWDAF network element or NWDAF functional entity. The NWDAF entity can be responsible for the analysis of network data, and the analysis results can be used for the optimization and decision of network functions.

[0093] An AMF entity can be responsible for performing registration, connection, reachability and mobility management; providing a transport channel for session management messages for a terminal and an SMF entity; providing authentication and authorization functions for user access; and can provide an access point for a terminal and a core network control plane.

[0094] A sensing reference unit (SRU) can be located at a known location, used to perform sensing measurements (e.g., one or more of measuring reference signal time difference (RSTD), reference signal receiving power (RSRP), or terminal received transmission time difference (UE Rx-Tx Time Difference)), and report the measurement results to a sensing server. In addition, the SRU can send a sensing reference signal, enabling an access network device to measure the sensing reference signal sent from the SRU located at a fixed location, and report the uplink sensing measurement results (one or more of relative time of arrival (RTOA), uplink angle of arrival (UL-AOA), or access network device received transmission time difference (gNB Rx-Tx Time Difference)). The sensing server can compare the measurement results of the SRU with the expected measurement results at the location of the SRU, and derive correction terms for other objects near the SRU. The downlink and / or uplink sensing measurement results of the other objects can be corrected according to the correction terms. From the perspective of the sensing server, the SRU can be regarded as a terminal with a known location.

[0095] A sensing management function can be used to manage sensing. The sensing management function can be located in a terminal or an access network device, or the sensing management function can be a network element independent of the terminal or the access network device. The sensing management function can also have other names, such as a sensing management network element, a sensing management device, a sensing management entity, a sensing function (SF), an integrated sensing and communication (ISAC) management function (ISACMF), an ISAC service management function (ISACSMF), or a sensing service management function (SSMF), without limitation.

[0096] A gateway sensing center (GSC) can receive a sensing request from a sensing service client and send information of a sensing target (or sensing information of the target) to the sensing service client.

[0097] The sensing service client can be a logical functional entity. The sensing service client can be an entity within a public land mobile network (PLMN), such as an operation and management (O&M) tool, or an entity outside the PLMN, such as a third-party positioning server deployed by a non-operator. The sensing service client initiates a sensing request carrying parameters such as QoS to request location information of one or more sensing targets.

[0098] The communication system and service scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0099] The related terms involved in the embodiments of the present application will be explained first. It should be noted that these explanations are used to make the embodiments of the present application easier to understand, and should not be regarded as a limitation on the scope of protection required by the present application.

[0100] I. ISAC:

[0101] The communication-sensing integrated technology is considered as one of the key technologies for expanding the service capabilities of mobile communication networks. The core idea of the communication-sensing integrated technology is to add sensing capabilities to mobile communication networks to build the ability to detect, track, and image targets, so that the two capabilities of communication and sensing can coexist in harmony and benefit each other in one network. Please refer to FIG. 2, which is a schematic diagram of a communication-sensing integrated scenario. In FIG. 2, the solid lines represent communication, and the dashed lines represent sensing as an example. As shown in FIG. 2, the access network device can sense other objects through self-transmission and self-reception, or can sense other objects while communicating with the terminal. In FIG. 2, the terminal is an example of a smartphone, and the sensing targets are an unmanned aerial vehicle, a pedestrian, and a vehicle.

[0102] The perception technology can be generally divided into two modes: mono-static perception and bi-static perception. In the mono-static perception mode, the transmitting device and the receiving device of the echo signal of the perception signal are the same device. In other words, in the mono-static perception mode, the transmitting device transmits the perception signal and receives the echo signal of the perception signal after the action (for example, reflection, diffraction or scattering) of the perception target. Therefore, the mono-static perception mode can also be called self-transmitting and self-receiving mode, without limitation. In the bi-static perception mode, the transmitting device and the receiving device of the echo signal of the perception signal are different devices. In other words, the perception station A transmits the perception signal, and the perception station B receives the echo signal of the perception signal after the action of the perception target.

[0103] FIG. 3 exemplarily shows a schematic diagram of a perception scene to which the embodiments of the present application are applicable. Eight perception scenes to which the embodiments of the present application are applicable are provided in FIG. 3, which are respectively: a self-transmitting and self-receiving scene of the access network device A, i.e., a scene in which the access network device A transmits the perception signal and receives the echo signal, as shown in (1) of FIG. 3; a self-transmitting and self-receiving scene of the terminal A, i.e., a scene in which the terminal A transmits the perception signal and receives the echo signal, as shown in (2) of FIG. 3; a scene in which the access network device A transmits the perception signal and the access network device B receives the echo signal, as shown in (3) of FIG. 3; a scene in which the terminal A transmits the perception signal and the terminal B receives the echo signal, as shown in (4) of FIG. 3; a scene in which the access network device A transmits the perception signal and the terminal A receives the echo signal, as shown in (5) of FIG. 3; a scene in which the terminal A transmits the perception signal and the access network device A receives the echo signal, as shown in (6) of FIG. 3; a scene in which the access network device A transmits the perception signal and the access network device B receives the echo signal under the control of the access network device C, as shown in (7) of FIG. 3; and a scene in which the terminal A transmits the perception signal and the terminal B receives the echo signal under the control of the access network device A, as shown in (8) of FIG. 3. The perception target is a vehicle and the terminal is a smart phone in FIG. 3.

[0104] Optionally, the scenes shown in FIG. 3 can include one or more regions of interest, and one region of interest is taken as an example for illustration in the figure, without limitation. The perception target can be located in the region of interest. In the present application, the region of interest can have various possible English translations, for example, region of interest (ROI), area of interest (AOI), or field of interest (FOI).

[0105] Optionally, in the sensing scenario to which the embodiments of the present application are applicable, there can be one or more transmitting devices for transmitting the sensing signal, and one or more receiving devices for receiving the echo signal of the sensing signal. FIG. 3 illustrates one transmitting device and one receiving device by way of example, without limitation.

[0106] When there are multiple transmitting devices and one receiving device, the sensing scenario can be referred to as a multi-transmitting-single-receiving scenario. For example, sensing station A and sensing node C transmit sensing signals respectively, and the echo signal of the sensing signals resulting from the action of the sensing target is received by sensing station B. For another example, sensing station A and sensing node B transmit sensing signals respectively, and the echo signal of the sensing signals resulting from the action of the sensing target is received by sensing station B.

[0107] When there is one transmitting device and multiple receiving devices, the scenario can be referred to as a single-transmitting-multi-receiving scenario. For example, sensing station A transmits a sensing signal, and the echo signal of the sensing signal resulting from the action of the sensing target is received by sensing station B and sensing node C. For another example, sensing station A transmits a sensing signal, and the echo signal of the sensing signal resulting from the action of the sensing target is received by sensing station A and sensing node B.

[0108] The sensing target can also be referred to as a target, a detected target, a sensed object, a detected object, or a sensed device, without limitation. The sensing target can be various tangible objects in the environment that can reflect, diffract, or scatter electromagnetic waves. For example, the sensing target can be a static object such as a mountain, a forest, or a building. For another example, the sensing target can also be a movable object such as a vehicle, a drone, a pedestrian, or a terminal. The embodiments of the present application do not limit the specific implementation form of the sensing target.

[0109] The sensing measurement result can also be referred to as a sensing result, a detected result, a detected result, a detected data, or a detected data, without limitation. The sensing measurement result can be a result obtained by processing the echo signal by the receiving device. For example, the sensing measurement result can include at least one of the following: the position of the sensing target, the speed of the sensing target, the distance from the sensing target to the receiving device, the distance from the sensing target to the transmitting device, the direction of the sensing target, the angle of the sensing target, the intensity of the echo signal from the sensing target, and the like.

[0110] II. Sensing signal

[0111] In the present application, the sensing signal can include a reference signal and / or a communication signal other than the reference signal.

[0112] Among them, the reference signal is also called pilot signal. In a communication system, it is necessary to estimate the uplink channel or the downlink channel in order to send and receive data, obtain system synchronization and feedback channel information. Channel estimation refers to the process of reconstructing or recovering the received signal in order to compensate for signal distortion caused by channel fading and noise-induced fading. It uses the reference signal known by the transmitter and the receiver to determine the time domain and frequency domain variation of the channel. The above-mentioned reference signal is also called reference signal, which is distributed in one or more resource elements (REs) in the time-frequency two-dimensional space within the orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, and has a known amplitude and phase.

[0113] For example, the reference signal can include uplink reference signals and downlink reference signals. The uplink reference signal can include, but is not limited to, at least one of the following: sounding reference signal (SRS), uplink demodulation reference signal (DMRS), uplink phase noise tracking signal (PTRS), or uplink positioning signal (uplink positioning RS), etc. The downlink reference signal can include, but is not limited to, at least one of the following: positioning reference signal (PRS), downlink DMRS, PTRS, channel state information reference signal (CSI-RS), or cell reference signal (CRS), etc.

[0114] It should be understood that the reference signals listed above are only examples and should not constitute any limitation on the present application. The present application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

[0115] III. Positioning method in cellular network

[0116] Positioning methods in a cellular network can include an uplink time difference of arrival (UL-TDOA) positioning method, a downlink time difference of arrival (DL-TDOA) positioning method, and a multi-round trip time (Multi-RTT) positioning method. This is described below respectively.

[0117] (1) UL-TDOA positioning method:

[0118] The UL-TDOA positioning method can be based on the time of arrival (TOA) of an uplink reference signal. Optionally, in the UL-TDOA positioning method, a terminal can send an uplink reference signal (e.g., SRS), and correspondingly, multiple access network devices can respectively receive the uplink reference signal. Each of the multiple access network devices can send the time of arrival (TOA) information of receiving the uplink reference signal to the LMF. The LMF can determine the position of the terminal according to the time difference of arrival (TDOA) between the access network devices and the positions of the multiple access network devices.

[0119] For example, as shown in (1) of FIG. 4A, the time when the uplink reference signal arrives at the base station 1 is T1, and the time when the uplink reference signal arrives at the base station 2 is T2, so the distance difference R21 between the distance R1 from the target UE to the base station 1 and the distance R2 from the target UE to the base station 2 is R21 = R2 - R1 = (T2 - T1) * c, c is the speed of light. Similarly, the time when the uplink reference signal arrives at the base station 1 is T1, and the time when the uplink reference signal arrives at the base station 3 is T3, so the distance difference R31 between the distance R1 from the target UE to the base station 1 and the distance R3 from the target UE to the base station 3 is R31 = R3 - R1 = (T3 - T1) * c. Then, the target UE is located on the hyperbola 1 with the base station 1 and the base station 2 as the foci, and the distance difference between the two foci is constant R21, and is also located on the hyperbola 2 with the base station 1 and the base station 3 as the foci, and the distance difference between the two foci is constant R31. That is, the target UE is located at the intersection of the hyperbola 1 and the hyperbola 2.

[0120] (2) DL-TDOA positioning method:

[0121] The DL-TDOA positioning method can be based on the time of arrival of downlink reference signals. For example, in the DL-TDOA positioning method, multiple access network devices can respectively send downlink reference signals (e.g., PRS), and correspondingly, a terminal can respectively receive the downlink reference signals from the multiple access network devices. The terminal performs a downlink reference signal time difference (DL RSTD) measurement on the downlink reference signal from each access network device, and reports the DL RSTD measurement information to the LMF. The LMF can determine the position of the terminal according to the DL RSTD measurement information and the positions of the multiple access network devices.

[0122] For example, as shown in (2) of FIG. 4A, the time when the downlink reference signal of base station 1 arrives at the target UE is T1, and the time when the downlink reference signal of base station 2 arrives at the target UE is T2, so the distance difference R21 between the distance R1 from the target UE to base station 1 and the distance R2 from the target UE to base station 2 is R2-R1=(T2-T1)*c, and c is the speed of light. Similarly, the time when the downlink reference signal of base station 1 arrives at the target UE is T1, and the time when the downlink reference signal of base station 3 arrives at the target UE is T3, so the distance difference R31 between the distance R1 from the target UE to base station 1 and the distance R3 from the target UE to base station 3 is R3-R1=(T3-T1)*c. Then, the target UE is located on the hyperbola 1 with base station 1 and base station 2 as foci and the distance difference between the two foci being constant R21, and is also located on the hyperbola 2 with base station 1 and base station 3 as foci and the distance difference between the two foci being constant R31. That is, the target UE is located at the intersection of the hyperbola 1 and the hyperbola 2.

[0123] (3) Multi-RTT positioning method:

[0124] The Multi-RTT positioning method can use the relative distance between the terminal and multiple access network devices for positioning. In this method, the terminal can send an uplink reference signal (e.g., SRS), and multiple access network devices can respectively send downlink reference signals (e.g., PRS). The uplink reference signal and the downlink reference signal can be used to determine the round trip time (RTT) between the terminal and each of the multiple access network devices. The LMF can determine the distance between the terminal and each of the multiple access network devices according to the RTT between the terminal and each of the multiple access network devices, and thus can determine the position of the terminal.

[0125] The following takes base station 1 as an example to explain that "the uplink reference signal and the downlink reference signal can be used to determine the RTT between the terminal and each of the multiple access network devices".

[0126] As shown in FIG. 4B, the terminal transmits an uplink reference signal at time T4, and the base station 1 receives the uplink reference signal at time T5. The base station 1 transmits a downlink reference signal at time T6, and the terminal receives the downlink reference signal at time T7. The RTT of the signals between the terminal and the base station 1 is (T7-T4)-(T6-T5).

[0127] As shown in FIG. 4C, the target UE is at the intersection of the sphere 1, the sphere 2 and the sphere 3. The sphere 1 is a sphere with the base station 1 as the center and R1 as the radius. The sphere 2 is a sphere with the base station 2 as the center and R2 as the radius. The sphere 3 is a sphere with the base station 3 as the center and R3 as the radius.

[0128] Optionally, in the above positioning method, the plurality of access network devices can be three or more access network devices.

[0129] Four, sample point:

[0130] A sample point can be a discrete data point obtained when a continuous signal (such as a channel impulse response (CIR)) is sampled. The sample point data can include the position corresponding to the sample point and the value of the sample point at the position. In this application, the sample point can also have other names, such as tap, time sample point, sampling node or perception sample point, as long as it has the same meaning and is not limited.

[0131] Five, perception service:

[0132] In this application, the perception service can be a service with certain service requirements. For example, the perception service can include, but is not limited to, at least one of the following: static environment reconstruction, dynamic target detection, dynamic vehicle target detection, target tracking or target identification.

[0133] Optionally, the perception service can be replaced by (or understood as) a perception application type or a perception quality of service (QoS), etc.

[0134] Six, in this application, "indicate" or "for indicating" can include explicit indication (or direct indication) and implicit indication (or indirect indication). When describing that a certain information is used to indicate A, it can include that the information explicitly indicates A or implicitly indicates A, and does not mean that A must be carried in the information.

[0135] The indication manners involved in the embodiments of the present application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information. The to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different, which is not limited.

[0136] The "information" in the embodiments of the present application can be explicitly indicated, i.e., directly indicated through signaling, or obtained according to the parameters indicated by the signaling, in combination with other rules or in combination with other parameters or through derivation. Or it can be implicitly indicated, i.e., obtained according to rules or relationships, or according to other parameters, or through derivation. It is not limited.

[0137] Seven, in the present application, the communication between different devices can be direct communication between different devices (i.e. without the need for other devices to transfer or forward), or can be communication between different devices through other devices (i.e. the need for other devices to transfer or forward), or can be communication between functional units inside a device through another functional unit and other devices. Exemplarily, "sending information to … (terminal)" can be understood as that the destination of the information is the terminal, which can include directly or indirectly sending information to the terminal. "Receiving information from … (terminal)" can be understood as that the source of the information is the terminal, which can include directly or indirectly receiving information from the terminal. The information can be processed as necessary between the source and the destination of the information sending, such as format conversion, digital-to-analog conversion, amplification, filtering, etc., but the destination can understand the valid information from the source. Similar expressions in the present application can be similarly understood, which will not be repeated here.

[0138] Eight, in the present application, the words "exemplarily", "such as", "for example" and "examples of" are used to represent examples, illustrations or explanations, and are not used to limit the protection scope of the present application. It should be understood that the examples in the present application can also be implemented in other ways.

[0139] Nine, in the present application, any two of programs, instructions and codes can be replaced with each other.

[0140] Ten, in the present application, "greater than or equal to" and "greater than" can be replaced with each other. For example, "A is greater than threshold 1" and "A is greater than or equal to threshold 1" can be replaced with each other.

[0141] Eleven, in the present application, the sampling window can have other names, such as channel impulse response window, feedback window, etc., which are not limited. The "size of the sampling window" can also have other names, such as the length of the sampling window, the size of the sampling window, or the time length corresponding to the sampling window, etc., which are not limited.

[0142] Twelfth, in this application, "in the case of", "when", "if, then", and "if, then" can represent the same meaning, can be replaced with each other.

[0143] Currently, in the positioning method of the cellular network, the receiving device of the reference signal can complete the positioning by feeding back the information corresponding to a sampling point. The sampling point can be a sampling point corresponding to a line of sight (LOS) path between the receiving device and the transmitting device of the reference signal. In other words, the sampling point can be a sampling point at which the receiving device first detects the reference signal. Or, the sampling point can be a sampling point corresponding to the first path between the receiving device and the transmitting device of the reference signal. Since the sampling point is not a sampling point corresponding to a path obtained through reflection, diffraction or scattering of the sensing target, the information corresponding to the sampling point cannot be used for positioning the sensing target.

