Method, apparatus and communication device for changing a perception function network element, and storage medium
By changing the sensing function network element to the second SF network element in 5G-A and future 6G networks through the AMF network element, the problem of unstable sensing service caused by UE mobility is solved, and resource optimization and service continuity are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA TELECOM CORP LTD TECHNOLOGY INNOVATION CENTER
- Filing Date
- 2023-09-01
- Publication Date
- 2026-05-19
AI Technical Summary
In 5G-A and future 6G networks, when the sensed target or the UE performing sensed measurements moves, the original sensed function network element may not be suitable to continue performing sensed services, resulting in wasted resources and network instability.
The AMF network element determines the first SF network element to change the current service to the second SF network element, and sends a perception service request to the second SF network element to realize the change of the perception function network element. This includes the AMF network element querying the perception capability information of multiple SF network elements stored in the NRF network element to select the appropriate second SF network element, and passing context information to support the perception service process of the target UE.
It enables the effective modification of sensing function network elements during UE movement, reduces resource consumption, and ensures the continuity and efficiency of sensing services.
Smart Images
Figure CN119562289B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to a method, apparatus, communication device, and storage medium for changing sensing function network elements. Background Technology
[0002] Enabling awareness services using communication infrastructure is one of the key technologies for the evolution of 5G-A and future 6G networks, and also one of the most important topics in 3GPP R19.
[0003] Currently, 3GPP Release 19 is about to begin discussions on the sensing network architecture. To provide sensing services within the network, it is necessary to introduce Sensing Function (SF) network elements and sensing service processes responsible for sensing function management, sensing data computation, and the sharing of sensing results. However, when the sensed target moves or the UE (User Equipment) performing sensing measurements moves, the original SF network element may no longer be suitable for continuing to perform sensing services. Therefore, how to implement sensing function network element changes has become an urgent problem to be solved. Summary of the Invention
[0004] This application provides a method, apparatus, communication device, and storage medium for changing sensing function network elements, which can realize the change of sensing function network elements.
[0005] In a first aspect, this application provides a method for changing a sensing function network element, applied to the AMF network element corresponding to a target UE during mobility. The method includes: after determining that the first SF network element currently serving the target UE is to be changed, the AMF network element changes the first SF network element to a second SF network element, and the second SF network element becomes the new serving SF network element; after determining that the first SF network element is changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element.
[0006] In one embodiment, the AMF network element changes the first SF network element to the second SF network element, including: the AMF network element sending a first change request to the first SF network element, so that the first SF network element sends context information related to the target UE and the perception service to the second SF network element based on the first change request, so that the second SF network element executes the perception service process for the target UE according to the context information.
[0007] In one embodiment, the AMF network element sends a first change request to the first SF network element, including: after the AMF network element receives a second change request sent by the target UE through a NAS transmission message, it sends the first change request to the first SF network element.
[0008] In one embodiment, the AMF network element sends a first change request to the first SF network element, including: the AMF network element determining the second SF network element; and the AMF network element sending a first change request carrying the address of the second SF network element to the first SF network element.
[0009] In one embodiment, the AMF determines the second SF network element by: the AMF network element querying the sensing capability information of multiple SF network elements stored in the NRF network element; and the AMF network element determining the second SF network element based on the query results.
[0010] In one embodiment, the method further includes: after the AMF network element receives the change response message sent by the second SF network element, the AMF network element sends the change response message to the target UE through NAS transmission message. The change response message is used to notify the AMF network element and the target UE that the first SF network element currently served has been changed to the second SF network element.
[0011] In one embodiment, the AMF network element sends a perception service request to the second SF network element, including: the AMF network element sends a perception service request to the second SF network element so that the second SF network element executes a perception service procedure for the target UE based on the perception service request and context information.
[0012] Secondly, this application provides a method for changing a sensing function network element, applied to a first SF network element currently providing services. The method includes: the first SF network element receiving a first change request sent by the AMF network element corresponding to the target UE during mobility; the first SF network element sending context information related to the target UE and sensing services to a second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information, wherein the second SF network element is a new serving SF network element.
[0013] In one embodiment, the first change request carries the address of the second SF network element, and the first SF network element sends context information related to the target UE and the sensing service to the second SF network element based on the first change request, including: the first SF network element sending context information to the second SF network element according to the address of the second SF network element.
[0014] In one embodiment, the first SF network element sends context information related to the target UE and sensing services to the second SF network element based on the first change request, including: the first SF network element determining the second SF network element; and the first SF network element sending context information to the second SF network element.
[0015] In one embodiment, the first SF network element determines the second SF network element by: the first SF network element querying the sensing capability information of multiple SF network elements stored in the NRF network element; and the first SF network element determining the second SF network element based on the query result.
