Communication method and apparatus

Abstract

A communication method and apparatus, relating to the technical field of communications, and capable of enabling a terminal to send a sensing signal in a non-connected state to reduce air interface consumption. The method comprises: a radio access network (RAN) device sends first indication information and second indication information, wherein the first indication information is used for indicating that a terminal sends a sensing signal to a target region, and the second indication information is used for indicating that the terminal uses a target resource to send the sensing signal; the terminal receives the first indication information and the second indication information in a non-connected state; in the non-connected state, on the basis of the first indication information and the second indication information, the terminal uses a first resource in the target resource to send the sensing signal to the target region; and the RAN device uses the target resource to receive the sensing signal from the target region.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 29, 2023, with application number 202311870586.2 and application name “Communication Method and Device,” the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] Wireless communication networks, such as fifth-generation (5G) and sixth-generation (6G) networks, can provide sensing services. Upon receiving a sensing request, a network function in the wireless communication network can send a request message to a sensing entity (SE) to request that the SE send a sensing signal. However, how the sensing entity sends the sensing signal remains a challenge.

[0004] Summary of the Invention

[0005] The present application provides a communication method and apparatus that can enable a terminal or other device to send a perception signal in a non-connected state, thereby reducing the consumption of air interface resources.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, a communication method is provided. The method can be executed by a terminal device; alternatively, the method can be executed by a module implemented in the terminal device, such as a chip, a chip system, or a circuit; alternatively, the method can be implemented by a logic module or software that implements all or part of the terminal device's functions, without limitation. For ease of description, the following description uses execution by a terminal device as an example.

[0008] The method includes: a first terminal receives first indication information and second indication information in a non-connected state, the first indication information is used to instruct the terminal to send a perception signal to a target area, and the second indication information is used to instruct the terminal to use a target resource to send the perception signal; the first terminal uses a first resource in the target resource to send the perception signal to the target area according to the first indication information and the second indication information in a non-connected state.

[0009] Through this solution, the first terminal can send a perception signal in a non-connected state without first entering a connected state, thereby saving air interface resources.

[0010] In combination with the first aspect, in one possible design, the first indication information includes target area information and one or more of the following: key performance indicators KPI of the perception service, grouping information of the terminal, identity information of the terminal, and identity information of the perception service control function SSCF.

[0011] Through this solution, the first terminal can decide whether to send a perception signal based on the terminal's group information, the terminal's identity information, or the identity information of the perception service control function (SSCF) in the first indication information. Parameters such as the energy of the sent perception signal are determined based on the key performance indicator (KPI) of the perception service, thereby enabling the transmission of the perception signal.

[0012] In combination with the first aspect, in one possible design, the grouping information of the terminal includes an identifier of the access network device and / or an identifier of a cell in the access network device.

[0013] In combination with the first aspect, in a possible design, the perception signal carries identity information of the first terminal, or carries the identity information of the first terminal and a timestamp.

[0014] Through this solution, after receiving the perception signal, the base station, SSCF, etc. can determine whether the first terminal is a legal terminal through the identity information of the first terminal, or whether the first terminal is a terminal that has been registered in the network function such as SSCF, thereby ensuring the accuracy of the perception service and reducing the interference of external terminals on the results of the perception service.

[0015] In combination with the first aspect, in a possible design, a perception signal is sent to a target area using a first resource among the target resources, which also includes: the first terminal sends a third indication information, the third indication information indicates whether the first terminal agrees to provide the perception service, or the third indication information indicates that the first terminal agrees to provide the perception service, or the third indication information indicates that the first terminal does not agree to provide the perception service; the first terminal receives the grouping information of the first terminal.

[0016] Through this solution, the terminal can obtain its own group information, and thus determine whether to send a perception signal based on its own group information and the group information in the first indication information when receiving the first indication information.

[0017] In combination with the first aspect, in a possible design, using the first resource in the target resources to send a perception signal to the target area includes: if the first indication information includes group information of the first terminal or identity information of the first terminal, then using the first resource in the target resources to send a perception signal to the target area.

[0018] Through this solution, the terminal can determine whether to send the perception signal according to its own group information and the group information in the first indication information.

[0019] In combination with the first aspect, in one possible design, the first indication information and the second indication information are sent via a first broadcast message.

[0020] Through this solution, the first indication information and the second indication information are sent in the same broadcast message, saving air interface resources.

[0021] In combination with the first aspect, in one possible design, the second indication information is sent via a physical downlink shared channel.

[0022] Through this solution, the base station can send the second indication information in message 2 (message2), so that the base station only sends the second indication information to the selected terminal, saving air interface resources.

[0023] A second aspect provides a communication method. This method can be executed by a network device; alternatively, it can be executed by a module implemented in the network device, such as a chip, a chip system, or a circuit; alternatively, it can be implemented by a logic module or software that implements all or part of the network device's functions, without limitation. For ease of description, the following description uses execution by a network device as an example.

[0024] The method includes: sending first indication information and second indication information, the first indication information is used to instruct the terminal to send a perception signal to a target area, and the second indication information is used to instruct the terminal to use target resources to send the perception signal, and the terminal is in a non-connected state; using the target resources to receive the perception signal from the target area.

[0025] In combination with the second aspect, in one possible design, the first indication information includes target area information and one or more of the following: perception service key performance indicators KPI, terminal grouping information, terminal identity information, and identity information of the perception service control function SSCF.

[0026] In combination with the second aspect, in one possible design, the grouping information of the terminal includes an identifier of the access network device and / or an identifier of a cell in the access network device.

[0027] In combination with the second aspect, in a possible design, the perception signal includes identity information of the terminal, or includes the identity information of the terminal and a timestamp.

[0028] In conjunction with the second aspect, in one possible design, the identity information of the terminal is associated with the base station accessed by the terminal or the cell of the base station accessed by the terminal. Thus, the SSCF can send data to the base station where the terminal is located through the identity information of the terminal, so that the data is transmitted to the terminal.

[0029] In combination with the second aspect, in a possible design, there are multiple target resources, and using the target resources to receive the perception signal includes: receiving the perception signal sent by the first terminal from the first target resource, and receiving the perception signal sent by the second terminal from the second target resource.

[0030] In combination with the second aspect, in a possible design, before sending the first indication information, it also includes: receiving a first request message, the first request message is used to request a perception entity (such as a terminal) to send a perception signal, the perception entity can be a non-connected terminal, the first request message includes target area information and one or more of the following: perception service key performance indicators KPI, terminal grouping information, terminal identity information, perception service control function SSCF identity information or DSID.

[0031] Through this solution, the base station can receive the first request message and send the first indication information and the second indication information to the terminal according to the first request message.

[0032] In combination with the second aspect, in a possible design, after sending the first indication information, it also includes: sending a response message to the first request message, and the response message is used to indicate that the first indication information has been sent.

[0033] Through this solution, the terminal replies with a response message after sending the first indication information, so that the device that sent the first request message performs subsequent operations.

[0034] In combination with the second aspect, in one possible design, the first indication information and the second indication information are sent via a first broadcast message.

[0035] In combination with the second aspect, in one possible design, the response message is also used to indicate that the second indication information has been sent.

