Perception function network element change method and device, communication equipment and storage medium

Abstract

The invention relates to a perception function network element change method and device, communication equipment and a storage medium. The method is applied to an AMF network element corresponding to target UE in a moving process, and comprises the following steps: after a first sensing function (SF) network element of a current service is determined to be changed, the AMF network element changes the first SF network element into a second SF network element, and the second SF network element is a new service SF network element; and after determining that the first SF network element is changed into the second SF network element, the AMF network element sends a perception service request to the second SF network element. By adopting the method, the perception function network element change can be realized.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device, communication equipment and storage medium for changing a perception function network element. Background Art

[0002] Leveraging communication infrastructure to enable perception services is one of the key technologies for the evolution of 5G-A and future 6G networks, and is also one of the most important topics of 3GPP R19.

[0003] At present, 3GPP R19 is about to start discussions on the perception network architecture. In order to provide perception services in the network, it is necessary to introduce the sensing function network element (SensingFunction, SF) and the perception service process responsible for the management and control of the perception function, the calculation of the perception data and the opening of the perception results. However, when the perceived target moves or the UE (English: UserEquipment; Chinese: User Equipment) performing the perception measurement moves, the original SF network element may not be suitable for continuing to perform the perception service. Therefore, how to realize the change of the perception function network element has become an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a method, device, communication equipment and storage medium for changing a perception function network element, which can realize the change of the perception function network element.

[0005] In the first aspect, the present application provides a method for changing a perception function network element, which is applied to the AMF network element corresponding to the target UE during the movement process. The method includes: after determining that the first SF network element of the current service is changed, the AMF network element changes the first SF network element to a second SF network element, and the second SF network element is a new service 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 perception service request to the second SF network element.

[0006] In one of the embodiments, 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.

[0007] In one of the embodiments, 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, the AMF network element sends the first change request to the first SF network element.

[0008] In one of the embodiments, 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.

[0009] In one of the embodiments, the AMF determines the second SF network element, including: the AMF network element queries the perception capability information of multiple SF network elements stored in the NRF network element; the AMF network element determines the second SF network element according to the query result.

[0010] In one of the embodiments, the method also includes: after the AMF network element receives the change response message sent by the second SF network element, the AMF network element sends a change response message to the target UE through a NAS transmission message, and 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 of the embodiments, 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 performs a perception service process for the target UE according to the perception service request and context information.

[0012] In the second aspect, the present application provides a method for changing a perception function network element, which is applied to a first SF network element of a current service, and the method includes: the first SF network element receives a first change request sent by an AMF network element corresponding to the target UE during the movement process; 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, wherein the second SF network element is a new service SF network element.

[0013] In one of the embodiments, 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 perception service to the second SF network element based on the first change request, including: the first SF network element sends the context information to the second SF network element according to the address of the second SF network element.

[0014] In one of the embodiments, the first SF network element sends the context information related to the target UE and the perception service 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.

[0015] In one of the embodiments, the first SF network element determines the second SF network element, including: the first SF network element queries the perception capability information of multiple SF network elements stored in the NRF network element; and the first SF network element determines the second SF network element according to the query result.

[0016] In one of the embodiments, the method also includes: after the first SF network element receives a reception success message sent by the second SF network element, releasing 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 reception success message is used to indicate that the second SF network element has successfully received the context information.

[0017] In the third aspect, the present application provides a perception function network element change device, which is applied to the AMF network element corresponding to the target UE during the movement process, and the device includes: a change module, which is used to determine that after the first perception function SF network element of the current service is changed, the AMF network element changes the first SF network element to a second SF network element, and the second SF network element is a new service SF network element; a first sending module, which 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.

[0018] In one of the embodiments, the change module includes a first sending unit, which is used to send 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.

[0019] In one of the embodiments, 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 a NAS transmission message.

[0020] In one of the embodiments, the first sending unit is specifically configured to determine the second SF network element; and send a first change request carrying an address of the second SF network element to the first SF network element.

[0021] In one of the embodiments, the first sending unit is specifically configured to query the sensing capability information of multiple SF network elements stored in the NRF network element; and determine the second SF network element according to the query result.

