Method and apparatus for selecting session management function based on augmented reality service, and storage medium

Abstract

The present disclosure relates to a method and device for selecting a session management function based on an augmented reality service, and a storage medium, the method comprising: performing SMF selection, wherein the performing SMF selection comprises selecting an SMF based on augmented reality service XRM service indication information or an XRM group identifier ID. The present disclosure makes the SMF selection of the augmented reality service more reasonable, and improves the service quality of the XRM service of the 5G system.

Description

Technical Field

[0001] This disclosure relates to a session management function selection technology for augmented reality services, and more particularly to a method, apparatus, and storage medium for selecting session management functions based on augmented reality services. Background Technology

[0002] Mobile media services, XR services such as Augmented Reality (AR) / Virtual Reality (VR), cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly higher traffic to 5G networks. XR services involve multimodal data streams. Multimodal data describes data input from the same or different devices for the same service / application, which may be output to one or more destination devices. The data streams within multimodal data often have a certain degree of correlation, even strong correlation, such as the synchronization of audio and video streams, or the synchronization of haptic and visual senses. These media service data streams themselves, the relationships between different data streams, and the network transmission requirements of these service data streams all share some common characteristics. Effective identification and utilization of these characteristics will be more conducive to network and service transmission and control, and will also contribute to service assurance and user experience.

[0003] XRM services require the 5GS system to comprehensively consider the QoS characteristics of relevant data streams, such as whether parameters like delayed critical guaranteed bit rate (GBR) data streams, guaranteed flow bit rate (GFBR), packet delay budget (PDB), and default maximum data burst volume (MDBV) can be simultaneously met and consistently maintained. For XRM services involving a single UE, the coordination of QoS characteristics and policy rules among multiple data streams of that UE is crucial. For XRM services involving multiple UEs, consistency in QoS authorization and execution among the multiple UEs is essential. Currently, the 5GS system lacks corresponding QoS and policy mechanisms to meet these service requirements, and there are no suitable technical solutions to support these functional characteristics of XRM services. Summary of the Invention

[0004] In view of this, embodiments of the present disclosure provide a method, apparatus, and storage medium for selecting session management functions based on augmented reality services.

[0005] According to a first aspect of this disclosure, a method for selecting session management functions based on augmented reality services is provided, applied to a first network element, the method comprising:

[0006] Perform SMF selection, wherein performing SMF selection includes selecting an SMF based on Augmented Reality Service (XRM) Service Indication Information or XRM Group Identifier ID.

[0007] In some exemplary embodiments, the first network element includes at least one of the following:

[0008] Access and Mobility Management Functions (AMF);

[0009] Network storage function (NRF).

[0010] In some exemplary embodiments, when the first network element is an AMF, the method further includes:

[0011] When selecting an SMF in AMF, the same SMF is selected for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0012] In some exemplary embodiments, the method further includes:

[0013] In the SMF selection subscription information in the Unified Data Management Function (UDM), the following information is added: Select the same SMF for multiple sessions with XRM service indications and / or the same XRM group ID.

[0014] In some exemplary embodiments, when the first network element is an AMF, the method further includes:

[0015] In the AMF's local configuration information or the SMF subscription information in the UDM, the XRM service instruction and / or XRM group ID are used as inputs for SMF selection.

[0016] In some exemplary embodiments, the method further includes:

[0017] AMF selects the same SMF for sessions related to XRM service instructions or XRM group IDs.

[0018] In some exemplary embodiments, selecting the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID includes:

[0019] For multiple sessions with the same data network name DNN and / or the same single network slice, select the same SMF for auxiliary information S-NSSAI and / or XRM group ID.

[0020] In some exemplary embodiments, the XRM group ID may be a reused existing network intranet group ID.

[0021] In some exemplary embodiments, if the session associated with the XRM service instruction or XRM group ID does not select SMF, then SMF is selected.

[0022] In some exemplary embodiments, if the session associated with the XRM service instruction or XRM group ID has already selected an SMF, then the same SMF is selected for the current associated session.

[0023] In some exemplary embodiments, if an XRM service indication or XRM group ID related session has selected an SMF and the selected SMF cannot meet the QoS requirements of the XRM service, a new SMF is selected and an SMF reselection is initiated; if there are migrateable PDU sessions in the old SMF, the relevant old SMF PDU sessions are migrated to the new SMF.