[0036] A third aspect provides a communication method. This method can be performed by a perception service control function; alternatively, it can be performed by a module implemented in the perception service control function, such as a chip, a chip system, or a circuit; alternatively, it can be implemented by a logic module or software that implements all or part of the perception service control function, without limitation. For ease of description, the following description uses the perception service control function as an example.

[0037] The method includes: sending a first request message, where the first request message is used to request a sensing entity (such as a terminal) to send a sensing signal, where the sensing entity may be a terminal in a non-connected state;

[0038] A response message is received, where the response message is used to indicate that the device receiving the first request message has sent first indication information, where the first indication information is used to instruct the terminal to send a perception signal to the target area.

[0039] In combination with the third aspect, in one possible design, the first request message includes target area information and one or more of the following: perception service key performance indicators KPI, terminal grouping information, terminal identity information, and identity information or DSID of the perception service control function SSCF.

[0040] In combination with the third aspect, in one possible design, sending the first request message includes: sending a first request message to AMF.

[0041] In combination with the third aspect, in one possible design, sending the first request message includes: sending the first request message to the access network device according to the grouping information of the terminal.

[0042] In combination with the third aspect, in one possible design, the grouping information of the terminal includes an identifier of the access network device and / or an identifier of a cell in the access network device.

[0043] In combination with the third aspect, in a possible design, sending a first request message to the access network device according to the grouping information of the terminal includes: determining the identifier of the access network device according to the grouping information of the terminal, and sending the first request message to the access network device.

[0044] A fourth aspect provides a communication method. This method can be performed by an access and mobility management function; alternatively, it can be performed by a module implemented in the access and mobility management function, such as a chip, a chip system, or a circuit; alternatively, it can be implemented by a logic module or software capable of implementing all or part of the access and mobility management function, without limitation. For ease of description, the following description uses the access and mobility management function as an example.

[0045] The method includes: receiving a first request message, where the first request message is used to request a perception entity (such as a terminal) to send a perception signal, and the perception entity may be a terminal in a non-connected state; and sending the first request message.

[0046] Through this solution, the access and mobility management function can send a first request message to the terminal, so that the terminal receives the first request message and sends a perception signal in a non-connected state, saving air interface resources.

[0047] A fifth aspect provides a communication method. This method can be performed by unified data management; alternatively, it can be performed by a module implemented in unified data management, such as a chip, chip system, or circuit; alternatively, it can be implemented by a logic module or software capable of implementing all or part of unified data management, without limitation. For ease of description, the following description uses unified data management as an example.

[0048] The method includes: receiving third indication information, wherein the third indication information indicates whether the first terminal agrees to provide perception services, or the third indication information indicates that the first terminal agrees to provide perception services, or the third indication information indicates that the first terminal does not agree to provide perception services; receiving fourth indication information, wherein the fourth indication information indicates the location of the first terminal; and sending grouping information of the first terminal, wherein the grouping information of the first terminal is determined based on the third indication information and the fourth indication information.

[0049] Through this solution, the unified data management can determine the grouping information of the terminal according to the third indication information and the fourth indication information, so that the terminal device obtains its own grouping information.

[0050] In a sixth aspect, a communication method is provided, the method including: a radio access network RAN ​​device sends first indication information and second indication information, the first indication information is used to instruct the terminal to send a perception signal to a target area, and the second indication information is used to instruct the terminal to use target resources to send the perception signal; the terminal receives the first indication information and the second indication information in a non-connected state; the terminal uses a first resource in the target resources to send a perception signal to the target area according to the first indication information and the second indication information in a non-connected state; the RAN device receives the perception signal from the target area using the target resources.

[0051] In combination with the sixth aspect, in a possible design, before the RAN device sends the first indication information, it also includes: the perception service control function SSCF sends a first request message, the first request message is used to request the perception entity (such as a terminal) to send a perception signal, and the perception entity can be a non-connected terminal; the RAN device receives the first request message.

[0052] In combination with the sixth aspect, in a possible design, before the RAN device receives the first request message, it also includes: the access and mobility management function AMF receives the first request message; the AMF sends a second request message, and the second request message is related to the first request message.

[0053] In combination with the sixth aspect, in a possible design, before the RAN device sends the first indication information and the second indication information, it also includes: the terminal sends a third indication information, the third indication information indicates whether the first terminal agrees to provide the perception service, or the third indication information indicates that the first terminal agrees to provide the perception service, or the third indication information indicates that the first terminal does not agree to provide the perception service; AMF receives the third indication information; UDM receives fourth indication information (such as Nudm_UECM_Update message), the fourth indication information indicates the location of the first terminal; UDM sends the terminal's grouping information, and the terminal's grouping information is determined based on the third indication information and the fourth indication information; the terminal receives the terminal's grouping information.

[0054] In the seventh aspect, a system is provided, comprising a first communication device and a second communication device, wherein the first communication device executes the method described in the first aspect and any one of its implementations, and the second communication device executes the method described in the second aspect and any one of its implementations.

[0055] In an eighth aspect, a communication device is provided, comprising a memory and a processor; the memory is used to store computer instructions, and when the processor executes the instructions, the electronic device executes the method as described in the first to fifth aspects and any one of the implementation methods therein.

[0056] In the ninth aspect, a chip system is provided, comprising: a processor and an interface circuit; the processor and the interface circuit are interconnected through a line; the interface circuit is used to read instructions stored in a memory, and when the instructions are executed by the processor, the chip system executes the method described in the first aspect and any one of its implementations.

[0057] In a tenth aspect, a chip system is provided, comprising a processor configured to support an electronic device in implementing the functions described in the first aspect. In one possible design, the chip system further comprises a memory configured to store program instructions and data necessary for the electronic device. The chip system may consist solely of a chip or may include a chip and other discrete components.

[0058] In an eleventh aspect, an electronic device is provided, which has the function of implementing any of the methods described in the first aspect. The function can be implemented through hardware or through hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0059] In a twelfth aspect, an electronic device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading instructions in the memory, execute any method as described in the first aspect above according to the instructions.

[0060] In a thirteenth aspect, a computer-readable storage medium is provided, comprising computer instructions, which, when executed on a communication device, enable the communication device to execute the method described in the first aspect and any one of its implementations.

[0061] In a fourteenth aspect, a computer program product is provided. When the computer program product is run on a computer, the computer is caused to execute the method as described in the above aspects and any possible implementation thereof.

[0062] It can be understood that the beneficial effects that can be achieved by the methods, devices, computer-readable storage media, computer program products, etc. provided in the second to fourteenth aspects above can refer to the beneficial effects of the first aspect provided above and any possible implementation method, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] FIG1 is an architecture diagram of a communication system provided in an embodiment of the present application;

[0064] FIG2 is an architecture diagram of another communication system provided in an embodiment of the present application;

[0065] FIG3 is a schematic diagram of a scenario provided by an embodiment of the present application;

[0066] FIG4 is a schematic diagram of a process flow provided in an embodiment of the present application;

[0067] FIG5 is another schematic diagram of a process flow provided in an embodiment of the present application;

[0068] FIG6 is another schematic diagram of a process flow provided in an embodiment of the present application;

[0069] FIG7 is another schematic diagram of a process flow provided in an embodiment of the present application;

[0070] FIG8 is another schematic diagram of a process according to an embodiment of the present application;

[0071] FIG9 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0072] FIG10 is a schematic diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0073] In the description of this application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0074] In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0075] In addition, to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or execution order, and the words "first" and "second" do not necessarily mean different.

