Perception method and communication device

Abstract

The embodiment of the invention provides a sensing method and a communication device, relates to the field of sensing communication, and can realize sensing configuration and reporting of terminal equipment in a non-connection state. The method comprises: a first access network device sending a paging message; wherein the paging message is used for paging the terminal equipment belonging to the first sensing packet. And under the condition that paging is completed, the first access network equipment sends first sensing configuration used for executing the sensing task.

Description

Technical Field

[0001] The present application relates to the field of perception communication, and in particular to a perception method and a communication device. Background Art

[0002] In the integration of communication and perception, wireless perception may include three processes: perception capability reporting, perception measurement configuration, and perception measurement reporting. The sensing function (SF) can determine the perception measurement configuration based on the perception capability reported by the terminal device and the access network device, and send it to the terminal device and / or the access network device for perception measurement, or the access network device can determine the perception measurement configuration based on the perception capability reported by the terminal device, and send it to the terminal device for perception measurement, thereby obtaining the perception measurement result. Different perception modes involve different devices in perception.

[0003] In the above wireless perception process, the access network device configures the perception measurement to the terminal device in the connected state through the radio resource control (RRC) reconfiguration message, and cannot configure the terminal device supporting the non-connected state to perform perception. Therefore, how to realize the perception configuration and reporting of the terminal device in the non-connected state has become an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a perception method and a communication device, which can realize the perception configuration and reporting of a terminal device in a non-connected state.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, a perception method is provided, which can be executed by a first access network device, or by a component of the first access network device, such as a processor, a chip, or a chip system of the first access network device, or can be implemented by a logic module or software that can implement all or part of the first access network device, such as a distributed unit (DU) in the first access network device. The method includes: the first access network device sends a paging message. The paging message is used to page a terminal device belonging to a first perception group. When the paging is completed, the first access network device sends a first perception configuration for performing a perception task.

[0007] Based on this communication method, the first access network device can page the terminal devices in the non-connected state belonging to the first perception group through a paging message, and when the paging is completed, the perception configuration is performed for the terminal devices in the non-connected state that meet the paging conditions. In this way, it can not only avoid that all terminal devices with perception capabilities respond to the paging after the paging is initiated, the network connection pressure can be reduced, and the perception configuration efficiency can be improved. Furthermore, by performing perception configuration on the terminal devices in the non-connected state, the terminal devices can perform perception measurements in the non-connected state, which can reduce the energy consumption of the terminal devices and further reduce the network connection pressure.

[0008] In a possible design scheme, the first access network device sends a paging message, which may include: the first access network device receives a first message from an access and mobility management network element. The first message is used to request the first access network device to perform perception configuration for a terminal device belonging to a first perception group. The first access network device sends a paging message according to the first message. Thus, the first access network device can trigger paging of a non-connected terminal device based on the access and mobility management network element, and perform perception configuration on the paged non-connected terminal device, so as to implement perception configuration and reporting of the non-connected terminal device. In an embodiment of the present application, the access and mobility management network element may be an access and mobility management function (AMF).

[0009] In a possible design, the first message and the paging message include information indicating the first perception group, wherein the information of the first perception group may be an identifier or index of the first perception group, or other information indirectly used to indicate the first perception group, which is not limited.

[0010] In a possible design scheme, the perception method provided by the embodiment of the present application may also include: before receiving the first message, the first access network device sends a radio resource control RRC release message to the first terminal device. The RRC release message includes information for indicating the perception group to which the first terminal device belongs, and the perception group to which the first terminal device belongs includes the first perception group. Thus, the first access network device can inform the terminal device of the perception group information of the terminal device when releasing the terminal device to a non-connected state, thereby reducing signaling overhead.

[0011] In a possible design, the first message includes information for indicating an area for performing a sensing task; the first access network device sending a paging message may include: the first access network device determines a paging beam according to the information for indicating an area for performing a sensing task, and sends the paging message through the paging beam. Thus, when sending a paging message, the first access network device may configure a paging beam according to the sensing area information, so that the paged terminal device is located within the sensing area, which can improve the efficiency and flexibility of the sensing configuration.

[0012] In one possible design, the area where the sensing task is performed is covered by the paging beam.

[0013] In a possible design scheme, the first message may also include a second perception configuration, and the second perception configuration is used to indicate a measurement and / or reporting period for performing a perception task within a preset time. Thus, the first access network device can determine a period and / or reporting period for performing a perception task for a non-connected terminal device based on the first message sent by the access and mobility management network element, which can reduce the time for the first access network device to determine a period and / or reporting period for performing a perception task for a non-connected terminal device, thereby improving the efficiency of the perception configuration.

[0014] In one possible design scheme, the second perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurements of periodically performing a perception task, information for indicating reporting of measurement results of periodically performing a perception task, information for indicating a time for performing a perception task, or information for indicating an area for performing a perception task.

[0015] In a possible design scheme, the first access network device sends the first perception configuration for performing the perception task, which may include: the first access network device sends the first perception configuration for performing the perception task according to the second perception configuration.

[0016] In one possible design scheme, the first perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurements for periodically performing a perception task, information for indicating reporting of measurement results for periodically performing a perception task, information for indicating a time for performing a perception task, information for indicating an area for performing a perception task, or information for indicating resources for performing a perception task.

[0017] In a possible design scheme, the first access network device sends a first perception configuration for performing a perception task, which may include: the first access network device receives an RRC recovery request message or an RRC establishment message from the first terminal device. The RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state. The first access network device sends an RRC reconfiguration message or an RRC release message to the first terminal device. The RRC reconfiguration message or the RRC release message includes the first perception configuration. Thus, the first access network device can page the first terminal device back to the connected state to complete the perception configuration of the first terminal device in the non-connected state. After the first terminal device completes the perception configuration, it is released to the non-connected state, so that the terminal device is still perceiving in the non-connected state, which can reduce the energy consumption of the terminal device.

[0018] In a possible design scheme, the first access network device sending a first perception configuration for performing a perception task may include: the first access network device sending a first broadcast message. The first broadcast message includes the first perception configuration. Thus, the first access network device can send the first perception configuration through a broadcast message, so that the first terminal device can remain in a non-connected state to perform perception configuration and perception measurement, which can reduce the energy consumption of the terminal device and reduce the pressure of network connection.

[0019] In a possible design scheme, the perception method provided in the embodiment of the present application may also include: the first access network device sends a first perception signal for performing a perception task. The first access network device receives a second message from the first terminal device. The second message is used to indicate the first terminal device to perform a first perception measurement result of the perception task according to the echo signal corresponding to the first perception signal. Thus, when performing the perception task, the first access network device can send a perception signal to enable the terminal device in a non-connected state to perform a perception measurement.

[0020] In a possible design scheme, the perception method provided by the embodiment of the present application may also include: the first access network device sends a second broadcast message to the first terminal device. The second broadcast message includes information for indicating whether the first terminal device performs the perception task. For example, in a case where the first access network device does not perform paging according to the perception area information, or in a case where the area covered by the paging beam determined by the first access network device according to the perception area information is larger than the perception area within its coverage area, the first access network device can inform the first terminal device through the second broadcast message whether it is in the perception area and whether to perform the perception task, which can reduce useless measurements and reports by the terminal device.

[0021] In a possible design scheme, the perception method provided by the embodiment of the present application may also include: a second broadcast message from the first access network device to the first terminal device. The second broadcast message includes a first identifier, and the first identifier is used to identify that the first terminal device performs a perception task. Thus, for example, in a case where the first access network device does not perform paging according to the perception area information, and the area covered by the paging beam determined by the first access network device according to the perception area information is larger than the perception area within its coverage area, the first access network device can also indicate whether the non-connected UE is located in the perception area and whether to perform perception measurements by whether to carry the first identifier in the broadcast message, so that the terminal device can reduce useless measurements and reports. For example, the first identifier is used to identify the area where the first access network device currently sends the second broadcast message, and the first identifier is used to identify a more finely granular area.

[0022] In a possible design solution, the first perception measurement result may include a first identifier. For example, the first access network device may determine in which area the first terminal device measured the first perception measurement result.

[0023] In a possible design scheme, the perception method provided in the embodiment of the present application may further include: the first access network device sends a third message to the perception network element. The third message includes the first perception measurement result. Thus, the first access network device can send the collected perception measurement results to the perception network element, so that the perception network element can perform statistics and analysis on the perception measurement results.

[0024] In a second aspect, a perception method is provided, which can be executed by a first terminal device, or by a component of the first terminal device, such as a processor, a chip, or a chip system of the first terminal device, or by a logic module or software that can implement all or part of the first terminal device. The method includes: the first terminal device receives a paging message. The paging message is used to page a terminal device belonging to a first perception group. In the case where the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration from a first access network device for performing a perception task.

[0025] In one possible design scheme, the paging message includes information for indicating the first perception group.

[0026] In a possible design scheme, the perception method provided in the embodiment of the present application may also include: before receiving the paging message, the first terminal device receives a radio resource control RRC release message from the first access network device. The RRC release message includes information for indicating the perception group to which the first terminal device belongs, and the perception group to which the first terminal device belongs includes the first perception group.

[0027] In a possible design scheme, when the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from the first access network device, which may include: when the first terminal device belongs to the first perception group, the first terminal device sends an RRC recovery request message or an RRC establishment message to the first access network device. The RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state. The first terminal device receives an RRC reconfiguration message from the first access network device. The RRC reconfiguration message includes the first perception configuration.

[0028] In a possible design scheme, the perception method provided in the embodiment of the present application may also include: after receiving the first perception configuration, the first terminal device receives an RRC release message from the first access network device.

[0029] In a possible design scheme, when the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from the first access network device, which may include: when the first terminal device belongs to the first perception group, the first terminal device sends an RRC recovery request message or an RRC establishment message to the first access network device. The RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state. The first terminal device receives an RRC release message from the access network device. The RRC release message includes the first perception configuration.

[0030] In a possible design, when the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from the first access network device, which may include: when the first terminal device belongs to the first perception group, the first terminal device receives a first broadcast message from the first access network device. The first broadcast message includes the first perception configuration, and the first terminal device remains in a non-connected state.

[0031] In a possible design scheme, the perception method provided in the embodiment of the present application may also include: when in a non-connected state, the first terminal device receives an echo signal corresponding to a first perception signal for performing a perception task according to a first perception configuration. The first terminal device determines a first perception measurement result according to the echo signal corresponding to the first perception signal. The first terminal device sends the first perception measurement result to the first access network device.

[0032] In a possible design scheme, the sensing method provided in the embodiment of the present application may further include: the first terminal device receives a second broadcast message from the first access network device, wherein the second broadcast message includes information for indicating whether the first terminal device performs the sensing task.

[0033] In a possible design scheme, the first terminal device receives an echo signal corresponding to a first perception signal for performing a perception task according to a first perception configuration, which may include: the first terminal device receives a second broadcast message from a first access network device. The second broadcast message includes a first identifier, and the first identifier is used to identify that the first terminal device performs the perception task. The first terminal device receives an echo signal corresponding to the first perception signal for performing the perception task according to the first identifier and the first perception configuration.

