Communication method and device

Abstract

A communication method and apparatus, the method comprising: a first apparatus 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 sends second information, wherein the second information indicates the sensing measurement result corresponding to the at least one sampling point. Through the method, the perception measurement result fed back by the first device can be associated with the region of interest, so that the perception measurement result can be used for positioning the perception target in the region of interest.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] Wireless sensing technology can obtain the characteristics of the signal propagation space by analyzing the changes in wireless signals during propagation, thereby enabling scene perception. Taking radar as an example, its basic principle is: the transmitter emits a specific waveform signal, which is transmitted to the receiver through a wireless channel. By combining the transmitted and received signals, the target of interest in the wireless channel can be extracted, thus achieving wireless sensing.

[0003] Wireless communication can be used to send and receive information between two ends. Its basic principle includes: the transmitter transmits a specific waveform signal, which is received by the receiver after passing through the wireless channel. The receiver processes the signal and demodulates the signal transmitted by the transmitter.

[0004] From the perspective of transmitting, receiving, and transmitting signals, wireless communication and wireless sensing are remarkably similar. Therefore, combining wireless communication and wireless sensing allows for simultaneous communication between the transmitting and receiving ends while simultaneously sensing the surrounding environment. Specifically, sensing signals can be transmitted in the frequency domain, which can be used to carry information exchanged between the transmitting and receiving ends, as well as to sense objects in the surrounding environment.

[0005] Further research is needed on how to feed back sensing measurement results in cellular networks. Summary of the Invention

[0006] This application provides a communication method and apparatus for feeding back sensing measurement results.

[0007] In a first aspect, embodiments of this application provide a communication method that can be applied to a first device. The first device may be a terminal or access network device, or a device within the terminal or access network device (e.g., a module, communication module, circuit or chip responsible for communication and / or sensing functions (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip), a chip system, or a processor), or a logical node, logical module, or software capable of implementing all or part of the functions of the terminal or access network device. For ease of description, the following description uses a first device as an example. The method may 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. The first device sending second information, the second information indicating the sensing measurement result corresponding to the at least one sampling point.

[0008] Using this method, the first device can determine at least one sampling point associated with one or more regions of interest based on 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 to locate the sensing target in the region of interest.

[0009] Secondly, embodiments of this application provide a communication method that can be applied to a second device. The second device can be a sensing management function or a device including a sensing management function. A device including a sensing management function can be a terminal or access network device, or a module, communication module, circuit or chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor within the terminal or access network device. It can also be a logic node, logic module, or software capable of implementing all or part of the functions of the terminal or access network device, or a device independent of the terminal or access network device. For ease of description, the following explanation uses a 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. The second device receiving second information, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

[0010] Using this method, the second device can send first information that can be used to determine at least one sampling point associated with one or more regions of interest, thereby receiving the sensing measurement results corresponding to the at least one sampling point. In this way, the sensing measurement results received by the second device can be associated with the region of interest, and thus used to locate sensing targets within the region of interest.

[0011] Based on the first or second aspect, in one possible design, the one or more regions of interest are the regions where the object to be measured is located; and / or, the one or more regions of interest are the regions to be measured. With this design, the second device can accurately determine the one or more regions of interest.

[0012] Based on the first or second aspect, in one possible design, at least one sampling point is associated with one or more regions of interest (ROIs), which may include: at least one sampling point belonging to at least one sampling window, and at least one sampling window being a sampling window associated with one or more ROIs (hereinafter referred to as a second sampling window). With this design, the first device can accurately determine at least one sampling point based on the second sampling window, thereby acquiring and feeding back sensing measurement results related to the one or more ROIs based on the at least one sampling point. Furthermore, in this design, the second sampling window is associated with one or more ROIs; correspondingly, the second device can determine a sampling window for one or more ROIs. Thus, for the one or more ROIs, the second device can indicate only one sampling window to the first device, without needing to indicate the sampling window corresponding to each ROI separately, thereby reducing signaling overhead.

[0013] Based on the first or second aspect, in one possible design, at least one sampling window is a sampling window associated with one or more regions of interest, and may include: the size of the sampling window is related to d. max1 and d min1 Associated; and / or, the offset of the starting position of a sampling window relative to the reference sampling point, with d min1 and d ref Association. Where, d max1 It is d i The maximum value, d min1 It is d i The minimum value, For point P in one or more regions of interest i The distance between the sensing signal transmitting device and the device. For a point P in a region of interest i The distance d between the receiving device and the sensing signal ref This refers to the distance between the transmitting and receiving devices. Through this design, the second device can be configured according to d... max1 and d min1 To accurately determine the size of a sampling window; and / or, based on d min1 and d ref This allows for the accurate determination of the offset of the starting position of a sampling window relative to the reference sampling point, thus enabling the accurate determination of the sampling window.

[0014] Based on the first or second aspect, in one possible design, the size W of the sampling window is... length1 Satisfy one of the following formulas:

[0015]

[0016] or

[0017]

[0018] And / or, the offset W of the starting position of a sampling window relative to the reference sampling point. offset1 Satisfy one of the following formulas:

[0019]

[0020] or

[0021]

[0022] Where c is the speed of light, and Δt is the time interval between adjacent sampling points of the channel impulse response. This indicates the rounding up operation. The first option indicates rounding down, while the second option indicates rounding to the nearest integer.

[0023] Through this design, the second device can accurately determine W. length1 and / or W offset1 .

[0024] Based on the first or second aspect, in one possible design, at least one sampling point is associated with one or more regions of interest (ROIs). This may include: at least one sampling point belonging to at least one sampling window, where each sampling window is associated with one of the one or more ROIs. In this design, at least one sampling point belongs to at least one sampling window associated with the one or more ROIs. Thus, the first device can accurately determine at least one sampling point based on the at least one sampling window, and thereby acquire and feed back sensing measurement results related to the one or more ROIs based on the at least one sampling point. Alternatively, in this design, each ROI can be associated with one sampling window, so that all sampling points within the sampling window are associated with the ROI. The first device can report only the sensing measurement results corresponding to sampling points associated with ROIs, and may not report the sensing measurement results corresponding to sampling points unrelated to ROIs, thereby saving the transmission overhead of sensing measurement results.

[0025] Based on the first or second aspect, in one possible design, at least one sampling window includes a first sampling window. The size of the first sampling window is related to 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, with d min2 and d ref Association. Where, d max2 It is dj 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 sensing signal transmitting device and the device. Point P in the first region of interest j The distance between the receiving device and the sensing signal, the first region of interest is one or more regions of interest associated with the first sampling window, d ref This refers to the distance between the transmitting and receiving devices. Through this design, the second device can be configured according to d... max2 and d min2 Accurately determine the size of the first sampling window; and / or, based on d min2 and d ref The offset of the starting position of the first sampling window relative to the reference sampling point can be accurately determined, thus accurately determining the first sampling window.

[0026] Based on the first or second aspect, in one possible design, the size W of the first sampling window length2 Satisfy one of the following formulas:

[0027]

[0028] or

[0029]

[0030] And / or, the offset W of the starting position of the first sampling window relative to the reference sampling point. offset2 Satisfy one of the following formulas:

[0031]

[0032] or

[0033]

[0034] Where c is the speed of light, and Δt is the time interval between adjacent sampling points of the channel impulse response. This indicates the rounding up operation. The first option indicates rounding down, while the second option indicates rounding to the nearest integer.

[0035] Through this design, the second device can accurately determine W. length2 and / or W offset2

[0036] Based on the first or second aspect, in one possible design, the first information is used to determine at least one sampling point and may include at least one of the following:

[0037] 1. The first information indicates at least one sampling window, and the at least one sampling point includes all sampling points within the at least one sampling window. Thus, the first device can accurately determine at least one sampling window based on the first information, and thereby accurately determine at least one sampling point based on the at least one sampling window.

[0038] 2. The first information indicates at least one sampling window and a first bitmap, wherein the first bitmap indicates whether to feed back the sensing measurement results corresponding to the sampling points in at least one sampling window. Thus, the first device can accurately determine at least one sampling window and the first bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the first bitmap. Furthermore, the first bitmap can indicate whether to feed back the sensing measurement results corresponding to the sampling points in at least one sampling window; therefore, the first device can avoid feeding back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of the sensing measurement results. Moreover, when at least one sampling window is a sampling window associated with one or more regions of interest, the first bitmap can indicate whether to feed back the sensing measurement results corresponding to the sampling points in that sampling window that are associated with one or more regions of interest, and not feed back the sensing measurement results corresponding to the sampling points in that sampling window that are not associated with one or more regions of interest, thereby ensuring that the fed-back sensing measurement results are related to all one or more regions of interest.

[0039] 3. The first information indicates at least one sampling window, and the at least one sampling point includes: at least one sampling point in the sampling window whose corresponding sensing measurement result is greater than a first threshold. Thus, the first device can accurately determine at least one sampling window based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the first threshold. Furthermore, since the at least one sampling point includes: at least one sampling point in the sampling window whose corresponding sensing measurement result is greater than the first threshold, the first device does not need to feed back the sensing measurement results corresponding to all sampling points in the at least one sampling window, thereby reducing the feedback overhead of the sensing measurement results.

[0040] 4. The first information indicates at least one sampling window and a second bitmap. The second bitmap indicates whether to feed back the sensing measurement results corresponding to each group of sampling points in at least one set of sampling points, where at least one set of sampling points belongs to at least one sampling window. Thus, the first device can accurately determine at least one sampling window and the second bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the second bitmap. Furthermore, since the second bitmap indicates whether to feed back the sensing measurement results corresponding to each group of sampling points in at least one set of sampling points, the first device may not feed back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of sensing measurement results. In addition, this design can indicate whether to feed back the sensing measurement results corresponding to each group of sampling points in groups. Thus, when the sampling points for which sensing measurement results need to be fed back are relatively sparse, this design does not need to explicitly indicate whether to feed back the sensing measurement results corresponding to each sampling point, thereby reducing signaling overhead.

[0041] Based on the first or second aspect, in one possible design, when the second bitmap indicates the feedback of the sensing measurement result corresponding to the first set of sampling points in at least one set of sampling points, the first information further indicates the third bitmap, which indicates whether to feedback the sensing measurement result corresponding to each sampling point in the first set of sampling points. With this design, the first device can accurately determine at least one sampling window, the second bitmap, and the third bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window, the second bitmap, and the third bitmap. Furthermore, in this design, the second bitmap indicates whether to feedback the sensing measurement result corresponding to each set of sampling points in at least one set of sampling points; when the second bitmap indicates feedback of the sensing measurement result corresponding to the first set of sampling points in at least one set of sampling points, the third bitmap indicates whether to feedback the sensing measurement result corresponding to each sampling point in the first set of sampling points. Thus, the first device can avoid feeding back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of the sensing measurement results.

[0042] Based on the first or second aspect, in one possible design, the first information indicates at least one sampling window, including: the first information indicating at least one of the following: the offset of the reference position of each sampling window in the at least one sampling window relative to a reference sampling point, the size of each sampling window in the at least one sampling window, or the period of each sampling window in the at least one sampling window. With this design, the first device can accurately determine the at least one sampling window based on the first information.

[0043] Based on the first or second aspect, in one possible design, the first information further indicates the type of reference sampling point, which includes at least one of the following: a sampling point corresponding to the line of sight, a sampling point with the strongest corresponding sensing measurement result, or a sampling point agreed upon by a common clock. With this design, the first device can accurately determine the type of reference sampling point based on the first information, thereby accurately determining the reference sampling point and, based on the reference sampling point, determining the at least one sampling window.

[0044] Based on the first or second aspect, in one possible design, the first information further indicates the sampling frequency of the channel impulse response. With this design, the first device can accurately determine the time interval between adjacent sampling points of the channel impulse response based on the sampling frequency of the channel impulse response indicated by the first information, thereby accurately determining the time information corresponding to at least one sampling point based on the first information.

[0045] Based on the first or second aspect, in one possible design, the second information includes: time information corresponding to a reference sampling point corresponding to 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 indicating whether to feed back the sensing measurement result corresponding to the sampling point in at least one sampling window; or, a fifth bitmap indicating whether to feed back the sensing 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 based on the second information, thereby accurately determining the time information corresponding to the at least one sampling point.

[0046] Based on the first or second aspect, in one possible design, where the fifth bitmap indicates the sensing measurement result corresponding to the second set of sampling points in one or more sets of sampling points, the second information also includes a sixth bitmap, which indicates whether to feed back the sensing measurement result corresponding to each sampling point in the second set of sampling points. With this design, the second device can accurately determine the at least one sampling point, thereby accurately determining the time information corresponding to the at least one sampling point.

[0047] Based on the first or second aspect, in one possible design, the second information also indicates the sampling frequency of the channel impulse response. With this design, 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, thereby accurately determining the time information corresponding to at least one sampling point based on the second information.

[0048] Based on the first or second aspect, in one possible design, the sensing measurement results include: channel impulse response information, and / or, information about the sensing target. Optionally, the sensing target may be located within one or more regions of interest.

[0049] Optionally, the channel impulse response information includes 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.

[0050] Through this design, the second device can acquire channel impulse response information and / or sensing target information corresponding to at least one sampling point. Since at least one sampling point is associated with one or more regions of interest, the channel impulse response information and / or sensing target information corresponding to at least one sampling point can be used to sense the sensing target in the one or more regions of interest, for example, to locate the sensing target in the one or more regions of interest.

[0051] Based on the first or second aspect, in one possible design, this method can be applied to cellular networks.

[0052] Thirdly, this application provides a communication device. This communication device can be a terminal or access network equipment, or a module, communication module, circuit or chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor within the terminal or access network equipment. It can also be a logical node, logical module, or software capable of implementing all or part of the functions of the terminal or access network equipment, or a sensing management function or a device containing a sensing management function. It should be understood that the sensing management function may also have other names, such as sensing management network element, sensing management device, or sensing management entity. Any function that manages sensing is within the scope of protection of this application. This communication device possesses the functions to implement the first or second aspects described above.

[0053] In one possible embodiment, the communication device includes modules, units, or means that perform the operations described in the first or second aspect above. These modules, units, or means can be implemented in software, hardware, or a combination of both. For example, the communication device includes an interface unit and a processing unit. The interface unit can be used to send and receive signals to enable communication between the communication device and other devices; the processing unit can be used to perform some internal operations of the communication device. The functions performed by the processing unit and the interface unit can correspond to the operations described in the first or second aspect above.

[0054] In one possible embodiment, the communication device includes a processor. The processor is capable of executing computer programs or instructions that, when executed, cause the communication device to implement the methods in any possible design of the first or second aspect described above.

[0055] In one possible embodiment, the communication device includes a processor and a memory, the memory of which may store necessary computer programs or instructions for implementing the functions described in the first or second aspect above. The processor may execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication device to implement the methods in any possible design of the first or second aspect above.

[0056] In one possible embodiment, the communication device includes a processor and an interface circuit, wherein the processor is configured to communicate with other devices via the interface circuit and to perform the methods in any possible design of the first or second aspect described above.

[0057] Fourthly, this application provides a communication system that may include a first device and a second device. The first device is capable of executing the communication method provided in the first aspect, and the second device is capable of executing the communication method provided in the second aspect.

[0058] In some possible designs, the first device is a terminal and the second device is an access network device.

[0059] In other possible designs, the first device is an access network device, and the second device is a sensing management function.

[0060] In some other possible designs, the first device is a terminal, and the second device is a sensing and management function.

[0061] Fifthly, this application provides a computer-readable storage medium storing a computer program or instructions, wherein when the computer program or instructions are executed, the method in any of the possible designs of the first or second aspect described above is implemented.

[0062] Sixthly, this application provides a computer program product including computer program code, wherein when the computer program code is run, the method in any of the possible designs of the first or second aspect described above is implemented.

[0063] In a seventh aspect, this application provides a chip for reading a computer program stored in a memory to execute a method in any possible design of either the first or second aspect described above.