[0024] In some exemplary embodiments, the method further includes:

[0025] If the Network Storage Function (NRF) performs SMF discovery selection, the AMF selects the same SMF for XRM service indication or XRM group ID related sessions via the NRF.

[0026] In some exemplary embodiments, when the first network element is an NRF, the method further includes:

[0027] The SMF registers with the NRF and obtains a profile. The NRF's SMF selection information includes the XRM service instruction and / or XRM group ID.

[0028] NRF-tagged SMFs are available.

[0029] According to a second aspect of this disclosure, a session management function selection device based on augmented reality services is provided, applied to a first network element, the device comprising:

[0030] The execution unit is configured to perform SMF selection, wherein the execution of SMF selection includes selecting an SMF based on XRM service indication information or XRM group identifier ID.

[0031] In some exemplary embodiments, the first network element includes at least one of the following:

[0032] AMF;

[0033] NRF.

[0034] In some exemplary embodiments, when the first network element is an AMF, the apparatus further includes:

[0035] The first selection unit is used in the SMF selection function in the AMF. When configured to select an SMF, it selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0036] In some exemplary embodiments, the apparatus further includes:

[0037] The configuration unit is set to add the following information to the SMF selection subscription information in the UDM: select the same SMF for multiple sessions with XRM service indication and / or with the same XRM group ID.

[0038] In some exemplary embodiments, when the first network element is an AMF, the execution unit is further configured as follows:

[0039] In the AMF's local configuration information or the SMF subscription information in the UDM, the XRM service instruction and / or XRM group ID are used as inputs for SMF selection.

[0040] In some exemplary embodiments, the apparatus further includes:

[0041] The second selection unit is configured to select the same SMF for sessions related to XRM service indications or XRM group IDs.

[0042] In some exemplary embodiments, the first selection unit is further configured to:

[0043] Select the same SMF for multiple sessions with the same DNN and / or the same S-NSSAI and / or XRM group ID.

[0044] In some exemplary embodiments, the XRM group ID may be a reused existing network intranet group ID.

[0045] In some exemplary embodiments, the second selection unit is further configured to:

[0046] If the session associated with the XRM service instruction or XRM group ID does not select SMF, then select SMF.

[0047] In some exemplary embodiments, the second selection unit is further configured to: if the session related to the XRM service indication or XRM group ID has already selected an SMF, then select the same SMF for the current related session.

[0048] In some exemplary embodiments, the second selection unit is further configured to: if an XRM service indication or XRM group ID related session has selected an SMF and the selected SMF cannot meet the XRM service quality of service (QoS) requirements, then a new SMF is selected and an SMF reselection is initiated; if there are migrateable PDU sessions in the old SMF, the relevant old SMF PDU sessions are migrated to the new SMF.

[0049] In some exemplary embodiments, the apparatus further includes:

[0050] The third selection unit is configured to select the same SMF for XRM service indication or XRM group ID related sessions via NRF when NRF performs SMF discovery selection.

[0051] In some exemplary embodiments, when the first network element is an NRF, the SMF registers with the NRF and obtains a profile. The SMF selection information of the NRF includes an XRM service indication and / or an XRM group ID.

[0052] NRF-tagged SMFs are available.

[0053] According to a third aspect of this disclosure, a storage medium is provided having an executable program stored thereon, which, when executed by a processor, implements the steps of the session management function selection method based on augmented reality services.

[0054] The technical solution of this disclosure improves the XRM service quality of 5G systems by setting augmented reality service XRM service indication information or XRM group identifier ID in the SMF selection strategy. In this way, a better SMF strategy can be selected during the session establishment process for XRM services. Attached Figure Description

[0055] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

[0056] Figure 1 This is a schematic diagram of the structure of a wireless communication system according to an exemplary embodiment;

[0057] Figure 2 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment.

[0058] Figure 3 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment.

[0059] Figure 4This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment.

[0060] Figure 5 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment.

[0061] Figure 6 This is a schematic diagram illustrating the composition of an apparatus for selecting a session management function based on augmented reality services, according to an exemplary embodiment.

[0062] Figure 7 This is a schematic diagram illustrating the composition structure of a user equipment according to an exemplary embodiment. Detailed Implementation

[0063] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of embodiments of this disclosure.

[0064] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of this disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0065] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0066] Please refer to Figure 1 This illustration shows a schematic diagram of the structure of a wireless communication system provided in an embodiment of this disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include: a number of terminals 11 and a number of base stations 12.