[0016] In one embodiment, the method further includes: after receiving a successful reception message sent by the second SF network element, the first SF network element releases the signaling connection established with other network elements when executing the perception service process of the target UE in the first SF network element; wherein the successful reception message is used to indicate that the second SF network element has successfully received the context information.
[0017] Thirdly, this application provides a sensing function network element change device, applied to the AMF network element corresponding to the target UE during movement. The device includes: a change module, used to determine that after changing the currently serving first sensing function SF network element, the AMF network element changes the first SF network element to a second SF network element, and the second SF network element becomes the new serving SF network element; and a first sending module, used to determine that after the first SF network element is changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element.
[0018] In one embodiment, the change module includes a first sending unit for sending a first change request to a first SF network element, so that the first SF network element sends context information related to the target UE and the perception service to a second SF network element based on the first change request, so that the second SF network element executes the perception service process for the target UE according to the context information.
[0019] In one embodiment, the first sending unit is specifically used to send a first change request to the first SF network element after the AMF network element receives the second change request sent by the target UE through the NAS transmission message.
[0020] In one embodiment, the first sending unit is specifically used to determine the second SF network element and send a first change request carrying the address of the second SF network element to the first SF network element.
[0021] In one embodiment, the first transmitting unit is specifically used to query the sensing capability information of multiple SF network elements stored in the NRF network element; and to determine the second SF network element based on the query result.
[0022] In one embodiment, the change module includes a second sending unit, which, after receiving a change response message sent by the second SF network element, sends a change response message to the target UE via NAS transmission message. The change response message is used to notify the AMF network element and the target UE that the first SF network element currently served has been changed to the second SF network element.
[0023] In one embodiment, the first sending module is specifically used to send a sensing service request to the second SF network element, so that the second SF network element executes a sensing service process for the target UE based on the sensing service request and context information.
[0024] Fourthly, this application provides a sensing function network element change device, applied to a first SF network element currently providing services. The device includes: a receiving module, used by the first SF network element to receive a first change request sent by the AMF network element corresponding to the target UE during movement; and a second sending module, used by the first SF network element to send context information related to the sensing service of the target UE to a second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information, wherein the second SF network element is a new serving SF network element.
[0025] In one embodiment, the first change request carries the address of the second SF network element, and the second sending module is specifically used to send context information to the second SF network element according to the address of the second SF network element.
[0026] In one embodiment, the second sending module is specifically used to determine the second SF network element and send context information to the second SF network element.
[0027] In one embodiment, the second sending module is specifically used to query the sensing capability information of multiple SF network elements stored in the NRF network element; and to determine the second SF network element based on the query result.
[0028] In one embodiment, the apparatus further includes a release module, configured to release the signaling connection established between the first SF network element and other network elements when executing the perception service process of the target UE, after receiving a successful reception message sent by the second SF network element; wherein the successful reception message is used to indicate that the second SF network element has successfully received the context information.
[0029] Fifthly, this application provides a communication device, including a memory, a processor, and a transceiver. The memory stores a computer program, and when the processor executes the computer program, it controls the transceiver to implement the steps of the sensing function network element modification method described in any of the first aspects.
[0030] In a sixth aspect, this application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the sensing function network element modification method described in any of the first aspects above.
[0031] Seventhly, this application also provides a chip. The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, implement the steps of the sensing function network element modification method described in any of the first aspects above.
[0032] Eighthly, this application also provides a computer program product, including a computer program, characterized in that, when the computer program is executed by a processor, it implements the steps of the sensing function network element modification method described in any of the first aspects above.
[0033] The aforementioned method, apparatus, communication equipment, and storage medium for changing the sensing function network element are applied to the AMF network element corresponding to the target UE during its movement. After determining the first SF network element currently serving the change, the AMF network element changes the first SF network element to the new second SF network element. After determining that the first SF network element has been changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element, thereby realizing the change of the sensing function network element. Attached Figure Description
[0034] Figure 1 This is an application environment diagram of a method for changing a sensing function network element in one embodiment.
[0035] Figure 2 This is one example of a perception service application scenario.
[0036] Figure 3 This is a flowchart illustrating a method for changing a sensing function network element in one embodiment;
[0037] Figure 4 This is a flowchart illustrating another method for changing a sensing function network element in one embodiment;
[0038] Figure 5 This is a structural diagram of a perception network architecture in one embodiment;
[0039] Figure 6 This is a signaling interaction flowchart of a perception service process in one embodiment;
[0040] Figure 7 This is a signaling interaction flowchart for a change of a sensing function network element in one embodiment.
