A method, device and storage medium for policy control of an extended reality media service

Abstract

The present disclosure provides a method, device, equipment and storage medium for policy control of extended reality media service. The method is performed by a PCF, comprising: receiving a session request from an application function (AF), wherein the session request comprises relationship information between data streams in an extended reality media service group and / or an associated processing indication; determining a policy control rule related to the data streams in the extended reality media service group based on the relationship information and / or the associated processing indication; wherein the relationship information comprises at least one of the following: dependency information, priority information, and the associated processing indication is used to indicate that the data streams in the extended reality media service group adopt associated processing. By using the method, the relationships between the data streams can be effectively identified and utilized, which is helpful for the transmission and control of the network and the service, and also helps to guarantee the service and the user experience.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a strategy control method, apparatus, device, and storage medium for extended reality media services. Background Technology

[0002] Mobile media services, cloud AR / VR and other XR services, 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 device or different devices (including sensors) for the same service / application, and this data may be output to one or more destination device terminals.

[0003] XRM services require the 5GS system to comprehensively consider the Quality of Service (QoS) characteristics of the relevant data streams. For example, for Guaranteed Bit Rate (GBR) data streams with strict latency requirements, it is necessary to consider whether parameters such as Guaranteed Flow Bit Rate (GFBR), Packet Delay Budget (PDB), and Default Maximum Data Burst Volume (MDBV) can be simultaneously met and consistently maintained. When multiple XRM data streams from a single UE or multiple UEs are involved, it is necessary to consider the consistency of QoS authorization and execution between them. Summary of the Invention

[0004] In view of this, the present disclosure provides a strategy control method, apparatus, device and storage medium for extended real-world media services.

[0005] According to a first aspect of the embodiments of this disclosure, a policy control method for extended reality media services is provided, executed by a policy control function (PCF), comprising:

[0006] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0007] Based on the relationship information and / or the association processing instructions, determine the policy control rules related to the data stream in the extended reality media service group;

[0008] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0009] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0010] Generate or update policy control and billing PCC rules related to data streams in the Extended Reality Media Service Group.

[0011] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0012] Store and update the configuration files for the Extended Reality Media Services group.

[0013] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0014] In response to an extended reality media service corresponding to a single user device, PCC rules related to data streams in the extended reality media service group are generated or updated, and QoS authorization is determined.

[0015] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0016] In response to the fact that an extended reality media service corresponds to multiple user devices, PCC rules related to data streams in the extended reality media service group are generated or updated, and QoS authorization is determined.

[0017] In some possible implementations, the method further includes:

[0018] Send policy authorization notifications to other PCFs;

[0019] The other PCFs are associated with the data streams in the Extended Reality Media Service Group.

[0020] In some possible implementations, the policy authorization notification includes the relationship information and / or the association processing instruction.

[0021] In some possible implementations, receiving a session request from the AF includes one of the following:

[0022] The session request is received directly from the AF;

[0023] The session request is received via the Network Open Function (NEF).

[0024] The session request is received via the Time-Sensitive Communication Time Synchronization Function (TSCTSF); and

[0025] The session request is received through the NEF and the TSCTSF.

[0026] In some possible implementations, the method further includes:

[0027] Send a policy control update notification to the Service Management Function (SMF) to update the Protocol Data Unit (PDU) session of the SMF.

[0028] In some possible implementations, the update PDU session includes updating the PCC rules and QoS policies associated with the session request.

[0029] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0030] Based on the relationship information, perform one of the following:

[0031] Perform QoS authorization or update for a specific data stream;

[0032] Perform QoS authorization or update for all data streams in the QoS data stream; and

[0033] Perform QoS authorization or update for all data streams in a Protocol Data Unit (PDU) session.

[0034] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0035] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the first priority level, the failure of authorization for a data stream with the second priority level is triggered, or the current session update for a data stream with the second priority level is triggered.

[0036] The first priority level is higher than the second priority level.

[0037] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0038] In response to the dependency information including multiple dependency levels, and one or more data streams in the data stream set with the first dependency level failing to grant authorization, the authorization of other data streams in the data stream set with the first dependency level fails, or the current session of other data streams in the data stream set with the first dependency level is updated.

[0039] The data streams in the set of data streams with the first dependency level are mutually dependent.

[0040] In some possible implementations, the current session update includes:

[0041] Current PDU session updated.

[0042] In some possible implementations, the current session update further includes:

[0043] QoS authorization revocation and / or AF session release.

[0044] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0045] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the second priority level, a current session update is triggered for the data stream with the first priority level.

[0046] The first priority level is higher than the second priority level.

[0047] In some possible implementations, triggering a current session update of the data stream with a first priority level includes:

[0048] PDU session update.

[0049] In some possible implementations, triggering the current session update of the data stream with a first priority level further includes at least one of the following:

[0050] PCC rule update;

[0051] QoS degradation; and

[0052] AF session update.

[0053] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0054] In response to the session request including the association processing instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy and the association processing instruction, at least one of the following operations for the data stream in the Extended Reality Media Service Group is triggered: PCC rule update, QoS authorization update, and AF session release.

[0055] In some possible implementations, determining the policy control rules related to the data streams in the extended reality media service group includes:

[0056] Based on the association processing instruction, perform one of the following:

[0057] In response to the associated processing instruction being a simultaneous execution instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, the authorization of other data streams in the Extended Reality Media Service Group fails, or the current session update of other data streams in the Extended Reality Media Service Group is triggered.

[0058] In response to the association processing indication being a dependency-level priority processing indication, and one or more data streams in the first dependency-level data stream set failing to grant authorization, the authorization of other data streams in the first dependency-level data stream set fails, or the current session of other data streams in the first dependency-level data stream set is updated, wherein the data streams in the first dependency-level data stream set are mutually dependent.

[0059] In response to the associated processing indication being an operator policy or a default processing indication, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy or PCF configuration policy, the corresponding data stream in the Extended Reality Media Service Group is triggered to fail to be authorized, or the current session of the corresponding data stream in the Extended Reality Media Service Group is triggered to be updated.

[0060] In response to the associated processing indication including multiple processing indications and the priorities corresponding to the multiple processing indications, and at least one data stream in the extended reality media service group failing to be authorized, based on the multiple processing indications and the corresponding priorities, the authorization failure of the corresponding data stream in the extended reality media service group is triggered, or the current session update of the corresponding data stream in the extended reality media service group is triggered.

[0061] According to a second aspect of the present disclosure, a strategy control method for extended reality media services is provided, executed by an application function (AF), comprising:

[0062] Send a session request to the Policy Control Function (PCF), the session request including information on the relationships between data streams in the Extended Reality Media Services Group and / or instructions for associated processing;

[0063] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0064] In some possible implementations, sending a session request to the PCF includes one of the following:

[0065] The session request is sent directly to the PCF;

[0066] The session request is sent to the PCF via the Network Open Function (NEF);

[0067] The session request is sent to the PCF via the Time-Sensitive Communication Time Synchronization Function (TSCTSF); and

[0068] The session request is sent to the PCF via the NEF and the TSCTSF.