[0064] The technical effects that can be achieved by any of the third to seventh aspects mentioned above can be described with reference to the technical effects that can be achieved by any possible design in the first or second aspect mentioned above. Where there is overlap, no further discussion will be given. Attached Figure Description

[0065] Figure 1A and Figure 1B Network architecture diagrams of several communication systems provided in the embodiments of this application;

[0066] Figure 2 A schematic diagram of an integrated communication and sensing scenario provided in an embodiment of this application;

[0067] Figure 3 Schematic diagrams of several sensing scenarios provided in the embodiments of this application;

[0068] Figures 4A to 4C A schematic diagram illustrating several positioning methods provided in the embodiments of this application;

[0069] Figure 5 A flowchart illustrating a communication method provided in an embodiment of this application;

[0070] Figure 6 A schematic diagram illustrating an application scenario provided in an embodiment of this application;

[0071] Figures 7A to 7J A schematic diagram of several sampling windows provided in the embodiments of this application;

[0072] Figure 8A A flowchart illustrating another communication method provided in an embodiment of this application;

[0073] Figure 8B A schematic diagram illustrating several methods for determining the location of a perceived target provided in embodiments of this application;

[0074] Figures 9 to 10 Flowcharts of several other communication methods provided in the embodiments of this application;

[0075] Figures 11 to 12 Structural diagrams of several communication devices provided in the embodiments of this application. Detailed Implementation

[0076] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The technical solutions in the embodiments of this application can be applied to various communication systems, such as wireless local area networks (WLANs), wireless fidelity (Wi-Fi or WiFi) systems, fourth-generation (4G) mobile communication systems (such as long-term evolution (LTE) systems), fifth-generation (5G) mobile communication systems (such as new radio (NR) systems), or future communication systems. The methods provided in the embodiments of this application can be applied to terrestrial network communication systems or non-terrestrial network (NTN) communication systems. NTN communication systems can be, for example, satellite communication systems, and may also include unmanned aerial vehicles (UAVs), high-altitude platform stations (HAPS), and other aerial access network equipment; this application does not limit these aspects.

[0077] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0078] Figure 1A A schematic diagram of a communication system provided in an embodiment of this application is shown as an example. Figure 1A As shown, the communication system includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system may also include an Internet 300.

[0079] RAN 100 includes at least one RAN node (such as...) Figure 1A 110a and 110b (collectively referred to as 110) and at least one terminal (such as Figure 1A RAN 100, denoted as RAN 120a-120j, is collectively referred to as RAN 120. RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1A(Not shown in the image). Terminal 120 is connected to RAN node 110 wirelessly. RAN node 110 is connected to core network 200 wirelessly or via wired connection. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0080] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 100 can also be an open RAN (ORAN or O-RAN), a cloud radio access network (CRAN), or a WiFi system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0081] RAN node 110, sometimes referred to as RAN entity or access node, constitutes part of the communication system and assists terminals in achieving wireless access. Multiple RAN nodes 110 in the communication system can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example... Figure 1A Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access RAN 100 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices, for example... Figure 1A Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal functions.

[0082] RAN nodes can also be described in different ways, such as access network equipment. Unless otherwise specified in this application, access network equipment will be used as the term.

[0083] Access network equipment can be devices or modules located on the network side of the aforementioned communication system and possessing corresponding communication functions. Access network equipment typically contains communication modules, circuits, or chips that perform the corresponding communication functions. Access network equipment may also be configured with programs or instructions for performing the corresponding communication functions, as well as the corresponding programs or instructions themselves.

[0084] In one possible scenario, access network equipment 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 base station in a future communication system, or an access node in a WiFi system, etc. Access network equipment can also be a macro base station (such as...). Figure 1A 110a), micro base stations or indoor stations (such as Figure 1A The access network equipment can be categorized as follows: 110b), relay nodes or donor nodes, wireless controllers in CRAN scenarios, satellites, drones, balloons, or aircraft, etc. Optionally, the access network equipment can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the access network equipment in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform).

[0085] In another possible scenario, multiple access network devices collaborate to assist the terminal in achieving wireless access, with each device performing a portion of the base station's functions. For example, the access network devices can be a central unit (CU or control unit), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and DU can be separate entities or included in the same network element, such as a baseband unit (BBU). The RU can be included in radio frequency equipment or radio frequency units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0086] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0087] For ease of description, the concepts of "access network equipment" and "site" will be used together in this application. Access network equipment can be understood as a collective term for all equipment (including sites) on the access network side; for example, one or more sites can be collectively referred to as access network equipment. A site can refer to a transmission node specifically located in a physical location. In other words, access network equipment conceptually includes sites.

[0088] A terminal is a device or module that connects to the aforementioned communication system and possesses corresponding communication functions. A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, wireless terminal device, subscriber unit, subscriber station, mobile station, remote station, user terminal, user agent, or user device, etc. A terminal typically contains communication modules, circuits, or chips that perform the corresponding communication functions. The terminal can also be configured with programs or instructions for performing these communication functions.

[0089] Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables. Terminals used in vehicles are called in-vehicle terminal devices, which include, for example, transportation vehicles with wireless communication capabilities, communication modules, or on-board units (OBUs).

[0090] For example, a terminal may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, or a portable, pocket-sized, handheld, or computer-embedded mobile device. For instance, a terminal may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or other similar devices. A terminal may also include restricted devices, such as devices with limited power consumption, limited storage capacity, or limited computing power. For example, a terminal may be an information sensing device such as a barcode scanner, radio frequency identification (RFID), a sensor, a global positioning system (GPS), or a laser scanner. The embodiments of this application do not limit the device form of the terminal.

[0091] In this application, core network equipment refers to equipment in the core network that provides service support to terminals. For example, in the case where CN200 is the core network of a future communication system, a 5G core network, or an evolved 5G core network, some examples of core network equipment include: access and mobility management function (AMF) entities, session management function (SMF) entities, user plane function (UPF) entities, policy control function (PCF) entities, location management function (LMF) entities, etc., which are not listed here. Among them, the AMF entity can be responsible for the access management and mobility management of the terminal; the SMF entity can be responsible for session management, such as the establishment of user sessions; the UPF entity can be a user plane functional entity, mainly responsible for connecting to external networks; and the LMF entity can be responsible for the location management of the terminal. For example, in the case of CN200 as the 4G core network, some core network devices include: Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), Public Data Network Gateway (PDN Gateway, P-GW), etc., which will not be listed here. It should be noted that in this application, entities can also be referred to as network elements or functional entities. For example, an AMF entity can also be called an AMF network element or AMF functional entity; similarly, an SMF entity can also be called an SMF network element or SMF functional entity; and similarly, an LMF entity can also be called an LMF network element or LMF functional entity. The above-mentioned core network devices can operate independently or be combined to implement certain control functions. For example, AMF, SMF, and PCF can be combined into a single core network device.

[0092] Figure 1B A schematic diagram of another communication system provided in an embodiment of this application is illustrated. Figure 1B As shown, the communication system includes: terminals, access network equipment, and core network equipment.

[0093] For details regarding terminals, access network equipment, and core network equipment, please refer to the sections above. Figure 1A The descriptions of the terminals, access network equipment, and core network equipment in the illustrated communication system are repeated here; therefore, they will not be repeated. The following describes some of the entities included in this communication system.

[0094] The Network Exposure Function (NEF) entity, also known as a NEF network element or NEF functional entity, can reside between the core network and third-party application (or external application) functional entities. Third-party applications need to access data within the core network through the NEF entity. The NEF entity can securely expose interfaces to third-party applications, thereby ensuring the security of third-party applications accessing the 3GPP network. The NEF entity can also be responsible for functions such as enabling third-party application Quality of Service (QoS) customization, mobility state event subscription, and application function (AF) request distribution.

[0095] A unified data repository (UDR) entity, also known as a UDR network element or UDR functional entity, can be used to store terminal data, such as subscription data.

[0096] A unified data management (UDM) entity, also known as a UDM network element or UDM functional entity, is used to manage and store terminal data, such as subscription data.

[0097] AF can refer to various application layer services. AF can be an internal operator application, such as a Voice over LTE (VoLTE) AF (e.g., a 4G VoLTE application server (AS)); or AF can be a third-party AF, such as a video server or a game server.

[0098] The Network Data Analytics Function (NWDAF) entity, also known as the NWDAF network element or NWDAF functional entity, is responsible for analyzing network data and using the analysis results for network function optimization and decision-making.

[0099] The AMF entity is responsible for managing registration, connection, reachability, and mobility; providing a transmission channel for session management messages between terminals and SMF entities; providing authentication and authorization functions for user access; and serving as an access point for terminals and the core network control plane.

[0100] A sensing reference unit (SRU), located at a known location, performs sensing measurements (e.g., measuring one or more of the reference signal time difference (RSTD), reference signal receiving power (RSRP), or UE Rx-Tx Time Difference) and reports the measurement results to a sensing server. Additionally, the SRU can transmit a sensing reference signal, enabling access network devices to measure the sensing reference signal transmitted from the SRU located at a fixed location and report uplink sensing measurement results (one or more of the relative time of arrival (RTOA), uplink angle of arrival (UL-AOA), or gNB Rx-Tx Time Difference). The sensing server compares the SRU's measurement results with the expected measurement results at the SRU's location to derive correction terms for other objects near the SRU. The downlink and / or uplink sensing measurement results for these other objects can be corrected according to these correction terms. From the perspective of the perception server, SRU can be regarded as a terminal with a known location.

[0101] Sensing management functions are used to manage sensing. These functions can be located in terminals or access network devices, or they can be network elements independent of terminals or access network devices. Sensing management functions may also have other names, such as sensing management network element, sensing management device, sensing management entity, sensing function (SF), integrated sensing and communication (ISAC) management function (ISACMF), ISAC service management function (ISACSMF), or sensing service management function (SSMF), etc., without limitation.

[0102] The gateway sensing center (GSC) can receive sensing requests from sensing service clients and send information about the sensing target (or the sensing information of the target) to the sensing service clients.

[0103] The sensing service client can be a logical functional entity. It can be an entity within a public land mobile network (PLMN), such as an operation and management (O&M) tool; or it can be an entity outside the PLMN, such as a third-party location server deployed by a non-operator. The sensing service client initiates a sensing request carrying parameters such as QoS to obtain the location information of one or more sensing targets.

[0104] The communication systems and service scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0105] The relevant terms used in the embodiments of this application will be explained below. It should be noted that these explanations are for the purpose of making the embodiments of this application easier to understand, and should not be regarded as a limitation on the scope of protection claimed by this application.

[0106] I. ISAC:

[0107] Integrated communication and sensing technology is considered one of the key technologies for expanding the service capabilities of mobile communication networks. The core idea of ​​this technology is to add sensing capabilities to the mobile communication network, building capabilities such as target detection, tracking, and imaging, thereby integrating communication and sensing capabilities into a single network, achieving harmonious coexistence and mutual benefit. Please see [link to relevant documentation]. Figure 2 This is a schematic diagram of an integrated communication and sensing scenario. Figure 2 In the example, solid lines represent communication, and dashed lines represent sensing. Figure 2 As shown, access network devices can sense other objects by transmitting and receiving data on their own, or they can sense other objects while communicating with terminals. Figure 2 The example uses a smartphone as the terminal and drones, pedestrians, and vehicles as the sensing targets.

[0108] Sensing technologies can generally be categorized into two modes: mono-static sensing and bi-static sensing. Mono-static sensing refers to a mode where the transmitting device for the sensing signal and the receiving device for its echo signal are the same device. In other words, in mono-static sensing, the transmitting device both sends the sensing signal and receives the echo signal obtained after the sensing signal has passed through a sensing target (e.g., reflection, diffraction, or scattering). Therefore, mono-static sensing can also be called a self-transmitting and self-receiving mode, without limitation. Bi-static sensing, on the other hand, refers to a mode where the transmitting device for the sensing signal and the receiving device for its echo signal are two different devices. In other words, sensing station A sends a sensing signal, and the echo signal obtained after the sensing signal passes through a sensing target is received by sensing station B.

[0109] Figure 3 The diagram illustrates a sensing scenario to which the embodiments of this application are applicable. Figure 3 The document provides eight sensing scenarios applicable to the embodiments of this application, namely: the scenario where access network device A transmits and receives signals independently, i.e., the scenario where access network device A sends sensing signals and receives echo signals, such as... Figure 3 As shown in (1); the scenario where terminal A transmits and receives signals independently, that is, the scenario where terminal A sends sensing signals and receives echo signals, as shown in (1); Figure 3 As shown in (2) in the diagram; the scenario where access network device A sends a sensing signal and access network device B receives the echo signal, as follows: Figure 3 As shown in (3) in the diagram; the scenario where terminal A sends a sensing signal and terminal B receives the echo signal, as shown in the diagram. Figure 3 As shown in (4) in the diagram; the scenario where access network device A sends a sensing signal and terminal A receives the echo signal, as shown in the diagram. Figure 3 As shown in (5) in the example; the scenario where terminal A sends a sensing signal and access network device A receives the echo signal, as shown in the example. Figure 3 As shown in (6) in the diagram; under the control of access network device C, access network device A sends sensing signals and access network device B receives echo signals, as in the following scenario. Figure 3 As shown in (7) in the diagram; under the control of access network device A, the scenario in which terminal A sends a sensing signal and terminal B receives an echo signal is as follows: Figure 3 As shown in (8) of the table. Figure 3 The example shown uses a vehicle as the sensing target and a smartphone as the terminal.

[0110] Optional, Figure 3The scenario shown may include one or more regions of interest (ROIs). The figure illustrates one ROI as an example, but this is not a limitation. The perceived target may be located within the ROI. In this application, the term ROI can have various possible English translations, such as region of interest (ROI), area of ​​interest (AOI), or field of interest (FOI).

[0111] Optionally, in the sensing scenario to which this application embodiment applies, there may be one or more transmitting devices for transmitting sensing signals, and one or more receiving devices for receiving echo signals of the sensing signals. Figure 3 This explanation uses one transmitting device and one receiving device as an example, without limitation.

[0112] When there are multiple transmitting devices and one receiving device, the sensing scenario can be called a multi-transmitter, single-receiver scenario. For example, sensing station A and sensing node C each transmit sensing signals, and the echo signal obtained after the sensing signals pass through the sensing target is received by sensing station B. Another example is that sensing station A and sensing node B each transmit sensing signals, and the echo signal obtained after the sensing signals pass through the sensing target is received by sensing station B.

[0113] When there is one transmitting device and multiple receiving devices, this scenario can be called a one-to-many scenario. For example, sensing station A transmits a sensing signal, and the echo signal obtained after the sensing signal passes through a sensing target is received by sensing station B and sensing node C. Another example is that sensing station A transmits a sensing signal, and the echo signal obtained after the sensing signal passes through a sensing target is received by sensing station A and sensing node B.

[0114] The sensing target can also be referred to as a target, a detected target, a sensed object, a sensed device, etc., without limitation. The sensing target can be any tangible object in the environment capable of reflecting, diffracting, or scattering electromagnetic waves. For example, the sensing target can be a stationary object such as a mountain, forest, or building. Alternatively, the sensing target can be a mobile object such as a vehicle, drone, pedestrian, or terminal. The embodiments of this application do not limit the specific implementation form of the sensing target.

[0115] The sensing measurement result can also be referred to as the sensing result, the detected result, the detected data, or the detected data, etc., without limitation. The sensing measurement result can be the result obtained by the receiving device processing the echo signal. For example, the sensing measurement result may include at least one of the following: the position of the sensed target, the velocity of the sensed target, the distance from the sensed target to the receiving device, the distance from the sensed target to the transmitting device, the direction of the sensed target, the angle of the sensed target, and the intensity of the echo signal from the sensed target, etc.

[0116] II. Sensing Signals:

[0117] In this application, the sensing signal may include a reference signal and / or a communication signal other than a reference signal.

[0118] The reference signal, also known as the pilot signal, is essential in communication systems for transmitting and receiving data, obtaining system synchronization and feedback channel information, and estimating the uplink or downlink channel. Channel estimation refers to the process of reconstructing or recovering the received signal to compensate for signal distortion caused by channel fading and noise fading. It uses known reference signals from both the transmitter and receiver to determine the time and frequency domain variations of the channel. These reference signals, distributed across one or more resource elements (REs) in the time-frequency two-dimensional space within orthogonal frequency division multiplexing (OFDM) symbols, have known amplitude and phase.

[0119] For example, the reference signal may include an uplink reference signal and a downlink reference signal. The uplink reference signal may include, but is not limited to, at least one of the following: a sounding reference signal (SRS), an uplink demodulation reference signal (DMRS), an uplink phase noise tracking reference signal (PTRS), or an uplink positioning signal (CRS). The downlink reference signal may include, but is not limited to, at least one of the following: a positioning reference signal (PRS), a downlink DMRS, a PTRS, a channel status information reference signal (CSI-RS), or a cell reference signal (CRS).

