Communication method and apparatus

Abstract

A communication method and apparatus, relating to the technical field of communications. In the method, for a sensing service, a sensing measurement quantity is defined to evaluate sensing quality, and on this basis, high / low-frequency band selection is performed, so that when sensing is performed in a high-frequency band and the sensing measurement quantity is greater than or equal to a sensing signal quality threshold, sensing is continued in the high-frequency band, thereby achieving high-quality sensing; and when sensing is performed in the high-frequency band and the sensing measurement quantity is less than the sensing signal quality threshold, sensing is performed in a low-frequency band, thereby increasing a sensing coverage range. This high-frequency and low-frequency collaboration mode helps to improve sensing performance.

Description

Communication methods and devices

[0001] This application claims priority to Chinese Patent Application No. 202411751972.4, filed on November 28, 2024, entitled "Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0003] With the development and advancement of communication technology, in future cellular networks, base stations will not only be able to interconnect people and things, but will also have sensing capabilities. Specifically, transmitting nodes (such as base stations) can send sensing signals, and receiving nodes (such as terminals) can receive the echo signals of these sensing signals to detect targets and estimate the speed, distance, angle, movement path, shape, and size of the detected targets.

[0004] Generally, communication focuses on the transmission path of communication signals from the transmitting node to the receiving node, while sensing focuses on the transmission path of sensing signals from the transmitting node to the detected target, and from the detected target to the receiving node. In communication, a terminal located in the center of a cell typically has good communication channel quality, but for sensing, its sensing performance may be poor. This is because the transmission path distance from the transmitting node to the detected target and then to the receiving node may still be relatively long, resulting in high transmission path loss, low received signal power, and degraded sensing quality. Therefore, improving sensing performance has become one of the most pressing issues to be addressed. Summary of the Invention

[0005] This application provides a communication method and apparatus that are beneficial for improving sensing performance.

[0006] 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.

[0007] Firstly, this application provides a communication method that can be applied to a first communication device, such as 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). In this method, the first communication device acquires sensing measurements, wherein the sensing measurements indicate the signal quality of the sensing signal, and these sensing measurements are used to determine the frequency band used for sensing services from N frequency bands, where N is an integer greater than or equal to 2.

[0008] Optionally, in one implementation, both the sensing measurement function and the sensing frequency band selection function can be performed by the first communication device. That is, when the first communication device measures the sensing measurement quantity, it can further determine the frequency band for the sensing service from N frequency bands based on the sensing measurement quantity. Optionally, in another implementation, the sensing measurement function can be performed by the first communication device, and the sensing frequency band selection function can be performed by the second communication device. Therefore, when the first communication device measures the sensing measurement quantity, it can further send the sensing measurement quantity to the second communication device so that the second communication device can determine the frequency band for the sensing service from N frequency bands based on the received sensing measurement quantity. Optionally, when selecting the frequency band for the sensing service, if the sensing measurement quantity is greater than or equal to a sensing measurement quantity threshold (or a sensing signal quality threshold), a higher frequency band can be selected from the N frequency bands as the frequency band for the sensing service; if the sensing measurement quantity is less than the sensing signal quality threshold, a lower frequency band can be selected from the N frequency bands as the frequency band for the sensing service. Optionally, the case of "equal to" in this application can be combined with "greater than" as shown above, or it can be combined with "less than". For example, when the sensed measurement is greater than the sensed signal quality threshold, a higher frequency band is selected from N frequency bands as the frequency band for the sensed service; when the sensed measurement is less than or equal to the sensed signal quality threshold, a lower frequency band is selected from N frequency bands as the frequency band for the sensed service.

[0009] In this application embodiment, for sensing services, sensing quality is evaluated by defining sensing measurement quantities, and high / low frequency bands are selected based on this. This allows for the continued use of high-frequency bands for sensing when sensing is performed in a high-frequency band and the sensing measurement quantity is greater than or equal to the sensing signal quality threshold, in order to achieve high-quality sensing. When sensing is performed in a high-frequency band and the sensing measurement quantity is less than the sensing signal quality threshold, low-frequency bands are used for sensing to increase the sensing coverage. In other words, this application improves sensing performance through high-low frequency coordination.

[0010] In one possible implementation, the sensing measurement indicates the signal quality of the sensing signal, including:

[0011] The sensing measurement indicates the signal quality of the sensing signal in the sensing area.

[0012] In this implementation, by defining a specific indicator of the signal quality of the sensing signal in the sensing area, the accuracy of the sensing measurement is improved, which in turn improves the accuracy of subsequent sensing frequency band selection, thus contributing to further sensing performance.

[0013] In one possible implementation, the signal quality of the sensing signal in the sensing area includes one or more of the following:

[0014] Range image reference signal received power, range image received signal strength indication, range image reference signal received quality, or range image signal interference-to-noise ratio;

[0015] Wherein, the distance image reference signal received power is the average received signal power within the sensing distance range, the distance image received signal strength indication is the total received power of all resource units within the sensing distance range, the distance image reference signal received quality is the ratio of F times the distance image reference signal received power to the distance image received signal strength indication, where F is the number of resource units, and the distance image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing distance range to the average noise within the sensing distance range; wherein the sensing distance range is associated with the distance range between the first communication device and the sensing area, and the distance range between the second communication device and the sensing area.

[0016] In one possible implementation, the method further includes: sending a first request and receiving a first response; wherein the first request includes location information of the sensing area, and the first response includes information on the distance range between the second communication device and the sensing area.

[0017] In this implementation, the first communication device interacts with the second communication device to obtain information about the distance range between the second communication device and the sensing area. This helps the first communication device estimate the sensing distance range, thereby improving the estimation accuracy of the sensing measurement.

[0018] In one possible implementation, the location information of the sensing area indicates location coordinates or a location range.

[0019] In one possible implementation, the method further includes: sending information about the sensed measurement.

[0020] In this implementation, when the sensing measurement function is executed by the first communication device and the sensing frequency band selection function is executed by the second communication device, the first communication device can further send the sensing measurement quantity to the second communication device after obtaining the sensing measurement quantity, so that the second communication device can determine the frequency band for sensing services from N frequency bands based on the received sensing measurement quantity, which is highly operable.

[0021] In one possible implementation, the method further includes:

[0022] Based on the sensing measurements obtained from the N frequency bands respectively, a frequency band for the sensing service is determined from the N frequency bands.

[0023] In this implementation, when both the sensing measurement function and the sensing frequency band selection function are executed by the first communication device, the first communication device can, based on the sensing measurement quantities obtained in the N frequency bands respectively, further determine the frequency band for sensing services from the N frequency bands, which is easy to implement.

[0024] In one possible implementation, the N frequency bands include a first frequency band; the method further includes:

[0025] Obtain N-1 first thresholds, wherein the N-1 first thresholds are sensing signal quality thresholds;

[0026] Based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, a frequency band for the sensing service is determined from the N frequency bands.

[0027] In this implementation, when both the sensing measurement function and the sensing frequency band selection function are executed by the first communication device, the first communication device can, after measuring the sensing measurement quantity, further determine the frequency band for sensing services from N frequency bands based on acquiring N-1 first thresholds and the sensing measurement quantity measured in the first frequency band, which is simple to implement.

[0028] In one possible implementation, N equals 2, the N frequency bands include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band;

[0029] The step of determining the frequency band for the sensing service from the N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band includes:

[0030] If the sensed measurement is greater than the first threshold, the frequency band used for the sensed service is determined to be the first frequency band; or,

[0031] If the sensed measurement is less than or equal to the first threshold, the frequency band used for the sensed service is determined to be the second frequency band.

[0032] In this implementation, when sensing is performed in the high-frequency band (i.e., the first frequency band) and the sensed measurement is greater than or equal to the sensed signal quality threshold, the high-frequency band is continued to be used for sensing to achieve high-quality sensing. When the sensed measurement in the high-frequency band is less than the sensed signal quality threshold, the low-frequency band (i.e., the second frequency band) is used for sensing to increase the sensed coverage. This high-low frequency coordination helps to improve the sensed performance.

[0033] In one possible implementation, the method further includes:

[0034] Acquire communication measurement quantities, wherein the communication measurement quantities are the communication signal quality measured in the first frequency band;

[0035] The frequency bands used for communication services are determined from M frequency bands based on M-1 second thresholds and the communication measurement quantities. The M frequency bands include the M-1 frequency bands and the first frequency band. The M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2.

[0036] In this implementation, when sensing services and communication services coexist, the first communication device can select both the sensing frequency band and the communication frequency band. Optionally, the sensing service and the communication service can share the same frequency band, or the frequency bands for the sensing service and the communication service can be selected independently.

[0037] In one possible implementation, the method further includes:

[0038] The frequency bands used for the sensing service and the communication service are determined according to the service priority, and the frequency bands used for the sensing service and the communication service are the same frequency band.

[0039] In this implementation, when sensing services and communication services can share the same frequency band, the frequency band used for the sensing services and communication services can be determined according to the service priority, which is highly operable.

[0040] In one possible implementation, determining the frequency bands for the sensing service and the communication service based on service priority includes:

[0041] When the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band for both the sensing service and the communication service, wherein the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; or,

[0042] When the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band for both the sensing service and the communication service. The frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold.