[0034] In a possible design solution, the first perception measurement result may include a first identifier.

[0035] In one possible design scheme, the first perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurements for periodically performing a perception task, information for indicating reporting of measurement results for periodically performing a perception task, information for indicating a time for performing a perception task, information for indicating an area for performing a perception task, or information for indicating resources for performing a perception task.

[0036] In a possible design solution, the perception method provided in the embodiment of the present application may further include: the first access network device sends a third message to the perception network element, wherein the third message includes the first perception measurement result.

[0037] Among them, the technical effects of the method described in the second aspect can refer to the technical effects described in the method described in the first aspect, and will not be elaborated on here.

[0038] In a third aspect, a perception method is provided, which can be executed by an access and mobility management network element, or by a component of the access and mobility management network element, such as a processor, chip, or chip system of the access and mobility management network element, or can be implemented by a logic module or software that can implement all or part of the access and mobility management network element. The method includes: the access and mobility management network element receives a fourth message from the perception network element. The fourth message is used to request the access and mobility management network element to instruct at least one access network device to perform perception configuration for a terminal device belonging to a first perception group. The access and mobility management network element sends a first message to the first access network device based on the fourth message. The first message is used to request the first access network device to perform perception configuration for a terminal device belonging to the first perception group, and the first access network device is one of at least one access network device.

[0039] In one possible design scheme, the fourth message includes an identifier of at least one access network device and information for indicating the first perception grouping.

[0040] In a possible design scheme, the fourth message may also include a second perception configuration, where the second perception configuration is used to indicate a measurement and / or reporting period for performing the perception task within a preset time.

[0041] In one possible design scheme, the first message may also include a second perception configuration.

[0042] In one possible design scheme, the second perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurements of periodically performing a perception task, information for indicating reporting of measurement results of periodically performing a perception task, information for indicating a time for performing a perception task, or information for indicating an area for performing a perception task.

[0043] Among them, the technical effects of the method described in the third aspect can refer to the technical effects described in the method described in the first aspect, which will not be elaborated on.

[0044] In a fourth aspect, a perception method is provided, which can be executed by a perception network element, or by a component of the perception network element, such as a processor, chip, or chip system of the perception network element, or can be implemented by a logic module or software that can implement all or part of the perception network element. The method includes: the perception network element sends a fourth message to the access and mobility management network element. The fourth message is used to request the access and mobility management network element to instruct at least one access network device to perform perception configuration for a terminal device belonging to a first perception group. The perception network element receives a third message from the first access network device. The third message includes a first perception measurement result, which is determined by the first terminal device according to an echo signal corresponding to a first perception signal sent by the first access network device for performing a perception task, the first access network device is one of at least one access network device, and the first terminal device is a terminal device belonging to the first perception group.

[0045] In one possible design scheme, the fourth message includes an identifier of at least one access network device and information used to indicate the first perception grouping.

[0046] In a possible design scheme, the fourth message may also include a second perception configuration, where the second perception configuration is used to indicate a measurement and / or reporting period for performing the perception task within a preset time.

[0047] In one possible design scheme, the second perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurements of periodically performing a perception task, information for indicating reporting of measurement results of periodically performing a perception task, information for indicating a time for performing a perception task, or information for indicating an area for performing a perception task.

[0048] Among them, the technical effects of the method described in the fourth aspect can refer to the technical effects described in the method described in the first aspect, and will not be elaborated on here.

[0049] In a fifth aspect, a communication device is provided for implementing the above-mentioned various methods. The communication device may be the first access network device in the above-mentioned first aspect, or the first terminal device in the above-mentioned second aspect, or the access and mobility management network element in the above-mentioned third aspect, or the perception network element in the above-mentioned fourth aspect, or a device including the above-mentioned first access network device, the above-mentioned first terminal device, the above-mentioned access and mobility management network element, or the above-mentioned perception network element, or a device included in the above-mentioned first access network device, the above-mentioned first terminal device, the above-mentioned access and mobility management network element, or the above-mentioned perception network element, such as a chip, or a module or component that implements part or all of the functions of the above-mentioned first access network device, the above-mentioned first terminal device, the above-mentioned access and mobility management network element, or the above-mentioned perception network element. The communication device includes a corresponding module, unit, or means (means) for implementing the method described in any aspect of the above-mentioned first to fourth aspects, and the module, unit, or means may be implemented by hardware, software, or by hardware executing the corresponding software. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0050] In some possible designs, the communication device includes: a processing module and a transceiver module. The transceiver module is used to indicate the transceiver function of the communication device. The processing module is used to perform functions of the communication device other than the transceiver function.

[0051] In a possible design solution, the transceiver module may include a receiving module and a sending module, wherein the sending module is used to implement the sending function of the communication device described in the fifth aspect, and the receiving module is used to implement the receiving function of the communication device described in the fifth aspect.

[0052] In a possible design scheme, the communication device described in the fifth aspect may further include a storage module, which stores a program or instruction. When the processing module executes the program or instruction, the communication device described in the fifth aspect can execute the method described in any one of the first to fourth aspects.

[0053] In a sixth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system). The communication device includes: a processor, configured to implement the functions involved in any one of the first to fourth aspects above.

[0054] In a possible design, the communication device may further include a memory, the memory being used to store necessary program instructions and data. A processor is coupled to the memory, the processor being used to execute a computer program or instruction stored in the memory, so that the communication device executes the method described in any one of the first to fourth aspects.

[0055] In a possible design solution, the communication device described in the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in the sixth aspect to communicate with other communication devices.

[0056] In one possible design, the processor can be integrated with the memory.

[0057] In some possible designs, when the device is a chip system, it can be composed of a chip or include a chip and other discrete devices.

[0058] In a seventh aspect, a communication device is provided, which includes a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices outside the communication device and transmit them to the processor or to send signals from the processor to other communication devices outside the communication device, and the processor being used to implement a method as described in any one of aspects 1 to 4 through a logic circuit or by executing code instructions.

[0059] In an eighth aspect, a communication device is provided, which may be an access network device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the access network device that corresponds one-to-one to the method / operation / step / action described in any one of the first to fourth aspects, or may be capable of being used in combination with the access network device.

[0060] It can be understood that when the communication device provided in any of the fifth aspect or the eighth aspect is a module or component, such as a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0061] In a ninth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any one of the first to fourth aspects above.

[0062] In a tenth aspect, a computer program product comprising instructions is provided, including computer program codes, which, when the computer program codes are executed on a communication device, enable the communication device to execute the method described in any one of the first to fourth aspects above.

[0063] In an eleventh aspect, a communication system is provided, comprising: a communication device for implementing the method described in the first aspect, and a communication device for implementing the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic diagram of a perceptual measurement process;

[0065] Figure 2 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0066] Figure 3 A flowchart of a sensing method provided in an embodiment of the present application;

[0067] Figure 4 A flowchart of another sensing method provided in an embodiment of the present application;

[0068] Figure 5 A flowchart of another sensing method provided in an embodiment of the present application;

[0069] Figure 6 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0070] Figure 7 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] In order to better understand the embodiments of the present application, the following explanations are made before introducing the embodiments of the present application.

[0072] First, in the embodiments of the present application, "used for indication" may include being used for direct indication and being used for indirect indication. When describing that a certain "indication information" is used to indicate A, it may include that the indication information directly indicates A or indirectly indicates A, but it does not mean that the indication information must carry A.

[0073] The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each piece of information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0074] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods are not limited in this application. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, different indication methods may be used for different information. In the specific implementation process, the desired indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0075] The information to be indicated can be sent as a whole, or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in this application. Among them, the sending period and / or sending time of these sub-information can be pre-defined, for example, pre-defined according to the protocol, or can be configured by the transmitting device by sending configuration information to the terminal device. Among them, the configuration information can include, for example, but not limited to, one or a combination of at least two of RRC signaling, media access control (media access control, MAC) layer signaling and physical layer signaling. Among them, MAC layer signaling, for example, includes MAC-control element (control element, CE); physical (physical, PHY) layer signaling, for example, includes downlink control information (downlink control information, DCI).

[0076] Second, in the embodiments of the present application, the first, second and various digital numbers are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different indication information. For another example, the first network area and the second network area are only used to distinguish different areas, and their order is not limited. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not necessarily limit them to be different.

[0077] Third, in the embodiments of the present application, descriptions such as "when", "in the case of", "if" and "if" all mean that under certain objective circumstances, the device (such as a terminal device or an access network device) will make corresponding processing. It does not limit the time, nor does it require the device (such as a terminal device or an access network device) to have a judgment action when implementing it, nor does it mean that there are other limitations.

[0078] Fourth, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0079] Fifth, in the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of multiple items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0080] The embodiments of the present application will present various aspects, embodiments or features around a system that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all devices, components, modules, etc. discussed in conjunction with the figures. In addition, combinations of these schemes may also be used.

[0081] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless fidelity (Wi-Fi) systems, vehicle to everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Vehicles communication systems, 4th generation (4G) mobile communication systems, such as long term evolution (LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, 5G mobile communication systems, such as new radio (NR) systems, and future communication systems, such as 6G mobile communication systems.

[0082] The following introduces the communication system and applicable network elements involved in the embodiments of the present application, as well as related terms.

[0083] 1. RRC status

[0084] In the 5G communication system, the RRC state may include the RRC idle state, the RRC inactive state, and the RRC connected state. The idle state and the inactive state may both be referred to as the non-connected state. When the terminal device has no signaling and / or service data to receive or send, the terminal device may enter the idle state or the inactive state to reduce the power consumption of the terminal device.

[0085] (1) Idle state

[0086] The idle state refers to the state of the terminal device when it has completed its stay in the cell but has not performed the random access process, that is, the state of the terminal device when it is not connected to the access network device. The terminal device usually enters the idle state after being powered on or after the RRC connection is released. When the terminal device is in the idle state, the air interface connection between the terminal device and the access network device is disconnected, the context information is no longer saved, the terminal device only receives limited downlink information, and does not send uplink information.

[0087] For example, in the idle state, the terminal device can perform processes such as public land mobile network (PLMN) selection, cell selection, cell reselection, and system message broadcasting. In addition, in the idle state, since the terminal device is not connected to the access network device, has no access to the network, does not occupy the service resources of the access network device, and has not obtained the context and key of the terminal device, it is unable to transmit service data.

[0088] It should be understood that uplink information may refer to information sent by a terminal device to an access network device, and downlink information may refer to information sent by an access network device to a terminal device. Among them, limited downlink information may include downlink synchronization information required for a terminal device to complete its stay in a cell, information contained in a master information block (MIB), and information contained in a system information block (SIB) 1 (or remaining minimum system information (RMSI)), etc. For details, please refer to the description of the relevant 3GPP standard protocols, which will not be repeated here.

[0089] It can be understood that the idle state referred to in the embodiments of the present application generally refers to the radio resource control RRC idle state unless otherwise specified.

