Rule generation methods and network elements

Abstract

The present disclosure relates to rule generation methods and network elements. The method executed by a first network element comprises: receiving a first message sent by a second network element, wherein the first message is used for indicating PDU set processing capability information; and on the basis of the first message, determining a PCC rule. Thus, the present disclosure may support determining PCC rules on the basis of PDU set processing capability information, and can ensure service continuity and improve service quality.

Description

Rule generation method, network element Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a rule generation method and a network element. Background Art

[0002] Mobile media services, cloud AR (augmented reality) / VR (virtual reality) and other XR (extended reality) services, cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly high traffic volumes to 5G networks. XR services also involve multimodal data streams. This multimodal data can be input from the same device or different devices (including sensors) to describe the same service or application, and may be output to one or more destination devices. The data streams in multimodal data are often correlated, such as the synchronization of audio and video streams, or the synchronization of touch and vision.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a rule generation method and a network element for solving the problem in related technologies that the capability information based on protocol data unit (PDU) set processing is not supported to determine policy and charging control (PCC) rules.

[0005] The embodiments of the present disclosure provide a rule generation method and a network element.

[0006] According to the first aspect of an embodiment of the present disclosure, a rule generation method is proposed. The method is executed by a first network element, including: receiving a first message sent by a second network element, wherein the first message is used to indicate capability information of a protocol data unit PDU set processing; based on the first message, determining a PCC rule.

[0007] In the above embodiment, it is possible to support capability information based on PDU set processing and determine PCC rules, thereby ensuring service continuity and improving service quality.

[0008] According to the second aspect of an embodiment of the present disclosure, a rule generation method is proposed. The method is executed by a second network element, including: sending a first message to a first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine PCC rules.

[0009] In the above embodiment, the second network element can send the capability information of PDU set processing to the first network element, so that the first network element can determine the capability information of PDU set processing and determine the corresponding PCC rules, thereby ensuring business continuity and improving service quality.

[0010] According to the third aspect of an embodiment of the present disclosure, a rule generation method is proposed, which is executed by a fourth network element, including: sending a third message to the second network element, wherein the third message is used to indicate capability information of PDU set processing, the third message is used for the second network element to send a first message to the first network element, the first message is used to indicate capability information of PDU set processing, and the first message is used for the first network element to determine the PCC rule.

[0011] In the above embodiment, the fourth network element can send the capability information of PDU set processing to the second network element, so that the second network element can determine the capability information of PDU set processing and send it to the first network element for the first network element to determine the PCC rules, which can ensure business continuity and improve service quality.

[0012] According to the fourth aspect of an embodiment of the present disclosure, a rule generation method is proposed, including: the fourth network element sends a third message to the second network element, wherein the third message is used to indicate capability information of PDU set processing; the second network element sends a first message to the first network element, wherein the first message is used to indicate capability information of PDUset processing; the first network element receives the first message sent by the second network element; and the first network element determines the PCC rule based on the first message.

[0013] In the above embodiment, the capability information based on PDU set processing is supported to determine PCC rules, thereby ensuring service continuity and improving service quality.

[0014] According to the fifth aspect of an embodiment of the present disclosure, a first network element is proposed, including: a transceiver module for receiving a first message sent by a second network element, wherein the first message is used to indicate capability information of PDUset processing; a processing module for determining PCC rules based on the first message.

[0015] According to the sixth aspect of an embodiment of the present disclosure, a second network element is proposed, including: a transceiver module, used to send a first message to a first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine PCC rules.

[0016] According to the seventh aspect of an embodiment of the present disclosure, a fourth network element is proposed, including: a transceiver module, used to send a third message to a second network element, wherein the third message is used to indicate capability information of PDU set processing, and the third message is used for the second network element to send a first message to a first network element, and the first message is used to indicate capability information of PDU set processing, and the first message is used for the first network element to determine PCC rules.

[0017] According to an eighth aspect of an embodiment of the present disclosure, a first network element is proposed, comprising: one or more processors; wherein the first network element is used to execute the method described in the first aspect above.

[0018] According to a ninth aspect of an embodiment of the present disclosure, a second network element is proposed, comprising: one or more processors; wherein the second network element is used to execute the method described in the second aspect above.

[0019] According to a tenth aspect of an embodiment of the present disclosure, a fourth network element is proposed, comprising: one or more processors; wherein the fourth network element is used to execute the method described in the third aspect above.