[0022] In one of the embodiments, the change module includes a second sending unit, which is used for receiving the change response message sent by the second SF network element, and the AMF network element sends a change response message to the target UE through a NAS transmission message, and 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 of the embodiments, the first sending module is specifically configured to send a perception service request to the second SF network element, so that the second SF network element executes a perception service process for the target UE according to the perception service request and the context information.

[0024] In a fourth aspect, the present application provides a perception function network element change device, which is applied to the first SF network element of the current service, and the device includes: a receiving module, which is used for the first SF network element to receive a first change request sent by the AMF network element corresponding to the target UE during the movement process; a second sending module, which is used for the first SF network element to 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, wherein the second SF network element is a new service SF network element.

[0025] In one of the embodiments, the first change request carries the address of the second SF network element, and the second sending module is specifically configured to send the context information to the second SF network element according to the address of the second SF network element.

[0026] In one of the embodiments, the second sending module is specifically configured to determine a second SF network element; and send the context information to the second SF network element.

[0027] In one of the embodiments, the second sending module is specifically configured to query the sensing capability information of multiple SF network elements stored in the NRF network element; and determine the second SF network element according to the query result.

[0028] In one of the embodiments, the device also includes a release module, which is used to release the signaling connection established with other network elements when executing the perception service process of the target UE in the first SF network element 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.

[0029] In a fifth aspect, the present application provides a communication device comprising a memory, a processor and a transceiver, wherein the memory stores a computer program, and when the processor executes the computer program, it controls the transceiver to implement the steps of the perception function network element change method described in any one of the first aspects above.

[0030] In a sixth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method for changing a perception function network element as described in any one of the first aspects above are implemented.

[0031] In a seventh aspect, the present application further provides a chip, wherein the chip includes a programmable logic circuit and / or a program instruction, and when the chip is running, the steps of the method for changing a perception function network element described in any one of the first aspects are implemented.

[0032] In an eighth aspect, the present application also provides a computer program product, including a computer program, characterized in that when the computer program is executed by a processor, the steps of the method for changing the perception function network element described in any one of the above-mentioned first aspects are implemented.

[0033] The above-mentioned perception function network element change method, device, communication equipment and storage medium are applied to the AMF network element corresponding to the target UE during the movement process. After determining to change the first SF network element of the current service, the AMF network element changes the first SF network element to a new service second 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 perception service request to the second SF network element, thereby realizing the perception function network element change. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an application environment diagram of a method for changing a perception function network element in an embodiment;

[0035] Figure 2 A perception service application scenario in an embodiment;

[0036] Figure 3 A schematic diagram of a flow chart of a method for changing a perception function network element in an embodiment;

[0037] Figure 4 A flowchart of another method for changing a perception function network element in an embodiment;

[0038] Figure 5 A structural diagram of a perception network architecture in an embodiment;

[0039] Figure 6 A signaling interaction flow chart of a perception service process in an embodiment;

[0040] Figure 7 A signaling interaction flow chart of a perception function network element change in an embodiment;

[0041] Figure 8 It is a structural block diagram of a device for changing a perception function network element in an embodiment;

[0042] Fig. 9 It is a structural block diagram of another device for changing a perception function network element in an embodiment;

[0043] Fig.10 is a schematic structural diagram of a communication device in an embodiment;

[0044] Fig.11 The figure is a schematic diagram of the structure of a chip in an embodiment. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] Figure 1 A schematic diagram of an application scenario of a perception function network element change provided in an embodiment of the present application. Figure 1 As shown, the scenario includes all network elements in UE, RAN (English: Radio Access Network; Chinese: Wireless Access Network), AMF (English: Access and Mobility Management Function; Chinese: Access and Mobility Management Function) network element, SF network element, UPF (English: User Plane Function; Chinese: User Plane Function) network element, NEF (English: Network Exposure Function; Chinese: Network Exposure Function) network element, AF (English: Application Function; Chinese: Application Function), UDM (English: Unified Data Management; Chinese: Unified Data Management), and NRF (English: Network Repository Function; Chinese: Network Repository Function), and may also include only a part of the network elements. The above-mentioned multiple network elements can be connected to a service bus and communicate with each other through the service bus. The service bus can also be understood as a message bus. A network element can call services provided by other network elements by sending messages directed to the target network element on the service bus. The above-mentioned multiple network elements are network elements of the core network in the wireless communication network, wherein the wireless communication network can be a Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or a Wideband Code Division Multiple Access (WCDMA) network, or a Long Term Evolution (LTE) network, or a 5G network, which is not limited here.