[0067] Terminal 11 can be a device that provides voice and / or data connectivity to a user. Terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). Terminal 11 can be an Internet of Things (IoT) terminal, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, Terminal 11 can also be a device in an unmanned aerial vehicle (UAV). Alternatively, Terminal 11 can also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless communication device connected to an external vehicle computer. Alternatively, terminal 11 can also be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0068] Base station 12 can be a network-side device in a wireless communication system. This wireless communication system can be a fourth-generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system; or it can be a 5G system, also known as a New Radio (NR) system or a 5G NR system. Alternatively, it can be any generation of system. In a 5G system, the access network can be called NG-RAN (New Generation-Radio Access Network), or an MTC system.

[0069] In this embodiment, base station 12 can be an evolved NB (eNB) used in a 4G system. Alternatively, base station 12 can also be a gNB (gNB) using a centralized-distributed architecture in a 5G system. When base station 12 adopts a centralized-distributed architecture, it typically includes a Central Unit (CU) and at least two Distributed Units (DUs). The Central Unit is equipped with a protocol stack of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Media Access Control (MAC) layer; the Distributed Units are equipped with a Physical (PHY) layer protocol stack. This disclosure does not limit the specific implementation of base station 12.

[0070] Base station 12 and terminal 11 can establish a wireless connection via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as a new air interface; or, the wireless air interface can also be a wireless air interface based on a next-generation mobile communication network technology standard based on 5G.

[0071] In some embodiments, terminals 11 can also establish E2E (End to End) connections. Examples include V2V (vehicle to vehicle), V2I (vehicle to Infrastructure), and V2P (vehicle to Pedestrian) communication scenarios in vehicle-to-everything (V2X) communication.

[0072] In some embodiments, the wireless communication system described above may further include a network management device 13.

[0073] The execution entities involved in the embodiments of this disclosure include, but are not limited to, terminals (UE, User Equipment) in cellular mobile communication systems and base stations in cellular mobile communication systems.

[0074] Figure 2 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment. Figure 2 As shown, embodiments of this disclosure Figure 2The session management function selection method based on augmented reality services, as illustrated in an exemplary embodiment, is applied to a first network element. The method includes the following processing steps:

[0075] Step 201, perform SMF selection, wherein performing SMF selection includes selecting an SMF based on Augmented Reality Service (XRM) service indication information or XRM group identifier ID.

[0076] The first network element includes at least one of the following:

[0077] Access and Mobility Management Functions (AMF);

[0078] Network Repository Function (NRF).

[0079] In this embodiment of the disclosure, when the first network element is an AMF, the SMF selection function in the AMF selects an SMF based on the SMF selection policy, and selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0080] In the SMF selection subscription information within the Unified Data Management (UDM) function, at least the following policy or related information should be added: Select the same SMF for multiple sessions with XRM service indications and / or the same XRM group ID.

[0081] In one embodiment of this disclosure, when the first network element is an AMF, the XRM service indication and / or XRM group ID are used as inputs for SMF selection in the AMF's local configuration policy or the SMF subscription information in the UDM.

[0082] In this way, the AMF selects the same SMF for sessions related to XRM service instructions or XRM group IDs.

[0083] In this embodiment of the disclosure, as one implementation, selecting the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID includes:

[0084] For multiple sessions with the same data network name DNN and / or the same single network slice, select the same SMF for auxiliary information S-NSSAI and / or XRM group ID.

[0085] In this embodiment of the disclosure, the XRM group ID can be reused from an existing network intranet group ID.

[0086] As one implementation, if the session associated with the XRM service instruction or XRM group ID does not select an SMF, then an SMF is selected according to the SMF selection strategy.

[0087] As one implementation method, if the session related to the XRM service instruction or XRM group ID has already selected an SMF, then the same SMF will be selected for the current related session.

[0088] As one implementation method, if the XRM service instruction or XRM group ID related session has selected an SMF, and the selected SMF cannot meet the QoS requirements of the XRM service, then a new SMF is selected and an SMF reselection is initiated; if there are migrateable PDU sessions in the old SMF, the relevant old SMF PDU sessions are migrated to the new SMF.

[0089] Based on the foregoing processing steps, the method of this disclosure embodiment may further include:

[0090] If the Network Storage Function (NRF) performs SMF discovery selection, the AMF selects the same SMF for XRM service indication or XRM group ID related sessions via the NRF.

[0091] As one implementation, when the first network element is an NRF, the method further includes:

[0092] Register the SMF with the NRF and obtain the profile configuration file. The SMF selection information in the NRF includes the XRM service instruction and / or the XRM group ID.