[0144] Optionally, in order to assist in improving the positioning performance, the receiving device of the reference signal can feed back the information corresponding to a small number of sampling points in addition to the sampling point. In other words, the receiving device of the reference signal can feed back the information corresponding to a small number of paths in addition to the first path. For example, the receiving device of the reference signal can feed back the information corresponding to a small number of strong paths in addition to the first path. However, in the sensing scenario, compared with the energy of the first path, the energy of the reflection path of the moving target can be very weak. By using the above method, the information fed back by the receiving device of the reference signal does not necessarily include the information corresponding to the reflection path of the moving target, so that the moving target cannot be positioned. In addition, the information of a small number of sampling points fed back by the receiving device of the reference signal can be irrelevant to the sensing target to be positioned, so that the sensing target to be positioned cannot be positioned.

[0145] In the cellular network, how to feed back the sensing measurement result needs further study.

[0146] Next, the execution subject involved in the embodiments of the present application is introduced.

[0147] The first device can be used for sensing (or performing sensing), or in other words, the first device can be a sensing node. The first device can be a terminal or an access network device, or a device (such as a module, a communication module, a circuit, a chip (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor) applied to a terminal or an access network device, or a logic node, a logic module or software capable of realizing all or part of the functions of a terminal or an access network device.

[0148] For example, the first device can be the access network device A or a device in the access network device A shown in (1) or (6) in FIG. 3; or the first device can be the terminal A or a device in the terminal A shown in (2) or (5) in FIG. 3; or the first device can be the access network device B or a device in the access network device B shown in (3) or (7) in FIG. 3; or the first device can be the terminal B or a device in the terminal B shown in (4) or (8) in FIG. 3.

[0149] Optionally, the device sending the sensing signal can be the access network device A or a device in the access network device A shown in any of (1), (3), (5) or (7) in FIG. 3; or the device sending the sensing signal can be the terminal A or a device in the terminal A shown in any of (2), (4), (6) or (8) in FIG. 3.

[0150] In some implementations, the first device can be a receiving device or a device in a receiving device in a multi-to-one scenario; in other words, the first device can receive the echo signal of the sensing signal from multiple devices. For example, a terminal receives the echo signal of the sensing signal from multiple access network devices, and the first device can be the terminal or a device in the terminal.

[0151] In some other implementations, the first device can be a receiving device or a device in a receiving device in a one-to-multi scenario; in other words, the first device can receive the echo signal of the sensing signal from one device. For example, a terminal sends the sensing signal to multiple access network devices, and the first device can be any of the multiple access network devices or a device in any of the multiple access network devices.

[0152] The second device can be configured to manage the sensing; in other words, the second device can be a node managing the sensing. Optionally, the second device can be or include a sensing management function. The details of the sensing management function can refer to the description of the sensing management function in the description of the communication system shown in FIG. 1B, and will not be repeated here.

[0153] In some possible manners, the first device and the second device are located in the same device (e.g., a terminal or an access network device). For example, the first device can implement the function of the second device; or the first device and the second device are the same device. For another example, the first device and the second device can be devices in the same device implementing different functions. In this manner, the step of transmitting information (or a message) between the first device and the second device is an optional step.

[0154] In some other possible manners, the first device and the second device are located in different apparatuses. For example, the first device can be the access network apparatus A in (1) of FIG. 3, or a device in the access network apparatus A; the second device can be a perception management function independent of the access network apparatus A. For another example, the first device can be the terminal A in (2) of FIG. 3, or a device in the terminal A; the second device can be an access network apparatus or a device in the access network apparatus accessed by the terminal A, or the second device can be a perception management function independent of the terminal A and the access network apparatus accessed by the terminal A. For yet another example, the first device can be the access network apparatus B in (3) of FIG. 3, or a device in the access network apparatus B; the second device can be a perception management function independent of the access network apparatus B. For yet another example, the first device can be the terminal B in (4) of FIG. 3, or a device in the terminal B; the second device can be an access network apparatus or a device in the access network apparatus accessed by the terminal B, or the second device can be a perception management function independent of the terminal B and the access network apparatus accessed by the terminal B. For yet another example, the first device can be the terminal A in (5) of FIG. 3, or a device in the terminal A; the second device can be an access network apparatus (for example, the access network apparatus A in (5) of FIG. 3) or a device in the access network apparatus accessed by the terminal A, or the second device can be a perception management function independent of the terminal A and the access network apparatus accessed by the terminal A. For yet another example, the first device can be the access network apparatus A in (6) of FIG. 3, or a device in the access network apparatus A; the second device can be a perception management function independent of the access network apparatus A. For example, the first device can be the access network apparatus B in (7) of FIG. 3, or a device in the access network apparatus B; the second device can be the access network apparatus C in (7) of FIG. 3, or a device in the access network apparatus C. For another example, the first device can be the terminal B in (8) of FIG. 3, or a device in the terminal B; the second device can be the access network apparatus A in (8) of FIG. 3, or a device in the access network apparatus A.

[0155] Embodiments of the present application provide a communication method. FIG. 5 is a flowchart of the communication method according to an embodiment of the present application. Optionally, the method can be applied to a cellular network. In FIG. 5, the method is exemplified by taking a first device and a second device as the execution subject of the interaction. The first device can be a terminal or a device (e.g., a module, a communication module, a circuit, a chip (e.g., a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in the terminal, or a logic node, a logic module, or software for implementing all or part of the terminal function. The second device can be an access network device or a device (e.g., a module, a communication module, a circuit, a chip (e.g., a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in the access network device, or a logic node, a logic module, or software for implementing all or part of the access network device function.

[0156] As shown in FIG. 5, the method includes the following steps.

[0157] S501: The second device sends first information; correspondingly, the first device receives the first information.

[0158] The first information can be used to determine at least one sampling point; correspondingly, the first device can determine at least one sampling point according to the first information. The determination manner will be described in detail in the following manner b1 to manner b5, which will not be expanded here.

[0159] The at least one sampling point can be associated with one or more regions of interest. The at least one sampling point can be associated with one or more regions of interest, which can be replaced by: the at least one sampling point can be determined according to one or more regions of interest. Optionally, the region of interest can include at least one of the following: a region where an object to be measured is located, a region to be measured, a target measurement region, or a field of view (FOV). The object to be measured can be replaced by at least one of the following: a target to be measured, a perception target, or a perception target to be measured.

[0160] The determination of the region of interest can be performed in various manners, which are exemplarily described as follows. In some implementations, the region of interest can be determined by the second device. For example, the second device can determine the region of interest according to the perception service. For instance, in the case that the perception service is dynamic vehicle target detection, the second device can determine that the region of interest includes the region where the road is located. For another instance, in the case that the perception service is static environment reconstruction, the second device can determine that the region of interest includes the region beside the road. In some other implementations, the region of interest can be indicated to the second device by another device (e.g., the first device or a core network device). In some other implementations, the region of interest can be pre-configured, e.g., according to a protocol. For example, the region of interest can include the region where an electronic fence is located. It should be understood that the region of interest can be determined in other manners, without limitation.

[0161] The region of interest can be represented in various manners, which are exemplarily described as follows. In some examples, the region of interest can be represented by the coordinates of the region. In some other examples, the region of interest can be represented by a geographical region, e.g., if the geographical region is A park, the region of interest is represented as including the range of A park. In some other examples, the region of interest can be indicated by the identity of one or more cells, e.g., if the identity of the one or more cells includes the identity of cell #1 and cell #2, the region of interest is represented as including the coverage (or service range) of cell #1 and cell #2. It should be understood that the region of interest can be represented in other manners, without limitation.

[0162] As mentioned above, the at least one sampling point is associated with the one or more regions of interest, and the association can be performed in various manners, e.g., manner a1 or manner a2.

[0163] Manner a1: The at least one sampling point belongs to at least one sampling window, and the at least one sampling window is a sampling window (hereinafter referred to as a second sampling window) associated with the one or more regions of interest; i.e., the at least one sampling point belongs to the second sampling window, and the second sampling window is associated with the one or more regions of interest.

[0164] In some examples, the at least one sampling point belongs to the second sampling window can be replaced by (or can be understood as) that the at least one sampling point includes part or all of the sampling points in the second sampling window.

[0165] As an example, as shown in FIG. 6, the one or more regions of interest include region of interest #1 and region of interest #2. The region of interest #1 and the region of interest #2 are associated with a second sampling window. The second sampling window can be the sampling window shown in FIG. 7A. The first 4 sampling points in the sampling window can be associated with the region of interest #1 for measuring the perception signal that passes through the perception target in the region of interest #1. The last 4 sampling points in the sampling window can be associated with the region of interest #2 for measuring the perception signal that passes through the perception target in the region of interest #2. The at least one sampling point can include some or all of the sampling points in the sampling window shown in FIG. 7A.

[0166] It should be understood that the example is illustrated with two regions of interest, and in actual applications, there can be more or less regions of interest, without limitation.

[0167] In FIG. 7A and the following FIGs. 7B-7H, the horizontal coordinate can be the transmission delay of the perception signal, the unit of the transmission delay being, for example, nanosecond (ns), and t0 being the transmission delay corresponding to the reference sampling point; or, the horizontal coordinate can be the transmission distance of the perception signal, the unit of the transmission distance being, for example, meter (m), and t0 being the transmission distance corresponding to the reference sampling point; or, the horizontal coordinate can be the index of the sampling points, the time interval between adjacent sampling points being Δt, and t0 being the index of the position of the reference sampling point, t0 being the transmission delay or the transmission distance corresponding to the reference sampling point. The vertical coordinate can be the perception measurement result (for example, the channel impulse response). The perception measurement result can be a complex number, which can be expressed as I+jQ, or can be expressed as amplitude+phase. In the case of expressing the complex number as I+jQ, I can represent the real part of the complex number, and Q can represent the imaginary part of the complex number. Both I and Q are real numbers. I and Q can be expressed in linear form, or can be expressed in decibel (dB). In the case of expressing the complex number as amplitude+phase, the complex number can be expressed as Ae jθ , where A can represent the amplitude, and θ can represent the phase. The amplitude A can be expressed in linear form, or can be expressed in dB. The phase θ can be expressed in radian, with a value range of 0-2π; or, can be expressed in degree, with a value range of 0-360°. Optionally, the value of the vertical coordinate can be the linear value of the perception measurement result. Or, the value of the vertical coordinate can be the quantized value of the perception measurement result, for example, can be the value after quantizing the perception measurement result according to 16 bits (bit). The quantization range can be 0 to CIRmax, CIRmax being 2 16 , and the quantization step being 2 16 In this application, the transmission delay can be replaced by the propagation delay; and the transmission distance can be replaced by the propagation distance.

[0168] It should be understood that in FIG. 7A and the following FIG. 7B to FIG. 7H, the sampling points associated with two regions of interest are taken as an example for illustration. In actual applications, there can be more or less regions of interest; the sampling points associated with different regions of interest can be partially or fully overlapped, or the sampling points associated with different regions of interest can not be overlapped, without limitation.

[0169] The second sampling window associated with the one or more regions of interest can be replaced by at least one of the following: parameters of the second sampling window are associated with the one or more regions of interest; or, the parameters of the second sampling window are determined according to the one or more regions of interest. Correspondingly, the second device can determine the parameters of the second sampling window according to the one or more regions of interest.

[0170] Optionally, the parameters of the second sampling window can include at least one of the following: a size of the second sampling window, or an offset of a starting position of the second sampling window relative to the reference sampling point. This is described below respectively.

[0171] 1. The size of the second sampling window:

[0172] The size of the second sampling window can be associated with d max1 and d min1 . The size of the second sampling window can be associated with d max1 and d min1 , which can be replaced by: the size of the second sampling window is determined according to d max1 and d min1 . Correspondingly, the second device can determine the size of the second sampling window according to d max1 and d min1 .

[0173] Wherein, d max1 is the maximum value of d i , and d min1 is the minimum value of d i . is the distance between a point P i in the one or more regions of interest and a sending device of the perception signal, is the distance between P i and a receiving device of the perception signal. In other words, d max1 is the sum of the distance from the first point to the sending device and the distance from the first point to the receiving device, the first point being the point in the one or more regions of interest with the maximum sum of the distance to the sending device and the distance to the receiving device; d min1is the sum of the distance from the second point to the sending device and the distance from the second point to the receiving device, and the second point is a point in the one or more regions of interest with the smallest sum of the distance to the sending device and the distance to the receiving device. The receiving device can be the first device or a device in which the first device is located.

[0174] Still taking FIG. 6 as an example, for the region of interest #1, d i ranges from 120 to 150 meters; and for the region of interest #2, d i ranges from 180 to 210 meters. In this case, d max1 is 210 meters, and d min1 is 120 meters. The size of the second sampling window is determined according to 210 meters and 120 meters. For example, the size of the second sampling window can be W length1 in FIG. 7A.

[0175] It should be understood that the example takes two regions of interest as an example, and in actual applications, there can be more or fewer regions of interest; the value ranges of d i corresponding to different regions of interest can partially or wholly overlap, or the value ranges of d i corresponding to different regions of interest can not overlap, which is not limited.

[0176] In this way, the second device can accurately determine the size of the second sampling window according to d max1 and d min1 .

[0177] Alternatively, the size of the second sampling window can be represented as W length1 , and the association manner of W length1 and d max1 and d min1 may be as shown in one of the formulas (1) to (4); in other words, W length1 satisfies one of the formulas (1) to (4):

[0178] where c is the speed of light, Δt is the time interval between adjacent sampling points of the channel impulse response, ceil() represents the upward rounding operation, floor() represents the downward rounding operation, and round() represents the rounding operation.

[0179] ​​The determination manner of Δt can be various. For example, Δt can be preset, e.g., specified by a protocol; or Δt can be determined by the second device, and optionally, after determining Δt, the second device can send information indicating Δt to the first device; or Δt can be indicated by another device (e.g., the first device or a core network device) to the second device, e.g., the other device can send information indicating Δt to the second device.

[0180] The application does not limit the indication manner of the information indicating Δt. In some examples, the information indicating Δt can explicitly indicate Δt. In other examples, the information indicating Δt can implicitly indicate Δt. For example, the information indicating Δt can indicate a sampling frequency of the channel impulse response, and Δt = 1 / sampling frequency. For another example, the information indicating Δt can indicate a distance interval corresponding to adjacent sampling points of the channel impulse response, and Δt = distance interval / c.

[0181] The time interval between adjacent sampling points of the channel impulse response can also be referred to as a sampling time interval or a sampling interval, as long as it has the same function and is within the protection scope of the application.

[0182] By this method, the second device can accurately determine the size of the second sampling window according to the above formula. In addition, according to any one of formulas (2) to (4), the size of the second sampling window can be an integer multiple of the time interval between adjacent sampling points of the channel impulse response. At present, the communication device performs signal processing at the baseband, and the signal processing at the baseband is discrete sampling according to the sampling frequency of the channel impulse response, which is the inverse of the time interval between adjacent sampling points of the channel impulse response. Therefore, the size of the second sampling window obtained by any one of formulas (2) to (4) can be matched with the signal processing operation at the baseband.

[0183] It should be understood that the above formulas (1) to (4) are only examples, and W length1 The association manner of d max1 and d min1 is not limited thereto.

[0184] 2, the offset of the start position of the second sampling window relative to the reference sampling point:

[0185] The offset of the start position of the second sampling window relative to the reference sampling point can be associated with d min1 and d ref . The offset of the start position of the second sampling window relative to the reference sampling point can be associated with d min1 and d refThe association can be replaced with: the offset of the starting position of the second sampling window relative to the reference sampling point, which can be based on d. min1 and d ref Certainly. Accordingly, the second device can be configured according to d. min1 and d ref The offset of the starting position of the second sampling window relative to the reference sampling point is determined.

[0186] Where, d min1 For details, please refer to the section on "1. Size of the Second Sampling Window" above. min1 The explanation for this will not be repeated. ref This refers to the distance between the transmitting and receiving devices of the sensed signal. The receiving device can be the first device or the device containing the first device. The specific details of the reference sampling point will be explained in method b1 below and will not be elaborated upon here.

[0187] Taking Figure 6 as an example, for region of interest #1, d i The value range is 120–150 meters; for region of interest #2, d i The value range is 180–210 meters. The distance between the transmitting and receiving devices of the sensing signal is 100 meters. In this case, d min1 It is 120 meters, d ref The distance is 100 meters. The offset of the starting position of the second sampling window relative to the reference sampling point is determined based on 120 meters and 100 meters. For example, the offset of the starting position of the second sampling window relative to the reference sampling point can be W in Figure 7A. offset1 .

[0188] It should be understood that this example uses two regions of interest; in real-world applications, there may be more or fewer regions of interest; the corresponding d values ​​for different regions of interest... i The range of values ​​for can partially or completely overlap, or, different regions of interest correspond to different values ​​for d. i The range of values ​​can be non-overlapping and is not restricted.

[0189] In this way, the second device can be based on d min1 and d ref This accurately determines the offset of the starting position of the second sampling window relative to the reference sampling point.