[0120] It should be understood that the reference signals listed above are merely examples and should not be construed as limiting this application. This application does not preclude the possibility of defining other reference signals in future agreements to achieve the same or similar functions.

[0121] III. Positioning methods in cellular networks:

[0122] Location methods in cellular networks may include: uplink time difference of arrival (UL-TDOA) location method, downlink time difference of arrival (DL-TDOA) location method, and multi-round trip time (Multi-RTT) location method. These will be described below.

[0123] (1) UL-TDOA positioning method:

[0124] The UL-TDOA positioning method can perform positioning based on the time of arrival of an uplink reference signal. Optionally, in the UL-TDOA positioning method, the terminal can send an uplink reference signal (e.g., SRS), and correspondingly, multiple access network devices can each receive the uplink reference signal. Each of these access network devices can send the time of arrival (TOA) information of the received uplink reference signal to the LMF. The LMF can determine the terminal's location based on the time difference of arrival (TDOA) between the access network devices and the locations of the multiple access network devices.

[0125] For example, such as Figure 4A As shown in (1), the uplink reference signal arrives at base station 1 at time T1 and at base station 2 at time T2. Therefore, the distance difference between the target UE and base station 1 (R1) and the target UE and base station 2 (R2) is R21 = R2 - R1 = (T2 - T1) * c, where c is the speed of light. Similarly, the uplink reference signal arrives at base station 1 at time T1 and at base station 3 at time T3. Therefore, the distance difference between the target UE and base station 1 (R1) and the target UE and base station 3 (R3) is R31 = R3 - R1 = (T3 - T1) * c. Thus, the target UE is located on both hyperbola 1, which has base station 1 and base station 2 as its foci and a constant distance difference of R21 between it and the two foci, and hyperbola 2, which has base station 1 and base station 3 as its foci and a constant distance difference of R31 between it and the two foci. That is, the target UE is located at the intersection of hyperbola 1 and hyperbola 2.

[0126] (2) DL-TDOA positioning method:

[0127] The DL-TDOA positioning method can perform positioning based on the arrival time of downlink reference signals. For example, in the DL-TDOA positioning method, multiple access network devices can each transmit downlink reference signals (e.g., PRS), and correspondingly, the terminal can each receive downlink reference signals from multiple access network devices. The terminal performs a downlink reference signal time difference (DL RSTD) measurement on the downlink reference signals from each access network device and reports the DL RSTD measurement information to the LMF. The LMF can determine the terminal's location based on the DL RSTD measurement information and the locations of the multiple access network devices.

[0128] For example, such as Figure 4A As shown in (2), the downlink reference signal from base station 1 arrives at the target UE at time T1, and the downlink reference signal from base station 2 arrives at the target UE at time T2. Therefore, the distance difference between the target UE and base station 1 (R1) and the target UE and base station 2 (R2) is R21 = R2 - R1 = (T2 - T1) * c, where c is the speed of light. Similarly, the downlink reference signal from base station 1 arrives at the target UE at time T1, and the downlink reference signal from base station 3 arrives at the target UE at time T3. Therefore, the distance difference between the target UE and base station 1 (R1) and the target UE and base station 3 (R3) is R31 = R3 - R1 = (T3 - T1) * c. Thus, the target UE is located on both hyperbola 1, which has base station 1 and base station 2 as its foci and a constant distance difference of R21 between it and the two foci, and hyperbola 2, which has base station 1 and base station 3 as its foci and a constant distance difference of R31 between it and the two foci. That is, the target UE is located at the intersection of hyperbola 1 and hyperbola 2.

[0129] (3) Multi-RTT positioning method:

[0130] Multi-RTT (Multi-RTT) positioning methods utilize the relative distances between a terminal and multiple access network devices for location. In this method, the terminal can transmit an uplink reference signal (e.g., SRS), and each of the multiple access network devices can transmit a downlink reference signal (e.g., PRS). These uplink and downlink reference signals are used to determine the round-trip time (RTT) between the terminal and each of the multiple access network devices. Based on the RTT between the terminal and each of the multiple access network devices, LMF can determine the distance between the terminal and each of the multiple access network devices, thereby determining the terminal's location.

[0131] The following explanation, using base station 1 as an example, explains that "the uplink reference signal and downlink reference signal can be used to determine the RTT between the terminal and each of the multiple access network devices".

[0132] For example, such as Figure 4B As shown, the terminal transmits an uplink reference signal at time T4; correspondingly, base station 1 receives the uplink reference signal at time T5. Base station 1 transmits a downlink reference signal at time T6; correspondingly, the terminal receives the downlink reference signal at time T7. The RTT between the terminal and base station 1 is (T7-T4)-(T6-T5).

[0133] Taking multiple access network devices as base stations 1 to 3 as an example, such as Figure 4C As shown, the distance from the target UE to base station 1 is R1, the distance from the target UE to base station 2 is R2, and the distance from the target UE to base station 3 is R3. The target UE is located at the intersection of spheres 1, 2, and 3. Sphere 1 is a sphere with base station 1 as its center and radius R1; sphere 2 is a sphere with base station 2 as its center and radius R2; and sphere 3 is a sphere with base station 3 as its center and radius R3.

[0134] Optionally, in the above positioning method, multiple access network devices can be three or more access network devices.

[0135] IV. Sampling Points (sample):

[0136] A sampling point can be a discrete data point obtained when sampling a continuous signal (such as a channel impulse response (CIR)). The sampling point data may include the location corresponding to the sampling point and the value of the sampling point at that location. In this application, the sampling point may also have other names, such as tap, time sampling point, sampling node, or sensing sampling point, as long as they have the same meaning, without limitation.

[0137] V. Perception Services:

[0138] In this application, the perception service can be a service with certain service requirements. For example, the perception service may 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 recognition.

[0139] Optionally, the sensed service can be replaced with (or understood as): sense the corresponding application type or sense the quality of service (QoS), etc.

[0140] VI. In this application, "instruction" or "for instruction" may include explicit instruction (or direct instruction) and implicit instruction (or indirect instruction). When describing information for instructing A, it may include whether the information explicitly instructs A or implicitly instructs A, but does not necessarily mean that the information carries A.

[0141] The indication methods involved in the embodiments of this application should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. Moreover, the sending period and / or sending time of these sub-information can be the same or different, without limitation.

[0142] In the embodiments of this application, "information" can be an explicit indication, that is, a direct indication through signaling, or obtained by combining other rules or parameters with parameters indicated by signaling, or by deduction. It can also be an implicit indication, that is, obtained based on rules or relationships, or based on other parameters, or by deduction. No limitation is imposed.

[0143] VII. In this application, communication between different devices can refer to direct communication between different devices (i.e., without the need for relaying or forwarding by other devices), or communication between different devices through other devices (i.e., requiring relaying or forwarding by other devices), or communication between a functional unit within a device and other devices through another functional unit. For example, "sending information to…(terminal)" can be understood as the destination of the information being the terminal, and may include sending information directly or indirectly to the terminal. "Receiving information from…(terminal)" can be understood as the source of the information being the terminal, and may include receiving information directly or indirectly from the terminal. Information may undergo necessary processing between the source and destination ends, such as format changes, digital-to-analog conversion, amplification, filtering, etc., but the destination end can understand the valid information from the source end. Similar expressions in this application can be understood in a similar way, and will not be elaborated further here.

[0144] 8. In this application, the words "exemplarily," "for example," "for instance," and "example" are used to indicate examples, illustrations, or descriptions, and are not intended to limit the scope of protection of this application. It should be understood that the examples in this application may also be implemented in other ways.

[0145] 9. In this application, any two of the programs, instructions, and code may be substituted for one another.

[0146] 10. In this application, "greater than or equal to" and "greater than" can be used interchangeably. For example, "A is greater than threshold 1" and "A is greater than or equal to threshold 1" can be used interchangeably.

[0147] XI. In this application, the sampling window may have other names, such as channel impulse response window, feedback window, etc., without limitation. The "size of the sampling window" may also have other names, such as the length of the sampling window, the size of the sampling window, or the duration corresponding to the sampling window, etc., without limitation.

[0148] 12. In this application, “in the case of…”, “when…”, “if…”, and “if…” can have the same meaning and can be used interchangeably.

[0149] Currently, in cellular network positioning methods, the receiving device of a reference signal can perform positioning by feeding back information corresponding to a sampling point. This sampling point can be the sampling point corresponding to the line of sight (LOS) path between the receiving and transmitting devices of the reference signal; in other words, this sampling point can be the sampling point where the receiving device first detected the reference signal; or, this sampling point can be the sampling point corresponding to the first path between the receiving and transmitting devices of the reference signal. Since this sampling point is not the sampling point corresponding to the path obtained through reflection, diffraction, or scattering from the sensed target, the information corresponding to this sampling point cannot be used to locate the sensed target.

[0150] Optionally, to help improve positioning performance, the reference signal receiving device can feed back information corresponding to a small number of sampling points other than the initial sampling point; in other words, the reference signal receiving device can feed back information corresponding to a small number of paths other than the initial path. For example, the reference signal receiving device can feed back information corresponding to a small number of stronger paths other than the initial path. However, in a sensing scenario, the energy of the reflection path of a moving target may be very weak compared to the energy of the initial path. Using the above method, the information fed back by the reference signal receiving device may not include information corresponding to the reflection path of the moving target, thus failing to detect and locate the moving target. In addition, the information from the small number of sampling points fed back by the reference signal receiving device may be irrelevant to the sensing target to be located, thus failing to locate the sensing target to be located.

[0151] How to feed back sensing measurement results in cellular networks requires further research.

[0152] The execution subject involved in the embodiments of this application will be introduced below.

[0153] The first device can be used to perform (or execute) sensing; or, in other words, the first device can be a sensing node. The first device can be a terminal or access network device, or a device applied to a terminal or access network device (e.g., a module, communication module, circuit, chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the functions of the terminal or access network device.

[0154] For example, the first device can be used to receive the echo signal of the sensed signal and to perform sense processing based on the echo signal of the sensed signal. For instance, the first device can be... Figure 3The access network device A shown in (1) or (6) is a device in the access network device A; or, the first device may be a Figure 3 Terminal A shown in (2) or (5) is either the device in terminal A or the first device can be... Figure 3 The access network device B shown in (3) or (7) is a device in the access network device B; or, the first device may be a Figure 3 Terminal B shown in (4) or (8) in the diagram, or the device in terminal B.

[0155] Optionally, in this example, the device for transmitting the sensing signal can be... Figure 3 The access network device A shown in any of (1), (3), (5) or (7) is a device in the access network device A; or, the device that transmits the sensing signal can be Figure 3 Terminal A, or any of (2), (4), (6) or (8) shown in the diagram, or a device in terminal A.

[0156] In some implementations, the first device may be a receiving device or a device within a receiving device in a multiple-transmitter-one-receiver scenario; in other words, the first device may receive echo signals from sensing signals from multiple devices. For example, if a terminal receives echo signals from sensing signals from multiple access network devices, the first device may be the terminal or a device within the terminal.

[0157] In other implementations, the first device may be a receiving device or a device within a receiving device in a one-to-many scenario; in other words, the first device may receive the echo signal of a sensing signal from a device. For example, the terminal may send sensing signals to multiple access network devices, and the first device may be any one of the multiple access network devices, or a device within any one of the multiple access network devices.

[0158] The second device can be used to manage sensing; in other words, the second device can be a node for managing sensing. Optionally, the second device can be a sensing management function or a device containing a sensing management function. For details on the sensing management function, please refer to... Figure 1B The description of the sensing management function in the communication system shown will not be repeated here.

[0159] In some possible configurations, the first device and the second device are located in the same device (e.g., a terminal or access network device). For example, the first device may perform the function of the second device; or, the first device and the second device may be the same device. Alternatively, the first device and the second device may be devices in the same device that perform different functions. In this configuration, the step of transmitting information (or messages) between the first device and the second device is optional.

[0160] In other possible configurations, the first and second devices are located in different devices. For example, the first device could be... Figure 3 In (1), the access network device A, or a device within the access network device A; the second device can be a sensing management function independent of the access network device A. For example, the first device can be... Figure 3 In (2), terminal A can be either the terminal A itself or a device within terminal A; the second device can be an access network device to which terminal A is connected or a device within that access network device, or the second device can be a sensing management function independent of terminal A and the access network device to which terminal A is connected. For example, the first device can be... Figure 3 In (3), the access network device B, or a device within the access network device B; the second device can be a sensing management function independent of the access network device B. For example, the first device can be... Figure 3 In (4), terminal B can be either the terminal B itself or a device within that terminal B. The second device can be an access network device to which terminal B is connected, or a device within that access network device. Alternatively, the second device can be a sensing management function independent of terminal B and the access network device to which terminal B is connected. For example, the first device could be... Figure 3 In (5), terminal A, or the device in terminal A; the second device can be the access network equipment to which terminal A is connected (e.g., Figure 3 (5) In this context, the access network device A) or a device within that access network device, or the second device may be a sensing management function of an access network device independent of terminal A and the terminal A's access network. For example, the first device may be... Figure 3 In (6), the access network device A, or a device within the access network device A; the second device can be a sensing management function independent of the access network device A. For example, the first device can be... Figure 3 The second device can be the access network device B in (7) or a device in the access network device B; Figure 3 The access network device C in (7) or the device in the access network device C. For example, the first device could be... Figure 3 Terminal B in (8) or the device in terminal B; the second device can be Figure 3 Access network device A in (8) or a device in access network device A.

[0161] This application provides a communication method. Figure 5 This is a flowchart illustrating the communication method provided in an embodiment of this application. Optionally, this method can be applied to cellular networks. Figure 5The following example illustrates the method using the first and second devices as the execution entities in this interactive illustration. The first device can be a terminal or a device within a terminal (e.g., a module, communication module, circuit, chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software that implements all or part of the terminal's functions. The second device can be an access network device or a device within an access network device (e.g., a module, communication module, circuit, chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software that implements all or part of the access network device's functions.

[0162] like Figure 5 As shown, the method includes:

[0163] S501: The second device sends the first information; correspondingly, the first device receives the first information.

[0164] The first information can be used to determine at least one sampling point; correspondingly, the first device can determine at least one sampling point based on the first information. The determination method will be described in detail in methods b1 to b5 below, and will not be elaborated here.

[0165] The at least one sampling point may be associated with one or more regions of interest. This association of the at least one sampling point with one or more regions of interest can be replaced by the at least one sampling point being determined based on one or more regions of interest. Optionally, the region of interest may include at least one of the following: the region where the object to be measured is located, the region to be measured, the target measurement region, or the field of view (FOV). The object to be measured may be replaced by at least one of the following: the target to be measured, the perceived target, or the perceived target to be measured, etc.

[0166] There are several ways to determine the region of interest (ROI), and the following are some examples. In some implementations, the ROI may be determined by a second device. For example, the second device may determine the sensing region based on the sensing service. For instance, if the sensing service is dynamic vehicle target detection, the second device may determine that the ROI includes the area where the road is located. Or, for example, if the sensing service is static environment reconstruction, the second device may determine that the ROI includes the areas on both sides of the road. In other implementations, the ROI may be indicated to the second device by another device (e.g., the first device or core network equipment). In still other implementations, the ROI may be pre-defined, such as as specified by a protocol. For example, the ROI may include the area where an electronic fence is located. It should be understood that the ROI can also be determined in other ways, without limitation.

[0167] There are several ways to represent a region of interest (ROI), and the following are some examples. In some examples, the ROI can be represented by the coordinates of the region. In other examples, the ROI can be represented by a geographical region; for example, if the geographical region is Campus A, then the ROI includes the area of ​​Campus A. In still other examples, the ROI can be indicated by the identifiers of one or more cells; for example, if the identifiers of one or more cells include the identifiers of cell #1 and cell #2, then the ROI includes the coverage area (or service area) of cell #1 and cell #2. It should be understood that the ROI can also be represented in other ways, without limitation.

[0168] As mentioned earlier, at least one sampling point is associated with one or more regions of interest. There are several ways to associate these points, such as method a1 or method a2:

[0169] Method a1: At least one sampling point belongs to at least one sampling window, which is a sampling window associated with the one or more regions of interest (hereinafter referred to as the second sampling window); that is, 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.

