Communication method and apparatus

Abstract

The application relates to a communication method and device, and relates to the technical field of communication. In the method, a new measurement quantity and a measurement event are defined for a sensing scene. Specifically, a center node configures a first sensing node with a measurement event related to sensing distance measurement, so that the first sensing node reports a sensing measurement result when the first sensing node performs sensing measurement and determines that a trigger condition of the measurement event is met, to assist the center node in making a reasonable sensing decision, thereby improving the sensing decision accuracy.

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] Terminal movement causes dynamic changes in channel conditions and / or communication quality. By measuring these dynamic changes, terminals can assist the network in making communication-related decisions, such as mobility management, access control, and resource allocation. The main measurement process includes measurement configuration, measurement execution, and measurement reporting. The current 3rd Generation Partnership Project (3GPP) defines various measurement quantities and events; however, these are defined for communication scenarios and are not applicable to sensing scenarios. Summary of the Invention

[0003] This application provides a communication method and apparatus that helps improve the accuracy of perception and decision-making.

[0004] The present application is described below from different aspects. It should be understood that the different implementation methods and beneficial effects described below can be referenced from each other.

[0005] Firstly, this application provides a communication method that can be applied to a first sensing node. For example, the first sensing node can be a terminal, or a component within the terminal (e.g., a processor, chip, chip system, circuit, or functional module), such as a communication module / processing module within the terminal, or a circuit or chip within the terminal responsible for communication and / or sensing functions (e.g., 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), or a circuit or chip within the terminal responsible for processing functions (e.g., a graphics processing unit (GPU), an artificial intelligence (AI) processor, or an application-specific integrated circuit (ASIC), or a sensing function processor). The following description uses a first sensing node as an example, and this application does not limit the scope of the method. In this method, the first sensing node receives a sensing measurement configuration that indicates information about the sensing target and sensing measurement events associated with the sensing target. The first sensing node acquires the sensing distances between the target and both the first and second sensing nodes. These distances are used to determine the sensing measurement results, allowing the first sensing node to determine whether a sensing measurement event is met. Furthermore, when a sensing measurement event is met, the first sensing node can report a measurement report, which assists the central node in making sensing decisions.

[0006] In this application embodiment, new measurement quantities and measurement events are defined for the perception scenario. Specifically, the central node configures measurement events related to perception distance measurement for the first perception node. When the first perception node performs perception measurement and determines that the triggering conditions of the measurement event are met, it reports the perception measurement results, thereby assisting the central node in making reasonable perception decisions. This helps improve the accuracy of perception decisions. For example, perception decisions include perception-oriented mobility management and perception resource allocation. By adopting the solution provided in this application to perform perception mobility management and perception resource allocation decisions, it is beneficial to improve perception performance and resource utilization.

[0007] In one possible implementation, the sensing measurement distance is used to determine the sensing measurement result, including:

[0008] The sensing measurement result is the sum of the sensing measurement distance between the sensing target and the first sensing node, and the sensing measurement distance between the sensing target and the second sensing node.

[0009] In this implementation, the sensing measurement result is the bistatic distance of the sensing target, where the bistatic distance of any sensing target is equal to the sum of the sensing measurement distance between the sensing target and the first sensing node and the sensing measurement distance between the sensing target and the second sensing node. This distance calculation method, which takes into account the transmission path of the sensing signal, is more in line with the characteristics of the sensing scenario, and thus helps to obtain effective distance sensing performance indicators, thereby improving sensing performance and resource utilization.

[0010] In one possible implementation, the sensing target includes a first sensing target and a second sensing target, and the step of determining whether the sensing measurement event is satisfied based on the sensing measurement result includes:

[0011] If the first condition is met, determine whether the entry condition for the sensing measurement event is met; or,

[0012] If the second condition is met, then the departure condition of the perceived measurement event is determined to be satisfied;

[0013] Wherein, the first condition is |d2-d1|+Hys1<Thresh1, and the duration is greater than or equal to a given duration T1; the second condition is |d2-d1|-Hys2>Thresh2, and the duration is greater than or equal to a given duration T2; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys1 is a first hysteresis value; Thresh1 is a first threshold; Hys2 is a second hysteresis value; and Thresh2 is a second threshold.

[0014] In this implementation, when the distance resolution of the sensing node is too low to distinguish the sensing target, triggering a sensing measurement event helps the central node to increase the allocation of sensing resources or switch to other sensing nodes with more resources to improve the distance resolution.

[0015] In one possible implementation, the sensing target includes a first sensing target and a second sensing target, and the step of determining whether the sensing measurement event is satisfied based on the sensing measurement result includes:

[0016] If the third condition is met, determine whether the entry condition for the sensing measurement event is met; or,

[0017] If the fourth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied;

[0018] Wherein, the third condition is |d2-d1|-Hys3>Thresh3, and the duration is greater than or equal to the given duration T3; the fourth condition is |d2-d1|+Hys4<Thresh4, and the duration is greater than or equal to the given duration T4; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys3 is the third hysteresis value; Thresh3 is the third threshold; Hys4 is the fourth hysteresis value; and Thresh4 is the fourth threshold.

[0019] In this implementation, when the distance resolution of the sensing node is too high, triggering a sensing measurement event helps the central node to reduce the allocation of sensing resources based on the event, thereby reducing resource waste.

[0020] In one possible implementation, the sensing measurement distance is used to determine the sensing measurement result, including:

[0021] The sensing measurement result is the ranging accuracy of the sensing target;

[0022] The ranging accuracy of the perceived target is related to the deviation between the perceived distance and the actual distance of the perceived target, or the ranging accuracy of the perceived target is related to the bandwidth and the signal-to-noise ratio of the perceived signal.

[0023] In this implementation, the sensing measurement result is the ranging accuracy of the sensing target, and the ranging accuracy of the sensing target is related to the measured distance and the actual distance of the sensing signal transmission path. This also fits the characteristics of the sensing scenario, which helps to obtain effective distance sensing performance indicators, thus improving sensing performance and resource utilization.

[0024] In one possible implementation, determining whether the perception measurement event is satisfied based on the perception measurement result includes:

[0025] If the fifth condition is met, then the entry condition for the sensing measurement event is determined to be met; or,

[0026] If the sixth condition is met, then the departure condition for the perceived measurement event is determined to be met;

[0027] Wherein, the fifth condition is P + Hys5 > Thresh5, and the duration is greater than or equal to the given duration T5; the sixth condition is P - Hys6 < Thresh6, and the duration is greater than or equal to the given duration T6; where P is the ranging accuracy of the perceived target, Hys5 is the fifth hysteresis value, Thresh5 is the fifth threshold, Hys6 is the sixth hysteresis value, and Thresh6 is the sixth threshold.

[0028] In this implementation, when the ranging accuracy of the sensing node is too low, triggering a sensing measurement event helps the central node to increase the allocation of sensing resources or switch to other sensing nodes with more resources to improve the ranging accuracy.

[0029] In one possible implementation, determining whether the perception measurement event is satisfied based on the perception measurement result includes:

[0030] If the seventh condition is met, then the entry condition for the sensing measurement event is determined to be satisfied; or,

[0031] If the eighth condition is met, then the departure condition for the perceived measurement event is determined to be satisfied.

[0032] Wherein, the seventh condition is P - Hys7 < Thresh7, and the duration is greater than or equal to the given duration T7; the eighth condition is P + Hys8 > Thresh8, and the duration is greater than or equal to the given duration T8; where P is the ranging accuracy of the perceived target, Hys7 is the seventh hysteresis value, Thresh7 is the seventh threshold, Hys8 is the eighth hysteresis value, and Thresh8 is the eighth threshold.

[0033] In this implementation, when the ranging accuracy of the sensing node is too high, triggering a sensing measurement event helps the central node to reduce the allocation of sensing resources based on the event, thereby reducing resource waste.

[0034] In one possible implementation, the method further includes:

[0035] If the aforementioned sensing and measurement event is met, a measurement report is sent;

[0036] The measurement report indicates the sensing measurement results and / or the comparison results of the sensing measurement results with the threshold.

[0037] In this implementation, satisfying a sensing measurement event can also be referred to as satisfying the entry condition of a sensing measurement event, or satisfying the trigger condition of a sensing measurement event, or the sensing measurement event being triggered, or the sensing measurement event being triggered. When a sensing measurement event is satisfied, the first sensing node can report a measurement report, which can be used to assist the central node in making sensing decisions, thus helping to improve the accuracy of sensing decisions.

[0038] In one possible implementation, the sensing measurement result indicates one or more of the following information:

[0039] The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target;

[0040] Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

[0041] In one possible implementation, the information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

[0042] Secondly, this application provides a communication method that can be applied to a central node. For example, the central node can be an access network device, or a component within the access network device (e.g., a processor, circuit, chip, chip system, or a functional module, such as a processor or sensing module supporting sensing functions), or a logical node, logical module, or software capable of implementing all or part of the functions of the access network device. The following description uses a central node as an example, without limiting its scope. In this method, the central node determines and sends a sensing measurement configuration, wherein the sensing measurement configuration indicates information about the sensing target and sensing measurement events associated with the sensing target; the sensing measurement event is determined to be satisfied based on the sensing measurement result, and the sensing measurement result is determined based on the sensing measurement distance, which is the sensing measurement distance between the sensing target and the first and second sensing nodes, respectively.

[0043] In one possible implementation, the method further includes: receiving a measurement report; wherein the measurement report indicates the perceived measurement result and / or a comparison result of the perceived measurement result with a threshold.

[0044] In one possible implementation, the sensing measurement result indicates one or more of the following information:

[0045] The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target;

[0046] Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

[0047] In one possible implementation, the information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

[0048] Thirdly, this application provides a communication device comprising units, modules, or means for implementing any of the methods in the first to second aspects, or any possible implementations of any of the aspects, wherein the modules, units, or means may be implemented by software, by hardware, or by a combination of software and hardware.

[0049] Fourthly, this application provides a communication device including a processor. The processor is configured to cause the communication device to implement the methods shown in any of the first to second aspects, or any possible implementation thereof.

[0050] Optionally, the communication device further includes a transceiver for sending and receiving information.

[0051] Optionally, the communication device further includes a memory storing a computer program; the processor and transceiver are used to invoke the computer program in the memory, causing the communication device to implement the method shown in any of the first or second aspects, or any possible implementation thereof.

[0052] In one possible design, the communication device may be the first sensing node in the first aspect described above, or any implementation of the first aspect, or a device containing the first sensing node, or a device contained in the first sensing node, such as a chip or chip system; or, the communication device may be the central node in the second aspect described above, or any implementation of the second aspect, or a device containing the central node, or a device contained in the central node, such as a chip or chip system.

[0053] In some possible designs, when the device is a chip system, it can be composed of chips or contain chips and other discrete components.

[0054] Fifthly, this application provides a communication device comprising one or more processors, which implement, via logic circuits or execution code instructions, any of the methods described in the first or second aspects, or any possible implementation thereof.