[0069] In some possible implementations, the method further includes:

[0070] Receive a response message for the session request, the response message including the authorization result of the data stream in the Extended Reality Media Service Group.

[0071] According to a third aspect of the present disclosure, a strategy control device for extended real-world media services is provided, comprising:

[0072] The transceiver module is configured to receive session requests from application function AF, the session requests including information on the relationships between data streams in the extended reality media service group and / or instructions for associated processing.

[0073] The processing module is configured to determine policy control rules related to the data stream in the extended reality media service group based on the relationship information and / or the associated processing instructions;

[0074] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0075] According to a fourth aspect of the present disclosure, a strategy control device for extended real-world media services is provided, comprising:

[0076] The transceiver module is configured to send a session request to the policy control function (PCF), the session request including information on the relationship between data streams in the Extended Reality Media Service Group and / or instructions for associated processing.

[0077] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0078] According to a fifth aspect of the present disclosure, a communication device is provided, including a processor and a memory, wherein...

[0079] The memory is used to store computer programs;

[0080] The processor is used to execute the computer program to implement the above-described strategy control method.

[0081] According to a sixth aspect of the present disclosure, a communication device is provided, including a processor and a memory, wherein...

[0082] The memory is used to store computer programs;

[0083] The processor is used to execute the computer program to implement the above-described strategy control method.

[0084] According to a seventh aspect of the present disclosure, a computer-readable storage medium is provided, wherein instructions are stored therein, which, when invoked and executed on a computer, cause the computer to perform the above-described strategy control method.

[0085] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0086] PCF receives relationship information and / or associated processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or associated processing instructions. This effectively identifies and utilizes these relationships between data streams, which helps with network and service transmission and control, and also contributes to service assurance and user experience.

[0087] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0088] The accompanying drawings, which are included to provide a further understanding of the embodiments of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and, together with their descriptions, serve to explain the embodiments of this disclosure and do not constitute an improper limitation of the embodiments of this disclosure. In the drawings:

[0089] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0090] Figure 1 This is a schematic diagram illustrating a wireless communication system according to an exemplary embodiment;

[0091] Figure 2 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0092] Figure 3 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0093] Figure 4This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0094] Figure 5 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0095] Figure 6 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0096] Figure 7 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0097] Figure 8 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0098] Figure 9 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0099] Figure 10 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0100] Figure 11 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment;

[0101] Figure 12 This is a block diagram illustrating a strategy control device according to an exemplary embodiment;

[0102] Figure 13 This is a block diagram illustrating a strategy control device according to an exemplary embodiment;

[0103] Figure 14 This is a structural diagram of a strategy control device according to an exemplary embodiment. Detailed Implementation

[0104] The embodiments of this disclosure will now be further described in conjunction with the accompanying drawings and specific implementation details.

[0105] 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 this disclosure as detailed in the appended claims.

[0106] It should be noted that one embodiment of this disclosure may include multiple steps; for ease of description, these steps are numbered; however, these numbers are not a limitation on the execution time slots or execution order between the steps; these steps can be implemented in any order, and this disclosure does not limit this.

[0107] In the description of this application, the terms "first," "second," and "third" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance or order. "Multiple" refers to two or more.

[0108] "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0109] The data streams in multimodal data often have a certain degree of correlation, or even a strong correlation, such as the synchronization of audio and video streams, or the synchronization of tactile and visual data. The data streams themselves, the relationships between the 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 helpful for network and service transmission and control, as well as for service assurance and user experience.

[0110] Multiple XRM data streams have varying degrees of dependency relationships. For example, insufficient QoS guarantees or transmission failures in some data streams may have a localized impact on the entire XRM service, affecting user experience or some service functions; however, insufficient QoS guarantees or transmission failures in other data streams may directly lead to the failure of the entire XRM service. Identifying and coordinating data streams with different dependencies or priorities is a crucial and indispensable requirement in practical XRM services. However, current 5GS systems lack a robust mechanism to support these requirements for XRM services and multimodal services across multiple UEs, and there are no corresponding technical solutions to support the identification and coordination of dependency or priority relationships between multiple XRM data streams within a single UE, or between XRM data streams from multiple UEs.

[0111] like Figure 1 As shown, the data stream authorization method provided in this disclosure embodiment can be applied to a wireless communication system 100, which may include, but is not limited to, a network device 101 and a user equipment 102. The user equipment 102 is configured to support carrier aggregation, and the user equipment 102 can be connected to multiple carrier units of the network device 101, including a primary carrier unit and one or more secondary carrier units.

[0112] It should be understood that the wireless communication system 100 described above is applicable to both low-frequency and high-frequency scenarios. Application scenarios for the wireless communication system 100 include, but are not limited to, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, cloud radio access network (CRAN) systems, future 5th-generation (5G) systems, new radio (NR) communication systems, or future evolved public land mobile network (PLMN) systems.

[0113] The user equipment 102 shown above can be user equipment (UE), terminal, access terminal, terminal unit, terminal station, mobile station (MS), remote station, remote terminal, mobile terminal, wireless communication equipment, terminal agent, or user equipment, etc. This user equipment 102 may have wireless transceiver capabilities, enabling it to communicate (e.g., wirelessly) with one or more network devices 101 of one or more communication systems, and to receive network services provided by the network devices 101, including but not limited to the base station shown in the figure.

[0114] User equipment 102 may be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, user equipment in a future 5G network or user equipment in a future evolved PLMN network, etc.

[0115] Network device 101 can be an access network device (or access point). Access network device refers to equipment that provides network access functionality, such as a radio access network (RAN) base station. Specifically, network device may include base station (BS) equipment, or base station equipment and radio resource management equipment used to control the base station equipment. This network device may also include relay stations (relay equipment), access points, and base stations in future 5G networks, base stations in future evolved PLMN networks, or NR base stations. Network device can be a wearable device or an in-vehicle device. Network device can also be a communication chip with a communication module.

[0116] The core network equipment in the wireless communication system 100 includes, for example, Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Network Exposure Function (NEF), Network Repository Function (NRF), or Policy and Charging Function (PCF).

[0117] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 2 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 2 As shown, the method includes:

[0118] Step 201: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing;

[0119] Step 202: Based on the relationship information and / or the association processing instruction, determine the policy control rules related to the data stream in the extended reality media service group;

[0120] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0121] The multimedia data stream disclosed herein may be an XRM data stream, i.e., an extended reality multimedia data stream.

[0122] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. The PCF then determines policy control rules related to these data streams based on this relationship information and / or association processing instructions.

[0123] As mentioned above, there are varying degrees of dependency and / or priority relationships among multiple XRM data streams. Therefore, when determining the policy control rules for these data streams, it is necessary to consider their interrelationships and possible associated processing instructions.

[0124] In one implementation, the AF is a trusted AF, and the PCF receives session requests directly from the AF. In another implementation, the AF is a trusted AF that sends session requests to the Time-Sensitive Communication Time Synchronization Function (TSCTSF), and then the PCF receives session requests from the TSCTSF.