[0093] NRF-tagged SMFs are available.

[0094] Figure 3 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment. Figure 3 As shown, embodiments of this disclosure Figure 3 The method for selecting session management functions based on augmented reality services, as illustrated in an exemplary embodiment, is applied to AMF. The method includes the following processing steps:

[0095] Step 301: The AMF selects the SMF based on the Augmented Reality Service (XRM) service indication information or the XRM group identifier ID.

[0096] Specifically, the AMF performs SMF selection, wherein performing SMF selection includes selecting an SMF based on Augmented Reality Service (XRM) service indication information or XRM group identifier ID.

[0097] Step 302: The AMF selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID. In this embodiment of the disclosure, when the SMF selection function in the AMF selects an SMF based on the SMF selection policy, it selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0098] In the SMF selection subscription information within the Unified Data Management Function (UDM), at least the following policies or related information are added: selecting the same SMF for multiple sessions with XRM service indications and / or the same XRM group ID. In this embodiment, the UDM subscription context stores relevant subscription and dynamic data information, facilitating the AMF or NRF to retrieve relevant SMF selection policies from the UDM subscription context, such as the SMF selection subscription information, when performing SMF selection. Generally, the AMF or NRF can select the SMF based solely on local policies, or determine the SMF jointly with the "SMF selection information" stored in the UDM obtained from the UMD, or determine the SMF solely from the "SMF selection information" stored in the UDM obtained from the UMD.

[0099] In one embodiment of this disclosure, the AMF selects an SMF by using the XRM service instruction and / or XRM group ID as inputs for SMF selection in the AMF's local configuration policy or the SMF subscription information in the UDM.

[0100] In this way, the AMF selects the same SMF for sessions related to XRM service instructions or XRM group IDs.

[0101] In this embodiment of the disclosure, as one implementation, the AMF selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID, specifically including:

[0102] For multiple sessions with the same data network name DNN and / or the same single network slice, select the same SMF for auxiliary information S-NSSAI and / or XRM group ID.

[0103] In this embodiment of the disclosure, the XRM group ID can be reused from an existing network intranet group ID.

[0104] As one implementation, if the session associated with the XRM service instruction or XRM group ID does not select an SMF, the AMF selects an SMF according to the SMF selection strategy.

[0105] As one implementation, if the session associated with the XRM service instruction or XRM group ID has already selected an SMF, then the AMF will select the same SMF for the current related session.

[0106] As one implementation method, if the XRM service instruction or XRM group ID related session has selected an SMF, and the selected SMF cannot meet the QoS requirements of the XRM service, then the AMF will reselect a new SMF and initiate an SMF reselection; if there are migrateable PDU sessions in the old SMF, the relevant old SMF PDU sessions will be migrated to the new SMF.

[0107] Based on the foregoing processing steps, the method of this disclosure embodiment may further include:

[0108] If the Network Storage Function (NRF) performs SMF discovery selection, the AMF selects the same SMF for XRM service indication or XRM group ID related sessions via the NRF.

[0109] Figure 4 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment. Figure 4 As shown, the session management function selection method based on augmented reality services in this embodiment of the present disclosure is applied to NRF, and the method includes the following processing steps:

[0110] Step 401: The NRF selects the SMF based on the Augmented Reality Service (XRM) Service Indication Information or the XRM Group Identifier ID.

[0111] Specifically, the NRF performs SMF selection, which includes selecting an SMF based on Augmented Reality Service (XRM) Service Indication Information or an XRM Group Identifier ID.

[0112] Step 402: The NRF selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0113] In this embodiment of the disclosure, when the SMF selection function in the NRF selects an SMF based on the SMF selection policy, it selects the same SMF for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0114] In the SMF selection subscription information in the UDM, at least the following policies or related information are added: selecting the same SMF for multiple sessions with XRM service indications and / or the same XRM group ID. In this embodiment of the disclosure, the UDM subscription context stores relevant subscription and dynamic data information, which facilitates the NRF and other systems to obtain relevant SMF selection policies from the UDM subscription context, such as the SMF selection subscription information, when performing SMF selection. Generally, the NRF can select the SMF based solely on local policies, or determine the SMF jointly with the "SMF selection information" stored in the UDM obtained from the UMD, or determine the SMF solely from the "SMF selection information" stored in the UDM obtained from the UMD, etc.