[0047] Using communication infrastructure to enable sensing services is one of the key technologies for the evolution of 5G-A (full name: 5G-Advanced) and future 6G networks, and is also one of the most important topics of 3GPP R19. Sensing services have a wide range of applications, such as Figure 2 As shown, a perception service application scenario is provided, including multiple different scenarios such as indoor perception (such as smart meetings, gesture recognition) and outdoor perception (such as track safety monitoring, vehicle networking).

[0048] In the research on perception service scenarios and requirements conducted by 3GPP R19, the following are defined:

[0049] 1) 3GPP perception data: To achieve perception, the target or environment data of interest obtained through 3GPP wireless signals (such as reflection signals, refraction signals and diffraction signals, etc.) can be selectively processed in 5GS (English: 5G System; Chinese: 5G System).

[0050] 2) Perception results: processed 3GPP perception data based on the service consumer’s request.

[0051] 3) Non-3GPP perception data: For perception, the target or environment data of interest provided by non-3GPP sensors, such as video, radar and sonar data.

[0052] In order for 5G-A networks to support perception services, it is necessary to introduce SF network elements responsible for the management and control of perception functions, the calculation of perception data, and the disclosure of perception results. Therefore, it is necessary to first determine the general perception service network architecture and the basic perception service process.

[0053] Secondly, in periodic or triggered perception events, when the perceived target moves or the UE performing perception measurement moves, the serving AMF network element may be changed. At this time, the original SF network element may not be suitable for continuing to perform the perception service. For example, if the original SF network element is very far away from the changed serving AMF network element, it will cause excessive resource consumption when transmitting the signaling from the AMF network element to the SF network element. Therefore, how to realize the change of the perception function network element when the perceived target moves or the UE performing perception measurement moves has become an urgent problem to be solved.

[0054] Based on this, it is necessary to propose effective technical means to solve the above problems. The technical solution of the present application and how the technical solution of the present application solves the above technical problems are described in detail below with specific embodiments. The following 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 the present application will be described below in conjunction with the accompanying drawings.

[0055] In one embodiment, Figure 3 As shown, a method for changing a perception function network element is provided, and the method is applied to Figure 1 Taking the AMF network element corresponding to the target UE during the movement as an example, the following steps may be included:

[0056] Step 101, after determining to change the first SF network element of 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 is the new service SF network element.

[0057] Optionally, based on the operator's configuration and policy, the AMF network element may evaluate and determine whether the first SF network element of the current service is suitable for or continues to support the current service. If it is not suitable or cannot continue, it is determined to change the first SF network element of the current service. For example, the AMF network element determines whether the distance between the AMF network element and the first SF network element exceeds the distance threshold. If it exceeds, it is determined to change the first SF network element of the current service; if it does not exceed, it is determined not to update the first SF network element of the current service.

[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 is changed to the second SF network element, the AMF network element sends a perception 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 may determine that the first SF network element has been changed to the second SF network element, wherein 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 perception service sent by the first SF network element, so as to notify the AMF network element that the first SF network element currently serving has been changed to the second SF network element.

[0061] The AMF network element sends a perception service request to the second SF network element, which may include: the AMF network element sends a perception service request to the second SF network element, so that the second SF network element performs a perception service process for the target UE according to the perception service request and context information.

[0062] In another optional embodiment, the AMF network element sends a perception service request to the second SF network element, which may also include: after the AMF receives the first perception service request sent by the target UE or NEF network element, the AMF network element sends a second 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 second perception service request and context information.

[0063] In the above-mentioned perception function network element change method, it is applied to the AMF network element corresponding to the target UE during the movement process. After determining to change the first SF network element of the current service, the AMF network element changes the first SF network element to a new service second 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 perception service request to the second SF network element, thereby realizing the perception function network element change.