[0043] In this implementation, when sensing services and communication services share the same frequency band, the selection of that frequency band is based on the high-priority service. In other words, the frequency band corresponding to the high-priority service is used as the frequency band shared by the sensing service and the communication service. This implementation method, which takes into account the needs of high-priority services, is more in line with actual needs.

[0044] In one possible implementation, both M and N are equal to 2, the M frequency bands and the N frequency bands each include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; the method further includes:

[0045] If the sensed measurement is greater than the first threshold and the communication measurement is greater than the second threshold, then the frequency band used for the sensed service and the communication service is determined to be the first frequency band; or,

[0046] If the sensing measurement is less than or equal to the first threshold, and / or the communication measurement is less than or equal to the second threshold, the frequency band used for the sensing service and the communication service is determined to be the second frequency band.

[0047] In this implementation, when M and N frequency bands are the same (M=N=2), and these two frequency bands are the first frequency band (i.e., high-frequency band) and the second frequency band (i.e., low-frequency band), respectively, if both sensing and communication measurements select the high-frequency band, then the final selected frequency band is determined to be the high-frequency band. This is beneficial for improving both communication and sensing performance. Conversely, if different frequency bands are selected based on sensing and communication measurements, or if both are low-frequency bands, then the final selected frequency band is determined to be the low-frequency band. This helps ensure coverage performance.

[0048] In one possible implementation, the method further includes:

[0049] Receive signal quality threshold information; wherein the signal quality threshold information indicates information of the N-1 first thresholds and / or information of the M-1 second thresholds.

[0050] In this implementation, when both the sensing measurement function and the sensing frequency band selection function are executed by the first communication device, the second communication device can configure signal quality threshold information to the first communication device to facilitate the first communication device in performing sensing frequency band selection, which offers high operability. Optionally, the signal quality threshold information may also be defined, such as predefined by the protocol, and is not limited thereto.

[0051] In one possible implementation, the method further includes:

[0052] Receive information about the frequency bands used by sensing services.

[0053] In this implementation, when the sensing measurement function is executed by the first communication device and the sensing frequency band selection function is executed by the second communication device, after determining the frequency band used for the sensing service, the second communication device can further send the information of the finally determined frequency band used for the sensing service to the first communication device, so that the first communication device can perform the sensing service with the second communication device based on the received frequency band.

[0054] Secondly, this application provides a communication method that can be applied to a second communication device. For example, the second communication device 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 access network device's functions. In this method, the second communication device acquires a sensing measurement quantity, wherein the sensing measurement quantity indicates the signal quality of the sensing signal. This sensing measurement quantity is used to determine the frequency band used for sensing services from N frequency bands, where N is an integer greater than or equal to 2. Here, the second communication device acquiring the sensing measurement quantity can be understood as receiving information about the sensing measurement quantity. That is, the sensing measurement function can be executed in the first communication device, and the sensing frequency band selection function can be executed in the second communication device. Therefore, given the sensing measurement quantity obtained by the first communication device, the first communication device can send the sensing measurement quantity to the second communication device so that the second communication device can determine the frequency band used for sensing services from the N frequency bands based on the received sensing measurement quantity. This approach of defining sensing metrics to evaluate sensing quality and selecting high / low frequency bands based on this helps improve sensing performance.

[0055] In one possible implementation, the sensing measurement indicates the signal quality of the sensing signal, including:

[0056] The sensing measurement indicates the signal quality of the sensing signal in the sensing area.

[0057] In one possible implementation, the signal quality of the sensing signal in the sensing area includes one or more of the following:

[0058] Range image reference signal received power, range image received signal strength indication, range image reference signal received quality, or range image signal interference-to-noise ratio;

[0059] Wherein, the distance image reference signal received power is the average received signal power within the sensing distance range, the distance image received signal strength indication is the total received power of all resource units within the sensing distance range, the distance image reference signal received quality is the ratio of F times the distance image reference signal received power to the distance image received signal strength indication, where F is the number of resource units, and the distance image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing distance range to the average noise within the sensing distance range; wherein the sensing distance range is associated with the distance range between the first communication device and the sensing area, and the distance range between the second communication device and the sensing area.

[0060] In one possible implementation, the method further includes: receiving a first request and sending a first response. The first request includes location information of the sensing area, and the first response includes information about the distance range between the second communication device and the sensing area.

[0061] In one possible implementation, the location information of the sensing area indicates location coordinates or a location range.

[0062] In one possible implementation, acquiring the sensed measurement includes receiving information about the sensed measurement.

[0063] In one possible implementation, the method further includes:

[0064] Based on the sensing measurements obtained from the N frequency bands respectively, a frequency band for the sensing service is determined from the N frequency bands.

[0065] In one possible implementation, the N frequency bands include a first frequency band; the method further includes:

[0066] Obtain N-1 first thresholds, wherein the N-1 first thresholds are sensing signal quality thresholds;

[0067] Based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, a frequency band for the sensing service is determined from the N frequency bands.

[0068] In one possible implementation, N equals 2, the N frequency bands include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; determining the frequency band for the sensing service from the N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band includes:

[0069] If the sensed measurement is greater than the first threshold, the frequency band used for the sensed service is determined to be the first frequency band; or,

[0070] If the sensed measurement is less than or equal to the first threshold, the frequency band used for the sensed service is determined to be the second frequency band.

[0071] In one possible implementation, the method further includes:

[0072] Acquire communication measurement quantities, wherein the communication measurement quantities are the communication signal quality measured in the first frequency band;

[0073] The frequency bands used for communication services are determined from M frequency bands based on M-1 second thresholds and the communication measurement quantities. The M frequency bands include the M-1 frequency bands and the first frequency band. The M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2.

[0074] In one possible implementation, the method further includes:

[0075] The frequency bands used for the sensing service and the communication service are determined according to the service priority, and the frequency bands used for the sensing service and the communication service are the same frequency band.

[0076] In one possible implementation, determining the frequency bands for the sensing service and the communication service based on service priority includes:

[0077] When the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band for both the sensing service and the communication service, wherein the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; or,

[0078] When the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band for both the sensing service and the communication service. The frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold.

[0079] In one possible implementation, both M and N are equal to 2, the M frequency bands and the N frequency bands each include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; the method further includes:

[0080] If the sensed measurement is greater than the first threshold and the communication measurement is greater than the second threshold, then the frequency band used for the sensed service and the communication service is determined to be the first frequency band; or,

[0081] If the sensing measurement is less than or equal to the first threshold, and / or the communication measurement is less than or equal to the second threshold, the frequency band used for the sensing service and the communication service is determined to be the second frequency band.

[0082] In one possible implementation, the method further includes:

[0083] Transmit signal quality threshold information;

[0084] The signal quality threshold information indicates the information of the N-1 first thresholds and / or the information of the M-1 second thresholds.

[0085] In one possible implementation, the method further includes:

[0086] Send information about the frequency bands used by the sensing service.

[0087] 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.

[0088] 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.

[0089] Optionally, the communication device further includes a transceiver for sending and receiving information.

[0090] 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.

[0091] In one possible design, the communication device may be a terminal in the first aspect described above, or any implementation thereof, or a device containing the terminal, or a device contained in the terminal, such as a chip or chip system; or, the communication device may be a network device in the second aspect described above, or any implementation thereof, or a device containing the network device, or a device contained in the network device, such as a chip or chip system.

[0092] In some possible designs, when the device is a chip system, it can be composed of chips or contain chips and other discrete components.

[0093] Fifthly, this application provides a communication device comprising one or more processors, which implement, via logic circuits or executable code instructions, any of the methods described in the first or second aspects, or any possible implementation thereof.

[0094] 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.

[0095] 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.

[0096] The aforementioned communication device may be a terminal, a communication module in a terminal, or a chip in a terminal that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0097] 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.

[0098] 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.

[0099] 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 installed to perform the methods described in the examples above. The memory may be integrated within the chip or located outside the chip.

[0100] 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.

[0101] The processing circuitry can be all or part of the processing circuitry in one or more processors, or one or more processors.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] Ninthly, this application provides a communication system that may include a terminal and an access network device. The terminal is used to perform the method shown in the first aspect or any possible implementation thereof. The access network device is used to perform the method shown in the second aspect or any possible implementation thereof. Attached Figure Description

[0106] Figure 1A is a schematic diagram of the architecture of a communication system used in an embodiment of this application;

[0107] Figure 1B is another schematic diagram of the communication system used in the embodiments of this application;

[0108] Figure 2 is a schematic diagram of the architecture of the O-RAN system provided in this application;

[0109] Figure 3 is a schematic diagram of the network element function division and protocol layer structure of an O-RAN device provided in this application;

[0110] Figure 4 is a schematic diagram of the communication signal transmission path and the sensing signal transmission path provided in the embodiments of this application;

[0111] Figure 5 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0112] Figure 6 is a schematic diagram of the signal strength of the echo signal provided in an embodiment of this application;

[0113] Figure 7 is another flowchart illustrating the communication method provided in an embodiment of this application;

[0114] Figure 8 is a schematic diagram of the structure of a possible communication device provided in an embodiment of this application;

[0115] Figure 9 is a schematic diagram of the structure of a possible communication device provided in an embodiment of this application;

[0116] Figure 10 is a schematic diagram of the structure of a possible communication device provided in an embodiment of this application. Detailed Implementation

[0117] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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 is determined solely based on A; B can also be determined based on A and / or other information.