[0190] Optionally, the offset of the starting position of the second sampling window relative to the reference sampling point can be expressed as W. offset1 W offset1 With d min1 and d ref The association method can be shown in one of the formulas (5) to (8); in other words, W offset1 Satisfying one of the terms in formulas (5) to (8):

[0191] The content of each parameter and operator symbol in the formulas (5) to (8) can refer to the description of each parameter and operator symbol in the formulas (1) to (4) and will not be repeated here.

[0192] Through the method, the second device can accurately determine the offset of the starting position of the second sampling window relative to the reference sampling point according to the above formulas. In addition, through any one of the formulas (6) to (8), the offset of the starting position of the second sampling window relative to the reference sampling point can be an integer multiple of the time interval between adjacent sampling points of the channel impulse response. At present, the communication device performs signal processing in the baseband, and the signal processing in the baseband is discrete sampling according to the sampling frequency of the channel impulse response, which is the inverse of the time interval between adjacent sampling points of the channel impulse response. Therefore, the offset of the starting position of the second sampling window relative to the reference sampling point obtained through any one of the formulas (6) to (8) can match the signal processing operation in the baseband.

[0193] It should be understood that the above formulas (5) to (8) are only examples, and W offset1 is associated with d min1 and d ref is not limited thereto.

[0194] Optionally, in the case where the distance (i.e., d ref ) between the sending device and the receiving device of the perception signal is 0, the offset of the starting position of the second sampling window relative to the reference sampling point can be associated with d min1 and d ref may be replaced by (or can be understood as) that the offset of the starting position of the second sampling window relative to the reference sampling point can be associated with d min1 ; and / or, in the above formulas (5) to (8), “-d ref ” can be removed, for example, the formula (5) can be changed to and / or, in the figure 7A, the value of t0 is 0.

[0195] Through the mode a1, the at least one sampling point belongs to one sampling window (i.e., the second sampling window) associated with the one or more regions of interest, so that the first device can accurately determine the at least one sampling point according to the second sampling window, and thus can obtain and feed back the perception measurement result related to the one or more regions of interest according to the at least one sampling point.

[0196] In addition, in this manner, the second sampling window is associated with one or more regions of interest; accordingly, the second device can determine one sampling window for the one or more regions of interest. In this way, for the one or more regions of interest, the second device can indicate only one sampling window to the first device, without the need to indicate the sampling window corresponding to each region of interest respectively, thereby reducing the signaling overhead.

[0197] a2: The at least one sampling point belongs to at least one sampling window, each of the at least one sampling window being associated with one region of interest of the one or more regions of interest.

[0198] In this way, the at least one sampling point belongs to the at least one sampling window can be replaced by (or can be understood as) that the at least one sampling point includes part or all of the sampling points in the at least one sampling window. The at least one sampling window, each of the at least one sampling window being associated with one region of interest of the one or more regions of interest, can be replaced by (or can be understood as) that the at least one sampling window is in one-to-one correspondence with the one or more regions of interest.

[0199] For example, as shown in FIG. 6, the one or more regions of interest include a region of interest #1 and a region of interest #2. As shown in FIG. 7B, the at least one sampling window can include a sampling window #1 and a sampling window #2. The sampling window #1 can be associated with the region of interest #1, for measuring the perception signal passing through the perception target in the region of interest #1. The sampling window #2 can be associated with the region of interest #2, for measuring the perception signal passing through the perception target in the region of interest #2. The at least one sampling point can include part or all of the sampling points in the sampling window #1 and the sampling window #2.

[0200] It should be understood that this example takes two regions of interest as an example for illustration, and in actual application, there can be more or fewer regions of interest, without limitation.

[0201] The at least one sampling window includes a first sampling window, which is taken as an example for illustration below. The other sampling windows in the at least one sampling window can refer to the first sampling window, and will not be described again.

[0202] In some implementations, the first sampling window is associated with a first region of interest of the one or more regions of interest. In this way, the first sampling window being associated with the first region of interest can be replaced by at least one of the following: a parameter of the first sampling window being associated with the first region of interest; or, the parameter of the first sampling window being determined according to the first region of interest. Accordingly, the second device can determine the parameter of the first sampling window according to the first region of interest.

[0203] Optionally, the parameters of the first sampling window may include at least one of the following: the size of the first sampling window, or the offset of the starting position of the first sampling window relative to the reference sampling point. These will be explained below.

[0204] 1. Size of the first sampling window:

[0205] The size of the first sampling window and d max2 and d min2 Correlation. The size of the first sampling window is related to d. max2 and d min2 The association can be replaced with: the size of the first sampling window is based on d. max2 and d min2 Certainly. Accordingly, the second device can be configured according to d. max2 and d min2 Determine the size of the first sampling window.

[0206] Where, d max2 It is d j The maximum value, d min2 It is d j The minimum value. Point P in the first region of interest j The distance between the device transmitting the sensing signal and the device. For P j The distance between the receiving device and the sensing signal. In other words, d max2 The distance from the third point to the transmitting device and the distance from the third point to the receiving device are the sum of the distances from the third point to the transmitting device and the receiving device, respectively. The third point is the point in the first region of interest where the sum of the distances from the third point to the transmitting device and the receiving device is the largest. min2 The distance from the fourth point to the transmitting device and the distance from the fourth point to the receiving device are the sum of the distances from the fourth point to the transmitting device and the receiving device, respectively. The fourth point is the point in the first region of interest where the sum of the distances to the transmitting device and the receiving device is the smallest. The receiving device may be the first device or the device in which the first device is located.

[0207] Taking Figure 6 as an example, for region of interest #1, d j The value range is 120–150 meters; for region of interest #2, d j The value range is 180–210 meters. When the first region of interest is region of interest #1, d max2 It is 150 meters, d min2 The first sampling window is 120 meters; the size of the first sampling window is determined based on 150 meters and 120 meters, for example, the size of the first sampling window is W in Figure 7B. length2 1 When the first region of interest is region of interest #2, d max2 It is 210 meters, dmin2 is 180 meters; the size of the first sampling window is determined according to 210 meters and 180 meters, for example, the size of the first sampling window is W length2 2 .

[0208] It should be understood that the example takes two regions of interest as an example, and in actual applications, there can be more or fewer regions of interest; the value ranges of d j of different regions of interest can partially or wholly overlap, or the value ranges of d j of different regions of interest can not overlap, which is not limited.

[0209] In this way, the second device can accurately determine the size of the first sampling window according to d max2 and d min2 .

[0210] Alternatively, the size of the first sampling window can be represented as W length2 , W length2 , and the association manner of d max2 and d min2 may be as shown in one of formulas (9) to (12), in other words, W length2 satisfies one of formulas (9) to (12):

[0211] The contents of each parameter and operator symbol in formulas (9) to (12) can be referred to the description of each parameter and operator symbol in formulas (1) to (4), and will not be repeated here.

[0212] Through this method, the second device can accurately determine the size of the first sampling window according to the above formulas. In addition, through any one of formulas (10) to (12), the size of the first sampling window can be an integer multiple of the time interval between adjacent sampling points of the channel impulse response; at present, the communication device performs signal processing in the baseband, and the signal processing in the baseband is discrete sampling according to the sampling frequency of the channel impulse response, and the sampling frequency is the inverse of the time interval between adjacent sampling points of the channel impulse response, therefore, the size of the first sampling window obtained through any one of formulas (10) to (12) can be matched with the signal processing operation in the baseband.

[0213] It should be understood that the above formulas (9) to (12) are only examples, and the association manner of W length2 , d max2 and d min2 is not limited thereto.

[0214] 2, the offset of the starting position of the first sampling window relative to the reference sampling point:

[0215] The offset of the starting position of the first sampling window relative to the reference sampling point can be associated with d min2 and d ref may be replaced by: the offset of the starting position of the first sampling window relative to the reference sampling point is determined according to d min2 and d ref may be replaced by: the offset of the starting position of the first sampling window relative to the reference sampling point is determined according to d min2 and d ref . Correspondingly, the second device can determine the offset of the starting position of the first sampling window relative to the reference sampling point according to d min2 and d ref .

[0216] The specific content of d min2 may refer to the description of d min2 in the above "1, size of the first sampling window", which will not be repeated here. d ref is the distance between the sending device and the receiving device of the perception signal. The receiving device can be the first device or the device where the first device is located. The specific content of the reference sampling point will be described in the following mode b1, which will not be expanded here.

[0217] Still taking FIG. 6 as an example, for the region of interest #1, the value range of d j is 120-150 meters; for the region of interest #2, the value range of d j is 180-210 meters. The distance between the sending device and the receiving device of the perception signal is 100 meters. In the case that the first region of interest is the region of interest #1, d min2 is 120 meters, d ref is 100 meters; the offset of the starting position of the first sampling window relative to the reference sampling point is determined according to 120 meters and 100 meters, for example, the offset of the starting position of the first sampling window relative to the reference sampling point is W offset2 1 in FIG. 7B. In the case that the first region of interest is the region of interest #2, d min2 is 180 meters, d ref is 100 meters; the offset of the starting position of the first sampling window relative to the reference sampling point is determined according to 180 meters and 100 meters, for example, the offset of the starting position of the first sampling window relative to the reference sampling point is W offset2 2 .

[0218] It should be understood that this example takes two regions of interest as an example, and in actual application, there can be more or fewer regions of interest; d jThe range of values ​​for can partially or completely overlap, or, different regions of interest correspond to different values ​​for d. j The range of values ​​can be non-overlapping and is not restricted.

[0219] Using this method, the second device can determine the order based on d. min2 and d ref This accurately determines the offset of the starting position of the first sampling window relative to the reference sampling point.

[0220] Optionally, the offset of the starting position of the first sampling window relative to the reference sampling point can be expressed as W. offset2 W offset2 With d min2 and d ref The association method can be shown in one of the formulas (13) to (16); in other words, W offset2 Satisfying one of the terms in formulas (13) to (16):

[0221] The contents of each parameter and operation symbol in formulas (13) to (16) can be found in the explanation of each parameter and operation symbol in formulas (1) to (4), and will not be repeated here.

[0222] Using this method, the second device can accurately determine the offset of the starting position of the first sampling window relative to the reference sampling point according to the above formula. In addition, the offset of the starting position of the first sampling window relative to the reference sampling point can be an integer multiple of the time interval between adjacent sampling points of the channel impulse response using any of formulas (14) to (16). Currently, the communication device performs signal processing in the baseband, and the signal processing in the baseband is discrete sampling according to the sampling frequency of the channel impulse response, which is the reciprocal of the time interval between adjacent sampling points of the channel impulse response. Therefore, the offset of the starting position of the first sampling window relative to the reference sampling point obtained by any of formulas (14) to (16) can match the signal processing operation performed in the baseband.

[0223] It should be understood that the above formulas (13) to (16) are merely examples, W offset2 With d min2 and d ref The association methods are not limited to this.

[0224] Optionally, the distance between the transmitting and receiving devices of the sensing signal (i.e., d) ref When ) is 0, the offset of the starting position of the first sampling window relative to the reference sampling point can be compared with d. min2 and d ref The correlation can be replaced with (or understood as): the offset of the starting position of the first sampling window relative to the reference sampling point can be related to d.min2 correlation; and / or, in the above formula (13) to formula (16), the "-d ref ", for example, the formula (13) can be changed to and / or, in the figure 7B, the value of t0 is 0.

[0225] According to the mode a2, the at least one sampling point belongs to the at least one sampling window associated with the one or more regions of interest, so that the first device can accurately determine the at least one sampling point according to the at least one sampling window, and thus can obtain and feed back the perception measurement result related to the one or more regions of interest according to the at least one sampling point.

[0226] In addition, in this mode, each region of interest can be associated with a sampling window, so that the sampling points in the sampling window are all associated with the region of interest. The first device can only report the perception measurement result corresponding to the sampling point associated with the region of interest, and can not report the perception measurement result corresponding to the sampling point not associated with the region of interest, so as to save the transmission overhead of the perception measurement result.

[0227] The first information can be carried in a conventional message (for example, a measurement request or a request location information) or in a new message. For example, the first information can be carried in a radio resource control (RRC) message, a medium access control-control element (MAC CE) or a downlink control information (DCI).

[0228] The name of the first information can be various, for example, control information, configuration information, indication information, request information, measurement request information, request perception information or request location information, as long as it has the same function, it is within the protection scope of the present application.

[0229] S502: The first device sends the second information; and correspondingly, the second device receives the second information.

[0230] The second information indicates the perception measurement result corresponding to the at least one sampling point. Optionally, the first device can measure the perception signal at the at least one sampling point to obtain the perception measurement result corresponding to the at least one sampling point, and send the second information indicating the perception measurement result corresponding to the at least one sampling point to the second device.

[0231] In some implementations, the sensing measurement result can include: channel impulse response information, and / or information of the sensing target. The following describes the two cases respectively.

[0232] 1. Channel impulse response information:

[0233] Optionally, the channel impulse response information includes at least one of: in-phase component (I component) information and quadrature-phase component (Q component) information of the channel impulse response; or amplitude information and phase information of the channel impulse response. In this way, the second device can determine the modulation signal corresponding to the at least one sampling point according to the channel impulse response information corresponding to the at least one sampling point.

[0234] In some examples, the channel impulse response information includes: I component information and Q component information of the channel impulse response. For example, the at least one sampling point includes: sampling point #1 to sampling point #3. The measurement result corresponding to the at least one sampling point can include: I component information and Q component information of the channel impulse response corresponding to sampling point #1; I component information and Q component information of the channel impulse response corresponding to sampling point #2; I component information and Q component information of the channel impulse response corresponding to sampling point #3.

[0235] In other examples, the channel impulse response information includes: amplitude information and phase information of the channel impulse response. For example, the at least one sampling point includes: sampling point #1 to sampling point #3. The measurement result corresponding to the at least one sampling point can include: amplitude information and phase information of the channel impulse response corresponding to sampling point #1; amplitude information and phase information of the channel impulse response corresponding to sampling point #2; amplitude information and phase information of the channel impulse response corresponding to sampling point #3.

[0236] 2. Information of the sensing target:

[0237] For example, the information of the sensing target can include at least one of: position information of the sensing target, speed information of the sensing target, direction information of the sensing target, angle information of the sensing target, strength information of the echo signal of the sensing target, distance information of the sensing target to the receiving device, and distance information of the sensing target to the sending device.

[0238] Optionally, the information of the sensing target can be obtained by processing the channel impulse response information, and the specific processing manner is not limited in the present application.

[0239] The second information can be carried in a conventional message (e.g., measurement response or provide location information) or in a new message. For example, the second information can be carried in an RRC message, a MAC CE, or uplink control information (UCI).

[0240] The second information can be named in various ways, such as feedback information, response information, measurement response information, provide awareness information, or provide location information, as long as it has the same function and is within the scope of the present application.

[0241] According to the method shown in FIG. 5, the first device can determine at least one sampling point associated with one or more regions of interest according to the first information from the second device, and feed back awareness measurement results corresponding to the at least one sampling point to the second device. In this way, the awareness measurement results fed back by the first device can be associated with the regions of interest, and thus can be used for positioning the awareness target in the regions of interest.

[0242] As described above, the first information can be used to determine the at least one sampling point; accordingly, the first device can determine the at least one sampling point according to the first information. The determination can be in various ways, such as at least one of the ways b1 to b5.

[0243] Way b1: The first information indicates at least one sampling window, and the at least one sampling point includes all sampling points in the at least one sampling window. Accordingly, the first device can determine the at least one sampling window according to the first information, and determine that the at least one sampling point includes all sampling points in the at least one sampling window.

[0244] In some examples, the at least one sampling window indicated by the first information can be the second sampling window in way a1, and the at least one sampling point can include all sampling points in the second sampling window. For example, the second sampling window is the sampling window shown in FIG. 7A, and the at least one sampling point can include all sampling points in the sampling window shown in FIG. 7A.

[0245] In other examples, the at least one sampling window indicated by the first information can be the at least one sampling window in way a2, and the at least one sampling point can include all sampling points in the at least one sampling window. For example, the at least one sampling window includes sampling window #1 and sampling window #2 shown in FIG. 7B. The at least one sampling point can include all sampling points in sampling window #1 and all sampling points in sampling window #2.

[0246] The ways in which the first information indicates the at least one sampling window are described below.

[0247] In some implementations, the first information can indicate at least one of: an offset of a reference position of each of the at least one sampling window relative to a reference sampling point, a size of each of the at least one sampling window, or a period of each of the at least one sampling window. Where the reference position is, for example, a start position, an end position, a center position, or a position specified or agreed by a protocol; the period of a sampling window can be understood as a time duration for sampling by the sampling window.

[0248] In some examples, the first information can indicate: an offset of a reference position of each of the at least one sampling window relative to a reference sampling point, a size of each of the at least one sampling window, and a period of each of the at least one sampling window.

[0249] For example, the at least one sampling window is the sampling window shown in FIG. 7A; the first information can indicate: an offset W offset1 of a start position of the sampling window relative to a reference sampling point, a size W length1 of the sampling window, and a period #1 of the sampling window. As shown in FIG. 7C, within the period #1, there can be at least one sampling window shown in FIG. 7A. The first device can determine the at least one sampling window within the period #1 according to t0, W offset1 and W length1 corresponding to the reference sampling point, and sample the awareness signal within the at least one sampling window within the period #1.