[0064] In one of the embodiments, 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 via a NAS transmission message, the AMF network element sends the first change request to the first SF network element.

[0065] Among them, the full name of NAS in English is Non Access Stratum, which means non-access layer in Chinese.

[0066] The second change request includes the perceived target mobility event or the UE mobility event performing the perception measurement. The first change request and the second change request may be the same or different, and they are both used to request the change of the SF network element, and the specific form is not limited here.

[0067] Optionally, after the AMF network element receives the second change request sent by the target UE through a NAS transmission message, the AMF network element determines the second SF network element; the AMF network element 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 the AMF network element receives the second change request sent by the target UE through a NAS transmission message, it generates a first change request for requesting the first SF network element to change the SF network element of the current service, and the AMF network element sends the first change request without carrying the address of the second SF network element to the first SF network element.

[0069] In one of the embodiments, the AMF determines the second SF network element, which may include: the AMF network element queries the perception capability information of multiple SF network elements stored in the NRF network element; and the AMF network element determines the second SF network element based on the query result.

[0070] Optionally, each SF network element can register its own perception capability information to the NRF network element, so that when the AMF needs to select a SF network element, it can obtain the required SF network element by querying the NRF network element. Therefore, in the process of determining the second SF network element, the AMF can query the perception capability information of multiple SF network elements in the NRF network element, and the AMF network element selects a target SF network element from multiple SF network elements based on the perception target area information or target location information in the second change request and the perception capability information of each SF network element, and uses the target SF network element as the second SF network element.

[0071] In one of the embodiments, the method may also include: after the AMF network element receives the change response message sent by the second SF network element, the AMF network element sends a change response message to the target UE through a NAS transmission message, and 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 perception 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 sends a change response message to the AMF network element in response to the third change request.

[0074] After receiving the change response message, the AMF network element sends the change response message to the target UE through the NAS transmission message, and sends the delivery result to the second SF network element, which is used to notify the second SF network element that the target UE has received the change response message.

[0075] In one embodiment, Figure 4 As shown, another method for sensing functional network element changes is provided, and this method is applied to Figure 1 The first SF network element currently serving in the example is used for explanation, including the following steps:

[0076] Step 401: The first SF network element receives a first change request sent by the AMF network element corresponding to the target UE during the movement process.

[0077] Step 402: 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 can perform the perception service process for the target UE according to the context information, wherein the second SF network element is a new service SF network element.

[0078] Optionally, the first SF network element may perform different actions according to whether the first change request carries the address of the second SF network element.

[0079] The first change request carries the address of the second SF network element, and the first SF network element sends the context information related to the target UE and the perception service to the second SF network element based on the first change request, which may include: the first SF network element sends the context information to the second SF network element according to the address of the second SF network element.

[0080] Among them, 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 result of the perception 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. The first SF network element sends the context information related to the target UE and the perception service to the second SF network element based on the first change request, which may include: 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.

[0082] Among them, 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 for or continues to support the current perception service based on the operator's configuration and policy. If it is not suitable or cannot continue, the first SF network element determines the second SF network element.

[0083] In the above-mentioned perception function network element change method, the first SF network element applied to the current service receives the first change request sent by the AMF network element corresponding to the target UE during the movement process, and then sends the 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, wherein the second SF network element is a new service SF network element, thereby realizing the change of the perception function network element.

[0084] In one of the embodiments, the first SF network element determining the second SF network element may include: the first SF network element querying the perception 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 according to the query result.

[0085] Optionally, each SF network element may register its own perception capability information to the NRF network element, so that when the first SF network element needs to select a SF network element, it can obtain the required SF network element by querying the NRF network element. Therefore, in the process of determining the second SF network element, the first SF network element may query the perception capability information of multiple SF network elements in the NRF network element, and the first SF network element selects a target SF network element from multiple SF network elements according to the perception target area information or target location information in the first change request and the perception capability information of each SF network element, and uses the target SF network element as the second SF network element.

[0086] In one of the embodiments, the method may also include: after the first SF network element receives a reception success message sent by the second SF network element, releasing 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 reception success 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 perception service and a third change request to the second SF network element based on the first change request. After the second SF network element receives the context information and the third change request, it sends a reception success message to the first SF network element in response to the third change request.