[0124] To better understand the embodiments of this application, the system architecture involved in the embodiments of this application will be described first below:

[0125] 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.

[0126] Please refer to Figure 1A, which is a schematic diagram of the architecture of the communication system applied in the embodiments of this application. It should be noted that Figure 1A is a possible, non-limiting system schematic diagram. As shown in Figure 1A, 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 the Internet 300. RAN 100 includes at least one RAN node (110a and 110b in Figure 1A, collectively referred to as 110) and at least one terminal (120a-120j in Figure 1A, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1A). Terminal 120 is wirelessly connected to RAN node 110. RAN node 110 is connected to core network 200 wirelessly or via a wired connection. The core network elements in core network 200 and RAN nodes 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 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 means. Figure 1A is only a schematic diagram; this communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Each device may also include different functional units, which are not shown in Figure 1A.

[0127] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 100 can also be an open RAN (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.

[0128] RAN node 110, sometimes also referred to as a radio 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 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, in Figure 1A, network element 120i can be a helicopter or drone, which can be configured as a mobile base station. For terminals 120j accessing RAN 100 through network element 120i, network element 120i is a base station; but for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes both referred to as communication devices. For example, in Figure 1A, network elements 110a and 110b can be understood as communication devices with base station functions, and network elements 120a-120j can be understood as communication devices with terminal functions.

[0129] 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. RAN node 110 can be a macro base station (as shown in Figure 1A, 110a), a micro base station or indoor station (as shown in Figure 1A, 110b), a relay node or donor node, or a radio controller in a CRAN scenario. Optionally, RAN node 110 can also be a server, a wearable device, a 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 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). In this application, RAN node 110 can also be a logical node, logical module, or software that can implement all or part of the functions of RAN node 110.

[0130] 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 set up 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).

[0131] 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.

[0132] For example, please refer to Figure 2, which is a schematic diagram of the architecture of the O-RAN system provided in this application. Figure 2 is only a schematic diagram, and the O-RAN system may also include other components besides those shown in Figure 2. As shown in Figure 2, the access network device (e.g., it may be an eNB, gNB, or next-generation access network device) communicates with the core network elements in the CN through a backhaul link and communicates with the terminal through the air interface.

[0133] 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.

[0134] Figure 3 illustrates a schematic diagram of the network element function division and protocol layer structure of an O-RAN device. In some examples, the CU 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, it defines the signaling procedures of F1. The F1 interface supports the control plane F1-C and the user plane F1-U.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] A terminal can be a device or module that accesses the aforementioned communication system and has 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, as shown in Figure 1B, the terminal may also contain a module that implements sensing functions (hereinafter referred to as a sensing module). This module can be a new module or an extension of the functions (e.g., sensing functions) of an existing module. For example, the communication module may be extended 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 perception module is used to support / implement perception functions. Optionally, the perception module may also be called a perception function processor, etc., without limitation.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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.

[0151] 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.

[0152] 1. Sensing signals

[0153] 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.

[0154] 2. Echo signal

[0155] Echo signal refers to the electromagnetic feedback signal generated by electromagnetic waves (in this embodiment, the sensing signal) passing through the sensing target, such as transmission, scattering, and reflection.

[0156] 3. Perceived target

[0157] The sensed 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 sensed target can be an active target or a passive target. An active target is one that can actively emit signals, such as a mobile terminal or a car, while a passive target is one that cannot actively emit signals, such as mountains or buildings. The sensed target can feed back electromagnetic waves to the network-side device. The sensed target can also be called a sensing target, a detected target, a sensed object, a sensed device, etc., and this application does not limit the terminology used in its embodiments.

[0158] 4. Sensing area

[0159] 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.

[0160] 5. High-frequency band and low-frequency band

[0161] High-frequency bands can be understood as bands with high center frequencies (generally with large bandwidth), such as frequency range 2 (FR2), like 24.25 GHz to 52.6 GHz. Low-frequency bands can be understood as bands with low center frequencies (generally with smaller bandwidth), such as frequency range 1 (FR1), like 410 MHz to 7125 MHz. It should be noted that the high-frequency and low-frequency bands described in this application are relative concepts. For example, if there are two frequency bands, namely band 1 and band 2, where band 1 is higher than band 2 (or the center frequency of band 1 is higher than the center frequency of band 2), then band 1 can be considered a high-frequency band, and band 2 a low-frequency band.

[0162] In communications, terminals located at the center of a cell typically enjoy better communication channel quality. However, for sensing, their sensing quality may be poor because the transmission paths of communication and sensing signals differ. Generally, as shown in Figure 4, communications focus on the communication signal transmission path from the transmitting node to the receiving node, while sensing focuses on the sensing signal transmission path from the transmitting node to the detected target, and the sensing signal transmission path (or echo signal transmission path) from the detected target to the receiving node. For communications, when the distance between the transmitting and receiving nodes is relatively small, the communication path loss is low, the received signal power is high, and the communication channel quality is good. However, for sensing, the transmission path distance from the transmitting node to the detected target and then to the receiving node may still be relatively large. In this case, the sensing transmission path loss is high, the received signal power is low, and the sensing quality deteriorates.

[0163] Based on this, this application proposes a communication method and apparatus for sensing services. By defining sensing measurement quantities to evaluate sensing quality, and selecting high / low frequency bands accordingly, it enables continued use of the high-frequency band for sensing when sensing is performed in a high-frequency band and the sensing measurement quantity is greater than or equal to a sensing signal quality threshold, thus achieving high-quality sensing. Conversely, when sensing is performed in a high-frequency band and the sensing measurement quantity is less than the sensing signal quality threshold, a low-frequency band is used to increase sensing coverage. In short, this application improves sensing performance through high- and low-frequency coordination.

[0164] 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 signal quality threshold information below) is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be indicated. For example, the information to be indicated can be directly indicated, where the information to be indicated itself or its index is mentioned. Alternatively, the information to be indicated 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 indication of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing the indication overhead to some extent.

[0165] 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 communication device and a second communication device as examples of the execution entities for interactive illustration. Optionally, the first communication device and the second communication device may also be the same communication device. When the first communication device and the second communication device are the same communication device, the interaction between the first communication device and the second communication device in the embodiments of this application can be understood as the internal implementation of the communication device. Specifically, the first communication device may be a first communication equipment or a module (e.g., a circuit, chip, or chip system, such as a sensing function processor) within the first communication equipment. Similarly, the second communication device may be a second communication equipment or a module (e.g., a circuit, chip, or chip system, such as a sensing function processor) within the second communication equipment.

[0166] Optionally, the first communication device can be a terminal or an access network device, and the second communication device can also be a terminal or an access network device. Specifically, when the first communication device is a terminal, the second communication device can also be a terminal or an access network device; when the first communication device is an access network device, the second communication device can also be a terminal or an access network device. For ease of understanding, the embodiments of this application are mainly understood with the first communication device as the terminal and the second communication device as the access network device. Optionally, the method executed by the access network device in this application can be implemented by the access network device or a module (e.g., circuit, chip, or chip system, such as a sensing function processor), or a logic node, logic module, or software that can implement all or part of the functions of the access network device. The method executed by the terminal in this application can also be implemented by the communication / processing module in the terminal or the 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 / processing functions. Optionally, the above-mentioned sensing function processor can also be called a sensing module, used to support / implement sensing functions.

[0167] Please refer to Figure 5, which is a flowchart illustrating a communication method provided in an embodiment of this application. As shown in Figure 5, the communication method may include the following steps:

[0168] S501, The first communication device acquires the sensed measurement.

[0169] The sensing measurement indicates the signal quality of the sensing signal, or it may be referred to as the sensing measurement indicating the signal quality of the sensing signal measured at the receiving node (or receiving end), or the sensing measurement indicating the echo signal quality corresponding to the sensing signal. More specifically, the sensing measurement can be the signal quality of the sensing signal corresponding to the sensing area. For example, the signal quality of the sensing signal corresponding to the sensing area includes one or more of the following: range image reference signal received power (e.g., range image reference signal received power (RSRP)), range image received signal strength indicator (e.g., range image received signal strength indicator (RSSI)), range image reference signal received quality (e.g., range image reference signal received quality (RSRQ)), or range image signal interference plus noise ratio (e.g., range image signal to interference plus noise ratio (SINR)). The range image reference signal received power is the average received signal power within the sensing range; the range image received signal strength indication is the total received power of all resource units within the sensing range; the range image reference signal reception quality is the ratio of F times the range image reference signal received power to the range image received signal strength indication, where F is the number of resource units; and the range image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing range to the average noise within the sensing range. For example, the calculation process for the range image reference signal received power (or average received signal power within the sensing range) can be as follows: first, calculate the square of the signal strength of the echo signal within the sensing range, and then take the average value. For example, the calculation process for the average noise within the sensing range can be as follows: obtain the signal strength of the portion of the echo signal within the sensing range whose signal strength is less than a given threshold, calculate the square of the signal strength of this portion of the echo signal, and then take the average value.

