Perception method and device thereof

Abstract

A wireless communication method for a first wireless network node is disclosed. The method includes receiving a perceived service request for a perceived task from a wireless terminal, and determining a perceived function (SF) based on the perceived service request.

Description

Technical Field

[0001] This document primarily focuses on wireless communication, especially 5G communication. Background Technology

[0002] In 5G networks, the AMF (Access and Mobility Management Function) is responsible for relaying sensing messages between the RAN (Radio Access Network) and SF (Sensing Function). However, sensing processes involving the AMF can be inefficient and may increase system complexity. Summary of the Invention

[0003] This disclosure relates to methods, systems, and devices for sensing, and in particular to sensing methods, systems, and devices that do not relate to AMF.

[0004] This disclosure relates to a wireless communication method for a first wireless network node. The method includes: Receive sensing service requests for sensing tasks from wireless terminals, and The sensing function (SF) is determined based on the sensing service request.

[0005] Various embodiments may preferably achieve the following features: Preferably, the sensing service request is a non-access stratum (NAS) message.

[0006] Preferably, the wireless communication method further includes: receiving a NAS security context from an access and mobility management function, the NAS security context being configured to process NAS messages between the wireless terminal and the first wireless network node.

[0007] Preferably, the sensing service request includes at least one of the following: a sensing task identifier, a target area, one or more quality of service (QoS) parameters, or a report type.

[0008] Preferably, the wireless communication method further includes a function of storing the sensing information of the sensing task into a data repository.

[0009] Preferably, the sensing information includes at least one of a sensing task identifier, an SF identifier, or one or more sensing requirements.

[0010] Preferably, the wireless communication method further includes: transmitting a sensing service request for the sensing task to the determined SF.

[0011] Preferably, determining the SF based on the perception service request includes: By using the sensing task identifier determined based on the sensing service request and the user's permanent identifier of the wireless terminal, sensing information of the sensing task is retrieved from the data repository function, and SF is determined based on the SF identifier in the perceived information.

[0012] Preferably, the wireless communication method further includes retrieving a NAS security context from a data repository function, the NAS security context being configured to process NAS messages from the wireless terminal.

[0013] Preferably, the wireless communication method further includes transmitting sensing information for the sensing task to the second wireless network node for switching.

[0014] Preferably, the sensing information includes at least one of a sensing task identifier, an SF identifier, or one or more sensing requirements.

[0015] Preferably, the sensing information of the sensing task is transmitted to the second wireless network node via the first access and mobility management function (AMF) of the first wireless network node and the second AMF of the second wireless network node.

[0016] This disclosure relates to a wireless communication method for a second wireless network node. The method includes: Receive sensing information for the sensing task used for handover from the first wireless network node.

[0017] Various embodiments may preferably achieve the following features: Preferably, the sensing information includes at least one of a sensing task identifier, a sensing function (SF) identifier, or one or more sensing requirements.

[0018] Preferably, the sensing information of the sensing task is received from the first wireless network node via the first access and mobility management function (AMF) of the first wireless network node and the second AMF of the second wireless network node.

[0019] Preferably, the wireless communication method further includes: transmitting a sensing update request to the SF determined based on sensing information, which instructs the second wireless network node to perform a sensing task.

[0020] This disclosure relates to a wireless communication method for a first access and mobility management function (AMF). The method includes: A non-access stratum (NAS) security context is transmitted to the first wireless network node. This NAS security context is configured to handle NAS messages between the wireless terminal and the first wireless network node.

[0021] Various embodiments may preferably achieve the following features: Preferably, the wireless communication method further includes: storing the NAS security context along with the user's permanent identifier of the wireless terminal into a data repository function.

[0022] Preferably, the wireless communication method further includes: Receive sensing information and target information for the sensing task from the first wireless network node, and The sensing information of the sensing task is transmitted to the second AMF determined based on the target information.

[0023] Preferably, the sensing information includes at least one of a sensing task identifier, a sensing function (SF) identifier, or one or more sensing requirements.

[0024] This disclosure relates to a wireless communication method for sensing (SF) functionality. The method includes: Receive the sensing service request for the sensing task from the first wireless network node.

[0025] Various embodiments may preferably achieve the following features: Preferably, the sensing service request includes at least one of the following: a sensing task identifier, a target area, one or more quality of service (QoS) parameters, or a report type.

[0026] Preferably, the wireless communication method further includes: receiving a sensing update request from a second wireless network node, which instructs the second wireless network node to perform a sensing task.