[0020] According to the eleventh aspect of an embodiment of the present disclosure, a communication system is provided, including a first network element, a second network element, and a fourth network element, wherein the first network element is configured to implement the method described in the first aspect, the second network element is configured to implement the method described in the second aspect, and the fourth network element is configured to implement the method described in the third aspect.

[0021] According to a twelfth aspect of an embodiment of the present disclosure, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect, the second aspect or the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1A is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

[0023] FIG1B is a schematic diagram of a 5G networking architecture provided by an embodiment of the present disclosure;

[0024] FIG2 is a flow chart of a rule generation method provided by an embodiment of the present disclosure;

[0025] FIG3A is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0026] FIG3B is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0027] FIG3C is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0028] FIG4A is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0029] FIG4B is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0030] FIG5A is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0031] FIG5B is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0032] FIG6A is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0033] FIG6B is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0034] FIG6C is a flowchart of another rule generation method provided by an embodiment of the present disclosure;

[0035] FIG7A is a structural diagram of a first network element provided by an embodiment of the present disclosure;

[0036] FIG7B is a structural diagram of a second network element provided by an embodiment of the present disclosure;

[0037] FIG7C is a structural diagram of a fourth network element provided by an embodiment of the present disclosure;

[0038] FIG8A is a structural diagram of a communication device provided by an embodiment of the present disclosure;

[0039] FIG8B is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] The embodiments of the present disclosure provide a rule generation method and a network element.

[0041] In a first aspect, an embodiment of the present disclosure proposes a rule generation method, which is executed by a first network element, comprising: receiving a first message sent by a second network element, wherein the first message is used to indicate capability information for processing a protocol data unit (PDU) set; determining a PCC rule based on the first message;

[0042] In the above embodiment, it is possible to support capability information based on PDU set processing and determine PCC rules, thereby ensuring service continuity and improving service quality.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the capability information of PDU set processing includes: the support status of PDU set processing and / or whether the support status of PDU set processing has changed.

[0044] In the above embodiment, the first network element may determine the PCC rule based on the support status of the PDU set processing or information on whether the support status of the PDU set processing has changed.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the first network element sending the PCC rule to the second network element.

[0046] In the above embodiment, when the first network element determines the PCC rule based on the support status of PDU set processing or whether the support status of PDU set processing has changed, it can send the determined PCC rule to the second network element, which can ensure business continuity and improve service quality.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: initiating a session modification process, or initiating a session management policy association modification process.

[0048] In the above embodiment, when the first network element determines the PCC rule based on the capability information processed by the PDU set, it may initiate a session modification process or a session management policy association modification process to modify the PCC rule determined by the session application.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the first network element sends a first subscription event notification to the second network element, wherein the first subscription event notification is used to obtain capability information of PDU set processing.

[0050] In the above embodiment, the first network element can subscribe to the event notification of the capability information of the PDU set processing so as to obtain the capability information of the PDU set processing in a timely manner. The first network element can subscribe to the event notification of the support status of the PDU set processing, or subscribe to obtain the event notification of the change of the support status of the PDU set processing, so as to obtain the information of the support status of the PDU set processing or the change of the support status of the PDU set in a timely manner.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first subscription event notification is related to a policy control request trigger.

[0052] In the above embodiment, the first network element sends a first subscription event notification to the second network element, which can serve as a policy control request trigger. When the policy control request trigger is satisfied, that is, the second network element receives the first subscription event notification, the second network element can send a first message to the first network element, thereby sending information about the support status of PDU set processing or whether the support status of PDU set processing has changed to the first network element.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the first network element sends the first subscription event notification to the second network element, including: sending the first subscription event notification to the second network element according to local configuration or operation management and maintenance OAM configuration.

[0054] In the above embodiment, the first network element may send the first subscription event notification to the second network element based on local configuration or OAM configuration.

[0055] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the first network element receives a subscription request sent by the third network element, wherein the subscription request is used to request to obtain capability information of PDU set processing.

[0056] In the above embodiment, the first network element may send the first subscription event notification to the second network element based on the received subscription request sent by the third network element.

[0057] In combination with some embodiments of the first aspect, in some embodiments, the above method further includes: the first network element sends a second message to the third network element, wherein the second message is used to indicate capability information of PDU set processing.