[0250] For another example, the at least one sampling window can include the sampling window #1 and the sampling window #2 shown in FIG. 7B; the first information can indicate: an offset W offset2 1 of a start position of the sampling window #1 relative to a reference sampling point, a size W length2 1 of the sampling window #1, a period #2 of the sampling window #1, an offset W offset2 2 of a start position of the sampling window #2 relative to the reference sampling point, a size W length2 2 of the sampling window #2, and a period #3 of the sampling window #2. As shown in FIG. 7D, within the period #2, there can be at least one sampling window #1; within the period #3, there can be at least one sampling window #2. The first device can determine the at least one sampling window within the period #2 according to t0, W offset2 1 and W length2 1determining at least one sampling window #1 within the period #2, and sampling the sensing signal within the at least one sampling window #1 within the period #2; determining the sampling window #1 according to t0, W offset2 2 and W length2 2 determining at least one sampling window #2 within the period #3, and sampling the sensing signal within the at least one sampling window #2 within the period #3. It should be understood that the periods of different sampling windows in the at least one sampling window can be the same or different, and FIG. 7D illustrates an example in which the periods of different sampling windows are different.

[0251] In some other examples, the first information can indicate an offset of a reference position of each sampling window in the at least one sampling window relative to the reference sampling point, and a size of each sampling window in the at least one sampling window.

[0252] For example, the at least one sampling window can be the sampling window shown in FIG. 7A; the first information can indicate an offset W offset1 of a start position of the sampling window relative to the reference sampling point, and a size W length1 of the sampling window. In this way, the first device can determine the sampling window shown in FIG. 7A according to t0, W offset1 and W length1 corresponding to the reference sampling point.

[0253] For another example, the at least one sampling window can include the sampling window #1 and the sampling window #2 shown in FIG. 7B; the first information can indicate an offset W offset2 1 of a start position of the sampling window #1 relative to the reference sampling point, a size W length2 1 of the sampling window #1, an offset W offset2 2 of a start position of the sampling window #2 relative to the reference sampling point, and a size W length2 2 of the sampling window #2. In this way, the first device can determine the sampling window #1 according to t0, W offset2 1 and W length2 1 corresponding to the reference sampling point, and determine the sampling window #2 according to t0, W offset2 2 and W length2 2 corresponding to the reference sampling point.

[0254] It should be understood that the manner in which the first information indicates the at least one sampling window is not limited to this. For example, the first information can also indicate a first sampling point or a last sampling point in each sampling window, and a number of sampling points included in each sampling window. For another example, the first information can indicate a first sampling point and a last sampling point in each sampling window.

[0255] In the above manner, the first information can accurately indicate the at least one sampling window; correspondingly, the first device can accurately determine the at least one sampling window according to the first information.

[0256] In some implementations, the first information can also indicate a type of the reference sampling point. The type of the reference sampling point can include at least one of: a sampling point corresponding to a direct path, a sampling point corresponding to a strongest perception measurement result, or a sampling point agreed by a common clock. The sampling point corresponding to the direct path can be replaced by at least one of: a sampling point at which a perception measurement result (or a perception signal) is first detected, a sampling point corresponding to a first detected path, or a sampling point corresponding to an earlist tap. The sampling point corresponding to the strongest perception measurement result can be replaced by at least one of: a sampling point at which a signal strength of a perception signal is strongest, or a sampling point corresponding to a strongest tap. In this implementation, the first device can accurately determine the type of the reference sampling point according to the first information.

[0257] In other implementations, the type of the reference sampling point can be pre-set, for example, specified by a protocol. For example, the type of the reference sampling point can be pre-set as at least one of: a sampling point corresponding to a direct path, a sampling point corresponding to a strongest perception measurement result, or a sampling point agreed by a common clock. In this implementation, the first device can accurately determine the type of the reference sampling point.

[0258] The type of the reference sampling point can be used to determine the reference sampling point; correspondingly, the first device can determine the reference sampling point according to the type of the reference sampling point, so as to determine the at least one sampling window according to t0 corresponding to the reference sampling point.

[0259] In some examples, the reference sampling point can be determined by the first device according to a measurement. For example, in a case where the reference sampling point is a sampling point corresponding to a direct path or a sampling point corresponding to a strongest perception measurement result, the first device can determine the reference sampling point according to a measurement result of a perception signal.

[0260] In some examples, the reference sampling point can be agreed by the first device and the second device; or can be indicated by the second device to the first device. For example, in the case that the reference sampling point is a sampling point agreed by a common clock, the reference sampling point can be agreed by the first device and the second device; or can be indicated by the second device to the first device.

[0261] Optionally, the reference sampling point can satisfy at least one of the following conditions #1 to #2:

[0262] Condition #1: the transmission time delay corresponding to the reference sampling point is known (or fixed or unchanged).

[0263] For example, the reference sampling point is a sampling point corresponding to a direct path. In the case that the sending device and the receiving device of the perception signal are fixed, the direct path is known. Therefore, the transmission time delay corresponding to the direct path is known, and accordingly, the transmission time delay corresponding to the reference sampling point is known, and the condition #1 is satisfied.

[0264] For another example, the reference sampling point is a sampling point corresponding to a time when the receiving device receives a synchronization reference signal, the synchronization reference signal being sent by the sending device to the receiving device through a wired manner, and the sending time of the synchronization reference signal being the same as the sending time of the perception signal. In the case that the sending device and the receiving device of the perception signal are fixed, the arrival path of the synchronization signal is known. Therefore, the transmission time delay corresponding to the arrival path of the synchronization signal is known, and accordingly, the transmission time delay corresponding to the reference sampling point is known, and the condition #1 is satisfied.

[0265] For the reference sampling point satisfying the condition #1, the relative transmission time delay of any sampling point with respect to the reference sampling point can be used to determine the transmission time delay and / or the transmission distance corresponding to the sampling point; in this way, the perception measurement results corresponding to different sampling points can be aligned, facilitating subsequent multi-antenna angle finding and / or velocity measurement based on the perception measurement results (e.g., channel impulse response) of different sampling points (corresponding to different times).

[0266] Condition #2: the Doppler (or Doppler frequency offset) corresponding to the reference sampling point is 0.

[0267] Optionally, the condition #2 can be replaced by (or can be understood as) at least one of the following: the Doppler corresponding to the reference sampling point is known, fixed, and does not change with time; the path corresponding to the reference sampling point does not change in the Doppler measurement process; or, the Doppler corresponding to the path corresponding to the reference sampling point is known, fixed, and does not change with time.

[0268] For example, the reference sampling point is the sampling point corresponding to the direct path. In the case that the transmitting device and the receiving device of the perception signal are fixed, the Doppler corresponding to the direct path does not change with time, i.e., the Doppler change corresponding to the direct path is 0, and accordingly, the Doppler change corresponding to the reference sampling point is 0, and the condition #2 is satisfied.

[0269] For another example, the reference sampling point is the sampling point corresponding to the time when the receiving device receives a synchronization reference signal, which is transmitted by the transmitting device to the receiving device through a wired manner and has the same transmission time as the perception signal. In the case that the transmitting device and the receiving device of the perception signal are fixed, the arrival path of the synchronization signal does not change with time, and accordingly, the Doppler change corresponding to the reference sampling point is 0, and the condition #2 is satisfied.

[0270] In the Doppler measurement, the dynamic change of the sampling point is to be measured. Since the dynamic change is relative, for the reference sampling point satisfying the condition #2, the Doppler corresponding to any sampling point can be obtained according to the Doppler corresponding to the reference sampling point, so as to improve the accuracy of the Doppler corresponding to the sampling point.

[0271] According to the first information, the first device can accurately determine the at least one sampling window, and accordingly, the at least one sampling point can be accurately determined according to the at least one sampling window.

[0272] The first information indicates the at least one sampling window and the first bit map. The first bit map can indicate whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window; in other words, the first bit map can indicate whether the sampling point in the at least one sampling window belongs to the at least one sampling point. Accordingly, the first device can determine the at least one sampling window and the first bit map according to the first information, and determine the at least one sampling point according to the at least one sampling window and the first bit map.

[0273] The specific content of the first information indicating the at least one sampling window can refer to the description of the first information indicating the at least one sampling window in the manner b1, and will not be described herein again. The specific manner of the first information indicating the first bit map is not limited, for example, the first information can include the first bit map.

[0274] In some implementations, at least one bit in the first bitmap can correspond to one sampling point in the at least one sampling window. The at least one bit can be part or all of the bits in the first bitmap. Each bit in the at least one bit can be used to indicate whether to feed back the perception measurement result corresponding to the sampling point corresponding to the bit. For example, if a bit in the at least one bit has a first value (e.g., 1 or 0), it indicates to feed back the perception measurement result corresponding to the sampling point corresponding to the bit; if a bit in the at least one bit has a second value (e.g., 0 or 1), it indicates not to feed back the perception measurement result corresponding to the sampling point corresponding to the bit. The first value and the second value are different.

[0275] Optionally, the at least one bit can be arranged in an order from front to back according to the time of the sampling point corresponding to the bit. For example, the at least one sampling window is shown in FIG. 7E, the first value is 1, and the second value is 0. If the first bitmap has a value of 1111001011, it indicates to feed back the perception measurement results corresponding to the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window, and not to feed back the perception measurement results corresponding to the 5th, 6th and 8th sampling points in the sampling window; in other words, the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window belong to the at least one sampling point. For another example, the at least one sampling window is shown in FIG. 7F, the first value is 1, and the second value is 0. If the first bitmap has a value of 11111011, it indicates to feed back the perception measurement results corresponding to the 1st to 4th sampling points in the sampling window #1, to feed back the perception measurement results corresponding to the 1st, 3rd to 4th sampling points in the sampling window #2, and not to feed back the perception measurement result corresponding to the 2nd sampling point in the sampling window #2; in other words, the 1st to 4th sampling points in the sampling window #1, and the 1st, 3rd to 4th sampling points in the sampling window #2 belong to the at least one sampling point.

[0276] Optionally, the number of bits in the first bitmap can be greater than or equal to the number of sampling points in the at least one sampling window. For example, as shown in FIG. 7E, if the number of sampling points in the at least one sampling window is 10, the number of bits in the first bitmap is greater than or equal to 10. For another example, as shown in FIG. 7F, if the number of sampling points in the at least one sampling window is 8, the number of bits in the first bitmap is greater than or equal to 8.

[0277] By way of b2, the first device can accurately determine the at least one sampling window and the first bitmap according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window and the first bitmap.

[0278] In addition, in this manner, the first bitmap can indicate whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window, so that the first device can not feed back the perception measurement result corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result.

[0279] In addition, in the case that the at least one sampling window is the second sampling window in the manner a1, the first bitmap can indicate to feed back the perception measurement result corresponding to the sampling point associated with the one or more regions of interest in the second sampling window, and not to feed back the perception measurement result corresponding to the sampling point not associated with the one or more regions of interest in the second sampling window, so that the perception measurement result fed back is related to the one or more regions of interest.

[0280] Manner b3: The first information indicates the at least one sampling window. The at least one sampling point includes a sampling point in the at least one sampling window whose corresponding perception measurement result is greater than a first threshold. Correspondingly, the first device can determine the at least one sampling window according to the first information, and determine the at least one sampling point according to the at least one sampling window and the first threshold.

[0281] The specific content of the first information indicating the at least one sampling window can refer to the description of “the first information indicating the at least one sampling window” in the manner b1, and will not be described here. The first threshold can be pre-set, for example, specified by a protocol, or determined by the first device, or indicated by another device (for example, the second device or a core network device) to the first device, for example, the first information can indicate the first threshold.

[0282] For example, the at least one sampling window is as shown in FIG. 7G. If the perception measurement result corresponding to the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window is greater than the first threshold, the at least one sampling point includes the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window.

[0283] For another example, the at least one sampling window is as shown in FIG. 7H. If the perception measurement result corresponding to the 1st to 4th sampling points in the sampling window #1 is greater than the first threshold, and the perception measurement result corresponding to the 1st, 3rd to 4th sampling points in the sampling window #2 is greater than the first threshold, the at least one sampling point includes the 1st to 4th sampling points in the sampling window #1, and the 1st, 3rd to 4th sampling points in the sampling window #2.

[0284] Through the manner b3, the first device can accurately determine the at least one sampling window according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window and the first threshold.

[0285] In addition, in the manner, the at least one sampling point comprises: a sampling point in the at least one sampling window, and a corresponding perception measurement result of the sampling point is greater than the first threshold value. In this way, the first device can not feed back the corresponding perception measurement result of all sampling points in the at least one sampling window, so that the feedback overhead of the perception measurement result can be reduced.

[0286] Manner b4: The first information indicates the at least one sampling window and a second bit map. The second bit map indicates whether to feed back the corresponding perception measurement result of each group of sampling points in the at least one group of sampling points; in other words, the second bit map indicates whether each group of sampling points in the at least one group of sampling points contains a sampling point belonging to the at least one sampling window. Correspondingly, the first device can determine the at least one sampling window and the second bit map according to the first information, and determine the at least one sampling point according to the at least one sampling window and the second bit map.

[0287] The specific content of the first information indicating the at least one sampling window can refer to the description of "the first information indicating the at least one sampling window" in manner b1, and will not be repeated here. The specific manner of the first information indicating the second bit map is not limited, for example, the first information can include the second bit map.

[0288] In some implementations, one or more bits in the second bit map can correspond to the at least one group of sampling points one by one. The one or more bits can be part or all of the bits in the second bit map. Each bit in the one or more bits can be used to indicate whether to feed back the corresponding perception measurement result of the sampling point of the group corresponding to the bit. For example, if the value of a certain bit in the one or more bits is a third value (for example, 1 or 0), it indicates to feed back the perception measurement result of the sampling point of the group corresponding to the bit; if the value of a certain bit in the one or more bits is a fourth value (for example, 0 or 1), it indicates not to feed back the perception measurement result of the sampling point of the group corresponding to the bit. The third value and the fourth value are different.

[0289] For example, the at least one sampling window is as shown in FIG. 7I, the third value is 1, and the fourth value is 0. If the value of the second bit map is 10011, it indicates to feed back the corresponding perception measurement result of the 1st, 4th and 5th groups of sampling points in the sampling window, and not to feed back the corresponding perception measurement result of the 2nd and 3rd groups of sampling points in the sampling window. For another example, the at least one sampling window is as shown in FIG. 7J, the third value is 1, and the fourth value is 0. If the value of the second bit map is 1011, it indicates to feed back the corresponding perception measurement result of the 1st group of sampling points in the sampling window #1, and to feed back the corresponding perception measurement result of the 1st and 2nd groups of sampling points in the sampling window #2, and not to feed back the corresponding perception measurement result of the 2nd group of sampling points in the sampling window #1.

[0290] Optionally, the number of bits in the second bitmap can be greater than or equal to the number of groups of sampling points in the at least one sampling window. For example, as shown in FIG. 7I, if the number of groups of sampling points in the at least one sampling window is 5, the number of bits in the second bitmap is greater than or equal to 5. For another example, as shown in FIG. 7J, if the number of groups of sampling points in the at least one sampling window is 4, the number of bits in the second bitmap is greater than or equal to 4.

[0291] According to the first information, the first device can accurately determine the at least one sampling window and the second bitmap, and accurately determine the at least one sampling point according to the at least one sampling window and the second bitmap.

[0292] In addition, in this way, the second bitmap indicates whether to feed back the perception measurement result corresponding to each group of sampling points in the at least one group of sampling points, so that the first device can not feed back the perception measurement result corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result.

[0293] In addition, this way can group to indicate whether to feed back the perception measurement result corresponding to each group of sampling points, so that in the case that the sampling points to be fed back the perception measurement result are sparse, this way does not need to explicitly indicate whether to feed back the perception measurement result corresponding to each sampling point, thereby reducing the signaling overhead.

[0294] In some implementations, in a case where the second bitmap indicates to feed back the perception measurement result corresponding to a first group of sampling points in the at least one group of sampling points, the at least one sampling point can include all sampling points in the first group of sampling points. For example, taking FIG. 7I as an example, the second bitmap indicates to feed back the perception measurement result corresponding to the 1st, 4th and 5th groups of sampling points in the sampling window, and the at least one sampling point can include the 1st to 2nd and 7th to 10th sampling points in the sampling window. For another example, taking FIG. 7J as an example, the second bitmap indicates to feed back the perception measurement result corresponding to the 1st group of sampling points in the sampling window #1 and the perception measurement result corresponding to the 1st to 2nd groups of sampling points in the sampling window #2, and the at least one sampling point can include the 1st to 2nd sampling points in the sampling window #1 and the 1st to 4th sampling points in the sampling window #2.

[0295] In some examples, the first information further indicates a third bitmap indicating whether to feed back the perceptual measurement result corresponding to each sampling point in the first group of sampling points in the at least one group of sampling points, in a case that the second bitmap indicates to feed back the perceptual measurement result corresponding to the first group of sampling points in the at least one group of sampling points. In other words, the third bitmap indicates whether each sampling point in the first group of sampling points belongs to the at least one sampling point. Accordingly, the first device can determine the at least one sampling point according to the at least one sampling window, the second bitmap and the third bitmap.