[0125] In one implementation, the AF (Automatic AF) can be either a trusted or untrusted AF. The AF sends the session request to the Network Open Function (NEF), and then the PCF (Programmable Component Function) receives the session request from the NEF. In another implementation, the AF sends the session request to the NEF, which then sends it to the TSCTSF (Traffic Switched Functions SF), and the PCF receives the session request from the TSCTSF. The NEF (Network Open Function) determines whether to send the session request directly to the PCF or via the TSCTSF based on parameters provided by the AF.

[0126] In one implementation, the NEF receives the aforementioned session request by receiving the Nnef_AFsessionWithQoS_Createrequest sent by the AF. The session request includes dependency information and / or priority information, as well as relevant information about the XRM service group, such as the group ID, UE address / UE identifier, AF identifier, application ID, flow description(s), data network name (DNN), single network slice selection assisted information (S-NSSAI), QoS parameters, and other corresponding information. Here, the group ID can be used to identify all data flows or all UEs within the XRM service group.

[0127] In one implementation, when the NEF receives a session request from the AF and authorizes the data stream, it performs related mapping operations, such as mapping the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, mapping the external application to the core network (CN) application identifier, mapping the external UE identifier based on the subscription information of Unified Data Management (UDM) to the UE identifier within the CN (such as the Subscriber Permanent Identifier (SUPI)), and mapping the external to the internal XRM service group identifier based on the UDM subscription information.

[0128] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0129] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 3 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 3 As shown, the method includes:

[0130] Step 301: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0131] Step 302: Based on the relationship information and / or the association processing instruction, generate or update the policy control and billing PCC rules related to the data stream in the extended reality media service group;

[0132] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0133] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. The PCF then determines PCC rules related to these data streams based on this relationship information and / or association processing instructions.

[0134] Multiple XRM data streams have varying degrees of dependency and / or priority relationships. Therefore, when determining the PCC rules for these data streams, it is necessary to consider their interrelationships and possible associated processing instructions.

[0135] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0136] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 4 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 4 As shown, the method includes:

[0137] Step 401: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0138] Step 402: Based on the relationship information and / or the association processing instructions, store and update the configuration file of the extended reality media service group;

[0139] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0140] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. The PCF then stores and updates the configuration file of the Extended Reality Media Service Group based on this relationship information and / or association processing instructions.

[0141] It should be noted that the PCF may also simultaneously determine the PCC rules associated with these data streams, as well as store and update the configuration files for the Extended Reality Media Services Group.

[0142] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0143] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 5 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 5 As shown, the method includes:

[0144] Step 501: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0145] Step 502: In response to the extended reality media service corresponding to a single user device, based on the relationship information and / or the association processing instruction, generate or update PCC rules related to the data stream in the extended reality media service group, and determine the quality of service (QoS) authorization;

[0146] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0147] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data flows within the Extended Reality Media Service Group (EPMMS). The relationship information may be dependency information regarding the dependencies between data flows and / or priority information regarding the priority relationships between data flows. The association processing instructions are used to instruct the application of association processing to the data flows within the EPMMS. Association processing may include, for example, synchronous processing of the data flows within the EPMMS, authorization based on the dependencies between data flows, authorization based on operator policies, etc. If the EPMMS corresponds to a single user equipment (i.e., the EPMMS corresponds to a PCF), then the PCF generates or updates PCC rules related to the data flows within the EPMMS based on this relationship information and / or association processing instructions, and determines QoS authorization.

[0148] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0149] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 6 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 6 As shown, the method includes:

[0150] Step 601: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0151] Step 602: In response to the fact that the extended reality media service corresponds to multiple user devices, based on the relationship information and / or the association processing instruction, generate or update PCC rules related to the data stream in the extended reality media service group, and determine QoS authorization;

[0152] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0153] In one implementation, the PCF receives a session request from the AF. This session request includes relationship information and / or association processing instructions regarding data flows within the Extended Reality Media Service Group (EPMMS). The relationship information may be dependency information regarding the dependencies between data flows and / or priority information regarding the priority relationships between data flows. The association processing instructions are used to instruct the application of association processing to the data flows within the EPMMS. Association processing may include, for example, synchronous processing of the data flows within the EPMMS, authorization based on the dependencies between data flows, authorization based on operator policies, etc. If the EPMMS corresponds to multiple user equipment (i.e., the EPMMS may correspond to multiple PCFs), then upon receiving the session request, a PCF generates or updates PCC rules related to the data flows within the EPMMS, based on the relationship information and / or association processing instructions carried in the session request, and determines QoS authorization.

[0154] In one implementation, after generating or updating PCC rules related to data streams in an Extended Reality Media Service Group, the PCF sends a policy authorization notification, such as Npcf_PolicyAuthorization_Notify, to other PCFs corresponding to the data streams in the Extended Reality Media Service Group to trigger the other PCFs to perform rule updates regarding the data streams.

[0155] In one embodiment, the policy authorization notification sent by the PCF to other PCFs includes the relationship information and / or the association processing instruction. This allows other PCFs to update the PCC rules for their respective data flows and determine the QoS authorization for those data flows based on the relationship information and / or the association processing instruction in the received policy authorization notification. Furthermore, the policy authorization notification also includes XRM service group information, such as Group ID and UE address, as well as relevant information about the PCF, such as PCF address, PCF instance ID, and PCF set ID. Upon receiving the policy authorization notification, the other PCF returns a response message, such as Npcf_PolicyAuthorization_Notifyresponse, to the PCF that sent the notification.

[0156] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0157] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 7 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 7 As shown, the method includes:

[0158] Step 701: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing;

[0159] Step 702: Based on the relationship information and / or the association processing instruction, determine the policy control rules related to the data stream in the extended reality media service group;

[0160] Step 703: Send a policy control update notification to the Service Management Function (SMF) to update the Protocol Data Unit (PDU) session of the SMF;

[0161] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0162] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of data streams within the Extended Reality Media Service Group, authorization based on dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information and / or association processing instructions, the PCF determines policy control rules related to these data streams and then sends a policy control update notification, such as Npcf_SMPolicyControl_UpdateNotify, to the Service Management Function (SMF) to update the SMF's Protocol Data Unit (PDU) session.

[0163] In one implementation, the aforementioned PDU update session includes updating the PCC rules and QoS policies associated with the session request.

[0164] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0165] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). Figure 8 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 8 As shown, the method includes:

[0166] Step 801: Receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0167] Step 802, based on the relationship information, perform one of the following:

[0168] Perform QoS authorization or update for a specific data stream;

[0169] Perform QoS authorization or update for all data streams in the QoS data stream; and

[0170] Perform QoS authorization or update for all data streams in a Protocol Data Unit (PDU) session;

[0171] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0172] In one embodiment, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data flows within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data flows and / or priority information regarding the priority relationships between data flows. The association processing instructions are used to instruct the data flows within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of data flows within the Extended Reality Media Service Group, authorization based on dependencies between data flows, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data flows, such as performing QoS authorization or updates at different granularities: performing QoS authorization or updates for specific data flows; performing QoS authorization or updates for all data flows in a QoS data flow; and performing QoS authorization or updates for all data flows in a Protocol Data Unit (PDU) session.