[0090] (2) Connection state

[0091] The connected state corresponds to the idle state, and refers to the state of the terminal device after completing the random access process but before releasing the RRC connection, that is, the state of the terminal device after completing the connection with the access network device. When the terminal device is in the connected state, it establishes an air interface connection with the access network device and communicates with the access network device based on the air interface connection. When the terminal device is in the idle state, after the terminal device completes the random access process, the state of the terminal device migrates to the connected state. When the terminal device is in the connected state, after completing the RRC connection release, the state of the terminal device migrates to the idle state. In the connected state, the terminal device can obtain the context and key from the access network device to use the context and key to transmit service data.

[0092] For example, the terminal device can enter the connected state from the idle state. For example, in the idle state, the terminal device can establish an RRC connection with the access network device by sending an RRC message to the access network device, such as sending an RRC connection establish request message, thereby entering the connected state. Alternatively, the terminal device can also enter the connected state from the inactive state. For example, in the inactive state, the terminal device can restore the RRC connection with the access network device by sending an RRC message to the access network device, such as an RRC resume request message, thereby entering the connected state. In addition, in the connected state, the terminal device can also be released to the idle state or the inactive state according to an RRC message sent by the access network device, such as an RRC release message, thereby reducing resource overhead, reducing power consumption, and improving the battery life of the terminal device.

[0093] It can be understood that the connection state referred to in the embodiments of the present application generally refers to the radio resource control RRC connection state unless otherwise specified.

[0094] (3) Inactive state

[0095] The inactive state is a state between the connected state and the idle state. For the terminal device in the inactive state, the user plane bearer of the air interface has been suspended, and the user plane bearer and control plane bearer between the access network device and the core network (CN) are still maintained. When the terminal device initiates a call or service request, it is necessary to activate the user plane bearer of the air interface, and reuse the existing user plane bearer and control plane bearer between the access network device and the CN. It can be understood that when the terminal device is in the inactive state, the air interface connection between the terminal device and the access network device is disconnected, but the context information continues to be saved. When the terminal device enters the connected state from the inactive state, based on the saved context information, the terminal device can quickly restore to the connected state.

[0096] For example, after the terminal device is released from the connected state to the inactive state, the key can be deleted, but the context can be retained so that it can be quickly restored to the connected state later. In the inactive state, the terminal device can perform cell reselection and send RRC messages, such as RRC recovery request messages, to perform early data transmission to reduce resource overhead and improve communication efficiency. In addition, in the inactive state, the terminal device can receive RRC messages, such as receiving RRC release messages, enter the idle state, and delete the context.

[0097] It can be understood that the inactive state referred to in the embodiments of the present application generally refers to the RRC inactive state unless otherwise specified, and can also be called the "third state".

[0098] Currently, the terminal device can receive paging in an inactive state or an idle state. For example, in an inactive state, the terminal device can identify RAN paging through a full inactive-radio network temporary identifier (full I-RNTI) or a 5G temporary mobile user identity (5G-S-temporary mobile subscriber identity, 5G-S-TMSI) to identify CN paging. In an idle state, the terminal device can identify CN paging through a 5G-S-TMSI.

[0099] When the terminal device switches from an inactive state to another state, such as an idle state or a connected state, the terminal device needs to clear or release the suspend configuration (suspend configuration) information element in the RRC release (release) message saved in the inactive state. Among them, the suspend configuration information element may include fullI-RNTI, shortI-RNTI, the cycle of access network initiated paging (ran-pagingCycle), access network update area information (ran-notificationAreaInfo), frequency hopping configuration (nextHopChainingCount), timer (timer), such as T380 and other parameters. The above parameters can be used for the terminal device to establish or restore the RRC connection with the network side. The specific functions and related introductions of each parameter can refer to the relevant introduction in "Section 5.3 of 38331" in 3GPP, which will not be repeated here.

[0100] 2. Integrated sensing and communication (ISAC)

[0101] ISAC can also be called joint communications and sensing (JCS) or joint communications and sensing (JCAS). In 6G mobile communication systems, higher frequency bands (millimeter waves and even terahertz), wider bandwidths, and larger-scale antenna arrays make high-precision and high-resolution perception possible, so that ISAC can be implemented in one system, making communication and perception functions complement each other. On the one hand, the entire communication network can act as a huge sensor. Network elements send and receive wireless signals, and use the transmission, reflection, and scattering of radio waves to better perceive and understand the physical world. By obtaining distance, speed, and angle information from wireless signals, a wide range of new services such as high-precision positioning, gesture capture, motion recognition, passive object detection, imaging, and environmental reconstruction can be provided, realizing "Network as a Sensor". On the other hand, the high-precision positioning, imaging, and environmental reconstruction capabilities provided by perception can help improve communication performance, such as more accurate beamforming and faster recovery from beam failure, realizing "perception-assisted communication". Perception is also a "new channel" for observing and sampling the physical and biological worlds and connecting them to the digital world. In the future, application scenarios of the 6GISAC system are likely to include ultra-high precision positioning, synchronous imaging, map construction, and human sensory enhancement.

[0102] The perception process is implemented using a perception signal, which may refer to a signal used to perceive a target or detect a target, or a signal used to perceive environmental information or detect environmental information. For example, a perception signal may be an electromagnetic wave sent by an access network device to perceive environmental information.

[0103] The echo signal is a signal generated by the perception signal acting on the perception target in the environment. The time delay of the echo signal relative to the sent perception signal reflects the distance of the perception target; the Doppler frequency shift of the echo signal relative to the sent perception signal reflects the speed of the perception target.

[0104] In the embodiments of the present application, the perception signal is a signal obtained by the perception target, and may also be referred to as a signal obtained by the perception signal being reflected by the perception target, a signal obtained by the perception signal being refracted by the perception target, a signal obtained by the perception signal being diffracted by the perception target, a signal obtained by the perception signal being transmitted by the perception target, a signal obtained by the perception signal being scattered or diffracted by the perception target, etc., without specific limitation.

[0105] The sensing target may include various tangible objects on the ground that can be sensed, such as mountains, forests, or buildings, and may also include movable objects such as vehicles and terminal devices. The sensing target is a target that can be sensed by an access network device with sensing function, and the target can feedback electromagnetic waves to the access network device. The sensing target may also be called a detected target, a sensed object, a detected object, or a sensed device, etc., without limitation.

[0106] It can be understood that the above-mentioned sensing targets can be moving or fixed, and can be active or passive. Active can refer to sensing targets with data processing capabilities, such as base stations, mobile phones, routers, vehicles, drones, wireless radio frequency identification (RFID) devices, etc. Passive can refer to sensing targets without data processing capabilities, such as human bodies, animals, plants, vehicles, buildings, etc.

[0107] 3. Perception Mode

[0108] In the current 3rd generation partnership project (3GPP) discussion, it has been determined that the perception modes can be divided into the following six modes:

[0109] (1) Base station sends and receives signals on its own: The sensing signal is sent by the base station, reflected by the target in the environment, and then the echo signal is received by the base station.

[0110] (2) Base station A sends and base station B receives: The sensing signal is sent by base station A, reflected by the target in the environment, and then the echo signal is received by base station B.

[0111] (3) Base station sends and terminal device receives: The sensing signal is sent by the base station, reflected by the target in the environment, and then the echo signal is received by the terminal device.

[0112] (4) The terminal device sends and the base station receives: The sensing signal is sent by the terminal device, reflected by the target in the environment, and then the echo signal is received by the base station.

[0113] (5) The terminal device sends and receives signals on its own: The sensing signal is sent by the terminal device, reflected by the target in the environment, and then the echo signal is received by the terminal device.

[0114] (6) Terminal device A sends and terminal device B receives: The sensing signal is sent by terminal device A, reflected by the target in the environment, and then the echo signal is received by terminal device B.

[0115] 4. Beam

[0116] Beaming refers to a special directional transmission or reception effect formed by the transmitter or receiver of a network device or terminal through an antenna array, similar to the beam formed by a flashlight converging light in one direction. Sending and receiving signals in the form of beams can effectively increase the transmission distance of signals.

[0117] The beam may be a wide beam, a narrow beam, or other types of beams. The beam forming technology may be a beam forming technology or other technologies. The beam forming technology may specifically be a digital beam forming technology, an analog beam forming technology, or a hybrid digital / analog beam forming technology.

[0118] Beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources, and the terminal feeds back the measured resource quality, so that the network device can know the quality of the corresponding beam. During data transmission, the beam can also be indicated by its corresponding resource. For example, the network device indicates a transmission configuration indication-state through the transmission configuration index (TCI) field in the DCI, and the terminal determines the beam corresponding to the reference resource based on the reference resource contained in the TCI-state.

[0119] In the communication protocol, the beam can be specifically characterized as a digital beam, an analog beam, a spatial domain filter, a spatial filter, a spatial parameter, TCI, a TCI-state, etc. The beam used to send a signal can be called a transmission beam (or Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, etc. The beam used to receive a signal can be called a reception beam (or Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, etc.

[0120] It can be understood that the embodiments of the present application are uniformly described using beams, but beams can be replaced by other equivalent concepts and are not limited to the concepts mentioned above.

[0121] 5. Basic process of wireless sensing

[0122] According to the IMT-2020 discussion report "5G-Advanced Synaesthesia Air Interface Technology Research Report", for the above six perception modes, although the network element interactions involved may be different, the perception process is basically the same. Figure 1 As shown, it is generally divided into three steps: perception capability reporting, perception measurement configuration and perception measurement reporting.

[0123] Perception capability reporting is usually the first step in the perception process. Its function is for the terminal device and / or access network device to report the supported perception modes and capabilities related to perception signal processing, thereby helping the SF or access network device to determine the appropriate perception mode and perception resources. Perception measurement configuration is the second step in the perception process. Its purpose is to determine the allocation of perception resources based on the perception requirements after the terminal device and / or access network device receives the perception requirements sent by the SF. In the perception measurement configuration process, the access network device is a network element that must participate and is responsible for the allocation of air interface resources. Therefore, this process exists in the interaction between the SF and the access network device and the access network device and the terminal device. Perception measurement reporting is the last step in the perception process. Its purpose is to report the collected perception measurement results to the SF or the service terminal device. In different perception modes, the reporting network element can be the terminal device or the access network device.

[0124] In the above perception process, there are the following problems:

[0125] 1. Perception terminal device selection: Only one terminal device is selected for measurement at a time during the measurement process, and multiple terminal devices are not supported for simultaneous measurement. Therefore, the current perception measurement process may not support the selection of multiple terminal devices for perception, and cannot meet the scenario where some perception services require the network to select multiple terminal devices to participate in perception at the same time.

[0126] 2. Configuration and reporting: In the current perception measurement, when the terminal device is in a connected state, the access network device sends an RRC reconfiguration message to configure the measurement for the terminal device. Therefore, the current perception measurement process may not support the terminal device to directly perform perception configuration in a non-connected state, and cannot support the terminal device to report perception data in a non-connected state. In addition, when the access network device performs perception configuration for a terminal device in a connected state, it can configure the uplink perception measurement resources allocated to the terminal device, but cannot support the terminal device to perform downlink perception.

[0127] It can be seen that the current perception process cannot realize the perception measurement configuration and reporting of the terminal device in the non-connected state. To this end, the embodiment of the present application provides a perception method, which can realize the perception configuration and reporting of the terminal device in the non-connected state.