[0296] In some examples, in a case that the second bitmap indicates to feed back the perceptual measurement result corresponding to N groups of sampling points in the at least one group of sampling points, M bits in the third bitmap can correspond to the N groups of sampling points one by one. M and N are positive integers. The M bits can be part or all of the bits in the third bitmap. Each bit in the M bits can be used to indicate whether to feed back the perceptual measurement result corresponding to the sampling point corresponding to the bit. For example, if the value of a certain bit in the M bits is a fifth value (e.g., 1 or 0), it indicates to feed back the perceptual measurement result of the sampling point corresponding to the bit; if the value of a certain bit in the M bits is a sixth value (e.g., 0 or 1), it indicates not to feed back the perceptual measurement result of the sampling point corresponding to the bit. The fifth value and the sixth value are different.

[0297] Optionally, the M bits can be arranged in the order of time from front to back of the sampling points corresponding to the M bits. For example, the at least one sampling window is shown in FIG. 71, the fifth value is 1, the sixth value is 0, and the second bitmap indicates to feed back the perceptual measurement result corresponding to the 1st, 4th and 5th groups of sampling points in the sampling window. If the value of the third bitmap is 111011, the third bitmap indicates to feed back the 1st to 2nd sampling points in the 1st group of sampling points in the sampling window, the 1st sampling point in the 4th group of sampling points in the sampling window, and the 1st to 2nd sampling points in the 5th group of sampling points in the sampling window; accordingly, the at least one sampling point includes the 1st to 2nd, 7th, 9th to 10th sampling points in the sampling window. For another example, the at least one sampling window is shown in FIG. 7J, the fifth value is 1, the sixth value is 0, and the second bitmap indicates to feed back the perceptual measurement result corresponding to the 1st group of sampling points in the sampling window #1 and the 1st to 2nd groups of sampling points in the sampling window #2. If the value of the third bitmap is 111011, the third bitmap indicates to feed back the 1st to 2nd sampling points in the 1st group of sampling points in the sampling window #1, the 1st sampling point in the 1st group of sampling points in the sampling window #2, and the 1st to 2nd sampling points in the 2nd group of sampling points in the sampling window #2; accordingly, the at least one sampling point includes the 1st to 2nd sampling points in the sampling window #1 and the 1st, 3rd to 4th sampling points in the sampling window #2.

[0298] According to the implementation, the first device can accurately determine the at least one sampling window, the second bitmap and the third bitmap according to the first information, and accurately determine the at least one sampling point according to the at least one sampling window, the second bitmap and the third bitmap.

[0299] In addition, in the implementation, the second bitmap indicates whether to feed back the perception measurement result corresponding to each group of sampling points in the at least one group of sampling points, and in a case where the second bitmap indicates to feed back the perception measurement result corresponding to a first group of sampling points in the at least one group of sampling points, the third bitmap indicates whether to feed back the perception measurement result corresponding to each sampling point in the first group of sampling points. In this way, the first device can not feed back the perception measurement result corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the perception measurement result.

[0300] Option b5: The first information comprises an index of the at least one sampling point.

[0301] According to the implementation, the first device can accurately determine the at least one sampling point according to the first information. In addition, in a case where the sampling points for which the perception measurement result is to be fed back are sparse, the implementation can not indicate, for each sampling point, whether to feed back the perception measurement result of the sampling point, thereby saving signaling overhead.

[0302] Optionally, any two of the above-mentioned options b1 to b5 can be independent or combined with each other.

[0303] In some examples, the option b2 and the option b3 can be combined. For example, the first information indicates the at least one sampling window and the first bitmap. The first bitmap indicates whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window. The at least one sampling point can comprise: a sampling point whose corresponding perception measurement result is greater than a first threshold among the sampling points for which the first bitmap indicates to feed back.

[0304] In some examples, the manner b3 and the manner b4 can be combined. For example, the first information indicates the at least one sampling window and a second bitmap. The second bitmap indicates whether to feedback the corresponding perception measurement result of each group of sampling points in the at least one group of sampling points. The at least one sampling point can include: the sampling points in each group of sampling points indicated by the second bitmap to feedback, and the corresponding perception measurement result of which is greater than the first threshold.

[0305] In some examples, the manner b2 and the manner b4 can be combined. For example, the second device can determine whether to use the manner b2 or the manner b4 according to the number of sampling points to feedback the perception measurement result and a number threshold. In a case that the number of sampling points to feedback the perception measurement result is less than the number threshold, the second device can determine to use the manner b4; and / or in a case that the number of sampling points to feedback the perception measurement result is greater than or equal to the number threshold, the second device can determine to use the manner b2. For another example, the second device can determine whether to use the manner b2 or the manner b4 according to the ratio of the number of sampling points to feedback the perception measurement result and the number of sampling points in the at least one sampling window and a ratio threshold. In a case that the ratio is less than the ratio threshold, the second device can determine to use the manner b4; and / or in a case that the ratio is greater than or equal to the ratio threshold, the second device can determine to use the manner b2. The number threshold and / or the ratio threshold can be pre-configured, for example, configured by a protocol, determined by the second device, or indicated by another device (for example, the first device or a core network device) to the second device. Through the example, the second device can determine whether to use the manner b2 or the manner b4 according to the sparsity of the sampling points to feedback the perception measurement result. In a case that the sampling points to feedback the perception measurement result are sparse, the second device can determine to use the manner b4; and / or in a case that the sampling points to feedback the perception measurement result are dense, the second device can determine to use the manner b2.

[0306] Optionally, in the case of combining the manner b2 and the manner b4, the first information can further indicate: whether the manner b2 or the manner b4 is adopted; or the first information can indicate whether the one-layer bitmap or the two-layer bitmap is used to indicate whether the perception measurement result corresponding to the sampling point in the at least one sampling window is fed back; or the first information can indicate whether the bitmap type is one layer or two layers, when the bitmap type is one layer, the manner b2 is adopted, and when the bitmap type is two layers, the manner b4 is adopted.

[0307] In some possible manners, the first information further indicates a sampling frequency of the channel impulse response. The sampling frequency can be related to the bandwidth, for example, the sampling frequency can be greater than or equal to the bandwidth. The bandwidth can be a bandwidth of the sensing resource. The sensing resource can be a part or all of the bandwidth in the full band, for example, can be a bandwidth part (BWP). The sensing resource can overlap with or be independent of the bandwidth of the communication resource.

[0308] Since the sampling frequency of the channel impulse response is associated with the time interval between adjacent sampling points of the channel impulse response, the first information further indicating the sampling frequency of the channel impulse response can be replaced by (or can be understood as) the first information further indicating the time interval between adjacent sampling points of the channel impulse response.

[0309] There can be various manners for the first information to indicate the sampling frequency of the channel impulse response, which are not limited. In some examples, the first information can explicitly indicate the sampling frequency of the channel impulse response. In other examples, the first information can implicitly indicate the sampling frequency of the channel impulse response. For example, the first information can indicate a time interval between adjacent sampling points of the channel impulse response, and the inverse of the time interval can be the sampling frequency of the channel impulse response. For another example, the first information can indicate a distance interval corresponding to adjacent sampling points of the channel impulse response. The distance interval can be used to determine the time interval between adjacent sampling points of the channel impulse response, and thus the sampling frequency of the channel impulse response can be determined. For example, the time interval between adjacent sampling points of the channel impulse response can be the distance interval divided by the speed of light.

[0310] In this way, the first device can accurately determine the time interval between adjacent sampling points of the channel impulse response according to the sampling frequency of the channel impulse response indicated by the first information, and thus can accurately determine the time information of the at least one sampling point according to the first information.

[0311] In some possible implementations, the time interval between adjacent sampling points of the channel impulse response can be determined by the first device in any manner, which is not limited; or can be preset, for example, specified in a protocol. In this way, the first device can accurately determine the time interval between adjacent sampling points of the channel impulse response, and thus can accurately determine the time information of the at least one sampling point according to the first information.

[0312] In some possible implementations, the second information can include: time information corresponding to a reference sampling point corresponding to the at least one sampling point, and at least one of the following: an index of each sampling point in the at least one sampling point; a fourth bit map indicating whether to feed back a perception measurement result corresponding to a sampling point in the at least one sampling window; or a fifth bit map indicating whether to feed back a perception measurement result corresponding to each group of sampling points in one or more groups of sampling points in the at least one sampling window. This is described below respectively.

[0313] 1. The time information corresponding to the reference sampling point corresponding to the at least one sampling point:

[0314] The specific content of the reference sampling point can be referred to the description of the reference sampling point in the manner b1, and will not be described here again.

[0315] For example, the time information corresponding to the reference sampling point can be a time stamp corresponding to the reference sampling point.

[0316] 2. The index of each sampling point in the at least one sampling point:

[0317] For example, if the second information includes the indexes 12, 15, 18, and 20 of the sampling points, it indicates that the at least one sampling point includes the sampling points with the indexes 12, 15, 18, and 20.

[0318] Optionally, in the case where the second information includes the time information corresponding to the reference sampling point corresponding to the at least one sampling point, and the index of each sampling point in the at least one sampling point, the second device can determine the time information corresponding to the at least one sampling point according to the time information corresponding to the reference sampling point and the index of each sampling point in the at least one sampling point. For example, if the time information corresponding to the reference sampling point is t0, the index of the sampling point corresponding to t0 is 10, and the indexes of the at least one sampling point are 12, 15, 18, and 20 respectively, the time information corresponding to the at least one sampling point is t0+2*Δt, t0+5*Δt, t0+8*Δt, and t0+10*Δt respectively. Δt is the time interval between adjacent sampling points of the channel impulse response. In this way, the second device can accurately determine the time information corresponding to the at least one sampling point.

[0319] 3. The fourth bit map:

[0320] The specific content of the fourth bitmap can refer to the description of the first bitmap in the manner b2, except that the first bitmap is replaced by the fourth bitmap, the first device is replaced by the second device, and the first information is replaced by the second information, and details are not described herein.

[0321] Optionally, in the case that the second information includes the time information corresponding to the reference sampling point corresponding to the at least one sampling point, and the fourth bitmap, the second device can determine the at least one sampling window according to the time information corresponding to the reference sampling point, the size of each sampling window in the at least one sampling window, and the offset of the starting position of each sampling window in the at least one sampling window relative to the reference sampling point; and determine the at least one sampling point according to the at least one sampling window and the fourth bitmap.

[0322] The specific content of the size of each sampling window in the at least one sampling window can refer to the description of the size of the second sampling window in the manner a1, or can refer to the description of the size of the first sampling window in the manner a2; the specific content of the offset of the starting position of each sampling window in the at least one sampling window relative to the reference sampling point can refer to the description of the offset of the starting position of the second sampling window relative to the reference sampling point in the manner a1, or can refer to the description of the offset of the starting position of the first sampling window relative to the reference sampling point in the manner a2; details are not described herein. The specific content of the second device determining the at least one sampling point according to the at least one sampling window and the fourth bitmap can refer to the description of the second device determining the at least one sampling point according to the at least one sampling window and the first bitmap in the manner b2, except that the first device is replaced by the second device, and the first bitmap is replaced by the fourth bitmap; details are not described herein.

[0323] In this way, the second device can accurately determine the at least one sampling point, so as to accurately determine the time information corresponding to the at least one sampling point.

[0324] 4. Fifth bitmap:

[0325] The specific content of the fifth bitmap can refer to the description of the second bitmap in the manner b4, except that the second bitmap is replaced by the fifth bitmap, the first device is replaced by the second device, and the first information is replaced by the second information; details are not described herein.

[0326] Optionally, in the case that the fifth bitmap indicates the perception measurement result of the second group of sampling points in the one or more groups of sampling points, the second information further comprises a sixth bitmap, and the sixth bitmap indicates whether the perception measurement result of each sampling point in the second group of sampling points is fed back. The specific content of the sixth bitmap can refer to the description of the third bitmap in manner b4, except that the third bitmap is replaced by the sixth bitmap, the second bitmap is replaced by the fifth bitmap, the first group of sampling points is replaced by the second group of sampling points, the first device is replaced by the second device, and the first information is replaced by the second information, which will not be repeated.

[0327] In some implementations, in the case that the second information comprises the time information corresponding to the reference sampling point corresponding to the at least one sampling point, and the fifth bitmap, the second device can determine the at least one sampling window according to the time information corresponding to the reference sampling point, the size of each sampling window in the at least one sampling window, and the offset of the starting position of each sampling window in the at least one sampling window relative to the reference sampling point; and determine the at least one sampling point according to the at least one sampling window and the fifth bitmap.

[0328] The specific content of the size of each sampling window in the at least one sampling window can refer to the description of the size of the second sampling window in manner a1, or can refer to the description of the size of the first sampling window in manner a2; the specific content of the offset of the starting position of each sampling window in the at least one sampling window relative to the reference sampling point can refer to the description of the offset of the starting position of the second sampling window relative to the reference sampling point in manner a1, or can refer to the description of the offset of the starting position of the first sampling window relative to the reference sampling point in manner a2, which will not be repeated. The specific content of the second device determining the at least one sampling point according to the at least one sampling window and the fifth bitmap can refer to the description of the first device determining the at least one sampling point according to the at least one sampling window and the second bitmap in manner b4, except that the first device is replaced by the second device, and the second bitmap is replaced by the fifth bitmap, which will not be repeated.

[0329] Optionally, in the case that the second information indicates the sixth bitmap, the second device can determine the at least one sampling point according to the at least one sampling window, the fifth bitmap, and the sixth bitmap, the specific content of which can refer to the description of the first device determining the at least one sampling point according to the at least one sampling window, the second bitmap, and the third bitmap in manner b4, except that the first device is replaced by the second device, the second bitmap is replaced by the fifth bitmap, and the third bitmap is replaced by the sixth bitmap, which will not be repeated.

[0330] In this way, the second device can accurately determine the at least one sampling point, and thus can accurately determine the time information corresponding to the at least one sampling point.

[0331] In some possible manners, the second information further indicates a sampling frequency of the channel impulse response, and details can refer to the description of the "first information further indicates a sampling frequency of the channel impulse response" above, except that the first information is replaced with the second information, which will not be repeated here. In this way, the second device can accurately determine the time interval between adjacent sampling points of the channel impulse response according to the sampling frequency of the channel impulse response indicated by the second information, and thus can accurately determine the time information of the at least one sampling point.

[0332] In other possible manners, the time interval between adjacent sampling points of the channel impulse response can be determined by the second device in a manner that is not limited; or can be preset, for example, specified by a protocol. In this way, the second device can accurately determine the time interval between adjacent sampling points of the channel impulse response, and thus can accurately determine the time information of the at least one sampling point.

[0333] The methods shown in FIGS. 8A, 9, and 10 are respectively one possible example of the method shown in FIG. 5.

[0334] In the method shown in FIG. 8A, the terminal and the TRP (including the serving TRP and / or the neighbor TRP) can perform the operation of the first device in the method shown in FIG. 5, and the perception management network element can perform the operation of the second device in the method shown in FIG. 5. In this method, the perception management network element can perform positioning on the perception target in one or more regions of interest by using the Multi-RTT positioning method.

[0335] In the method shown in FIG. 9, the TRP (including the serving TRP and / or the neighbor TRP) can perform the operation of the first device in the method shown in FIG. 5, and the perception management network element can perform the operation of the second device in the method shown in FIG. 5. In this method, the perception management network element can perform positioning on the perception target in one or more regions of interest by using the UL-TDOA positioning method.

[0336] In the method shown in FIG. 10, the terminal can perform the operation of the first device in the method shown in FIG. 5, and the perception management network element can perform the operation of the second device in the method shown in FIG. 5. In this method, the perception management network element can perform positioning on the perception target in one or more regions of interest by using the DL-TDOA positioning method.

[0337] Optionally, in the method shown in FIG. 8A and FIG. 9 to FIG. 10, the TRP can be replaced by other access network devices, for example, can be replaced by a gNB; and / or, the uplink sensing signal is, for example, an uplink SRS (UL-SRS) or SRS; and / or, the downlink sensing signal is, for example, a downlink PRS (DL-PRS) or PRS.

[0338] Optionally, in the method shown in FIG. 8A and FIG. 9 to FIG. 10, the number of terminals can be one or more, and each terminal can perform the operation of the terminal in the method shown in FIG. 10 to FIG. 12.

[0339] As shown in FIG. 8A, the method comprises:

[0340] S801: The sensing management network element and a plurality of TRPs perform TRP information exchange.

[0341] The plurality of TRPs can include a serving TRP and a neighboring TRP of the terminal.

[0342] Optionally, the TRP information exchange can be NRPPa (NR Positioning Protocol A) TRP information exchange.

[0343] S802: The sensing management network element and the terminal perform capability transfer.

[0344] Optionally, the sensing management network element can obtain the capability information of the terminal through the capability transfer. The capability information of the terminal can include the positioning capability information of the terminal.

[0345] Optionally, the capability transfer can be LPP (LTE positioning protocol) capability transfer.

[0346] The order of S801 and S802 in the present application is not limited.

[0347] S803: The sensing management network element sends a sensing information request message to the serving TRP.

[0348] The sensing information request message is used to request to obtain the uplink information of the terminal.

[0349] The sensing information request message can also have other names, for example, a positioning information request message, etc., which is not limited.

[0350] S804: The serving TRP determines the resource for transmitting the uplink sensing signal.