[0170] The aforementioned sensing distance range is associated with / related to the first distance range and the second distance range. Here, the first distance range is the distance range between the first communication device and the sensing area, and the second distance range is the distance range between the second communication device and the sensing area. For example, taking the sensing distance range as [D1, D2], the first distance range as [a1, b1], and the second distance range as [a2, b2] as an example, one possible understanding of the association / relatedness between the sensing distance range and the first and second distance ranges is that D1 = a1 + a2, D2 = b1 + b2. For example, please refer to Figure 6, which is a schematic diagram of the signal strength of the echo signal provided in an embodiment of this application. As shown in Figure 6, the horizontal axis represents distance, for example, the unit of distance can be meters (m), and the vertical axis represents signal strength (which can be simply referred to as strength), for example, the unit of signal strength can be dB. Figure 6 shows the signal strength of the echo signal (or the echo signal corresponding to the sensing signal) received by the receiving node within the entire distance range that the receiving node can support, where the distance interval [D1, D2] is the sensing distance range, and the signal in the rectangle in Figure 6 is the signal strength of the echo signal within the sensing distance range.

[0171] In one possible implementation, the first communication device can send a first request to the second communication device, the first request including location information of the sensing area. Correspondingly, the second communication device receives the first request from the first communication device, and then calculates the distance range from itself to the sensing area based on the location information of the sensing area carried in the first request. Typically, after the second communication device calculates the distance range between itself and the sensing area, it can send a first response to the first communication device, the first response including information / indication information about the distance range between itself and the sensing area. Optionally, the second response can directly indicate the distance range between itself and the sensing area; for example, the information / indication information about the distance range can be a specific value of the distance range, or it can be an index / identifier (ID) of the distance range, where one index / identifier corresponds to a specific value of the distance range. Optionally, the second response can also indirectly indicate the distance range between itself and the sensing area, for example, by indicating other information that is related to the distance range between itself and the sensing area. Accordingly, the first communication device receives a second response from the second communication device. Therefore, the first communication device can determine the sensing distance range based on the distance range between the second communication device and the sensing area indicated by the received second response, and the distance range between the first communication device and the sensing area calculated by the first communication device.

[0172] Optionally, the location information of the aforementioned sensing area can be location coordinates or a location range. For example, when the location information of the sensing area is represented by location coordinates, these coordinates can be, for example, the coordinates of the center of the sensing area, the coordinates of the centroid of the sensing area, or the coordinates of the location of the detected target, etc., without limitation. The representation of the location range is usually related to the shape of the sensing 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; when the region of interest is circular, its location range can be determined by the location coordinates of the center and the radius r; and 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.

[0173] In another possible implementation, the first communication device can also estimate the sensing range in other ways. For example, the first communication device can estimate the sensing range by statistically analyzing the time from when the second communication device sends the sensing signal to when the first communication device receives the echo signal of the sensing signal. Since the sensing signal may be transmitted, scattered, or reflected at different locations of the sensed target, the first communication device may receive multiple echo signals, with different reception times for each echo signal. Therefore, the first communication device can obtain multiple distance values ​​based on the time difference between the reception time of the echo signal and the transmission time of the sensing signal, as well as the speed of light, and then determine the sensing range based on these multiple distance values. For example, taking three distance values ​​as an example, distance value 1 = (reception time t1 of the echo signal - transmission time t0 of the sensing signal) × speed of light, distance value 2 = (reception time t2 of the echo signal - transmission time t0 of the sensing signal) × speed of light, and distance value 3 = (reception time t3 of the echo signal - transmission time t0 of the sensing signal) × speed of light. Where time point t1 is earlier than time point t2, and time point t2 is earlier than time point t3, therefore distance value 1 < distance value 2 < distance value 3, where distance value 1 is usually the distance corresponding to the first diameter (e.g., line of sight (LOS)). The first access device can determine the range of distance values ​​greater than a certain distance threshold as the sensing distance range. For example, the distance threshold can be distance value 1, therefore, the sensing distance range can be [distance value 2, distance value 3].

[0174] Understandably, in this application, the measurement / acquisition of sensing quantities by the first communication device in a certain frequency band (e.g., taking the first frequency band as an example) can be understood as the second communication device transmitting sensing signals in the first frequency band. Correspondingly, the first communication device receives sensing signals from the second communication device in the first frequency band, or, in other words, the first communication device measures sensing signals from the second communication device to obtain sensing quantities.

[0175] S502. The first communication device determines the frequency band for sensing services from N frequency bands based on the sensing measurement.

[0176] N is an integer greater than or equal to 2, such as 2 or 3. In one possible design (i), the aforementioned sensing measurements can be obtained separately in N frequency bands. Therefore, the first communication device determining the frequency band for sensing services from the N frequency bands based on the sensing measurements can be understood as: the first communication device determines the frequency band for sensing services from the N frequency bands based on the sensing measurements obtained separately in the N frequency bands. For example, the first communication device can determine the frequency band corresponding to the largest sensing measurement among the N sensing measurements as the frequency band for sensing services.

[0177] For example, assuming N=2, the two frequency bands are the first frequency band and the second frequency band, with the first frequency band being higher than the second frequency band. The sensed measurement obtained in the first frequency band is called sensed measurement 1, and the sensed measurement obtained in the second frequency band is called sensed measurement 2. Since sensed measurement 1 > sensed signal quality threshold > sensed measurement 2, the first communication device can use the frequency band corresponding to the better sensed measurement as the frequency band for the sensed service; that is, the frequency band used for the sensed service is the first frequency band. Alternatively, assuming the sensed signal quality threshold > sensed measurement 1 > sensed measurement 2, then the first communication device selects the second frequency band as the frequency band for the sensed service.

[0178] For example, assuming N=3, the two frequency bands are the first, second, and third frequency bands, with the first frequency band being higher than the second, and the second frequency band being higher than the third. The sensing measurement obtained in the first frequency band is sensing measurement 1, the sensing measurement obtained in the second frequency band is sensing measurement 2, and the sensing measurement obtained in the third frequency band is sensing measurement 3. Here, sensing measurement 1 > sensing measurement 2 > sensing signal quality threshold > sensing measurement 3. Therefore, the first communication device can use the frequency band corresponding to the maximum sensing measurement as the frequency band for sensing services, i.e., the frequency band used for sensing services is the first frequency band. Optionally, the first communication device can also randomly select a frequency band corresponding to a sensing measurement greater than the sensing signal quality threshold from among the sensing measurements as the frequency band used for sensing services. For example, assuming sensing measurement 1 > sensing measurement 2 > sensing signal quality threshold > sensing measurement 3, then the first communication device can choose either the first or second frequency band for sensing services. Alternatively, assuming that the sensing signal quality threshold > sensing measurement 3 > sensing measurement 2 > sensing measurement 1, then the first communication device selects the third frequency band as the frequency band for sensing services.

[0179] In another possible design (ii), the sensing measurement is obtained by measuring in the first frequency band. This first frequency band is contained within N frequency bands, or it can be said that the N frequency bands include the first frequency band, or that the first frequency band is one of the N frequency bands. In this embodiment, the first frequency band is a high-frequency band, or it can be understood as the currently used frequency band, or it can be understood as the frequency band of the serving cell (or high-frequency cell). Under this design, the terminal can obtain N-1 first thresholds, which are sensing signal quality thresholds. Therefore, the above-mentioned first communication device determining the frequency band for sensing services from N frequency bands based on the sensing measurement can be specifically understood as: the first communication device determines the frequency band for sensing services from N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band. The following uses N=2 and N=3 as examples to illustrate how the first communication device specifically determines the frequency band for sensing services from N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band.

[0180] For example, taking N=2, the two frequency bands include a first frequency band and a second frequency band, with the first frequency band being higher than the second frequency band. Then, if the sensed measurement is greater than a first threshold, the frequency band used for sensing services is determined to be the first frequency band; if the sensed measurement is less than or equal to the first threshold, the frequency band used for sensing services is determined to be the second frequency band. Optionally, the word "equal to" in this application can be combined with "greater than" as shown above, or it can be combined with "less than". For example, if the sensed measurement is greater than or equal to the first threshold, the frequency band used for sensing services is determined to be the first frequency band; if the sensed measurement is less than the first threshold, the frequency band used for sensing services is determined to be the second frequency band. Alternatively, it can be understood that when the sensing measurement obtained in the first frequency band is greater than the first threshold, it indicates that the first communication device is at the edge of the high-frequency cell, so the first communication device chooses to perform sensing in the low-frequency band (i.e., the second frequency band). Conversely, when the sensing measurement obtained in the first frequency band is less than or equal to the first threshold, it indicates that the first communication device is at the near point of the high-frequency cell, so the first communication device chooses to perform sensing in the high-frequency band (i.e., the first frequency band).

[0181] For another example, taking N=3, the three frequency bands include a first frequency band, a second frequency band, and a third frequency band, with the first frequency band higher than the second frequency band, and the second frequency band higher than the third frequency band. Two first thresholds are defined as first threshold 1 and first threshold 2, with first threshold 1 being less than first threshold 2. Therefore, if the perceived measurement is greater than first threshold 2, the frequency band used for sensing services is determined to be the first frequency band; if the perceived measurement is greater than or equal to first threshold 1 and less than or equal to first threshold 2, the frequency band used for sensing services is determined to be the second frequency band; and if the perceived measurement is less than first threshold 1, the frequency band used for sensing services is determined to be the third frequency band. Optionally, the term "equal to" in this application can be combined with "greater than" or "less than". For example, if the perceived measurement is greater than or equal to the first threshold 2, the frequency band used for the sensing service is determined to be the first frequency band; if the perceived measurement is greater than the first threshold 1 and less than the first threshold 2, the frequency band used for the sensing service is determined to be the second frequency band; if the perceived measurement is less than or equal to the first threshold 1, the frequency band used for the sensing service is determined to be the third frequency band. Similarly, if the perceived measurement is greater than or equal to the first threshold 2, the frequency band used for the sensing service is determined to be the first frequency band; if the perceived measurement is greater than or equal to the first threshold 1 and less than the first threshold 2, the frequency band used for the sensing service is determined to be the second frequency band; if the perceived measurement is less than the first threshold 1, the frequency band used for the sensing service is determined to be the third frequency band. This application does not limit this.