[0170] Wherein, at least one sampling point belongs to the second sampling window, which can be replaced (or understood as): the at least one sampling point includes some or all of the sampling points in the second sampling window.

[0171] For example, such as Figure 6 As shown, the one or more regions of interest include region of interest #1 and region of interest #2. Regions of interest #1 and region of interest #2 are associated with a second sampling window. The second sampling window can be... Figure 7A The sampling window is shown. The first four sampling points in this sampling window can be associated with region of interest #1 and are used to measure the sensing signal acting on the sensing target in region of interest #1. The last four sampling points in this sampling window can be associated with region of interest #2 and are used to measure the sensing signal acting on the sensing target in region of interest #2. The at least one sampling point may include... Figure 7A Some or all of the sampling points in the sampling window shown.

[0172] It should be understood that this example uses two regions of interest as illustrations, and in practical applications, there may be more or fewer regions of interest, without limitation.

[0173] exist Figure 7A And the following text Figures 7B to 7HIn this diagram, the horizontal axis can represent the transmission delay of the sensed signal, with units such as nanoseconds (ns), where t0 represents the transmission delay corresponding to the reference sampling point; alternatively, the horizontal axis can represent the transmission distance of the sensed signal, with units such as meters (m), where t0 represents the transmission distance corresponding to the reference sampling point; or, the horizontal axis can represent the index of the sampling point, with the time interval between adjacent sampling points being Δt, where t0 is the position of the reference sampling point index, and t0 represents the transmission delay or transmission distance corresponding to the reference sampling point. The vertical axis can represent the sensing measurement result (e.g., channel impulse response). The sensing measurement result can be a complex number, which can be represented by I + jQ, or by amplitude + phase. When representing a complex number using I + jQ, I can represent the real part of the complex number, and Q can represent the imaginary part. Both I and Q are real numbers. I and Q can be represented linearly, or by decibels (dB). When representing a complex number using amplitude + phase, the complex number can be represented as Ae0. jθ Here, A represents amplitude, and θ represents phase. Amplitude A can be represented linearly or in dB. Phase θ can be represented in radians, ranging from 0 to 2π; or in degrees, ranging from 0 to 360°. Optionally, the value of the ordinate can be a linear value of the sensing measurement result. Alternatively, the value of the ordinate can be a quantized value of the sensing measurement result, for example, a value quantized to 16 bits. The quantization range can be from 0 to the maximum CIR value, where the maximum CIR value is 2π / 2π. 16 Correspondingly, for example, the maximum value of CIR is 2. 16 -1. In this application, transmission delay can be replaced by propagation delay; transmission distance can be replaced by propagation distance.

[0174] It should be understood that, Figure 7A And the following text Figures 7B to 7H The example provided illustrates this by considering that the sampling points associated with two regions of interest do not overlap. In practical applications, there may be more or fewer regions of interest; the sampling points associated with different regions of interest may partially or completely overlap, or they may not overlap at all; there are no restrictions.

[0175] The second sampling window is associated with the one or more regions of interest, and can be replaced by at least one of the following: the 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 based on the one or more regions of interest. Accordingly, the second device can determine the parameters of the second sampling window based on the one or more regions of interest.

[0176] Optionally, the parameters of the second sampling window may include at least one of the following: the size of the second sampling window, or the offset of the starting position of the second sampling window relative to the reference sampling point. These will be explained below.

[0177] 1. Size of the second sampling window:

[0178] The size of the second sampling window can be related to d. max1 and d min1 Correlation. The size of the second sampling window can be related to d. max1 and d min1 The association can be replaced with: the size of the second sampling window is based on d. max1 and d min1 Certainly. Accordingly, the second device can be configured according to d. max1 and d min1 Determine the size of the second sampling window.

[0179] Where, d max1 It is d i The maximum value, d min1 It is d i The minimum value. For point P in one or more regions of interest i The distance between the sensing signal transmitting device and the device. For P i The distance between the receiving device and the sensing signal. In other words, d max1 The first point is the sum of the distances from the first point to the transmitting device and the distances from the first point to the receiving device, where the first point is the point in the one or more regions of interest where the sum of the distances to the transmitting device and the distances to the receiving device is the largest; d min1 The distance from the second point to the transmitting device is the sum of the distances from the second point to the receiving device, where the second point is the point in the one or more regions of interest whose sum of distances to the transmitting device and distances to the receiving device is the smallest. The receiving device may be the first device or the device in which the first device is located.

[0180] Still with Figure 6 For example, for region of interest #1, d i The value range is 120–150 meters; for region of interest #2, d i The value ranges from 180 to 210 meters. In this case, d max1 It is 210 meters, d min1 The first sampling window is 120 meters. The size of the second sampling window is determined based on 210 meters and 120 meters. For example, the size of the second sampling window could be... Figure 7A W in length1 .

[0181] 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... iThe 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.

[0182] In this way, the second device can be based on d max1 and d min1 This allows for the accurate determination of the size of the second sampling window.

[0183] Optionally, the size of the second sampling window can be expressed as W. length1 W length1 With d max1 and d min1 The association method can be shown as one of the terms in formulas (1) to (4); in other words, W length1 Satisfying one of the terms in formulas (1) to (4):

[0184]

[0185] Where c is the speed of light, and Δt is the time interval between adjacent sampling points of the channel impulse response. This indicates the rounding up operation. The first option indicates rounding down, while the second option indicates rounding to the nearest integer.

[0186] There are several ways to determine Δt. For example, Δt can be preset, such as as specified in the protocol; or, Δt can be determined by the second device, which is optional. After determining Δt, the second device can send information to the first device to indicate Δt; or, Δt can be indicated to the second device by other devices (such as the first device or core network equipment). For example, other devices can send information to the second device to indicate Δt.

[0187] This application does not limit the manner in which the information used to indicate Δt is indicated. In some examples, the information used to indicate Δt may explicitly indicate Δt. In other examples, the information used to indicate Δt may implicitly indicate Δt. For example, the information used to indicate Δt may indicate the sampling frequency of the channel impulse response, Δt = 1 / sampling frequency. Yet another example is that the information used to indicate Δt may indicate the distance interval between adjacent sampling points of the channel impulse response, Δt = distance interval / c.

[0188] The time interval between adjacent sampling points in the channel impulse response may also have other names, such as sampling time interval or sampling interval. As long as they have the same function, they are all within the scope of protection of this application.

[0189] Using this method, the second device can accurately determine the size of the second sampling window according to the above formula. In addition, 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 using any of the formulas (2) to (4). 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 size of the second sampling window obtained by any of the formulas (2) to (4) can match the signal processing operation performed in the baseband.

[0190] It should be understood that the above formulas (1) to (4) are merely examples, W length1 With d max1 and d min1 The association methods are not limited to this.

[0191] 2. The offset of the starting position of the second sampling window relative to the reference sampling point:

[0192] The offset of the starting position of the second sampling window relative to the reference sampling point can be related to d. min1 and d ref Correlation. The offset of the starting position of the second sampling window relative to the reference sampling point can be correlated with d. min1 and d ref The 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.

[0193] 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.

[0194] Still with Figure 6 For 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 min1It 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 could be 100 meters. Figure 7A W in offset1 .

[0195] 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.

[0196] 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.

[0197] 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):

[0198]

[0199] The contents of each parameter and operation symbol in formulas (5) to (8) can be found in the explanation of each parameter and operation symbol in formulas (1) to (4) above, and will not be repeated here.

[0200] Using this 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 formula. In addition, using any one of 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. 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 second sampling window relative to the reference sampling point obtained by any one of formulas (6) to (8) can match the signal processing operation performed in the baseband.

[0201] It should be understood that the above formulas (5) to (8) are merely examples, Woffset1 With d min1 and d ref The association methods are not limited to this.

[0202] 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 second sampling window relative to the reference sampling point can be compared with d. min1 and d ref The correlation can be replaced with (or understood as): the offset of the starting position of the second sampling window relative to the reference sampling point can be related to d. min1 Related; and / or, in the above formulas (5) to (8), "-d" may not be included. ref For example, formula (5) can be transformed into And / or, Figure 7A In this case, t0 takes the value of 0.

[0203] In method a1, at least one sampling point belongs to a sampling window (i.e., a second sampling window) associated with the one or more regions of interest. Thus, the first device can accurately determine at least one sampling point based on the second sampling window, thereby acquiring and feeding back sensing measurement results related to the one or more regions of interest based on the at least one sampling point.

[0204] Furthermore, in this approach, the second sampling window is associated with one or more regions of interest (ROIs); correspondingly, the second device can determine a sampling window for one or more ROIs. Thus, for each of the one or more ROIs, the second device can indicate only one sampling window to the first device, eliminating the need to indicate a separate sampling window for each ROI, thereby reducing signaling overhead.

[0205] Method a2: 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 of one or more regions of interest.

[0206] Wherein, at least one sampling point belongs to at least one sampling window, which can be replaced with (or understood as): the at least one sampling point includes some or all of the sampling points in at least one sampling window. Each sampling window in the at least one sampling window is associated with one of one or more regions of interest, which can be replaced with (or understood as): the at least one sampling window is associated with one or more regions of interest.

[0207] For example, such as Figure 6 As shown, the one or more regions of interest include region of interest #1 and region of interest #2. (As...) Figure 7BAs shown, the at least one sampling window may include sampling window #1 and sampling window #2. Sampling window #1 may be associated with region of interest #1 and is used to measure the sensing signal acting on a sensing target passing through region of interest #1. Sampling window #2 may be associated with region of interest #2 and is used to measure the sensing signal acting on a sensing target passing through region of interest #2. The at least one sampling point may include some or all of the sampling points in sampling window #1 and sampling window #2.

[0208] It should be understood that this example uses two regions of interest as illustrations, and in practical applications, there may be more or fewer regions of interest, without limitation.

[0209] At least one sampling window includes a first sampling window, which will be used as an example in the following description. Other sampling windows within this at least one sampling window can be referred to the first sampling window and will not be described again.

[0210] In some implementations, the first sampling window is associated with a first region of interest (ROI) within the one or more ROIs. This association can be replaced by at least one of the following: the parameters of the first sampling window are associated with the first ROI; or, the parameters of the first sampling window are determined based on the first ROI. Accordingly, the second device can determine the parameters of the first sampling window based on the first ROI.

[0211] 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.

[0212] 1. Size of the first sampling window:

[0213] 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.

[0214] 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 sensing signal transmitting device 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.

[0215] Still with Figure 6 For 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; its size is determined based on 150 meters and 120 meters. For example, the size of the first sampling window is... Figure 7B W in length2 1 When the first region of interest is region of interest #2, d max2 It is 210 meters, d min2 The first sampling window is 180 meters; its size is determined based on 210 meters and 180 meters. For example, the size of the first sampling window is... Figure 7B W in length2 2 .

[0216] 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... j The 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.

[0217] In this way, the second device can be based on d max2 and d min2 Accurately determine the size of the first sampling window.

[0218] Optionally, the size of the first sampling window can be expressed as W. length2 W length2 With d max2 and d min2The association method can be shown as one of the terms in formulas (9) to (12), in other words, W length2 Satisfying one of the terms in formulas (9) to (12):

[0219]

[0220] The contents of each parameter and operation symbol in formulas (9) to (12) can be found in the explanation of each parameter and operation symbol in formulas (1) to (4), and will not be repeated here.

[0221] Using this method, the second device can accurately determine the size of the first sampling window according to the above formula. In addition, 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 using any of formulas (10) to (12). 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 size of the first sampling window obtained by any of formulas (10) to (12) can match the signal processing operation performed in the baseband.

[0222] It should be understood that the above formulas (9) to (12) are merely examples, W length2 With d max2 and d min2 The association methods are not limited to this.

[0223] 2. The offset of the starting position of the first sampling window relative to the reference sampling point:

[0224] The offset of the starting position of the first sampling window relative to the reference sampling point can be related to d. min2 and d ref Correlation. The offset of the starting position of the first sampling window relative to the reference sampling point can be correlated with d. min2 and d ref The association can be replaced with: the offset of the starting position of the first sampling window relative to the reference sampling point is based on d. min2 and d ref Certainly. Accordingly, the second device can be configured according to d. min2 and d ref The offset of the starting position of the first sampling window relative to the reference sampling point is determined.

[0225] Where, d min2 For details, please refer to "1. Size of the first sampling window" above regarding d. min2 The explanation for this will not be repeated. refThis 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.

[0226] Still with Figure 6 For 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. The distance between the transmitting and receiving devices of the sensing signal is 100 meters. When the first region of interest is region of interest #1, d min2 It is 120 meters, d ref The distance is 100 meters; the offset of the starting position of the first 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 first sampling window relative to the reference sampling point is... Figure 7B W in offset2 1 When the first region of interest is region of interest #2, d min2 It is 180 meters, d ref The distance is 100 meters; the offset of the starting position of the first sampling window relative to the reference sampling point is determined based on 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... Figure 7B W in offset2 2 .

[0227] 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... j The 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.

[0228] 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.

[0229] 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):

[0230]

[0231] 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.

[0232] 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.

[0233] 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.

[0234] 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 Related; and / or, in the above formulas (13) to (16), "-d" may be excluded. ref For example, formula (13) can be transformed into And / or, Figure 7B In this case, t0 takes the value of 0.

[0235] In method a2, at least one sampling point belongs to at least one sampling window associated with the one or more regions of interest. Thus, the first device can accurately determine at least one sampling point based on the at least one sampling window, thereby acquiring and feeding back sensing measurement results related to the one or more regions of interest based on the at least one sampling point.

[0236] Furthermore, in this approach, each region of interest (ROI) can be associated with a sampling window, so that all sampling points within the sampling window are associated with the ROI. The first device can report only the sensing measurement results corresponding to the sampling points associated with the ROI, and may not report the sensing measurement results corresponding to sampling points unrelated to the ROI, thereby saving the transmission overhead of sensing measurement results.

[0237] The first piece of information can be carried in a traditional message (e.g., a measurement request or a request for location information) or in a new message. For example, the first piece of information can be carried in a radio resource control (RRC) message, a medium access control-control element (MAC CE) message, or a downlink control information (DCI) message.

[0238] The first information may have various names, such as control information, configuration information, indication information, request information, measurement request information, request sensing information, or request positioning information. As long as they have the same function, they are all within the scope of protection of this application.

[0239] S502: The first device sends the second information; correspondingly, the second device receives the second information.

[0240] The second information indicates the sensing measurement result corresponding to at least one sampling point. Optionally, the first device may measure the sensing signal at the at least one sampling point to obtain the sensing measurement result corresponding to the at least one sampling point, and send the second information indicating the sensing measurement result corresponding to the at least one sampling point to the second device.

[0241] In some implementations, the sensing measurement results may include: channel impulse response information, and / or, information about the sensing target. These will be explained below.

[0242] 1. Channel impulse response information:

[0243] Optionally, the channel impulse response information includes at least one of the following: in-phase component (I-component) and quadrature-phase component (Q-component) information of the channel impulse response; or, amplitude and phase information of the channel impulse response. Thus, the second device can determine the modulation signal corresponding to at least one sampling point based on the channel impulse response information corresponding to at least one sampling point.

[0244] In some examples, the channel impulse response information includes the I-component 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 results corresponding to the at least one sampling point may include: the I-component and Q-component information of the channel impulse response corresponding to sampling point #1; the I-component and Q-component information of the channel impulse response corresponding to sampling point #2; and the I-component and Q-component information of the channel impulse response corresponding to sampling point #3.

[0245] In other examples, the channel impulse response information includes amplitude 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 results corresponding to the at least one sampling point may include: amplitude and phase information of the channel impulse response corresponding to sampling point #1; amplitude and phase information of the channel impulse response corresponding to sampling point #2; and amplitude and phase information of the channel impulse response corresponding to sampling point #3.

[0246] 2. Perceiving target information:

[0247] For example, the information of the perceived target may include at least one of the following: the position information of the perceived target, the velocity information of the perceived target, the direction information of the perceived target, the angle information of the perceived target, the intensity information of the echo signal of the perceived target, the distance information from the perceived target to the receiving device, and the distance information from the perceived target to the transmitting device.

[0248] Optionally, the information of the perceived target can be obtained by processing the channel impulse response information, and this application does not limit the specific processing method.

[0249] The second information can be carried in traditional messages (e.g., measurement response or provide location information) or in new messages. For example, the second information can be carried in RRC messages, MAC CE, or uplink control information (UCI).