[0115] In this embodiment of the disclosure, if the NRF performs SMF discovery selection, the AMF selects the same SMF for the XRM service indication or XRM group ID related session through the NRF. At this time, the SMF registers with the NRF and provides a profile to the NRF. The SMF selection information of the NRF includes the XRM service indication and / or XRM group ID; and the NRF marks the SMF as available.

[0116] The following specific examples further illustrate the essence of the technical solutions in the embodiments of this disclosure.

[0117] In SMF selection, XRM service indication information or XRM group ID is added. When the SMF selection function in AMF or NRF performs SMF selection, the same SMF is selected for sessions that support XRM service capabilities or have the same XRM group ID. In this way, the subsequent PCF XRM policy issuance, execution and QoS updates can be triggered collaboratively on the SMF. At the same time, the selection of subsequent XRM data flow paths, such as the SMF UPF selection, is also more consistent. In this way, the existing QoS model mechanism is reused as much as possible, and the QoS coordination of XRM service-related data flows is guaranteed to the greatest extent.

[0118] Figure 5 This is a flowchart illustrating a method for selecting session management functions based on augmented reality services, according to an exemplary embodiment. Figure 5 As shown, the session management function selection method based on augmented reality services in this embodiment of the present disclosure includes the following processing flow:

[0119] Step 1: The UE sends a PDU session establishment request to the Access and Mobility Management Function (AMF) through the Radio Access Network (RAN) or Access Network (AN).

[0120] The N1 SM container carries a session creation request. Optionally, the request message carries the XRM service / multimodal service capability, which can be included in the 5GSM Capability or PCO, informing the network that the UE supports the XRM service / multimodal service feature.

[0121] Step 2: The AMF selects the SMF based on its locally configured SMF selection function or via the NRF. The AMF provides the UE location to the NRF, which then provides a valid SMF instance within the corresponding service area. In addition to the SMF selection factors in existing technologies, the AMF also considers the XRM service indication or XRM group ID for SMF selection. For example, the same SMF may be selected for sessions related to the XRM service indication or XRM group ID.

[0122] The XRM service indication or XRM group ID can be stored in the UDM subscription context (e.g., in the SMF selection subscription information), configured in the AMF's local SMF selection policy, or stored in the NRF's SMF selection policy.

[0123] The AMF uses the XRM service indication or XRM group ID as input for SMF selection and performs SMF selection. Specifically, if the AMF performs SMF discovery selection, the SMF selection function in the AMF selects the same SMF for the session related to the XRM service indication or XRM group ID. If the NRF performs SMF discovery selection, the AMF selects the same SMF for the session related to the XRM service indication or XRM group ID through the NRF.

[0124] If the session associated with the XRM service indication or XRM group ID does not have an SMF, then one of the SMFs will be selected according to the SMF selection strategy.

[0125] If the XRM service indication or XRM group ID related session has already selected an SMF, then select the same SMF;

[0126] If the XRM service indication or XRM group ID related session has already selected an SMF, but the SMF cannot meet the XRM service QoS requirements, then a suitable new SMF is selected and an SMF relocation is initiated to migrate the relevant old SMF PDU session to the new SMF.

[0127] If the NRF performs the SMF discovery selection, the SMF registering with the NRF provides its profile to the NRF. The NRF's SMF selection information includes the XRM service indication or XRM group ID; the NRF marks SMF available.

[0128] Step 3, optionally, if the UE request message carries XRM service / multimodal service capabilities, the AMF stores them in the UE context. A Create SM Context Request is sent to the SMF selected in Step 2, carrying the N1 SM container from Step 1, including the 5GSM Core NetworkCapability, including XRM service / multimodal service capabilities.

[0129] Step 4, optionally, if the XRM service / multimodal service capability was carried in Step 1, then the SMF checks the subscription data, for example, confirming whether the request complies with the user's subscription and local policies, and confirming whether the network supports the XRM service / multimodal service. If it does not support it, then the session creation for the XRM service / multimodal service is rejected, or the session creation is accepted based on local policies but the XRM service / multimodal service is not supported.

[0130] Step 5: The SMF sends a Create SM Context Response Message to the AMF. Specifically, based on the SMF's decision, it returns a Create SM Context Response Message or updates the response message. If session creation is rejected, it carries the corresponding rejection reason value. Optionally, if XRM service / multimodal service is rejected, it carries the corresponding reason value, indicating that the 5GC does not support XRM service / multimodal service.