[0027] This disclosure relates to a wireless communication method for a wireless terminal. The method includes: A perception service request for a perception task is transmitted to the first wireless network node, wherein the perception service request includes a perception task identifier.

[0028] Various embodiments may preferably achieve the following features: Preferably, the perceived service request also includes at least one of a target area, one or more quality of service (QoS) parameters, or a report type.

[0029] This disclosure relates to a first wireless network node. The first wireless network node includes: The communication unit is configured to receive sensing service requests for sensing tasks from a wireless terminal, and The processor is configured to determine the perception function (SF) based on the perception service request.

[0030] Various embodiments may preferably achieve the following features: Preferably, the processor is also configured to execute any of the above-described wireless communication methods.

[0031] This disclosure relates to a second wireless network node. The second wireless network node includes: The communication unit is configured to receive sensing information for a sensing task to be switched from the first wireless network node.

[0032] Various embodiments may preferably achieve the following features: Preferably, the second wireless network node further includes a processor configured to perform any of the aforementioned wireless communication methods.

[0033] This disclosure relates to a third wireless network node. The third wireless network node includes: The communication unit is configured to transmit a non-access stratum (NAS) security context to a first wireless network node, the NAS security context being configured to process NAS messages between the wireless terminal and the first wireless network node.

[0034] Various embodiments may preferably achieve the following features: Preferably, the third wireless network node further includes a processor configured to perform any of the aforementioned wireless communication methods.

[0035] This disclosure relates to a fourth wireless network node. The fourth wireless network node includes: The communication unit is configured to receive a sensing service request for a sensing task from a first wireless network node.

[0036] Various embodiments may preferably achieve the following features: Preferably, the fourth wireless network node further includes a processor configured to perform any of the aforementioned wireless communication methods.

[0037] This disclosure relates to a wireless terminal. The wireless terminal includes: The communication unit is configured to transmit a sensing service request for a sensing task to a first wireless network node, wherein the sensing service request includes a sensing task identifier.

[0038] Various embodiments may preferably achieve the following features: Preferably, the line terminal includes a processor configured to perform any of the above-described wireless communication methods.

[0039] This disclosure relates to a computer program product including computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method according to any of the preceding claims.

[0040] The exemplary embodiments disclosed herein are intended to provide features that will become apparent from the following description and in conjunction with the accompanying drawings. Exemplary systems, methods, apparatuses, and computer program products are disclosed herein according to various embodiments. However, it should be understood that these embodiments are presented by way of example and not limitation, and that various modifications to the disclosed embodiments will be apparent to those skilled in the art who read this disclosure while remaining within the scope of this disclosure.

[0041] Therefore, this disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Furthermore, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes may be rearranged while remaining within the scope of this disclosure. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in an exemplary order, and unless otherwise expressly stated, this disclosure is not limited to the specific order or hierarchy presented.

[0042] This invention is specifically described by the independent claims. Preferred embodiments are defined in the dependent claims. In the following description, although many features may be specified as optional, it should be acknowledged that all features included in the independent claims should not be considered optional.

[0043] The above and other aspects and their implementations are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0044] Figure 1 A schematic diagram of a network according to an embodiment of the present disclosure is shown.

[0045] Figure 2 A schematic diagram of a sensing process according to an embodiment of the present disclosure is shown.

[0046] Figure 3 A schematic diagram of a network according to an embodiment of the present disclosure is shown.

[0047] Figure 4 A schematic diagram of a process according to an embodiment of the present disclosure is shown.

[0048] Figure 5 A schematic diagram of a service request process according to an embodiment of this disclosure is shown.

[0049] Figure 6 A schematic diagram of N2 switching according to an embodiment of the present disclosure is shown.

[0050] Figure 7 A schematic diagram of Xn switching according to an embodiment of the present disclosure is shown.

[0051] Figure 8 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0052] Figure 9 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0053] Figure 10 A flowchart of a method according to an embodiment of this disclosure is shown.

[0054] Figure 11 A flowchart of a method according to an embodiment of this disclosure is shown.

[0055] Figure 12 A flowchart of a method according to an embodiment of this disclosure is shown.

[0056] Figure 13 A flowchart of a method according to an embodiment of this disclosure is shown.

[0057] Figure 14 A flowchart of a method according to an embodiment of this disclosure is shown. Detailed Implementation

[0058] Figure 1 A schematic diagram of a network (architecture) according to an embodiment of this disclosure is shown. Figure 1 In this context, a network includes the following network functions / entities: 1) UE (User Equipment): The UE is configured to perform sensing measurements and send the measurement results to the SF to calculate the final sensing result.