[0076] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0077] It will be understood that the “embodiment” mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It will be understood that in the various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0078] It can be understood that in this application, "when" and "if" both mean that corresponding processing will be taken under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing, nor do they mean that there are other limitations.

[0079] It is understood that some optional features in the embodiments of the present application may, in certain scenarios, be implemented independently of other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects. They may also be combined with other features in certain scenarios as needed. Accordingly, the devices provided in the embodiments of the present application may also implement these features or functions accordingly, which will not be described in detail here.

[0080] In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments in this application, and the various implementation methods / implementation methods / implementation methods in each embodiment, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment are consistent and can be referenced to each other. The technical features in different embodiments and the various implementation methods / implementation methods / implementation methods in each embodiment can be combined to form new embodiments, implementation methods, implementation methods, or implementation methods according to their inherent logical relationships. The implementation methods of this application described below do not constitute a limitation on the scope of protection of this application.

[0081] The technical solution provided in the embodiments of the present application can be used in various communication systems, which may be a third generation partnership project (3GPP) communication system, for example, a fourth generation (4G) long term evolution (LTE) system, a fifth generation (5G) mobile communication system and its evolution system, a vehicle to everything (V2X) system, a system of LTE and NR hybrid networking, or a device to device (D2D) system, a machine to machine (M2M) communication system, an Internet of Things (IoT), and other next generation communication systems.

[0082] Among them, the above-mentioned communication system applicable to the embodiment of the present application is only an example, and the communication system applicable to the embodiment of the present application is not limited to this. It is described here uniformly and will not be repeated below.

[0083] The communication system of the embodiment of the present application can implement wireless sensing technology, or have the ability to process sensing services. The communication system can use the sensing data of an object and its surrounding environment for analysis to obtain information related to the object or environment. For example, in an intrusion detection scenario, it can sense whether there is an intruder (such as a person or object). For another example, it can sense the road environment to see whether there are pedestrians or objects entering the lane. The communication system may include a sensing entity, which refers to a data source that converts wireless signals into raw sensing data through data processing. The sensing entity can be a user terminal (UE) or a base station, or an independent sensing entity. The sensing entity includes a sensing signal sending entity (sensing transmitter, referred to as the sending entity Tx) and a sensing signal receiving entity (sensing receiver, referred to as the receiving entity Rx). Tx sends a sensing signal. Rx receives the sensing signal from Tx and sends the received sensing signal to a device for processing the sensing data (such as a sensing data processing function), or processes the received sensing signal and sends the processed sensing data to a device for processing the sensing data (such as a sensing data processing function) or a device that uses the sensing data (such as a terminal).

[0084] For example, refer to Figure 1, which is an architecture diagram of a communication system provided in an embodiment of the present application. The communication system may include the following components: a sensing service control function (SSCF), a sensing data processing function (SDPF), an access and mobility management function (AMF), a unified data management (UDM), a radio access network (RAN) node (such as RAN1 and RAN2), and a UE (such as UE1 and UE2). The SSCF and each component can communicate in the following manner: the SSCF, AMF and UDM communicate based on the service-based interface (SBI), the SSCF and SDPF communicate through a dedicated interface, the SSCF and RAN communicate indirectly through the AMF (such as the N2 interface) or directly through the Ns_C interface. The SDPF and RAN communicate directly through the Ns_D interface.

[0085] The SSCF can be used to implement one or more of the following functions, or provide one or more of the following services: receiving capability registration of perception entities, implementing the orchestration of perception services (such as Tx selection, Rx selection, configuration information delivery, and data bearer establishment), perception service lifecycle management, generating billing events, generating incentive events, orchestrating policy delivery, and perception service continuity management. The SSCF can register the services it provides with the network repository function (NRF) so that other network devices can read the SSCF services through the NRF.

[0086] SDPF can be used to implement one or more of the following functions: perception data processing, data routing and forwarding, and policy implementation (e.g., implementing policies based on quality of service (QoS), billing, incentives, and security requirements). SDPF can provide the network exposure function (NEF) with a data exposure interface, UE Internet Protocol, IP address management, and data privacy protection. Perception data processing can include calculating perception measurement data from raw perception data and calculating perception results from the perception measurement data.

[0087] A RAN node, also known as a radio access network device, RAN entity, RAN equipment, or access node, facilitates wireless access to a communication system by a terminal. In one application scenario, a RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node.

[0088] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing portions of the base station's functions. For example, a RAN node can be a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU implements the base station's radio resource control protocol and packet data convergence protocol (PDCP) functions, as well as the service data adaptation protocol (SDAP) functions. The DU implements the base station's radio link control layer and medium access control (MAC) layer functions, as well as some or all of the physical layer functions. For detailed descriptions of each of the above protocol layers, please refer to the relevant 3GPP technical specifications. The RU can be used to implement the transmission and reception of radio frequency signals. The CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as in a baseband unit (BBU). The RU can be included in radio frequency equipment, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0089] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU may be called an open CU (O-CU), a DU may be called an open DU (O-DU), and a RU may be called an open RU (O-RU). The RAN node in the embodiments of the present application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. For example, the RAN node may be a server loaded with the corresponding software module. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For ease of description, the following description takes a base station as an example of a RAN node.

[0090] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0091] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0092] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0093] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0094] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be subject to interference from signals in neighboring cells.

[0095] In some embodiments, the system may also include sensing service subscriber management (SSSM). SSSM can implement one or more of the following functions: user registration, user subscription and cancellation of service subscriptions, and authorization and authentication of users by third-party apps. SSSM can communicate with other network elements (such as SSCF, AMF, UDM, etc.) via SBI.

[0096] For example, refer to Figure 2, which is an architectural diagram of another communication system provided in an embodiment of the present application. The communication system includes the component units of the communication system shown in Figure 1 and also includes a data communication proxy (DCP). RAN nodes (such as RAN1, RAN2) and SDPF can communicate through DCP. DCP is used to provide a medium for transmitting data for various network functions between communication systems. For example, RAN nodes (such as RAN1, RAN2) publish data (such as perception data, artificial intelligence (AI) data or Internet of Things (IOT) data, etc.) in the form of a message topic (topic) to the DCP, and then the SDPF reads the data from the DCP using the same message topic.

[0097] As another example, the network units of the above-mentioned communication system can communicate through a one-to-one interface. For example, the architecture of the communication system can also be a reference point architecture.