[0055] Optionally, the communication device further includes an interface circuit for receiving signals from other communication devices outside the communication device and transmitting them to the processor, or sending signals from the processor to other communication devices outside the communication device.

[0056] Optionally, the communication device may further include a memory for storing part or all of the computer programs or instructions necessary to implement the functions involved in the first aspect above.

[0057] The aforementioned communication device may be a first sensing node, or a communication module in the first sensing node, or a chip in the first sensing node responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module.

[0058] The aforementioned communication device may be an access network device, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network device.

[0059] It is understood that when the communication device provided by any of the third to fifth aspects is a chip, the aforementioned sending action / function can be understood as an output, and the aforementioned receiving action / function can be understood as an input.

[0060] This application also provides a communication device, specifically a chip, including a processor for calling and executing instructions stored in a memory, causing a communication device on which the chip is mounted to perform the methods described in the examples above. The memory may be integrated within the chip or located externally.

[0061] This application also provides another communication device, specifically a chip, including: an input interface, an output interface, and a processing circuit. The input interface, output interface, and processor are connected via internal interconnection paths. The processing circuit is used to execute code in a memory. When the code is executed, the processing circuit performs the methods described in the examples above. Optionally, the chip also includes a memory for storing computer programs or code. The input interface and output interface can be independent of each other, or they can be integrated into a single input / output interface.

[0062] The processing circuitry can be all or part of the processing circuitry in one or more processors, or one or more processors.

[0063] Sixthly, this application provides a computer-readable storage medium storing a computer program or instructions that, when executed by a computer, implement the method shown in any of the first to second aspects, or any possible implementation thereof.

[0064] In a seventh aspect, this application provides a computer program product that, when read and executed by a computer, causes the computer to perform any of the methods in the first aspect to the second aspect, or any possible implementation thereof.

[0065] Eighthly, this application provides a chip system including at least one processor and an interface, the processor being configured to read and execute a computer program or instructions in a memory, wherein when the computer program or instructions are executed, the chip performs the method as described in any one of the first or second aspects, or the method shown in any possible implementation of either aspect.

[0066] Ninthly, this application provides a communication system that may include a first sensing node and a central node. The first sensing node is used to perform the method shown in the first aspect or any possible implementation thereof. The central node is used to perform the method shown in the second aspect or any possible implementation thereof. Attached Figure Description

[0067] Figure 1A This is a schematic diagram of the architecture of a communication system used in an embodiment of this application;

[0068] Figure 1B This is another schematic diagram of the communication system used in the embodiments of this application;

[0069] Figure 2 This is a schematic diagram of the architecture of the O-RAN system provided in this application;

[0070] Figure 3 This is a schematic diagram of the network element function division and protocol layer structure of an O-RAN device provided in this application;

[0071] Figure 4 A schematic diagram of a perception scene provided in an embodiment of this application;

[0072] Figure 5 This is a flowchart illustrating the communication method provided in an embodiment of this application;

[0073] Figure 6 This is a schematic diagram of the bistatic distance between the sensing target and the sensing node provided in an embodiment of this application;

[0074] Figure 7 This is a schematic diagram of the structure of a possible communication device provided in the embodiments of this application;

[0075] Figure 8 This is a schematic diagram of the structure of a possible communication device provided in the embodiments of this application;

[0076] Figure 9 This is a schematic diagram of the structure of a possible communication device provided in the embodiments of this application. Detailed Implementation

[0077] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0078] In the description of this application, terms such as "first" and "second" are used only to distinguish different objects, not to describe a specific order. Furthermore, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of 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, and B alone. Additionally, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0079] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0080] In this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary," "for example," or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0081] It is understood that in this application, "when," "if," and "if" all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment when it is implemented, nor do they imply any other limitations.

[0082] In this application, the use of singular pronouns for elements is intended to indicate "one or more," rather than "one and only one," unless otherwise specified. The terms "system" and "network" in the embodiments of this application are used interchangeably.

[0083] It is understood that in the embodiments of this application, "B corresponding to A" means that there is a correspondence between A and B, and B can be determined based on A. Determining B based on A does not mean that B can be determined solely based on A; B can also be determined based on A and / or other information.

[0084] To better understand the embodiments of this application, the system architecture involved in the embodiments of this application will be described first below:

[0085] The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, and LTE Time Division Duplex (TDD) systems. The technical solutions of the embodiments of this application can also be applied to other communication systems, such as Public Land Mobile Network (PLMN) systems, LTE Advanced (LTE-A) systems, the 5th generation (5G) systems, New Radio (NR) systems, Machine-to-Machine (M2M) systems, or other future communication systems, or other wireless communication systems employing wireless access technologies, all of which can adopt the technical solutions of the embodiments of this application.

[0086] Please see Figure 1A , Figure 1A This is a schematic diagram of the architecture of the communication system used in the embodiments of this application. It should be noted that... Figure 1A This is a schematic diagram of one possible, non-limiting system. For example... Figure 1A As shown, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 may also include an Internet 300. The RAN 100 includes at least one RAN node (e.g., 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 elements 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, or they can be a single physical device integrating some core network element functions and some RAN node 110 functions. Terminals can be interconnected with each other, and RAN nodes 110 can be interconnected with each other via wired or wireless connection. Figure 1AThis is just a schematic diagram. The communication system may also include other network devices, such as wireless repeaters and wireless backhaul devices. Each device may also contain different functional units. Figure 1A It is not shown in the middle.

[0087] 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 access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0088] RAN node 110, sometimes also referred to as radio access network equipment, access network device, access network apparatus, RAN entity, or access node, constitutes part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in the communication system 10 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.

[0089] In one possible scenario, RAN node 110 can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system, etc. Figure 1A 110a), micro base stations or indoor stations (such as Figure 1AThe RAN node 110 can be a relay node or donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node 110 can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the RAN node 110 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). The RAN node 110 in this application can also be a logical node, logical module, or software capable of implementing all or part of the functions of the RAN node 110.

[0090] In another possible scenario, multiple RAN nodes 110 collaborate to assist the terminal in achieving wireless access, with each RAN node 110 implementing a portion of the base station's functions. For example, a RAN node 110 can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. CUs and DUs can be configured separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0091] 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 O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. 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.

[0092] For example, please see Figure 2 , Figure 2This is a schematic diagram of the architecture of the O-RAN system provided in this application. Figure 2 This is just an illustration; the O-RAN system may also include... Figure 2 Other components besides those shown. For example... Figure 2 As shown, the access network device (e.g., an eNB, gNB, or next-generation access network device) communicates with the core network elements in the CN via a backhaul link and with the terminal via an air interface.

[0093] Specifically, the BBU in the access network device communicates with the core network elements in the CN via a backhaul link, and the RU in the access network device communicates with at least one terminal via an air interface. The BBU communicates with at least one RU via a fronthaul link. The BBU and RU may or may not be co-located. The BBU includes at least one CU and at least one DU, which can communicate via at least one midhaul link.

[0094] Figure 3 This diagram illustrates the network element functional division and protocol layer structure of an O-RAN device. In some examples, the CU (Core Unit) is a logical node carrying the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU connects to network nodes such as the core network through interfaces, which can be interfaces such as E2 interfaces. Optionally, the CU may have some core network functions. The CU (e.g., the PDCP layer and higher layers) connects to the DU (e.g., the RLC layer and lower layers) through interfaces, which can be interfaces such as F1 interfaces. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, and in some examples, the signaling procedures of F1 are defined. The F1 interface supports the control plane F1-C and the user plane F1-U.

[0095] In some examples, the CU can be split into CU-CP (control unit-control plane) and CU-UP (control unit-user plane). CU-CP is a logical node carrying the RRC layer and PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal location updates, terminal registration with the network, and terminal handover. CU-UP is a logical node carrying the SDAP layer and PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in the terminal. The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0096] In some examples, a DU is a logical node that carries the radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0097] In some examples, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as fast Fourier transform (FFT), inverse fast Fourier transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more terminals via a wireless link.

[0098] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through the Lower-Layer Split CUS-Plane (LLS-CUS) interface. LLS-CUS may include LLS-C and LLS-U interfaces providing the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0099] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0100] A terminal is a device or module that accesses the aforementioned communication system and possesses corresponding communication functions. A terminal can also be referred to as terminal equipment, user equipment (UE), user device, access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile terminal, mobile device, user terminal, terminal unit, terminal station, terminal device, wireless communication equipment, user agent, or user device, etc. A terminal typically contains a communication module / communication unit, circuit, or chip that performs the corresponding communication functions. The terminal may also be configured with program instructions for performing the corresponding communication functions. Optionally, such as... Figure 1B As shown, the terminal may also include a module for implementing sensing functions (referred to as a sensing module in this application). This module can be a new module or an existing module with functional extensions (such as sensing functions). For example, it can extend the communication module so that it can process both communication signals and sensing signals. Optionally, a module that has both communication and sensing functions can be called a communication-sensing integrated module. The sensing module is used to support / implement the sensing function. Optionally, the sensing module can also be called a sensing function processor, etc., without limitation.

[0101] For RAN nodes, modules for implementing sensing functions (i.e., sensing modules) can also be configured. These modules can be new modules or extensions of existing modules with functionalities (e.g., sensing functions). The sensing modules support / implement sensing functions, such as processing sensing signals and / or enabling inter-station coordination under sensing capabilities.

[0102] Optionally, in the O-RAN architecture, the sensing module can be a new module set in the CU, or CU-CP, or CU-UP, or DU, or RU. Alternatively, the sensing module can be integrated with existing modules in the CU, or CU-CP, or CU-UP, or DU, or RU, that is, the existing functional modules can be extended to enable them to realize sensing functions.

[0103] 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, transportation vehicles with wireless communication capabilities, communication modules, and roadside units (RSUs) with terminal functions. The embodiments of this application do not limit the device form of the terminal.

[0104] For ease of description, the following description uses a base station as an example of RAN node 110. Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0105] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0106] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0107] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel. To communicate with the base station, the terminal needs to establish a radio connection on a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the terminal's serving cell. When the terminal communicates with this serving cell, it is also susceptible to interference from signals from neighboring cells.

[0108] In this application, "sending information" can be understood as one device sending information to another device, or it can also be understood as one logical module within a device sending information to another logical module. For example, "base station sending information" can be understood as the base station sending information to another device (such as a terminal), or it can be understood as logical module 1 in the base station sending information to logical module 2 in the base station.

[0109] In this application, "receiving information" can be understood as one device receiving information from another device, or it can also be understood as a logical module within a device receiving information from another logical module. For example, "base station receiving information" can be understood as the base station receiving information from another device (such as a terminal), or it can be understood as logical module 1 in the base station receiving information from logical module 2 in the base station.

[0110] The communication between different devices involved in this application 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. In other words, "sending information to… (e.g., a terminal)" or the relevant illustrations in the accompanying drawings can be understood as the destination of the information being the terminal. This can include sending information directly or indirectly to the terminal. "Receiving information from… (e.g., a terminal)" or "receiving information from… (e.g., a terminal)" or "receiving information sent (e.g., by a terminal)" or the relevant illustrations in the accompanying drawings can be understood as the source of the information being the terminal. This can include receiving information directly or indirectly from the terminal. Information may undergo necessary processing between the source and destination, such as format changes, analog-to-digital conversion, amplification, filtering, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood in a similar way, and will not be elaborated further here.