[0041] Figure 8 This is a structural block diagram of a sensing function network element modification device in one embodiment;
[0042] Figure 9 This is a structural block diagram of another sensing function network element modification device in one embodiment;
[0043] Figure 10 This is a schematic diagram of the structure of a communication device in one embodiment;
[0044] Figure 11 This is a schematic diagram of the structure of a chip in one embodiment. Detailed Implementation
[0045] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0046] Figure 1 This is a schematic diagram illustrating an application scenario for changing a sensing function network element, as provided in an embodiment of this application. For example... Figure 1 As shown, this scenario includes all network elements in the UE, RAN (Radio Access Network), AMF (Access and Mobility Management Function), SF, UPF (User Plane Function), NEF (Network Exposure Function), AF (Application Function), UDM (Unified Data Management), and NRF (Network Repository Function), and may also include only a subset of network elements. These multiple network elements can be connected to a service bus to communicate with each other. The service bus can also be understood as a message bus; a network element can invoke services provided by other network elements by sending a message to a target network element on the service bus. The aforementioned network elements are core network elements in a wireless communication network. The wireless communication network can be a Global System for Mobile communication (GSM) network, a Code Division Multiple Access (CDMA) network, a Wideband Code Division Multiple Access (WCDMA) network, a Long Term Evolution (LTE) network, or a 5G network; there are no limitations on this.
[0047] Enabling sensing services using communication infrastructure is a key technology for the evolution of 5G-A (5G-Advanced) and future 6G networks, and also one of the most important topics in 3GPP Release 19. The application areas of sensing services are very broad, such as... Figure 2 As shown, a perception service application scenario is provided, including multiple different scenarios such as indoor perception (such as smart conferencing and posture recognition) and outdoor perception (such as track safety monitoring and vehicle networking).
[0048] The following were defined in the study of sensed service scenarios and requirements conducted in 3GPP R19:
[0049] 1) 3GPP sensing data: In order to achieve sensing, target or environmental data of interest obtained through 3GPP radio signals (such as reflected signals, refracted signals and diffracted signals) can be selectively processed in 5GS (English: 5G System).
[0050] 2) Sensing results: Processed 3GPP sensing data based on the service consumer's request.
[0051] 3) Non-3GPP sensing data: Data on targets or environments of interest provided by non-3GPP sensors, such as video, radar and sonar data, for the purpose of sensing.
[0052] To support sensing services, 5G-A networks need to introduce SF network elements responsible for sensing function management, sensing data computation, and the sharing of sensing results. Therefore, the first step is to determine a general sensing service network architecture and basic sensing service processes.
[0053] Secondly, during periodic or triggered sensing events, the movement of the sensed target or the movement of the UE performing sensing measurements may lead to changes in the serving AMF network element. In this case, the original SF network element may no longer be suitable for performing sensing services. For example, if the original SF network element is very far from the changed serving AMF network element, it will cause excessive resource consumption during signaling transmission from the AMF network element to the SF network element. Therefore, how to implement the change of sensing function network elements when the sensed target or the UE performing sensing measurements moves has become an urgent problem to be solved.
[0054] Therefore, it is necessary to propose effective technical means to solve the above problems. The technical solution of this application and how it solves the above technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.
[0055] In one embodiment, such as Figure 3 As shown, a method for changing sensing function network elements is provided, which can be applied to... Figure 1 Taking the AMF network element corresponding to the target UE during its movement as an example, the following steps may be included:
[0056] Step 101: After determining the first SF network element for the current service change, the AMF network element changes the first SF network element to the second SF network element, and the second SF network element becomes the new service SF network element.
[0057] Optionally, based on the operator's configuration and policies, the AMF network element can assess and determine whether the first SF network element of the current service is suitable or can continue to support the current service. If it is not suitable or cannot continue, then the first SF network element of the current service will be changed. For example, the AMF network element determines whether the distance between the AMF network element and the first SF network element exceeds a distance threshold. If it does, then the first SF network element of the current service will be changed; if it does not exceed the threshold, then the first SF network element of the current service will not be updated.
[0058] The AMF network element changes the first SF network element to the second SF network element, including: the AMF network element sends a first change request to the first SF network element, so that the first SF network element sends context information related to the target UE and the perception service to the second SF network element based on the first change request, so that the second SF network element executes the perception service process for the target UE according to the context information.
[0059] Step 102: After determining that the first SF network element has been changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element.
[0060] Optionally, after receiving the change response message sent by the second SF network element, the AMF network element can determine that the first SF network element has been changed to the second SF network element. The change response message is sent by the second SF network element after successfully receiving the context information related to the target UE and the sensing service sent by the first SF network element, in order to notify the AMF network element that the first SF network element currently being served has been changed to the second SF network element.