[0088] After receiving the reception success message, 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, so that the storage space of the first SF network element and other network elements can be released, and resource consumption can be reduced.

[0089] In one embodiment, considering that there are sensing modes of gNB (English: the next Generation Node B; Chinese: next generation base station) sending and receiving, gNB1 sending and gNB2 receiving, UE sending and gNB receiving, gNB sending and UE receiving, UE1 sending and UE2 receiving, and UE sending and receiving, in order to support as many sensing modes as possible and take into account the enhanced backward compatibility of the network architecture, the following is provided: Figure 5 The structural diagram of the perception network architecture is shown.

[0090] SF network elements can register their own perception capability information to NRF network elements, so that other core network elements (such as AMF network elements) can select SF network elements with suitable capabilities to serve perception services, so as to realize the calculation of 3GPP perception data and / or non-3GPP perception data, and open the calculated perception results to third-party applications.

[0091] The interface call is as follows:

[0092] (1) Nx: used by SF network elements to control the execution of the perception service process through AMF network elements.

[0093] (2) Ny: used by third-party applications to call perception service functions and obtain perception results through NEF network elements.

[0094] (3) Nz: If the perception data is uploaded via the user plane, it is used for the SF network element to obtain the perception data (which may be 3GPP perception data and / or non-3GPP perception data) through the UPF network element; if the perception data is uploaded via the control plane, there is no need to add a new Nz interface

[0095] (4) The existing N2, N3, and Uu interfaces can be reused. For example, the control signaling from the AMF network element can be forwarded to the RAN through the N2 interface, and the perception data on the RAN side can be reported to the UPF network element through the N3 interface.

[0096] In one embodiment, Figure 6 As shown, a signaling interaction flow chart of a perception service process is provided, and the perception service process includes the following steps:

[0097] 1. The AF sends a sensing service request to the NEF network element. The sensing service request carries at least the following contents:

[0098] Perception service type (such as at least one of dynamic map and vehicle tracking); perception service requirements (such as at least one of perception resolution, perception duration, target area information, target location information); perception node information (such as perception capability information of RAN / UE, etc.);

[0099] 2. The NEF network element requests authorization verification from the UDM network element to perform an authorization check on the perception service request. If the authorization verification is successful, the UDM network element returns the network element address of the current serving 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 request, that is, UE directly sends perception service request to AMF network element.

[0102] 5. After the AMF network element receives the perception service request sent by the external AF / UE / other internal network elements, it triggers the perception service and establishes a signaling connection with the perception device (RAN / UE).

[0103] 6. The AMF network element selects a suitable SF network element based on the perception target area information or target location information in the perception service request and the perception capability information of multiple SF network elements registered with the NRF network element.

[0104] 7. The AMF network element sends a perception measurement request to the appropriate SF network element.

[0105] 8. Based on the perception measurement request, the SF network element selects appropriate perception devices (RAN and / or UE) to perform perception measurements to obtain 3GPP perception data.

[0106] Based on the above perception service process and perception function network element change method, such as Figure 7 As shown, a signaling interaction flow chart of perception function network element change is provided, and the perception function network element change method 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 perception device (RAN and / or UE) uploads the acquired perception data (3GPP perception data and / or non-3GPP perception data) to the UPF network element.

[0109] 2. The UPF network element sends the sensing data to the SF1 network element.

[0110] 3. SF1 network element performs perception calculation to obtain the perception result.

[0111] 4. Open the sensing results to AF through NEF network elements.

[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 the movement process), which includes a second change request, and the second change request includes the perceived target movement event or the UE movement event that performs the perception measurement.

[0113] 6. Optionally, based on the operator configuration and policy, the AMF network element determines a new SF2 network element (second SF network element) when evaluating and determining that SF1 is not suitable / cannot continue to support the current perception service. For example, the AMF network element may query the perception 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 the 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, based on the operator configuration and policy, the SF1 network element determines a new SF2 network element when it evaluates and determines that it is not suitable / cannot continue to support the current perception service. For example, the SF1 network element may query the perception capability information of different SF network elements stored in the NRF network element to determine SF2.