[0111] To facilitate understanding of the embodiments of this application, some knowledge / terms used in the solutions of this application are introduced 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 limiting the scope of protection claimed by this application.

[0112] 1. Sensing signals

[0113] Sensing signals refer to signals used to sense or detect targets, or signals used to sense or detect environmental information. For example, a sensing signal is an electromagnetic wave transmitted by a network-side device to sense environmental information. Sensing signals can also be called radar signals, radar sensing signals, detection signals, radar detection signals, environmental sensing signals, etc., and are not limited to these terms in the embodiments of this application.

[0114] 2. Echo signal

[0115] Echo signal refers to the electromagnetic feedback signal generated by electromagnetic waves (in this embodiment, the sensing signal) after being transmitted, scattered, and reflected by the sensing target.

[0116] 3. Perceiving the target

[0117] The sensing target can include various tangible objects on the ground that can be sensed, such as mountains, forests, or buildings, and can also include mobile objects such as vehicles, drones, pedestrians, and terminal devices. That is, the sensing target can be an active target or a passive target. An active target is a target that can actively emit signals, such as a mobile terminal or a car, while a passive target is a target that cannot actively emit signals, such as mountains or buildings. The sensing target can feed back electromagnetic waves to the network-side device. Optionally, the sensing target can also be called the sensed target, the detected target, the sensed object, the detected object, or the sensed device, etc. Optionally, in this application, the sensed target is sometimes simply referred to as a target. It should be understood that the names of the sensing targets mentioned above in this application can be used interchangeably, and the embodiments of this application are not limited thereto.

[0118] 4. Sensing area

[0119] The perception region can be understood as the area where the perceived target is located. Alternatively, the perception region can also be called the region of interest, or the perceived region of interest, etc.

[0120] 5. Distance resolution

[0121] Distance resolution refers to the ability of a sensing node to distinguish between sensing targets at different distances. Generally speaking, the closer the sensing target 1 and sensing target 2 are, the more difficult it is for the sensing node to distinguish between them; conversely, the farther the sensing target 1 and sensing target 2 are, the easier it is for the sensing node to distinguish between them. Typically, distance resolution is inversely proportional to bandwidth B, for example, ΔR = c / (2B), where ΔR is the distance resolution, c is the speed of light, and B is the bandwidth.

[0122] For a given sensing node, the smaller its distance resolution, the stronger its sensing ability. For example, if sensing node 1 has a distance resolution of 1 meter and sensing node 2 has a distance resolution of 0.5 meters, then sensing node 2 has a stronger sensing ability than sensing node 1.

[0123] 6. Speed ​​resolution

[0124] Velocity resolution refers to the ability of a sensing node to distinguish between sensing targets at different speeds. Generally speaking, the closer the speeds of sensing target 1 and sensing target 2 are, the more difficult it is for the sensing node to distinguish between them; conversely, the more dissimilar the speeds of sensing target 1 and sensing target 2 are, the easier it is for the sensing node to distinguish them. Typically, velocity resolution is inversely proportional to the coherent process interval (CPI) T and the frequency f used by the sensing node to transmit sensing signals. For example, it can be expressed as... Where Δv is the velocity resolution and α is a constant. For example, assuming a velocity resolution of 0.15 m / s, when the velocity difference between two targets is less than 0.15 m / s, the sensing node will have difficulty distinguishing them and will treat them as a single target.

[0125] For a given sensing node, the smaller its velocity resolution, the stronger its sensing capability. For example, if the velocity resolution of sensing node 1 is 0.3 m / s and the velocity resolution of sensing node 2 is 0.15 m / s, then sensing node 2 has a stronger sensing capability than sensing node 1.

[0126] 7. Communication Measurement Process

[0127] Terminal movement and other factors cause dynamic changes in channel conditions and communication quality. By measuring these dynamic changes in communication quality, the network can make communication-related decisions, such as mobility management, access control, and resource allocation. The main process of communication measurement includes measurement configuration, measurement execution, and measurement reporting.

[0128] (1) Measurement configuration

[0129] The measurement configuration defines the measurement objects, reporting criteria, and other related information. The measurement objects include the specific configuration of the measurement, such as the carrier frequency, the time-frequency position of the reference signal, and the subcarrier spacing. Reporting criteria are categorized by trigger type: periodic reporting, event-triggered reporting, or a combination of both (e.g., event-triggered reporting followed by periodic reporting). Event-triggered reporting configurations include various event categories and threshold values, the duration for which trigger conditions are met, the measurement quantities to be reported, and the type of reference signal. When the trigger conditions are met, a measurement report is sent. Periodic reporting involves sending measurement reports according to a specified reporting interval (reportInterval).

[0130] (2) Measurement execution: After receiving the measurement configuration, the terminal performs the measurement according to the measurement configuration and obtains the measurement results.

[0131] (3) Measurement Reporting: After obtaining the measurement results, the terminal evaluates whether to trigger a report according to the reporting criteria. The measurement report includes the physical cell identifier, the results of cell measurement (such as reference signal received power (RSRP)), etc.

[0132] The current 3GPP TS 38.331 (V18.3.0, Section 5.5) defines various measurement quantities and measurement events (hereinafter referred to as events). Each measurement event specifically includes entry and exit conditions. Taking event D1 as an example, the triggering condition for D1 is: the distance between the UE and referenceLocation1 (e.g., the location of base station 1) is greater than threshold 1, and the distance between the UE and referenceLocation2 (e.g., the location of base station 2) is less than threshold 2. In other words, the UE should consider entering the event when both conditions D1-1 and D1-2 are met simultaneously; and exit the event when conditions D1-3 or D1-4 are met. The specific conditions are as follows:

[0133] Inequality D1-1 (Entering condition 1): Ml1–Hys>Thresh1;

[0134] Inequality D1-2 (Entering condition 2): Ml2+Hys<Thresh2;

[0135] Inequality D1-3 (Leaving condition 1): Ml1+Hys<Thresh1;

[0136] Inequality D1-4 (Leaving condition 2): Ml2–Hys>Thresh2;

[0137] Where Ml1 represents the distance between the UE and referenceLocation1, Ml2 represents the distance between the UE and referenceLocation2, Hys represents the hysteresis parameter of the event, and Thresh1 and Thresh2 represent the two thresholds of the event.

[0138] However, the measurement quantities and measurement events defined in the current protocol are all defined for communication scenarios and are not applicable to perception scenarios.

[0139] Based on this, this application proposes a communication method and apparatus, which, for sensing scenarios, defines new measurement quantities and measurement events, thereby improving sensing performance.

[0140] It should be noted that in the description of this application, "instruction" can include direct and indirect instructions, as well as explicit and implicit instructions. The information indicated by a certain piece of information (such as the perception measurement configuration mentioned below) is called the information to be instructed. In specific implementation, there are many ways to indicate the information to be instructed. For example, the information to be instructed can be directly indicated, where the information to be instructed itself or its index is mentioned. Alternatively, the information to be instructed can be indirectly indicated by indicating other information, where there is a correlation between the other information and the information to be indicated. Another example is that only a part of the information to be indicated can be indicated, while the other parts are known, pre-agreed, or deducible. Furthermore, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing the instruction overhead to some extent.

[0141] The communication method and apparatus provided in this application will be further described below with reference to the accompanying drawings. It is understood that the embodiments of this application use a first sensing node and a central node as the main entities for interactive illustration. The central node, also known as a management node or control node, is used to send sensing measurement configurations and make sensing decisions based on received measurement reports. The first sensing node can also be called a sensing receiving node or receiving node. Furthermore, embodiments of this application may also include a second sensing node, which can also be called a sensing transmitting node or transmitting node. The transmitting node is used to send sensing signals, and the receiving node is used to receive / measure the echo signals of the sensing signals. Optionally, in embodiments of this application, the sensing signals can be used for both sensing and communication; such signals that can be used for both sensing and communication can be called integrated communication and sensing signals.

[0142] It should be noted that the central node, transmitting node, and receiving node involved in this application can be various devices supporting wireless sensing functions. Generally, the central node is a network-side device, such as a network-side access network device, which can be an access network equipment, a module (e.g., circuit, chip, or chip system, such as a sensing function processor), or a logical node, logical module, or software that can implement all or part of the access network device's functions. Alternatively, the central node can also be a core network element, such as a location management function (LMF), or a newly defined network element, such as a sensing management function (SMF). Another example is that the central node can be a network management device. Optionally, the central node can also be a terminal-side device, such as a terminal, or a communication module and / or sensing module in the terminal, or a circuit or chip (e.g., a modem chip (also known as a baseband chip), or a SoC chip / SIP chip containing a modem core, or a GPU / AI processor / ASIC / sensing function processor) in the terminal responsible for communication and / or sensing functions. Optionally, the aforementioned sensing function processor may also be referred to as a sensing module, used to support / implement sensing functions.

[0143] The transmitting and receiving nodes can be network-side devices, such as network-side access network devices, or terminal-side devices, such as terminals or communication modules and / or sensing modules within terminals. Optionally, the central node, transmitting node, and receiving node can be different nodes, or the transmitting node and receiving node can be the same node, or the central node and transmitting node can be the same node, or the central node and receiving node can be the same node, etc., and this application does not limit this. That is to say, the functions of different nodes can be deployed on the same node, or they can be deployed on different nodes. The transmitting and receiving nodes can also be collectively referred to as sensing nodes.

[0144] Optionally, the transmitting node and the receiving node can be the same node. Generally speaking, a sensing scenario where the transmitting node and the receiving node are the same node is called a single-base sensing scenario. For example, such as Figure 4 Figure (a) shows a schematic diagram of a single-base sensing scenario. The sensing nodes can be network-side devices such as base stations, stations (STAs), access points (APs), and wireless routers, or terminal-side devices such as mobile phones, tablets, automated guided vehicles (AGVs), drones, and automobiles. The central node is typically a network-side device. In a single-base sensing scenario, the sensing nodes can automatically transmit and receive signals for sensing and measurement.

[0145] Optionally, the transmitting node and the receiving node can also be different nodes. Generally speaking, a sensing scenario where the transmitting node and the receiving node are different nodes is called a dual-base sensing scenario. Figure 4 Image (b) is a schematic diagram of a scenario involving basic sensory perception. For example... Figure 4 As shown in (b), the central node, transmitting node, and receiving node are different nodes. There are communication links between the transmitting node, receiving node, and central node. Information exchange and parameter configuration are possible between the central node, transmitting node, and receiving node. The transmitting node and receiving node have independent sensing capabilities. The transmitting node or receiving node can be a network-side device such as a base station, STA, AP, or wireless router, or a terminal-side device such as a mobile phone, tablet, AGV, drone, or car. Figure 4 (b) uses a base station as an example only. The central node is generally a network-side device. In a dual-base sensing scenario, the transmitting node sends sensing signals, and the receiving node receives the echo signals corresponding to the sensing signals and performs sensing measurements through signal processing.