[0182] Optionally, the embodiments of this application can be applied to scenarios where only sensing services exist, or to scenarios where sensing services and communication services coexist. When only sensing services exist, the first communication device can determine the frequency band used for sensing services according to the aforementioned design method (I) or design method (II). When sensing services and communication services exist simultaneously, the first communication device can also acquire communication measurement quantities, and determine the frequency band used for communication services from M frequency bands based on M-1 second thresholds and communication measurement quantities. The communication measurement quantities are the communication signal quality measured in the first frequency band, the M frequency bands include M-1 frequency bands and the first frequency band, the M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2. Optionally, the first communication device can also determine the frequency band used for communication services from M frequency bands based on the communication measurement quantities measured in the M frequency bands respectively. Optionally, the M frequency bands and N frequency bands involved in the embodiments of this application may have an intersection, or the M frequency bands and N frequency bands may not have an intersection.

[0183] Regarding the specific implementation of the first communication device determining the frequency band for communication services from M frequency bands based on communication measurement quantities measured in M ​​frequency bands (hereinafter referred to as implementation method (1) for ease of description), please refer to the aforementioned description of the first communication device determining the frequency band for sensing services from N frequency bands based on sensing measurement quantities measured in N frequency bands (i.e., design method (I)), which will not be elaborated here. Regarding the specific implementation of the first communication device determining the frequency band for communication services from M frequency bands based on M-1 second thresholds and communication measurement quantities measured in the first frequency band (hereinafter referred to as implementation method (2) for ease of description), please refer to the aforementioned description of the first communication device determining the frequency band for sensing services from N frequency bands based on N-1 first thresholds and sensing measurement quantities measured in the first frequency band (i.e., design method (II)), which will not be elaborated here.

[0184] In some possible scenarios (hereinafter referred to as Scenario 1 for ease of distinction), the frequency band used for sensing services and the frequency band used for communication services can be selected independently. That is, the first communication device uses the aforementioned design method (I) or design method (II) to determine the frequency band used for sensing services, and uses the aforementioned implementation method (1) or implementation method (2) to determine the frequency band used for communication services. The selection of frequency bands for different services does not affect each other. In this Scenario 1, the determined frequency band used for sensing services and the frequency band used for communication services may be the same frequency band or different frequency bands, without limitation.

[0185] In other possible scenarios (hereinafter referred to as Scenario 2 for ease of distinction), the frequency bands used for sensing services and communication services can also be jointly selected, that is, the frequency bands used for sensing services and communication services are the same. For example, in the integrated sensing and communication (ISAC) scenario, sensing services and communication services share the same frequency band.

[0186] For example, in scenario 2, the first communication device can determine the frequency bands used for sensing services and communication services based on service priorities. More specifically, when the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band used for both sensing and communication services, and the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; when the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band used for both sensing and communication services, and the frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold. Optionally, the correlation between the frequency band corresponding to the communication service and the communication measurement quantity and the second threshold can be understood as determining the frequency band corresponding to the communication service (or determining the frequency band used for communication services) using the aforementioned implementation method (2). The correlation between the frequency band corresponding to the sensing service and the sensing measurement quantity and the first threshold can be understood as determining the frequency band corresponding to the sensing service (or determining the frequency band used for sensing services) using the aforementioned design method (ii). Optionally, the frequency band corresponding to the communication service can also be related to the communication measurement quantity. For example, the frequency band corresponding to the communication service can be determined by the aforementioned implementation method (1). The frequency band corresponding to the sensing service can also be related to the sensing measurement quantity. For example, the frequency band corresponding to the sensing service can be determined by the aforementioned design method (a). Optionally, in this example, the size of M and N is not limited. In addition, M frequency bands and N frequency bands may have an intersection, or M frequency bands and N frequency bands may not have an intersection.

[0187] For example, in scenario 2, the first communication device can independently select the frequency band for sensing services and the frequency band for communication services. When the determined frequency bands for sensing services and communication services are different, the first communication device can preferentially select the lower frequency band from the frequency band corresponding to the communication service and the frequency band corresponding to the sensing service to use for both services simultaneously, to ensure coverage performance. Alternatively, the first communication device can preferentially select the higher frequency band from the frequency band corresponding to the communication service and the frequency band corresponding to the sensing service to ensure communication quality or sensing quality. Optionally, in this example, the sizes of M and N are not limited. Furthermore, the M frequency bands and N frequency bands may overlap, or they may not overlap.

[0188] For example, in scenario 2, where M and N are both equal to 2, and both the M and N frequency bands include a first frequency band and a second frequency band, with the first frequency band being higher than the second frequency band, the first communication device can determine the frequency band used for sensing and communication services as the first frequency band when the sensed measurement is greater than a first threshold and the communication measurement is greater than a second threshold. Conversely, when the sensed measurement is less than or equal to the first threshold and / or the communication measurement is less than or equal to the second threshold, the frequency band used for sensing and communication services is determined as the second frequency band. Here, the sensed measurement being less than or equal to the first threshold and / or the communication measurement being less than or equal to the second threshold mainly includes the following three cases: 1. The sensed measurement is greater than the first threshold, and the communication measurement is less than or equal to the second threshold. 2. The sensed measurement is less than or equal to the first threshold, and the communication measurement is greater than the second threshold. 3. The sensed measurement is less than or equal to the first threshold, and the communication measurement is less than or equal to the second threshold. Here, the case of "equal to" can appear in combination with "greater than," or it can appear in combination with "less than," and this application does not limit this.

[0189] Optionally, the N-1 first thresholds and / or M-1 second thresholds in this application can be defined, such as those predefined in the protocol. Alternatively, the N-1 first thresholds and / or M-1 second thresholds in this application can also be configured. For example, the second communication device can send signal quality threshold information to the first communication device, which indicates information about the N-1 first thresholds and / or M-1 second thresholds. Optionally, the type of the first threshold is related to the type of the sensed measurement, and the type of the second threshold is related to the type of the communication measurement. For example, when the type of the sensed measurement is RSRP, the first threshold is an RSRP threshold. Similarly, when the type of the communication measurement is RSRP, the second threshold is an RSRP threshold.

[0190] Generally, when only sensing services exist, the second communication device can simply indicate the information of the first threshold. When sensing services and communication services coexist, the second communication device can indicate both the information of the first threshold and the information of the second threshold. Taking N-1 first thresholds as an example, when there are multiple first thresholds, the second communication device can directly send the identifiers of the multiple first thresholds and the corresponding values ​​of the multiple first thresholds. Optionally, the identifiers of the multiple first thresholds can be the same identifier or different identifiers, without limitation. This application mainly understands the multiple first thresholds as having the same identifier. Alternatively, the second communication device can also send the identifier of the first threshold, the value of a first threshold as a reference, and the difference between the other first thresholds and the reference first threshold. Taking M-1 second thresholds as an example, when there are multiple second thresholds, the second communication device can directly send the identifiers of the multiple second thresholds and the corresponding values ​​of the multiple second thresholds. Optionally, the identifiers of the multiple second thresholds can be the same identifier or different identifiers, without limitation. This application mainly understands the multiple second thresholds as having the same identifier. Alternatively, the second communication device may also send an identifier of the second threshold, a reference value of the second threshold, and the difference between other second thresholds and the reference second threshold.

[0191] For ease of description, this example uses signal quality threshold information indicating one first threshold and one second threshold, both of which are of type RSRP. As shown in Table 1, the signal quality threshold information may include an identifier for the first threshold (e.g., s-rsrp-Threshold) and its corresponding value V1, and an identifier for the second threshold (e.g., c-rsrp-Threshold) and its corresponding value V2. Optionally, as shown in Table 1, the identifier for the first threshold may also be 1, and the identifier for the second threshold may also be 0. Optionally, the identifier for the first threshold may also be 0, and the identifier for the second threshold may also be 1; there is no limitation.

[0192] Table 1

[0193] Optionally, when there are three first thresholds and three second thresholds, and the values ​​of these three first thresholds and three second thresholds are sent directly, the three first thresholds and three second thresholds can be as shown in Table 2 and Table 3 below, respectively:

[0194] Table 2

[0195] Table 3

[0196] Optionally, when the number of first thresholds is three, and the transmission method of multiple first thresholds is the identification of the first threshold, the value of a reference first threshold, and the difference between the other first thresholds and the reference first threshold, the three first thresholds can be as shown in Table 4 below:

[0197] Table 4

[0198] Similarly, when there are three second thresholds, and the transmission method of multiple second thresholds is the identification of the second threshold, the value of a reference second threshold, and the difference between the other second thresholds and the reference second threshold, the three second thresholds can be as shown in Table 5 below:

[0199] Table 5

[0200] Optionally, the frequency band-related information in this application can be defined, such as predefined by a protocol. Alternatively, the frequency band-related information can also be configured, such as the second communication device sending frequency band-related indication information to the first communication device. Optionally, the frequency band-related information can include frequency point information, subcarrier spacing, bandwidth, etc., and is not limited. For example, taking N=2 as an example, the N frequency bands include a first frequency band and a second frequency band, where the first frequency band is a high-frequency band and the second frequency band is a low-frequency band. The second communication device can send the frequency point information, subcarrier spacing, and bandwidth of the second frequency band to the first communication device.