[0059] 2) RAN (Radio Access Network): RAN can also be called AN (Access Network), NG-RAN (Next Generation RAN), RAN node, or NG-RAN node. (R)AN participates in the sensing process, including performing sensing measurements and transmitting sensing messages between AMF or SF and UE.

[0060] 3) AMF (Access and Mobility Management Function): AMF includes functions responsible for managing perceptions (services).

[0061] 4) SF (Sensory Function): SF is configured to manage the overall coordination and scheduling of resources required for sensing (services). SF can also be configured to compute the final sensing results.

[0062] 5) NEF (Network Exposure Function): The NEF is configured to provide a means for accessing sensing services via external or internal AFs.

[0063] 6) AF (Application Function): AF is configured as a request-aware service.

[0064] Figure 2 A schematic diagram of a sensing process according to an embodiment of the present disclosure is shown. Specifically, Figure 2 The sensing process shown is triggered by the UE and includes the following steps: Step 201: To understand its surrounding environment, the UE sends a sensing service request to the AMF via the RAN. This request includes the target area (e.g., tracking area ID (identifier), cell ID, RAN node ID), and may also include sensing QoS (parameters), reporting type, and other sensing requirements.

[0065] Step 202: The AMF selects the SF (Service Provider) to serve the UE based on the UE's location and the SF's service area. This selection can be achieved using an NRF query.

[0066] Step 203: The AMF sends a perception service request to the selected SF.

[0067] Step 204: SF collects sensing measurement data from RAN and / or UE.

[0068] Step 205: The SF calculates the final perception result based on the perception measurement data received from the RAN / UE, and sends the perception measurement result to the AMF using the perception service response.

[0069] Step 206: The AMF sends a sensing service response to the UE via the RAN to forward the sensing measurement result.

[0070] exist Figure 2 In the illustrated sensing process, the sensing service request and sensing service response are NAS messages transmitted via AMF. This disclosure also discloses a sensing process that handles sensing services without involving AMF.

[0071] Specifically, the RAN can communicate directly with the SF. For example, if the N2 interface between the RAN and the SF is a service-based interface, the RAN may be able to communicate directly with the SF. This N2 interface allows the RAN to discover the SF via the NRF (Network Repository Function) and communicate directly with the selected SF.

[0072] In embodiments where the RAN communicates directly with the SF, such as Figure 3 As shown, the Network Function (NF) DRF (Data Repository Function) is introduced. The DRF is configured to store NAS security context and awareness context / information. Specifically, the AMF stores the NAS security context in the DRF, and the RAN stores the awareness context in the DRM. The RAN can retrieve the NAS security context and awareness context / information from the DRF.

[0073] Figure 4 A schematic diagram of a process according to an embodiment of the present disclosure is shown. Figure 4 In this process, the UE registers with the network and requests sensing services. Specifically, Figure 4 The process shown includes the following steps: Step 401: The UE sends a NAS message registration request to the RAN. The NAS message registration request includes the registration type, GUTI (Globally Unique Temporary Identifier), security parameters, UE MM (Mobility Management) core network capabilities, and other parameters.

[0074] Step 402: The RAN selects an AMF and forwards the registration request message to the AMF.

[0075] Step 403: The AMF performs the UE authentication process. In this process, the UE is authenticated by the network, and the network is also authenticated by the UE.

[0076] Step 404: After successful UE authentication, the AMF sends a security mode command to the RAN node. This message includes the NAS security context to allow the RAN to protect NAS messages between the UE and the RAN.

[0077] Step 405: The RAN sends a secure mode command to the UE to begin security processing. The UE responds by sending a NAS message "Security mode complete" to the secure RAN. Security protection includes message integration and message encryption.

[0078] Step 406: The RAN decrypts the NAS security mode command completion message and forwards the decrypted message to the AMF.

[0079] Step 407: The AMF stores the NAS security context sent to the RAN in step 404, along with the SUPI (User Permanent Identifier), in the DRF.

[0080] Step 408: The AMF includes NAS message registration acceptance in the N2 message. The NAS message registration acceptance is sent to the UE and includes the registered area, new GUTI, and mobility restriction information. The N2 message is sent to the RAN and includes mobility restriction information. The RAN performs security processing on the NAS message and sends the NAS message registration acceptance to the UE via the Uu interface.

[0081] Step 409: The UE decrypts the NAS message, stores the new GUTI and mobility restriction information in the registration area, and sends a registration completion message to the AMF.