[0061] The AMF network element sending a perception service request to the second SF network element may include: the AMF network element sending a perception service request to the second SF network element so that the second SF network element executes the perception service procedure for the target UE based on the perception service request and context information.
[0062] In another optional embodiment, the AMF network element sending a sensing service request to the second SF network element may further include: after receiving a first sensing service request sent by the target UE or the NEF network element, the AMF network element sends a second sensing service request to the second SF network element, so that the second SF network element executes the sensing service process for the target UE according to the second sensing service request and context information.
[0063] In the above-mentioned method for changing the sensing function network element, it is applied to the AMF network element corresponding to the target UE during the movement process. After determining the first SF network element for changing the current service, the AMF network element changes the first SF network element to the new second SF network element. After determining that the first SF network element has been changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element, thereby realizing the change of the sensing function network element.
[0064] In one embodiment, the AMF network element sending a first change request to the first SF network element may include: after the AMF network element receives a second change request sent by the target UE through a NAS transmission message, it sends the first change request to the first SF network element.
[0065] NAS stands for Non-Access Stratum.
[0066] The second change request includes the movement event of the sensed target or the movement event of the UE performing the sensing measurement. The first change request and the second change request may be the same or different; they are both used to request changes to SF network elements, and their specific forms are not limited here.
[0067] Optionally, after receiving the second change request sent by the target UE via NAS transmission message, the AMF network element determines the second SF network element; the AMF network element then sends a first change request carrying the address of the second SF network element to the first SF network element.
[0068] In another optional embodiment, after receiving the second change request sent by the target UE via NAS transmission message, the AMF network element generates a first change request for requesting the first SF network element to change the SF network element currently serving it, and the AMF network element sends the first change request to the first SF network element without carrying the address of the second SF network element.
[0069] In one embodiment, the AMF determines the second SF network element, which may include: the AMF network element querying the sensing capability information of multiple SF network elements stored in the NRF network element; and the AMF network element determining the second SF network element based on the query result.
[0070] Optionally, each SF network element can register its own sensing capability information with the NRF network element. Therefore, when the AMF needs to select an SF network element, it can obtain the required SF network element by querying the NRF network element. Thus, in determining the second SF network element, the AMF can query the sensing capability information of multiple SF network elements in the NRF network element. Based on the sensing target area information or target location information in the second change request and the sensing capability information of each SF network element, the AMF network element selects the target SF network element from the multiple SF network elements and uses this target SF network element as the second SF network element.
[0071] In one embodiment, the method may further include: after the AMF network element receives the change response message sent by the second SF network element, the AMF network element sends the change response message to the target UE through NAS transmission message. The change response message is used to notify the AMF network element and the target UE that the first SF network element currently served has been changed to the second SF network element.
[0072] Optionally, the AMF network element sends a first change request to the first SF network element, and the first SF network element sends context information related to the target UE and the sensing service and a third change request to the second SF network element based on the first change request.
[0073] After receiving the context information and the third change request, the second SF network element responds to the third change request by sending a change response message to the AMF network element.
[0074] After receiving the change response message, the AMF network element sends the change response message to the target UE via NAS transmission message, and sends the transmission result to the second SF network element. The transmission result is used to notify the second SF network element that the target UE has received the change response message.
[0075] In one embodiment, such as Figure 4 As shown, another method for changing sensing function network elements is provided, which can be applied to... Figure 1 Taking the first SF network element currently in service as an example, the explanation includes the following steps:
[0076] Step 401: The first SF network element receives the first change request sent by the AMF network element corresponding to the target UE during the moving process.
[0077] Step 402: The first SF network element sends context information related to the target UE and the sensing service to the second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information. Here, the second SF network element is the new service SF network element.
[0078] Optionally, the first SF network element may perform different actions depending on whether the address of the second SF network element is included in the first change request.
[0079] The first change request carries the address of the second SF network element. Based on the first change request, the first SF network element sends context information related to the target UE and the sensing service to the second SF network element. This may include: the first SF network element sending the context information to the second SF network element according to the address of the second SF network element.
[0080] The address of the second SF network element is determined by the AMF network element after receiving the second change request, based on the query results of querying the sensing capability information of multiple SF network elements stored in the NRF network element.
[0081] The first change request does not carry the address of the second SF network element. Based on the first change request, the first SF network element sends context information related to the target UE and the sensing service to the second SF network element, which may include: the first SF network element determining the second SF network element; and the first SF network element sending context information to the second SF network element.