[0201] In this embodiment, the first communication device performs sensing measurements to obtain a sensing measurement quantity, and selects between high and low frequency bands based on this quantity. This allows for continued high-frequency sensing when sensing is performed in a high-frequency band and the sensing measurement quantity is greater than or equal to a sensing signal quality threshold, thus achieving high-quality sensing. Conversely, when sensing is performed in a high-frequency band and the sensing measurement quantity is less than the sensing signal quality threshold, a low-frequency band is used to increase the sensing coverage. This high-low frequency coordination method is beneficial for improving sensing performance.

[0202] It should be noted that the embodiment corresponding to Figure 5 above mainly describes the implementation method in which both the sensing measurement function and the sensing frequency band selection function are executed in the first communication device.

[0203] Optionally, the sensing measurement function and the sensing frequency band selection function can also be executed on different communication devices. Therefore, the first communication device performing the sensing measurement needs to transmit the measured sensing quantity to the second communication device performing the frequency band selection function. Please refer to Figure 7, which is another schematic flowchart of the communication method provided in an embodiment of this application. As shown in Figure 7, the communication method may include the following steps:

[0204] S701, The first communication device acquires the sensed measurement.

[0205] For an understanding of step S701, please refer to the description of step S501 in the embodiment corresponding to Figure 5 above, which will not be repeated here.

[0206] S702, the first communication device sends information about the sensed measurement quantity to the second communication device. Correspondingly, the second communication device receives the information about the sensed measurement quantity from the first communication device.

[0207] In one implementation, when the sensing measurement acquired by the first communication device is a sensing measurement obtained from measurements in N frequency bands, the first communication device can send information about the sensing measurement obtained from measurements in the N frequency bands to the second communication device. In another implementation, when the sensing measurement acquired by the first communication device is a sensing measurement obtained from measurements in a first frequency band, the first communication device can send information about the sensing measurement obtained from measurements in the first frequency band to the second communication device.

[0208] Optionally, when sensing services and communication services coexist, the first communication device can send sensing measurement information and communication measurement information to the second communication device in addition to sending sensing measurement information. For example, the sensing measurement information sent by the first communication device to the second communication device may include the identifier of the sensing measurement and its corresponding specific value. Optionally, when the number of sensing measurements is multiple (i.e., N > 1), the second communication device can directly send the identifier of the sensing measurement and the corresponding values ​​of the multiple sensing measurements. Alternatively, the second communication device can also send the identifier of the sensing measurement, the value of a reference sensing measurement, and the difference between the other sensing measurements and the reference sensing measurement. Optionally, the arrangement order of the multiple sensing measurements can be sent in order from high to low or from low to high according to the corresponding frequency bands. For example, assuming the first frequency band > the second frequency band > the third frequency band, the sensing measurement obtained from the first frequency band is W11, the sensing measurement obtained from the second frequency band is W12, and the sensing measurement obtained from the third frequency band is W13, then the first communication device can directly send the identifiers of the sensing measurements, W11, W12, and W13. Alternatively, the first communication device may send an identifier of a sensed measurement, a value of a sensed measurement W11 as a reference, and the difference between other sensed measurements and the sensed measurement used as a reference, such as W12-W11 and W13-W11.

[0209] For example, the information of the communication measurement may include the identifier of the communication measurement and its corresponding specific value. Optionally, when there are multiple communication measurements (i.e., M > 1), the second communication device may directly send the identifier of the communication measurement and the corresponding values ​​of the multiple communication measurements. Alternatively, the second communication device may also send the identifier of the communication measurement, the value of a reference communication measurement, and the difference between the other communication measurements and the reference communication measurement. Optionally, the arrangement order of the multiple communication measurements may be sent in order from high to low or from low to high according to the corresponding frequency bands. For example, assuming the first frequency band > the second frequency band > the third frequency band, the communication measurement obtained from the first frequency band is W21, the communication measurement obtained from the second frequency band is W22, and the communication measurement obtained from the third frequency band is W23, then the first communication device may directly send the identifiers of the communication measurements, W21, W22, and W23. Alternatively, the first communication device may send an identifier of a communication measurement, a reference value of a communication measurement W21, and the difference between other communication measurements and the reference communication measurement, such as W22-W21 and W23-W21.

[0210] Optionally, in addition to sensing measurement information and / or communicating measurement information, the first communication device may also send identification information of the first communication device to the second communication device, wherein the identification information of one device corresponds to one communication device.

[0211] Taking the case where both the type of sensing measurement and the type of communication measurement are RSRP, and both the sensing measurement and the communication measurement are obtained by measurement in the first frequency band as an example, as shown in Table 6 below, the information of the sensing measurement includes the identifier of the sensing measurement (e.g., s-rsrp) and the corresponding specific value W1, and the information of the communication measurement includes the identifier of the communication measurement (e.g., c-rsrp) and the corresponding specific value W2.

[0212] Optionally, as shown in Table 6, the identifier for sensing measurements can also be 1, and the identifier for communication measurements can also be 0. Optionally, the identifier for sensing measurements can also be 0, and the identifier for communication measurements can also be 1; there is no limitation.

[0213] Table 6

[0214] Optionally, when there are three sensing measurements and three communication measurements, and the values ​​of these three sensing measurements and three communication measurements are sent directly, the three sensing measurements and three communication measurements can be as shown in Table 7 and Table 8 below, respectively:

[0215] Table 7

[0216] Table 8

[0217] Optionally, when the number of sensing measurements is three, and the transmission method of multiple sensing measurements is the identification of the sensing measurement, the value of a sensing measurement used as a reference, and the difference between the other sensing measurements and the sensing measurement used as a reference, the three sensing measurements can be as shown in Table 9 below:

[0218] Table 9

[0219] Similarly, when there are three communication measurements, and the transmission method of multiple communication measurements is the identifier of the communication measurement, the value of a reference communication measurement, and the difference between the other communication measurements and the reference communication measurement, the three communication measurements can be shown in Table 10 below:

[0220] Table 10

[0221] S703. The second communication device determines the frequency band for sensing services from N frequency bands based on the sensing measurement.

[0222] For an understanding of step S703, please refer to the description of step S502 in the embodiment corresponding to Figure 5 above. The difference is that the execution subject of the frequency band selection function is different, which will not be elaborated here.

[0223] Optionally, when the sensing measurement acquired by the first communication device is a sensing measurement obtained from N frequency bands respectively, the frequency band-related information can be configured, such as the second communication device sending frequency band-related indication information to the first communication device. Alternatively, the frequency band-related information can also be defined, such as predefined by the protocol. For example, taking N=2 as an example, the N frequency bands include a first frequency band and a second frequency band, where the first frequency band is a high-frequency band and the second frequency band is a low-frequency band. The second communication device can send the frequency point information, subcarrier spacing, and bandwidth of the second frequency band to the first communication device.

[0224] Optionally, after step S703, step S704 may also be included:

[0225] S704. The second communication device sends information about the frequency band used for sensing services to the first communication device. Correspondingly, the first communication device receives information about the frequency band used for sensing services from the second communication device.

[0226] Optionally, when sensing services and communication services coexist, and the frequency bands used for sensing services and communication services are selected independently, the first communication device may send information about the frequency band used for sensing services, as well as information about the frequency band used for communication services, to the second communication device. Optionally, when sensing services and communication services coexist, and the sensing services and communication services share a frequency band, then the frequency band used for sensing services sent by the second communication device to the first communication device can be used for both communication services and sensing services.

[0227] Understandably, when the first communication device learns of the frequency band used for sensing services, it can perform sensing services with the second communication device based on the designated frequency band. Optionally, if the frequency band is also used for communication services, the first communication device can also perform communication services with the second communication device based on the frequency band.

[0228] In this embodiment, the first communication device performs sensing measurements to obtain sensing data and sends the sensing data to the second communication device. This allows the second communication device to select high / low frequency bands based on the sensing data. Specifically, when sensing is performed in a high-frequency band and the sensing data is greater than or equal to a sensing signal quality threshold, the high-frequency band is used to achieve high-quality sensing. Conversely, when sensing is performed in a high-frequency band and the sensing data is less than the sensing signal quality threshold, a low-frequency band is used to increase the sensing coverage. This high-low frequency coordination method is beneficial for improving sensing performance.

[0229] Optionally, the embodiments shown in Figure 5 or Figure 7 can also be applied to the O-RAN architecture. It should be understood that in the O-RAN architecture, the access network device involved in Figure 5 or Figure 7 can be replaced by CU (e.g., CU-CP or CU-UP) or DU or RU, etc.

[0230] The communication device provided in this application will now be described in detail with reference to Figures 8 to 10.

[0231] 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.