[0058] In the above embodiment, the first network element may send information on the support status of the PDU set processing or whether the support status of the PDU set processing has changed to the third network element to obtain new QoS requirements or trigger the AF to perform session modification.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the PCC rule includes a first PCC rule generated by a first network element, and the first network element determines the PCC rule based on the first message, including:

[0060] determining that the first message is used to indicate support for PDU set processing, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0061] determining that the first message is used to indicate support for PDU processing and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0062] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0063] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0064] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0065] It is determined that the first message is used to indicate that the support of PDU set processing is changed to support of PDU processing, and no PCC rule currently exists, a PCC rule is determined to be generated, and a first PCC rule is determined.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the PCC rule includes a second PCC rule updated by the first network element, and the first network element determines the PCC rule based on the first message, including:

[0067] determining that the first message is used to indicate support for PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0068] determining that the first message is used to indicate support for PDU processing, and the current PCC rule is generated based on the PDU set, determining to update the current PCC rule, and determining a second PCC rule; or

[0069] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0070] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0071] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0072] It is determined that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing, and the current PCC rule is generated based on the PDU set, it is determined to update the current PCC rule, and a second PCC rule is determined.

[0073] In the second aspect, an embodiment of the present disclosure proposes a rule generation method, which is executed by a second network element, including: sending a first message to a first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine PCC rules.

[0074] In the above embodiment, the second network element can send the capability information of PDU set processing to the first network element, so that the first network element can determine the capability information of PDU set processing and determine the corresponding PCC rules, thereby ensuring business continuity and improving service quality.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the capability information of PDU set processing includes: the support status of PDU set processing and / or whether the support status of PDU set processing has changed.

[0076] In combination with some embodiments of the second aspect, in some embodiments, the above method also includes: the second network element receives a first subscription event notification sent by the first network element, wherein the first subscription event notification is used to obtain support status information of PDU set processing, or the first subscription event notification is used to obtain PDU set support status change information.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the second network element receives a third message sent by the fourth network element, wherein the third message is used to indicate capability information of PDU set processing.

[0078] In the above embodiment, the second network element may determine the support status of the PDU set processing or whether the support status of the PDU set processing has changed based on the third message sent by the fourth network element, and then may send the first message to the first network element.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the second network element receives the third message sent by the fourth network element, including: receiving the third message sent by the fourth network element through the access and mobility management function AMF, wherein the fourth network element is the radio access network RAN, and the second network element is the session management function SMF.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the above method also includes: the second network element sends a second subscription event notification to the fourth network element, wherein the second subscription event notification is used to obtain capability information of PDU set processing.

[0081] In the above embodiment, the second network element may send a second subscription event notification to the fourth network element to obtain information about the support status of the PDU set processing or whether the support status of the PDU set processing has changed from the fourth network element.

[0082] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the second network element initiating a session management policy creation process, or initiating a session management policy modification process.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the second network element receives the PCC rule sent by the first network element; and determines the quality of service QoS rule according to the PCC rule.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the above method further includes: the second network element sending the QoS rules to the fourth network element.

[0085] In a third aspect, an embodiment of the present disclosure proposes a rule generation method, which is executed by a fourth network element, including: sending a third message to a second network element, wherein the third message is used to indicate capability information of PDU set processing, and the third message is used for the second network element to send a first message to a first network element, and the first message is used to indicate capability information of PDU set processing, and the first message is used for the first network element to determine PCC rules.

[0086] In the above embodiment, the fourth network element can send information about the support status of PDU set processing or whether the support status of PDU set processing has changed to the second network element, so that the second network element can determine the support status of PDU set processing or whether the support status of PDU set processing has changed, and send it to the first network element for the first network element to determine the PCC rules, which can ensure business continuity and improve service quality.

[0087] In combination with some embodiments of the third aspect, in some embodiments, the fourth network element sends a third message to the second network element, including: sending the third message to the second network element through the AMF, wherein the fourth network element is the RAN and the second network element is the SMF.

[0088] In combination with some embodiments of the third aspect, in some embodiments, the above method also includes: the fourth network element receives a second subscription event notification sent by the second network element, wherein the second subscription event notification is used to obtain capability information of PDU set processing.

[0089] In conjunction with some embodiments of the third aspect, in some embodiments, the fourth network element sending the third message to the second network element includes: determining that a specified condition is met, and sending the third message to the second network element;

[0090] The specified conditions include at least one of the following:

[0091] When a network element switch occurs, the fourth network element is the network element after the switch;

[0092] PDU set processing capability changes;

[0093] Changes in PDU set processing capabilities triggered by OAM configuration;

[0094] Changes in PDU set processing capabilities caused by triggering busy / idle time windows;

[0095] Changes in PDU set processing capabilities triggered by QoS notification control;

[0096] PDU set handles state changes;

[0097] PDU set processing status changes caused by OAM configuration triggers;

[0098] PDU set processing status changes caused by triggering when the time window is busy or idle;

[0099] PDU set processing state changes caused by QoS notification control triggering.