[0173] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0174] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). The method includes:

[0175] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0176] Based on the relationship information and / or the association processing instructions, determine the policy control rules related to the data streams in the extended reality media service group, including:

[0177] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the first priority level, the failure of authorization for a data stream with the second priority level is triggered, or the current session update for a data stream with the second priority level is triggered.

[0178] The relationship information includes at least one of the following: dependency information and priority information. The association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association, and the first priority level is higher than the second priority level.

[0179] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data streams.

[0180] In one implementation, the PCF determines the policy control rules as follows: In scenarios where the priority information of a data stream includes multiple priority levels, if the authorization of a data stream with the first priority level (i.e., high priority) fails, then the authorization of a data stream with the second priority level (i.e., low priority) in a new session request fails, or the current session of the data stream with the second priority level in the current session request fails. That is, the authorization failure of a high-priority data stream will trigger the authorization failure or current session update of a low-priority data stream in subsequent session requests. This indicates that low-priority data streams are affected by the authorization failure of high-priority data streams.

[0181] In one implementation, the current session update of the data stream with the second priority level includes the current PDU session update of the data stream with the second priority level.

[0182] In one embodiment, the current session update of a data stream with a second priority level includes a current PDU session update and QoS authorization revocation for the data stream with the second priority level. In another embodiment, the current session update of a data stream with a second priority level includes a current PDU session update and AF session release for the data stream with the second priority level. In yet another embodiment, the current session update of a data stream with a second priority level includes a current PDU session update, QoS authorization revocation, and AF session release for the data stream with the second priority level.

[0183] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0184] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). The method includes:

[0185] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0186] Based on the relationship information and / or the association processing instructions, determine the policy control rules related to the data streams in the extended reality media service group, including:

[0187] In response to the dependency information including multiple dependency levels, and one or more data streams in the data stream set with the first dependency level failing to be authorized, the authorization of other data streams in the data stream set with the first dependency level fails, or the current session of other data streams in the data stream set with the first dependency level is updated.

[0188] The relationship information includes at least one of the following: dependency information and priority information. The association processing instruction is used to instruct the data streams in the extended reality media service group to adopt association processing. The data streams in the data stream set with the first dependency level are mutually dependent.

[0189] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data streams.

[0190] In one implementation, the PCF determines the policy control rules as follows: in a scenario where the data flow dependencies include multiple dependency levels, if a data flow with a first dependency level (i.e., a stronger dependency level) fails to grant authorization, then in a new session request, other data flows that have a strong dependency relationship with the data flow that failed to grant authorization will fail to grant authorization, or in the current session request, other data flows that have a strong dependency relationship with the data flow that failed to grant authorization will be updated in the current session request.

[0191] Here, data flows in the set of data flows with the first dependency level are mutually dependent, indicating a strong dependency relationship between them. That is, if multiple data flows have a strong dependency relationship, then if authorization fails in one of these data flows, it will trigger authorization failures in subsequent session requests or updates to the current session for the other data flows within that set. This shows that data flows with strong dependencies will affect each other's authorization. Data flows without dependencies or with weak dependencies, on the other hand, may not affect each other's authorization, or the likelihood of them affecting each other's authorization is low.

[0192] In one implementation, the current session update of the data stream with the second priority level includes the current PDU session update of the data stream with the second priority level.

[0193] In one embodiment, the current session update of a data stream with a second priority level includes a current PDU session update and QoS authorization revocation for the data stream with the second priority level. In another embodiment, the current session update of a data stream with a second priority level includes a current PDU session update and AF session release for the data stream with the second priority level. In yet another embodiment, the current session update of a data stream with a second priority level includes a current PDU session update, QoS authorization revocation, and AF session release for the data stream with the second priority level.

[0194] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0195] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). The method includes:

[0196] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0197] Based on the relationship information and / or the association processing instructions, determine the policy control rules related to the data streams in the extended reality media service group, including:

[0198] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the second priority level, a current session update is triggered for the data stream with the first priority level.

[0199] The relationship information includes at least one of the following: dependency information and priority information. The association processing instruction is used to instruct the data streams in the extended reality media service group to be processed in association, and the first priority level is higher than the second priority level.

[0200] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data streams.

[0201] In one implementation, the PCF determines the policy control rules as follows: in scenarios where the priority information of a data flow includes multiple priority levels, if the authorization of a data flow with a second priority level (i.e., a low priority level) fails, then the current session update of the data flow with a first priority level (i.e., a high priority level) is triggered. That is, the authorization failure of a low-priority data flow will trigger the current session update of the high-priority data flow. This indicates that high-priority data flows are affected by the authorization failure of low-priority data flows.

[0202] In one implementation, the current session update of the data stream with a first priority level includes the current PDU session update of the data stream with the first priority level.

[0203] In one embodiment, the current session update of the data stream with the first priority level includes, in addition to the current PDU session update of the data stream with the first priority level, at least one of the following: PCC rule update; QoS degradation; and AF session update.

[0204] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0205] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). The method includes:

[0206] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0207] Based on the relationship information and / or the association processing instructions, determine the policy control rules related to the data streams in the extended reality media service group, including:

[0208] In response to the session request including the association processing instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy and the association processing instruction, at least one of the following operations for the data stream in the Extended Reality Media Service Group is triggered: PCC rule update, QoS authorization update, and AF session release.

[0209] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0210] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data streams.

[0211] In one implementation, the PCF determines the policy control rules as follows: if at least one data flow in the Extended Reality Media Service Group fails to obtain authorization, based on the operator policy and associated processing instructions, it triggers the execution of at least one of the following operations for the data flow in the Extended Reality Media Service Group: PCC rule update, QoS authorization update, and AF session release.

[0212] In the above embodiments, the PCF determines policy control rules based on the associated processing instructions and operator policies. That is, in this embodiment, the PCF can determine policy control rules without referring to the relationship information between data streams.

[0213] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0214] This disclosure provides a policy control method for extended reality media services, which is executed by a policy control function (PCF). The method includes:

[0215] Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0216] Based on the relationship information and / or the association processing instruction, determine the policy control rules related to the data stream in the extended reality media service group, including executing one of the following based on the association processing instruction:

[0217] In response to the associated processing instruction being a simultaneous execution instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, the authorization of other data streams in the Extended Reality Media Service Group fails, or the current session update of other data streams in the Extended Reality Media Service Group is triggered.

[0218] In response to the association processing indication being a dependency-level priority processing indication, and one or more data streams in the first dependency-level data stream set failing to grant authorization, the authorization of other data streams in the first dependency-level data stream set fails, or the current session of other data streams in the first dependency-level data stream set is updated, wherein the data streams in the first dependency-level data stream set are mutually dependent.

[0219] In response to the associated processing indication being an operator policy or a default processing indication, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy or PCF configuration policy, the corresponding data stream in the Extended Reality Media Service Group is triggered to fail to be authorized, or the current session of the corresponding data stream in the Extended Reality Media Service Group is triggered to be updated.