[0128] For example, Figure 2 The following is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. Figure 2 As shown, the communication system includes terminal equipment, access network equipment, access and mobility management network elements and perception network elements, and each of them can communicate with each other.

[0129] 1. Terminal equipment

[0130] The terminal device may be one or more, such as a first terminal device, a second terminal device, a third terminal device, etc. The terminal device may be a terminal device with a transceiver function, or may be a chip or a chip system provided in the terminal device. The terminal device may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application can be a mobile phone, a cellular phone, a smart phone, a tablet computer, a wireless data card, a personal digital assistant (PDA), a wireless modem, a handheld device (handset), a laptop computer, a machine type communication (MTC) terminal, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a smart home device (for example, a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a robotic arm, a workshop equipment, a wireless terminal in unmanned driving, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a vehicle-mounted terminal, a roadside unit with terminal function, and a wireless terminal in a smart city. The terminal device of the present application may also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit built into a vehicle as one or more components or units. The terminal device may also be other devices with terminal functions, for example, the terminal device may also be a device that functions as a terminal in D2D communication.

[0131] The embodiments of the present application do not limit the device form of the terminal. The device for realizing the function of the terminal device can be a terminal device; it can also be a device that can support the terminal device to realize the function, such as a chip system. The device can be installed in the terminal device or used in combination with the terminal device. In the embodiments of the present application, the chip system can be composed of chips, or it can include chips and other discrete devices.

[0132] 2. Access network equipment

[0133] The access network device may also be referred to as an access network (radio access network, RAN) node, network device, RAN entity or access node, etc., located on the network side of the above-mentioned communication system, to help the terminal device achieve wireless access, and a device with wireless transceiver function or a chip or chip system that can be set in the device. The access network device includes but is not limited to: base station, evolved NodeB (evolved NodeB, eNodeB), access point (access point, AP), transmission reception point (transmission reception point, TRP), next generation base station (next generationNodeB, gNB), next generation base station in 6G mobile communication system, base station in future mobile communication system, or access node in Wi-Fi system, etc. The access network device may be a macro base station, a micro base station or an indoor station, a relay node or a donor node, an open radio access network (open radio access network, ORAN), or a wireless controller in a centralized radio access network (centralized radio access network, CRAN) scenario. Optionally, the RAN node may also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in the V2X technology may be a road side unit (road side unit, RSU). All or part of the functions of the access network device in this application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The access network device in this application may also be a logical node, logical module or software that can implement all or part of the functions of the access network device.

[0134] In another possible scenario, multiple RAN nodes collaborate to assist the terminal device in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node 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). The CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).

[0135] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0136] In the embodiments of the present application, the form of the access network device is not limited. The device for realizing the function of the access network device may be the access network device; or it may be a device capable of supporting the access network device to realize the function, such as a chip system. The device may be installed in the access network device or used in conjunction with the access network device.

[0137] 3. Access and mobility management network elements

[0138] The access and mobility management network element is a device deployed in the core network to provide services for terminal devices, and is used to implement access management and mobility management of terminal devices. For example, it is responsible for the status maintenance of terminal devices, the reachability management of terminal devices, the forwarding of non-access-stratum (NAS) messages of non-mobility management (MM), the forwarding of session management (SM) N2 messages, etc. For example, when the method of an embodiment of the present application is applied to a 5G system, the access management network element may be the AMF in the 5G system. For another example, when the method of an embodiment of the present application is applied to an LTE system, the access and mobility management network element may be a mobility management entity (MME).

[0139] 4. Perception network elements

[0140] A perception network element is a device deployed in the core network in the interawareness integration scenario to realize the perception function. It can be an independent network element or be jointly set up with other network elements. The deployment mode can be centralized or distributed. The perception network element can realize the selection of perception devices, the control of perception services, the independent or joint processing of perception measurement data with other network elements, and the output of perception measurement results to the perception requester, etc. For example, the perception network element can be a SF.

[0141] It should be understood that Figure 2 The communication system shown may also include other core network elements, other terminal devices, or other access network devices, such as data management elements, policy control elements, etc., without limitation. The data management element may be a unified data management (UDM) in a 5G system, and the policy control element may be a policy control function (PCF) in a 5G system.

[0142] In an embodiment of the present application, each communication device, such as an access network device and a terminal device, is configured with multiple antennas, which may include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals. In addition, each communication device also additionally includes a transmitter chain and a receiver chain. It can be understood by a person skilled in the art that they can all include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers, demodulators, demultiplexers or antennas, etc.). Therefore, communication devices can communicate with each other through multi-antenna technology. Specifically, the communication device is equipped with an antenna array, and the antenna array elements in the antenna array can be used for perception or communication. In other words, each communication device can send multiple perception signals and / or communication signals at the same time, and the antenna array of the communication device has perception and communication functions.

[0143] When perceiving, access network equipment and terminal equipment may also be referred to as perception equipment, perception devices, perception communication equipment, perception equipment, perception communication equipment, etc., without any limitation.

[0144] It should be pointed out that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of corresponding functions in other communication systems.

[0145] The following will be combined Figure 3-Figure 5 The sensing method provided in the embodiment of the present application is described in detail.

[0146] For example, Figure 3 A flow chart of a sensing method provided in an embodiment of the present application. The communication method can be applied to Figure 2 The communication between the terminal device, access network device, access and mobility management network element and perception network element shown. Among them, the subject that executes the terminal device action in the method can also be a device / module in the terminal device, such as a chip, processor, processing unit, etc. in the terminal device, and the embodiment of the present application does not make specific limitations on this. The subject that executes the access network device action in the method can also be a device / module in the access network device, such as a chip, processor, processing unit, etc. in the access network device, and the embodiment of the present application does not make specific limitations on this. The subject that executes the access and mobility management network element action in the method can also be a device / module in the access and mobility management network element, such as a chip, processor, processing unit, etc. in the access and mobility management network element, and the embodiment of the present application does not make specific limitations on this. The subject that executes the perception network element action in the method can also be a device / module in the perception network element, such as a chip, processor, processing unit, etc. in the perception network element, and the embodiment of the present application does not make specific limitations on this.

[0147] like Figure 3 As shown, the perception method includes:

[0148] S301: A first access network device sends a paging message. Correspondingly, a first terminal device receives the paging message.

[0149] Among them, the paging message is used to page the terminal device belonging to the first perception group, that is, the paging message includes information for indicating the first perception group, so that the terminal device can determine that the perception group information stored by it is consistent with the perception group information carried in the paging message. If they are consistent, that is, it belongs to the first perception group, it responds to the paging message, and if they are inconsistent, it does not respond to the paging message. For example, the information used to indicate the first perception group can be the identification (ID) of the first perception group, or an index used to indirectly indicate the identification of the first perception group, which is not limited to this.

[0150] It should be understood that in the embodiment of the present application, the first access network device pages the terminal device in a non-connected state, and the non-connected state includes an idle state and an inactive state. That is, the first access network device determines the terminal device in a non-connected state belonging to the first perception group by paging.

[0151] For any terminal device within the coverage of the first access network device, taking the first terminal device as an example, the first terminal device can correspond to at least one perception group, and different perception groups can be divided based on different conditions. The first terminal device can identify whether the perception group indicated in the paging message matches its assigned perception group. The perception group to which the first terminal device belongs can be pre-configured for the first terminal device by the first access network device.

[0152] In one possible implementation, before sending a paging message, the first access network device sends an RRC release message to the first terminal device. Accordingly, the first terminal device receives the RRC release message from the first access network device. The RRC release message includes information for indicating the perception group to which the first terminal device belongs, and the perception group to which the first terminal device belongs includes the first perception group. That is, the first terminal device is in a connected state before receiving the RRC release message, and the first access network device can configure the perception group information to the first terminal device in the RRC release message indicating that the first terminal device changes from a connected state to a non-connected state.

[0153] It should be understood that before sending the paging message, the first access network device can also send perception packet information through other RRC messages, MAC messages, etc. when the first terminal device is in a connected state. After that, the first access network device can execute the transition from the connected state to the non-connected state for the first terminal device according to the release request of the first terminal device.

[0154] The perception group to which the terminal device belongs may be divided according to the perception capability of the terminal device, and the terminal device may be divided into different perception groups based on different perception capabilities. The perception capability of the terminal device may include the perception mode supported by the terminal device, the perception measurement accuracy supported by the terminal device, the perception calculation rate of the terminal device, the perception distance supported by the terminal device, etc. For example, the terminal device is grouped according to the perception distance supported by the terminal device, and the terminal devices whose supported perception distances are in different intervals are divided into different perception groups, and each perception group has a perception group identifier.

[0155] In an embodiment of the present application, the division of perception groups can be performed by an access network device or by a perception network element, and the perception network element then sends the divided perception group information to the access network device, and the access network device then distributes the perception group information of the perception group to which each terminal device belongs.

[0156] In one possible design, the first access network device may send a paging message based on the triggering of the access and mobility management network element. In this design, the first access network device may receive a first message from the access and mobility management network element, and send a paging message based on the first message. The first message is used to request the first access network device to perform perception configuration for the terminal device belonging to the first perception group. That is, the first message also includes information indicating the first perception group, and the access and mobility management network element triggers the first access network device to page the terminal device, so that the first access network device performs perception configuration for the terminal device that meets the paging conditions to complete the perception task to be performed.

[0157] In a possible implementation, the first message may further include information indicating an area where the perception task is to be performed. The information indicating an area where the perception task is to be performed may be represented by a number of geographic coordinates (such as longitude and latitude), and the geographic area surrounded by the plurality of geographic coordinates represents an area where the perception task is to be performed. The area where the perception task is to be performed may also be represented by other methods such as center coordinates + radius, and there is no limitation on this.

[0158] Therefore, the first access network device can determine the direction and number of paging beams for sending paging messages based on the information used to indicate the area where the perception task is performed, so that the area where the perception task is performed is covered by the paging beam, so as to quickly determine the terminal devices that meet the paging conditions within the perception area.

[0159] In some possible implementations, the information used to indicate the area where the perception task is performed may also be referred to as perception area information, perception area indication information, etc., without limitation.

[0160] Optionally, the first message may also include a second perception configuration, and the second perception configuration is used to indicate a period of measurement and / or reporting of the perception task within a preset time. Exemplarily, the second perception configuration may include at least one of the following: information indicating the perception task, information indicating measurement of periodic performance of the perception task, information indicating reporting of measurement results of periodic performance of the perception task, information indicating the time of performing the perception task, or information indicating the area in which the perception task is performed.

[0161] The information used to indicate the perception task is used to indicate a certain type of perception of a certain type of target. For example, the target type may be a vehicle, a building, a tree, a drone, etc., and the perception type may be distance measurement, angle measurement, speed measurement, frequency measurement, imaging, etc. In some possible implementations, the information used to indicate the perception task may also be referred to as perception session information, perception session identifier, perception task identifier, etc., without limitation. The perception session corresponds to the perception task and can be understood as a session used to complete the perception task, without limitation.