[0146] Optionally, in the dual-base scenario, there are also two special scenarios, such as Figure 4 As shown in (c), the central node and the transmitting node coincide. In this case, the central node has both the functions of a central node and a transmitting node; that is, the central node and the transmitting node are the same node. Figure 4 As shown in (d), the central node and the receiving node coincide. At this time, the central node has both the function of a central node and the function of a receiving node, that is, the central node and the receiving node are the same node.

[0147] Optionally, when the receiving node (i.e., the first sensing node) and the central node are the same communication device, the interaction between the first sensing node and the central node in this embodiment can be understood as the internal implementation of the communication device.

[0148] Please see Figure 5 , Figure 5 This is a flowchart illustrating the communication method provided in an embodiment of this application. Figure 5 As shown, the communication method may include the following steps:

[0149] S501, the central node sends the sensing measurement configuration to the first sensing node. Correspondingly, the first sensing node receives the sensing measurement configuration from the central node.

[0150] The sensing and measurement configuration indicates information about the sensing target, as well as sensing and measurement events (or measurement events, or events) associated with the sensing target. Optionally, the sensing and measurement configuration may be carried in an RRC message, or a medium access control control element (MAC CE), etc., without limitation.

[0151] The information about the perceived target can be its identifier or the identifier of the perception area where it is located. For example, the information about the perceived target can also be its location information or the location information of the perception area where it is located, etc., without limitation. Optionally, the location information of the perception area can be location coordinates or a location range. For example, when the location information of the perception area is represented by location coordinates, these coordinates can be, for example, the coordinates of the center of the perception area, or the coordinates of the location of the perceived target, etc., without limitation. The representation of the location range is usually related to the shape of the region of interest. For example, when the region of interest is rectangular, its location range can be determined by the location coordinates of the lower left and upper right vertices. Or, when the region of interest is circular, its location range can be determined by the location coordinates of the center and the radius r, where r is a number greater than 0. Or, when the region of interest is irregular, its location range can be represented by all the location coordinates that make up the irregular shape. For example, the specific form of the location coordinates can be absolute coordinates, such as latitude and longitude coordinates, or relative coordinates, etc., without limitation.

[0152] Optionally, the sensing measurement configuration can also be used to indicate one or more of the following: the sensing measurement quantity (or measurement amount), the threshold value (or threshold) corresponding to the sensing measurement event, the hysteresis value corresponding to the sensing measurement event, or the duration for which the trigger condition is met. Optionally, one or more of the following information—the sensing measurement quantity, the threshold value corresponding to the sensing measurement event, the hysteresis value corresponding to the sensing measurement event, and the duration for which the trigger condition is met—may not be indicated through the sensing measurement configuration, but through other messages, such as RRC connection reconfiguration messages. Optionally, one or more of the following information—the sensing measurement quantity, the threshold value corresponding to the sensing measurement event, the hysteresis value corresponding to the sensing measurement event, and the duration for which the trigger condition is met—may also be predefined, such as protocol predefined. This is not limited.

[0153] The aforementioned sensing measurements may include one or more of the following: the bistatic distance between the sensing target and the sensing node (or the bistatic distance between the sensing target), or the ranging accuracy of the sensing target. The bistatic distance between the sensing target and the sensing node can be understood as the sum of the sensing measurement distance between the sensing target and the first sensing node, and the sensing measurement distance between the sensing target and the second sensing node. The following will combine... Figure 6 The provided diagram illustrates the bistatic distance between the sensing target and the sensing node. For example... Figure 6 As shown, taking a sensing target including sensing target 1 and sensing target 2 as an example, the bibase distance d1 between sensing target 1 and the sensing node is equal to the sensing measurement distance d between sensing target 1 and the first sensing node. 11 And the sensing measurement distance d between sensing target 1 and the second sensing node. 12 The sum, that is, d1 = d 11 +d 12 The bibase distance d2 between the sensing target 2 and the sensing node is equal to the sensing measurement distance d between the sensing target 2 and the first sensing node. 21 And the sensing measurement distance d between sensing target 2 and the second sensing node. 22 The sum, that is, d2 = d 21 +d 22 Optionally, when the first sensing node and the second sensing node are the same node, the bibase distance between the sensing target and the sensing node can be understood as twice the sensing measurement distance between the sensing target and the first sensing node.

[0154] The ranging accuracy of the aforementioned sensing target can be understood as being related to the deviation between the perceived measured distance and the true distance (or actual distance) of the sensing target. For example, the ranging accuracy of the sensing target is equal to the perceived measured distance minus the true distance of the sensing target; or, the ranging accuracy of the sensing target is equal to the true distance minus the perceived measured distance of the sensing target; or, the ranging accuracy of the sensing target is equal to the absolute value of the deviation between the perceived measured distance and the true distance of the sensing target. Figure 6 Taking the perceived target 1 as an example, σ d1 =|(d11-drel11)+(d12-drel12)|, where “||” represents the absolute value, σ d1For the ranging accuracy of target 1, d11 is the perceived distance between target 1 and the first sensing node, drel11 is the true distance between target 1 and the first sensing node, d12 is the perceived distance between target 1 and the second sensing node, and drel12 is the true distance between target 1 and the second sensing node. Alternatively, the ranging accuracy of the target can be understood as the deviation between the bibase distance between the target and the sensing node and the true bibase distance between the target and the sensing node (here, the true bibase distance between the target and the sensing node is the sum of the true distance between the target and the first sensing node and the true distance between the target and the second sensing node). For example, using... Figure 6 Taking the perceived target 1 as an example, σ d1 =d1-drel1, where, σ d1 To determine the ranging accuracy of target 1, d1 is the bibase distance between target 1 and the sensing node, and drel1 is the true bibase distance between target 1 and the sensing node, where drel1 = drel 11 +drel 12 Alternatively, it can be understood that the ranging accuracy of a sensed target can also be related to the bandwidth and the signal-to-noise ratio (SNR) of the sensed signal. For example, the ranging accuracy of a sensed target is inversely proportional to the bandwidth B and the SNR of the sensed signal (or the echo signal). More specifically, the ranging accuracy of a sensed target... Where α is a constant.

[0155] Optionally, the true distance between any sensing target and a sensing node (e.g., the first sensing node or the second sensing node) can be calculated based on the location information of the sensing target and the sensing node. For example, in a sensing scenario, a sensing target with a known location can be used as a reference point. The sensing target can be a passive reflector or an active reflector, etc. Therefore, the true distance between the reference point and the sensing node can be calculated based on the location information of the reference point, combined with the location information of the sensing node itself.

[0156] Optionally, the sensing measurement quantity may also include the sensing measurement velocity of the sensing target, the velocity measurement accuracy of the sensing target, etc., without limitation. The sensing measurement velocity of the sensing target can be understood as the absolute velocity of the sensing target, or it can be the relative velocity of the sensing target relative to the sensing node, etc., without limitation. The velocity measurement accuracy of the sensing target can be the deviation between the sensing measurement velocity and the actual velocity of the sensing target, or the velocity measurement accuracy is inversely proportional to the coherent process interval T, the frequency f used by the sensing node to transmit the sensing signal, and the signal-to-noise ratio SNR. More specifically, the velocity measurement accuracy of the sensing target... Where α is a constant.

[0157] In one possible design (i), when the perceived measurement is a distance-related measurement, the perceived measurement events associated with the perceived target may include one or more of events S-D1, S-D2, S-D3, S-D4, etc., without limitation. Optionally, S in S-Dx can be understood as sensing, and D can be understood as distance. In the embodiments of this application, x can be equal to 1, 2, 3, or 4. It should be understood that the naming of the newly defined events S-D1, S-D2, S-D3, and S-D4 in the embodiments of this application is only an example and does not limit these events to other naming methods. The explanations for events S-D1, S-D2, S-D3, and S-D4 are shown in Table 1 below:

[0158] Table 1

[0159]

[0160] It should be noted that the symbol "||" in the embodiments of this application is an absolute value symbol. For example, |d2-d1| represents the absolute value of the difference between d2 and d1. As can be seen from Table 1 above, the measurement quantity related to events S-D1 and S-D2 is the bibase distance between the sensing target and the sensing node, and the measurement quantity related to events S-D3 and S-D4 is the ranging accuracy of the sensing target.

[0161] Optionally, the hysteresis values ​​Hys1, Hys2, Hys3, Hys4, Hys5, Hys6, Hys7, and Hys8 may be the same or different. Similarly, the given threshold values ​​Thresh1, Thresh2, Thresh3, Thresh4, Thresh5, Thresh6, Thresh7, and Thresh8 may also be the same or different. For example, Thresh1 and Thresh2 may be the same, or Thresh3 and Thresh4 may be the same; this application does not limit this. Optionally, the hysteresis values ​​and the given threshold can be configured by the central node or predefined by the protocol; this is not limited.

[0162] Optionally, the entry and / or exit conditions may also include the case of "equal to". For example, the entry condition for event S-D1 is |d2-d1|+Hys1≤Thresh1, and the exit condition for event S-D1 is |d2-d1|-Hys2>Thresh2. Another example is that the entry condition for event S-D1 is |d2-d1|+Hys1<Thresh1, and the exit condition for event S-D1 is |d2-d1|-Hys2≥Thresh2. Yet another example is that the entry condition for event S-D1 is |d2-d1|+Hys1≤Thresh1, and the exit condition for event S-D1 is |d2-d1|-Hys2≥Thresh2. Optionally, the case of "equal to" may not be specified.

[0163] In one possible design (ii), when the perceived measurement is a velocity-related measurement, the perceived measurement events associated with the perceived target may also include one or more of events S-V1, S-V2, S-V3, and S-V4, without limitation. Optionally, the first S in S-Vx can be understood as sensing, and the second V can be understood as velocity. In this embodiment, x can be equal to 1, 2, 3, or 4. It should be understood that the naming of the newly defined events S-V1, S-V2, S-V3, and S-V4 in this embodiment is only an example and does not limit these events to other naming methods. The explanations for events S-V1, S-V2, S-V3, and S-V4 are shown in Table 2 below:

[0164] Table 2

[0165]

[0166] As shown in Table 2 above, the measurement quantity related to events S-V1 and S-V2 is the sensing measurement velocity of the sensing target, and the measurement quantity related to events S-V3 and S-V4 is the velocity measurement accuracy of the sensing target.

[0167] Optionally, in the embodiments of this application, distance resolution and / or velocity resolution can also be collectively referred to as sensing resolution, or understood as sensing resolution including distance resolution and / or velocity resolution. Optionally, in the embodiments of this application, ranging accuracy and / or velocity accuracy can also be collectively referred to as sensing accuracy, or understood as sensing accuracy including ranging accuracy and / or velocity accuracy.