[0220] In response to the associated processing indication including multiple processing indications and the priorities corresponding to the multiple processing indications, and at least one data stream in the extended reality media service group failing to be authorized, based on the multiple processing indications and the corresponding priorities, the authorization failure of the corresponding data stream in the extended reality media service group is triggered, or the current session update of the corresponding data stream in the extended reality media service group is triggered.

[0221] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0222] In one implementation, the PCF receives a session request from the AF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Based on this relationship information, including dependency information and priority information, the PCF determines policy control rules related to these data streams.

[0223] Here, PCF determines policy control rules based on information from relational processing instructions, such as priority relationships between data streams, dependencies between data streams, operator policies, and so on.

[0224] In one implementation, if the associated processing instruction received by the PCF is a simultaneous execution instruction, and at least one data stream in the Extended Reality Media Service Group fails to be authorized, then a new session request is triggered to trigger the authorization failure of other data streams in the Extended Reality Media Service Group, or the current session update of other data streams in the Extended Reality Media Service Group in the current session request is triggered.

[0225] In one embodiment, if the association processing instruction received by the PCF is a dependency-level priority processing instruction (i.e., processing is prioritized based on the dependencies between data streams), and one or more data streams in the first dependency-level data stream set fail to be authorized, a new session request is triggered to fail to authorize other data streams in the first dependency-level data stream set, or a current session request is triggered to update the current session with other data streams in the first dependency-level data stream set, wherein the data streams in the first dependency-level data stream set are mutually dependent.

[0226] In one implementation, if the associated processing instruction received by the PCF is an operator policy or a default processing instruction, and at least one data stream in the Extended Reality Media Service Group fails to be authorized, based on the operator policy or default configuration policy, such as the PCF configuration policy, the authorization failure of the corresponding data stream in the Extended Reality Media Service Group in the new session request is triggered, or the current session update of the corresponding data stream in the Extended Reality Media Service Group in the current session request is triggered.

[0227] In one embodiment, if the associated processing instruction received by the PCF includes multiple processing instructions and their corresponding priorities, and at least one data stream in the Extended Reality Media Service Group fails to obtain authorization, based on the multiple processing instructions and their corresponding priorities, a new session request is triggered to trigger an authorization failure for the corresponding data stream in the Extended Reality Media Service Group, or a current session update is triggered for the corresponding data stream in the current session request. For example, the associated processing instruction includes a simultaneous execution instruction and a dependency level priority processing instruction, where the dependency level priority processing instruction has a high priority and the simultaneous execution instruction has a low priority. Therefore, when a data stream fails to obtain authorization, the authorization of other data streams is determined primarily based on the dependency level. When there is no dependency relationship between the data streams in the Extended Reality Media Service Group, the authorization of other data streams is determined based on the simultaneous execution instruction.

[0228] In the above implementation, the PCF receives relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0229] This disclosure provides a strategy control method for extended reality media services, which is executed by application function (AF). Figure 9 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 9 As shown, the method includes:

[0230] Step 901: Send a session request to the Policy Control Function (PCF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0231] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0232] In one implementation, the AF sends a session request to the PCF, which includes relationship information and / or association processing instructions for data streams within the Extended Reality Media Service Group. The relationship information may be dependency information regarding the dependencies between data streams and / or priority information regarding the priority relationships between data streams. The association processing instructions are used to instruct the data streams within the Extended Reality Media Service Group to undergo association processing. Association processing may include, for example, synchronous processing of the data streams within the Extended Reality Media Service Group, authorization based on the dependencies between data streams, authorization based on operator policies, etc. Thus, the PCF can determine policy control rules related to these data streams based on the above information.

[0233] AF can send session requests to PCF in the following ways:

[0234] The session request is sent directly to the PCF;

[0235] The session request is sent to the PCF via the Network Open Function (NEF);

[0236] The session request is sent to the PCF via the Time-Sensitive Communication Time Synchronization Function (TSCTSF); and

[0237] The session request is sent to the PCF via the NEF and the TSCTSF.

[0238] In the above implementation, the AF sends a session request to the PCF. The PCF receives the relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines the policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0239] This disclosure provides a strategy control method for extended reality media services, which is executed by application function (AF). Figure 10 This is a flowchart illustrating a strategy control method for extended reality media services according to an exemplary embodiment, such as... Figure 10 As shown, the method includes:

[0240] Step 1001: Send a session request to the Policy Control Function (PCF), the session request including information on the relationship between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0241] Step 1002: Receive a response message for the session request, the response message including the authorization result of the data stream in the Extended Reality Media Service Group;

[0242] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0243] In one implementation, the AF sends a session request to the PCF, which includes information about the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing. Based on this information, the PCF can determine policy control rules related to these data streams. The AF then receives a response message for the session request.

[0244] For example, the AF sends the session request to the PCF via the NEF. For instance, the AF sends an Nnef_AFsessionWithQoS_Create request to the NEF, and the NEF sends an Npcf_PolicyAuthorization_Create request to the PCF. The AF then receives a response message from the NEF, such as an Nnef_AFsessionWithQoS_Create response, thus knowing whether its session request has been authorized.

[0245] In the above implementation, the AF sends a session request to the PCF. The PCF receives the relationship information and / or association processing instructions between data streams in the media service group from the session request, and determines the policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or association processing instructions. This effectively identifies and utilizes these relationships between data streams, which is beneficial for network and service transmission and control, and also contributes to service assurance and user experience.

[0246] This disclosure provides a strategy control method for extended reality media services, referring to... Figure 11 As shown, the method includes:

[0247] 1. The AF sends a session request to the NEF, which carries XRM service group information and the relationship between data flows within the service group. For example, the AF creates this session request by sending an Nnef_AFsessionWithQoS_Create request.

[0248] 2. NEF authorizes the data streams in the received session requests based on the relationship information between the data streams.

[0249] 3. The NEF sends a policy authorization request to the PCF, such as sending an Npcf_PolicyAuthorization_Createrequest, which includes information about the relationships between data streams in the Extended Reality Media Service Group and / or instructions for associated processing.

[0250] 4. PCF executes policy decisions based on the received relationship information and / or association processing instructions.

[0251] 5. PCF sends an Npcf_PolicyAuthorization_Create response message to NEF.

[0252] 6. NEF sends an Nnef_AFsessionWithQoS_Create response message to AF to notify AF whether its session request has been authorized.

[0253] 7. The PCF sends a policy control update notification to the SMF, such as Npcf_SMPolicyControl_UpdateNotify.

[0254] 8. SMF sends a response message to PCF, such as Npcf_SMPolicyControl_UpdateNotifyresponse.

[0255] 9. The SMF initiates a PDU session update procedure to request the network to provide the NG-RAN with updated policies and XRM service group information. The SMF sends a Namf_Communication_N1N2MessageTransfer message to the AMF, which includes the XRM service group information. The AMF sends an N2 message to the NG-RAN, which also includes the XRM service group information.

[0256] 10. In scenarios where an extended reality media service corresponds to multiple user devices, the extended reality media service may correspond to multiple PCFs. After executing a policy decision, one PCF sends Npcf_PolicyAuthorization_Notify to other PCFs associated with the extended reality media service group to trigger the other PCFs to execute data flow rule updates.