[0082] Step 410: To understand the surrounding / peripheral environment, the UE sends a NAS message "Sense Service Request" to the RAN. This request includes at least one of the following attributes: Sense Task ID (identifier), target area (e.g., tracking area ID and / or cell ID and / or RAN node ID), Sense QoS (parameters), reporting type, and other Sense requirements.

[0083] Step 411: The RAN selects an SF to provide service to the UE based on the UE's location and the SF's service area. This selection can be made using NRF queries or local configuration.

[0084] Step 412: The RAN stores sensing information in the DRF, which includes at least one of the following: SUPI received from the UE, sensing task ID, SF identifier of the sensing task, and sensing requirements.

[0085] Step 413: The RAN sends a sensing service request to the selected SF.

[0086] Step 414: SF collects sensing measurement data from RAN and / or UE.

[0087] Step 415: The SF calculates the final perception result based on the perception measurement data received from the RAN and / or UE, and sends the final perception result to the RAN using the perception service response.

[0088] Step 416: The RAN sends a NAS message "Sense Service Response" to the UE, forwarding the sense result to the UE.

[0089] Figure 5 A schematic diagram of a service request process according to an embodiment of this disclosure is shown. Figure 5 In this context, NAS security context and awareness information are stored in the DRF (e.g., see [link]). Figure 4 ).

[0090] Step 501: When / if the UE is in an idle state and has MO (Mobile Initiated) data or MO signaling or receives a paging request from the network, the UE first establishes an RRC (Radio Resource Control) connection and initiates a (sensing) service request to the RAN through the RRC connection. In this embodiment, the service request includes the sensing task ID to be activated.

[0091] Step 502: Based on the service request, the RAN retrieves the NAS security context and awareness information from the DRF. Specifically, it retrieves the NAS security context using SUPI and the awareness information using SUPI and the awareness task ID.

[0092] Step 503: Based on the SF identifier contained in the sensing information, the RAN sends a sensing update request to the SF to activate the sensing task in the SF.

[0093] Step 504: SF sends a sensing update response to RAN.

[0094] Figure 6 A schematic diagram of an N2 handover (process) according to an embodiment of the present disclosure is shown. In this embodiment, the SF is switched by the source RAN (i.e., Figure 6The S-RAN in the UE is selected in response to the sensing service request triggered by the UE.

[0095] Step 601: Based on the radio measurement results, the S-RAN directs the signal to the source AMF (i.e., Figure 6 The S-AMF (Sense Request for Information) sends a handover request message that includes target information and a RAN container. The RAN container includes at least one of the following: the Sense Task ID, the SF identifier of the Sense Task, or the Sense Request from the Sense Service Request received from the UE.

[0096] Step 602: The source AMF determines the target AMF based on the target information (i.e. Figure 6 The message includes the RAN container received from the source RAN (T-AMF) and sends a UE context relocation request to the target AMF.

[0097] Step 603: Target AMF selects target RAN (i.e. Figure 6 The message includes the RAN container received from the source AMF (T-RAN) and sends a handover request to the target RAN.

[0098] Step 604: The target RAN sends a handover confirmation to the target AMF.

[0099] Step 605: The target AMF sends a UE context relocation response to the source AMF.

[0100] Step 606: The source AMF sends a handover command to the source RAN.

[0101] Step 607: The source RAN sends a handover command to the UE.

[0102] Step 608: The UE accesses the target RAN and establishes a radio connection with the target RAN.

[0103] Step 609: The target RAN sends a perception update request message to the SF, indicating the RAN changes.

[0104] Step 610: SF sends a perception update response to the target RAN.

[0105] Figure 7 A schematic diagram of an Xn handover (process) according to an embodiment of the present disclosure is shown. In this embodiment, SF is switched by the source RAN (i.e. Figure 7 The S-RAN in the UE is selected in response to the sensing service request triggered by the UE.

[0106] Step 701: Based on the wireless measurement results, the source RAN sends a handover request message to the target RAN (i.e., Figure 7The UE initiates an Xn-based handover via T-RAN. This message includes at least one of the following: the sensing task ID, the sensing task's SF identifier, or a sensing requirement from a sensing service request received from the UE.

[0107] Step 702: The target RAN returns a handover request confirmation message to the source RAN. This message includes all radio resource information successfully reserved for the UE in the target RAN.

[0108] Step 703: The source RAN sends a handover command to the UE. This message includes the radio resources received from the target RAN.

[0109] Step 704: Based on the radio resources received from the source RAN, the UE accesses the target RAN and establishes a radio connection with the target RAN.

[0110] Step 705: The target RAN sends a perception update request message indicating RAN changes to the SF.