[0250] The second information can have various names, such as feedback information, response information, measurement response information, providing sensing information, or providing positioning information. As long as it has the same function, it is within the scope of protection of this application.

[0251] pass Figure 5The method shown allows a first device to determine at least one sampling point associated with one or more regions of interest (ROIs) based on first information from a second device, and to feed back the sensing measurement results corresponding to the at least one sampling point to the second device. In this way, the sensing measurement results fed back by the first device can be associated with the ROIs, and thus can be used to locate sensing targets within the ROIs.

[0252] As previously stated, the first information can be used to determine at least one sampling point; correspondingly, the first device can determine at least one sampling point based on the first information. The determination can be performed in various ways, for example, at least one of methods b1 to b5.

[0253] Method b1: The first information indicates at least one sampling window, wherein the at least one sampling point includes all sampling points within the at least one sampling window. Accordingly, the first device can determine at least one sampling window based on the first information, and determine that the at least one sampling point includes all sampling points within the at least one sampling window.

[0254] In some examples, the at least one sampling window indicated by the first information may be the second sampling window in mode a1, and the at least one sampling point may include all sampling points in the second sampling window. For example, the second sampling window is... Figure 7A The sampling window shown may include at least one sampling point. Figure 7A All sampling points in the sampling window shown.

[0255] In other examples, the at least one sampling window indicated by the first information may be at least one sampling window in mode a2, and the at least one sampling point may include all sampling points within the at least one sampling window. For example, the at least one sampling window includes... Figure 7B The sampling windows #1 and #2 are shown. The at least one sampling point may include all sampling points in sampling window #1 and all sampling points in sampling window #2.

[0256] The following describes how the first information indicates at least one sampling window.

[0257] In some implementations, the first information may indicate at least one of the following: the offset of the reference position of each sampling window in the at least one sampling window relative to a reference sampling point, the size of each sampling window in the at least one sampling window, or the period of each sampling window in the at least one sampling window. The reference position may be, for example, a start position, an end position, a center position, or a position specified or agreed upon by the protocol; the period of the sampling window can be understood as the duration of sampling through the sampling window.

[0258] In some examples, the first information may indicate: the offset of the reference position of each sampling window in the at least one sampling window relative to the reference sampling point, the size of each sampling window in the at least one sampling window, and the period of each sampling window in the at least one sampling window.

[0259] For example, the at least one sampling window is Figure 7A The sampling window shown; the first information can indicate: the offset W of the starting position of this sampling window relative to the reference sampling point. offset1 The size W of the sampling window length1 And the period #1 of the sampling window. For example... Figure 7C As shown, within period #1, there can be at least one Figure 7A The sampling window is shown. The first device can determine the sampling window based on the t0 and W values ​​corresponding to the reference sampling point. offset1 and W length1 Determine at least one sampling window within period #1, and sample the sensed signal within at least one sampling window within period #1.

[0260] For example, the at least one sampling window may include Figure 7B The sampling windows #1 and #2 are shown; the first information indicates: the offset W of the starting position of sampling window #1 relative to the reference sampling point. offset2 1 The size W of sampling window #1 length2 1 The period of sampling window #1 is #2, and the offset W of the starting position of sampling window #2 relative to the reference sampling point is... offset2 2 The size W of sampling window #2 length2 2 The period of sampling window #2 is #3. For example... Figure 7D As shown, within period #2, at least one sampling window #1 can exist; within period #3, at least one sampling window #2 can exist. The first device can determine the sampling point based on t0 corresponding to the reference sampling point. offset2 1 and W length2 1 Determine at least one sampling window #1 within period #2, and sample the sensed signal within at least one sampling window #1 within period #2; based on t0 corresponding to the reference sampling point, W offset2 2 and W length2 2 Determine at least one sampling window #2 within period #3, and sample the sensed signal within at least one sampling window #2 within period #3. It should be understood that the periods of different sampling windows within at least one sampling window may be the same or different. Figure 7DThe following explanation uses the example of different sampling window periods.

[0261] In other examples, the first information may indicate: the offset of the reference position of each sampling window in the at least one sampling window relative to the reference sampling point, and the size of each sampling window in the at least one sampling window.

[0262] For example, the at least one sampling window can be Figure 7A The sampling window shown; the first information can indicate: the offset W of the starting position of this sampling window relative to the reference sampling point. offset1 and the size W of the sampling window length1 Thus, the first device can determine the values ​​of t0 and W corresponding to the reference sampling point. offset1 and W length1 ,Sure Figure 7A The sampling window shown.

[0263] For example, the at least one sampling window may include Figure 7B The sampling windows #1 and #2 are shown; the first information indicates: the offset W of the starting position of sampling window #1 relative to the reference sampling point. offset2 1 The size W of sampling window #1 length2 1 The starting position of sampling window #2 is offset by W relative to the reference sampling point. offset2 2 And the size W of sampling window #2 length2 2 Thus, the first device can determine W based on t0 corresponding to the reference sampling point. offset2 1 and W length2 1 Determine sampling window #1; based on t0 corresponding to the reference sampling point, W offset2 2 and W length2 2 , Determine sampling window #2.

[0264] It should be understood that the way the first information indicates at least one sampling window is not limited to this. For example, the first information may also indicate the first or last sampling point in each sampling window, and the number of sampling points contained in each sampling window. Also, for example, the first information may indicate both the first and last sampling points in each sampling window.

[0265] In the above manner, the first information can accurately indicate at least one sampling window; correspondingly, the first device can accurately determine at least one sampling window based on the first information.

[0266] In some implementations, the first information may also indicate the type of reference sampling point. The type of reference sampling point may include at least one of the following: a sampling point corresponding to a line-of-sight path, a sampling point with the strongest corresponding sensing measurement result, or a sampling point agreed upon by a common clock. The sampling point corresponding to a line-of-sight path may be replaced by at least one of the following: the sampling point with the earliest detected sensing measurement result (or sensing signal), the sampling point corresponding to the earliest detected path, or the sampling point corresponding to the earliest earlist tap. The sampling point with the strongest corresponding sensing measurement result may be replaced by at least one of the following: the sampling point with the strongest corresponding sensing signal strength, or the sampling point corresponding to the strongest tap. Through this implementation, the first device can accurately determine the type of reference sampling point based on the first information.

[0267] In other implementations, the type of reference sampling point can be predefined, such as by a protocol. For example, the type of reference sampling point can be predefined as at least one of the following: a sampling point corresponding to the line of sight, a sampling point with the strongest corresponding sensing measurement result, or a sampling point agreed upon by a common clock. With this implementation, the first device can accurately determine the type of reference sampling point.

[0268] The type of reference sampling point can be used to determine the reference sampling point; accordingly, the first device can determine the reference sampling point according to the type of reference sampling point, and thus determine at least one sampling window according to t0 corresponding to the reference sampling point.

[0269] In some examples, the reference sampling point may be determined by the first device based on measurements. For instance, if the reference sampling point is the sampling point corresponding to the line of sight or the sampling point with the strongest corresponding sensing measurement result, the first device may determine the reference sampling point based on the measurement result of the sensing signal.

[0270] In other examples, the reference sampling point may be agreed upon by the first and second devices; or it may be indicated by the second device to the first device. For example, in the case where the reference sampling point is a sampling point agreed upon through a common clock, the reference sampling point may be agreed upon by the first and second devices; or it may be indicated by the second device to the first device.

[0271] Optionally, the reference sampling point may satisfy at least one of the following conditions #1 to #2:

[0272] Condition #1: The transmission delay corresponding to the reference sampling point is known (or fixed or constant).

[0273] For example, the reference sampling point is the sampling point corresponding to the line-of-sight path. With the transmitting and receiving devices for the sensed signal fixed, the line-of-sight path is known. Therefore, the transmission delay corresponding to the line-of-sight path is known, and correspondingly, the transmission delay corresponding to the reference sampling point is known, thus satisfying condition #1.

[0274] For example, the reference sampling point is the sampling point corresponding to the time when the receiving device receives the synchronization reference signal. This synchronization reference signal is sent from the transmitting device to the receiving device via a connection, and the transmission time of the synchronization reference signal is the same as the transmission time of the sensing signal. With the transmitting and receiving devices of the sensing signal fixed, the arrival path of the synchronization signal is known. Therefore, the transmission delay corresponding to the arrival path of the synchronization signal is known, and correspondingly, the transmission delay corresponding to the reference sampling point is known, thus condition #1 is satisfied.

[0275] For a reference sampling point that satisfies condition #1, the relative transmission delay of any sampling point relative to the reference sampling point can be used to determine the transmission delay and / or transmission distance corresponding to that sampling point; in this way, the sensing measurement results corresponding to different sampling points can be aligned, which facilitates subsequent multi-antenna angle measurement and / or speed measurement based on the sensing measurement results (e.g., channel impulse response) of different sampling points (corresponding to different times).

[0276] Condition #2: The Doppler (or Doppler frequency shift) change corresponding to the reference sampling point is 0.

[0277] Optionally, condition #2 may be replaced with (or understood as) at least one of the following: the Doppler corresponding to the reference sampling point is known, fixed, and does not change over time; the diameter corresponding to the reference sampling point does not change during the Doppler measurement; or, the Doppler corresponding to the diameter of the reference sampling point is known, fixed, and does not change over time.

[0278] For example, the reference sampling point is the sampling point corresponding to the line of sight. With the transmitting and receiving devices of the sensed signal fixed, the Doppler corresponding to the line of sight will not change over time, i.e., the Doppler change corresponding to the line of sight is 0. Correspondingly, the Doppler change corresponding to the reference sampling point is 0, and condition #2 is satisfied.

[0279] For example, the reference sampling point is the sampling point corresponding to the time when the receiving device receives the synchronization reference signal. This synchronization reference signal is sent from the transmitting device to the receiving device via a connection, and the transmission time of the synchronization reference signal is the same as the transmission time of the sensing signal. With the transmitting and receiving devices of the sensing signal fixed, the arrival path of the synchronization signal will not change over time. Consequently, the Doppler change corresponding to the reference sampling point is 0, and condition #2 is satisfied.

[0280] During Doppler measurements, the dynamic changes of the sampling points are to be measured. Since these dynamic changes are relative, for a reference sampling point that satisfies condition #2, the Doppler reading for any sampling point can be obtained from the Doppler reading for the reference sampling point, thereby improving the accuracy of the Doppler reading for the sampling point.

[0281] Through method b1, the first device can accurately determine at least one sampling window based on the first information, thereby accurately determining at least one sampling point based on the at least one sampling window.

[0282] Method b2: The first information indicates at least one sampling window and a first bitmap. The first bitmap indicates whether to provide feedback on the sensing measurement result corresponding to the sampling point in at least one sampling window; in other words, the first bitmap indicates whether the sampling point in at least one sampling window belongs to at least one sampling point. Accordingly, the first device can determine at least one sampling window and the first bitmap based on the first information, and determine at least one sampling point based on the at least one sampling window and the first bitmap.

[0283] The first information indicates the specific content of at least one sampling window, which can be referred to in the description of "the first information indicates at least one sampling window" in method b1, and will not be repeated here. The specific way in which the first information indicates the first bitmap is not limited; for example, the first information may include the first bitmap.

[0284] In some implementations, at least one bit in the first bitmap may correspond one-to-one with a sampling point in at least one sampling window. This at least one bit may be some 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 sensing measurement result corresponding to the sampling point corresponding to that bit. For example, if the value of a bit in the at least one bit is a first value (e.g., 1 or 0), it indicates that the sensing measurement result corresponding to the sampling point corresponding to that bit is fed back; if the value of a bit in the at least one bit is a second value (e.g., 0 or 1), it indicates that the sensing measurement result corresponding to the sampling point corresponding to that bit is not fed back. The first value and the second value are different.

[0285] Optionally, the at least one bit may be arranged in chronological order according to the time of its corresponding sampling point. For example, the at least one sampling window is as follows: Figure 7E As shown, the first value is 1, and the second value is 0. If the value of the first bitmap is 1111001011, it indicates the sensing measurement results corresponding to the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window, and does not indicate the sensing 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 this sampling window belong to at least one sampling point. For example, the at least one sampling window is as follows: Figure 7F As shown, the first value is 1 and the second value is 0. If the value of the first bit map is 11111011, it indicates the sensing measurement results corresponding to the 1st to 4th sampling points in the feedback sampling window #1, the sensing measurement results corresponding to the 1st and 3rd to 4th sampling points in the feedback sampling window #2, and does not indicate the sensing measurement results corresponding to the 2nd sampling point in the feedback sampling window #2; in other words, the 1st to 4th sampling points in the sampling window #1 and the 1st and 3rd to 4th sampling points in the feedback sampling window #2 belong to at least one of the sampling points.

[0286] Optionally, the number of bits in the first bitmap may be greater than or equal to the number of sampling points in the at least one sampling window. For example, as Figure 7E As shown, if the number of sampling points in the at least one sampling window is 10, then the number of bits in the first bitmap is greater than or equal to 10. For example, as... Figure 7F As shown, if the number of sampling points in the at least one sampling window is 8, then the number of bits in the first bit map is greater than or equal to 8.

[0287] Through method b2, the first device can accurately determine at least one sampling window and a first bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the first bitmap.

[0288] In addition, in this method, the first bit map can indicate whether to feed back the sensing measurement results corresponding to the sampling points in at least one sampling window. In this way, the first device may not feed back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of the sensing measurement results.

[0289] Furthermore, when the at least one sampling window is the second sampling window in mode a1, the first bit map can indicate the perceptual measurement results corresponding to the sampling points associated with one or more regions of interest in the second sampling window, and not provide the perceptual measurement results corresponding to the sampling points not associated with one or more regions of interest in the second sampling window, so that the feedback perceptual measurement results are all related to the one or more regions of interest.

[0290] Method b3: The first information indicates at least one sampling window. The at least one sampling point includes: at least one sampling point within the sampling window whose corresponding perceived measurement result is greater than a first threshold. Accordingly, the first device can determine at least one sampling window based on the first information, and determine at least one sampling point based on the at least one sampling window and the first threshold.

[0291] The specific content of the first information indicating at least one sampling window can be found in the description of "the first information indicating at least one sampling window" in method b1, and will not be repeated here. The first threshold can be preset, such as as specified by the protocol; or it can be determined by the first device; or it can be indicated to the first device by other devices (e.g., the second device or core network equipment). For example, the first information can indicate the first threshold.

[0292] For example, the at least one sampling window is as follows Figure 7G As shown. If the perceived measurement result corresponding to the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window is greater than the first threshold, then at least one sampling point includes: the 1st to 4th, 7th, 9th to 10th sampling points in the sampling window.

[0293] For example, the at least one sampling window such as Figure 7H As shown. If the perception measurement results corresponding to the 1st to 4th sampling points in sampling window #1 are greater than the first threshold, and the perception measurement results corresponding to the 1st, 3rd to 4th sampling points in sampling window #2 are greater than the first threshold, then at least one sampling point includes: the 1st to 4th sampling points in sampling window #1, and the 1st, 3rd to 4th sampling points in sampling window #2.

[0294] Through method b3, the first device can accurately determine at least one sampling window based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the first threshold.

[0295] In addition, in this method, at least one sampling point includes at least one sampling point in the sampling window whose corresponding sensing measurement result is greater than a first threshold. In this way, the first device may not feed back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of sensing measurement results.

[0296] Method b4: The first information indicates at least one sampling window and a second bitmap. The second bitmap indicates whether the sensing measurement result corresponding to each group of sampling points in at least one set of sampling points is fed back; in other words, the second bitmap indicates whether each group of sampling points in the at least one set of sampling points contains sampling points belonging to at least one sampling point. Wherein, at least one set of sampling points belongs to the at least one sampling window. Accordingly, the first device can determine at least one sampling window and the second bitmap based on the first information, and determine at least one sampling point based on the at least one sampling window and the second bitmap.

[0297] The first information indicates the specific content of at least one sampling window, which can be referred to in the description of "the first information indicates at least one sampling window" in method b1, and will not be repeated here. The specific way in which the first information indicates the second bitmap is not limited; for example, the first information may include the second bitmap.