[0168] For ease of description, the following text mainly uses Design (I) as an example for illustrative purposes. Further descriptions of Design (II) can be found in the description of Design (I), the difference being that the perception measurement events and quantities related to Design (I) need to be replaced with those related to Design (II). It is understood that the thresholds 1 to 8 and hysteresis values ​​1 to 8 described in Tables 1 and 2 of this application are merely exemplary descriptions of the thresholds and hysteresis values, and do not limit the values ​​of thresholds 1 to 8 and hysteresis values ​​1 to 8 in Table 1 to be the same as those in Table 2.

[0169] S502, the first sensing node acquires the sensing measurement distance between the sensing target and the first sensing node and the second sensing node respectively, and the sensing measurement distance is used to determine the sensing measurement result.

[0170] In one possible implementation 1, the sensing measurement distance is used to determine the sensing measurement result, which can be understood as: the sensing measurement result is the sum of the sensing measurement distance between the sensing target and the first sensing node and the sensing measurement distance between the sensing target and the second sensing node, that is, the sensing measurement result is the bibase distance between the sensing target and the sensing node.

[0171] In another possible implementation 2, the perceived measurement distance is used to determine the perceived measurement result, which can be understood as: the perceived measurement result is the ranging accuracy of the perceived target. The ranging accuracy of the perceived target is related to the deviation between the perceived measurement distance and the true distance, or the ranging accuracy of the perceived target is related to the bandwidth and the signal-to-noise ratio of the perceived signal. Further details can be found in the relevant description in step S501 above, and will not be repeated here.

[0172] Optionally, the sensing distance between the first sensing node and the sensing target and the second sensing node can be described as follows: the first sensing node obtains the sum of the sensing distance between the sensing target and the first sensing node and the sensing distance between the sensing target and the second sensing node, or the first sensing node obtains the bi-base distance between the sensing target and the sensing node.

[0173] For example, the bistatic distance between the sensing target and the sensing node can be estimated by measuring the sensing signal (or the echo signal of the sensing signal). For instance, the first sensing node can estimate the bistatic distance between the sensing target and the sensing node by counting the time from when the second sensing node sends the sensing signal to when the first sensing node receives the echo signal of the sensing signal. For example, the bistatic distance between the sensing target and the sensing node = (the time point t1 when the echo signal is received - the time point t0 when the sensing signal is sent) × the speed of light c.

[0174] S503, The first sensing node determines whether the sensing measurement event is satisfied based on the sensing measurement results.

[0175] The above-mentioned determination of whether a perception measurement event is met based on the perception measurement results can also be described as: determining whether a perception measurement event is triggered based on the perception measurement results, or determining whether a perception measurement event is triggered based on the perception measurement results, or determining whether the triggering conditions of a perception measurement event are met based on the perception measurement results, or determining whether to enter or leave a perception measurement event based on the perception measurement results.

[0176] Regarding implementation 1 above, in a specific implementation 1.1, when the sensing measurement result is the bibase distance between the sensing target and the sensing node, the first sensing node's determination of entering or leaving the sensing measurement event based on the sensing measurement result can be understood as follows: If the first condition is met, the entry condition of the sensing measurement event is determined (or described as the sensing measurement event being triggered if the first condition is met); if the second condition is met, the departure condition of the sensing measurement event is determined (or described as the sensing measurement event not being triggered if the second condition is met). Wherein, the first condition is |d2-d1|+Hys1<Thresh1, and the duration is greater than or equal to a given duration T1; the second condition is |d2-d1|-Hys2>Thresh2, and the duration is greater than or equal to a given duration T2. d1 represents the sensing measurement distance between the first sensing target and the first sensing node, and the sum of the sensing measurement distances between the first sensing target and the second sensing node (i.e., d1 is the bibase distance between the first sensing target and the sensing node, or the bibase distance of the first sensing target). d2 represents the sensing measurement distance between the second sensing target and the first sensing node, and the sum of the sensing measurement distances between the second sensing target and the second sensing node (i.e., d2 is the bibase distance between the second sensing target and the sensing node, or the bibase distance of the second sensing target). The first and second sensing targets belong to the sensing target group. Hys1 is the first hysteresis value (or hysteresis value 1), Thresh1 is the first threshold (or given threshold 1), Hys2 is the second hysteresis value (or hysteresis value 2), and Thresh2 is the second threshold (or given threshold 2). That is, the sensing measurement event under 1.1 is S-D1.

[0177] Regarding implementation 1 above, in a specific implementation 1.2, when the sensing measurement result is the bibase distance between the sensing target and the sensing node, the first sensing node's determination of entering or leaving the sensing measurement event based on the sensing measurement result can be understood as follows: If the third condition is met, the entry condition for the sensing measurement event is determined (or described as the sensing measurement event being triggered if the third condition is met); if the fourth condition is met, the departure condition for the sensing measurement event is determined (or described as the sensing measurement event not being triggered if the fourth condition is met). The third condition is |d2-d1|-Hys3>Thresh3, and the duration is greater than or equal to the given duration T3; the fourth condition is |d2-d1|+Hys4<Thresh4, and the duration is greater than or equal to the given duration T4. d1 is the bibase distance of the first sensing target, d2 is the bibase distance of the second sensing target, and the first and second sensing targets belong to the sensing targets. Hys3 is the third hysteresis value (or hysteresis value 3), Thresh3 is the third threshold (or given threshold 3), Hys4 is the fourth hysteresis value (or hysteresis value 4), and Thresh4 is the fourth threshold (or given threshold 4). That is, the sensing measurement event under 1.2 is S-D2.

[0178] Regarding implementation 2 above, in a specific implementation 2.1, when the sensing measurement result is the ranging accuracy of the sensing target, determining whether the sensing measurement event is satisfied based on the sensing measurement result can be understood as follows: if the fifth condition is met, the entry condition for the sensing measurement event is determined (or described as the sensing measurement event being triggered if the fifth condition is met); if the sixth condition is met, the exit condition for the sensing measurement event is determined (or described as the sensing measurement event not being triggered if the sixth condition is met). Wherein, the fifth condition is P + Hys5 > Thresh5, and the duration is greater than or equal to the given duration T5; the sixth condition is P - Hys6 < Thresh6, and the duration is greater than or equal to the given duration T6. Here, P is the ranging accuracy of the sensing target, Hys5 is the fifth hysteresis value (or hysteresis value 5), Thresh5 is the fifth threshold (or given threshold 5), Hys6 is the sixth hysteresis value (or hysteresis value 6), and Thresh6 is the sixth threshold (or given threshold 6). That is, the sensing measurement event under 2.1 is S-D3.

[0179] Regarding implementation 2 above, in a specific implementation 2.2, when the sensing measurement result is the ranging accuracy of the sensing target, determining whether the sensing measurement event is satisfied based on the sensing measurement result can be understood as follows: if the seventh condition is met, the entry condition for the sensing measurement event is determined (or described as the sensing measurement event being triggered if the seventh condition is met); if the eighth condition is met, the exit condition for the sensing measurement event is determined (or described as the sensing measurement event not being triggered if the eighth condition is met). Here, the seventh condition is P - Hys7 < Thresh7, and the duration is greater than or equal to the given duration T7; the eighth condition is P + Hys8 > Thresh8, and the duration is greater than or equal to the given duration T8. Here, P is the ranging accuracy of the sensing target, Hys7 is the seventh hysteresis value (or hysteresis value 7), Thresh7 is the seventh threshold (or given threshold 7), Hys8 is the eighth hysteresis value (or hysteresis value 8), and Thresh8 is the eighth threshold (or given threshold 8). That is, the sensing measurement event in 2.2 is S-D4.

[0180] It should be noted that the condition "duration greater than or equal to the given duration Tx" in the first to eighth conditions is optional, meaning that the duration for which the triggering condition is satisfied is not limited. Furthermore, the case of "equal to" can be left unspecified, or it can be specified in any one or more of the first to eighth conditions. For example, in the first condition, |d2-d1|+Hys1<Thresh1 can also be |d2-d1|+Hys1≤Thresh1.

[0181] Optionally, as described above, this applies to event S-D1. Specifically, when the number of sensed targets is three or more, the entry condition for event S-D1 can be understood as follows: when the absolute value of the difference between the bibase distances of any different sensed targets plus the hysteresis value 1 is less than a given threshold 1, the entry condition for event S-D1 is considered satisfied. Similarly, the exit condition for event S-D1 can be understood as follows: when the absolute value of the difference between the bibase distances of all different sensed targets minus the hysteresis value 2 is greater than a given threshold 2, the exit condition for event S-D1 is considered satisfied.

[0182] For example, consider three sensing targets, namely sensing target 1, sensing target 2, and sensing target 3. The bibasic distance of sensing target 1 is d1, the bibasic distance of sensing target 2 is d2, and the bibasic distance of sensing target 3 is d3. Assume ①:

[0183] |d2-d1|+Hys1>Thresh1;

[0184] |d3-d1|+Hys1>Thresh1;

[0185] |d3-d2|+Hys1<Thresh1;

[0186] Since the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 2 plus the hysteresis value 1 in assumption ① is less than the given threshold 1, the event S-D1 is determined to be triggered.

[0187] And assume ②:

[0188] |d2-d1|-Hys2>Thresh2;

[0189] |d3-d1|-Hys2>Thresh2;

[0190] |d3-d2|-Hys2>Thresh2;

[0191] Since, in assumption ②, the absolute value of the difference between the bibase distances of perceived target 2 and perceived target 1 minus the hysteresis value 2 is greater than the given threshold 2, the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 1 minus the hysteresis value 2 is greater than the given threshold 2, and the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 2 minus the hysteresis value 2 is greater than the given threshold 2, it is determined that event S-D1 was not triggered.

[0192] Optionally, when the number of sensed targets is three or more, the above-mentioned entry condition for event S-D1 can also be understood as follows: when the absolute value of the difference in bistatic distances of a first preset number of different sensed targets plus the hysteresis value 1 is less than a given threshold 1, the entry condition for event S-D1 is considered satisfied; the above-mentioned exit condition for event S-D1 can be understood as follows: when the absolute value of the difference in bistatic distances of a second preset number of different sensed targets minus the hysteresis value 2 is greater than a given threshold 2, the exit condition for event S-D1 is considered satisfied. The values ​​of the first preset number and the second preset number can be configured or predefined by the protocol, and are not limited. The values ​​of the first preset number and the second preset number may be the same or different, and are not limited.

[0193] For example, consider three sensing targets, namely sensing target 1, sensing target 2, and sensing target 3. The bibasic distance of sensing target 1 is d1, the bibasic distance of sensing target 2 is d2, and the bibasic distance of sensing target 3 is d3. The first preset number is 2, the second preset number is 2, and assumption ③:

[0194] |d2-d1|+Hys1>Thresh1;

[0195] |d3-d1|+Hys1>Thresh1;

[0196] |d3-d2|+Hys1<Thresh1;

[0197] Since assumption ③ only exists where the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 2 plus the hysteresis value 1 is less than the given threshold 1, and does not satisfy the first preset number 2, it is determined that event S-D1 was not triggered.