[0111] Step 706: SF sends a perception update response to the target RAN.

[0112] Figure 8 This is a schematic diagram relating to a wireless terminal 80 according to an embodiment of the present disclosure. The wireless terminal 80 may be a user equipment (UE), mobile phone, laptop computer, tablet computer, e-book reader, or portable computer system, and is not limited thereto. The wireless terminal 80 may include a processor 800 such as a microprocessor or application-specific integrated circuit (ASIC), a storage unit 810, and a communication unit 820. The storage unit 810 may be any data storage device storing program code 812 accessed and executed by the processor 800. Embodiments of the storage unit 810 include, but are not limited to, a user identification module (SIM), read-only memory (ROM), flash memory, random access memory (RAM), hard disk, and optical data storage devices. The communication unit 820 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) based on the processing results of the processor 800. In one embodiment, the communication unit 820 is connected via... Figure 8 At least one antenna 822 shown transmits and receives signals.

[0113] In one embodiment, the storage unit 810 and the program code 812 may be omitted, and the processor 800 may include a storage unit with stored program code.

[0114] The processor 800 can implement any of the steps in the exemplary embodiments on the wireless terminal 80, for example, by executing program code 812.

[0115] The communication unit 820 may be a transceiver. Alternatively or as a supplement, the communication unit 820 may be combined with a transmission unit and a receiving unit configured to transmit signals to and receive signals from a wireless network node (e.g., a base station), respectively.

[0116] Figure 9 This diagram relates to a wireless network node 90 according to an embodiment of the present disclosure. The wireless network node 90 may be a satellite, base station (BS), network entity, mobility management entity (MME), serving gateway (S-GW), packet data network (PDN) gateway (P-GW), radio access network (RAN) node, next-generation RAN (NG-RAN) node, gNB, eNB, gNB central unit (gNBCU), gNB distributed unit (gNB-DU), data network, core network, or radio network controller (RNC), and is not limited thereto. Furthermore, the wireless network node 90 may include (perform) at least one network function, such as access and mobility management function (AMF), session management function (SMF), user location function (UPF), policy control function (PCF), application function (AF), etc. The wireless network node 90 may include a processor 900 such as a microprocessor or ASIC, a storage unit 910, and a communication unit 920. The storage unit 910 may be any data storage device storing program code 912 accessed and executed by the processor 900. Examples of the storage unit 910 include, but are not limited to, SIM, ROM, flash memory, RAM, hard disk, and optical data storage devices. The communication unit 920 can be a transceiver and is used to transmit and receive signals (e.g., messages or packets) based on the processing results of the processor 900. In one example, the communication unit 920 is connected via... Figure 9 At least one antenna 922 shown transmits and receives signals.

[0117] In one embodiment, the storage unit 910 and the program code 912 may be omitted. The processor 900 may include a storage unit containing stored program code.

[0118] The processor 900 can implement any of the steps described in the exemplary embodiments on the wireless network node 90, for example, via executing program code 912.

[0119] The communication unit 920 may be a transceiver. Alternatively or as a supplement, the communication unit 920 may be combined with a transmission unit and a receiving unit configured to transmit signals to and receive signals from a wireless terminal (e.g., a user equipment or another wireless network node).

[0120] Figure 10 A flowchart of a method according to an embodiment of this disclosure is shown. Figure 10The method shown can be used for the first wireless network node (e.g., BS, RAN, RAN node, ...). Figure 6 or Figure 7 (Source RAN in the image), and includes the following steps: Step 1001: Receive a sensing service request for the sensing task from the wireless terminal.

[0121] Step 1002: Determine SF based on the perception service request.

[0122] exist Figure 10 In this embodiment, the first wireless network node receives a sensing service request for a sensing task from a wireless terminal (e.g., a UE). Specifically, the first wireless network node is configured to process the sensing service request itself. Specifically, the first wireless network node determines a SF (Sensitive Provider) based on the sensing service request to provide sensing services to the wireless terminal. In one embodiment, the first wireless network node transmits the sensing service request for the sensing task to the determined SF.

[0123] In one embodiment, the awareness service request is a NAS message. In this embodiment, the first wireless network node has a NAS security context for processing (e.g., decrypting / protecting) NAS messages. Therefore, the first wireless network node is capable of processing the awareness service request.

[0124] In one embodiment, a NAS security context is received from the AMF.

[0125] In one embodiment, the NAS security context is received / retried from the DRF.

[0126] In one embodiment, a sense service request includes at least one of a sense task identifier, a target area, one or more QoS parameters, or a report type. For example, a sense service request may include at least a sense task identifier.