[0098] It should be noted that the communication system described in the embodiment of the present application is intended to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0099] Referring to Figure 3, the perception service can be performed within a certain area. For example, in an intrusion detection scenario, the SSCF can arrange for the Tx in area 1 (such as UE1 to UE3) to send a signal to area 2, and the Rx (such as base station 1) receives the signal sent by the Tx. When the SSCF uses the base station as the perception entity, it can be authorized by the base station without authorization. When the SSCF uses the UE as the perception entity, it needs to be authorized by the UE. In the related technology, when a UE in a non-connected state (such as an idle state and a deactivated state) is used as a perception entity, the UE is required to enter a connected state first, and then perform the sending or receiving of the perception signal that the perception entity needs to perform. The steps of the related technology are shown in Figure 4.

[0100] S1. SSCF receives a sensing service request from an application function (AF).

[0101] S2. SSCF arranges the sensing entity according to the sensing service. In other words, according to the sensing service request of AF, it selects the sensing entity to execute the service.

[0102] S3. The SSCF sends a paging message to the AMF. The paging message includes the UE identity (UEID) and the data service identity (DSID). In the case of an awareness service, the data service is an awareness service. The terminal can forward data based on the DSID.

[0103] S4. The AMF sends a paging message to the base station. The paging message includes the UEID and the awareness service identifier. The awareness service identifier indicates that the paging is for the awareness service.

[0104] S5. The base station sends a paging message to the UE, where the paging message includes the UEID and the awareness service identifier.

[0105] S6. The UE sends an RRC establishment request, such as mt-SensingService. mt-SensingService indicates that the request message is sent by the UE.

[0106] S7. The base station sends a service request to the AMF, such as mt-DataService.

[0107] Authentication and encryption are performed between S8, UE and AMF.

[0108] S9. The AMF sends a start message for the perception service to the UE, such as the perception service type, DSID, and key performance indicators (KPIs) of the perception service. S4 to S9 are the process of paging the UE.

[0109] S10. The UE sends a perception service start response message to the AMF.

[0110] S11. The AMF sends a sensing data bearer establishment request to the base station. The sensing data bearer establishment request includes the UEID and DSID. The base station can forward data based on the DSID and establish the sensing data bearer.

[0111] S12. The base station sends an RRC reconfiguration message to the UE, thereby establishing a perception data bearer.

[0112] S13. The UE sends an RRC reconfiguration completion message to the base station.

[0113] S14. The base station sends a perception data bearer establishment response to the AMF.

[0114] S15. AMF sends a paging response to SSCF.

[0115] It can be seen from the above steps that after the UE is configured and arranged as a perception entity, it needs to enter the connected state before it can perform perception operations, such as receiving or sending perception signals. This process consumes a lot of air interface resources and takes a long time to prepare. It takes a long time for the AF to obtain the perception results. Based on this, the present application provides a communication method that enables the UE to send perception signals in a non-connected state when acting as a Tx, thereby reducing the air interface resources consumed by the UE when entering the connected state. The communication method provided in an embodiment of the present application is described below in conjunction with the communication system shown in Figure 1.

[0116] It should be noted that in the following embodiments of the present application, the message names, parameter names, or information names between various network functions or network units are only examples. In other embodiments, they may also be other names, and the method provided in this application does not make specific limitations on this.

[0117] 5 , taking a base station as an Rx and a UE in a non-connected state as a Tx as an example, the communication method provided in an embodiment of the present application includes S501 , S502 and S504 .

[0118] S501: A base station sends first indication information and second indication information. Correspondingly, a terminal receives the first indication information and the second indication information in a non-connected state.

[0119] The first indication information is used to instruct the terminal to send a perception signal to a target area. The second indication information is used to instruct the terminal to use a target resource to send the perception signal. The target area may also be referred to as a perception area.

[0120] Exemplarily, the first indication information and / or the second indication information is sent via broadcast, and terminals within the coverage of the base station can receive the broadcast message sent by the base station.

[0121] In some embodiments, the first indication information includes target area information and one or more of the following: perception service KPI, terminal group information, terminal identity information, and perception service control function SSCF identity information.

[0122] Illustratively, the target area information may be GPS information, and the area surrounded by the GPS information may be the target area.

[0123] For example, the perception service KPI may include speed assessment accuracy, location assessment accuracy, resolution, latency, refresh rate, missed detection probability, false detection probability, etc. The UE may determine the energy level and duration of sending the perception signal based on the perception service KPI.

[0124] Exemplarily, the identity information of the terminal may be UEID.

[0125] In some embodiments, the first indication information and the second indication information are sent in the same message. For example, the first indication information and the second indication information are sent via a first broadcast message.

[0126] In some embodiments, the first indication information instructs a terminal to send a perception signal to a target area. The second indication information instructs a terminal to use a target resource to send the perception signal. The target resource is a resource.

[0127] Exemplarily, after UE1 and UE2 receive the first indication information, UE1 and UE2 may perform subsequent steps, such as S502 or S503.

[0128] As another example, take the case where the first indication information includes the terminal's group information. After UE1 and UE2 receive the first indication information, UE1 and UE2 can each determine whether their own group information is the same as the terminal's group information included in the first indication information. If their own group information is the same as the terminal's group information included in the first indication information, subsequent steps, such as S502 or S503, are performed. That is, if the first indication information includes UE1's group information, UE1 uses the first resource in the target resources to send a perception signal to the target area. If the first indication information includes UE2's group information, UE2 uses the first resource in the target resources to send a perception signal to the target area.

[0129] As another example, taking the case where the first indication information includes the identity information of the terminal, UE1 and UE2 can both determine whether their own identity information is the same as the identity information of the terminal included in the first indication information. If their own identity information is the same as the identity information of the terminal included in the first indication information, subsequent steps, such as S502 or S503, are performed. In other words, if the first indication information includes (or is referred to as carrying) the identity information of UE1, UE1 uses the first resource in the target resources to send a perception signal to the target area.

[0130] As another example, take the case where the first indication information does not include the terminal's grouping information or the terminal's identity information. After receiving the first indication information, the terminal can decide whether to participate in the perception service. For example, if the terminal decides to participate in the perception service, the terminal can execute subsequent steps, such as S502 or S503. If the terminal decides not to participate in the perception service, the terminal may not execute subsequent steps. The terminal can determine the perception service indicated by the first indication information based on the identity information of the SSCF. Alternatively, the first indication information also includes the type of perception service. The terminal decides whether to participate in the perception service based on the type of perception service.

[0131] In other embodiments, the first indication information instructs multiple terminals to send perception signals to a target area. The second indication information instructs multiple terminals to use target resources to send perception signals. The target resources are multiple resources. Exemplarily, the multiple resources can be multiple resources with the same time but different spectra, or multiple resources with different time and spectra, or multiple resources with different time and spectra.

[0132] In some embodiments, the number of UEs meeting the requirements for a sensing sending entity is greater than the number of sensing entities required for the sensing service. For example, if UE1 and UE2 both need to send a sensing signal after receiving the first indication information, but only one UE is required as a sensing signal sending entity according to the SSCF's orchestration, UE1 and UE2 can preempt the first resource. Referring to FIG6 , this embodiment of the present application further includes the following steps.

[0133] S601. UE1 sends message 1 (message 1) to a base station via a physical random access channel (PRACH).

[0134] S602. UE2 sends message Message1 to the base station in prach.

[0135] In the case where multiple UEs send message1 messages to the base station, the base station may send a response message of the prach message to the determined UE. For example, the base station first receives the message1 message sent by UE1, determines that UE1 is the perception entity, and may execute S603.