[0131] Step 6: The core network authenticates the PDU session.

[0132] Step 7 (including steps 7a and 7b): If the PDU session uses dynamic PCC, the SMF performs PCF selection; otherwise, the SMF executes local policies. The PDU session requests support for XRM / multimodal services. Based on the subscription and application information provided by the AF, the SMF and PCF generate / activate corresponding XRM rules / multimodal data rules, or generate / activate enhanced data flow PCC rules to support XRM and multimodal sessions. As an example, this could involve associating XRM service data flows, matching XRM and multimodal service QoS, including GFBR, PDB, MDBV matching for XRM and multimodal service data flows.

[0133] Step 8: SM selects the User plane Function (UPF).

[0134] Step 9: Perform SMF-initiated SM PolicyAssociation Modification.

[0135] Step 10 (including steps 10a and 10b): SMF sends an N4 Session Establishment / Modification Request to PCF; PCF sends an N4 Session Establishment / Modification Response to SMF.

[0136] Step 11: The SMF returns an N1N2 message to the AMF, carrying a PDU session creation acceptance in the N1 SM container; the Accept carries relevant QoS parameters supporting XRM services / multimodal data services; optionally, it carries corresponding XRM rules / multimodal data rules, or QoS rules supporting XRM and multimodal data, for the UE to perform association of XRM service data streams and perform QoS matching of XRM and multimodal data streams.

[0137] Step 12, AMF sends a NAS message to (R)AN, carrying the PDU session ID and session acceptance message.

[0138] Step 13: The RAN forwards the NAS message from step 12 to the UE for the UE to execute.

[0139] Step 14: The RAN sends an N2 PDU session response message to the AMF. It also sends FirstUplink Data to the UPF.

[0140] Step 15: AMF sends an Nsmf_PDUSession_UpdateSMContext Request to SMF.

[0141] Step 16 (including steps 16a, 16b, and 16c): AMF sends an N4 Session Establishment / Modification Request to UPF; UPF sends an N4 Session Establishment / Modification Response to AMF.

[0142] AMF initiates a registration with UDM.

[0143] Step 17: SMF sends Nsmf_PDUSession_UpdateSMContext Response to AMF.

[0144] Step 18: SMF sends Nsmf_PDUSession_SMContextStatusNotify to AMF.

[0145] Step 19: SMF configures the IPv6 address for the UE.

[0146] Step 20: UPF initiates SMF initial SM policy association modification.

[0147] Step 21: Unsubscribe between SMF and UDP.

[0148] Figure 6 This is a schematic diagram illustrating the composition of a session management function selection device based on augmented reality services, according to an exemplary embodiment. Figure 6 As shown, the session management function selection device based on augmented reality services in this embodiment of the present disclosure is applied to a first network element, and the device includes:

[0149] The execution unit 60 is configured to perform SMF selection, wherein the execution of SMF selection includes selecting an SMF based on XRM service indication information or XRM group identifier ID.

[0150] In some exemplary embodiments, the first network element includes at least one of the following:

[0151] AMF;

[0152] NRF.

[0153] In some exemplary embodiments, when the first network element is an AMF, in addition to the aforementioned session management function selection device based on augmented reality services, the device further includes:

[0154] First selection unit ( Figure 6 (Not shown in the image), when configured to select an SMF in the AMF, the same SMF is selected for sessions that support XRM service capabilities or have the same XRM group identifier ID.

[0155] In some exemplary embodiments, based on the aforementioned session management function selection device for augmented reality services, the device further includes:

[0156] Set unit ( Figure 6 (Not shown in the image), the configuration adds the following information to the SMF selection subscription information in the UDM: select the same SMF for multiple sessions with XRM service indication and / or with the same XRM group ID.

[0157] In some exemplary embodiments, when the first network element is an AMF, the execution unit is further configured as follows:

[0158] In the AMF's local configuration information or the SMF subscription information in the UDM, the XRM service instruction and / or XRM group ID are used as inputs for SMF selection.

[0159] In some exemplary embodiments, based on the aforementioned session management function selection device for augmented reality services, the device further includes:

[0160] Second selection unit ( Figure 6 (Not shown in the image), configured to select the same SMF for sessions associated with XRM service indications or XRM group IDs.

[0161] In some exemplary embodiments, the first selection unit is further configured to:

[0162] Select the same SMF for multiple sessions with the same DNN and / or the same S-NSSAI and / or XRM group ID.