[0127] In one embodiment, the first wireless network node stores / transmits sensing information for a sensing task to the DRF. For example, the sensing information includes a sensing task identifier, an SF identifier, or at least one of one or more sensing requirements.

[0128] In one embodiment, the first wireless network node receives / retryes sensing information for a sensing task from the DRF using a sensing task identifier determined based on the sensing service request and the SUPI of the wireless terminal. The first wireless network node determines the SF based on the retrieved / received sensing information (e.g., the SF identifier in the sensing information).

[0129] In one embodiment, the first wireless network node transmits sensing information for the sensing task used for handover to the second wireless network node (e.g., see...). Figure 6 or Figure 7The sensing information includes at least one of the sensing task identifier, SF identifier, or one or more sensing requirements.

[0130] In one embodiment, the sensing information for the sensing task is transmitted via the first AMF (e.g., from the first wireless network node). Figure 6 The source AMF in the second wireless network node (e.g., the source AMF in the second wireless network node) and the second AMF in the second wireless network node (e.g., the source AMF in the second wireless network node) Figure 6 The target AMF in the middle is transmitted to the second wireless network node.

[0131] Figure 11 A flowchart of a method according to an embodiment of this disclosure is shown. Figure 11 The method shown can be used for a second wireless network node (e.g., Figure 6 and Figure 7 (BS, RAN, RAN node or target RAN in the context of RAN), and includes the following steps: Step 1101: Receive sensing information for the sensing task used for handover from the first wireless network node.

[0132] In this embodiment, the second wireless network node receives data from the first wireless network node (e.g., Figure 6 and Figure 7 The source RAN in the system receives sensing information for the sensing task to be switched. In one embodiment, the sensing information includes a sensing task identifier, an SF identifier, or at least one of one or more sensing requirements.

[0133] In one embodiment, the sensing information of the sensing task is received from the first wireless network node via the first access and mobility management function (AMF) of the first wireless network node and the second AMF of the second wireless network node.

[0134] In one embodiment, the second wireless network node determines the SF based on the sensing information and transmits a sensing update request to the determined SF to update the sensing information of the sensing task (e.g., to notify the SF that the sensing task has been transmitted to the second wireless network node).

[0135] Figure 12 A flowchart of a method according to an embodiment of this disclosure is shown. Figure 12 The method shown can be used for a first AMF (e.g., a wireless network node, a wireless network node including an AMF, or a wireless network node performing at least some of the functions of an AMF), and includes the following steps: Step 1201: Transmit the NAS security context associated with the wireless terminal to the first wireless network node.

[0136] exist Figure 12In order to allow the first wireless network node to process NAS messages from a wireless terminal (e.g., a UE), the first AMF transmits the NAS security context associated with the wireless terminal to the first wireless network node. For example, the NAS security context is used / configured to process / protect / encrypt / decrypt NAS messages from the wireless terminal.

[0137] In one embodiment, the first AMF stores the NAS security context associated with the wireless terminal to the DRF. The NAS security context may be stored together with the wireless terminal's SUPI.

[0138] In one embodiment, a first AMF receives sensing information for a sensing task and target information for switching. The first AMF then transmits the sensing information to a second AMF determined based on the target information.

[0139] In one embodiment, the sensing information includes at least one of a sensing task identifier, an SF identifier, or one or more sensing requirements.

[0140] Figure 13 A flowchart of a method according to an embodiment of this disclosure is shown. Figure 13 The method shown can be used in a wireless network node (e.g., a wireless network node, a wireless network node including an SF, or a wireless network node performing at least some of the functions of an SF), and includes the following steps: Step 1301: Receive a sensing service request for the sensing task from the first wireless network node.

[0141] In this embodiment, the SF can receive the sensing service request for the sensing task from the first wireless network node (e.g., BS, RAN, RAN node) instead of from the AMF.

[0142] In one embodiment, a sense service request includes at least one of a sense task identifier, a target area, one or more QoS parameters, or a report type.

[0143] In one embodiment, the SF can receive a sensing update request from the second wireless network node to update the information of the sensing task (e.g., to indicate that the sensing task is transferred / switched to the second wireless network node).

[0144] Figure 14 A flowchart of a method according to an embodiment of this disclosure is shown. Figure 14 The method shown can be used in wireless terminals (e.g., UEs) and includes the following steps: Step 1401: Transmit a sensing service request for the sensing task to the first wireless network node, wherein the sensing service request includes a sensing task identifier.