[0298] In some implementations, one or more bits in the second bitmap may correspond one-to-one with the at least one set of sampling points. These one or more bits may be some or all of the bits in the second bitmap. Each of these one or more bits can be used to indicate whether to feed back the perceptual measurement result corresponding to the sampling point of the group corresponding to that bit. For example, if one of these one or more bits takes the value of a third value (e.g., 1 or 0), it indicates that the perceptual measurement result of the sampling point of the group corresponding to that bit is fed back; if one of these one or more bits takes the value of a fourth value (e.g., 0 or 1), it indicates that the perceptual measurement result of the sampling point of the group corresponding to that bit is not fed back. The third and fourth values ​​are different.

[0299] For example, the one or more bits may be arranged in chronological order of the sampling points in their corresponding groups. For instance, the at least one sampling window may be... Figure 7I As shown, the third value is 1, and the fourth value is 0. If the value of the second bitmap is 10011, it indicates the sensing measurement results corresponding to the 1st, 4th, and 5th sampling points in the feedback sampling window, but does not provide feedback on the sensing measurement results corresponding to the 2nd and 3rd sampling points in the sampling window. For example, the at least one sampling window is as follows: Figure 7J As shown, the third value is 1 and the fourth value is 0. If the value of the second bit map is 1011, it indicates the sensing measurement result corresponding to the first group of sampling points in sampling window #1, the sensing measurement result corresponding to the first and second groups of sampling points in sampling window #2, and does not provide feedback on the sensing measurement result corresponding to the second group of sampling points in sampling window #1.

[0300] Optionally, the number of bits in the second bitmap may be greater than or equal to the number of groups of at least one set of sampling points. For example, as Figure 7I As shown, if the number of sampling points in the at least one sampling window is 5, then the number of bits in the second bitmap is greater than or equal to 5. For example, as... Figure 7J As shown, if the number of sampling points in the at least one sampling window is 4, then the number of bits in the second bitmap is greater than or equal to 4.

[0301] Through method b4, the first device can accurately determine at least one sampling window and a second bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window and the second bitmap.

[0302] In addition, in this method, the second bit map indicates whether to feed back the sensing measurement results corresponding to each of the at least one set of sampling points. In this way, the first device may not feed back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of sensing measurement results.

[0303] Furthermore, this method can group and indicate whether to feed back the sensing measurement results corresponding to each group of sampling points. In this way, when the sampling points that need to feed back the sensing measurement results are relatively sparse, this method does not need to explicitly indicate whether to feed back the sensing measurement results corresponding to each sampling point, thereby reducing signaling overhead.

[0304] In some implementations, where the second bitmap indicates the sensing measurement result corresponding to the first set of sampling points in at least one set of sampling points, the at least one sampling point may include all sampling points in the first set of sampling points. For example, with Figure 7I For example, the second bitmap indicates the perceived measurement results corresponding to the 1st, 4th, and 5th sampling points in the feedback sampling window, where at least one sampling point may include the 1st to 2nd, 7th to 10th sampling points in the sampling window. Also, for example, with... Figure 7J For example, the second bitmap indicates: the perception measurement result corresponding to the first group of sampling points in the feedback sampling window #1, and the perception measurement result corresponding to the first to second groups of sampling points in the feedback sampling window #2. The at least one sampling point may include: the first to second sampling points in the sampling window #1, and the first to fourth sampling points in the sampling window #2.

[0305] In other implementations, where the second bitmap indicates the sensing measurement result corresponding to the first set of sampling points in at least one set of sampling points, the first information may also indicate a third bitmap, which indicates whether to feed back the sensing measurement result corresponding to each sampling point in the first set of sampling points; in other words, the third bitmap indicates whether each sampling point in the first set of sampling points belongs to at least one sampling point. Accordingly, the first device can determine at least one sampling point based on at least one sampling window, the second bitmap, and the third bitmap.

[0306] In some examples, where the second bitmap indicates feedback of the perceptual measurement results corresponding to N sets of sampling points from at least one set of sampling points, the M bits in the third bitmap can correspond one-to-one with the sampling points in the N sets of sampling points. M and N are positive integers. The M bits can be some or all of the bits in the third bitmap. Each of the M bits can be used to indicate whether to feedback the perceptual measurement result corresponding to the sampling point corresponding to that bit. For example, if the value of a bit in the M bits is the fifth value (e.g., 1 or 0), it indicates that the perceptual measurement result of the sampling point corresponding to that bit is fed back; if the value of a bit in the M bits is the sixth value (e.g., 0 or 1), it indicates that the perceptual measurement result of the sampling point corresponding to that bit is not fed back. The fifth and sixth values ​​are different.

[0307] Optionally, the M bits can be arranged in chronological order according to the time of their corresponding sampling points. For example, the at least one sampling window is as follows: Figure 7IAs shown, the fifth value is 1, the sixth value is 0, and the second bitmap indicates the sensing measurement results corresponding to the 1st, 4th, and 5th sampling points in the feedback sampling window. If the value of the third bitmap is 111011, then the third bitmap indicates: the 1st to 2nd sampling points in the 1st sampling point group of the feedback sampling window, the 1st sampling point in the 4th sampling point group of the feedback sampling window, and the 1st to 2nd sampling points in the 5th sampling point group of the feedback sampling window; correspondingly, the at least one sampling point includes: the 1st to 2nd, 7th, 9th to 10th sampling points in the sampling window. For example, the at least one sampling window is as follows: Figure 7J As shown, the fifth value is 1, the sixth value is 0, and the second bitmap indicates the sensing measurement results corresponding to the first group of sampling points in feedback sampling window #1 and the first to second groups of sampling points in feedback sampling window #2. If the value of the third bitmap is 111011, then the third bitmap indicates the first to second sampling points in the first group of sampling points in feedback sampling window #1, the first sampling point in the first group of sampling points in feedback sampling window #2, and the first to second sampling points in the second group of sampling points in feedback sampling window #2; correspondingly, the at least one sampling point includes the first to second sampling points in sampling window #1, and the first, third, and fourth sampling points in sampling window #2.

[0308] Through this implementation, the first device can accurately determine at least one sampling window, a second bitmap, and a third bitmap based on the first information, and accurately determine at least one sampling point based on the at least one sampling window, the second bitmap, and the third bitmap.

[0309] Furthermore, in this implementation, the second bitmap indicates whether to feed back the sensing measurement result corresponding to each group of sampling points in at least one set of sampling points. If the second bitmap indicates that the sensing measurement result corresponding to the first group of sampling points in at least one set of sampling points should be fed back, the third bitmap indicates whether to feed back the sensing measurement result corresponding to each sampling point in the first set of sampling points. In this way, the first device can avoid feeding back the sensing measurement results corresponding to all sampling points in at least one sampling window, thereby reducing the feedback overhead of the sensing measurement results.

[0310] Method b5: The first information includes the index of at least one sampling point.

[0311] In this way, the first device can accurately determine at least one sampling point based on the first information. Furthermore, when the sampling points for which the sensing measurement results need to be fed back are sparse, this method does not require individually instructing each sampling point whether to feed back the sensing measurement result for that point, thereby saving signaling overhead.

[0312] Optionally, any two of the above methods b1 to b5 can be independent or combined with each other.

[0313] In some examples, methods b2 and b3 may be combined. For example, the first information indicates at least one sampling window and a first bitmap. The first bitmap may indicate whether to feed back the perceived measurement result corresponding to a sampling point in at least one sampling window. The at least one sampling point may include: among the sampling points fed back by the first bitmap, the sampling point whose corresponding perceived measurement result is greater than a first threshold.

[0314] In other examples, methods b3 and b4 may be combined. For example, the first information indicates at least one sampling window and a second bitmap. The second bitmap indicates whether to feed back the perceived measurement result corresponding to each of the at least one set of sampling points. The at least one sampling point may include: sampling points in each set of sampling points fed back as indicated by the second bitmap where the corresponding perceived measurement result is greater than a first threshold. Also, for example, the first information indicates at least one sampling window, a second bitmap, and a third bitmap. The second bitmap indicates whether to feed back the perceived measurement result corresponding to each of the at least one set of sampling points. If the second bitmap indicates that the perceived measurement result corresponding to the first set of sampling points in the at least one set of sampling points is being fed back, the third bitmap indicates whether to feed back the perceived measurement result corresponding to each sampling point in the first set of sampling points. The at least one sampling point may include: sampling points in the feedback sampling points where the corresponding perceived measurement result is greater than a first threshold, indicated by both the second and third bitmaps.

[0315] In some examples, mode b2 and mode b4 can be combined. For instance, the second device can determine whether to use mode b2 or mode b4 based on the number of sampling points for which the sensing measurement results are to be fed back and a quantity threshold. If the number of sampling points for which the sensing measurement results are to be fed back is less than the quantity threshold, the second device can determine to use mode b4; and / or, if the number of sampling points for which the sensing measurement results are to be fed back is greater than or equal to the quantity threshold, the second device can determine to use mode b2. As another example, the second device can determine whether to use mode b2 or mode b4 based on the ratio of the number of sampling points for which the sensing measurement results are to be fed back to the number of sampling points in at least one sampling window and a ratio threshold. If the ratio is less than the ratio threshold, the second device can determine to use mode b4; and / or, if the ratio is greater than or equal to the ratio threshold, the second device can determine to use mode b2. The quantity threshold and / or ratio threshold can be preset, such as those specified in a protocol; or they can be determined by the second device; or they can be indicated to the second device by other devices (e.g., the first device or core network equipment). Through this example, the second device can determine whether to use mode b2 or mode b4 based on the sparsity of the sampling points for which the sensing measurement results are to be fed back. If the sampling points for which the sensing measurement results are to be fed back are relatively sparse, the second device can determine to use mode b4; and / or, if the sampling points for which the sensing measurement results are to be fed back are relatively dense, the second device can determine to use mode b2.

[0316] Optionally, when mode b2 and mode b4 are combined, the first information may also indicate whether mode b2 or mode b4 is used; or, the first information may indicate whether to use one layer or two layers of bitmap to indicate whether to provide feedback on the sensing measurement results corresponding to the sampling points in at least one sampling window; or, the first information may indicate whether the bitmap type is one layer or two layers, and when the bitmap type is one layer, mode b2 is used, and when the bitmap type is two layers, mode b4 is used.

[0317] In some possible approaches, the first information also indicates the sampling frequency of the channel impulse response. This sampling frequency may be bandwidth-dependent; for example, it may be greater than or equal to the bandwidth. This bandwidth may be the bandwidth of the sensing resource. The sensing resource may be a portion or the entire bandwidth of the full frequency band, for example, the bandwidth part (BWP). The sensing resource may overlap with or be independent of the bandwidth of the communication resource.

[0318] Since the sampling frequency of the channel impulse response is related to the time interval between adjacent sampling points of the channel impulse response, the first information also indicates the sampling frequency of the channel impulse response, which can be replaced (or understood as): the first information also indicates the time interval between adjacent sampling points of the channel impulse response.

[0319] There are various ways, without limitation, for the first information to indicate the sampling frequency of the channel impulse response. 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 the time interval between adjacent sampling points of the channel impulse response, the reciprocal of which can be the sampling frequency of the channel impulse response. Yet another example is that the first information can indicate the distance interval corresponding to adjacent sampling points of the channel impulse response. This distance interval can be used to determine the time interval between adjacent sampling points of the channel impulse response, thereby determining the sampling frequency of the channel impulse response. 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.

[0320] In this way, the first device can accurately determine the time interval between adjacent sampling points of the channel impulse response based on the sampling frequency of the channel impulse response indicated by the first information, thereby accurately determining the time information of at least one sampling point based on the first information.

[0321] In other possible approaches, the time interval between adjacent sampling points of the channel impulse response can be determined by the first device, and the method of determination is not limited; or it can be preset, such as as specified by the protocol. In this way, the first device can accurately determine the time interval between adjacent sampling points of the channel impulse response, thereby accurately determining the time information of at least one sampling point based on the first information.

[0322] In some possible approaches, the second information may include: time information corresponding to a reference sampling point corresponding to at least one sampling point, and at least one of the following: an index of each sampling point in at least one sampling point; a fourth bitmap indicating whether to feed back the sensing measurement result corresponding to the sampling point in at least one sampling window; or, a fifth bitmap indicating whether to feed back the sensing measurement result corresponding to each of one or more groups of sampling points in at least one sampling window. These will be explained in detail below.

[0323] 1. Time information corresponding to at least one reference sampling point:

[0324] For details regarding the reference sampling point, please refer to the description of the reference sampling point in method b1, which will not be repeated here.

[0325] For example, the time information corresponding to the reference sampling point can be the timestamp corresponding to the reference sampling point.

[0326] 2. The index of each sampling point in the at least one sampling point:

[0327] For example, if the second information includes the indices of the sampling points 12, 15, 18 and 20, it means that the at least one sampling point includes the sampling point with indices 12, 15, 18 and 20.

[0328] Optionally, when the second information includes time information corresponding to a reference sampling point corresponding to at least one sampling point, and the index of each sampling point among the at least one sampling point, the second device can determine the time information corresponding to the at least one sampling point based on the time information corresponding to the reference sampling point and the index of each sampling point among 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 indices of the at least one sampling point are 12, 15, 18, and 20 respectively, then the time information corresponding to the at least one sampling point are 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.

[0329] 3. Fourth bit diagram:

[0330] The specific content of the fourth bit map can be found in the description of the first bit map in method b2, except that the first bit map is replaced with the fourth bit map, the first device is replaced with the second device, and the first information is replaced with the second information, which will not be repeated here.

[0331] Optionally, if the second information includes time information corresponding to a reference sampling point corresponding to at least one sampling point and a fourth bitmap, the second device may determine the at least one sampling window based on 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 at least one sampling point based on the at least one sampling window and the fourth bitmap.

[0332] The specific details regarding "the size of each sampling window in at least one sampling window" can be found in the explanation of "the size of the second sampling window" in method a1, or in the explanation of "the size of the first sampling window" in method a2. Similarly, the specific details regarding "the offset of the starting position of each sampling window in at least one sampling window relative to the reference sampling point" can be found in the explanation of "the offset of the starting position of the second sampling window relative to the reference sampling point" in method a1, or in the explanation of "the offset of the starting position of the first sampling window relative to the reference sampling point" in method a2, and will not be repeated here. The specific details regarding "the second device determining at least one sampling point based on the at least one sampling window and the fourth bitmap" can be found in the explanation of "determining at least one sampling point based on at least one sampling window and the first bitmap" in method b2, except that the first device is replaced by the second device and the first bitmap is replaced by the fourth bitmap, and will not be repeated here.

[0333] In this way, the second device can accurately determine the at least one sampling point, thereby accurately determining the time information corresponding to the at least one sampling point.

[0334] 4. Fifth bit diagram:

[0335] The specific content of the fifth bit map can be found in the description of the second bit map in method b4, except that the second bit map is replaced with the fifth bit map, the first device is replaced with the second device, and the first information is replaced with the second information, which will not be repeated here.

[0336] Optionally, if the fifth bitmap indicates the sensing measurement result corresponding to the second set of sampling points in one or more sets of sampling points, the second information also includes a sixth bitmap. The sixth bitmap indicates whether to feed back the sensing measurement result corresponding to each sampling point in the second set of sampling points. The specific content of the sixth bitmap can be referred to the description of the third bitmap in method b4, except that the third bitmap is replaced by the sixth bitmap, the second bitmap is replaced by the fifth bitmap, the first set of sampling points is replaced by the second set of sampling points, the first device is replaced by the second device, and the first information is replaced by the second information. Further details are omitted here.

[0337] In some implementations, when the second information includes time information corresponding to a reference sampling point corresponding to at least one sampling point and a fifth bitmap, the second device can determine the at least one sampling window based on 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 at least one sampling point based on the at least one sampling window and the fifth bitmap.

[0338] The specific details regarding "the size of each sampling window in at least one sampling window" can be found in the explanation of "the size of the second sampling window" in method a1, or in the explanation of "the size of the first sampling window" in method a2. Similarly, the specific details regarding "the offset of the starting position of each sampling window in at least one sampling window relative to the reference sampling point" can be found in the explanation of "the offset of the starting position of the second sampling window relative to the reference sampling point" in method a1, or in the explanation of "the offset of the starting position of the first sampling window relative to the reference sampling point" in method a2, and will not be repeated here. The specific details regarding "the second device determining at least one sampling point based on the at least one sampling window and the fifth bitmap" can be found in the explanation of "determining at least one sampling point based on at least one sampling window and the second bitmap" in method b4, except that the first device is replaced by the second device and the second bitmap is replaced by the fifth bitmap, and will not be repeated here.