[0082] If the first change request does not carry the address of the second SF network element, the first SF network element will evaluate and determine whether it is suitable to continue supporting the current sensing service based on the operator's configuration and policies. If it is not suitable or cannot continue, the first SF network element will determine the second SF network element.
[0083] In the above-mentioned method for changing the sensing function network element, the first SF network element applied to the current service receives a first change request sent by the AMF network element corresponding to the target UE during the movement process. Based on the first change request, the first SF network element sends the context information related to the sensing service of the target UE to the second SF network element, so that the second SF network element can execute the sensing service process for the target UE according to the context information. The second SF network element is the new service SF network element, thereby realizing the change of the sensing function network element.
[0084] In one embodiment, the process of the first SF network element determining the second SF network element may include: the first SF network element querying the sensing capability information of multiple SF network elements stored in the NRF network element; and the first SF network element determining the second SF network element based on the query result.
[0085] Optionally, each SF network element can register its own sensing capability information with the NRF network element. Therefore, when the first SF network element needs to select an SF network element, it can obtain the required SF network element by querying the NRF network element. Thus, in determining the second SF network element, the first SF network element can query the sensing capability information of multiple SF network elements in the NRF network element. Based on the sensing target area information or target location information in the first change request and the sensing capability information of each SF network element, the first SF network element selects a target SF network element from the multiple SF network elements and uses this target SF network element as the second SF network element.
[0086] In one embodiment, the method may further include: after receiving a successful reception message from the second SF network element, the first SF network element releases the signaling connection established with other network elements when executing the perception service process of the target UE in the first SF network element; wherein the successful reception message is used to indicate that the second SF network element has successfully received the context information.
[0087] Optionally, the first SF network element sends context information related to the target UE and the sensing service and a third change request to the second SF network element based on the first change request. After receiving the context information and the third change request, the second SF network element responds to the third change request by sending a reception success message to the first SF network element.
[0088] After receiving the successful reception message, the first SF network element releases the signaling connections established with other network elements when executing the perception service process of the target UE. This frees up the storage space of the first SF network element and other network elements, and reduces resource consumption.
[0089] In one embodiment, considering the existence of various sensing modes such as gNB (the next generation Node B) self-transmission and reception, gNB1 transmission and gNB2 reception, UE transmission and gNB reception, gNB transmission and UE reception, UE1 transmission and UE2 reception, and UE self-transmission and reception, in order to support as many sensing modes as possible and take into account backward compatibility with network architecture enhancements, the following is provided: Figure 5 The diagram shows the structure of the perceptual network architecture.
[0090] SF network elements can register their own sensing capabilities information with NRF network elements, enabling other core network elements (such as AMF network elements) to select SF network elements with suitable capabilities to serve sensing services, thereby realizing the calculation of 3GPP sensing data and / or non-3GPP sensing data, and opening the calculated sensing results to third-party applications.
[0091] The API call is as follows:
[0092] (1) Nx: Used by SF network elements to control the execution of perception service processes through AMF network elements.
[0093] (2) Ny: Used by third-party applications to call the perception service function and obtain perception results through NEF network elements.
[0094] (3) Nz: If the sensed data is uploaded via the user plane, it is used by the SF network element to obtain the sensed data (which may be 3GPP sensed data and / or non-3GPP sensed data) through the UPF network element; if the sensed data is uploaded via the control plane, no new Nz interface is required.
[0095] (4) Existing N2, N3 and Uu interfaces can be reused. For example, control signaling from the AMF network element can be forwarded to the RAN through the N2 interface, and sensing data from the RAN side can be reported to the UPF network element through the N3 interface.
[0096] In one embodiment, such as Figure 6 As shown, a signaling interaction flowchart for a perception service process is provided, which includes the following steps:
[0097] 1. The AF sends a perception service request to the NEF network element. The perception service request carries at least the following content:
[0098] Sensing service type (such as dynamic map, vehicle tracking, etc.); sensing service requirements (such as sensing resolution, sensing duration, target area information, target location information, etc.); sensing node information (such as RAN / UE sensing capability information, etc.);
[0099] 2. The NEF network element requests authorization verification from the UDM network element to perform authorization checks on the perception service request. If the authorization verification is successful, the UDM network element returns the network element address of the current AMF network element; otherwise, the NEF network element rejects the perception service request.
[0100] 3. The NEF network element sends the perception service request from the AF to the AMF network element.
[0101] 4. In addition to AF, UE can also trigger perception service requests, that is, UE directly sends perception service requests to AMF network elements.
[0102] 5. After the AMF network element receives a sensing service request sent by an external AF / UE or other internal network elements, it triggers the sensing service and establishes a signaling connection with the sensing device (RAN / UE).