[0198] And assume ④:

[0199] |d2-d1|+Hys1>Thresh1;

[0200] |d3-d1|+Hys1<Thresh1;

[0201] |d3-d2|+Hys1<Thresh1;

[0202] Since, in assumption ④, the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 1 plus the hysteresis value 1 is less than the given threshold 1, and the absolute value of the difference between the bibase distances of perceived target 3 and perceived target 2 plus the hysteresis value 1 is less than the given threshold 1, the first preset number 2 is satisfied, therefore, event S-D1 is determined to be triggered.

[0203] And assume ⑤:

[0204] |d2-d1|-Hys2<Thresh2;

[0205] |d3-d1|-Hys2>Thresh2;

[0206] |d3-d2|-Hys2>Thresh2;

[0207] Since, in assumption ⑤, there exists an absolute value of the difference between the bibase distances of perceived target 3 and perceived target 1 minus the hysteresis value 2 that is greater than the given threshold 2, and there exists an absolute value of the difference between the bibase distances of perceived target 3 and perceived target 2 minus the hysteresis value 2 that is greater than the given threshold 2, satisfying the second preset number 2, it is determined that event S-D1 has not been triggered.

[0208] Optionally, as described above, this applies to event S-D2. When the number of perceived targets is two or more, the understanding of the entry or exit conditions for event S-D2 can be referenced to the understanding of the entry or exit conditions for event S-D1, and will not be repeated here.

[0209] Optionally, as described above, this applies to event S-D3. When the number of sensed targets is one or more, the entry condition for event S-D3 can be understood as follows: if the ranging accuracy P plus the hysteresis value 5 of any sensed target is greater than a given threshold 5, the entry condition for event S-D3 is considered satisfied. The exit condition for event S-D3 can be understood as follows: if the ranging accuracy P minus the hysteresis value 6 of all sensed targets is less than a given threshold 6, the exit condition for event S-D3 is considered satisfied. Alternatively, the entry condition for event S-D3 can be understood as follows: if the ranging accuracy P plus the hysteresis value 5 of a third preset number of sensed targets is greater than a given threshold 5, the entry condition for event S-D3 is considered satisfied. The exit condition for event S-D3 can be understood as follows: if the ranging accuracy P minus the hysteresis value 6 of a fourth preset number of sensed targets is less than a given threshold 6, the exit condition for event S-D3 is considered satisfied. The values ​​of the third and fourth preset numbers can be configured or predefined by the protocol, and are not limited. The values ​​of the third and fourth preset numbers may be the same or different, and are not limited. Similarly, when the number of sensed targets is two or more, the understanding of the entry or exit conditions for event S-D4 can be referenced to the understanding of the entry or exit conditions for event S-D3, and will not be elaborated here.

[0210] Optionally, upon the fulfillment of a sensing measurement event (or, in other words, upon fulfillment of the entry condition for a sensing measurement event, or upon fulfillment of the trigger condition for a sensing measurement event, or upon the triggering of a sensing measurement event), the first sensing node may send a measurement report to the central node. Accordingly, the central node receives the measurement report from the first sensing node. The measurement report may indicate the sensing measurement result and / or a comparison of the sensing measurement result with a threshold. Optionally, the measurement report may also indicate the identifier of the sensing node, such as the identifier of the first sensing node, or the identifier of the second sensing node, etc.

[0211] For example, the sensing measurement result may indicate one or more of the following information: the bibase distance of the first sensing target, the bibase distance of the second sensing target, the difference between the bibase distances of the first and second sensing targets, the absolute value of the difference between the bibase distances of the first and second sensing targets, or the ranging accuracy of the sensing target. For example, when the sensing measurement event is event S-D1 or event S-D2, the sensing measurement result in the measurement report may indicate the bibase distance of the first and second sensing targets, or indicate the difference (or the absolute value of the difference) between the bibase distances of the first and second sensing targets. Optionally, when the sensing measurement event is event S-D1 or event S-D2, the sensing measurement result may also indicate the identifier of the first and second sensing targets. This indication may be a direct / explicit indication, such as directly indicating the identifier of the first and second sensing targets, or it may be an indirect / implicit indication, such as implicitly indicating an association identifier corresponding to the first and second sensing targets. For example, when the sensing measurement event is event S-D3 or event S-D4, the sensing measurement results in the measurement report can indicate the ranging accuracy of the sensed target. Optionally, when the sensing measurement event is event S-D3 or event S-D4, the sensing measurement results can also indicate the identification of the sensed target.

[0212] For example, when the sensing measurement event is event S-D1 or event S-D2, the comparison result between the sensing measurement result and the threshold can be the comparison result of the absolute value of the difference between the bibase distances of different sensing targets plus or minus the hysteresis value and the corresponding threshold. For example, taking event S-D1 as an example, the comparison result between the sensing measurement result and the threshold is |d2-d1|+Hys1<Thresh1. For another example, taking event S-D2 as an example, the comparison result between the sensing measurement result and the threshold is |d2-d1|-Hys3>Thresh3.

[0213] For example, when the sensing measurement event is event S-D3 or event S-D4, the comparison result between the sensing measurement result and the threshold can be the comparison result of the ranging accuracy of the sensing target plus or minus the hysteresis value and the corresponding threshold. For example, taking event S-D3 as an example, the comparison result between the sensing measurement result and the threshold is P+Hys5>Thresh5. For another example, taking event S-D4 as an example, the comparison result between the sensing measurement result and the threshold is P-Hys7<Thresh7.

[0214] For the central node, after receiving the measurement report, the central node can make perception decisions based on the measurement report, such as perception-oriented mobility management and perception resource allocation.

[0215] Taking event S-D1 as an example, when the triggering conditions of event S-D1 are met, it indicates that the distance resolution of the sensing node is too low and it is difficult to distinguish the sensing target. Therefore, the central node can increase the allocation of sensing resources or switch to other sensing nodes with more resources to improve the distance resolution based on the measurement report corresponding to event S-D1.

[0216] Taking event S-D2 as an example, when the triggering conditions of event S-D2 are met, it indicates that the distance resolution of the sensing node is too high. Therefore, the central node can reduce the allocation of sensing resources based on the measurement report corresponding to event S-D2 to save resources.

[0217] Taking event S-D3 as an example, when the triggering conditions of event S-D3 are met, it indicates that the ranging accuracy of the sensed target is too low. Therefore, the central node can increase sensing resources or transmission power, or switch to other sensing nodes to sense based on the measurement report corresponding to event S-D3, thereby improving the sensing accuracy.

[0218] Taking event S-D4 as an example, when the triggering conditions of event S-D4 are met, it indicates that the ranging accuracy of the perceived target is too high. Therefore, the central node can reduce the allocation of sensing resources based on the measurement report corresponding to event S-D4 to save resources.

[0219] In this embodiment, new measurement quantities and measurement events are defined for the sensing scenario. Specifically, the central node configures measurement events related to sensing distance measurement and reports the sensing measurement results when the triggering conditions of the measurement events are met. This assists the central node in making reasonable sensing decisions, which helps improve the accuracy of sensing decisions. For example, sensing decisions include sensing-oriented mobility management and sensing resource allocation, thus improving sensing performance and resource utilization.

[0220] Optionally, the above Figure 5 The illustrated embodiments can also be applied to the O-RAN architecture. It should be understood that, under the O-RAN architecture, Figure 5 The access network devices involved can be replaced by CU (e.g., CU-CP or CU-UP), DU, or RU, etc.

[0221] The following will combine Figures 7-9 The communication device provided in this application will be described in detail.

[0222] It is understood that, in order to achieve the functions in the above embodiments, the communication device includes hardware structures and / or software modules corresponding to each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0223] Figures 7-9 This is a schematic diagram of the possible communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the first sensing node and the central node in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. For ease of understanding, this part mainly uses the first sensing node as the terminal and the central node as an access network device (e.g., a base station) as an example for illustrative explanation. For example, the first sensing node can be as follows: Figure 1A One of the terminals 120a-120j shown can have a central node such as Figure 1A The RAN node shown is 110a or 110b. Optionally, the first sensing node can also be a module (such as a chip) applied to the terminal, and the central node can also be a module (such as a chip) applied to the access network device.

[0224] like Figure 7 As shown, the communication device 700 includes a processing unit 710 and a transceiver unit 720. The transceiver unit 720 and the processing unit 710 can be software, hardware, or a combination of both. Optionally, the communication device 700 may further include a storage unit 730 for storing device program code and / or data. Figure 7 Not shown in the image.

[0225] The transceiver unit 720 can implement sending and / or receiving functions. Optionally, the transceiver unit 720 can also be called a communication unit or an acquisition unit, etc. The transceiver unit 720 may further include a receiving unit and / or a sending unit, wherein the receiving unit is used to implement the receiving function, and the sending unit is used to implement the sending function. Optionally, the transceiver unit 720 can be used to receive information sent by other devices, and can also be used to send information to other devices.

[0226] The communication device 700 is used to achieve the above. Figure 5 The method embodiment shown illustrates the function of the first sensing node. Taking a terminal-side communication device as an example, the terminal-side communication device can be a terminal or a communication module and / or sensing module in the terminal, or a module, circuit, or chip in the terminal responsible for communication and / or sensing functions. Alternatively, the communication device 700 can be used to implement the above-mentioned functions. Figure 5The function of the central node in the method embodiment shown is illustrated by taking a network-side device as an example. This network-side device could be an access network device, a module within the access network device (e.g., a circuit, chip, or chip system), or a logic node, logic module, or software capable of implementing all or part of the access network device's functions. Optionally, the module used to implement the sensing function can be called a sensing module or a sensing function processor. This sensing module can be a new module or an existing module with functional (e.g., sensing function) extensions. For example, it can extend a communication module so that it can process both communication signals and sensing signals. Optionally, a module possessing both communication and sensing functions can be called a communication-sensing integrated module.

[0227] When the communication device 700 is used to implement Figure 5 In the method embodiment shown, the function of the first sensing node (e.g., a terminal) is as follows:

[0228] The transceiver unit 720 is used to receive a sensing measurement configuration, the sensing measurement configuration indicating information about a sensing target and a sensing measurement event associated with the sensing target; the processing unit 710 is used to obtain the sensing measurement distances between the sensing target and a first sensing node and a second sensing node, respectively, the sensing measurement distances being used to determine the sensing measurement results; the processing unit 710 is used to determine whether the sensing measurement event is satisfied based on the sensing measurement results.

[0229] In one possible implementation, the sensing measurement distance is used to determine the sensing measurement result, including:

[0230] The sensing measurement result is the sum of the sensing measurement distance between the sensing target and the first sensing node, and the sensing measurement distance between the sensing target and the second sensing node.

[0231] In one possible implementation, the sensing target includes a first sensing target and a second sensing target; when determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit 710 is specifically used for:

[0232] If the first condition is met, determine whether the entry condition for the sensing measurement event is met; or,

[0233] If the second condition is met, then the departure condition of the perceived measurement event is determined to be satisfied;

[0234] Wherein, the first condition is |d2-d1|+Hys1<Thresh1, and the duration is greater than or equal to a given duration T1; the second condition is |d2-d1|-Hys2>Thresh2, and the duration is greater than or equal to a given duration T2; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys1 is a first hysteresis value; Thresh1 is a first threshold; Hys2 is a second hysteresis value; and Thresh2 is a second threshold.