[0232] Figures 8 to 10 are schematic diagrams of possible communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the first and second communication devices in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. For ease of understanding, this section mainly uses the first communication device as a terminal and the second communication device as an access network device (e.g., a base station) as an example for illustrative explanation. For example, the first communication device can be one of the terminals 120a-120j shown in Figure 1A, and the second communication device can be RAN node 110a or 110b shown in Figure 1A. Optionally, the first communication device can also be a module (e.g., a chip) applied to the terminal, and the second communication device can also be a module (e.g., a chip) applied to the access network device.

[0233] As shown in Figure 8, the communication device 800 includes a processing unit 810 and a transceiver unit 820. The transceiver unit 820 and the processing unit 810 can be software, hardware, or a combination of both. Optionally, the communication device 800 may further include a storage unit 830 for storing device program code and / or data, not shown in Figure 8.

[0234] The transceiver unit 820 can implement sending and / or receiving functions. Optionally, the transceiver unit 820 can also be called a communication unit or an acquisition unit, etc. The transceiver unit 820 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 820 can be used to receive information sent by other devices, and can also be used to send information to other devices.

[0235] The communication device 800 is used to implement the functions of the terminal-side communication device in the method embodiments shown in Figure 5 or Figure 7. For example, the terminal-side communication device can be a terminal or a communication module in the terminal, or a module, circuit, or chip in the terminal responsible for communication and / or sensing functions. Alternatively, the communication device 800 is used to implement the functions of the network-side device in the method embodiments shown in Figure 5 or Figure 7. For example, the network-side device can be an access network device, a module (e.g., a circuit, chip, or chip system) in the access network device, or a logic node, logic module, or software that can implement all or part of the functions of the access network device. Optionally, the module used to implement the sensing function can be called a sensing module or a sensing function processor. The sensing module can be a new module, or it can be an extension of the functions (e.g., sensing functions) of an existing module. For example, the communication module can be extended 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.

[0236] When the communication device 800 is used to implement the function of the first communication device (e.g., a terminal) in the method embodiment shown in FIG5 or FIG7:

[0237] Processing unit 810 is configured to acquire sensing measurements, which indicate the signal quality of the sensing signal. Optionally, in one design, processing unit 810 is configured to determine a frequency band for sensing services from N frequency bands based on the sensing measurements, where N is an integer greater than or equal to 2. In another design, transceiver unit 820 is configured to transmit information about the sensing measurements.

[0238] In one possible implementation, the sensing measurement indicates the signal quality of the sensing signal, including:

[0239] The sensing measurement indicates the signal quality of the sensing signal in the sensing area.

[0240] In one possible implementation, the signal quality of the sensing signal in the sensing area includes one or more of the following:

[0241] Range image reference signal received power, range image received signal strength indication, range image reference signal received quality, or range image signal interference-to-noise ratio;

[0242] Wherein, the distance image reference signal received power is the average received signal power within the sensing distance range, the distance image received signal strength indication is the total received power of all resource units within the sensing distance range, the distance image reference signal received quality is the ratio of F times the distance image reference signal received power to the distance image received signal strength indication, where F is the number of resource units, and the distance image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing distance range to the average noise within the sensing distance range; wherein the sensing distance range is associated with the distance range between the first communication device and the sensing area, and the distance range between the second communication device and the sensing area.

[0243] In one possible implementation, the transceiver unit 820 is used for:

[0244] Send a first request and receive a first response; wherein the first request includes location information of the sensing area, and the first response includes information on the distance range between the second communication device and the sensing area.

[0245] In one possible implementation, the location information of the sensing area indicates location coordinates or a location range.

[0246] In one possible implementation, the processing unit 810 is specifically used for:

[0247] Based on the sensing measurements obtained from the N frequency bands respectively, a frequency band for the sensing service is determined from the N frequency bands.

[0248] In one possible implementation, the N frequency bands include a first frequency band; the processing unit 810 is specifically used for:

[0249] Obtain N-1 first thresholds, wherein the N-1 first thresholds are sensing signal quality thresholds;

[0250] Based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, a frequency band for the sensing service is determined from the N frequency bands.

[0251] In one possible implementation, N equals 2, the N frequency bands include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; when determining the frequency band for the sensing service from the N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, the processing unit 810 is specifically used for:

[0252] If the sensed measurement is greater than the first threshold, the frequency band used for the sensed service is determined to be the first frequency band; or,

[0253] If the sensed measurement is less than or equal to the first threshold, the frequency band used for the sensed service is determined to be the second frequency band.

[0254] In one possible implementation, the processing unit 810 is further configured to:

[0255] Acquire communication measurement quantities, wherein the communication measurement quantities are the communication signal quality measured in the first frequency band;

[0256] The frequency bands used for communication services are determined from M frequency bands based on M-1 second thresholds and the communication measurement quantities. The M frequency bands include the M-1 frequency bands and the first frequency band. The M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2.

[0257] In one possible implementation, the processing unit 810 is further configured to:

[0258] The frequency bands used for the sensing service and the communication service are determined according to the service priority, and the frequency bands used for the sensing service and the communication service are the same frequency band.

[0259] In one possible implementation, when determining the frequency bands for the sensing service and the communication service based on service priority, the processing unit 810 is specifically used for:

[0260] When the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band for both the sensing service and the communication service, wherein the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; or,

[0261] When the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band for both the sensing service and the communication service. The frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold.

[0262] In one possible implementation, both M and N are equal to 2, the M frequency bands and the N frequency bands each include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; the processing unit 810 is further configured to:

[0263] If the sensed measurement is greater than the first threshold and the communication measurement is greater than the second threshold, then the frequency band used for the sensed service and the communication service is determined to be the first frequency band; or,

[0264] If the sensing measurement is less than or equal to the first threshold, and / or the communication measurement is less than or equal to the second threshold, the frequency band used for the sensing service and the communication service is determined to be the second frequency band.

[0265] In one possible implementation, the transceiver unit 820 is further configured to:

[0266] Receive signal quality threshold information; wherein the signal quality threshold information indicates information of the N-1 first thresholds and / or information of the M-1 second thresholds.

[0267] In one possible implementation, the transceiver unit 820 is further configured to: receive information about the frequency band used by the sensing service.

[0268] In one possible design, when the communication device 800 is a terminal or a communication module within a terminal, the functionality of the processing unit 810 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 820 can be implemented by transceiver circuitry.

[0269] In one possible design, when the communication device 800 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 810 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 820 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0270] When the communication device 800 is used to implement the function of the second communication device (e.g., access network device) in the method embodiment shown in FIG5 or FIG7:

[0271] The transceiver unit 820 is used to acquire sensing measurements, wherein the sensing measurements indicate the signal quality of the sensing signal.

[0272] The processing unit 810 is configured to determine the frequency band for sensing services from N frequency bands based on the sensing measurement, where N is an integer greater than or equal to 2.

[0273] In one possible implementation, the sensed measurement indicates the signal quality of the sensed signal, including:

[0274] The sensing measurement indicates the signal quality of the sensing signal in the sensing area.

[0275] In one possible implementation, the signal quality of the sensing signal in the sensing area includes one or more of the following:

[0276] Range image reference signal received power, range image received signal strength indication, range image reference signal received quality, or range image signal interference-to-noise ratio;

[0277] Wherein, the distance image reference signal received power is the average received signal power within the sensing distance range, the distance image received signal strength indication is the total received power of all resource units within the sensing distance range, the distance image reference signal received quality is the ratio of F times the distance image reference signal received power to the distance image received signal strength indication, where F is the number of resource units, and the distance image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing distance range to the average noise within the sensing distance range; wherein the sensing distance range is associated with the distance range between the first communication device and the sensing area, and the distance range between the second communication device and the sensing area.

[0278] In one possible implementation, the transceiver unit 820 is further configured to:

[0279] Receive the first request and send the first response;

[0280] The first request includes location information of the sensing area, and the first response includes information on the distance range between the second communication device and the sensing area.

[0281] In one possible implementation, the location information of the sensing area indicates location coordinates or a location range.

[0282] In one possible implementation, the processing unit 810 is further configured to:

[0283] Based on the sensing measurements obtained from the N frequency bands respectively, a frequency band for the sensing service is determined from the N frequency bands.

[0284] In one possible implementation, the N frequency bands include a first frequency band; the processing unit 810 is further configured to:

[0285] Obtain N-1 first thresholds, wherein the N-1 first thresholds are sensing signal quality thresholds;

[0286] Based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, a frequency band for the sensing service is determined from the N frequency bands.

[0287] In one possible implementation, N equals 2, the N frequency bands include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; when determining the frequency band for the sensing service from the N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, the processing unit 810 is specifically used for:

[0288] If the sensed measurement is greater than the first threshold, the frequency band used for the sensed service is determined to be the first frequency band; or,

[0289] If the sensed measurement is less than or equal to the first threshold, the frequency band used for the sensed service is determined to be the second frequency band.

[0290] In one possible implementation, the processing unit 810 is further configured to:

[0291] Acquire communication measurement quantities, wherein the communication measurement quantities are the communication signal quality measured in the first frequency band;

[0292] The frequency bands used for communication services are determined from M frequency bands based on M-1 second thresholds and the communication measurement quantities. The M frequency bands include the M-1 frequency bands and the first frequency band. The M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2.