[0103] 6. The AMF network element selects the appropriate SF network element based on the sensing target area information or target location information in the sensing service request, as well as the sensing capability information of multiple SF network elements registered to the NRF network element.
[0104] 7. The AMF network element sends a sensing measurement request to the appropriate SF network element.
[0105] 8. Based on the sensing measurement request, the SF network element selects an appropriate sensing device (RAN and / or UE) to perform sensing measurements in order to obtain 3GPP sensing data.
[0106] Based on the above-mentioned sensing service process and sensing function network element change method, such as Figure 7 As shown, a signaling interaction flowchart for changing a sensing function network element is provided. The method for changing a sensing function network element includes the following steps:
[0107] 0. The SF1 network element (i.e., the first SF network element) selects a suitable sensing device (RAN and / or UE) to perform sensing measurements.
[0108] 1. The sensing devices (RAN and / or UE) upload the acquired sensing data (3GPP sensing data and / or non-3GPP sensing data) to the UPF network element.
[0109] 2. The UPF network element sends the sensing data to the SF1 network element.
[0110] 3. The SF1 network element performs sensing calculations to obtain sensing results.
[0111] 4. The sensing results are made available to the AF through the NEF network element.
[0112] 5. The UE (i.e. the target UE) sends a NAS transmission message to the AMF network element (the AMF network element corresponding to the target UE during movement), which includes a second change request, which includes the sensed target movement event or the UE movement event that performs the sensed measurement.
[0113] 6. Optionally, based on operator configuration and policies, when the AMF network element assesses and determines that SF1 is unsuitable / cannot continue to support the current sensing service, it determines a new SF2 network element (the second SF network element). For example, the AMF network element can query the sensing capability information of different SF network elements stored in the NRF network element to determine SF2.
[0114] 7. The AMF network element sends a notification (i.e., the first change request) to the SF1 network element, which includes the second change request received in step 5. If the AMF network element has determined a new SF2 network element in step 6, it also notifies the SF1 network element.
[0115] 8. Optionally, if the AMF network element does not indicate a new SF2 network element in step 7, the SF1 network element, based on operator configuration and policies, determines a new SF2 network element when it assesses and determines that it is unsuitable / unable to continue supporting the current sensing service. For example, the SF1 network element can query the sensing capability information of different SF network elements stored in the NRF network element to determine the SF2.
[0116] 9. The SF1 network element sends a notification to the SF2 network element to provide context information related to the UE and the sensing service, as well as a third change request. The third change request includes the first change request received in step 7.
[0117] 10. The SF2 network element sends a response (i.e., a success message) to the SF1 network element to indicate that the context information related to the UE's sensing service has been successfully transmitted. The SF1 network element releases the signaling connections established with other network elements when executing the UE's sensing service procedure.
[0118] 11. The SF2 network element sends a response to the AMF network element, which includes a change response message to notify the AMF network element that the SF network element has been changed.
[0119] 12. The AMF network element sends a NAS transmission message to the UE, which includes a change response message. The AMF network element also notifies the SF2 network element of the transmission result of the change response message.
[0120] 13. SF2 network elements select appropriate sensing devices (RAN and / or UE) to perform sensing measurements.
[0121] 14. The sensing devices (RAN and / or UE) upload the acquired sensing data to the UPF network element.
[0122] 15. The UPF network element sends the sensing data to the SF2 network element.
[0123] 16. The SF2 network element performs sensing calculations to obtain sensing results.
[0124] 17. The sensing results are made available to the AF through the NEF network element.
[0125] It should be understood that, although Figure 3-7 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 3-7 At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.
[0126] In one embodiment, such as Figure 8 As shown, a sensing function network element modification device 800 is provided. The sensing function network element modification device 800 includes: a modification module 801 and a first transmission module 802. Both the modification module 801 and the first transmission module 802 are configured in the AMF network element corresponding to the target UE during movement, wherein:
[0127] The change module 801 is used to determine that after the first sensing function SF network element of the current service is changed, the AMF network element changes the first SF network element to the second SF network element, and the second SF network element becomes the new service SF network element;
[0128] The first sending module 802 is used to send a sensing service request from the AMF network element to the second SF network element after determining that the first SF network element has been changed to the second SF network element.
[0129] In one embodiment, the change module 801 includes a first sending unit for sending a first change request to a first SF network element, so that the first SF network element sends context information related to the target UE and the perception service to a second SF network element based on the first change request, so that the second SF network element executes the perception service process for the target UE according to the context information.
[0130] In one embodiment, the first sending unit is specifically used to send a first change request to the first SF network element after the AMF network element receives the second change request sent by the target UE through the NAS transmission message.