[0145] exist Figure 14In this process, the wireless terminal transmits a sensing service request for a sensing task to the first wireless network node. Note that the sensing service request includes at least a sensing task identifier to identify the requested sensing task. For example, the sensing service request includes a sensing acquisition identifier and may also include at least one of a target area, one or more Quality of Service (QoS) parameters, or a reporting type.

[0146] While various embodiments of this disclosure have been described above, it should be understood that they are by way of example only and not as limiting. Similarly, various accompanying drawings may depict exemplary architectures or configurations provided to enable those skilled in the art to understand the exemplary features and functionality of this disclosure. However, those skilled in the art will understand that this disclosure is not limited to the exemplary architectures or configurations shown, but can be implemented using various alternative architectures and configurations. Furthermore, as those skilled in the art will understand, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited to any of the exemplary embodiments described above.

[0147] It should also be understood that any reference to elements using names such as "first," "second," etc., in this document generally does not restrict the number or order of these elements. Rather, these names can be used as a convenient means of distinguishing two or more elements or instances of elements in this document. Therefore, mentioning the first and second elements does not imply that only two elements can be used, nor does it imply that the first element must precede the second element in some way.

[0148] Furthermore, those skilled in the art will understand that information and signals can be represented using any of a variety of different techniques and skills. For example, data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0149] Those skilled in the art will further understand that any of the various illustrative logic blocks, units, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of program or design code containing instructions (which may be referred to herein as "software" or "software unit" for convenience), or any combination of these technologies.

[0150] To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, units, circuits, and steps have been generally described above according to their functions. Whether this function is implemented as hardware, firmware, or software, or a combination of these technologies, depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions will not depart from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc., can be configured to perform one or more functions described herein. The term "configured as" or "configured for" as used herein with respect to a specified operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc., physically constructed, programmed, and / or arranged to perform the specified operation or function.

[0151] Furthermore, those skilled in the art will understand that the various exemplary logic blocks, cells, devices, components, and circuits described herein can be implemented within or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, or any combination thereof. Logic blocks, cells, and circuits may also include antennas and / or transceivers for communicating with various components within a network or device. A general-purpose processor may be a microprocessor, but may also be any conventional processor, controller, or state machine. A processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration performing the functions described herein. If implemented in software, these functions may be stored as one or more instructions or code on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium.

[0152] Computer-readable media include computer storage media and communication media, including any medium capable of transferring computer programs or code from one place to another. Storage media can be any available medium that is accessible to a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and is accessible to a computer.

[0153] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. Furthermore, for the purposes of discussion, various units are described as discrete units; however, as will be apparent to those skilled in the art, two or more units may be combined to form a single unit performing the relevant functions according to embodiments of this disclosure.

[0154] Furthermore, memory or other memory and communication components may be employed in the embodiments of this disclosure. It should be understood that, for clarity, the foregoing description has referenced various functional units and processors in describing embodiments of this disclosure. However, it will be apparent that any suitable functional distribution among different functional units, processing logic elements, or domains may be used without diminishing the scope of this disclosure. For example, functions shown to be performed by separate processing logic elements or controllers may be performed by the same processing logic unit or controller. Therefore, references to specific functional units are merely references to suitable means of providing said functionality and not indications of a strict logical or physical structure or organization.

[0155] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the claims. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but should be given the widest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method for a first wireless network node, the method comprising: Receive sensing service requests for sensing tasks from wireless terminals, and The sensing function (SF) is determined based on the sensing service request.

2. The wireless communication method according to claim 1, wherein, The perception service request is a non-access stratum (NAS) message. The method further includes: NAS security context is received from the access and mobility management function, the NAS security context being configured to process NAS messages between the wireless terminal and the first wireless network node.

3. The wireless communication method according to claim 1 or 2, wherein, The perception service request includes at least one of the following: perception task identifier, target area, one or more quality of service (QoS) parameters, or report type.

4. The wireless communication method according to any one of claims 1 to 3, further comprising: The function of storing the perception information of the perception task into a data repository.

5. The wireless communication method according to claim 4, wherein, The sensing information includes at least one of a sensing task identifier, an SF identifier, or one or more sensing requirements.

6. The wireless communication method according to any one of claims 1 to 5, further comprising: The sensing service request for the sensing task is transmitted to the identified SF.

7. The wireless communication method according to any one of claims 1 to 6, wherein, The SF is determined based on the perception service request, including: By using the sensing task identifier determined based on the sensing service request and the user permanent identifier of the wireless terminal, the sensing information of the sensing task is retrieved from the data repository function, and The SF is determined based on the SF identifier in the perceived information.