[0339] Optionally, when the second information indicates the sixth bitmap, the second device can determine at least one sampling point based on the at least one sampling window, the fifth bitmap, and the sixth bitmap. For details, please refer to the description in method b4 of "the first device can determine at least one sampling point based on at least one sampling window, the second bitmap, and the third bitmap", 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.

[0340] In this way, the second device can accurately determine the at least one sampling point, thereby accurately determining the time information corresponding to the at least one sampling point.

[0341] In some possible implementations, the second information also indicates the sampling frequency of the channel impulse response. For details, please refer to the above explanation of "the first information also indicates the sampling frequency of the channel impulse response," except that the first information is replaced with the second information, and will not be repeated here. In this manner, the second device can accurately determine the time interval between adjacent sampling points of the channel impulse response based on the sampling frequency of the channel impulse response indicated by the second information, thereby accurately determining the time information of at least one sampling point.

[0342] In other possible approaches, the time interval between adjacent sampling points of the channel impulse response can be determined by the second device, and the method of determination is not limited; or it can be preset, such as as specified by the protocol. In this way, the second device can accurately determine the time interval between adjacent sampling points of the channel impulse response, thereby accurately determining the time information of at least one sampling point.

[0343] Figure 8A , Figures 9 to 10 The methods shown are respectively Figure 5 A possible example of the method shown.

[0344] exist Figure 8A In the method shown, the terminal and TRP (including the serving TRP and / or neighboring TRPs) can perform... Figure 5 The operation of the first device in the method shown can be performed by the sensing and management network element. Figure 5 The operation of the second device in the method shown. In this method, the sensing management network element can locate sensing targets in one or more regions of interest using the Multi-RTT positioning method.

[0345] exist Figure 9 In the method shown, the TRP (including the serving TRP and / or neighboring TRPs) can perform... Figure 5 The operation of the first device in the method shown can be performed by the sensing and management network element. Figure 5 The operation of the second device in the method shown is described in which the sensing management network element can locate a sensing target in one or more regions of interest using the UL-TDOA positioning method.

[0346] exist Figure 10 In the method shown, the terminal can execute Figure 5 The operation of the first device in the method shown can be performed by the sensing and management network element. Figure 5 The operation of the second device in the method shown is described in which the sensing management network element can locate a sensing target in one or more regions of interest using the DL-TDOA positioning method.

[0347] Optional, Figure 8A , Figures 9 to 10 In the method shown, the TRP can be replaced by other access network devices, such as gNB; and / or, the uplink sensing signal is, for example, uplink SRS (UL-SRS) or SRS; and / or, the downlink sensing signal is, for example, downlink PRS (DL-PRS) or PRS.

[0348] Optional, Figure 8A , Figures 9 to 10 In the method shown, the number of terminals can be one or more, and each terminal can execute... Figures 10 to 12 The terminal operation in the method shown.

[0349] like Figure 8A As shown, the method includes:

[0350] S801: The perception management network element and multiple TRPs exchange TRP information.

[0351] These multiple TRPs may include the terminal's serving TRP and neighboring TRPs.

[0352] Optionally, TRP information exchange can be NR Positioning Protocol A (NRPPa) TRP information exchange.

[0353] S802: Capability transfer between sensing management network elements and terminals.

[0354] Optionally, the sensing and management network element can acquire the terminal's capability information through capability transmission. This terminal's capability information may include the terminal's positioning capability information.

[0355] Optionally, the capability transmission can be LTE positioning protocol (LPP) capability transmission.

[0356] The order of S801 and S802 is not limited in this application.

[0357] S803: The sensing management network element sends a sensing information request message to the service TRP.

[0358] This perception information request message is used to request the acquisition of uplink information from the terminal.

[0359] This perception information request message may also have other names, such as location information request message, without restriction.

[0360] S804: The serving TRP determines the resources to be used for transmitting uplink sensing signals.

[0361] S805: The serving TRP sends resource configuration information to the terminal, which can configure resources used for transmitting uplink sensing signals.

[0362] Optionally, the resource configuration information can be an RRC message.

[0363] S806: The service TRP sends a sensing information response message to the sensing management network element.

[0364] The sensing information response message may indicate the resource configuration information; or, the sensing information response message may provide uplink sensing signal configuration information.

[0365] The perception information response message may also have other names, such as location information response message, etc., without restriction.

[0366] S807: For semi-static uplink sensing signals or aperiodic uplink sensing signals, the sensing management network element can send a sensing activation request message to the serving TRP.

[0367] This sensing activation request message is used to request the activation of the terminal's uplink sensing signal transmission. For example, it can be used to request the activation of the UE's SRS transmission.

[0368] The perception activation request message may also have other names, such as location activation request message, NRPPa perception activation request message, or NRPPa location activation request message, etc., without restriction.

[0369] S808: Uplink sensing signal transmission for the service TRP-activated terminal.

[0370] For example, the serving TRP may send a message (e.g., MAC CE or DCI) to the terminal to activate the terminal's uplink sensing signal transmission.

[0371] After the service TRP activates the uplink sensing signal transmission of the terminal, the terminal transmits the uplink sensing signal according to the resource configuration information configured by the resource.

[0372] S809: The service TRP sends a sensing activation response message to the sensing management network element.

[0373] The sensing activation response message may also have other names, such as location activation response message, NRPPa sensing activation response message, or NRPPa location activation response message, etc., without restriction.

[0374] S810: The perception management network element sends a measurement request message to the selected TRP.

[0375] The selected TRP may include a serving TRP and neighboring TRPs; or, the selected TRP may include multiple neighboring TRPs. The selected TRP may be three or more TRPs.

[0376] The measurement request message can include all the information needed to perform the measurement for the selected TRP.

[0377] Optionally, the measurement request message may include first information from S501, which can be used to determine at least one sampling point, which may be associated with one or more regions of interest. The specific content of the first information can be found in [reference needed]. Figure 5The explanation of the first information in the method shown will not be repeated here.

[0378] For example, a measurement request message may be as shown in Table 1.

[0379] Table 1

[0380]

[0381] The first information may include one or more of the following: CIR reference path type, CIR window size, CIR window offset, sampling time interval, bitmap pattern, and CIR threshold. The bitmap pattern may be the first bitmap in the first information, or it may be the second bitmap in the first information, or it may include both the second and third bitmaps in the first information. The CIR threshold may be the first threshold in the first information. For the specific details of the first bitmap, second bitmap, third bitmap, and first threshold, please refer to [the relevant documentation / reference]. Figure 5 The explanations of the first bitmap, second bitmap, third bitmap, and first threshold in the method shown will not be repeated.

[0382] It should be understood that Table 1 is merely an example, and any reasonable modification, supplementation, or deletion of the content in Table 1 to obtain new table content falls within the scope of protection of this application. It should also be understood that Table 1 uses UL-SRS as an example of an uplink sensing signal, but other sensing signals are also possible and not limited thereto.

[0383] Measurement request messages may have other names, such as NRPPa measurement request message, without restriction.

[0384] S811: The perception management network element sends a message to the terminal to provide assistance data.

[0385] The auxiliary data message may include auxiliary data for the terminal to perform downlink sensing signal measurements.

[0386] The auxiliary data message may have other names, such as LPP auxiliary data message, without restriction.

[0387] S812: The sensing management network element sends a request sensing information message to the terminal.

[0388] This request-aware-information message can be used to request a Multi-RTT measurement.

[0389] Optionally, the request for sensing information message may include first information from S501, which can be used to determine at least one sampling point, which may be associated with one or more regions of interest. The specific content of the first information can be found in [reference needed]. Figure 5 The explanation of the first information in the method shown will not be repeated here.

[0390] For example, the request-aware-information message may be as shown in Table 2.

[0391] Table 2

[0392]

[0393] The first information may include one or more of the following: CIR reference path type, CIR window size, CIR window offset, sampling time interval, bitmap pattern, and CIR threshold. The bitmap pattern may be the first bitmap in the first information, or it may be the second bitmap in the first information, or it may include both the second and third bitmaps in the first information. The CIR threshold may be the first threshold in the first information. For the specific details of the first bitmap, second bitmap, third bitmap, and first threshold, please refer to [the relevant documentation / reference]. Figure 5 The explanations of the first bitmap, second bitmap, third bitmap, and first threshold in the method shown will not be repeated.

[0394] It should be understood that Table 2 is merely an example, and any reasonable modification, supplementation, or deletion of the content in Table 2 to obtain new table content falls within the scope of protection of this application. It should also be understood that Table 2 uses DL-PRS as an example for illustrating the downlink sensing signal; however, other sensing signals are also possible and are not limited thereto.

[0395] The request for perception information message may have other names, such as LPP request for perception information message, request for location information message, LPP request for location information message, without restriction.

[0396] S813: The terminal measures the downlink sensing signal from the selected TRP.

[0397] S814: The terminal sends a message to the sensing management network element to provide sensing information.

[0398] The message providing sensing information may include the second information in S502, which indicates the sensing measurement result corresponding to at least one sampling point. The sensing measurement result corresponding to the at least one sampling point may be obtained by the terminal measuring the downlink sensing signal from the selected TRP at that at least one sampling point. The specific content of the second information can be found in [reference needed]. Figure 5 The explanation of the second information in the method shown will not be repeated here.

[0399] For example, the message providing perception information may be as shown in Table 3.

[0400] Table 3

[0401]

[0402] The second information may include one or more of the timestamp of the reference path, the CIR list, and the bitmap pattern. The bitmap pattern may be the fourth bitmap in the second information, or it may be the fifth bitmap in the second information, or it may include both the fifth and sixth bitmaps in the second information. The threshold may be the first threshold in the first information. For the specific contents of the fourth bitmap, fifth bitmap, sixth bitmap, and first threshold, please refer to [the relevant documentation / reference]. Figure 5 The explanations of the fourth bitmap, fifth bitmap, sixth bitmap, and first threshold in the method shown will not be repeated.

[0403] Optionally, in Table 3, the CIR list may include: sample point index, I component, and Q component; or, the CIR list may include: sample point index, amplitude, and phase.

[0404] It should be understood that Table 3 is merely an example, and any new table content obtained by reasonably modifying, supplementing, or deleting the content in Table 3 shall fall within the scope of protection of this application.

[0405] The message providing sensing information may have other names, such as LPP providing sensing information message, providing location information message, LPP providing location information message, without restriction.

[0406] S815: The selected TRP measures the uplink sensing signal from the terminal.

[0407] S816: The selected TRP sends a measurement response message to the sensing management network element.

[0408] The measurement response message may include the second information in S502, which indicates the sensing measurement result corresponding to at least one sampling point. The sensing measurement result corresponding to the at least one sampling point may be obtained by the selected TRP measuring the uplink sensing signal from the terminal at that at least one sampling point. The specific content of the second information can be found in [reference needed]. Figure 5 The explanation of the second information in the method shown will not be repeated here.

[0409] For example, the measurement response message may be as shown in Table 4.

[0410] Table 4

[0411]

[0412] The second information may include one or more of the timestamp of the reference path, the CIR list, and the bitmap pattern. The bitmap pattern may be the fourth bitmap in the second information, or it may be the fifth bitmap in the second information, or it may include both the fifth and sixth bitmaps in the second information. The threshold may be the first threshold in the first information. For the specific contents of the fourth bitmap, fifth bitmap, sixth bitmap, and first threshold, please refer to [the relevant documentation / reference]. Figure 5 The explanations of the fourth bitmap, fifth bitmap, sixth bitmap, and first threshold in the method shown will not be repeated.

[0413] Optionally, in Table 4, the CIR list may include: sample point index, I component, and Q component; or, the CIR list may include: sample point index, amplitude, and phase.

[0414] It should be understood that Table 4 is merely an example, and any new table content obtained by reasonable modification, supplementation, or deletion of the content in Table 4 shall fall within the scope of protection of this application.

[0415] This measurement response message may have other names, such as NRPPa measurement response message, without restriction.

[0416] The order of S813-S814 and S815-S816 is not limited in this application.

[0417] S817: The sensing management network element sends a sensing deactivation message to the service TRP.

[0418] This sensing deactivation request message is used to request the deactivation of the terminal's uplink sensing signal transmission. For example, it can be used to request the deactivation of the UE SRS transmission.

[0419] Optionally, the awareness deactivation message can be a MAC CE.

[0420] S818: The perception management network element determines the perception result.

[0421] For example, the sensing management network element can determine the RTT of multiple reflector paths corresponding to the sensed target in the region of interest based on the sensing measurement results received in S814 and S816. For details, please refer to the explanation of the Multi-RTT localization method in the terminology section, which will not be repeated here. The sensing management network element can determine the position of the sensed target in the region of interest based on multiple RTTs, as illustrated below.

[0422] In the example below, multiple TRPs include TRP1 to TRP3. The distance from the terminal to the sensing target is R0, the distance from the sensing target to TRP1 is R4, the distance from the sensing target to TRP2 is R5, and the distance from the sensing target to TRP3 is R6. The sensing management network element can determine, based on the sensing measurement results received in S814 and S816, that the distance from the terminal to TRP1 via the sensing target is R0+R4, the distance from the terminal to TRP2 via the sensing target is R0+R5, and the distance from the terminal to TRP3 via the sensing target is R0+R6.

[0423] For example, such as Figure 8B As shown in (1), the sensing management network element can determine that the distance difference between the sensing target and TRP1 and the sensing target and TRP2 is R54 = R5 - R4 = (R0 + R5) - (R0 + R4); and the distance difference between the sensing target and TRP1 and the sensing target and TRP3 is R64 = R6 - R4 = (R0 + R6) - (R0 + R4). Therefore, the sensing target is located on both hyperbola 3, which has TRP1 and TRP2 as foci and a constant distance difference of R54 between it and the two foci, and hyperbola 4, which has TRP1 and TRP3 as foci and a constant distance difference of R64 between it and the two foci. That is, the sensing target is located at the intersection of hyperbola 3 and hyperbola 4. The sensing management network element can determine the position of the sensing target based on the positions from TRP1 to TRP3, and hyperbola 3 and hyperbola 4.

[0424] For example, such as Figure 8B As shown in (2), the sensing target is located at the intersection of ellipsoids 1, 2, and 3. The sum of the distances from each point on ellipsoid 1 to TRP1 and the terminal is R0 + R4; the sum of the distances from each point on ellipsoid 1 to TRP2 and the terminal is R0 + R5; and the sum of the distances from each point on ellipsoid 1 to TRP3 and the terminal is R0 + R6. The sensing management network element can determine the location of the sensing target based on the positions of TRP1 to TRP3 and ellipsoids 1 to 3.

[0425] Optionally, in the above example, the terminal can be replaced by a TRP, and the TRP can be replaced by a terminal. The sensing management network element can determine the location of the sensing target based on the locations of multiple terminals.

[0426] Optional, Figure 8A In the method shown, steps S801 to S809, S811, S813, S815, and S817 to S818 are optional. The order of S810 to S812 is not limited; the order of S817 and S818 is not limited.

[0427] pass Figure 8AThe method shown allows the sensing management network element to locate sensing targets in one or more regions of interest using the Multi-RTT positioning method.

[0428] like Figure 9 As shown, the method includes:

[0429] S901: The perception management network element and multiple TRPs exchange TRP information.

[0430] S902: Capability transfer between sensing management network elements and terminals.

[0431] S903: The sensing management network element sends a sensing information request message to the serving TRP.

[0432] S904: The serving TRP determines the resources used to transmit uplink sensing signals.

[0433] S905: The serving TRP sends resource configuration information to the terminal, which can configure resources used for transmitting uplink sensing signals.

[0434] S906: The serving TRP sends a sensing information response message to the sensing management network element.

[0435] S907: For semi-static uplink sensing signals or aperiodic uplink sensing signals, the sensing management network element can send a sensing activation request message to the serving TRP.

[0436] S908: Uplink sensing signal transmission for service TRP-activated terminal.

[0437] S909: The service TRP sends a sensing activation response message to the sensing management network element.

[0438] For details on S901 to S909, please refer to S801 to S809, which will not be repeated here.

[0439] S910: The terminal sends an uplink sensing signal; correspondingly, multiple TRPs can receive the echo signal of the uplink sensing signal.