[0257] 11. Other PCFs acknowledge receipt of the notification from the aforementioned PCF and send an Npcf_PolicyAuthorization_Notify response to that PCF.

[0258] 12. After receiving Npcf_PolicyAuthorization_Notify, other PCFs execute policy decisions, update the rules for the corresponding data streams within the Extended Reality Media Service Group, and update the SMF's PDU session.

[0259] 13. Based on the PCC rules in the policy control update notification received from the PCF, the SMF determines the authorized QoS of the QoS flow and initiates a PDU session update process for network requests.

[0260] 14. Other PCFs send Npcf_PolicyAuthorization_Notify to NEF.

[0261] 15. NEF sends an Npcf_PolicyAuthorization_Notify response to other PCFs.

[0262] This disclosure provides a strategy control device for extended reality media services, referring to... Figure 12 As shown, it includes:

[0263] The transceiver module 1201 is configured to receive a session request from the application function AF, the session request including information on the relationship between data streams in the extended reality media service group and / or instructions for associated processing.

[0264] Processing module 1202 is configured to determine policy control rules related to the data stream in the extended reality media service group based on the relationship information and / or the associated processing instructions;

[0265] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0266] In some possible implementations, the processing module is further configured to:

[0267] Generate or update policy control and billing PCC rules related to data streams in the Extended Reality Media Service Group.

[0268] In some possible implementations, the processing module is further configured to:

[0269] Store and update the configuration files for the Extended Reality Media Services group.

[0270] In some possible implementations, the processing module is further configured to:

[0271] In response to an extended reality media service corresponding to a single user device, PCC rules related to data streams in the extended reality media service group are generated or updated, and QoS authorization is determined.

[0272] In some possible implementations, the processing module is further configured to:

[0273] In response to the fact that an extended reality media service corresponds to multiple user devices, PCC rules related to data streams in the extended reality media service group are generated or updated, and QoS authorization is determined.

[0274] In some possible implementations, the transceiver module is further configured to:

[0275] Send policy authorization notifications to other PCFs;

[0276] The other PCFs are associated with the data streams in the Extended Reality Media Service Group.

[0277] In some possible implementations, the policy authorization notification includes the relationship information and / or the association processing instruction.

[0278] In some possible implementations, receiving a session request from the AF includes one of the following:

[0279] The session request is received directly from the AF;

[0280] The session request is received via the Network Open Function (NEF).

[0281] The session request is received via the Time-Sensitive Communication Time Synchronization Function (TSCTSF); and

[0282] The session request is received through the NEF and the TSCTSF.

[0283] In some possible implementations, the transceiver module is further configured to:

[0284] Send a policy control update notification to the Service Management Function (SMF) to update the Protocol Data Unit (PDU) session of the SMF.

[0285] In some possible implementations, the update PDU session includes updating the PCC rules and QoS policies associated with the session request.

[0286] In some possible implementations, the processing module is further configured to:

[0287] Based on the relationship information, perform one of the following:

[0288] Perform QoS authorization or update for a specific data stream;

[0289] Perform QoS authorization or update for all data streams in the QoS data stream; and

[0290] Perform QoS authorization or update for all data streams in a Protocol Data Unit (PDU) session.

[0291] In some possible implementations, the processing module is further configured to:

[0292] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the first priority level, the failure of authorization for a data stream with the second priority level is triggered, or the current session update for a data stream with the second priority level is triggered.

[0293] The first priority level is higher than the second priority level.

[0294] In some possible implementations, the processing module is further configured to:

[0295] In response to the dependency information including multiple dependency levels, and one or more data streams in the data stream set with the first dependency level failing to be authorized, the authorization of other data streams in the data stream set with the first dependency level fails, or the current session of other data streams in the data stream set with the first dependency level is updated.

[0296] The data streams in the set of data streams with the first dependency level are mutually dependent.

[0297] In some possible implementations, the current session update includes:

[0298] Current PDU session updated.

[0299] In some possible implementations, the current session update further includes:

[0300] QoS authorization revocation and / or AF session release.

[0301] In some possible implementations, the processing module is further configured to:

[0302] In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the second priority level, a current session update is triggered for the data stream with the first priority level.

[0303] The first priority level is higher than the second priority level.

[0304] In some possible implementations, triggering a current session update of the data stream with a first priority level includes:

[0305] PDU session update.

[0306] In some possible implementations, triggering the current session update of the data stream with a first priority level further includes at least one of the following:

[0307] PCC rule update;

[0308] QoS degradation; and

[0309] AF session update.

[0310] In some possible implementations, the processing module is further configured to:

[0311] In response to the session request including the association processing instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy and the association processing instruction, at least one of the following operations for the data stream in the Extended Reality Media Service Group is triggered: PCC rule update, QoS authorization update, and AF session release.

[0312] In some possible implementations, the processing module is further configured to:

[0313] Based on the association processing instruction, perform one of the following:

[0314] In response to the associated processing instruction being a simultaneous execution instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, the authorization of other data streams in the Extended Reality Media Service Group fails, or the current session update of other data streams in the Extended Reality Media Service Group is triggered.

[0315] In response to the association processing indication being a dependency-level priority processing indication, and one or more data streams in the first dependency-level data stream set failing to grant authorization, the authorization of other data streams in the first dependency-level data stream set fails, or the current session of other data streams in the first dependency-level data stream set is updated, wherein the data streams in the first dependency-level data stream set are mutually dependent.

[0316] In response to the associated processing indication being an operator policy or a default processing indication, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy or PCF configuration policy, the corresponding data stream in the Extended Reality Media Service Group is triggered to fail to be authorized, or the current session of the corresponding data stream in the Extended Reality Media Service Group is triggered to be updated.

[0317] In response to the associated processing indication including multiple processing indications and the priorities corresponding to the multiple processing indications, and at least one data stream in the extended reality media service group failing to be authorized, based on the multiple processing indications and the corresponding priorities, the authorization failure of the corresponding data stream in the extended reality media service group is triggered, or the current session update of the corresponding data stream in the extended reality media service group is triggered.

[0318] This disclosure provides a strategy control device for extended reality media services, referring to... Figure 13 As shown, it includes:

[0319] Transceiver module 1301 is configured to send a session request to the policy control function PCF, the session request including information on the relationship between data streams in the Extended Reality Media Service Group and / or instructions for associated processing;

[0320] The relationship information includes at least one of the following: dependency information, priority information, and the association processing instruction is used to instruct the data stream in the extended reality media service group to be processed by association.

[0321] In some possible implementations, sending a session request to the PCF includes one of the following:

[0322] The session request is sent directly to the PCF;

[0323] The session request is sent to the PCF via the Network Open Function (NEF);

[0324] The session request is sent to the PCF via the Time-Sensitive Communication Time Synchronization Function (TSCTSF); and

[0325] The session request is sent to the PCF via the NEF and the TSCTSF.

[0326] In some possible implementations, the transceiver module is further configured to:

[0327] Receive a response message for the session request, the response message including the authorization result of the data stream in the Extended Reality Media Service Group.