[0136] S603: The base station sends message 2 (message 2) to UE1 via the physical downlink shared channel (PDSCH). The base station obtains the UE's timing advance (TA) based on the content of message 1 and then executes S603. Accordingly, UE1 receives message 2 from the base station.

[0137] The response message to the prach message may include the TA. UE1 can then confirm that it has seized the first resource, adjust the transmission timing according to the TA, and execute subsequent steps, such as S502. If UE2 does not receive the message2 message sent by the base station, it may not execute subsequent steps.

[0138] In some embodiments, S603 may be a broadcast message sent by the base station, that is, both UE1 and UE2 may receive the message2 message sent by the base station to UE1, and the message2 message may carry the identity information of UE1, so that UE1 and UE2 determine that UE1 has established a connection with the base station based on the identity information of UE1, so that UE1 continues to perform subsequent operations and UE2 no longer performs subsequent operations.

[0139] For another example, if UE1 to UE5 all receive the first broadcast information, and the grouping information of UE1 to UE5 is the same as the UE grouping information in the first indication information, but only two UEs are required as perception signal sending entities, and only the first resource and the second resource are used to send the perception signal, then UE1 to UE5 can preempt the first resource and the second resource. The preemption method of UE1 to UE5 can refer to the above embodiment and will not be repeated here.

[0140] In some other embodiments, the first indication information and the second indication information are sent in different messages. For example, referring to FIG7 , S501 can be implemented as S5011 and S5012.

[0141] S5011: The base station sends first indication information. Correspondingly, the UE receives the first indication information.

[0142] S5012: The base station sends second indication information. Correspondingly, the UE receives the second indication information.

[0143] Exemplarily, S5012 may be implemented as S603 shown in FIG. 6 , that is, the message Message2 in S603 includes the second indication information.

[0144] After the UE receives the first indication information, if the UE meets the conditions for the perception sending entity, the UE can send a message1 message to the base station. If the number of UEs that meet the conditions for the perception sending entity is greater than the number of perception entities required for the perception service, the base station can reply to the UE with a message2 message based on the number of perception entities required for the perception service. For example, after receiving the first indication information, UE1 to UE5 all send a message1 message to the base station, and the perception service requires 2 UEs as Tx. Assuming that the base station selects UE1 and UE2 as the perception signal sending entities, the base station can send a message2 message to UE1 and UE2.

[0145] In some embodiments, the base station sends second indication information indicating different target resources to UE1 and UE2, respectively. For example, the second indication information sent by the base station to UE1 indicates the first target resource, and the second indication information sent by the base station to UE2 indicates the second target resource. UE1 and UE2 then send perception signals to the target area on the target resources indicated by the respective received second indication information. The base station may send a response message to UE3 to UE5, indicating that UE3 to UE5 were not selected as Tx and that UE3 to UE5 do not need to send perception signals. The base station may also not send a response message to UE3 to UE5. If UE3 to UE5 does not receive the second indication information, it will no longer send perception signals.

[0146] In some other embodiments, the base station sends message 2 carrying the second indication information to UE1 and UE2 respectively. If UE3 to UE5 do not receive message 2, they will not continue to perform subsequent steps, that is, they will not send the perception signal.

[0147] In some embodiments, the second indication information includes a DSID.

[0148] S502: UE1 sends a perception signal to the target area using a first resource among target resources according to the first indication information and the second indication information in a non-connected state.

[0149] In some embodiments, the perception signal includes the identity information of UE1, or the perception signal includes the identity information and timestamp of UE1. Through this solution, the base station can report the identity information of UE1 to the core network, and the operator can reward UE1 based on the identity information of UE1, for example, give UE1 points, reward UE1, etc. In addition, the base station can directly send the first indication information and the second indication information to UE1 when the subsequent SSCF arranges the perception entities within the coverage of the base station based on the identity information of UE1, instead of sending broadcast messages, thereby saving communication resources. In addition, the base station can determine whether UE1 is a compliant UE based on the identity information of UE1, for example, the UE whose identity information is pre-existing in the first table is a compliant UE. If there is a non-compliant UE, such as an intruded UE or a fake UE, the base station can determine not to use the perception signal provided by the UE based on the identity information of the UE, thereby increasing the accuracy of the perception service.

[0150] In some embodiments, such as when multiple UEs are configured as Tx, the method of the embodiment of the present application may further include S503.

[0151] S503: UE2 sends a perception signal to the target area using the second resource in the target resources according to the first indication information and the second indication information in the non-connected state.

[0152] In some embodiments, the perception signal includes identity information of UE2, or the perception signal includes identity information of UE2 and a timestamp.

[0153] S504: The base station receives a sensing signal from a target area using target resources.

[0154] Exemplarily, when there are multiple target resources, the base station may receive perception signals sent by multiple UEs, for example, receiving the perception signal sent by UE1 on a first resource and receiving the perception signal sent by UE2 on a second resource.

[0155] The base station can obtain perception signal data such as the arrival angle of the perception signal based on the perception signal received from one or more UEs, and determine whether there are obstacles, intruders, etc. in the target area. The base station can send the received perception signal data to the SDPF, or process the received perception signal data and send it to the SDPF, for example, through the user port function (UPF), through the DCP, or directly to the SDPF. Through this solution, when the UE is scheduled as Tx, the UE can send the perception signal in a non-connected state without having to enter a connected state first and then send the perception signal, thereby saving communication resources, reducing the delay in sending the perception signal, and improving communication efficiency.

[0156] In some embodiments, after receiving the request message from the SSCF, the base station executes S501. Referring to Figure 7, S501 also includes S701 before S501.

[0157] S701: SSCF sends a first request message. Correspondingly, a base station receives the first request message.

[0158] The first request message is used to request a non-connected UE to send a perception signal.

[0159] The SSCF may determine the target area according to the request of the AF, arrange the Rx and Tx corresponding to the target area, and send a first request message to the base station in the target area.

[0160] Exemplarily, the first request message includes target area information and one or more of the following: key performance indicator KPI of the perception service, group information of the UE, identity information of the UE, identity information or DSID of the perception service control function SSCF.

[0161] In some embodiments, S701 may be implemented as S7011 and S7012.

[0162] S7011. SSCF sends a first request message to AMF.

[0163] Exemplarily, the SSCF may transmit the first request message via a Namf_Communication_NonUeN2MessageTransfer.

[0164] S7012. AMF sends a second request message to the base station. The second request message is related to the first request message. The second request message is used to request the non-connected UE to send a perception signal.

[0165] In some embodiments, S701 may be implemented as S7013.

[0166] S7013. SSCF sends a first request message to the base station.

[0167] Exemplarily, the SSCF may send a first request message to the base station based on the grouping information of the UE. For example, the grouping information of the UE may include the cell identifier (such as the cell ID) of the cell where the UE is located, or include the base station identifier (such as the base station ID) to which the UE belongs in the cell. The SSCF determines the identifier of the base station based on the grouping information of the UE and sends the first request message to the base station. That is, the SSCF may send the first request message to the base station corresponding to the cell ID or base station ID included in the grouping information based on the grouping information of the UE. By setting the grouping information of the UE to be associated with the cell or base station where the UE is located, the SSCF can send the first request message to the specified base station when sending the first request message, without sending a large number of first request messages, thus saving air interface resources.