[0162] The information used to indicate the periodic execution of the measurement of the perception task is used to indicate how often the terminal device executes the measurement of the perception task, and the information used to indicate the reporting of the measurement result of the periodic execution of the perception task is used to indicate how often the terminal device reports the perception measurement result of the perception task. In some possible implementations, the information used to indicate the periodic execution of the measurement of the perception task may also be referred to as perception measurement cycle information, perception task execution cycle information, etc., and the information used to indicate the reporting of the measurement result of the periodic execution of the perception task may also be referred to as perception reporting cycle information, reporting cycle information, perception result reporting cycle information, etc., without limitation.

[0163] The information used to indicate the time to perform a perception task is used to indicate the time requirement for the terminal device to perform a measurement of the perception task. The start time of the terminal device to perform a measurement of a perception task may be the time when the terminal device receives the echo signal, and the end time may be the time when the terminal device calculates the perception measurement result based on the echo signal. For a measurement that is not completed within the required time, the terminal device may discard the perception measurement result or not report the perception measurement result. Alternatively, the information used to indicate the time to perform a perception task is used to indicate the time requirement for the terminal device to perform the measurement to complete the entire perception task, that is, how long the terminal device needs to complete the measurement of the entire perception task. In some possible implementations, the information used to indicate the time to perform a perception task may also be referred to as perception measurement timing information, measurement duration threshold information, etc., which is not limited to this. In addition, the information used to indicate the area where the perception task is performed can be found in the above description and will not be repeated here.

[0164] It should be understood that in addition to the several types of perception configuration information shown above, the second perception configuration may also include other configuration information related to the execution of the perception task, such as information used to indicate the time to end the execution of the perception task, information used to indicate the time to start the execution of the perception task, etc., without limitation.

[0165] In the above design scheme, the access and mobility management network element can send a first message according to the trigger of the perception network element. In a possible implementation, the perception network element sends a fourth message to the access and mobility management network element, and accordingly, the access and mobility management network element receives the fourth message from the perception network element and sends the first message according to the fourth message. The fourth message is used to request the access and mobility management network element to instruct at least one access network device to perform perception configuration for a terminal device belonging to the first perception group, and the first access network device is one of the at least one access network device.

[0166] That is to say, after the access and mobility management network element receives the fourth message sent by the perception network element, it triggers one or more access network devices to page the terminal devices belonging to the first perception group according to the fourth message, and performs perception configuration for the paged terminal devices. In one example, the fourth message may include an identifier of at least one access network device and information for indicating the first perception group, and the identifier of at least one access network device may be indicated in the form of a list, such as gNB idlist. It should be understood that at least one access network device may be all access network devices managed by the access and mobility management network element, or it may be a part of them, and there is no limitation on this.

[0167] In one possible implementation, the fourth message may also include a second perception configuration, that is, the perception network element may send down relevant configurations for performing the perception task, and the access and mobility management network element may instruct at least one access network device (including the first access network device) to perform perception configuration for the paging terminal device.

[0168] In a possible implementation, the paging message may also include information for indicating the perception task, and the paging message is specifically used to instruct the terminal devices belonging to the first perception group to perform the perception task. That is, the first access network device informs the terminal devices belonging to the first perception group of the perception task to be performed during the paging process, and may also inform the terminal devices belonging to the first perception group of the perception task to be performed after the paging is completed.

[0169] Therefore, for the terminal device that receives the paging message, taking the first terminal device as an example, it needs to determine whether the perception group assigned to it matches the first perception group indicated by the paging message. If it matches, the first terminal device is ready to receive the perception configuration sent by the first access network device to perform the corresponding perception task; if it does not match, the first terminal device does not need to obtain the perception configuration sent by the first access network device. The following S302 explains how the matching terminal device obtains the perception configuration for performing the perception task.

[0170] S302: When the paging is completed, the first access network device sends a first sensing configuration for performing the sensing task. Correspondingly, when the first terminal device belongs to the first sensing group, the first terminal device receives the first sensing configuration for performing the sensing task.

[0171] The first perception configuration may include at least one of the following: information for indicating a perception task, information for indicating measurement of periodically performing a perception task, information for indicating reporting of measurement results of periodically performing a perception task, information for indicating the time of performing a perception task, information for indicating the area of ​​performing a perception task, or information for indicating resources for performing a perception task. Among them, the information for indicating resources for performing a perception task may indicate one or more of the time-frequency resources used by the first access network device to send a first perception signal, the sequence information constituting the first perception signal, and the time-frequency resources used by the terminal device to report the perception measurement results, among which the time-frequency resources used by the first access network device to send the first perception signal are used by the terminal device to receive signals on the corresponding time-frequency resources, the sequence information constituting the first perception signal is used by the terminal device to identify whether the received signal is sent by the first access network device, and the time-frequency resources used by the terminal device to report the perception measurement results are resources allocated to the terminal device for uplink transmission. In addition, the specific description of other information can refer to the relevant description in the above S301, which will not be repeated here.

[0172] When the first access network device triggers paging according to a first message from the access and mobility management network element, and the first message includes the second perception configuration, the first perception configuration may be determined by the first access network device according to the second perception configuration.

[0173] In a possible design, paging completion may refer to the first access network device waiting for a period of time after sending a paging message, during which a terminal device that meets the paging condition (such as the first terminal device) feeds back a response to the first access network device, and at this time, the connection state of the terminal device that meets the paging condition changes. In this design, the terminal device that meets the paging condition may send a request message to the first access network device to request to restore from a non-connected state to a connected state to obtain the first configuration information.

[0174] For the first terminal device in an idle state, the first terminal device can send an RRC setup message to the first access network device, and accordingly, the first access network device receives the RRC setup message from the first terminal device. For the first terminal device in an inactive state, the first terminal device can send an RRC resume request message to the first access network device, and accordingly, the first access network device receives the RRC resume request message from the first terminal device.

[0175] When the first terminal device is restored to a connected state, the first access network device sends the first configuration information to the first terminal device. In a possible implementation, the first access network device sends an RRC reconfiguration message to the first terminal device, and correspondingly, the first terminal device receives the RRC reconfiguration message from the first access network device. The RRC reconfiguration message includes the first perception configuration.

[0176] In this implementation, after the first terminal device obtains the first perception configuration, the first access network device can send an RRC release message to the first terminal device to make the first terminal device be in a non-connected state again. In the non-connected state, the perception task is performed according to the first perception configuration, which can reduce the energy consumption of the terminal.

[0177] In another possible implementation, the first access network device sends an RRC release message to the first terminal device, and correspondingly, the first terminal device receives the RRC release message from the first access network device. The RRC release message includes the first perception configuration. That is to say, when the first access network device releases the first terminal device to be in a non-connected state again, it sends the first configuration information to the first terminal device, so that the first terminal device performs the perception task according to the first perception configuration in the non-connected state, which can reduce the energy consumption of the terminal.

[0178] In another possible design scheme, paging completion may mean that the first access network device waits for a period of time after sending a paging message. During this period of time, the terminal device that meets the paging conditions (such as the first terminal device) does not feedback a response to the first access network device. At this time, the terminal device that meets the paging conditions remains in a non-connected state.

[0179] In addition to the above-mentioned design scheme, the terminal device remains in a non-connected state after receiving the paging message. In one possible scenario, the paging message may also include information for instructing the terminal device belonging to the first perception group to remain in a non-connected state, so as to instruct the terminal device belonging to the first perception group to remain in a non-connected state to receive the perception configuration, without performing the connection restoration according to the paging message, that is, without feeding back a response to the first access network device.

[0180] Furthermore, when the terminal device remains in a non-connected state, the first access network can periodically send broadcast messages to perform perception configuration for the terminal device. In one implementation, the first access network device sends a first broadcast message, and correspondingly, the first terminal device receives the first broadcast message. Among them, the first broadcast message includes first configuration information, during which the first terminal device remains in a non-connected state, and receives the first perception configuration in the broadcast message while in a non-connected state. The first broadcast message can be a system information block (SIB) message, such as SIB20, or a predefined dedicated perception configuration broadcast, which is not limited to this.

[0181] In the embodiment of the present application, the perception mode is that the access network device sends a perception signal, and the terminal device receives an echo signal after the perception signal is acted upon by the perception target. Thus, after the first terminal device receives the first configuration information, when in a non-connected state, it receives the echo signal corresponding to the first perception signal used to perform the perception task according to the first perception configuration, and determines the first perception measurement result according to the echo signal corresponding to the first perception signal.

[0182] Further, the first terminal device initiates an RRC recovery request message or an RRC establishment message to recover from a non-connected state to a connected state, so as to send a first perception measurement result to the first access network device. In one possible implementation, the first terminal device sends a second message to the first access network device, and correspondingly, the first access network device receives the second message from the first terminal device. The second message includes the first perception measurement result, and the second message can be a measurement report message. It should be understood that the second message also includes an identifier of the first terminal device and an identifier of the first access network device.

[0183] Exemplarily, within a preset time length, the first terminal device receives an echo signal corresponding to a first perception signal sent by a first access network device at a corresponding time-frequency position, measures and calculates the echo signal to obtain a first perception measurement result, periodically executes the measurement process, and periodically reports the first perception measurement result.

[0184] When the first access network device does not page the terminal device in the perception area to perform the perception task according to the perception area information, or when the area covered by the paging beam determined by the first access network device according to the perception area information is larger than the perception area within its coverage area, the terminal device that meets the paging conditions (such as the first terminal device) may not be in the perception area for performing the perception task, and the perception measurement result obtained may not be accurate enough.

[0185] In this case, in one possible scenario, the first access network device may also send a second broadcast message in a different direction, and the second broadcast message includes information for indicating whether the first terminal device performs the perception task. For example, the information for indicating whether the first terminal device performs the perception task is indicated by 0 or 1. Among them, 0 indicates that the first terminal device does not perform the perception task in this direction, which can be understood as there is no perception area in the area covered by the beam that sends the second broadcast message in this direction, or it can be understood that the first terminal device is not located in the perception area; 1 indicates that the first terminal device performs the perception task in this direction, which can be understood as there is a perception area in the area covered by the beam that sends the second broadcast message in this direction, or it can be understood as the first terminal device is located in the perception area.

[0186] In another possible scenario, the second broadcast message may include a first identifier, and the first identifier is used to identify that the first terminal device performs the sensing task. It can be understood that the first identifier is a type of information used to indicate whether the first terminal device performs the sensing task in the above scenario.

[0187] Exemplarily, the first identifier may identify a sub-area obtained by dividing a cell by the first access network device, such as dividing the cell covered by the first access network device into four sub-areas 1 to 4, and the four sub-areas are identified by 00, 01, 10, and 11, respectively. For a sub-area where a perception area exists, such as sub-area 1, when the first access network device sends a second broadcast message in sub-area 1, the second broadcast message carries the identifier 00 of sub-area 1. The first terminal device obtains the identifier 00 of sub-area 1 through the second broadcast message, and can perform the perception task according to the first configuration information. It should be understood that the first terminal device is located in sub-area 1. For a sub-area where no perception area exists, such as sub-area 2, when the first access network device sends a second broadcast message in sub-area 2, the second broadcast message may not carry the identifier of sub-area 2 to indicate to the first terminal device that it is not located in the perception area and does not need to perform the perception task, which can reduce the energy consumption of the terminal device.