[0328] This disclosure provides a communication device, including a processor and a memory, wherein,

[0329] The memory is used to store computer programs;

[0330] The processor is used to execute the computer program to implement the above-described strategy control method.

[0331] This disclosure provides a communication device, including a processor and a memory, wherein,

[0332] The memory is used to store computer programs;

[0333] The processor is used to execute the computer program to implement the above-described strategy control method.

[0334] This disclosure provides a computer-readable storage medium storing instructions that, when invoked and executed on a computer, cause the computer to perform the aforementioned strategy control method. The computer-readable storage medium can be a non-transitory computer-readable storage medium. For example, the non-transitory computer-readable storage medium can be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0335] Figure 14 This is a block diagram illustrating an apparatus 1400 for transmitting tracking area codes according to an exemplary embodiment. For example, apparatus 1400 can be provided as a core network element, such as Network Open Function (NEF), Policy Control Function (PCF), Application Function (AF), etc. (See also...) Figure 14 The apparatus 1400 includes a processing component 1422, which further includes one or more processors, and memory resources represented by memory 1432 for storing instructions, such as application programs, that can be executed by the processing component 1422. The application programs stored in memory 1432 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 1422 is configured to execute instructions to perform the aforementioned unlicensed channel access method.

[0336] Device 1400 may also include a power supply component 1426 configured to perform power management of device 1400, a wired or wireless network interface 1450 configured to connect device 1400 to a network, and an input / output (I / O) interface 1459. Device 1400 may operate on an operating system stored in memory 1432, such as Windows Server™, MacOS X™, Unix™, Linux™, FreeBSD™, or similar.

[0337] Other embodiments of the present disclosure 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 present disclosure that follow the general principles of the embodiments of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the embodiments of the present disclosure are indicated by the following claims.

[0338] It should be understood that the embodiments disclosed herein 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 disclosed herein is limited only by the appended claims.

[0339] Industrial applicability

[0340] PCF receives relationship information and / or associated processing instructions between data streams in the media service group from the session request, and determines policy control rules related to the data streams in the extended reality media service group based on this relationship information and / or associated processing instructions. This effectively identifies and utilizes these relationships between data streams, which helps with network and service transmission and control, and also contributes to service assurance and user experience.

Claims

1. A strategy control method for extended reality media services, executed by a strategy control function (PCF), comprising: Receive a session request from Application Function (AF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and instructions for associated processing; Based on the relationship information and the association processing instructions, determine the policy control rules related to the data stream in the extended reality media service group; The relationship information includes dependency information and priority information, and the association processing instruction is used to instruct the data streams in the extended reality media service group to undergo association processing. The determination of policy control rules related to data streams in the extended reality media service group includes: In response to an extended reality media service corresponding to multiple user devices, generate or update PCC rules related to data streams in the extended reality media service group, and determine QoS authorization; send policy authorization notifications to other PCFs; wherein, the other PCFs are associated with data streams in the extended reality media service group, and the policy authorization notifications include the relationship information and the association processing instructions; In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with a second priority level, a current session update is triggered for the data stream with a first priority level; wherein, the first priority level is higher than the second priority level; In response to the dependency information including multiple dependency levels, and one or more data streams in the data stream set with the first dependency level failing to be authorized, the authorization of other data streams in the data stream set with the first dependency level fails, or the current session of other data streams in the data stream set with the first dependency level is updated. The data streams in the data stream set with the first dependency level are mutually dependent; the current session update includes the current PDU session update and the AF session release.

2. The method as described in claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: Generate or update policy control and billing PCC rules related to data streams in the Extended Reality Media Service Group.

3. The method as described in claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: Store and update the configuration files for the Extended Reality Media Services group.

4. The method of claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: In response to an extended reality media service corresponding to a single user device, PCC rules related to data streams in the extended reality media service group are generated or updated, and QoS authorization is determined.

5. The method of claim 1, wherein, Receiving a session request from AF includes one of the following: The session request is received directly from the AF; The session request is received via the Network Open Function (NEF). The session request is received via the Time-Sensitive Communication Time Synchronization Function (TSCTSF). as well as The session request is received through the NEF and the TSCTSF.

6. The method of claim 5, wherein, The session request is used by the NEF to perform a mapping operation when authorizing the data stream after receiving it; The mapping operation includes at least one of the following: Mapping of XRM service identifiers to DNN and S-NSSAI; Mapping of external applications to core network application identifiers; Mapping of external UE identifiers to internal UE identifiers based on unified data management of subscription information; The mapping of external to internal XRM business group identifiers performed based on UDM contract information.

7. The method of claim 1, wherein, The method further includes: Send a policy control update notification to the Service Management Function (SMF) to update the Protocol Data Unit (PDU) session of the SMF.

8. The method of claim 7, wherein, The updated PDU session includes updating the PCC rules and QoS policies associated with the session request.

9. The method of claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: Based on the relationship information, perform one of the following: Perform QoS authorization or update for a specific data stream; Perform QoS authorization or update for all data streams in the QoS data stream; and Perform QoS authorization or update for all data streams in a Protocol Data Unit (PDU) session.

10. The method of claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: In response to the priority information including multiple priority levels, and the failure of authorization for a data stream with the first priority level, the failure of authorization for a data stream with the second priority level is triggered, or the current session update for a data stream with the second priority level is triggered. The first priority level is higher than the second priority level.

11. The method of claim 10, wherein, The current session update includes: Current PDU session updated.

12. The method of claim 11, wherein, The current session update also includes: QoS authorization revocation and / or AF session release.

13. The method of claim 1, wherein, The triggering of the current session update for the data stream with the first priority level includes: PDU session update.

14. The method of claim 13, wherein, The triggering of a current session update for a data stream with a first priority level also includes at least one of the following: PCC rule update; QoS degradation; and AF session update.

15. The method of claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: In response to the session request including the association processing instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy and the association processing instruction, at least one of the following operations for the data stream in the Extended Reality Media Service Group is triggered: PCC rule update, QoS authorization update, and AF session release.

16. The method of claim 1, wherein, The determination of policy control rules related to data streams in the extended reality media service group includes: Based on the association processing instruction, perform one of the following: In response to the associated processing instruction being a simultaneous execution instruction, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, the authorization of other data streams in the Extended Reality Media Service Group fails, or the current session update of other data streams in the Extended Reality Media Service Group is triggered. In response to the association processing indication being a dependency-level priority processing indication, and one or more data streams in the first dependency-level data stream set failing to grant authorization, the authorization of other data streams in the first dependency-level data stream set fails, or the current session of other data streams in the first dependency-level data stream set is updated, wherein the data streams in the first dependency-level data stream set are mutually dependent. In response to the associated processing indication being an operator policy or a default processing indication, and at least one data stream in the Extended Reality Media Service Group failing to be authorized, based on the operator policy or PCF configuration policy, the corresponding data stream in the Extended Reality Media Service Group is triggered to fail to be authorized, or the current session of the corresponding data stream in the Extended Reality Media Service Group is triggered to be updated. In response to the associated processing indication including multiple processing indications and the priorities corresponding to the multiple processing indications, and at least one data stream in the extended reality media service group failing to be authorized, based on the multiple processing indications and the corresponding priorities, the authorization failure of the corresponding data stream in the extended reality media service group is triggered, or the current session update of the corresponding data stream in the extended reality media service group is triggered.