[0116] 9. The SF1 network element sends a notification to the SF2 network element to provide the UE context information related to the perception service and a third change request. The third change request includes the first change request received in step 7.

[0117] 10. SF2 network element sends a response (i.e., a successful reception message) to SF1 network element to indicate that the context information related to the UE and the perception service is successfully transmitted. SF1 network element releases the signaling connection established with other network elements when executing the UE's perception service process.

[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 transport message to the UE, which includes a change response message. The AMF network element also notifies the SF2 network element of the delivery result of the change response message.

[0120] 13. The SF2 network element selects appropriate sensing equipment (RAN and / or UE) to perform sensing measurements.

[0121] 14. The sensing device (RAN and / or UE) uploads 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. SF2 network element performs perception calculation to obtain perception results.

[0124] 17. The sensing results are made available to AF through NEF network elements.

[0125] It should be understood that although Figure 3-7 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 3-7 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0126] In one embodiment, Figure 8 As shown, a perception function network element change device is provided, and the perception function network element change device 800 includes: a change module 801 and a first sending module 802, and the change module 801 and the first sending module 802 are both arranged in the AMF network element corresponding to the target UE during the movement process, wherein:

[0127] A change module 801 is used to determine that after changing the first perception function SF network element of 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 is a new service SF network element;

[0128] The first sending module 802 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.

[0129] In one of the embodiments, the change module 801 includes a first sending unit, which is used to send 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.

[0130] In one of the embodiments, 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 a NAS transmission message.

[0131] In one of the embodiments, the first sending unit is specifically configured to determine the second SF network element; and send a first change request carrying an address of the second SF network element to the first SF network element.

[0132] In one of the embodiments, the first sending unit is specifically configured to query the sensing capability information of multiple SF network elements stored in the NRF network element; and determine the second SF network element according to the query result.

[0133] In one of the embodiments, the change module 801 includes a second sending unit, which is used for receiving the change response message sent by the second SF network element, and the AMF network element sends a change response message to the target UE through a NAS transmission message, and 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 of the embodiments, the first sending module 802 is specifically configured to send a perception service request to the second SF network element, so that the second SF network element performs a perception service process for the target UE according to the perception service request and the context information.

[0135] In one embodiment, Fig. 9 As shown, another perception function network element change device is provided, and the perception function network element change device 900 includes: a receiving module 901 and a second sending module 902, and the receiving module 901 and the second sending module 902 are both set in the first SF network element of the current service, wherein:

[0136] A receiving module 901 is configured for a first SF network element to receive a first change request sent by an AMF network element corresponding to a target UE during a moving process;

[0137] The second sending module 902 is used for the first SF network element to 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, wherein the second SF network element is a new service SF network element.

[0138] In one of the embodiments, the first change request carries the address of the second SF network element, and the second sending module 902 is specifically configured to send the context information to the second SF network element according to the address of the second SF network element.

[0139] In one of the embodiments, the second sending module 902 is specifically configured to determine a second SF network element; and send the context information to the second SF network element.

[0140] In one of the embodiments, the second sending module 902 is specifically configured to query the sensing capability information of multiple SF network elements stored in the NRF network element; and determine the second SF network element according to the query result.

[0141] In one of the embodiments, the device also includes a release module, which is used to release the signaling connection established with other network elements when executing the perception service process of the target UE in the first SF network element 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.

[0142] For the specific limitations of the perception function network element change device, please refer to the limitations of the perception function network element change method above, which will not be repeated here. Each module in the above-mentioned perception function network element change device can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0143] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present 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 the communication connection between components. The memory 1002 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory. Various programs may be stored in the memory 1002 to complete various processing functions and implement the method steps of this embodiment. In this embodiment, the transceiver 1001 may be a radio frequency processing module or a baseband processing module in the communication device, and the transceiver 1001 may be coupled to the processor 1003, which can realize the receiving or transmitting action under the instruction or control of the processor 1003.

[0144] In this embodiment, the transceiver 1001 is used to determine that after changing the first sensing function SF network element of the current service, change the first SF network element to a second SF network element, and the second SF network element is a new service SF network element;

[0145] The transceiver 1001 is further configured to send a perception service request to the second SF network element after determining that the first SF network element is changed to the second SF network element.