[0100] In a fourth aspect, an embodiment of the present disclosure proposes a first network element, which includes at least one of a transceiver module and a processing module; wherein the first network element is used to execute the optional implementation method of the first aspect.

[0101] In a fifth aspect, an embodiment of the present disclosure proposes a second network element, which includes at least one of a transceiver module and a processing module; wherein the second network element is used to execute the optional implementation method of the second aspect.

[0102] In the sixth aspect, an embodiment of the present disclosure proposes a fourth network element, which includes at least one of a transceiver module and a processing module; wherein the fourth network element is used to execute the optional implementation method of the third aspect.

[0103] In a seventh aspect, an embodiment of the present disclosure proposes a first network element, which includes: one or more processors; wherein the first network element is used to execute the optional implementation method of the first aspect.

[0104] In an eighth aspect, an embodiment of the present disclosure proposes a second network element, which includes: one or more processors; wherein the second network element is used to execute an optional implementation method of the second aspect.

[0105] In the ninth aspect, an embodiment of the present disclosure proposes a fourth network element, which includes: one or more processors; wherein the fourth network element is used to execute an optional implementation method of the third aspect.

[0106] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, which includes a first network element, a second network element, and a fourth network element, wherein the first network element is configured to implement the method described in the first aspect, the second network element is configured to implement the method described in the second aspect, and the fourth network element is configured to implement the method described in the third aspect.

[0107] In the eleventh aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect, the second aspect or the third aspect.

[0108] In a twelfth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation manner of the first aspect, the second aspect or the third aspect.

[0109] In a thirteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect, the second aspect, or the third aspect.

[0110] In a fourteenth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect, the second aspect, or the third aspect.

[0111] It is understandable that the first network element, the second network element, the fourth network element, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system described above are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0112] The present disclosure provides a rule generation method and a network element. In some embodiments, the term rule generation method can be interchangeably used with information processing method, communication method, etc.

[0113] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0114] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0115] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0116] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0117] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0118] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0119] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0120] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0121] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0122] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0123] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0124] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0125] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0126] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0127] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0128] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0129] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0130] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0131] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0132] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0133] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0134] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0135] FIG1A is an architecture diagram of a communication system provided by an embodiment of the present disclosure.

[0136] As shown in FIG1A , a communication system 100 includes a terminal 101 and a network device 102 .

[0137] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0138] In some embodiments, the network device 102 may include at least one of an access network element (or, referred to as access network equipment (radio access network, RAN)) and a core network element (or, referred to as core network equipment).

[0139] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0140] In some embodiments, the core network device may be a single device including the first network element 1031, the second network element 1032, etc., or may be a plurality of devices or a device group including all or part of the first network element 1031, the second network element 1032, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0141] In some embodiments, the second network element is, for example, a policy control function (PCF).

[0142] In some embodiments, the second network element is, for example, a session management function (SMF).

[0143] In some embodiments, the third network element is, for example, an application function (AF).

[0144] In some embodiments, the fourth network element is, for example, a user plane function (UPF).

[0145] In some embodiments, the first network element supports providing a unified policy framework to control network behavior, provides policy rules to the control layer network function, and is responsible for obtaining user subscription information related to policy decisions.

[0146] In some embodiments, the second network element is used to perform packet data unit (PDU) session management for the terminal, execution of PCF control policy, selection of user plane function (UPF) network elements, allocation of terminal device IP addresses when the PDU type is an Internet Protocol (IP) type, etc.

[0147] In some embodiments, the fourth network element is used to implement policy control functions such as session and service flow level billing, QoS bandwidth guarantee and mobility management, and user equipment policy decision-making.

[0148] In some embodiments, the fourth network element may be independent of the core network device.

[0149] In some embodiments, the fourth network element may be part of a core network device.

[0150] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0151] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0152] The embodiments of the present disclosure may be applied to long term evolution (LTE), LTE-advanced (LTE-A), LTE-beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), global system for mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-wideband (UWB), and the like. band, UWB), Bluetooth (registered trademark), public land mobile network (PLMN) network, device-to-device (D2D) system, machine-to-machine (M2M) system, Internet of Things (IoT) system, vehicle-to-everything (V2X), systems using other communication methods, and next-generation systems based on them. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) for application.