[0440] For example, in S901, the terminal can send an uplink sensing signal (such as...). Figure 9As shown in S910a); the uplink sensing signal first reaches the sensing target via wireless transmission, and then, after being acted upon by the sensing target (e.g., reflection, scattering, or diffraction), reaches each of the multiple TRPs, meaning that the multiple TRPs can receive the uplink sensing signal (e.g., as shown in S910a); Figure 9 (As shown in S910b in the figure). That is, S901 may 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, only one is shown in the figure.

[0441] S911: The perception management network element sends measurement request messages to multiple TRPs.

[0442] For details on S911, please refer to S810, except that the selected TRP is replaced with multiple TRPs, which will not be repeated here.

[0443] S912: The multiple TRPs measure the uplink sensing signals from the terminal.

[0444] S913: The multiple TRPs send measurement response messages to the sensing management network element.

[0445] For details on S912 to S913, please refer to S815 to S816, except that the selected TRP is replaced with multiple TRPs, which will not be repeated here.

[0446] S914: The sensing management network element sends a sensing deactivation message to the service TRP.

[0447] For details on S914, please refer to S817; further details will not be provided here.

[0448] S915: The perception management network element determines the perception result.

[0449] For example, the sensing management network element can determine the reception time of multiple reflection paths corresponding to the sensing target in the region of interest based on the sensing measurement results received in S913, thereby determining the position of the sensing target in the region of interest based on the multiple reception times. For details, please refer to the explanation of the UL-TDOA positioning method in the terminology section, which will not be repeated here.

[0450] Optional, Figure 9 In the method shown, steps S901 to S910, S912, and S914 to S915 are optional. The order of S914 and S915 is not limited.

[0451] pass Figure 9The method shown allows the sensing management network element to locate sensing targets in one or more regions of interest using the UL-TDOA positioning method.

[0452] like Figure 10 As shown, the method includes:

[0453] S1001: The perception management network element and multiple TRPs exchange TRP information.

[0454] S1002: Capability transfer between sensing management network elements and terminals.

[0455] For details on S1001 to S1002, please refer to S801 to S802, which will not be repeated here.

[0456] S1003: The terminal sends a request assistance data message to the sensing management network element.

[0457] This request for auxiliary data message can request auxiliary data for the terminal to perform downlink sensing signal measurements.

[0458] The request for auxiliary data message may have other names, such as LPP request for auxiliary data message, without restriction.

[0459] S1004: The perception management network element sends a message to the terminal to provide assistance data.

[0460] For details of S1004, please refer to S811, and will not be repeated here.

[0461] S1005: The sensing management network element can send a sensing activation request message to the service TRP.

[0462] Optionally, the sensing activation request message may request activation of sensing of downlink sensing signals.

[0463] The perception activation request message may also have other names, such as location activation request message, NRPPa perception activation request message, or NRPPa location activation request message, etc., without restriction.

[0464] S1006: The service TRP can send a sense activation request message to the terminal.

[0465] S1007: The terminal sends a sensing activation response message to the serving TRP.

[0466] The sensing activation response message may also have other names, such as location activation response message, NRPPa sensing activation response message, or NRPPa location activation response message, etc., without restriction.

[0467] S1008: The service TRP sends a sensing activation response message to the sensing management network element.

[0468] S1009: Multiple TRPs send downlink sensing signals respectively; correspondingly, the terminal receives downlink sensing signals from multiple TRPs.

[0469] For example, in S1009, each of the multiple TRPs can send a downlink sensing signal (such as...). Figure 10 As shown in S1009a); the downlink sensing signal first reaches the sensing target via wireless transmission, and then reaches the terminal after being affected by the sensing target (e.g., reflection, scattering, or diffraction), that is, the terminal can receive the downlink sensing signal (e.g., as ... Figure 10 (As shown in S1009b). 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; only one is shown in the figure.

[0470] S1010: The sensing management network element sends a request sensing information message to the terminal.

[0471] The Request for Sensing Information message can be used to request sensing measurement results.

[0472] Optionally, the request for sensing information message may include first information from S501, which can be used to determine at least one sampling point, which may be associated with one or more regions of interest. The specific content of the first information can be found in [reference needed]. Figure 5 The explanation of the first information in the method shown will not be repeated here.

[0473] For example, the request-aware-information message can be the request-aware-information ...-S812.

[0474] S1011: The terminal measures downlink sensing signals from multiple TRPs.

[0475] S1012: The terminal sends a message to the sensing management network element to provide sensing information.

[0476] Optionally, the sensing information message may include the second information in S502, which indicates the sensing measurement result corresponding to at least one sampling point. The sensing measurement result corresponding to the at least one sampling point may be obtained by the terminal measuring downlink sensing signals from multiple TRPs at that at least one sampling point. The specific content of the second information can be found in [reference needed]. Figure 5 The explanation of the second information in the method shown will not be repeated here.

[0477] For example, the providing perception information message may be the providing perception information message in S814.

[0478] S1013: The sensing management network element sends a sensing deactivation message to the service TRP.

[0479] Optionally, the sensing deactivation request message can request the deactivation of sensing measurements of downlink sensing signals.

[0480] The sensing deactivation request message may also have other names, such as location deactivation request message, NRPPa sensing deactivation request message, or NRPPa location deactivation request message, etc., without restriction.

[0481] S1014: The service TRP sends a sense deactivation message to the terminal.

[0482] S1015: The perception management network element determines the perception result.

[0483] For example, the sensing management network element can determine the reception time of multiple reflection paths corresponding to the sensing target in the region of interest based on the sensing measurement results received in S1012, thereby determining the position of the sensing target in the region of interest based on the multiple reception times. For details, please refer to the explanation of the DL-TDOA positioning method in the terminology section, which will not be repeated here.

[0484] Optional, Figure 10 In the method shown, steps S1001 to S1009, S1011, and S1013 to S1015 are optional. The order of any step in S1013 and S1014 and step S1015 is not limited.

[0485] pass Figure 10 As shown in the method, the sensing management network element can locate sensing targets in one or more regions of interest according to the DL-TDOA positioning method.

[0486] Based on the same technical concept as the above-described method embodiments, this application provides a corresponding communication device that can be used to perform the functions of the relevant steps in the above-described method embodiments. This function can be implemented in hardware, 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 access network device, or a device within the terminal or access network device (e.g., a module, communication module, circuit or chip responsible for communication and / or sensing functions (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the terminal or functions.

[0487] In one possible implementation, the communication device provided in this application embodiment has the following structure: Figure 11 As shown, the communication device includes a processing unit 1102. Optionally, the communication device may also include an interface unit 1101. The functions of each unit in the communication device 1100 are described below.

[0488] Interface unit 1101 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, interface unit 1101 can output information to other devices outside of communication device 1100, or to other units within communication device 1100. In some embodiments, interface unit 1101 can be implemented using at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other embodiments, interface unit 1101 can be implemented using an interface circuit, such as a mobile communication module. The mobile communication module may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, a low-noise amplifier (LNA), etc. Interface unit 1101 is used to perform the receiving and transmitting operations in the above method embodiments.

[0489] In this application, the interface unit 1101 may also have other names, such as a transceiver unit or a communication unit. Optionally, the interface unit 1101 may include a receiving unit and a sending unit, used for inputting information and outputting information, respectively. The receiving unit is used to perform the receiving operation in the above method embodiments. The sending unit is used to perform the sending operation in the above method embodiments.

[0490] The processing unit 1102 can be used to support the communication device 1100 in performing 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), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microprocessors (MCUs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor. The processing unit 1102 is used to perform processing-related operations in the above method embodiments, for example, to instruct operations other than receiving and sending operations in the above method embodiments.

[0491] In one embodiment, the communication device 1100 is applied to Figure 5 The first device in this embodiment of the application is shown. The specific functions of the processing unit 1102 in this embodiment will be described below.

[0492] The processing unit 1102 is configured to: receive first information through the interface unit 1101, 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 unit 1101, the second information indicating the sensing measurement result corresponding to the at least one sampling point.

[0493] In another embodiment, the communication device 1100 is applied to Figure 5 The second device in this embodiment of the application is shown. The specific functions of the processing unit 1102 in this embodiment will be described below.

[0494] The processing unit 1102 is configured to: send first information through the interface unit 1101, 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 receive second information through the interface unit 1101, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

[0495] In one possible design, when the communication device 1100 is a communication equipment or a communication module within a communication equipment, the functionality of the processing unit 1102 can be implemented by one or more processors. For example, the processor may include a modem chip, or a system-on-a-chip (SoC) or SIP chip containing a modem core. The functionality of the interface unit 1101 can be implemented by transceiver circuitry.

[0496] In one possible design, when the communication device 1100 is a circuit or chip in a communication device responsible for communication and / or sensing functions, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing unit 1102 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the interface unit 1101 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0497] The communication device can be a terminal or an access network device.

[0498] For a more detailed description of the processing unit 1102 and the interface unit 1101 mentioned above, please refer to [link / reference]. Figures 5 to 10 The relevant descriptions in the method embodiments shown are directly obtained and will not be repeated here.

[0499] It should be noted that the module division in the above embodiments of this application is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, exist as separate physical units, or have two or more units integrated into one unit. The integrated units can be implemented in hardware, as software functional units, or in a combination of hardware and software. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0500] For example, the functional unit in any of the above devices may 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.

[0501] If the integrated units described above are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0502] In one possible implementation, the communication device provided in the embodiments of this application is described below. Figure 12 As shown, the communication device 1200 includes a processor 1202. Optionally, the communication device 1200 may also include an interface circuit 1201 and a memory 1203. The interface circuit 1201, the processor 1202, and the memory 1203 are coupled to each other.

[0503] Optionally, the interface circuit 1201, processor 1202, and memory 1203 are coupled to each other via bus 1204. 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 address bus, data bus, control bus, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0504] Interface circuit 1201 is used for inputting and / or outputting information. Input information can be replaced with received information, and output information can be replaced with transmitted information. When outputting information, interface circuit 1201 can output information to other devices outside of communication device 1200, or to other units within communication device 1200. For example, interface circuit 1201 can be implemented through 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 may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, an LNA, etc. Interface circuit 1201 is used to perform the receiving and transmitting operations in the above method embodiments.

[0505] Interface circuit 1201 may be one of the following: a transceiver, a transceiver circuit, a communication circuit, an interface, a communication interface, or an input / output interface (e.g., a chip's input / output interface). Interface circuit 1201 may include an input interface circuit and an output interface circuit, used for inputting information and outputting information, respectively. The input interface circuit is used to perform the receiving operation in the above method embodiments. The output interface circuit is used to perform the transmitting operation in the above method embodiments.

[0506] The transceiver can be used for communication with other communication devices. For example, if communication device 1200 is a terminal, the transceiver can be used to communicate with access network equipment or with another terminal. As another example, if communication device 1200 is an access network device, the transceiver can be used to communicate with a terminal or with another access network device.

[0507] Optionally, the transceiver may include a receiver and a transmitter. The receiver is used to perform the receiving operation in the above method embodiments. The transmitter is used to perform the sending operation in the above method embodiments.

[0508] Optionally, the transceiver can be integrated with the processor 1202 or exist independently and be coupled to the processor 1202 through the interface circuit of the communication device 1200. This application embodiment does not specifically limit this.

[0509] Processor 1202 can be used to support communication device 1200 in performing the processing actions in the above method embodiments. When communication device 1200 is used to implement the above method embodiments, processor 1202 can also be used to implement the functions of processing unit 1102. Processor 1202 can be a CPU, or other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. General-purpose processors can be microprocessors or any conventional processor. Processor 1202 is used to perform processing-related operations in the above method embodiments, for example, to instruct operations other than receiving and sending operations in the above method embodiments.

[0510] In one embodiment, the communication device 1200 is applied to Figure 5 The first device in this embodiment of the application is shown. The specific functions of the processor 1202 in this embodiment are described below.

[0511] The processor 1202 is configured to: receive first information via 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 via interface circuit 1201, the second information indicating the sensing measurement result corresponding to the at least one sampling point.

[0512] In another embodiment, the communication device 1200 is applied to Figure 5 The second device in this embodiment of the application is shown below. The specific functions of the processor 1202 in this embodiment are described below.

[0513] The processor 1202 is configured to: send first information via 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 receive second information via interface circuit 1201, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

[0514] The specific functions of processor 1202 can be found in the descriptions of the communication methods provided in the embodiments and examples of this application above. Figure 11 The specific functional description of the communication device 1100 in the embodiments of this application is shown below and will not be repeated here.

[0515] Memory 1203 is used to store program instructions and / or data. Specifically, program instructions may include program code, which includes computer operation instructions. Memory 1203 may include RAM and may also include non-volatile memory, such as at least one disk storage device. Processor 1202 executes the program instructions stored in memory 1203 and uses the data stored in memory 1203 to implement the above-mentioned functions, thereby realizing the communication method provided in the embodiments of this application. Memory 1203 may be integrated with processor 1202 or may be a memory outside the communication device.

[0516] It is understood that this application Figure 12The memory 1203 can be volatile memory or non-volatile memory, or may include both. The non-volatile memory can be ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be RAM, which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0517] Based on the above embodiments, this application also provides a computer program product including computer-executable instructions, which, when run, causes the methods provided in the above embodiments to be executed.

[0518] Based on the above embodiments, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a computer, causes the computer to perform the methods provided in the above embodiments.

[0519] The storage medium can be any available medium that a computer can access. For example, but not limited to, a computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media 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.

[0520] Based on the above embodiments, this application also provides a chip for reading a computer program stored in a memory and implementing the method provided in the above embodiments.

[0521] Based on the above embodiments, this application provides a chip system including a processor for supporting a computer device in implementing the functions involved in the devices in the above embodiments. In one possible design, the chip system further includes a memory for storing necessary programs and data of the computer device. The chip system may be composed of chips or may include chips and other discrete components.

[0522] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0523] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0524] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0525] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0526] In this application, the terms "system" and "network" are used interchangeably. "At least one item" refers to one or more items, and "more than one item" refers to two or more items. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulaic description of this application, the character " / " generally indicates a "division" relationship between the preceding and following related objects.

[0527] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0528] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method characterized by comprising: The method comprises: 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. A communication method characterized by comprising: The method comprises: 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; receiving second information, the second information indicating a sensing measurement result corresponding to the at least one sampling point.

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

4. The method according to any one of claims 1 to 3, characterized in that, 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.

5. The method of claim 4, 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 maximum value of d i is the minimum value of d is the distance between point P i and the transmitting device of the perception signal, is the distance between point P i and the receiving device of the perception signal, d ref is the distance between the transmitting device and the receiving device.

6. The method of claim 5, 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, denotes a rounding down operation, and round() denotes a rounding operation.

7. The method of claim 4, 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 , is the distance between a point P in a first region of interest and a transmitting device of a perception signal, is the distance between the point P j in the first region of interest and a 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 the distance between the transmitting device and the receiving device.

8. The method of claim 7, 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, denotes a rounding down operation, and round() denotes a rounding operation.

9. The method according to any one of claims 1 to 8, characterized in that, The first information being used to determine at least one sampling point comprises at least one of: The first information indicating at least one sampling window, the at least one sampling point comprising all sampling points in the at least one sampling window; The first information indicating 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 indicating the at least one sampling window, the at least one sampling point comprising: 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 indicating 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.

10. The method of claim 9, 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.

11. The method of claim 9 or 10, wherein, The first information indicating the at least one sampling window comprises: The first information indicating at least one of: 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.

12. The method of claim 11, wherein, The first information further indicating a type of the reference sampling point, the type of the reference sampling point comprising at least one of: 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.

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

14. The method of any one of claims 1 to 13, 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 indicating whether to feed back a perception measurement result corresponding to a sampling point in at least one sampling window; or a 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.

15. The method of claim 14, 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 indicating whether to feed back a perception measurement result corresponding to each sampling point in the second group of sampling points.

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

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

18. The method of claim 17, 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.

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

20. A communications device, characterized by The apparatus comprises units for performing the method according to any one of claims 1-19.

21. A communications device, characterized by The apparatus comprises a processor configured to execute computer programs or instructions, so that the apparatus performs the method according to any one of claims 1-19.

22. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer programs or instructions, when the computer programs or instructions are executed, the method according to any one of claims 1-19 is implemented.

23. A computer program product, characterised in that, The computer program product comprises computer program code, when the computer program code is run, the method according to any one of claims 1-19 is implemented.

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