[0168] It should be noted that, since the sending entity and the receiving entity of the first request message are different, the first request message in S7011 to S7013 may be a request message with a different format, such as a different signaling name for sending the first request message.

[0169] In some embodiments, after S501 or after S5011, S702 is further included.

[0170] S702: The base station sends a response message to the first request message. Correspondingly, the SSCF receives the response message. The response message is used to indicate that the base station has sent the first indication information.

[0171] The base station sends the response information, so that the SSCF determines that the base station has sent the first indication information to the UE, so that the SSCF can perform subsequent operations according to the response information.

[0172] The above embodiment introduces the process of SSCF indicating Rx and Tx according to the request of AF. The following describes how to find the process related to UE1 after SSCF arranges UE1 as Tx. The UE can send a third indication message to the UDM to indicate whether it agrees to provide the perception service, and the UDM allocates group information to the UE. When arranging the perception entity, the SSCF can obtain from the UDM which UEs can provide perception services, and obtain the group information of these UEs to arrange these UEs. Referring to Figure 8, the embodiment of the present application includes the following steps, and the following steps can be placed before S701.

[0173] S801: UE1 sends third indication information. Correspondingly, UDM receives relevant content of the third indication information.

[0174] The third indication information indicates whether UE1 agrees to provide the perception service, or the third indication information indicates that UE1 agrees to provide the perception service, or the third indication information indicates that UE1 does not agree to provide the perception service.

[0175] Exemplarily, the third indication information may be sent in a capability registration request message or a capability update request message.

[0176] Exemplarily, the third indication information may be identified by one bit, for example, 1 indicates that UE1 agrees to provide the awareness service, and 0 indicates that UE1 does not agree to provide the awareness service.

[0177] Exemplarily, the AMF receives the third indication information, and sends the relevant content of the third indication information to the UDM after encapsulation based on the communication protocol or communication interface between the AMF and the UDM.

[0178] S802: The UDM receives fourth indication information.

[0179] The fourth indication information indicates the location of UE1.

[0180] Exemplarily, in S801, the UE may send the relevant content of the third indication information to the UDM through the AMF. When forwarding the relevant content of the third indication information, the AMF may obtain the location of UE1, and the AMF may send the location of UE1 to the UDM. The location may refer to the range of UE1, for example, UE1 is within the coverage range of base station 1, or UE1 is located in cell 1 of base station 1, or UE1 is between the coverage ranges of base station 1 and base station 2, and so on.

[0181] In some embodiments, the third indication information and the fourth indication information are sent in the same message, for example, a Nudm_UECM_Update_Request message.

[0182] In some embodiments, the AMF may not send the address of UE1 to the UDM, and the UDM may determine the address of UE1 through the address of the AMF.

[0183] S803: UDM sends the group information of UE1. Correspondingly, UE1 receives the group information of UE1.

[0184] UE1's grouping information is determined based on the third indication information and the fourth indication information. The UDM can use the third indication information to determine whether to allocate grouping information to UE1. If UE1 agrees to provide the awareness service, the grouping information is allocated to UE1. If UE1 disagrees to provide the awareness service, the grouping information is not allocated to UE1. The UDM can use the fourth indication information to determine the value of UE1's grouping information. For example, if UE1 is located in area 3, UE1's grouping information is group 1. If UE1 is located in area 4, UE1's grouping information is group 2.

[0185] S803 may be implemented as follows: UDM sends UE1's group information to AMF, and AMF sends UE1's group information to UE1. For example, UDM may send a Nudm_UECM_Update_Response message to AMF. AMF may send a response message to UE1, such as a capability registration request message or a capability update request message.

[0186] UE1 can save the grouping information sent by the UDM. In addition, when UE1 receives the first indication information, UE1 can determine whether the UE grouping information in the first indication information is the same as UE1's own grouping information. If the UE grouping information in the first indication information is the same as UE1's own grouping information, UE1 can send a mas1 message to the base station to send a perception signal.

[0187] The grouping information of UE1 may be response information of the third indication information.

[0188] It should be noted that UE1 can send the third indication information periodically or aperiodically. For example, UE1 can send the third indication information every 5 minutes. For another example, UE1 can send the third indication information each time it changes cells or base stations. This allows the UDM to receive updated UE1's perception service settings. Furthermore, after UE1 moves, the UDM can promptly assign new grouping information to UE1, thereby obtaining more accurate UE1 grouping information during subsequent SSCF UE orchestration.

[0189] After receiving the sensing service request from the AF, the SSCF orchestrates the sensing entity according to the sensing service request, enabling the sensing entity to send and receive signals to the target area of ​​the sensing service request, thereby implementing the sensing service. The SSCF may execute S804 and S805 to obtain grouping information of the sensing entity and indicate the grouping information of the sensing entity to entities such as terminals and base stations, so that the entity receiving the first indication information determines whether to be assigned as a sensing entity or whether to send or receive sensing signals.

[0190] S804: The SSCF sends a second request message. Correspondingly, the UDM receives the second request message.

[0191] The second request message carries the UEID.

[0192] For example, the SSCF can record the UE ID and UE location when the UE registers, assign UEs as sensing entities based on their locations during scheduling, and send the UE IDs of the scheduled sensing entities to the UDM. The UDM can then feedback group information corresponding to the UE to the SSCF based on the UE ID.

[0193] S805: The UDM sends a response message to the second request message. Correspondingly, the SSCF receives the response message to the second request message.

[0194] The response message to the second request message includes the grouping information of the UE and indication information of whether the UE agrees to provide the awareness service.

[0195] According to S801 to S803, the UDM stores the UE's group information and the indication information of whether the UE agrees to provide the awareness service. Therefore, the SSCF can send the first request message according to the response message of the second request message.

[0196] Through this solution, the SSCF can obtain the UE's grouping information and indicate the UE's grouping information when the SSCF sends the first indication information, so that the UE that receives the first indication information can compare its own grouping information with the UE's grouping information in the first indication information. If the UE's grouping information is the same as or matches the grouping information in the first indication information, the UE can send message1 to the base station. The matching of the UE's grouping information with the grouping information in the first indication information may mean that the grouping information in the first indication information includes or covers the UE's grouping information.

[0197] In the various embodiments of the present application, unless otherwise specified or logically conflicting, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. For example, the above-mentioned multiple embodiments can be combined, and the combined scheme can be implemented. Optionally, some operations in the process of each method embodiment are optionally combined, and / or the order of some operations is optionally changed. In addition, the execution order between the steps of each process is only exemplary and does not constitute a limitation on the execution order between the steps. Other execution orders can also be used between the steps. It is not intended to indicate that the execution order is the only order in which these operations can be performed. Ordinary technicians in this field will think of various ways to reorder the operations in this article. In addition, it should be noted that the process details involved in a certain embodiment of this article are also applicable to other embodiments in a similar manner, or different embodiments can be used in combination.