[0153] FIG1B is a schematic diagram of a 5G networking architecture provided in an embodiment of the present disclosure.

[0154] As shown in Figure 1B, the network functions related to the 5G network architecture are described as follows:

[0155] Application function (AF): also known as application controller, is mainly used to convey the requirements of the application side to the network side, such as quality of service (QoS) requirements, user status event subscription, etc. AF can be an application function entity of a third-party application, or it can be an application service deployed by an operator, such as an IMS voice call service. Among them, when the application function entity of a third-party application interacts with the core network, it can be authorized through the capability exposure function (NEF). For example, the application function entity of the third-party application directly sends a request message to the NEF, and the NEF verifies whether the AF is allowed to send the request message. If the verification is successful, the request message is forwarded to the corresponding policy control function (PCF) or unified data management function (UDM).

[0156] PCF: Mainly used to implement policy control functions such as session and service flow level billing, QoS bandwidth guarantee and mobility management, and user equipment policy decision-making.

[0157] SMF: Mainly used for packet data unit (PDU) session management for terminals, execution of PCF control policy, selection of user plane function (UPF), and allocation of terminal IP addresses when the PDU type is IP type.

[0158] UPF: Mainly used as the interface between the terminal and the data network, it performs functions such as user plane data forwarding, session / flow-level billing statistics, and bandwidth limitation.

[0159] UDM: Mainly used to implement data management functions such as managing contract information and user access authorization.

[0160] Access and Mobility Management Function (AMF): This function is primarily responsible for implementing terminal mobility management and access authentication / authorization. It is also responsible for communicating user policies between the terminal and the PCF.

[0161] Unified data repository (UDR): Mainly responsible for the storage and access functions of data such as contract information, policy data, and application data. UDR can interface with UDM, PCF, NEF, etc. to achieve corresponding network element access or call.

[0162] Of course, the core network may also include other network functions besides the network functions described in the above examples, which are not listed here one by one.

[0163] It should be noted that the embodiments of the present disclosure do not limit the names of the corresponding network functions that implement various functions. They can also implement other functions or be integrated with other functional network elements, and can also be called other names.

[0164] In the 5G networking architecture shown in Figure 1B, the main functions of some related communication interfaces between network functions and between network functions and devices are described as follows:

[0165] N1 interface: It is the signaling interface between the AMF and the terminal. It is independent of the access network and is used to exchange signaling messages between the core network and the terminal. It can be used in processes such as terminal registration, terminal establishment of PDU session, and network side terminal policy configuration.

[0166] N2 interface: It is the interface between AMF and RAN equipment, used to transmit radio bearer control information from the core network to the RAN equipment.

[0167] N3 interface: the interface between the (R)AN device and the UPF, used to transfer terminal service data between the RAN device and the UPF.

[0168] N4 interface: It is the interface between SMF and UPF, used to transmit information between the control plane and the user plane. It can be used by the control plane terminal to complete the network access operation and other processes according to the contract information with the operator.

[0169] N6 interface: the interface between UPF and data network (DN), used to transfer terminal service data between UPF and DN.

[0170] N7 interface: It is the interface between PCF and SMF, used to deliver information such as PDU session granularity and service data flow granularity control policy.

[0171] N8 interface: It is the interface between AMF and UDM, used by AMF to obtain access and mobility management-related subscription information and authentication data from UDM, and AMF to register the terminal's current mobility management-related information with UDM.

[0172] N10 interface: It is the interface between SMF and UDM, used by SMF to obtain session management-related contract information from UDM, and for SMF to register terminal current session information with UDM.

[0173] N11 interface: It is the interface between SMF and AMF, used to transmit PDU session tunnel information between RAN equipment and UPF, control messages sent to terminals, radio resource control information sent to RAN equipment, etc.

[0174] Mobile media services, cloud AR (augmented reality) / VR (virtual reality) and other XR (extended reality) services, cloud gaming, and video-based remote control of machines or drones are expected to contribute increasingly high traffic volumes to 5G networks. XR services also involve multimodal data streams. This multimodal data can be input from the same device or different devices (including sensors) to describe the same service or application, and may be output to one or more destination devices. The data streams in multimodal data are often correlated, such as the synchronization of audio and video streams, or the synchronization of touch and vision. These media services share common characteristics within their data streams, between data streams, and in terms of the network transmission requirements. Effectively identifying and leveraging these characteristics will facilitate network and service transmission and control, as well as enhance service assurance and user experience.