[0188] That is to say, if the first terminal device obtains the first identifier in the second broadcast message, or the second broadcast message carries the first identifier, the first terminal device can determine that it is located in the perception area and can perform the perception task. If the first terminal device cannot obtain the first identifier in the second broadcast message, or the second broadcast message does not carry the first identifier, the first terminal device can determine that it is not located in the perception area and does not need to perform the perception task. In other words, the first terminal device performs the perception task according to the first identifier and the first configuration information, such as receiving an echo signal corresponding to the first perception signal used to perform the perception task, and measuring the echo signal to obtain a first perception measurement result.

[0189] In this case, after the first terminal device obtains the first perception measurement result, the first perception measurement result may carry a first identifier, so that the first access network device can know in which area the first terminal device measured the corresponding first perception measurement result according to the first identifier. That is, the first access network device divides the cells at a finer granularity and corresponds the divided cell areas to the perception areas, so that the first terminal device can reduce useless measurements and reports and perform perception tasks more accurately.

[0190] In a possible scenario, when the first terminal device is performing a perception task, if a cell reselection occurs, such as the first terminal device reselects from the first access network device to the second access network device, the perception area is distributed under the first access network device and the second access network device. At this time, when the first terminal device is under the coverage of the second access network device, the second access network device can also send a third broadcast message in different directions. The third broadcast message carries information or a first identifier for indicating whether the first terminal device performs the perception task, so as to indicate whether the first terminal device is located in the perception area and whether the perception task can be performed. For specific implementation, please refer to the relevant description of the first access network device sending the second broadcast message, which will not be repeated here.

[0191] In this scenario, since the first terminal device has been reselected, the perception measurement result sent by the first terminal device to the second access network device may include a first perception measurement result and a second perception measurement result. The first perception measurement result is determined by the first terminal device according to an echo signal corresponding to a first perception signal sent by the first access network device for performing a perception task, that is, measured within the perception area of ​​the first access network device, and the second perception measurement result is determined by the first terminal device according to an echo signal corresponding to a second perception signal sent by the second access network device for performing a perception task, that is, measured within the perception area of ​​the second access network device.

[0192] Further, after the first access network device or the second access network device receives the perception measurement result, the perception measurement result can be sent to the perception network element. In a possible implementation, the first access network device sends a third message to the perception network element, and correspondingly, the perception network element receives the third message from the first access network device. The third message includes the first perception measurement result. It should be understood that the third message also includes the identifier of the first terminal device and the identifier of the first access network device.

[0193] It should be understood that different access network devices may be assigned the same perception task or different perception tasks, and there is no limitation on this.

[0194] based on Figure 3In the perception method shown, the first access network device can page the terminal devices in the non-connected state belonging to the first perception group through a paging message, and when the paging is completed, the terminal devices in the non-connected state that meet the paging conditions are configured for perception. In this way, not only can it be avoided that all terminal devices with perception capabilities respond to the paging after the paging is initiated, thereby reducing the pressure on the network connection, but also the efficiency of the perception configuration can be improved. Furthermore, by performing perception configuration on the terminal devices in the non-connected state, the terminal devices can perform perception measurements in the non-connected state, which can reduce the energy consumption of the terminal devices and further reduce the pressure on the network connection.

[0195] The following is a detailed description of the application scenarios. Figure 3 The perception method shown is described in detail. The following terminal devices that meet the paging conditions are UE1 and UE3, the terminal devices that do not meet the paging conditions are UE2 and UE4, the first access network device is gNB1, the second access network device is gNB2, the access and mobility management network element is AMF, and the perception network element is SF as an example for explanation.

[0196] For example, Figure 4 Another sensing method process provided by the embodiment of the present application. Figure 4 As shown, the perception method includes the following steps:

[0197] S401. SF sends message #1 to AMF. Correspondingly, AMF receives message #1 from SF.

[0198] Among them, message #1 is used to request AMF to instruct gNB1 and gNB2 to perform sensing configuration for UE belonging to sensing group 1, and message #1 includes AMF ID, sensing task ID, sensing group 1 ID, gNB1 ID, gNB2 ID, sensing area information, sensing measurement cycle information, sensing reporting cycle information and sensing measurement time information. Among them, the specific description of sensing task, sensing group, sensing area information, sensing measurement cycle information, sensing reporting cycle information and sensing measurement time information can refer to the relevant description in the above S301, which will not be repeated here.

[0199] S402. AMF sends message #2 to gNB1. Correspondingly, gNB1 receives message #2 from AMF.

[0200] Among them, message #2 is used to request gNB1 to perform perception configuration for UE belonging to perception group 1. Message #2 includes the ID of the perception task, the ID of perception group 1, the gNB1 ID, the perception area information, the perception measurement period information, the perception reporting period information and the perception measurement time information.

[0201] S403. AMF sends message #3 to gNB2. Correspondingly, gNB1 receives message #3 from AMF.

[0202] Among them, message #3 is used to request gNB2 to perform perception configuration for UE belonging to perception group 1. Message #3 includes the ID of perception task 1, the ID of the perception group, the gNB2 ID, the perception area information, the perception measurement period information, the perception reporting period information and the perception measurement time information.

[0203] S404. gNB1 sends paging message #1 according to message #2. Correspondingly, UE1 and UE2 receive paging message #1.

[0204] Among them, paging message #1 is used to page the UE belonging to perception group 1 to perform perception task 1, and paging message #1 includes the ID of perception task 1 and the ID of perception group 1.

[0205] Exemplarily, gNB1 can determine the beam range for sending paging message #1 based on the perception area information of message #2, so that only non-connected UEs within the perception area are paged, thereby improving the perception configuration efficiency in combination with the location information.

[0206] After receiving paging message #1, UE1 and UE2 determine whether they belong to perception group 1. UE1 determines that it belongs to perception group 1 and executes the following S406, while UE2 determines that it does not belong to perception group 1, and does not respond to gNB1 and does not participate in the perception configuration.

[0207] S405. gNB2 sends paging message #2 according to message #3. Correspondingly, UE3 and UE4 receive paging message #2.

[0208] Among them, paging message #2 is used to page the UE belonging to perception group 1 to perform perception task 1, and paging message #1 includes the ID of perception task 1 and the ID of perception group 1.

[0209] After receiving paging message #2, UE3 and UE4 determine whether they belong to perception group 1. UE3 belongs to perception group 1 and executes the following S407. However, UE4 does not belong to perception group 1, does not respond to gNB2, and does not participate in the perception configuration.

[0210] Exemplarily, gNB2 can determine the beam range for sending paging message #2 based on the perception area information of message #3, so that only non-connected UEs within the perception area are paged, thereby improving the perception configuration efficiency in combination with the location information.

[0211] S406. UE1 sends an RRC setup message #1 to gNB1. Correspondingly, gNB1 receives the RRC setup message #1 from UE1.

[0212] Among them, RRC establishment request #1 is used to request to restore from the idle state to the connected state.

[0213] S407. UE3 sends an RRC resume request message #1 to gNB2. Correspondingly, gNB2 receives the RRC resume request message #1 from UE3.

[0214] Among them, the RRC recovery request message #1 is used to request recovery from the inactive state to the connected state.

[0215] S408a, gNB1 sends an RRC reconfiguration message #1 to UE1. Correspondingly, UE1 receives the RRC reconfiguration message #1 from gNB1.

[0216] Among them, the RRC reconfiguration message #1 carries the perception configuration #1, and the perception configuration #1 includes UE1 ID, perception measurement cycle information, perception reporting cycle information, perception measurement time information and perception resource information. Among them, the specific description of the perception configuration #1 and the following perception configuration #2 can refer to the relevant description of the first perception configuration in S301 above, which will not be repeated here.

[0217] S408b, gNB1 sends an RRC release message #1 to UE1. Correspondingly, UE1 receives the RRC release message #1 from gNB1.

[0218] The above S408a and S408b can be replaced by:

[0219] S408c, gNB1 sends RRC release message #2 to UE1. Correspondingly, UE1 receives RRC release message #2 from gNB1.

[0220] Among them, RRC release message #2 carries perception configuration #1.

[0221] S409a, gNB2 sends RRC reconfiguration message #2 to UE3. Correspondingly, UE3 receives RRC reconfiguration message #2 from gNB1.

[0222] Among them, the RRC reconfiguration message #2 carries perception configuration #2, and the perception configuration #2 includes UE3 ID, perception measurement cycle information, perception reporting cycle information, perception measurement time information and perception resource information.

[0223] S409b, gNB2 sends RRC release message #3 to UE3. Correspondingly, UE3 receives RRC release message #3 from gNB2.

[0224] The above S408a and S408b can be replaced by:

[0225] S409c, gNB2 sends RRC release message #4 to UE3. Correspondingly, UE3 receives RRC release message #4 from gNB2.

[0226] Among them, RRC release message #4 carries perception configuration #2.

[0227] S410, gNB1 sends perception signal #1. Correspondingly, UE1 receives echo signal #1 corresponding to perception signal #1 according to perception configuration #1.

[0228] Exemplarily, after UE1 completes the perception configuration, after being released to the non-connected state through the above S408b or S408c, in the non-connected state, the echo signal #1 corresponding to the perception signal #1 is received according to the time-frequency position of the perception signal #1 sent by gNB1 in the perception configuration #1, and the perception measurement result #1 is calculated according to the echo signal #1. When the reporting period is reached or reporting is required, UE1 executes the following S412 to restore the connected state to report the perception measurement result.

[0229] S411, gNB2 sends perception signal #2. Correspondingly, UE3 receives echo signal #2 corresponding to perception signal #2 according to perception configuration #2.

[0230] Exemplarily, after UE3 completes the perception configuration, after being released to the non-connected state through the above S408b or S408c, in the non-connected state, the echo signal #2 corresponding to the perception signal #1 is received according to the time-frequency position of the perception signal #2 sent by gNB2 in the perception configuration #2, and the perception measurement result #2 is calculated according to the echo signal #2. When the reporting period is reached or reporting is required, UE3 executes the following S414 to restore the connected state to report the perception measurement result.

[0231] S412. UE1 sends RRC setup message #2 to gNB1. Correspondingly, gNB1 receives RRC setup message #2 from UE1.

[0232] S413. UE1 sends report message #1 to gNB1. Correspondingly, gNB1 receives report message #1 from UE1.

[0233] When in the connected state, UE1 sends report message #1, which includes perception measurement result #1, UE1 ID and gNB1ID.

[0234] S414. UE3 sends RRC recovery request message #2 to gNB2. Correspondingly, gNB2 receives RRC recovery request message #2 from UE3.

[0235] S415. UE3 sends report message #2 to gNB2. Correspondingly, gNB2 receives report message #2 from UE3.

[0236] When in the connected state, UE3 sends report message #2, which includes perception measurement result #2, UE3 ID and gNB2ID.

[0237] S416. gNB1 sends report message #3 to SF. Correspondingly, SF receives report message #3 from gNB1.