[0163] In some exemplary embodiments, the XRM group ID may be a reused existing network intranet group ID.

[0164] In some exemplary embodiments, the second selection unit is further configured to:

[0165] If the session associated with the XRM service instruction or XRM group ID does not select SMF, then select SMF.

[0166] In some exemplary embodiments, the second selection unit is further configured to: if the session related to the XRM service indication or XRM group ID has already selected an SMF, then select the same SMF for the current related session.

[0167] In some exemplary embodiments, the second selection unit is further configured to: if an XRM service indication or XRM group ID related session has selected an SMF and the selected SMF cannot meet the XRM service quality of service (QoS) requirements, then a new SMF is selected and an SMF reselection is initiated; if there are migrateable PDU sessions in the old SMF, the relevant old SMF PDU sessions are migrated to the new SMF.

[0168] In some exemplary embodiments, based on the aforementioned session management function selection device for augmented reality services, the device further includes:

[0169] Third selection unit ( Figure 6 (Not shown in the image), when the NRF performs SMF discovery selection, it is configured to select the same SMF for XRM service indication or XRM group ID related sessions via the NRF.

[0170] In some exemplary embodiments, when the first network element is an NRF, the SMF registers with the NRF and obtains a profile. The SMF selection information of the NRF includes an XRM service indication and / or an XRM group ID.

[0171] NRF-tagged SMFs are available.

[0172] In an exemplary embodiment, the execution unit 60, setting unit, first selection unit, second selection unit, third selection unit, etc., may be implemented by one or more central processing units (CPUs), graphics processing units (GPUs), baseband processors (BPs), application-specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components. They may also be implemented in conjunction with one or more radio frequency (RF) antennas to perform the steps of the session management function selection method based on augmented reality services in the foregoing embodiments.

[0173] In this embodiment of the disclosure, Figure 6 The specific manner in which each unit in the illustrated device performs its operations has been described in detail in the embodiments relating to the method, and will not be elaborated upon here.

[0174] Figure 7 This is a block diagram illustrating a user equipment 8000 according to an exemplary embodiment. For example, the user equipment 8000 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0175] Reference Figure 7 User equipment 8000 may include one or more of the following components: processing component 8002, memory 8004, power supply component 8006, multimedia component 8008, audio component 8010, input / output (I / O) interface 8012, sensor component 8014, and communication component 8016.

[0176] Processing component 8002 typically controls the overall operation of user equipment 8000, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 8002 may include one or more processors 8020 to execute instructions to complete all or part of the steps of the aforementioned method for selecting session management functions based on augmented reality services. Furthermore, processing component 8002 may include one or more modules to facilitate interaction between processing component 8002 and other components. For example, processing component 8002 may include a multimedia module to facilitate interaction between multimedia component 8008 and processing component 8002.

[0177] Memory 8004 is configured to store various types of data to support the operation of user equipment 8000. Examples of this data include instructions for any application or method operating on user equipment 8000, contact data, phonebook data, messages, pictures, videos, etc. Memory 8004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0178] The power supply component 8006 provides power to various components of the user equipment 8000. The power supply component 8006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the user equipment 8000.

[0179] Multimedia component 8008 includes a screen that provides an output interface between user equipment 8000 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 8008 includes a front-facing camera and / or a rear-facing camera. When user equipment 8000 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0180] Audio component 8010 is configured to output and / or input audio signals. For example, audio component 8010 includes a microphone (MIC) configured to receive external audio signals when user equipment 8000 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 8004 or transmitted via communication component 8016. In some embodiments, audio component 8010 also includes a speaker for outputting audio signals.

[0181] I / O interface 8012 provides an interface between processing component 8002 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0182] Sensor assembly 8014 includes one or more sensors for providing status assessments of various aspects of user equipment 8000. For example, sensor assembly 8014 may detect the on / off state of user equipment 8000, the relative positioning of components such as the display and keypad of user equipment 8000, changes in position of user equipment 8000 or one of its components, the presence or absence of user contact with user equipment 8000, orientation or acceleration / deceleration of user equipment 8000, and temperature changes of user equipment 8000. Sensor assembly 8014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 8014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 8014 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0183] Communication component 8016 is configured to facilitate wired or wireless communication between user equipment 8000 and other devices. User equipment 8000 can access wireless networks based on communication standards, such as Wi-Fi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 8016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 8016 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0184] In an exemplary embodiment, the user equipment 8000 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the steps of the above-described session management function selection method based on augmented reality services.