[0131] In one embodiment, the first sending unit is specifically used to determine the second SF network element and send a first change request carrying the address of the second SF network element to the first SF network element.
[0132] In one embodiment, the first transmitting unit is specifically used to query the sensing capability information of multiple SF network elements stored in the NRF network element; and to determine the second SF network element based on the query result.
[0133] In one embodiment, the change module 801 includes a second sending unit, which, after receiving a change response message sent by the second SF network element, sends a change response message to the target UE via NAS transmission message. The change response message is used to notify the AMF network element and the target UE that the first SF network element currently served has been changed to the second SF network element.
[0134] In one embodiment, the first sending module 802 is specifically used to send a sensing service request to the second SF network element, so that the second SF network element executes a sensing service process for the target UE according to the sensing service request and context information.
[0135] In one embodiment, such as Figure 9 As shown, another sensing function network element change device is provided. The sensing function network element change device 900 includes: a receiving module 901 and a second transmitting module 902. Both the receiving module 901 and the transmitting module 902 are located in the currently serving first SF network element, wherein:
[0136] The receiving module 901 is used for the first SF network element to receive the first change request sent by the AMF network element corresponding to the target UE during the movement process;
[0137] The second sending module 902 is used to send context information related to the target UE and the sensing service to the second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information, wherein the second SF network element is a new service SF network element.
[0138] In one embodiment, the first change request carries the address of the second SF network element, and the second sending module 902 is specifically used to send context information to the second SF network element according to the address of the second SF network element.
[0139] In one embodiment, the second sending module 902 is specifically used to determine the second SF network element and send context information to the second SF network element.
[0140] In one embodiment, the second sending module 902 is specifically used to query the sensing capability information of multiple SF network elements stored in the NRF network element; and to determine the second SF network element based on the query result.
[0141] In one embodiment, the apparatus further includes a release module, configured to release the signaling connection established between the first SF network element and other network elements when executing the perception service process of the target UE, after receiving a successful reception message sent by the second SF network element; wherein the successful reception message is used to indicate that the second SF network element has successfully received the context information.
[0142] Specific limitations regarding the sensing function network element modification device can be found in the limitations of the sensing function network element modification method described above, and will not be repeated here. Each module in the aforementioned sensing function network element modification device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.
[0143] Figure 10 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device may include a transceiver 1001, a memory 1002, a processor 1003, and at least one communication bus 1004. The communication bus 1004 is used to realize communication connections between components. The memory 1002 may include a high-speed RAM memory, and may also include non-volatile memory (NVM), such as at least one disk storage device. The memory 1002 can store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transceiver 1001 can be a radio frequency processing module or a baseband processing module in the communication device. The transceiver 1001 can be coupled to the processor 1003, and can perform receiving or transmitting actions under the instruction or control of the processor 1003.
[0144] In this embodiment, transceiver 1001 is used to determine that after changing the first sensing function SF network element of the current service, the first SF network element is changed to the second SF network element, and the second SF network element is the new service SF network element;
[0145] The transceiver 1001 is also used to send a sensing service request to the second SF network element after determining that the first SF network element has been changed to the second SF network element.
[0146] In addition, the processor 1003 and transceiver 1001 are also used to implement the steps in any of the above-described embodiments of the sensing function network element change method.
[0147] In one embodiment, a chip is provided. Figure 11 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 11The chip 1100 shown includes a processor 1110, which can call and run computer programs from memory to implement the methods in the embodiments of this application.
[0148] Optionally, such as Figure 11 As shown, chip 1100 may further include memory 1120. Processor 1110 can retrieve and run computer programs from memory 1120 to implement the methods described in this embodiment. Memory 1120 may be a separate device independent of processor 1110, or it may be integrated into processor 1110.
[0149] Optionally, the chip 1100 may further include an input interface 1130. The processor 1110 can control the input interface 1130 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips. Optionally, the chip 1100 may further include an output interface 1140. The processor 1110 can control the output interface 1140 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.
[0150] Optionally, the chip 1100 can be applied to the communication device in the embodiments of this application, and the chip 1100 can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.
[0151] It should be understood that the chip 1100 mentioned in the embodiments of this application can also be called a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc. It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiments can be completed by the integrated logic circuit in the processor's hardware or by instructions in software form. The processor mentioned above can be 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, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.
[0152] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of any of the above-described embodiments of the sensing function network element modification method.
[0153] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of any of the above-described embodiments of the sensing function network element change method.
[0154] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.