[0351] S805: The serving TRP sends resource configuration information to the terminal, which can configure resources for transmitting the uplink sensing signal.

[0352] Optionally, the resource configuration information can be an RRC message.

[0353] S806: The serving TRP sends a sensing information response message to the sensing management network element.

[0354] The sensing information response message can indicate the resource configuration information; or the sensing information response message can provide uplink sensing signal configuration information.

[0355] The sensing information response message can also have other names, such as a positioning information response message, etc., without limitation.

[0356] S807: For a semi-statically configured uplink sensing signal or an aperiodic uplink sensing signal, the sensing management network element can send a sensing activation request message to the serving TRP.

[0357] The sensing activation request message is used to request to activate the uplink sensing signal transmission of the terminal, for example, can be used to request to activate the transmission of the SRS of the terminal (activation of UE SRS transmission).

[0358] The sensing activation request message can also have other names, such as a positioning activation request message, an NRPPa sensing activation request message, or an NRPPa positioning activation request message, etc., without limitation.

[0359] S808: The serving TRP activates the uplink sensing signal transmission of the terminal.

[0360] For example, the serving TRP can send a message (e.g., MAC CE or DCI) to the terminal for activating the uplink sensing signal transmission of the terminal.

[0361] After the serving TRP activates the uplink sensing signal transmission of the terminal, the terminal transmits the uplink sensing signal according to the resources configured by the resource configuration information.

[0362] S809: The serving TRP sends a sensing activation response message to the sensing management network element.

[0363] The sensing activation response message can also have other names, such as a positioning activation response message, an NRPPa sensing activation response message, or an NRPPa positioning activation response message, etc., without limitation.

[0364] S810: The perception management network element sends a measurement request message to the selected TRP.

[0365] The selected TRP can include a serving TRP and a neighbor TRP; or the selected TRP can include multiple neighbor TRPs. The selected TRP can be three or more TRPs.

[0366] The measurement request message can include all information required for the selected TRP to perform the measurement.

[0367] Optionally, the measurement request message can include the first information in S501, which can be used to determine at least one sampling point, which can be associated with one or more regions of interest. The specific content of the first information can refer to the description of the first information in the method shown in FIG. 5, and will not be repeated here.

[0368] For example, the measurement request message can be as shown in Table 1.

[0369] Table 1

[0370] Among them, one or more of the CIR reference type, the CIR window size, the CIR window offset, the sampling time interval, the bit pattern and the CIR threshold can be included in the first information. The bit pattern can be the first bit pattern in the first information, or can be the second bit pattern in the first information, or can include the second bit pattern and the third bit pattern in the first information. The CIR threshold can be the first threshold in the first information. The specific content of the first bit pattern, the second bit pattern, the third bit pattern and the first threshold can refer to the description of the first bit pattern, the second bit pattern, the third bit pattern and the first threshold in the method shown in FIG. 5, respectively, and will not be repeated here.

[0371] It should be understood that Table 1 is only an example, and the new table content obtained by reasonable deformation or supplement or deletion of the content in Table 1 belongs to the protection scope of the present application. It should also be understood that the above Table 1 takes the UL-SRS as an example to illustrate the uplink sensing signal, and the uplink sensing signal can also be other sensing signals, which are not limited.

[0372] The measurement request message can have other names, such as NRPPa measurement request message, which are not limited.

[0373] S811: The perception management network element sends a provide assistance data message to the terminal.

[0374] The provide assistance data message can include assistance data for the terminal to perform downlink sensing signal measurement.

[0375] The assistance data message can be referred to by other names, for example, an LPP assistance data message, without limitation.

[0376] S812: The sensing management network element sends a request sensing information message to the terminal.

[0377] The request sensing information message can be used to request Multi-RTT measurements.

[0378] Optionally, the request sensing information message can include the first information in S501, which can be used to determine at least one sampling point, which can be associated with one or more regions of interest. The specific content of the first information can refer to the description of the first information in the method shown in FIG. 5, and will not be repeated here.

[0379] Exemplarily, the request sensing information message can be as shown in Table 2.

[0380] Table 2

[0381] Among them, one or more of the CIR reference type, the CIR window size, the CIR window offset, the sampling time interval, the bit pattern bitmap and the CIR threshold value can be included in the first information. The bit pattern bitmap can be a first bit pattern bitmap in the first information, or can be a second bit pattern bitmap in the first information, or can include a second bit pattern bitmap and a third bit pattern bitmap in the first information. The CIR threshold value can be a first threshold value in the first information. The specific content of the first bit pattern bitmap, the second bit pattern bitmap, the third bit pattern bitmap and the first threshold value can refer to the description of the first bit pattern bitmap, the second bit pattern bitmap, the third bit pattern bitmap and the first threshold value in the method shown in FIG. 5, respectively, and will not be repeated here.

[0382] It should be understood that Table 2 is only an example, and the new table content obtained by reasonable deformation or supplement or deletion of the content in Table 2 is within the protection scope of the present application. It should also be understood that Table 2 below takes the downlink PRS as an example to illustrate the downlink sensing signal, and the downlink sensing signal can also be other sensing signals, without limitation.

[0383] The request sensing information message can be referred to by other names, for example, an LPP request sensing information message, a request location information message, an LPP request location information message, without limitation.

[0384] S813: The terminal measures the downlink sensing signal from the selected TRP.

[0385] S814: The terminal sends a provide sensing information message to the sensing management network element.

[0386] The providing sensing information message can comprise the second information in S502, the second information indicating the sensing measurement result corresponding to the at least one sampling point. The sensing measurement result corresponding to the at least one sampling point can be obtained by the terminal measuring the downlink sensing signal from the selected TRP at the at least one sampling point. The specific content of the second information can refer to the description of the second information in the method shown in FIG. 5, and will not be repeated here.

[0387] For example, the providing sensing information message can be as shown in Table 3.

[0388] Table 3

[0389] Among them, one or more of the timestamp of the reference radius, the CIR list and the bit pattern of the bitmap can be contained in the second information. The bit pattern of the bitmap can be the fourth bit pattern of the second information, or can be the fifth bit pattern of the second information, or can include the fifth bit pattern and the sixth bit pattern of the second information. The threshold can be the first threshold in the first information. The specific content of the fourth bit pattern, the fifth bit pattern, the sixth bit pattern and the first threshold can refer to the description of the fourth bit pattern, the fifth bit pattern, the sixth bit pattern and the first threshold in the method shown in FIG. 5, respectively, and will not be repeated here.

[0390] Optionally, in Table 3, the CIR list can include: sampling point index, I component and Q component; or the CIR list can include: sampling point index, amplitude and phase.

[0391] It should be understood that Table 3 is only an example, and the new table content obtained by reasonable deformation or supplement or deletion of the content in Table 3 belongs to the protection scope of the present application.

[0392] The providing sensing information message can have other names, such as LPP providing sensing information message, providing location information message, LPP providing location information message, without limitation.

[0393] S815: The selected TRP measures the uplink sensing signal from the terminal.

[0394] S816: The selected TRP sends a measurement response message to the sensing management network element.

[0395] The measurement response message can comprise the second information in S502, the second information indicating the sensing measurement result corresponding to the at least one sampling point. The sensing measurement result corresponding to the at least one sampling point can be obtained by the terminal measuring the downlink sensing signal from the selected TRP at the at least one sampling point. The specific content of the second information can refer to the description of the second information in the method shown in FIG. 5, and will not be repeated here.

[0396] For example, the measurement response message can be as shown in Table 4.

[0397] Table 4

[0398] The one or more of the timestamp of the reference path, the CIR list and the bitmap pattern can be included in the second information. The bitmap pattern can be a fourth bitmap in the second information, or can be a fifth bitmap in the second information, or can include the fifth bitmap and a sixth bitmap in the second information. The threshold can be a first threshold in the first information. The specific content of the fourth bitmap, the fifth bitmap, the sixth bitmap and the first threshold can refer to the description of the fourth bitmap, the fifth bitmap, the sixth bitmap and the first threshold in the method shown in FIG. 5, and will not be repeated here.

[0399] Optionally, in Table 4, the CIR list can include: a sampling point index, an I component and a Q component; or the CIR list can include: a sampling point index, an amplitude and a phase.

[0400] It should be understood that Table 4 is only an example, and the new table content obtained by reasonable deformation or supplement or deletion of the content in Table 4 is also within the protection scope of the present application.

[0401] The measurement response message can have other names, such as NRPPa measurement response message, which is not limited.

[0402] The order of S813-S814 and S815-S816 in the present application is not limited.

[0403] S817: The sensing management network element sends a sensing deactivation message to the serving TRP.

[0404] The sensing deactivation request message is used to request to deactivate the uplink sensing signal transmission of the terminal, for example, can be used to request to deactivate the transmission of UE SRS (deactivation of UE SRS transmission).

[0405] Optionally, the sensing deactivation message can be a MAC CE.

[0406] S818: The sensing management network element determines the sensing result.

[0407] For example, as shown in (1) of FIG. 8B, the perception management network element can determine that the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP2 is R54=R5-R4=(R0+R5)-(R0+R4); and the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP3 is R64=R6-R4=(R0+R6)-(R0+R4). Then, the perception target is located on hyperbola 3 with TRP1 and TRP2 as foci and the distance difference between the two foci being R54, and is also located on hyperbola 4 with TRP1 and TRP3 as foci and the distance difference between the two foci being R64. That is, the perception target is located at the intersection of hyperbola 3 and hyperbola 4. The perception management network element can determine the position of the perception target according to the positions of TRP1 to TRP3 and hyperbola 3 and hyperbola 4.

[0408] In the following examples, the plurality of TRPs includes TRP1 to TRP3. The distance from the terminal to the perception target is R0, the distance from the perception target to TRP1 is R4, the distance from the perception target to TRP2 is R5, and the distance from the perception target to TRP3 is R6. The perception management network element can determine, according to the perception measurement results received in S814 and S816, that the distance from the terminal to TRP1 via the perception target is R0+R4, the distance from the terminal to TRP2 via the perception target is R0+R5, and the distance from the terminal to TRP3 via the perception target is R0+R6.

[0409] For example, as shown in (1) of FIG. 8B, the perception management network element can determine that the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP2 is R54=R5-R4=(R0+R5)-(R0+R4); and the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP3 is R64=R6-R4=(R0+R6)-(R0+R4). Then, the perception target is located on hyperbola 3 with TRP1 and TRP2 as foci and the distance difference between the two foci being R54, and is also located on hyperbola 4 with TRP1 and TRP3 as foci and the distance difference between the two foci being R64. That is, the perception target is located at the intersection of hyperbola 3 and hyperbola 4. The perception management network element can determine the position of the perception target according to the positions of TRP1 to TRP3 and hyperbola 3 and hyperbola 4.

[0410] For example, as shown in (1) of FIG. 8B, the perception management network element can determine that the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP2 is R54=R5-R4=(R0+R5)-(R0+R4); and the distance difference between the distance from the perception target to TRP1 and the distance from the perception target to TRP3 is R64=R6-R4=(R0+R6)-(R0+R4). Then, the perception target is located on hyperbola 3 with TRP1 and TRP2 as foci and the distance difference between the two foci being R54, and is also located on hyperbola 4 with TRP1 and TRP3 as foci and the distance difference between the two foci being R64. That is, the perception target is located at the intersection of hyperbola 3 and hyperbola 4. The perception management network element can determine the position of the perception target according to the positions of TRP1 to TRP3 and hyperbola 3 and hyperbola 4.

[0411] Optionally, in the above examples, the terminal can be replaced by a TRP, and the TRP can be replaced by a terminal. The perception management network element can determine the position of the perception target according to the positions of a plurality of terminals.

[0412] Optionally, in the method shown in FIG. 8A, S801 to S809, S811, S813, S815, S817 to S818 are optional steps. The order of S810 to S812 is not limited; the order of S817 and S818 is not limited.

[0413] Through the method shown in FIG. 8A, the perception management network element can perform positioning on the perception target in one or more regions of interest according to the Multi-RTT positioning method.

[0414] As shown in FIG. 9, the method comprises:

[0415] S901: The perception management network element and the plurality of TRPs perform TRP information exchange.

[0416] S902: The perception management network element and the terminal perform capability transfer.

[0417] S903: The perception management network element sends a sensing information request message to the serving TRP.

[0418] S904: The serving TRP determines the resource for transmitting the uplink sensing signal.

[0419] S905: The serving TRP sends resource configuration information to the terminal, and the resource configuration information can configure the resource for transmitting the uplink sensing signal.

[0420] S906: The serving TRP sends a sensing information response message to the perception management network element.

[0421] S907: For the semi-static configured uplink sensing signal or the aperiodic uplink sensing signal, the perception management network element can send a sensing activation request message to the serving TRP.

[0422] S908: The serving TRP activates the uplink sensing signal transmission of the terminal.

[0423] S909: The serving TRP sends a sensing activation response message to the perception management network element.

[0424] The specific content of S901 to S909 can refer to S801 to S809, which will not be described here.

[0425] S910: The terminal transmits an uplink sensing signal; correspondingly, the multiple TRPs can receive the echo signal of the uplink sensing signal.

[0426] Exemplarily, in S901, the terminal can transmit an uplink sensing signal (as shown in S910a in FIG. 9); the uplink sensing signal first reaches the sensing target through wireless transmission, and then reaches each of the multiple TRPs after the action (for example, reflection, scattering or diffraction, etc.) of the sensing target, that is, the multiple TRPs can receive the uplink sensing signal (as shown in S910b in FIG. 9). That is, S901 can include S910a and S910b. It should be understood that the sensing signal can be transmitted from the terminal to each TRP through one or more transmission paths, and only one is shown in the figure.

[0427] S911: The sensing management network element transmits a measurement request message to the multiple TRPs.

[0428] The specific content of S911 can be referred to S810, except that the selected TRP is replaced by the multiple TRPs, and details are not repeated.

[0429] S912: The multiple TRPs measure the uplink sensing signal from the terminal.

[0430] S913: The multiple TRPs transmit a measurement response message to the sensing management network element.

[0431] The specific content of S912 to S913 can be referred to S815 to S816, except that the selected TRP is replaced by the multiple TRPs, and details are not repeated.

[0432] S914: The sensing management network element transmits a sensing deactivation message to the serving TRP.

[0433] The specific content of S914 can be referred to S817, and details are not repeated.

[0434] S915: The sensing management network element determines the sensing result.

[0435] Exemplarily, the sensing management network element can determine the receiving time of the multiple reflection paths corresponding to the sensing target in the area of interest according to the sensing measurement result received in S913, so as to determine the position of the sensing target in the area of interest according to the multiple receiving times. The specific manner can be referred to the description of the UL-TDOA positioning method in the term explanation part, and details are not repeated.

[0436] Optionally, in the method shown in FIG. 9, S901 to S910, S912, S914 to S915 are optional steps. The order of S914 and S915 is not limited.

[0437] By the method shown in FIG. 9, the perception management network element can perform positioning on the perception target in one or more regions of interest according to the UL-TDOA positioning method.

[0438] As shown in FIG. 10, the method comprises:

[0439] S1001: The perception management network element and the plurality of TRPs perform TRP information exchange.

[0440] S1002: The perception management network element and the terminal perform capability transfer.

[0441] The specific content of S1001 to S1002 can refer to S801 to S802, and will not be repeated here.

[0442] S1003: The terminal sends a request assistance data message to the perception management network element.

[0443] The request assistance data message can request assistance data for the terminal to perform downlink perception signal measurement.

[0444] The request assistance data message can have other names, for example, LPP request assistance data message, which is not limited.

[0445] S1004: The perception management network element sends a provide assistance data message to the terminal.

[0446] The specific content of S1004 can refer to S811, and will not be repeated here.

[0447] S1005: The perception management network element can send a sensing activation request message to the serving TRP.

[0448] Optionally, the sensing activation request message can request to activate the perception of the downlink perception signal.

[0449] The sensing activation request message can also have other names, for example, positioning activation request message, NRPPa sensing activation request message, or NRPPa positioning activation request message, etc., which is not limited.

[0450] S1006: The serving TRP can send a sensing activation request message to the terminal.

[0451] S1007: The terminal sends a sensing activation response message to the serving TRP.

[0452] The sensing activation response message can also be referred to as other names, such as a positioning activation response message, an NRPPa sensing activation response message, or an NRPPa positioning activation response message, without limitation.

[0453] S1008: The serving TRP sends a sensing activation response message to the sensing management network element.

[0454] S1009: The plurality of TRPs respectively send downlink sensing signals; correspondingly, the terminal receives the downlink sensing signals from the plurality of TRPs.

[0455] Exemplarily, in S1009, each TRP of the plurality of TRPs can send a downlink sensing signal (as shown in S1009a in FIG. 10); the downlink sensing signal first reaches the sensing target through wireless transmission, and then reaches the terminal after the sensing target action (for example, reflection, scattering, or diffraction, etc.), that is, the terminal can receive the downlink sensing signal (as shown in S1009b in FIG. 10). That is, S1009 includes S1009a and S1009b. It should be understood that the sensing signal can be transmitted from each TRP to the terminal through one or more transmission paths, and only one is shown in the figure.

[0456] S1010: The sensing management network element sends a request sensing information message to the terminal.