17. The method as claimed in any one of claims 1 to 16, wherein, The dependency information is used to indicate the dependencies between data streams, and the priority information is used to indicate the priority relationships between data streams.

18. The method as claimed in any one of claims 1 to 16, wherein, The session request also includes information related to the XRM service group, which includes at least one of the following: Service Group ID, User Equipment Address / User Equipment Identifier, AF Identifier, Application ID, Flow Description(s), Data Network Name (DNN), Single Network Slice Selection Auxiliary Information (S-NSSAI), and QoS parameters; The Group ID is used to identify all data streams or all user devices in the XRM business group.

19. A strategy control method for extended reality media services, executed by application function (AF), comprising: Send a session request to the Policy Control Function (PCF), the session request including information on the relationships between data streams in the Extended Reality Media Service Group and instructions for associated processing; The relationship information and the association processing instructions are used by the PCF to determine the policy control rules related to the data streams in the Extended Reality Media Service Group; The relationship information includes dependency information and priority information, and the association processing instruction is used to instruct the data streams in the extended reality media service group to undergo association processing. The PCC rules associated with the data streams in the Extended Reality Media Service Group are generated or updated by the PCF when the Extended Reality Media Service corresponds to multiple user devices, and the QoS authorization is determined by the PCF. The policy authorization notification is sent by the PCF to other PCFs; wherein, the other PCFs are associated with the data streams in the Extended Reality Media Service Group, and the policy authorization notification includes the relationship information and the association processing instruction; If the priority information includes multiple priority levels, and the authorization of a data stream with the second priority level fails, the current session update of the data stream with the first priority level is updated, wherein the first priority level is higher than the second priority level. The dependency information includes multiple dependency levels, and authorization failure occurs for one or more data streams in the data stream set with the first dependency level. Authorization failure of other data streams in the data stream set with the first dependency level is triggered, or current session update of other data streams in the data stream set with the first dependency level is triggered. The data streams in the data stream set with the first dependency level are mutually dependent; the current session update includes the current PDU session update and the AF session release.

20. The method of claim 19, wherein, Sending a session request to the PCF includes one of the following: The session request is sent directly to the PCF; The session request is sent to the PCF via the Network Open Function (NEF); The session request is sent to the PCF via the Time-Sensitive Communication Time Synchronization Function (TSCTSF). as well as The session request is sent to the PCF via the NEF and the TSCTSF.

21. The method of claim 20, wherein, The session request is used by the NEF to perform a mapping operation when authorizing the data stream after receiving it; The mapping operation includes at least one of the following: Mapping of XRM service identifiers to DNN and S-NSSAI; Mapping of external applications to core network application identifiers; Mapping of external UE identifiers to internal UE identifiers based on unified data management of subscription information; The mapping of external to internal XRM business group identifiers performed based on UDM contract information.

22. The method of claim 19, wherein, The method further includes: Receive a response message for the session request, the response message including the authorization result of the data stream in the Extended Reality Media Service Group.

23. The method as described in any one of claims 19 to 22, wherein, The dependency information is used to indicate the dependencies between data streams, and the priority information is used to indicate the priority relationships between data streams.

24. The method as described in any one of claims 19 to 22, wherein, The session request also includes information related to the XRM service group, which includes at least one of the following: Service Group ID, User Equipment Address / User Equipment Identifier, AF Identifier, Application ID, Flow Description(s), Data Network Name (DNN), Single Network Slice Selection Auxiliary Information (S-NSSAI), and QoS parameters; The Group ID is used to identify all data streams or all user devices in the XRM business group.

25. A strategy control device for extended reality media services, comprising: The transceiver module is configured to receive session requests from application function AF, the session requests including information on the relationships between data streams in the extended reality media service group and instructions for associated processing; The processing module is configured to determine policy control rules related to the data stream in the extended reality media service group based on the relationship information and the associated processing instructions; The relationship information includes dependency information and priority information. The association processing instruction is used to instruct the data streams in the extended reality media service group to undergo association processing. The processing module is further configured to: in response to an extended reality media service corresponding to multiple user devices, generate or update PCC rules related to data streams in the extended reality media service group, and determine QoS authorization; The transceiver module is further configured to: send policy authorization notifications to other PCFs; wherein the other PCFs are associated with data streams in the Extended Reality Media Service Group, and the policy authorization notifications include the relationship information and / or the association processing instructions; The processing module is further configured to: in response to the priority information including multiple priority levels, and the failure of authorization for a data stream with a second priority level, trigger a current session update for the data stream with a first priority level; wherein the first priority level is higher than the second priority level; In response to the dependency information including multiple dependency levels, and one or more data streams in the data stream set with the first dependency level failing to be authorized, the authorization of other data streams in the data stream set with the first dependency level fails, or the current session of other data streams in the data stream set with the first dependency level is updated. The data streams in the data stream set with the first dependency level are mutually dependent; the current session update includes the current PDU session update and the AF session release.

26. A strategy control device for extended reality media services, comprising: The transceiver module is configured to send session requests to the policy control function (PCF), the session requests including information on the relationships between data streams in the Extended Reality Media Service Group and instructions for associated processing. The relationship information and the association processing instructions are used by the PCF to determine the policy control rules related to the data streams in the Extended Reality Media Service Group; The relationship information includes dependency information and priority information. The association processing instruction is used to instruct the data streams in the extended reality media service group to undergo association processing. The PCC rules associated with the data streams in the Extended Reality Media Service Group are generated or updated by the PCF when the Extended Reality Media Service corresponds to multiple user devices, and the QoS authorization is determined by the PCF. The policy authorization notification is sent by the PCF to other PCFs; wherein, the other PCFs are associated with the data streams in the Extended Reality Media Service Group, and the policy authorization notification includes the relationship information and the association processing instruction; If the priority information includes multiple priority levels, and the authorization of a data stream with the second priority level fails, the current session update of the data stream with the first priority level is updated, wherein the first priority level is higher than the second priority level. The dependency information includes multiple dependency levels, and authorization failure occurs for one or more data streams in the data stream set with the first dependency level. Authorization failure of other data streams in the data stream set with the first dependency level is triggered, or current session update of other data streams in the data stream set with the first dependency level is triggered. The data streams in the data stream set with the first dependency level are mutually dependent; the current session update includes the current PDU session update and the AF session release.

27. A communication device, comprising a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the strategy control method as described in any one of claims 1-18.

28. A communication device, comprising a processor and a memory, wherein, The memory is used to store computer programs; The processor is used to execute the computer program to implement the strategy control method as described in any one of claims 19-24.

29. A computer-readable storage medium storing instructions that, when invoked and executed on a computer, cause the computer to perform the policy control method as described in any one of claims 1-18 or the policy control method as described in any one of claims 19-24.

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