[0155] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0156] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A method for modifying a sensing function network element, characterized in that, The method, applied to the Access and Mobility Management Function (AMF) network element corresponding to the target user equipment (UE) during movement, includes: After determining the first sensing function SF network element to change the current service, the AMF network element changes the first SF network element to the second SF network element, and the second SF network element becomes the new service SF network element; After determining that the first SF network element has been changed to the second SF network element, the AMF network element sends a sensing service request to the second SF network element; The AMF network element changes the first SF network element to the second SF network element, including: the AMF network element sending a first change request to the first SF network element, so that the first SF network element sends context information related to the target UE and the perception service to the second SF network element based on the first change request, so that the second SF network element executes the perception service process for the target UE according to the context information.
2. The method according to claim 1, characterized in that, The AMF network element sends a first change request to the first SF network element, including: After receiving the second change request sent by the target UE through the Non-Access Stratum (NAS) transmission message, the AMF network element sends the first change request to the first SF network element.
3. The method according to claim 1, characterized in that, The AMF network element sends a first change request to the first SF network element, including: The AMF network element determines the second SF network element; The AMF network element sends the first change request, carrying the address of the second SF network element, to the first SF network element.
4. The method according to claim 3, characterized in that, The AMF determines the second SF network element, including: The AMF network element queries the sensing capability information of multiple SF network elements stored in the NRF network element of the network storage function; The AMF network element determines the second SF network element based on the query results.
5. The method according to claim 1, characterized in that, The method further includes: After receiving the change response message sent by the second SF network element, the AMF network element sends the change response message to the target UE through NAS transmission messages. The change response message is used to notify the AMF network element and the target UE that the first SF network element currently being served has been changed to the second SF network element.
6. The method according to claim 1, characterized in that, The AMF network element sends a sensing service request to the second SF network element, including: The AMF network element sends a perception service request to the second SF network element, so that the second SF network element executes the perception service process for the target UE according to the perception service request and the context information.
7. A method for modifying a sensing function network element, characterized in that, The method, applied to the first SF network element currently providing the service, includes: The first SF network element receives the first change request sent by the AMF network element corresponding to the target UE during its movement; The first SF network element sends context information related to the target UE and the sensing service to the second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information, wherein the second SF network element is a new service SF network element; The method further includes: after receiving a successful reception message sent by the second SF network element, the first SF network element releases the signaling connection established with other network elements when the first SF network element executes the perception service process of the target UE; wherein, the successful reception message is used to indicate that the second SF network element has successfully received the context information.
8. The method according to claim 7, characterized in that, The first change request carries the address of the second SF network element. Based on the first change request, the first SF network element sends context information related to the target UE and the sensing service to the second SF network element, including: The first SF network element sends the context information to the second SF network element based on the address of the second SF network element.
9. The method according to claim 7, characterized in that, The first SF network element sends context information related to the target UE and sensing services to the second SF network element based on the first change request, including: The first SF network element determines the second SF network element; The first SF network element sends the context information to the second SF network element.
10. The method according to claim 9, characterized in that, The first SF network element determines the second SF network element, including: The first SF network element queries the sensing capability information of multiple SF network elements stored in the NRF network element; The first SF network element determines the second SF network element based on the query results.
11. A sensing function network element modification device, characterized in that, The device, applied to the AMF network element corresponding to the target UE during movement, includes: The change module is used to determine that after the first SF network element of the current service is changed, the AMF network element changes the first SF network element to the second SF network element, and the second SF network element becomes the new service SF network element; The first sending module is used to determine that after the first SF network element is changed to the second SF network element, the AMF network element sends a perception service request to the second SF network element; The change module includes a first sending unit, used by the AMF network element to send a first change request to the first SF network element, so that the first SF network element can send context information related to the target UE and the perception service to the second SF network element based on the first change request, so that the second SF network element can execute the perception service process for the target UE according to the context information.
12. A sensing function network element modification device, characterized in that, The device, applied to the first SF network element currently providing services, includes: The receiving module is used by the first SF network element to receive the first change request sent by the AMF network element corresponding to the target UE during the movement process; The second sending module is used to send context information related to the target UE and the sensing service to the second SF network element based on the first change request, so that the second SF network element can execute the sensing service process for the target UE according to the context information, wherein the second SF network element is a new service SF network element; The release module is used to release the signaling connection established between the first SF network element and other network elements when the first SF network element executes the perception service process of the target UE after receiving the reception success message sent by the second SF network element; wherein, the reception success message is used to indicate that the second SF network element has successfully received the context information.
13. A communication device comprising a memory, a processor, and a transceiver, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6 or 7 to 10 by controlling the transceiver.
14. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6 or 7 to 10.
15. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6 or 7 to 10.