[0457] The request sensing information message can be used to request to obtain sensing measurement results.

[0458] Optionally, the request sensing information message can include the first information in S501, and the first information can be used to determine at least one sampling point, which can be associated with one or more regions of interest. The specific content of the first information can refer to the description of the first information in the method shown in FIG. 5, and will not be repeated here.

[0459] Exemplarily, the request sensing information message can be the request sensing information message in S812.

[0460] S1011: The terminal measures the downlink sensing signals from the plurality of TRPs.

[0461] S1012: The terminal sends a provide sensing information message to the sensing management network element.

[0462] Optionally, the providing the sensing information message can comprise a second information in S502, the second information indicating the sensing measurement result corresponding to the at least one sampling point. The sensing measurement result corresponding to the at least one sampling point can be obtained by the terminal performing measurement on the downlink sensing signals from the plurality of TRPs at the at least one sampling point. The specific content of the second information can refer to the description of the second information in the method shown in FIG. 5, and will not be repeated here.

[0463] For example, the providing the sensing information message can be the providing the sensing information message in S814.

[0464] S1013: The sensing management network element sends a sensing deactivation message to the serving TRP.

[0465] Optionally, the sensing deactivation request message can request to deactivate the sensing measurement on the downlink sensing signals.

[0466] The sensing deactivation request message can also have other names, such as a positioning deactivation request message, an NRPPa sensing deactivation request message, or an NRPPa positioning deactivation request message, etc., which are not limited.

[0467] S1014: The serving TRP sends a sensing deactivation message to the terminal.

[0468] S1015: The sensing management network element determines the sensing result.

[0469] For example, the sensing management network element can determine the receiving time of the plurality of reflection paths corresponding to the sensing target in the region of interest according to the sensing measurement result received in S1012, so as to determine the position of the sensing target in the region of interest according to the plurality of receiving times. The specific manner can refer to the description of the DL-TDOA positioning method in the term explanation part, and will not be repeated here.

[0470] Optionally, in the method shown in FIG. 10, S1001 to S1009, S1011, S1013 to S1015 are optional steps. The order of any one of S1013 and S1014 and S1015 is not limited.

[0471] Through the method shown in FIG. 10, the sensing management network element can perform positioning on the sensing target in one or more regions of interest according to the DL-TDOA positioning method.

[0472] Based on the same technical concepts as the above method embodiments, the embodiments of the present application provide corresponding communication devices that can be used to perform the functions of the related steps in the above method embodiments. The functions can be implemented by hardware, by software, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. The communication device can be a terminal or an access network device, or can be a device (for example, a module, a communication module, a circuit or a chip responsible for communication functions and / or sensing functions (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in a terminal or an access network device, or can be a logic node, a logic module, or software that can implement all or part of the terminal or function.

[0473] In one possible implementation, the structure of the communication device provided by the embodiments of the present application is shown in FIG. 11, which includes a processing unit 1102. Optionally, the communication device also includes an interface unit 1101. The functions of each unit in the communication device 1100 are introduced below.

[0474] The interface unit 1101 is configured to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When outputting information, the interface unit 1101 can output information to other devices outside the communication device 1100, or output information to other units in the communication device 1100. In some manners, the interface unit 1101 can be implemented by at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other manners, the interface unit 1101 can be implemented by an interface circuit, for example, a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The interface unit 1101 is configured to perform the receiving operation and the transmitting operation in the above method embodiments.

[0475] In the present application, the interface unit 1101 can also have other names, such as a transceiver unit or a communication unit. Optionally, the interface unit 1101 can include a receiving unit and a transmitting unit, which are configured to input and output information, respectively. The receiving unit is configured to perform the receiving operation in the above method embodiments. The transmitting unit is configured to perform the transmitting operation in the above method embodiments.

[0476] The processing unit 1102 can be configured to support the communication device 1100 to perform the processing actions in the above method embodiments. The processing unit 1102 can be implemented by one or more processors. For example, the processor can be a central processing unit (CPU), and can also be other general purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA), microcontroller units (MCU), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general purpose processor can be a microprocessor, or any conventional processor. The processing unit 1102 is configured to perform operations related to processing in the above method embodiments, for example, operations in the above method embodiments other than receiving operations and sending operations.

[0477] In an embodiment, the communication device 1100 is applied to the first device in the embodiment of FIG. 5. The specific functions of the processing unit 1102 in this embodiment are described below.

[0478] The processing unit 1102 is configured to: receive, through the interface unit 1101, first information used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; and send, through the interface unit 1101, second information indicating a perception measurement result corresponding to the at least one sampling point.

[0479] In another embodiment, the communication device 1100 is applied to the second device in the embodiment of FIG. 5. The specific functions of the processing unit 1102 in this embodiment are described below.

[0480] The processing unit 1102 is configured to: send, through the interface unit 1101, first information used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; and receive, through the interface unit 1101, second information indicating a perception measurement result corresponding to the at least one sampling point.

[0481] In one possible design, the processing unit 1102 can be implemented by one or more processors when the communication apparatus 1100 is a communication device or a communication module in a communication device. For example, the processor(s) can include a modem chip, or a system on chip (SoC) chip or a SIP chip that includes a modem core.

[0482] In one possible design, the processing unit 1102 can be implemented by circuitry including one or more processors or processor cores in a chip that is responsible for communication functions and / or sensing functions in a communication device, such as a modem chip or a system on chip (SoC) chip or a SIP chip that includes a modem core. The interface unit 1101 can be implemented by interface circuitry or data transceiver circuitry on the chip.

[0483] The communication device can be a terminal or an access network device.

[0484] More detailed descriptions of the processing unit 1102 and the interface unit 1101 can be found in the descriptions of the method embodiments shown in FIGS. 5-10, which are not repeated here.

[0485] It is noted that the division of modules in the above embodiments is illustrative only, and is merely a logical function division, and another division manner can be used in actual implementation. In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or can be physically separated, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of software function unit, or in the form of combination of hardware and software. Whether a certain function is implemented in hardware or software manner depends on the specific application and design constraint conditions of the technical solution. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0486] For example, the functional units in any of the above apparatuses can be one or more integrated circuits configured to implement the above methods, such as one or more ASICs, one or more CPUs, one or more MCUs, one or more DSPs, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.

[0487] The integrated unit described above, if realized in the form of a software function unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the present application essentially or the part of the prior art that contributes to the technical solutions or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0488] In a possible implementation, the communication apparatus provided by the embodiments of the present application is shown in FIG. 12. The communication apparatus 1200 includes a processor 1202. Optionally, the communication apparatus 1200 further includes an interface circuit 1201 and a memory 1203. The interface circuit 1201, the processor 1202 and the memory 1203 are coupled with each other.

[0489] Optionally, the interface circuit 1201, the processor 1202 and the memory 1203 are coupled with each other through a bus 1204. The bus 1204 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is shown in FIG. 12, but it does not mean that there is only one bus or only one type of bus.

[0490] The interface circuit 1201 is configured to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When the information is output, the interface circuit 1201 can output the information to other devices outside the communication apparatus 1200, or output the information to other units in the communication apparatus 1200. For example, the interface circuit 1201 can be implemented by at least one of a physical interface, a communication module, a communication interface, an input / output interface, and a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, an LNA, etc. The interface circuit 1201 is configured to perform the receiving operation and the transmitting operation in the above method embodiments.

[0491] The interface circuit 1201 can be one of a transceiver, a transceiving circuit, a communication circuit, an interface, a communication interface, or an input / output interface (for example, an input / output interface of a chip). The interface circuit 1201 can include an input interface circuit and an output interface circuit for inputting and outputting information respectively. The input interface circuit is configured to perform the receiving operation in the above method embodiments. The output interface circuit is configured to perform the sending operation in the above method embodiments.

[0492] The transceiver can be configured to communicate with other communication devices. For example, the communication device 1200 is a terminal, and the transceiver can be configured to communicate with an access network device or another terminal. For another example, the communication device 1200 is an access network device, and the transceiver can be configured to communicate with a terminal or another access network device.

[0493] Optionally, the transceiver can include a receiver and a transmitter. The receiver is configured to perform the receiving operation in the above method embodiments. The transmitter is configured to perform the sending operation in the above method embodiments.

[0494] Optionally, the transceiver can be integrated with the processor 1202 or exist independently and be coupled with the processor 1202 through the interface circuit of the communication device 1200, and the embodiments of the present application do not make a specific limitation in this regard.

[0495] The processor 1202 can be configured to support the communication device 1200 to perform the processing actions in the above method embodiments. When the communication device 1200 is configured to implement the above method embodiments, the processor 1202 can also be configured to implement the functions of the processing unit 1102 described above. The processor 1202 can be a CPU, and also can be other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor. The processor 1202 is configured to perform operations related to processing in the above method embodiments, for example, operations other than the receiving operation and the sending operation in the above method embodiments.

[0496] In an embodiment, the communication device 1200 is applied to the first device in the embodiment of the present application shown in FIG. 5. The specific functions of the processor 1202 in this embodiment are introduced as follows.

[0497] The processor 1202 is configured to: receive first information through the interface circuit 1201, the first information being used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; and send second information through the interface circuit 1201, the second information indicating a perception measurement result corresponding to the at least one sampling point.

[0498] In another embodiment, the communication apparatus 1200 is applied to the second device in the embodiments of the present application as shown in FIG. 5. The specific functions of the processor 1202 in this embodiment are described as follows.

[0499] The processor 1202 is configured to send, through the interface circuit 1201, first information used to determine at least one sampling point associated with one or more regions of interest; and receive, through the interface circuit 1201, second information indicating a perception measurement result corresponding to the at least one sampling point.

[0500] The specific functions of the processor 1202 can refer to the description of the communication method in the embodiments of the present application and the examples provided above, and the description of the specific functions of the communication apparatus 1100 in the embodiments of the present application as shown in FIG. 11, which will not be repeated here.

[0501] The memory 1203 is configured to store program instructions and / or data, etc. Specifically, the program instructions can include program codes including computer operation instructions. The memory 1203 can include RAM and can also include non-volatile memory such as at least one disk memory. The processor 1202 executes the program instructions stored in the memory 1203 and uses the data stored in the memory 1203 to achieve the above functions, thereby achieving the communication method provided by the above embodiments of the present application. The memory 1203 can be integrated with the processor 1202, or can be a memory outside the communication apparatus.

[0502] It is to be appreciated that the memory 1203 in FIG. 12 of the present application can be volatile, nonvolatile, or a combination of volatile and non-volatile memory. In one example, the non-volatile memory can be ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically EPROM (EEPROM), or flash memory. The volatile memory can be RAM, which acts as external cache. By way of example and not limitation, many forms of RAM are suitable, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It is to be appreciated that the memory described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0503] Based on the above embodiment, the embodiment of the present application further provides a computer program product including computer executable instructions, when the computer program product is executed, the method provided by the above embodiment is executed.

[0504] Based on the above embodiment, the embodiment of the present application further provides a computer readable storage medium, the computer readable storage medium stores a computer program, when the computer program is executed by a computer, the computer executes the method provided by the above embodiment.

[0505] The storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or any other

[0506] Based on the above embodiment, the embodiment of the present application further provides a chip for reading a computer program stored in a memory, and implementing the method provided by the above embodiment.

[0507] Based on the above embodiments, the embodiments of the present application provide a chip system, which comprises a processor for supporting a computer device to realize the functions related to the devices in the above embodiments. In a possible design, the chip system further comprises a memory for storing the necessary programs and data of the computer device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0508] In each of the embodiments of the present application, the terms and / or descriptions in different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0509] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0510] These computer program instructions can also be stored in a computer readable memory capable of guiding the computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer readable memory produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0511] These computer program instructions can also be loaded into a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0512] In this application, the terms "system" and "network" can be interchangeably used. "At least one" means one or more, and "multiple" means two or more. "And / or" describes the associated relationship of associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent: A exists alone, A and B exist together, B exists alone, where A, B can be singular or plural. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. In the character description of this application, the character " / ", generally indicates that the associated objects before and after are a kind of "or" relationship; In the formula description of this application, the character " / ", generally indicates that the associated objects before and after are a kind of "division" relationship.

[0513] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic.

[0514] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A communication method characterized by comprising: Comprising: receiving first information, the first information being used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; sending second information, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

2. The method of claim 1, wherein, The one or more regions of interest are regions where a to-be-measured object is located; and / or, the one or more regions of interest are regions to be measured.

3. The method of claim 1 or 2, wherein, The at least one sampling point being associated with one or more regions of interest comprises: The at least one sampling point belongs to at least one sampling window, the at least one sampling window being one sampling window associated with the one or more regions of interest, or each sampling window in the at least one sampling window being associated with one region of interest in the one or more regions of interest.

4. The method of claim 3, wherein, The at least one sampling window being one sampling window associated with the one or more regions of interest comprises: The size of the one sampling window is associated with d max1 and / or the starting position of the one sampling window relative to a reference sample point is associated with d min1 and / or d min1 and / or d ref . wherein d max1 is the maximum value of d i is the minimum value of d min1 is the minimum value of d i , For a point P in the one or more regions of interest i and the distance between the transmitting device of the perception signal, for a point P in the one or more regions of interest i and a distance, d, between the receiving device and the perception signal ref for a distance between the transmitting device and the receiving device.

5. The method of claim 4, wherein, a size W of the one sampling window length1 satisfies one of the following equations: or and / or the offset W of the start position of the one sampling window relative to the reference sample point offset1 satisfies one of the following equations: or where c is the speed of light, and At is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, The down-rounding operation is denoted by floor(), and the rounding operation is denoted by round().

6. The method of claim 3, wherein, The at least one sampling window comprises a first sampling window, The size of the first sampling window and d max2 and d min2 Correlation; and / or, the offset of the starting position of the first sampling window relative to the reference sampling point, and d min2 and d ref Related, where d max2 is the maximum value of d j , d min2 is the minimum value of d j , For a point P in the first region of interest j and the distance between the transmitting device of the perception signal, for a point P in the first region of interest j and a distance between the receiving device of the perception signal, the first region of interest being the region of interest of the one or more regions of interest associated with the first sampling window, d ref is a distance between the transmitting device and the receiving device.

7. The method of claim 6, wherein, a size W of the first sampling window length2 satisfies one of the following equations: or and / or an offset W of a start position of the first sampling window with respect to a reference sample point offset2 satisfies one of the following equations: or where c is the speed of light, and Δt is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, The down-rounding operation is denoted by floor(), and the rounding operation is denoted by round().

8. The method according to any one of claims 1 to 7, characterized in that, The first information being used to determine at least one sampling point comprises at least one of the following: The first information indicates at least one sampling window, and the at least one sampling point comprises all sampling points in the at least one sampling window; The first information indicates the at least one sampling window and a first bitmap, the first bitmap indicating whether to feed back a sensing measurement result corresponding to a sampling point in the at least one sampling window; The first information indicates the at least one sampling window, and the at least one sampling point comprises a sampling point in the at least one sampling window whose corresponding sensing measurement result is greater than a first threshold value; Or The first information indicates the at least one sampling window and a second bitmap, the second bitmap indicating whether to feed back a sensing measurement result corresponding to each group of sampling points in at least one group of sampling points, the at least one group of sampling points belonging to the at least one sampling window.

9. The method of claim 8, wherein, In a case where the second bitmap indicates to feed back a sensing measurement result corresponding to a first group of sampling points in the at least one group of sampling points, the first information further indicates a third bitmap, the third bitmap indicating whether to feed back a sensing measurement result corresponding to each sampling point in the first group of sampling points.

10. The method of claim 8 or 9, wherein, The first information indicating the at least one sampling window comprises: The first information indicates at least one of the following: an offset of a reference position of each sampling window in the at least one sampling window relative to a reference sampling point, a size of each sampling window in the at least one sampling window, or a period of each sampling window in the at least one sampling window.

11. The method of claim 10, wherein, The first information further indicates a type of the reference sampling point, the type of the reference sampling point comprising at least one of the following: A sampling point corresponding to a direct view diameter, a sampling point with a strongest corresponding sensing measurement result, or a sampling point agreed by a common clock.

12. The method of any one of claims 1 to 11, wherein, The first information further indicates a sampling frequency of a channel impulse response.

13. The method of any one of claims 1 to 12, wherein, The second information comprises: time information corresponding to a reference sampling point corresponding to the at least one sampling point, and at least one of the following: an index of each sampling point in the at least one sampling point; a fourth bit map indicating whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window; or a fifth bit map indicating whether to feed back the perception measurement result corresponding to each group of sampling points in one or more groups of sampling points in the at least one sampling window.

14. The method of claim 13, wherein, In a case where the fifth bit map indicates to feed back the perception measurement result corresponding to a second group of sampling points in the one or more groups of sampling points, the second information further comprises a sixth bit map indicating whether to feed back the perception measurement result corresponding to each sampling point in the second group of sampling points.

15. The method of any one of claims 1 to 14, wherein, The second information further indicates a sampling frequency of a channel impulse response.

16. The method of any one of claims 1 to 15, wherein, The perception measurement result comprises: channel impulse response information, and / or information of a perception target.

17. The method of claim 16, wherein, The channel impulse response information comprises at least one of the following: in-phase component information and quadrature component information of the channel impulse response; or amplitude information and phase information of the channel impulse response.