8. The wireless communication method according to any one of claims 1 to 7, further comprising: The NAS security context is retrieved from the data repository function, and the NAS security context is configured to process NAS messages from the wireless terminal.

9. The wireless communication method according to any one of claims 1 to 8, further comprising: Transmit sensing information for the sensing task used for handover to the second wireless network node.

10. The wireless communication method according to claim 9, wherein, The sensing information includes at least one of a sensing task identifier, an SF identifier, or one or more sensing requirements.

11. The wireless communication method according to claim 9 or 10, wherein, The sensing information of the sensing task is transmitted to the second wireless network node via the first access and mobility management function (AMF) of the first wireless network node and the second AMF of the second wireless network node.

12. A wireless communication method for a second wireless network node, the method comprising: Receive sensing information for the sensing task used for handover from the first wireless network node.

13. The wireless communication method according to claim 12, wherein, The perception information includes at least one of a perception task identifier, a perception function (SF) identifier, or one or more perception requirements.

14. The wireless communication method according to claim 12 or 13, wherein, The sensing information for the sensing task is received from the first wireless network node via the first access and mobility management function (AMF) of the first wireless network node and the second AMF of the second wireless network node.

15. The wireless communication method according to any one of claims 12 to 14, further comprising: A perception update request is transmitted to the SF determined based on the perception information, which instructs the second wireless network node to perform the perception task.

16. A wireless communication method for a first access and mobility management function (AMF), the method comprising: A non-access stratum (NAS) security context is transmitted to a first wireless network node, the NAS security context being configured to process NAS messages between the wireless terminal and the first wireless network node.

17. The wireless communication method according to claim 16, further comprising: The function stores the NAS security context along with the user's permanent identifier for the wireless terminal in a data repository.

18. The wireless communication method according to claim 16 or 17, further comprising: Receive sensing information and target information of the sensing task from the first wireless network node, and The perception information of the perception task is transmitted to the second AMF determined based on the target information.

19. The wireless communication method according to claim 18, wherein, The perception information includes at least one of a perception task identifier, a perception function (SF) identifier, or one or more perception requirements.

20. A wireless communication method for sensing (SF) functions, the method comprising: Receive the sensing service request for the sensing task from the first wireless network node.

21. The wireless communication method according to claim 20, wherein, The perception service request includes at least one of the following: perception task identifier, target area, one or more quality of service (QoS) parameters, or report type.

22. The wireless communication method according to claim 20 or 21, further comprising: A perception update request is received from the second wireless network node, which instructs the second wireless network node to perform the perception task.

23. A wireless communication method for a wireless terminal, the method comprising: The sensing service request for the sensing task is transmitted to the first wireless network node. The perception service request includes a perception task identifier.

24. The wireless communication method according to claim 23, wherein, The awareness service request also includes at least one of the following: target area, one or more quality of service (QoS) parameters, or report type.

25. A first wireless network node, comprising: The communication unit is configured to receive sensing service requests for sensing tasks from a wireless terminal, and The processor is configured to determine the sensing function (SF) based on the sensing service request.

26. The first wireless network node according to claim 25, wherein, The processor is also configured to perform the wireless communication method according to any one of claims 2 to 11.

27. A second wireless network node, comprising: The communication unit is configured to receive sensing information for a sensing task to be switched from the first wireless network node.

28. The second wireless network node of claim 27, further comprising a processor configured to perform the wireless communication method of any one of claims 13 to 15.

29. A third wireless network node, comprising: The communication unit is configured to transmit a non-access stratum (NAS) security context to a first wireless network node, the NAS security context being configured to process NAS messages between the wireless terminal and the first wireless network node.

30. The third wireless network node of claim 29, further comprising a processor configured to perform the wireless communication method of any one of claims 17 to 19.

31. A fourth wireless network node, comprising: The communication unit is configured to receive a sensing service request for a sensing task from a first wireless network node.

32. The fourth wireless network node of claim 31, further comprising a processor configured to perform the wireless communication method of claim 21 or 22.

33. A wireless terminal, comprising: The communication unit is configured to transmit a sensing service request for a sensing task to the first wireless network node. The perception service request includes a perception task identifier.

34. The wireless terminal according to claim 33, wherein, The awareness service request also includes at least one of the following: target area, one or more quality of service (QoS) parameters, or report type.

35. A computer program product comprising computer-readable program medium code stored thereon, the code causing the processor to implement the wireless communication method according to any one of claims 1 to 24 when executed by a processor.

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