[0235] In one possible implementation, the sensing target includes a first sensing target and a second sensing target; when determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit 710 is specifically used for:

[0236] If the third condition is met, determine whether the entry condition for the sensing measurement event is met; or,

[0237] If the fourth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied;

[0238] Wherein, the third condition is |d2-d1|-Hys3>Thresh3, and the duration is greater than or equal to the given duration T3; the fourth condition is |d2-d1|+Hys4<Thresh4, and the duration is greater than or equal to the given duration T4; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys3 is the third hysteresis value; Thresh3 is the third threshold; Hys4 is the fourth hysteresis value; and Thresh4 is the fourth threshold.

[0239] In one possible implementation, the sensing measurement distance is used to determine the sensing measurement result, including:

[0240] The sensing measurement result is the ranging accuracy of the sensing target;

[0241] The ranging accuracy of the perceived target is related to the deviation between the perceived distance and the actual distance of the perceived target, or the ranging accuracy of the perceived target is related to the bandwidth and the signal-to-noise ratio of the perceived signal.

[0242] In one possible implementation, when determining whether the perception measurement event is satisfied based on the perception measurement result, the processing unit 710 is specifically configured to:

[0243] If the fifth condition is met, then the entry condition for the sensing measurement event is determined to be met; or,

[0244] If the sixth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied;

[0245] Wherein, the fifth condition is P + Hys5 > Thresh5, and the duration is greater than or equal to the given duration T5; the sixth condition is P - Hys6 < Thresh6, and the duration is greater than or equal to the given duration T6; where P is the ranging accuracy of the perceived target, Hys5 is the fifth hysteresis value, Thresh5 is the fifth threshold, Hys6 is the sixth hysteresis value, and Thresh6 is the sixth threshold.

[0246] In one possible implementation, when determining whether the perception measurement event is satisfied based on the perception measurement result, the processing unit 710 is specifically configured to:

[0247] If the seventh condition is met, then the entry condition for the sensing measurement event is determined to be satisfied; or,

[0248] If the eighth condition is met, then the departure condition for the perceived measurement event is determined to be satisfied.

[0249] Wherein, the seventh condition is P - Hys7 < Thresh7, and the duration is greater than or equal to the given duration T7; the eighth condition is P + Hys8 > Thresh8, and the duration is greater than or equal to the given duration T8; where P is the ranging accuracy of the perceived target, Hys7 is the seventh hysteresis value, Thresh7 is the seventh threshold, Hys8 is the eighth hysteresis value, and Thresh8 is the eighth threshold.

[0250] In one possible implementation, the sensing target includes a first sensing target and a second sensing target; the transceiver unit 720 is further configured to:

[0251] Upon fulfillment of the sensing measurement event, a measurement report is sent; wherein the measurement report indicates the sensing measurement result and / or the comparison result of the sensing measurement result with a threshold.

[0252] In one possible implementation, the sensing measurement result indicates one or more of the following information: the bibase distance of a first sensing target, the bibase distance of a second sensing target, the difference between the bibase distance of the first sensing target and the bibase distance of the second sensing target, or the ranging accuracy of the sensing target; wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

[0253] In one possible implementation, the information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

[0254] In one possible design, when the communication device 700 is a terminal or a communication module within a terminal, the functionality of the processing unit 710 can be implemented by one or more processors. Specifically, 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 transceiver unit 720 can be implemented by transceiver circuitry.

[0255] In one possible design, when the communication device 700 is a circuit or chip in a terminal responsible for communication 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 710 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver unit 720 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0256] When the communication device 700 is used to implement Figure 5 The function of the central node (e.g., access network device) in the method embodiment shown is as follows:

[0257] Processing unit 710 is configured to determine a sensing measurement configuration, wherein the sensing measurement configuration indicates information about a sensing target and a sensing measurement event associated with the sensing target; the sensing measurement event is determined to be satisfied based on a sensing measurement result, wherein the sensing measurement result is determined based on a sensing measurement distance, wherein the sensing measurement distance is the sensing measurement distance between the sensing target and a first sensing node and a second sensing node respectively; transceiver unit 720 is configured to transmit the sensing measurement configuration.

[0258] In one possible implementation, the transceiver unit 720 is further configured to:

[0259] Receive a measurement report; wherein the measurement report indicates the sensing measurement result and / or the comparison result of the sensing measurement result with a threshold.

[0260] In one possible implementation, the sensing target includes a first sensing target and a second sensing target; the sensing measurement result indicates one or more of the following information:

[0261] The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target;

[0262] Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

[0263] For a more detailed description of the processing unit 710 and the transceiver unit 720 mentioned above, please refer to [link / reference]. Figure 5 The relevant descriptions in the method embodiments shown.

[0264] It is understood that the division of units in the above-described device is merely a logical functional division. Each function can correspond to a functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated into a single physical entity, or they can be distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both. 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.

[0265] In one 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 application-specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0266] In one example, storage unit 730 may include random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory and / or registers, etc.

[0267] like Figure 8 As shown, the communication device 800 includes a processor 810, and optionally an interface circuit 820. The processor 810 and the interface circuit 820 are coupled to each other. It is understood that the interface circuit 820 can be a transceiver or an input / output interface. Optionally, the communication device 800 may also include a memory 830 for storing computer programs or instructions executed by the processor 810, or storing input data required by the processor 810 to execute instructions, or storing data generated by the processor 810 after executing computer programs or instructions.

[0268] When the communication device 800 is used to implement Figure 5 In the method shown, the processor 810 is used to implement the functions of the processing unit 710, and the interface circuit 820 is used to implement the functions of the transceiver unit 720.

[0269] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information sent to the terminal by the access network device through other modules (such as an RF module or antenna) in the terminal; or, the terminal chip sends information to other modules (such as an RF module or antenna) in the terminal, which is information sent by the terminal to the access network device.

[0270] When the aforementioned communication device is a module applied to an access network device, the access network device module implements the functions of the access network device in the above method embodiments. The access network device module receives information from other modules (such as radio frequency modules or antennas) in the access network device, which is information sent by the terminal to the access network device; or, the access network device module sends information to other modules (such as radio frequency modules or antennas) in the access network device, which is information sent by the access network device to the terminal. Here, the access network device module can be the baseband chip of the access network device, or a CU, DU, or other module, or a device under an open radio access network (O-RAN) architecture, such as an open CU, open DU, etc.

[0271] like Figure 9 As shown, the communication device 900 includes a processor 910, a memory 920, and a transceiver 930. The processor 910 is mainly used for processing communication protocols and communication data; controlling terminal / access network devices; executing software programs; and processing data from software programs. The memory 920 can store computer program code, software programs, and data. The transceiver 930 includes a transmitter 931, a receiver 932, and radio frequency circuitry (…). Figure 9 (not shown in the image), antenna 933, etc.

[0272] The processor 910 can also be called a processing unit, processing board, processing module, or processing device. The transceiver 930 can also be called a transceiver unit, transceiver, or transceiver device.

[0273] Optionally, the devices in transceiver 930 used to implement the receiving function can be considered as receiving modules, and the devices in transceiver 930 used to implement the transmitting function can be considered as transmitting modules. That is, transceiver 930 includes a receiver and / or a transmitter. A transceiver may sometimes be called a transceiver unit, transceiver module, or transceiver circuit, etc. A receiver may sometimes be called a receiver unit, receiving module, or receiving circuit, etc. A transmitter may sometimes be called a transmitter, transmitting module, or transmitting circuit, etc.

[0274] Processor 910 is used to perform the above Figure 5 The terminal-side processing actions in the illustrated embodiment. Transceiver 930 is used to perform the above-described actions. Figure 5 The embodiment shown illustrates the transmit / receive operations on the terminal side. Alternatively, the processor 910 is used to perform the above-described... Figure 5 The network-side processing actions in the illustrated embodiment. Transceiver 930 is used to perform the above-described actions. Figure 5 The example shown illustrates the network-side send and receive operations.

[0275] When the communication device 900 is a chip, the chip includes a processor and a transceiver. The transceiver can be an input / output circuit or a communication interface. The processor can be a processing module integrated on the chip, a microprocessor, or an integrated circuit. In the above method embodiments, the terminal's transmitting operation can be understood as the chip's output, and the terminal's receiving operation can be understood as the chip's input. Similarly, in the above method embodiments, the access network device's transmitting operation can be understood as the chip's output, and the access network device's receiving operation can be understood as the chip's input.

[0276] This application also provides a computer-readable storage medium storing a computer program or instructions for implementing the methods executed by a terminal or access network device in the above-described method embodiments.

[0277] For example, when the computer program is executed by a computer, it enables the computer to implement the method performed by the terminal or access network device in the above method embodiments.

[0278] This application also provides a computer program product containing a program or instructions, which, when executed by a computer, causes the computer to implement the method executed by the terminal or access network device in the above method embodiments.

[0279] This application also provides a communication system, which includes the terminal and the access network device described in the above embodiments. The terminal is used to perform some or all of the operations performed by the terminal in the above method embodiments, and the access network device is used to perform some or all of the operations performed by the access network device in the above method embodiments.

[0280] This application also provides a chip device, including a processor, for calling a computer program or computer instructions stored in the memory, so that the processor executes the above-described... Figure 5 The method provided in the illustrated embodiment.

[0281] In one possible implementation, the input of the chip device corresponds to the above. Figure 5 The receiving operation in the illustrated embodiment corresponds to the output of the chip device described above. Figure 5 The sending operation in the illustrated embodiment.

[0282] Optionally, the processor is coupled to the memory via an interface.

[0283] Optionally, the chip device may also include a memory in which computer programs or computer instructions are stored.

[0284] It is understood that the processor in the embodiments of this application may 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), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0285] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in an access network device or terminal. The processor and storage medium can also exist as discrete components in the access network device or terminal.

[0286] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0287] 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.

[0288] 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.

Claims

1. A communication method, characterized in that, include: Receive a perception measurement configuration, the perception measurement configuration indicating information about the perception target and perception measurement events associated with the perception target; The sensing measurement distances between the sensing target and the first and second sensing nodes are obtained respectively, and the sensing measurement distances are used to determine the sensing measurement results; Determine whether the perception measurement event is satisfied based on the perception measurement results.

2. The method according to claim 1, characterized in that, The sensing measurement distance is used to determine the sensing measurement result, including: The sensing measurement result is the sum of the sensing measurement distance between the sensing target and the first sensing node, and the sensing measurement distance between the sensing target and the second sensing node.