[0185] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 8004 including instructions, which can be executed by a processor 8020 of a user equipment 8000 to complete the steps of the session management function selection method based on augmented reality services described above. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0186] This disclosure also describes a storage medium storing an executable program, which is executed by a processor to perform the steps of the session management function selection method based on augmented reality services described in the foregoing embodiments.

[0187] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the invention that follow the general principles of the embodiments of the invention and include common knowledge or customary techniques in the art not disclosed in this disclosure. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the invention are indicated by the following claims.

[0188] It should be understood that the embodiments of the present invention are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of the embodiments of the present invention is limited only by the appended claims.

Claims

1. A method for selecting session management functions based on augmented reality services, applied to a first network element, the method comprising: The SMF is selected based on the augmented reality service XRM service indication information or XRM group identifier ID; wherein, the XRM service indication information or XRM group identifier ID is stored in the SMF selection subscription information in the unified data management function UDM, or the XRM service indication information or XRM group identifier ID is stored in the access and mobility management function AMF local configuration information. The selection of SMF based on XRM service indication information or XRM group identifier ID includes: Select the same SMF for sessions with XRM service indications or the same XRM group identifier ID, so that XRM policy delivery, execution and QoS updates are triggered collaboratively on the SMF; The method further includes: if an XRM service indication or XRM group ID related session has selected an SMF, and the selected SMF cannot meet the QoS requirements of the XRM service, then a new SMF is selected; if there is a migrateable PDU session in the selected SMF, then the PDU session is migrated to the new SMF.

2. The method according to claim 1, wherein, The method further includes: For multiple sessions with the same data network name DNN and / or the same single network slice, select the same SMF for auxiliary information S-NSSAI and / or XRM group ID.

3. The method according to claim 1, wherein, The XRM group ID can be reused from existing network group IDs.

4. The method according to claim 1, wherein, The method further includes selecting SMF if the session associated with the XRM service instruction or XRM group ID does not select SMF.

5. The method according to claim 1, wherein, The method further includes: if the session related to the XRM service instruction or XRM group ID has already selected an SMF, then select the same SMF for the current related session.

6. The method according to any one of claims 1 to 5, wherein, The first network element is the Access and Mobility Management Function (AMF), and the method further includes: AMF provides the NRF with the location of the User Equipment (UE); AMF receives valid SMF instances within the service area corresponding to the UE location provided by NRF; AMF selects the same SMF for XRM service indication or XRM group ID related sessions through a valid SMF instance provided by NRF.

7. The method according to any one of claims 1 to 5, wherein, The first network element is a Network Storage Function (NRF), and the method further includes: Register the SMF with the NRF and obtain the profile configuration file. The SMF selection information in the NRF includes the XRM service instruction and / or the XRM group ID. NRF-tagged SMFs are available.

8. The method according to claim 1, wherein, The first network element is an AMF, and the method further includes: Receive a Protocol Data Unit (PDU) session establishment request containing XRM service capability information sent by the UE; Send a Session Management SM Context Establishment Request containing XRM service capability information to the selected SMF. The SM Context Establishment Request is used by the SMF to determine whether to establish a PDU session for the XRM service.

9. The method according to claim 8, wherein, When the PDU session supports XRM services, the SMF and Policy Control Function (PCF) are used to generate or activate data flow policies and billing control (PCC) rules that support XRM services based on the subscription information and application information provided by the Application Function (AF).

10. A session management function selection device based on augmented reality services, applied to a first network element, the device comprising: The execution unit is configured to select an SMF based on XRM service indication information or XRM group identifier ID; wherein the XRM service indication information or XRM group identifier ID is stored in the SMF selection subscription information in the unified data management function UDM, or the XRM service indication information or XRM group identifier ID is stored in the local configuration information of the access and mobility management function AMF. The selection of SMF based on XRM service indication information or XRM group identifier ID includes: Select the same SMF for sessions with XRM service indications or the same XRM group identifier ID, so that XRM policy delivery, execution and QoS updates are triggered collaboratively on the SMF; The device is also configured to: if an XRM service indication or XRM group ID related session has selected an SMF, and the selected SMF cannot meet the XRM service quality of service (QoS) requirements, then reselect an SMF; if there is a migrateable PDU session in the selected SMF, then migrate the PDU session to the new SMF.

11. A storage medium having an executable program stored thereon, wherein the executable program, when executed by a processor, implements the steps of the session management function selection method based on augmented reality services as described in any one of claims 1 to 9.

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