[0293] In one possible implementation, the processing unit 810 is further configured to:

[0294] The frequency bands used for the sensing service and the communication service are determined according to the service priority, and the frequency bands used for the sensing service and the communication service are the same frequency band.

[0295] In one possible implementation, when determining the frequency bands for the sensing service and the communication service based on service priority, the processing unit 810 is specifically used for:

[0296] When the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band for both the sensing service and the communication service, wherein the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; or,

[0297] When the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band for both the sensing service and the communication service. The frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold.

[0298] In one possible implementation, both M and N are equal to 2, the M frequency bands and the N frequency bands each include the first frequency band and the second frequency band, and the first frequency band is higher than the second frequency band; the processing unit 810 is further configured to:

[0299] If the sensed measurement is greater than the first threshold and the communication measurement is greater than the second threshold, then the frequency band used for the sensed service and the communication service is determined to be the first frequency band; or,

[0300] If the sensing measurement is less than or equal to the first threshold, and / or the communication measurement is less than or equal to the second threshold, the frequency band used for the sensing service and the communication service is determined to be the second frequency band.

[0301] In one possible implementation, the transceiver unit 820 is further configured to:

[0302] Transmit signal quality threshold information; wherein the signal quality threshold information indicates information of the N-1 first thresholds and / or information of the M-1 second thresholds.

[0303] In one possible implementation, the transceiver unit 820 is further configured to: transmit information about the frequency band used by the sensing service.

[0304] For a more detailed description of the processing unit 810 and the transceiver unit 820 described above, please refer to the relevant descriptions in the method embodiments shown in Figure 5 or Figure 7.

[0305] 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.

[0306] 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.

[0307] In one example, storage unit 830 may include random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory and / or registers, etc.

[0308] As shown in Figure 9, the communication device 900 includes a processor 910, and optionally an interface circuit 920. The processor 910 and the interface circuit 920 are coupled to each other. It is understood that the interface circuit 920 can be a transceiver or an input / output interface. Optionally, the communication device 900 may also include a memory 930 for storing computer programs or instructions executed by the processor 910, or storing input data required by the processor 910 to execute instructions, or storing data generated by the processor 910 after executing computer programs or instructions.

[0309] When the communication device 900 is used to implement the method shown in FIG5 or FIG7, the processor 910 is used to implement the function of the processing unit 810, and the interface circuit 920 is used to implement the function of the transceiver unit 820.

[0310] 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.

[0311] 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.

[0312] As shown in Figure 10, the communication device includes a processor 1010, a memory 1020, and a transceiver 1030. The processor 1010 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 1020 can store computer program code, software programs, and data. The transceiver 1030 includes a transmitter 1031, a receiver 1032, radio frequency circuitry (not shown in Figure 10), and an antenna 1033.

[0313] The processor 1010 can also be called a processing unit, processing board, processing module, or processing device. The transceiver 1030 can also be called a transceiver unit, transceiver, or transceiver device.

[0314] Optionally, the device in transceiver 1030 used to implement the receiving function can be considered a receiving module, and the device in transceiver 1030 used to implement the transmitting function can be considered a transmitting module. That is, transceiver 1030 includes a receiver and / or a transmitter. A transceiver may also be called a transceiver unit, transceiver module, or transceiver circuit, etc. A receiver may also be called a receiver unit, receiving module, or receiving circuit, etc. A transmitter may also be called a transmitter, transmitting module, or transmitting circuit, etc.

[0315] Processor 1010 is used to execute terminal-side processing operations in the embodiments shown in FIG. 5 or FIG. 7. Transceiver 1030 is used to execute terminal-side transmission and reception operations in the embodiments shown in FIG. 5 or FIG. 7. Alternatively, processor 1010 is used to execute network-side processing operations in the embodiments shown in FIG. 5 or FIG. 7. Transceiver 1030 is used to execute network-side transmission and reception operations in the embodiments shown in FIG. 5 or FIG. 7.

[0316] When the communication device 1000 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.

[0317] 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.

[0318] 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.

[0319] 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.

[0320] 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.

[0321] 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 method provided in the embodiments shown in FIG5 or FIG7 above.

[0322] In one possible implementation, the input of the chip device corresponds to the receiving operation in the embodiment shown in FIG5 or FIG7 above, and the output of the chip device corresponds to the transmitting operation in the embodiment shown in FIG5 or FIG7 above.

[0323] Optionally, the processor is coupled to the memory via an interface.

[0324] Optionally, the chip device may also include a memory in which computer programs or computer instructions are stored.

[0325] It is understood that the processor in the embodiments of this application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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: Acquire sensing measurements, which indicate the signal quality of the sensing signal; The sensing measurement quantity is used to determine the frequency band for sensing services from N frequency bands, where N is an integer greater than or equal to 2.

2. The method according to claim 1, characterized in that, The sensing measurement indicates the signal quality of the sensing signal, including: The sensing measurement indicates the signal quality of the sensing signal in the sensing area.

3. The method according to claim 2, characterized in that, The signal quality of the sensing signal in the sensing area includes one or more of the following: Range image reference signal received power, range image received signal strength indication, range image reference signal received quality, or range image signal interference-to-noise ratio; Wherein, the distance image reference signal received power is the average received signal power within the sensing distance range, the distance image received signal strength indication is the total received power of all resource units within the sensing distance range, the distance image reference signal received quality is the ratio of F times the distance image reference signal received power to the distance image received signal strength indication, where F is the number of resource units, and the distance image signal interference-to-noise ratio is the ratio of the average received signal power within the sensing distance range to the average noise within the sensing distance range; wherein the sensing distance range is associated with the distance range between the first communication device and the sensing area, and the distance range between the second communication device and the sensing area.

4. The method according to claim 3, characterized in that, The method further includes: Send the first request and receive the first response; or, Receive the first request and send the first response; The first request includes location information of the sensing area, and the first response includes information on the distance range between the second communication device and the sensing area.

5. The method according to claim 4, characterized in that, The location information of the sensing area indicates the location coordinates or location range.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: sending information about the sensed measurement; or... The acquisition of the sensed measurement includes: receiving information about the sensed measurement.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: Based on the sensing measurements obtained from the N frequency bands respectively, a frequency band for the sensing service is determined from the N frequency bands.

8. The method according to any one of claims 1-6, characterized in that, The N frequency bands include a first frequency band; the method further includes: Obtain N-1 first thresholds, wherein the N-1 first thresholds are sensing signal quality thresholds; Based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band, a frequency band for the sensing service is determined from the N frequency bands.

9. The method according to claim 8, characterized in that, The N equals 2, and the N frequency bands include the first frequency band and the second frequency band, wherein the first frequency band is higher than the second frequency band; The step of determining the frequency band for the sensing service from the N frequency bands based on the N-1 first thresholds and the sensing measurement obtained in the first frequency band includes: If the sensed measurement is greater than the first threshold, the frequency band used for the sensed service is determined to be the first frequency band; or, If the sensed measurement is less than or equal to the first threshold, the frequency band used for the sensed service is determined to be the second frequency band.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: Acquire communication measurement quantities, wherein the communication measurement quantities are the communication signal quality measured in the first frequency band; The frequency bands used for communication services are determined from M frequency bands based on M-1 second thresholds and the communication measurement quantities. The M frequency bands include the M-1 frequency bands and the first frequency band. The M-1 second thresholds are communication signal quality thresholds, and M is an integer greater than or equal to 2.

11. The method according to any one of claims 1-10, characterized in that, The method further includes: The frequency bands used for the sensing service and the communication service are determined according to the service priority, and the frequency bands used for the sensing service and the communication service are the same frequency band.

12. The method according to claim 11, characterized in that, The step of determining the frequency bands for the sensing service and the communication service based on service priority includes: When the priority of the communication service is higher than that of the sensing service, the frequency band corresponding to the communication service is determined as the frequency band for both the sensing service and the communication service, wherein the frequency band corresponding to the communication service is related to the communication measurement quantity and the second threshold; or, When the priority of the sensing service is higher than that of the communication service, the frequency band corresponding to the sensing service is determined as the frequency band for both the sensing service and the communication service. The frequency band corresponding to the sensing service is related to the sensing measurement quantity and the first threshold.

13. The method according to claim 10, characterized in that, Both M and N are equal to 2, and both the M frequency bands and the N frequency bands include the first frequency band and the second frequency band, with the first frequency band being higher than the second frequency band; The method further includes: If the sensed measurement is greater than the first threshold and the communication measurement is greater than the second threshold, then the frequency band used for the sensed service and the communication service is determined to be the first frequency band; or, If the sensing measurement is less than or equal to the first threshold, and / or the communication measurement is less than or equal to the second threshold, the frequency band used for the sensing service and the communication service is determined to be the second frequency band.

14. The method according to any one of claims 8-13, characterized in that, The method further includes: Receive signal quality threshold information; or, Transmit signal quality threshold information; The signal quality threshold information indicates the information of the N-1 first thresholds and / or the information of the M-1 second thresholds.

15. A communication device, characterized in that, Includes units or modules for implementing the method as described in any one of claims 1-14.

16. 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 1-14.

17. 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 1-14; 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 1-14; or, It includes a processor and a memory, the processor being used to invoke a computer program stored in the memory, causing the communication device to implement the method as described in any one of claims 1-14.

18. 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 1-14.

19. 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 1-14.

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