[0238] Among them, report message #3 includes perception measurement result #1, UE1 ID and gNB1 ID.

[0239] S417. gNB1 sends report message #4 to SF. Correspondingly, SF receives report message #4 from gNB1.

[0240] Among them, report message #4 includes perception measurement result #2, UE3 ID and gNB2 ID.

[0241] Depend on Figure 4 It can be seen from the sensing method shown that in the sensing scenario where the gNB sends and the UE receives, the SF triggers the AMF to instruct the gNB to paging. The UE that meets the paging conditions and is paged by the gNB returns to the connected state for sensing configuration. After the UE completes the sensing configuration, it is released to the non-connected state, and senses in the non-connected state, and periodically returns to the connected state for sensing reporting, which can reduce the network connection pressure and the sensing configuration efficiency. In addition, after the gNB pages the UE, the UE can also maintain the non-connected state for sensing configuration instead of returning to the connected state, and sense in the non-connected state, and then periodically return to the connected state for sensing reporting.

[0242] For example, Figure 5 This is a process of another perception method provided in the embodiment of the present application. Figure 5 As shown, the perception method includes the following steps:

[0243] S501. SF sends message #1 to AMF. Correspondingly, AMF receives message #1 from SF.

[0244] Among them, message #1 is used to request AMF to instruct gNB1 to perform sensing configuration for UE belonging to sensing group 1, and message #1 includes AMFID, sensing task ID, sensing group 1 ID, gNB1 ID, sensing area information, sensing measurement cycle information, sensing reporting cycle information and sensing measurement time information. Among them, the specific description of sensing task, sensing group, sensing area information, sensing measurement cycle information, sensing reporting cycle information and sensing measurement time information can refer to the relevant description in the above S301, which will not be repeated here.

[0245] S502. AMF sends message #2 to gNB1. Correspondingly, gNB1 receives message #2 from AMF.

[0246] Among them, message #2 is used to request gNB1 to perform perception configuration for UE belonging to perception group 1. Message #2 includes the ID of the perception task, the ID of perception group 1, the gNB1 ID, the perception area information, the perception measurement period information, the perception reporting period information and the perception measurement time information.

[0247] S503. gNB1 sends paging message #1 according to message #2.

[0248] Correspondingly, UE1 and UE2 receive paging message #1, where paging message #1 is used to page UEs belonging to sensing group 1 to perform sensing task 1, and paging message #1 includes the ID of sensing task 1 and the ID of sensing group 1.

[0249] Exemplarily, gNB1 can determine the beam range for sending paging message #1 based on the perception area information of message #2, so that only non-connected UEs within the perception area are paged, thereby improving the perception configuration efficiency in combination with the location information.

[0250] After receiving paging message #1, UE1 and UE2 determine whether they belong to perception group 1. UE1 determines that it belongs to perception group 1 and remains in a non-connected state and continues to execute the following step S504. UE2 determines that it does not belong to perception group 1, and does not respond to gNB2 and does not participate in the perception configuration.

[0251] S504. gNB1 sends broadcast message #1. Correspondingly, UE1 receives broadcast message #1.

[0252] Among them, broadcast message #1 carries perception configuration #1, and perception configuration #1 includes UE1 ID, perception measurement period information, perception reporting period information, perception measurement time information, and perception resource information. Among them, the specific description of perception configuration #1 can refer to the relevant description of the first perception configuration in S301 above, which will not be repeated here. Therefore, after UE1 receives perception configuration #1, it performs perception task 1 according to perception configuration #1.

[0253] In one possible scenario, if gNB1 does not determine the beam range for sending paging message #1 based on the sensing area information, gNB1 can divide the cell range it covers into some sub-areas, such as 4 sub-areas 1 to 4, each of which corresponds to a sub-area identifier, such as 00 to 11. gNB1 can determine which sub-areas of the divided sub-areas have sensing areas based on the sensing area information, and then send broadcast messages in different sub-areas. The broadcast messages in the sub-areas where the sensing area exists carry the identifier of the sub-area, while the broadcast messages in the sub-areas where the sensing area does not exist do not carry the identifier of the sub-area. The UEs that meet the paging conditions in each sub-area determine whether to perform the sensing task based on whether there is a sub-area identifier. Therefore, when reporting the sensing measurement result, the sensing measurement result can carry the obtained sub-area identifier to indicate to gNB1 in which area the sensing measurement result currently reported is measured by the UE.

[0254] S505. gNB1 sends perception signal #1. Correspondingly, UE1 receives echo signal #1 corresponding to perception signal #1 according to perception configuration #1.

[0255] The specific implementation process of S505 may refer to the related description of S410 or S411 above, which will not be repeated here.

[0256] S506. UE1 sends RRC establishment request #1 to gNB1. Correspondingly, gNB1 receives RRC establishment request #1 from UE1.

[0257] Exemplarily, when the reporting cycle is reached or reporting is required, UE1 needs to send an RRC establishment request #1 to recover from the idle state to the connected state.

[0258] S507. UE1 sends report message #1 to gNB1. Correspondingly, gNB1 receives report message #1 from UE1.

[0259] When in the connected state, UE1 sends a report message #1 to gNB1, where the report message #1 includes the perception measurement result #1, UE1 ID and gNB1 ID.

[0260] S508. gNB1 sends report message #2 to SF. Correspondingly, SF receives report message #2 from gNB1.

[0261] Among them, report message #2 includes perception measurement result #1, UE1 ID and gNB1 ID.

[0262] In a possible scenario, when UE1 is performing the sensing task, if UE1 reselects from gNB1 to gNB2, the following steps are also included:

[0263] S509. gNB2 sends broadcast message #2.

[0264] Among them, broadcast message #2 includes a first identifier. Exemplarily, the first identifier is the identifier of the sub-area into which the area covered by gNB2 is divided. In this scenario, gNB2 may also divide the area covered by it in the same manner as gNB1 in S504 above, and send broadcast message #2 in the undivided sub-area. Broadcast messages in the sub-area where a perception area exists carry the identifier of the sub-area, while broadcast messages in the sub-area where no perception area exists do not carry the identifier of the sub-area. UEs that meet the paging conditions and are located in each sub-area determine whether to perform the perception task based on whether there is a sub-area identifier.

[0265] S510, gNB2 sends perception signal #2. Correspondingly, UE1 receives echo signal #2 corresponding to perception signal #2 according to the first identifier and perception configuration #1.

[0266] After receiving the first identifier, UE1 determines that it needs to perform perception task 1, then receives echo signal #2 corresponding to perception signal #2 according to perception configuration #1, and calculates perception measurement result #2 according to echo signal #2. When the reporting period is reached or reporting is required, UE1 executes the following S511 to restore the connection state to report the perception measurement result.

[0267] S511. UE1 sends RRC establishment request #2 to gNB2. Correspondingly, gNB2 receives RRC establishment request #2 from UE1.

[0268] S512. UE1 sends report message #3 to gNB2. Correspondingly, gNB2 receives report message #3 from UE1.

[0269] In the connected state, UE1 sends report message #3, which may include perception measurement result #1, UE1 ID and gNB1 ID, and perception measurement result #2, UE1 ID and gNB2 ID. That is, UE1 can report the perception measurement results obtained before and after the reselection to the reselected gNB, i.e., gNB2.

[0270] S513. gNB2 sends report message #4 to SF. Correspondingly, SF receives report message #4 from gNB2.

[0271] Among them, report message #4 may include perception measurement result #1, UE1 ID and gNB1 ID, and perception measurement result #2, UE1 ID and gNB2 ID.

[0272] Depend on Figure 5The sensing method shown, in the sensing scenario where gNB sends and UE receives, SF triggers AMF to instruct gNB to page, and UE matching the paging condition remains in a non-connected state to read the broadcast message for sensing configuration and sensing measurement, and finally periodically returns to the connected state for sensing reporting, which can reduce network connection pressure and UE energy consumption. In the case where the gNB does not page according to the sensing area information, the gNB can also indicate whether the non-connected UE is located in the sensing area and whether to perform sensing measurement by whether the first identifier is carried in the broadcast message. The gNB can not only manage the sensing area in a more fine-grained manner, but also reduce useless measurements and reports of the terminal device.

[0273] It can be understood that in each of the above embodiments, the methods and / or steps implemented by the access network device can also be implemented by components that can be used for the access network device (such as processors, chips, chip systems, circuits, logic modules, DUs or software). Exemplarily, when the executor of each of the above embodiments is the DU in the access network device, the sending or receiving steps performed by the access network device can be replaced by the sending or receiving of the DU, and further can be the sending of the DU to the RU or the receiving of the DU from the RU; the methods and / or steps implemented by the terminal device can also be implemented by components that can be used for the terminal device (such as processors, chips, chip systems, circuits, logic modules, or software); the methods and / or steps implemented by the access and mobility management network element can also be implemented by components that can be used for the access and mobility management network element (such as processors, chips, chip systems, circuits, logic modules, or software); the methods and / or steps implemented by the perception network element can also be implemented by components that can be used for the perception network element (such as processors, chips, chip systems, circuits, logic modules, or software).

[0274] The above mainly introduces the scheme provided by the present application. Accordingly, the present application also provides a communication device, which is used to implement various methods in the above method embodiments. The communication device can be an access network device in the above method embodiments, or a device including an access network device, or a component that can be used for an access network device, such as a chip or a chip system. Alternatively, the communication device can be a terminal device in the above method embodiments, or a device including a terminal device, or a component that can be used for a terminal device, such as a chip or a chip system. Alternatively, the communication device can be an access and mobility management network element in the above method embodiments, or a device including an access and mobility management network element, or a component that can be used for an access and mobility management network element, such as a chip or a chip system. Alternatively, the communication device can be a perception network element in the above method embodiments, or a device including a perception network element, or a component that can be used for a perception network element, such as a chip or a chip system.

[0275] It is understandable that, in order to realize the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0276] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0277] Taking the communication device as the access network device or terminal device or access and mobility management network element or perception network element in the above method embodiment as an example, Figure 6 Schematic diagram of a communication device provided in an embodiment of the present application. Figure 6 As shown, the communication device 600 includes: a processing module 601 and a transceiver module 602. The processing module 601 is used to perform the processing function of the access network device or terminal device or access and mobility management network element or perception network element in the above method embodiment. The transceiver module 602 is used to perform the transceiver function of the access network device or terminal device or access and mobility management network element or perception network element in the above method embodiment.

[0278] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here.

[0279] Since the communication device 600 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiments and will not be repeated here.

[0280] In a possible design scheme, in the embodiment of the present application, the transceiver module 602 may include a receiving module and a sending module ( Figure 6 The transceiver module is used to implement the sending function and the receiving function of the communication device 600.

[0281] In a possible design solution, the communication device 600 may further include a storage module ( Figure 6(not shown in the figure), the storage module stores a program or instruction. When the processing module 601 executes the program or instruction, the communication device 600 can execute Figure 3-Figure 5 The function of the access network device or terminal device or access and mobility management network element or perception network element in any of the methods shown in .