[0198] It is understood that, in order to implement the functions in the above embodiments, the base station and the terminal include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of the various examples described in the embodiments disclosed in this application, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0199] Figures 9 and 10 are schematic diagrams of the structures of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above-mentioned method embodiments, and thus can also achieve the beneficial effects possessed by the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be UE1, UE2 as shown in Figure 1, or RAN1, RAN2 as shown in Figure 1, or SSCF, SDPF, UDM or AMF as shown in Figure 1, etc., or a module (such as a chip) applied to UE, RAN, SSCF, SDPF, UDM or AMF.

[0200] As shown in Figure 9, the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320. The communication device 1300 is used to implement the functions of the UE, base station, SSCF, SDPF, UDM or AMF in the method embodiment shown in any of Figures 5 to 8 above.

[0201] When the communication device 1300 is used to implement the functions of the terminal in the method embodiment shown in Figure 5: the transceiver unit 1320 is used to receive the first indication information and the second indication information, and use the resources in the target resources to send a perception signal to the target area; the processing unit 1310 is used to perform processing-related functions.

[0202] When the communication device 1300 is used to implement the functions of the base station in the method embodiment shown in Figure 5: the transceiver unit 1320 is used to send the first indication information and the second indication information, and use the target resources to receive the perception signal from the target area; the processing unit 1310 is used to perform processing-related functions.

[0203] When the communication device 1300 is used to implement the functions of the terminal in the method embodiment shown in FIG6 , the transceiver unit 1320 is further used to send message 1 and receive message 2 ; and the processing unit 1310 is used to perform processing-related functions.

[0204] When the communication device 1300 is used to implement the function of the base station in the method embodiment shown in FIG6 , the transceiver unit 1320 is further used to receive message 1 and send message 2 ; and the processing unit 1310 is used to perform processing-related functions.

[0205] When the communication device 1300 is used to implement the function of the base station in the method embodiment shown in Figure 7: the transceiver unit 1320 is also used to receive the first request message and send a response message to the first request message; the processing unit 1310 is used to perform processing-related functions.

[0206] When the communication device 1300 is used to implement the AMF function in the method embodiment shown in Figure 7: the transceiver unit 1320 is further used to receive the first request message and send the first request message; the processing unit 1310 is used to perform processing-related functions.

[0207] When the communication device 1300 is used to implement the function of the SSCF in the method embodiment shown in Figure 7: the transceiver unit 1320 is also used to send the first request message and receive a response message to the first request message; the processing unit 1310 is used to perform processing-related functions.

[0208] When the communication device 1300 is used to implement the function of UE1 in the method embodiment shown in FIG8 : the transceiver unit 1320 is further used to send the third indication information and receive the grouping information of UE1; the processing unit 1310 is used to perform processing-related functions.

[0209] When the communication device 1300 is used to implement the AMF function in the method embodiment shown in Figure 8: the transceiver unit 1320 is also used to receive the third indication information, send the third indication information, send the fourth indication information, receive the group information of UE1, and send the group information of UE1; the processing unit 1310 is used to perform processing-related functions.

[0210] When the communication device 1300 is used to implement the function of the SSCF in the method embodiment shown in Figure 8: the transceiver unit 1320 is also used to send the second request information and receive a response message to the second request message; the processing unit 1310 is used to perform processing-related functions.

[0211] When the communication device 1300 is used to implement the UDM function in the method embodiment shown in Figure 8: the transceiver unit 1320 is further used to receive the second request information and send a response message to the second request information; the processing unit 1310 is used to perform processing-related functions.

[0212] For a more detailed description of the processing unit 1310 and the transceiver unit 1320 , reference may be made to the relevant descriptions in the method embodiments shown in FIG. 5 to FIG. 8 .

[0213] As shown in Figure 10, communication device 1400 includes a processor 1410 and an interface circuit 1420. Processor 1410 and interface circuit 1420 are coupled to each other. It is understood that interface circuit 1420 can be a transceiver or an input / output interface. Optionally, communication device 1400 may also include a memory 1430 for storing instructions executed by processor 1410, input data required by processor 1410 to execute instructions, or data generated after processor 1410 executes instructions.

[0214] When the communication device 1400 is used to implement the methods shown in FIG. 5 to FIG. 8 , the processor 1410 is used to implement the functions of the processing unit 1310 , and the interface circuit 1420 is used to implement the functions of the transceiver unit 1320 .

[0215] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. When the terminal chip receives information from the base station, it can be understood that the information is first received by other modules in the terminal (such as a radio frequency module or antenna) and then sent to the terminal chip by these modules. When the terminal chip sends information to the base station, it can be understood that the information is first sent to other modules in the terminal (such as a radio frequency module or antenna) and then sent to the base station by these modules.

[0216] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above-mentioned method embodiment. When the base station chip receives information from the terminal, it can be understood that the information is first received by other modules in the base station (such as a radio frequency module or antenna) and then sent to the base station chip by these modules. When the base station chip sends information to the terminal, it can be understood that the information is sent to other modules in the base station (such as a radio frequency module or antenna) and then sent to the terminal by these modules.

[0217] In this application, when entity A sends information to entity B, it can be done directly from A to B or indirectly through another entity. Similarly, when entity B receives information from entity A, it can be done directly from entity B or indirectly through another entity. Entities A and B herein can be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information can be information exchange between a RAN node and a terminal, for example, between a base station and a terminal; the sending and receiving of information can also be information exchange between two RAN nodes, for example, between a CU and a DU; the sending and receiving of information can also be information exchange between different modules within a device, for example, between a terminal chip and other modules in the terminal, or between a base station chip and other modules within the base station.

[0218] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0219] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and storage medium can also exist in a base station or a terminal as discrete components.

[0220] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

Claims

1. A communication method, characterized in that, Including: A first sensing entity receives first indication information and second indication information in a non-connected state, where the first indication information is used to instruct the sensing entity to send a sensing signal to a target area, and the second indication information is used to instruct the sensing entity to use target resources to send the sensing signal; The first sensing entity, in the non-connected state, according to the first indication information and the second indication information, uses a first resource in the target resources to send a sensing signal to the target area.

2. The method according to claim 1, wherein The first indication information includes target area information and one or more of the following: key performance indicator KPI of the sensing service, grouping information of the sensing entity, identity information of the sensing entity, identity information of the sensing service control function SSCF.

3. The method according to claim 1 or 2, characterized in that, The sensing signal carries the identity information of the first sensing entity, or includes the identity information of the first terminal and a timestamp.

4. The method according to any one of claims 1 to 3, characterized in that Before using the first resource in the target resources to send a sensing signal to the target area, the method further includes: The first sensing entity sends third indication information, where the third indication information indicates whether the first sensing entity agrees to provide the sensing service, or the third indication information indicates that the first sensing entity agrees to provide the sensing service, or the third indication information indicates that the first sensing entity does not agree to provide the sensing service; The first sensing entity receives the grouping information of the first terminal.

5. The method according to any one of claims 1 to 4, characterized in that, Using the first resource in the target resources to send a sensing signal to the target area includes: when the first indication information includes the grouping information or the identity information of the first sensing entity, using the first resource in the target resources to send a sensing signal to the target area.