[0146] In addition, the processor 1003 and the transceiver 1001 are also used to implement the steps in any of the above-mentioned perception function network element change method embodiments.

[0147] In one embodiment, a chip is provided. Fig.11 It is a schematic structural diagram of the chip of an embodiment of the present application. Fig.11The chip 1100 shown includes a processor 1110, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0148] Alternatively, if Fig.11 As shown, the chip 1100 may further include a memory 1120. The processor 1110 may call and run a computer program from the memory 1120 to implement the method in the embodiment of the present application. The memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.

[0149] Optionally, the chip 1100 may further include an input interface 1130. The processor 1110 may control the input interface 1130 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Optionally, the chip 1100 may further include an output interface 1140. The processor 1110 may control the output interface 1140 to communicate with other devices or chips, and specifically, may 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 the present application, and the chip 1100 can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of the present application, which will not be described again for the sake of brevity.

[0151] It should be understood that the chip 1100 mentioned in the embodiment of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc. It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor can be executed. The software module can be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0152] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned perception function network element change method embodiments are implemented.

[0153] In one embodiment, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned perception function network element change method embodiments.

[0154] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database 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 memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0155] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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 above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for changing a perception function network element, characterized in that: Applied to an access and mobility management function AMF network element corresponding to a target user equipment UE during movement, the method comprising: After determining to change the first perception function SF network element of 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 is a new service 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 perception service request to the second SF network element.

2. The method according to claim 1, characterized in that 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 the context information of the target UE related to 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.

3. The method according to claim 2, characterized in that The AMF network element sends a first change request to the first SF network element, including: After the AMF network element receives the second change request sent by the target UE through the non-access layer NAS transmission message, it sends the first change request to the first SF network element.

4. The method according to claim 2, 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.

5. The method according to claim 4, characterized in that The AMF determines the second SF network element, including: The AMF network element queries the perception capability information of multiple SF network elements stored in the network storage function NRF network element; The AMF network element determines the second SF network element based on the query result.

6. The method according to claim 2, characterized in that The method further comprises: 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 a NAS transmission message, and 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.

7. The method according to claim 2, characterized in that: 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 performs a perception service process for the target UE according to the perception service request and the context information.

8. A method for changing a perception function network element, characterized in that: Applied to the first SF network element of the current service, the method comprising: The first SF network element receives a first change request sent by an AMF network element corresponding to the target UE during the movement process; The first SF network element sends the context information of the target UE related to 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, wherein the second SF network element is a new service SF network element.

9. The method according to claim 8, characterized in that The first change request carries the address of the second SF network element, and the first SF network element sends the context information related to the target UE and the perception service to the second SF network element based on the first change request, including: The first SF network element sends the context information to the second SF network element according to the address of the second SF network element.

10. The method according to claim 8, characterized in that The first SF network element sending the context information related to the target UE and the perception service to the second SF network element based on the first change request includes: 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.

11. The method according to claim 10, characterized in that The first SF network element determines the second SF network element, including: The first SF network element queries the perception capability information of multiple SF network elements stored in the NRF network element; The first SF network element determines the second SF network element according to the query result.

12. The method according to claim 8, characterized in that The method further comprises: After receiving the reception success 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; The reception success message is used to indicate that the second SF network element successfully receives the context information.

13. A device for changing a perception function network element, characterized in that: Applied to the AMF network element corresponding to the target UE during the movement process, the device includes: A change module, configured to determine that after changing the first SF network element of the current service, the AMF network element changes the first SF network element to a second SF network element, and the second SF network element is a 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.

14. A device for changing a perception function network element, characterized in that: The device is applied to a first SF network element currently serving, and comprises: A receiving module, configured for the first SF network element to receive a first change request sent by an AMF network element corresponding to the target UE during the movement process; The second sending module is used for the first SF network element to send the 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 perform the perception service process for the target UE according to the context information, wherein the second SF network element is a new service SF network element.

15. 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, the processor implements the steps of the method according to any one of claims 1 to 7 or 8 to 12 by controlling the transceiver.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 or 8 to 12 are implemented.

17. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 or 8 to 12 are implemented.

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