[0282] It should be understood that the processing module 601 involved in the communication device 600 can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module 602 can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0283] For example, Figure 7 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device may be an access network device or a terminal device or an access and mobility management network element or a perception network element, or may be a chip (system) or other parts or components that can be set in an access network device or a terminal device or an access and mobility management network element or a perception network element. Figure 7 As shown, the communication device 700 may include a processor 701, which may execute the above method provided in the embodiment of the present application. Among them, all relevant contents of each step involved in the above method embodiment can be cited, and the technical effects that can be obtained can refer to the above method embodiment, which will not be repeated here.

[0284] In a possible design, the communication device 700 may further include a memory 702 and / or a transceiver 703. The processor 701 is coupled to the memory 702 and the transceiver 703, for example, via a communication bus.

[0285] Combine the following Figure 7 The components of the communication device 700 are described in detail:

[0286] The processor 701 is the control center of the communication device 700, and may be a processor or a general term for multiple processing elements. For example, the processor 701 is one or more central processing units (CPUs), or may be application specific integrated circuits (ASICs), or may be configured to implement one or more integrated circuits of the embodiments of the present application, such as one or more microprocessors (digital signal processors, DSPs), or one or more field programmable gate arrays (FPGAs).

[0287] In one possible design, the processor 701 may perform various functions of the communication device 700 by running or executing a software program stored in the memory 702 and calling data stored in the memory 702 .

[0288] In a specific implementation, as an embodiment, the processor 701 may include one or more CPUs, such as Figure 7 CPU0 and CPU1 are shown in FIG.

[0289] In a specific implementation, as an embodiment, the communication device 700 may also include multiple processors, such as Figure 7 1 and 10. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0290] The memory 702 is used to store the software program for executing the solution of the present application, and the execution is controlled by the processor 701. The specific implementation method can refer to the above method embodiment, which will not be repeated here.

[0291] In a possible design, the memory 702 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 702 may be integrated with the processor 701, or may exist independently and be communicated to the computer through the interface circuit ( Figure 7 (not shown) is coupled to the processor 701, which is not specifically limited in the embodiment of the present application.

[0292] The transceiver 703 is used for communication with other communication devices. For example, if the communication device 700 is a terminal device, the transceiver 703 can be used to communicate with a network device, or with another terminal device. For another example, if the communication device 700 is a network device, the transceiver 703 can be used to communicate with a terminal device, or with another network device.

[0293] In one possible design, the transceiver 703 may include a receiver and a transmitter ( Figure 7 The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0294] In a possible design, the transceiver 703 may be integrated with the processor 701, or may exist independently and communicate with the processor 701 through the interface circuit ( Figure 7 (not shown) is coupled to the processor 701, which is not specifically limited in the embodiment of the present application.

[0295] It should be noted that Figure 7 The structure of the communication device 700 shown in the figure does not constitute a limitation on the communication device, and the actual communication device may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0296] In addition, the technical effects of the communication device 700 can refer to the technical effects of the methods described in the above method embodiments, which will not be repeated here.

[0297] The embodiment of the present application also provides a computer-readable storage medium on which a computer program or instruction is stored. When the computer program or instruction is executed by a computer, the functions of the above-mentioned method embodiment are realized.

[0298] The embodiment of the present application also provides a computer program product, which implements the functions of the above method embodiment when executed by a computer.

[0299] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that contains one or more servers that can be integrated with a medium. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0300] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0301] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0302] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0303] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0304] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0305] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0306] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other changes to the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0307] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A sensing method, characterized in that: include: The first access network device sends a paging message, where the paging message is used to page a terminal device belonging to the first perception group; When the paging is completed, the first access network device sends a first sensing configuration for performing a sensing task.

2. The method according to claim 1, characterized in that The first access network device sending a paging message includes: The first access network device receives a first message from an access and mobility management network element, where the first message is used to request the first access network device to perform perception configuration for a terminal device belonging to the first perception group; The first access network device sends the paging message according to the first message.

3. The method according to claim 2, characterized in that The first message and the paging message include information indicating the first sensing grouping.

4. The method according to claim 2 or 3, characterized in that: The method further comprises: Before receiving the first message, the first access network device sends a radio resource control RRC release message to the first terminal device, and the RRC release message includes information for indicating the perception group to which the first terminal device belongs, and the perception group to which the first terminal device belongs includes the first perception group.

5. The method according to any one of claims 2 to 4, characterized in that: The first message includes information for indicating an area where the sensing task is to be performed; The first access network device sending a paging message includes: The first access network device determines a paging beam according to the information indicating the area for performing the sensing task, and sends the paging message through the paging beam.

6. The method according to claim 5, characterized in that The area where the sensing task is performed is covered by the paging beam.

7. The method according to any one of claims 2 to 6, characterized in that: The first message also includes a second perception configuration, and the second perception configuration is used to indicate a measurement and / or reporting period for performing the perception task within a preset time.

8. The method according to claim 7, characterized in that The second perception configuration includes at least one of the following: information for indicating the perception task, information for indicating measurement of the periodic execution of the perception task, information for indicating reporting of measurement results of the periodic execution of the perception task, information for indicating the time of executing the perception task, or information for indicating the area where the perception task is executed.

9. The method according to claim 7 or 8, characterized in that: The first access network device sends a first sensing configuration for performing the sensing task, including: The first access network device sends a first perception configuration for performing the perception task according to the second perception configuration.

10. The method according to any one of claims 1 to 9, characterized in that The first perception configuration includes at least one of the following: information for indicating the perception task, information for indicating measurement of the periodic execution of the perception task, information for indicating reporting of measurement results of the periodic execution of the perception task, information for indicating the time of executing the perception task, information for indicating the area for executing the perception task, or information for indicating resources for executing the perception task.

11. The method according to any one of claims 1 to 10, characterized in that The first access network device sends a first sensing configuration for performing the sensing task, including: The first access network device receives an RRC recovery request message or an RRC establishment message from the first terminal device, where the RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state; The first access network device sends an RRC reconfiguration message or an RRC release message to the first terminal device, and the RRC reconfiguration message or the RRC release message includes the first perception configuration.

12. The method according to any one of claims 1 to 11, characterized in that The first access network device sends a first sensing configuration for performing the sensing task, including: The first access network device sends a first broadcast message, where the first broadcast message includes the first perception configuration.

13. The method according to any one of claims 1 to 12, characterized in that The method further comprises: The first access network device sends a first sensing signal for performing the sensing task; The first access network device receives a second message from a first terminal device, where the second message is used to indicate the first terminal device to perform a first perception measurement result of the perception task according to an echo signal corresponding to the first perception signal.

14. The method according to claim 13, characterized in that The method further comprises: The first access network device sends a second broadcast message to the first terminal device, and the second broadcast message includes information for indicating whether the first terminal device performs the perception task.

15. The method according to claim 13, characterized in that The method further comprises: The first access network device sends a second broadcast message to the first terminal device, where the second broadcast message includes a first identifier, and the first identifier is used to identify that the first terminal device performs the perception task.

16. The method according to claim 15, characterized in that The first perception measurement result includes the first identifier.

17. The method according to any one of claims 13 to 16, characterized in that The method further comprises: The first access network device sends a third message to the perception network element, where the third message includes the first perception measurement result.

18. A sensing method, characterized in that: include: The first terminal device receives a paging message, where the paging message is used to page a terminal device belonging to a first perception group; In a case where the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from a first access network device.

19. The method according to claim 18, characterized in that The paging message includes information indicating the first sensing group.

20. The method according to claim 18 or 19, characterized in that The method further comprises: Before receiving the paging message, the first terminal device receives a radio resource control RRC release message from the first access network device, and the RRC release message includes information for indicating the perception group to which the first terminal device belongs, and the perception group to which the first terminal device belongs includes the first perception group.

21. The method according to any one of claims 18 to 20, characterized in that In a case where the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from a first access network device, including: In a case where the first terminal device belongs to the first perception group, the first terminal device sends an RRC recovery request message or an RRC establishment message to the first access network device, where the RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state; The first terminal device receives an RRC reconfiguration message from the first access network device, and the RRC reconfiguration message includes the first perception configuration.

22. The method according to any one of claims 18 to 20, characterized in that In a case where the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from a first access network device, including: In a case where the first terminal device belongs to the first perception group, the first terminal device sends an RRC recovery request message or an RRC establishment message to the first access network device, where the RRC recovery request message or the RRC establishment message is used to request recovery from a non-connected state to a connected state; The first terminal device receives an RRC release message from the access network device, and the RRC release message includes the first perception configuration.

23. The method according to any one of claims 18 to 20, characterized in that In a case where the first terminal device belongs to the first perception group, the first terminal device receives a first perception configuration for performing a perception task from a first access network device, including: In the case that the first terminal device belongs to the first perception group, the first terminal device receives a first broadcast message from the first access network device, the first broadcast message includes the first perception configuration, wherein the first terminal device remains in a non-connected state.

24. The method according to any one of claims 18 to 23, characterized in that The method further comprises: In a non-connected state, the first terminal device receives, according to the first sensing configuration, an echo signal corresponding to the first sensing signal used to perform the sensing task; The first terminal device determines a first perception measurement result according to an echo signal corresponding to the first perception signal; The first terminal device sends the first perception measurement result to the first access network device.

25. The method according to claim 24, characterized in that The method further comprises: The first terminal device receives a second broadcast message from the first access network device, where the second broadcast message includes information indicating whether the first terminal device performs the perception task.

26. The method according to claim 24, characterized in that The first terminal device receives, according to the first sensing configuration, an echo signal corresponding to a first sensing signal used to perform the sensing task, including: The first terminal device receives a second broadcast message from the first access network device, where the second broadcast message includes a first identifier, and the first identifier is used to identify that the first terminal device performs the sensing task; The first terminal device receives an echo signal corresponding to a first perception signal used to perform the perception task according to the first identifier and the first perception configuration.

27. The method according to claim 26, characterized in that The first perception measurement result includes the first identifier.

28. The method according to any one of claims 18 to 27, characterized in that The first perception configuration includes at least one of the following: information for indicating the perception task, information for indicating measurement of the periodic execution of the perception task, information for indicating reporting of measurement results of the periodic execution of the perception task, information for indicating the time of executing the perception task, information for indicating the area for executing the perception task, or information for indicating resources for executing the perception task.

29. A communication device, characterized in that: The method comprises a module for executing the method as claimed in any one of claims 1 to 17 or claims 18 to 28.

30. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, and the processor is used to implement the method as described in any one of claims 1-17 or claims 18-28 through a logic circuit or executing code instructions.

31. A communication device, characterized in that: include: processor; The processor is configured to execute a computer program or instruction so that the method according to any one of claims 1 to 17 or claims 18 to 28 is implemented.

32. A communication chip, characterized in that: Instructions are stored therein, and when the chip runs on a communication device, the method according to any one of claims 1 to 17 or claims 18 to 28 is implemented.

33. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction. When the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 17 or claims 18 to 28 is implemented.

34. A computer program product, characterized in that The device comprises a computer program code, and when the computer program code is executed on a communication device, the communication device implements the method according to any one of claims 1 to 17 or claims 18 to 28.

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