18. The method of any one of claims 1 to 17, wherein, The method is applied to a cellular network.

19. A method of communication, comprising: Comprises: sending first information for determining at least one sampling point, the at least one sampling point being associated with one or more regions of interest; receiving second information indicating a perception measurement result corresponding to the at least one sampling point.

20. The method of claim 19, wherein, The one or more regions of interest are regions where a to-be-measured object is located; and / or the one or more regions of interest are regions to be measured.

21. The method of claim 19 or 20, wherein, The at least one sampling point being associated with one or more regions of interest comprises: The at least one sampling point belongs to at least one sampling window, and each sampling window in the at least one sampling window is associated with one region of interest in the one or more regions of interest.

22. The method of claim 21, wherein, The at least one sampling window comprises one sampling window associated with the one or more regions of interest, and the at least one sampling window comprises one sampling window associated with the one or more regions of interest. The size of the one sampling window is associated with d max1 and d min1 The starting position of the one sampling window relative to a reference sample point is associated with d min1 and d ref ​ where d max1 is the maximum value of d i is the minimum value of d min1 , and d i is the average value of d For a point P in the one or more regions of interest i and the distance between the transmitting device of the perception signal, for a point P in the one or more regions of interest i and the distance, d, between the receiving device of the perception signal ref for the distance between the transmitting device and the receiving device.

23. The method of claim 22, wherein, a size W of the one sampling window length1 satisfies one of the following equations: or and / or the offset W of the start position of the one sampling window relative to the reference sample point offset1 satisfies one of the following equations: or where c is the speed of light, and Δt is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, The at least one sampling window comprises one sampling window associated with the one or more regions of interest, and the at least one sampling window comprises one sampling window associated with the one or more regions of interest.

24. The method of claim 21, wherein, The down-rounding operation is denoted as floor(), and the rounding operation is denoted as round(). a size of the first sampling window is associated with d max2 and d min2 ; and / or, a start position of the first sampling window relative to a reference sample point is associated with d min2 and d ref , where d max2 is the maximum value of d j is the minimum value of d min2 j ​​ For a point P in the first region of interest j and the distance between the transmitting device of the perception signal, for a point P in the first region of interest j and a distance between the receiving device of the perception signal, the first region of interest being the region of interest of the one or more regions of interest associated with the first sampling window, d ref is a distance between the transmitting device and the receiving device.

25. The method of claim 24, wherein, a size W of the first sampling window length2 satisfies one of the following equations: or and / or an offset W of a start position of the first sampling window with respect to a reference sample point offset2 satisfies one of the following equations: or where c is the speed of light, and At is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, The at least one sampling window comprises a first sampling window, 26. The method of any one of claims 19 to 25, wherein, The down-rounding operation is denoted as floor(), and the rounding operation is denoted as round(). The first information for determining at least one sampling point comprises at least one of the following: The first information indicates at least one sampling window, and the at least one sampling point comprises all sampling points in the at least one sampling window; The first information indicates the at least one sampling window and a first bit map, and the first bit map indicates whether to feed back the perception measurement result corresponding to the sampling point in the at least one sampling window; The first information indicates the at least one sampling window, and the at least one sampling point comprises a sampling point in the at least one sampling window whose corresponding perception measurement result is greater than a first threshold value; or The first information indicates the at least one sampling window, and the at least one sampling point comprises a sampling point in the at least one sampling window whose corresponding perception measurement result is greater than a first threshold value; or The first information indicates the at least one sampling window and a second bitmap, the second bitmap indicating whether to feed back a perception measurement result corresponding to each group of sampling points in at least one group of sampling points, the at least one group of sampling points belonging to the at least one sampling window.

27. The method of claim 26, wherein, In a case where the second bitmap indicates to feed back a perception measurement result corresponding to a first group of sampling points in the at least one group of sampling points, the first information further indicates a third bitmap, the third bitmap indicating whether to feed back a perception measurement result corresponding to each sampling point in the first group of sampling points.

28. The method of claim 26 or 27, wherein, The first information indicates the at least one sampling window, comprising: The first information indicates at least one of the following: an offset of a reference position of each sampling window in the at least one sampling window relative to a reference sampling point, a size of each sampling window in the at least one sampling window, or a period of each sampling window in the at least one sampling window.

29. The method of claim 28, wherein, The first information further indicates a type of the reference sampling point, the type of the reference sampling point comprising at least one of the following: A sampling point corresponding to a direct view diameter, a sampling point with a strongest corresponding perception measurement result, or a sampling point agreed by a common clock.

30. The method of any one of claims 19 to 29, wherein, The first information further indicates a sampling frequency of a channel impulse response.

31. The method of any one of claims 19 to 30, wherein, The second information comprises: time information corresponding to a reference sampling point corresponding to the at least one sampling point, and at least one of the following: An index of each sampling point in the at least one sampling point; A fourth bitmap, the fourth bitmap indicating whether to feed back a perception measurement result corresponding to a sampling point in the at least one sampling window; or A fifth bitmap, the fifth bitmap indicating whether to feed back a perception measurement result corresponding to each group of sampling points in one or more groups of sampling points in the at least one sampling window.

32. The method of claim 31, wherein, In a case where the fifth bitmap indicates to feed back a perception measurement result corresponding to a second group of sampling points in the one or more groups of sampling points, the second information further comprises a sixth bitmap, the sixth bitmap indicating whether to feed back a perception measurement result corresponding to each sampling point in the second group of sampling points.

33. The method of any one of claims 19 to 32, wherein, The second information further indicates a sampling frequency of a channel impulse response.

34. The method of any one of claims 19 to 33, wherein, The perception measurement result comprises: channel impulse response information, and / or, information of a perception target.

35. The method of claim 34, wherein, The channel impulse response information comprises at least one of the following: In-phase component information and quadrature component information of a channel impulse response; or Amplitude information and phase information of a channel impulse response.

36. The method of any one of claims 19 to 35, wherein, The method is applied to a cellular network.

37. A communications device, characterized by The processing unit is configured to: receive, through an interface unit, first information used to determine at least one sampling point, the at least one sampling point being associated with one or more regions of interest; send, through the interface unit, second information indicating a perception measurement result corresponding to the at least one sampling point.

38. The apparatus of claim 37, wherein, The one or more regions of interest are regions where a to-be-measured object is located; and / or, the one or more regions of interest are regions to be measured.

39. The apparatus of claim 37 or 38, wherein, The at least one sampling point being associated with the one or more regions of interest comprises: The at least one sampling point belongs to at least one sampling window, the at least one sampling window is one sampling window associated with the one or more regions of interest, or each sampling window in the at least one sampling window is associated with one region of interest in the one or more regions of interest.

40. The apparatus of claim 39, wherein, The at least one sampling window is one sampling window associated with the one or more regions of interest, including: The size of the one sampling window is associated with d max1 and d min1 The starting position of the one sampling window relative to a reference sample point is associated with d min1 and d ref ​ where d max1 is the maximum value of d i is the minimum value of d min1 is the minimum value of d i , For a point P in the one or more regions of interest i and the distance between the transmitting device of the perception signal, for a point P in the one or more regions of interest i and the distance, d, between the receiving device of the perception signal ref for the distance between the transmitting device and the receiving device.

41. The apparatus of claim 40, wherein, a size W of the one sampling window length1 satisfies one of the following equations: or and / or the offset W of the start position of the one sampling window relative to the reference sample point offset1 satisfies one of the following equations: or where c is the speed of light, and At is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, represents a floor operation, and round() represents a rounding operation.

42. The apparatus of claim 39, wherein, The at least one sampling window includes a first sampling window, a size of the first sampling window is associated with d max2 and d min2 ; and / or, a starting position of the first sampling window relative to a reference sample point is associated with d min2 and d ref , where d max2 is the maximum value of d j , d min2 is the minimum value of d j , and d For a point P in the first region of interest j and the distance between the transmitting device of the perception signal, for a point P in the first region of interest j and a distance between the receiving device of the perception signal, the first region of interest being the region of interest of the one or more regions of interest associated with the first sampling window, d ref is a distance between the transmitting device and the receiving device.

43. The apparatus of claim 42, wherein, a size W of the first sampling window length2 satisfies one of the following equations: or and / or an offset W of a start position of the first sampling window with respect to a reference sample point offset2 satisfies one of the following equations: or where c is the speed of light, and Δt is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, represents a floor operation, and round() represents a rounding operation.

44. The apparatus of any one of claims 37 to 43, wherein, The first information is used to determine at least one sampling point, including at least one of the following: The first information indicates at least one sampling window, and the at least one sampling point includes all sampling points in the at least one sampling window; The first information indicates the at least one sampling window and a first bit map, and the first bit map indicates whether to feed back the corresponding perception measurement result of the sampling point in the at least one sampling window; The first information indicates the at least one sampling window, and the at least one sampling point includes: the sampling point in the at least one sampling window corresponding to the perception measurement result greater than a first threshold value; Or The first information indicates the at least one sampling window and a second bit map, and the second bit map indicates whether to feed back the corresponding perception measurement result of each group of sampling points in at least one group of sampling points, the at least one group of sampling points belonging to the at least one sampling window.

45. The apparatus of claim 44, wherein, In a case where the second bit map indicates to feed back the corresponding perception measurement result of a first group of sampling points in the at least one group of sampling points, the first information further indicates a third bit map, and the third bit map indicates whether to feed back the corresponding perception measurement result of each sampling point in the first group of sampling points.

46. The apparatus of claim 44 or 45, wherein, The first information indicates the at least one sampling window, including: The first information indicates at least one of the following: an offset of a reference position of each sampling window in the at least one sampling window relative to a reference sampling point, a size of each sampling window in the at least one sampling window, or a period of each sampling window in the at least one sampling window.

47. The apparatus of claim 46, wherein, The first information further indicates a type of the reference sampling point, and the type of the reference sampling point includes at least one of the following: A sampling point corresponding to a direct view diameter, a sampling point with the strongest corresponding perception measurement result, or a sampling point agreed by a common clock.

48. The apparatus of any one of claims 37 to 47, wherein, The first information further indicates a sampling frequency of a channel impulse response.

49. The apparatus of any one of claims 37 to 48, wherein, The second information includes: time information corresponding to a reference sampling point corresponding to the at least one sampling point, and at least one of the following: An index of each sampling point in the at least one sampling point; A fourth bit map, the fourth bit map indicating whether to feed back the corresponding perception measurement result of the sampling point in the at least one sampling window; or A fifth bit map, the fifth bit map indicating whether to feed back the corresponding perception measurement result of each group of sampling points in one or more groups of sampling points in the at least one sampling window.

50. The apparatus of claim 49, wherein, In a case where the fifth bitmap indicates that the feedback is for the perceptual measurement result corresponding to a second group of sampling points in the one or more groups of sampling points, the second information further comprises a sixth bitmap, and the sixth bitmap indicates whether the feedback is for the perceptual measurement result corresponding to each sampling point in the second group of sampling points.

51. The apparatus of any one of claims 37 to 50, wherein, The second information further indicates a sampling frequency of the channel impulse response.

52. The apparatus of any one of claims 37 to 51, wherein, The perceptual measurement result comprises: channel impulse response information, and / or information of a perceptual target.

53. The apparatus of claim 52, wherein, The channel impulse response information comprises at least one of: in-phase component information and quadrature component information of the channel impulse response; or amplitude information and phase information of the channel impulse response.

54. The apparatus of any one of claims 37 to 53, wherein, The apparatus is applied to a cellular network.

55. A communications device, characterized by The processing unit is configured to: send, via the interface unit, first information used to determine at least one sampling point associated with one or more regions of interest; and receive, via the interface unit, second information indicating a perceptual measurement result corresponding to the at least one sampling point.

56. The apparatus of claim 55, wherein, The one or more regions of interest are regions where a to-be-measured object is located; and / or the one or more regions of interest are regions to be measured.

57. The apparatus of claim 55 or 56, wherein, The at least one sampling point being associated with the one or more regions of interest comprises: the at least one sampling point belongs to at least one sampling window, and each sampling window in the at least one sampling window is associated with one region of interest in the one or more regions of interest.

58. The apparatus of claim 57 wherein, The at least one sampling window being one sampling window associated with the one or more regions of interest comprises: The size of the one sampling window is associated with d max1 and d min1 The starting position of the one sampling window relative to a reference sample point is associated with d min1 and d ref ​ where d max1 is the maximum value of d i is the minimum value of d min1 is the minimum value of d i ​ For a point P in the one or more regions of interest i and the distance between the transmitting device of the perception signal, for a point P in the one or more regions of interest i and the distance, d, between the receiving device of the perception signal ref for the distance between the transmitting device and the receiving device.

59. The apparatus of claim 58 wherein, a size W of the one sampling window length1 satisfies one of the following equations: or and / or the offset W of the start position of the one sampling window relative to the reference sample point offset1 satisfies one of the following equations: or where c is the speed of light, and At is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, round() represents a rounding operation.

60. The apparatus of claim 57, wherein, The at least one sampling window comprises a first sampling window, a size of the first sampling window is associated with d max2 and d min2 ; and / or, a start position of the first sampling window is offset relative to a reference sample point, associated with d min2 and d ref , where d max2 is the maximum value of d j is the minimum value of d min2 is the minimum value of d j , For a point P in the first region of interest j and the distance between the transmitting device of the perception signal, for a point P in the first region of interest j and a distance between the receiving device of the perception signal, the first region of interest being the region of interest of the one or more regions of interest associated with the first sampling window, d ref is a distance between the transmitting device and the receiving device.

61. The apparatus of claim 60, wherein, a size W of the first sampling window length2 satisfies one of the following equations: or and / or an offset W of a start position of the first sampling window with respect to a reference sample point offset2 satisfies one of the following equations: or where c is the speed of light, and At is the time interval between adjacent sample points of the channel impulse response, denotes a rounding up operation, round() represents a rounding operation.

62. The apparatus of any one of claims 55 to 61, wherein, The first information used to determine the at least one sampling point comprises at least one of: the first information indicates the at least one sampling window, and the at least one sampling point comprises all sampling points in the at least one sampling window; the first information indicates the at least one sampling window and a first bitmap, and the first bitmap indicates whether the feedback is for the perceptual measurement result corresponding to a sampling point in the at least one sampling window; the first information indicates the at least one sampling window, and the at least one sampling point comprises a sampling point in the at least one sampling window for which the corresponding perceptual measurement result is greater than a first threshold value; or the first information indicates the at least one sampling window and a second bitmap, and the second bitmap indicates whether the feedback is for the perceptual measurement result corresponding to each group of sampling points in at least one group of sampling points, and the at least one group of sampling points belongs to the at least one sampling window. In a case where the second bitmap indicates that the feedback is for the perceptual measurement result corresponding to a first group of sampling points in the at least one group of sampling points, the first information further indicates a third bitmap, and the third bitmap indicates whether the feedback is for the perceptual measurement result corresponding to each sampling point in the first group of sampling points.

63. The apparatus of claim 62 wherein, ​ 64. The apparatus of claim 62 or 63, wherein, The first information indicates the at least one sampling window, including: The first information indicates at least one of the following: an offset of a reference position of each sampling window in the at least one sampling window relative to a reference sampling point, a size of each sampling window in the at least one sampling window, or a period of each sampling window in the at least one sampling window.

65. The apparatus of claim 64, wherein, The first information further indicates a type of the reference sampling point, the type of the reference sampling point including at least one of: a sampling point corresponding to a direct view diameter, a sampling point corresponding to a strongest perceived measurement result, or a sampling point agreed by a common clock.

66. The apparatus of any one of claims 55 to 65, wherein, The first information further indicates a sampling frequency of a channel impulse response.

67. The apparatus of any one of claims 55 to 66, wherein, The second information includes: time information corresponding to a reference sampling point corresponding to the at least one sampling point, and at least one of: an index of each sampling point in the at least one sampling point; a fourth bit map indicating whether to feed back a perceived measurement result corresponding to a sampling point in the at least one sampling window; or a fifth bit map indicating whether to feed back a perceived measurement result corresponding to each group of sampling points in one or more groups of sampling points in the at least one sampling window.

68. The apparatus of claim 67 wherein, In a case where the fifth bit map indicates to feed back a perceived measurement result corresponding to a second group of sampling points in the one or more groups of sampling points, the second information further includes a sixth bit map indicating whether to feed back a perceived measurement result corresponding to each sampling point in the second group of sampling points.

69. The apparatus of any one of claims 55 to 68, wherein, The second information further indicates a sampling frequency of a channel impulse response.

70. The apparatus of any one of claims 55 to 69, wherein, The perceived measurement result includes: channel impulse response information, and / or, information of a perceived target.

71. The apparatus of claim 70, wherein, The channel impulse response information includes at least one of: in-phase component information and quadrature component information of a channel impulse response; or amplitude information and phase information of a channel impulse response.

72. The apparatus of any one of claims 55 to 71, wherein, The apparatus is applied to a cellular network.

73. A communications device, characterized by The apparatus includes a processor configured to execute a computer program or instructions, so that the apparatus performs the method of any one of claims 1-36.

74. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program or instructions, when the computer program or instructions are executed, the method of any one of claims 1-36 is implemented.

75. A computer program product, characterised in that, The computer program product includes: computer program code, when the computer program code is run, the method of any one of claims 1-36 is implemented.

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