3. The method according to claim 2, characterized in that, The perception target includes a first perception target and a second perception target; The step of determining whether the perception measurement event is satisfied based on the perception measurement results includes: If the first condition is met, determine whether the entry condition for the sensing measurement event is met; or, If the second condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the first condition is |d2-d1|+Hys1<Thresh1, and the duration is greater than or equal to a given duration T1; the second condition is |d2-d1|-Hys2>Thresh2, and the duration is greater than or equal to a given duration T2; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys1 is a first hysteresis value; Thresh1 is a first threshold; Hys2 is a second hysteresis value; and Thresh2 is a second threshold.

4. The method according to claim 2, characterized in that, The sensing target includes a first sensing target and a second sensing target; determining whether the sensing measurement event is satisfied based on the sensing measurement results includes: If the third condition is met, determine whether the entry condition for the sensing measurement event is met; or, If the fourth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the third condition is |d2-d1|-Hys3>Thresh3, and the duration is greater than or equal to the given duration T3; the fourth condition is |d2-d1|+Hys4<Thresh4, and the duration is greater than or equal to the given duration T4; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys3 is the third hysteresis value; Thresh3 is the third threshold; Hys4 is the fourth hysteresis value; and Thresh4 is the fourth threshold.

5. The method according to claim 1, characterized in that, The sensing measurement distance is used to determine the sensing measurement result, including: The sensing measurement result is the ranging accuracy of the sensing target; The ranging accuracy of the perceived target is related to the deviation between the perceived distance and the actual distance of the perceived target, or the ranging accuracy of the perceived target is related to the bandwidth and the signal-to-noise ratio of the perceived signal.

6. The method according to claim 5, characterized in that, The step of determining whether the perception measurement event is satisfied based on the perception measurement result includes: If the fifth condition is met, then the entry condition for the sensing measurement event is determined to be met; or, If the sixth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the fifth condition is P + Hys5 > Thresh5, and the duration is greater than or equal to the given duration T5; the sixth condition is P - Hys6 < Thresh6, and the duration is greater than or equal to the given duration T6; where P is the ranging accuracy of the perceived target, Hys5 is the fifth hysteresis value, Thresh5 is the fifth threshold, Hys6 is the sixth hysteresis value, and Thresh6 is the sixth threshold.

7. The method according to claim 5, characterized in that, The step of determining whether the perception measurement event is satisfied based on the perception measurement result includes: If the seventh condition is met, then the entry condition for the sensing measurement event is determined to be satisfied; or, If the eighth condition is met, then the departure condition for the perceived measurement event is determined to be satisfied. Wherein, the seventh condition is P - Hys7 < Thresh7, and the duration is greater than or equal to the given duration T7; the eighth condition is P + Hys8 > Thresh8, and the duration is greater than or equal to the given duration T8; where P is the ranging accuracy of the perceived target, Hys7 is the seventh hysteresis value, Thresh7 is the seventh threshold, Hys8 is the eighth hysteresis value, and Thresh8 is the eighth threshold.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: If the aforementioned sensing and measurement event is met, a measurement report is sent; The measurement report indicates the sensing measurement results and / or the comparison results of the sensing measurement results with the threshold.

9. The method according to claim 8, characterized in that, The sensing target includes a first sensing target and a second sensing target; the sensing measurement result indicates one or more of the following information: The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target; Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

10. The method according to any one of claims 1-9, characterized in that, The information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

11. A communication method, characterized in that, include: Determine the perception measurement configuration, which indicates information about the perceived target and perception measurement events associated with the perceived target; The perception measurement event is determined to be satisfied based on the perception measurement result, and the perception measurement result is determined based on the perception measurement distance, which is the perception measurement distance between the perception target and the first perception node and the second perception node, respectively. Send the aforementioned sensing measurement configuration.

12. The method according to claim 11, characterized in that, The method further includes: Receive measurement reports; The measurement report indicates the sensing measurement results and / or the comparison results of the sensing measurement results with the threshold.

13. The method according to claim 12, characterized in that, The sensing target includes a first sensing target and a second sensing target; the sensing measurement result indicates one or more of the following information: The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target; Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

14. The method according to any one of claims 11-13, characterized in that, The information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

15. A communication device, characterized in that, include: A transceiver unit is configured to receive a sensing measurement configuration, wherein the sensing measurement configuration indicates information about a sensing target and sensing measurement events associated with the sensing target; The processing unit is configured to acquire the sensing measurement distances between the sensing target and the first sensing node and the second sensing node, respectively, and the sensing measurement distances are used to determine the sensing measurement results; The processing unit is used to determine whether the sensing measurement event is satisfied based on the sensing measurement result.

16. The apparatus according to claim 15, characterized in that, The sensing measurement distance is used to determine the sensing measurement result, including: The sensing measurement result is the sum of the sensing measurement distance between the sensing target and the first sensing node, and the sensing measurement distance between the sensing target and the second sensing node.

17. The apparatus according to claim 16, characterized in that, The sensing target includes a first sensing target and a second sensing target; when determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit is specifically used for: If the first condition is met, the entry condition for the sensing measurement event is determined to be met; or, If the second condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the first condition is |d2-d1|+Hys1<Thresh1, and the duration is greater than or equal to a given duration T1; the second condition is |d2-d1|-Hys2>Thresh2, and the duration is greater than or equal to a given duration T2; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys1 is a first hysteresis value; Thresh1 is a first threshold; Hys2 is a second hysteresis value; and Thresh2 is a second threshold.

18. The apparatus according to claim 16, characterized in that, The sensing target includes a first sensing target and a second sensing target; when determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit is specifically used for: If the third condition is met, the entry condition for the sensing measurement event is determined to be met; or, If the fourth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the third condition is |d2-d1|-Hys3>Thresh3, and the duration is greater than or equal to the given duration T3; the fourth condition is |d2-d1|+Hys4<Thresh4, and the duration is greater than or equal to the given duration T4; d1 is the sum of the sensing measurement distance between the first sensing target and the first sensing node, and the sensing measurement distance between the first sensing target and the second sensing node; d2 is the sum of the sensing measurement distance between the second sensing target and the first sensing node, and the sensing measurement distance between the second sensing target and the second sensing node; Hys3 is the third hysteresis value; Thresh3 is the third threshold; Hys4 is the fourth hysteresis value; and Thresh4 is the fourth threshold.

19. The apparatus according to claim 15, characterized in that, The sensing measurement distance is used to determine the sensing measurement result, including: The sensing measurement result is the ranging accuracy of the sensing target; The ranging accuracy of the perceived target is related to the deviation between the perceived distance and the actual distance of the perceived target, or the ranging accuracy of the perceived target is related to the bandwidth and the signal-to-noise ratio of the perceived signal.

20. The apparatus according to claim 19, characterized in that, When determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit is specifically used for: If the fifth condition is met, the entry condition for the perception measurement event is determined to be met; or, If the sixth condition is met, then the departure condition of the perceived measurement event is determined to be satisfied; Wherein, the fifth condition is P + Hys5 > Thresh5, and the duration is greater than or equal to the given duration T5; the sixth condition is P - Hys6 < Thresh6, and the duration is greater than or equal to the given duration T6; where P is the ranging accuracy of the perceived target, Hys5 is the fifth hysteresis value, Thresh5 is the fifth threshold, Hys6 is the sixth hysteresis value, and Thresh6 is the sixth threshold.

21. The apparatus according to claim 19, characterized in that, When determining whether the sensing measurement event is satisfied based on the sensing measurement result, the processing unit is specifically used for: If the seventh condition is met, the entry condition for the perception measurement event is determined to be met; or, If the eighth condition is met, then the departure condition for the perceived measurement event is determined to be satisfied. Wherein, the seventh condition is P - Hys7 < Thresh7, and the duration is greater than or equal to the given duration T7; the eighth condition is P + Hys8 > Thresh8, and the duration is greater than or equal to the given duration T8; where P is the ranging accuracy of the perceived target, Hys7 is the seventh hysteresis value, Thresh7 is the seventh threshold, Hys8 is the eighth hysteresis value, and Thresh8 is the eighth threshold.

22. The apparatus according to any one of claims 15-21, characterized in that, The transceiver unit is also used for: If the aforementioned sensing and measurement event is met, a measurement report is sent; The measurement report indicates the sensing measurement results and / or the comparison results of the sensing measurement results with the threshold.

23. The apparatus according to claim 22, characterized in that, The sensing measurement results indicate one or more of the following information: The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target; Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

24. The apparatus according to any one of claims 15-23, characterized in that, The information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

25. A communication device, characterized in that, include: A processing unit is configured to determine a sensing measurement configuration, the sensing measurement configuration indicating information about a sensing target and sensing measurement events associated with the sensing target; The perception measurement event is determined to be satisfied based on the perception measurement result, and the perception measurement result is determined based on the perception measurement distance, which is the perception measurement distance between the perception target and the first perception node and the second perception node, respectively. A transceiver unit is used to transmit the sensing measurement configuration.

26. The apparatus according to claim 25, characterized in that, The transceiver unit is also used for: Receive measurement reports; The measurement report indicates the sensing measurement results and / or the comparison results of the sensing measurement results with the threshold.

27. The apparatus according to claim 26, characterized in that, The sensing measurement results indicate one or more of the following information: The bistatic distance of the first sensing target, the bistatic distance of the second sensing target, the difference between the bistatic distance of the first sensing target and the bistatic distance of the second sensing target, or the ranging accuracy of the sensing target; Wherein, the bibase distance of the first sensing target is the sum of the sensing measurement distance between the first sensing target and the first sensing node and the sensing measurement distance between the first sensing target and the second sensing node, and the bibase distance of the second sensing target is the sum of the sensing measurement distance between the second sensing target and the first sensing node and the sensing measurement distance between the second sensing target and the second sensing node.

28. The apparatus according to any one of claims 25-27, characterized in that, The information of the sensing target includes the identifier of the sensing target or the identifier of the sensing area where the sensing target is located.

29. A communication device, characterized in that, It includes units or modules for implementing the method as described in any one of claims 1-10, or includes units or modules for implementing the method as described in any one of claims 11-14.

30. A communication device, characterized in that, Includes a processor for executing computer programs or instructions to cause the communication device to implement the method as described in any one of claims 1-10, or to cause the communication device to implement the method as described in any one of claims 11-14.

31. A communication device, characterized in that, The communication device includes a processor and a transceiver, the transceiver being used to send and receive information, and the processor being used to execute a computer program or instructions to cause the communication device to implement the method as described in any one of claims 1-10, or to cause the communication device to implement the method as described in any one of claims 11-14; or... The device includes a processor and an interface circuit. The interface circuit is used to receive signals from other communication devices besides the communication device and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device. The processor is used to execute computer programs or instructions to cause the communication device to implement the method as described in any one of claims 1-10, or to cause the communication device to implement the method as described in any one of claims 11-14; or... It includes a processor and a memory, the processor being configured to invoke a computer program stored in the memory, causing the communication device to implement the method as described in any one of claims 1-10, or the processor being configured to implement the method as described in any one of claims 11-14.

32. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1-10, or implement the method as described in any one of claims 11-14.

33. A computer program product, characterized in that, Includes computer program code, which, when run on a computer, implements the method of any one of claims 1-10, or implements the method of any one of claims 11-14.

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