6. The method according to any one of claims 1 to 5, characterized in that, The first indication information and / or the second indication information is sent through a first broadcast message.

7. A communication method, characterized in that, Including: Sending first indication information and second indication information, where the first indication information is used to instruct a sensing entity to send a sensing signal to a target area, and the second indication information is used to instruct the sensing entity to use target resources to send the sensing signal, and the sensing entity is in a non-connected state; Receiving a sensing signal from the target area using the target resources.

8. The method according to claim 7, characterized in that, The first indication information includes target area information and one or more of the following: key performance indicator KPI of the sensing service, grouping information of the sensing entity, identity information of the sensing entity, identity information of the sensing service control function SSCF.

9. The method according to claim 7 or 8, characterized in that, The sensing signal includes the identity information of the sensing entity, or includes the identity information of the sensing entity and a timestamp.

10. The method according to any one of claims 7 to 9, characterized in that The target resources include a first target resource and a second target resource, and the sensing entities include a first sensing entity and a second sensing entity. Receiving a sensing signal using the target resources includes: receiving the sensing signal sent by the first sensing entity from the first target resource, and receiving the sensing signal sent by the second sensing entity from the second target resource.

11. The method according to any one of claims 7 to 10, characterized in that Before sending the first indication information, the method further includes: Receive a first request message for requesting a sensing entity to send a sensing signal, where the first request message includes target area information and one or more of the following: a key performance indicator (KPI) of a sensing service, grouping information of the sensing entity, identity information of the sensing entity, identity information of a sensing service control function (SSCF), or a data service identification code (DSID).

12. The method according to claim 11, wherein After sending the first indication information, the method further includes: sending a response message for the first request message, where the response message is used to indicate that the first indication information has been sent.

13. The method according to any one of claims 7 to 12, characterized in that The first indication information and the second indication information are sent through a first broadcast message.

14. A communication method, characterized in that, Includes: Send a first request message for requesting a sensing entity to send a sensing signal; Receive a response message for indicating that the device that received the first request message has sent the first indication information, where the first indication information is used to indicate that the sensing entity sends a sensing signal to the target area.

15. The method according to claim 14, characterized in that, The first request message includes target area information and one or more of the following: a key performance indicator (KPI) of a sensing service, grouping information of the sensing entity, identity information of the sensing entity, identity information of a sensing service control function (SSCF), or a data service identification code (DSID).

16. The method according to claim 14 or 15, characterized in that Sending the first request message includes: sending the first request message to the AMF.

17. The method according to any one of claims 14 to 16, characterized in that Sending the first request message includes: sending the first request message to an access network device according to the grouping information of the sensing entity.

18. A communication method, characterized in that, Includes: Receive a first request message for a sensing entity to send a sensing signal; Send a second request message related to the first request message.

19. A communication method, characterized in that, Includes: Receive third indication information indicating whether the first sensing entity agrees to provide a sensing service, or the third indication information indicates that the first sensing entity agrees to provide a sensing service, or the third indication information indicates that the first sensing entity does not agree to provide a sensing service; Receive fourth indication information indicating the location of the first sensing entity; Send the grouping information of the first sensing entity, where the grouping information of the first sensing entity is determined according to the third indication information and the fourth indication information.

20. A communication method, characterized in that, Includes: A radio access network (RAN) device sends first indication information and second indication information, where the first indication information is used to indicate that a sensing entity sends a sensing signal to a target area, and the second indication information is used to indicate that the sensing entity uses target resources to send a sensing signal; The sensing entity receives the first indication information and the second indication information in a non-connected state; The sensing entity uses a first resource in the target resources to send a sensing signal to the target area according to the first indication information and the second indication information in a non-connected state; The RAN device uses the target resources to receive a sensing signal from the target area.

21. The method according to claim 20, wherein Before the RAN device sends the first indication information, it further includes: A sensing service control function (SSCF) sends a first request message for requesting a sensing entity to send a sensing signal; The RAN device receives the first request message.

22. The method according to claim 21, wherein Before the RAN device receives the first request message, the method further includes: The access and mobility management function AMF receives the first request message; The AMF sends the first request message.

23. The method according to any one of claims 20 to 22, characterized in that Before the RAN device sends the first indication information and the second indication information, the method further includes: The sensing entity sends third indication information, where the third indication information indicates whether the first sensing entity agrees to provide a sensing service, or the third indication information indicates that the first sensing entity agrees to provide a sensing service, or the third indication information indicates that the first sensing entity does not agree to provide a sensing service; The unified data management UDM receives the third indication information; The UDM receives fourth indication information, where the fourth indication information indicates the location of the first sensing entity; The UDM sends the packet information of the sensing entity, where the packet information of the sensing entity is determined according to the third indication information and the fourth indication information; The sensing entity receives the packet information of the sensing entity.

24. The method according to any one of claims 1 to 23, characterized in that, The sensing entity includes a terminal.

25. The method according to any one of claims 1 to 23, characterized in that, The sensing entity includes a non-connected terminal.

26. A system, characterized in that, Including: A first communication device and a second communication device, where the first communication device executes the method according to any one of claims 1 to 25 above.

27. A communication device, characterized in that, Including: Including a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the computer instructions execute the method according to any one of claims 1 to 25.

28. A computer-readable storage medium storing computer instructions, characterized in that, When the computer instructions run on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 25.

29. A computer program product, characterized in that, Including computer instructions, and when the computer instructions run on a computer, the computer is caused to execute the method according to any one of claims 1 to 25.

30. A communication device, characterized in that, Including a transceiver unit, where the transceiver unit is used to receive the first indication information and the second indication information, and send a sensing signal to a target area using a resource in the target resource, where the first indication information is used to instruct the sensing entity to send a sensing signal to the target area, and the second indication information is used to instruct the sensing entity to use the target resource to send the sensing signal; According to the first indication information and the second indication information, send a sensing signal to the target area using the first resource in the target resource.

31. The communication device according to claim 30, wherein The first indication information includes target area information and one or more of the following: key performance indicator KPI of the sensing service, packet information of the sensing entity, identity information of the sensing entity, identity information of the sensing service control function SSCF.

32. The communication device according to claim 30 or 31, characterized in that, The sensing signal carries the identity information of the first sensing entity, or includes the identity information of the first sensing entity and a timestamp.

33. The communication device according to any one of claims 30 to 32, characterized in that, Before sending a sensing signal to the target area using the first resource in the target resource, the transceiver unit is further used for: Send third indication information, where the third indication information indicates whether the first sensing entity agrees to provide sensing services, or the third indication information indicates that the first sensing entity agrees to provide sensing services, or the third indication information indicates that the first sensing entity does not agree to provide sensing services; Receive the packet information of the first communication device.

34. The communication device according to any one of claims 30 to 33, characterized in that, Using the first resource in the target resource to send a sensing signal to the target area includes: the first indication information includes the packet information or the identity information of the first sensing entity, and using the first resource in the target resource to send a sensing signal to the target area.

35. The communication device according to any one of claims 30 to 34, characterized in that The first indication information and the second indication information are sent through a first broadcast message.

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