[0175] XRM (XR and media) services require the fifth-generation mobile communication system (5GS) to comprehensively consider the quality of service (QoS) characteristics of relevant data flows. For example, parameters such as guaranteed bitrate (GBR) data flows, guaranteed flow bitrate (GFBR), packet delay budget (PDB), and maximum data burst volume (MDBV) must be met and coordinated simultaneously. This also involves ensuring the consistency of QoS authorization and execution for multiple XRM data flows within a single terminal and for XRM data flows across multiple terminals.

[0176] In the 5G system, AF supports enhanced processing of XRM service data flows on a per-PDU-set basis. This supports AF's enhanced QoS awareness and assurance of XRM service data flows, as well as enhanced user Quality of Experience (QoE). This includes AF providing PDU Set-specific QoS features and protocol specifications:

[0177] -PDU Set Delay Budget (PSDB);

[0178] -PDU Set Error Rate (PSER);

[0179] -PDU Set Integrated Processing Information (PSIHI).

[0180] The SMF and UPF can perform the general packet radio service tunneling protocol for the user plane (GTP-U) header extension of the corresponding PDU in the corresponding SDF PDU set in combination with the protocol description and protocol header extension provided by the AF, carrying PDU Set information. The PDU Set information is used by the NG-RAN for PDU Set-based QoS processing. The PDU Set information includes:

[0181] -PDU Set sequence number.

[0182] -Indication of the last PDU of the PDU Set.

[0183] -PDU sequence number within the PDU Set.

[0184] -PDU Set size (in bytes).

[0185] -PDU Set Importance, used to identify the relative importance of a PDU Set compared to other PDU Sets in a QoS flow.

[0186] The UPF will perform the mapping of AF service data flow (SDF) to QoS flow based on PDR rules; encapsulate the associated PDU into a PDU set; and implement relevant Set-related QoS policies such as PDU Set Error Rate (PSER) and PDU Set Delay Budget (PSDB) for the PDU Set within the QoS flow.

[0187] The 5GS system supports QoS processing in which either PDU-based QoS rules and parameter policies or PDU set-based QoS rules and parameter policies are supported within the same QoS flow. This means that only one set of QoS parameters can be activated simultaneously within a QoS flow, either the PDU-based QoS mechanism or the PDU set-based QoS mechanism.

[0188] However, in the actual network, there are various types of NG-RAN (Non-homogenous support) with different functional support. For example, there are NG-RANs that do not support PDU set processing and NG-RANs that support PDU set processing. Due to the business continuity requirements of XR, data forwarding is required for downlink data in the handover process (such as terminal mobility). (Data forwarding supports direct and indirect modes. In direct mode, the source NG-RAN forwards to the target NG-RAN. In indirect mode, the UPF performs data forwarding to the target-NG-RAN. It should be noted that in indirect mode, the UPF that performs data forwarding is not necessarily the UPF corresponding to the source NG-RAN in the handover.

[0189] Among them, when handover (HO) occurs between an NG-RAN that does not support PDU set processing and an NG-RAN that supports PDU set processing, especially when switching from a source NG-RAN that does not support PDU set processing to a target NG-RAN that supports PDU set processing, unmarked PDUs and marked PDUs will exist in the same QoS flow at the same time.

[0190] However, the 5GS system does not support the scenario where unmarked PDUs and marked PDUs coexist in the same QoS flow, and cannot guarantee the QoS of the corresponding QoS flow.

[0191] In some embodiments, the generation mechanism of the PCC rule carrying the PDU set QoS parameter is as follows:

[0192] The PCF may generate PDU set control information including PDU set QoS parameters and protocol description in the PCC rules based on local configuration or based on information received from the AF.

[0193] The PCF generates PDU set control information for the service data flow with PDU set within the PCC rules based on the information provided by the AF or based on local policies.

[0194] When the AF requests to establish a data session to the terminal with a specific QoS, the AF may also provide separate QoS parameters, request PDU set delay budget, request PDU set error rate, and request PDU set comprehensive processing information, to describe the requirements for PDU set QoS processing.

[0195] Related technologies do not support determining PCC rules based on capability information processed by PDU sets.

[0196] Based on this, embodiments of the present disclosure provide a rule generation method and network element. The method, performed by a first network element, includes: receiving a first message sent by a second network element, wherein the first message indicates capability information for PDU set processing; and determining a PCC rule based on the first message. This supports determining PCC rules based on capability information for PDU set processing, ensuring service continuity and improving service quality.

[0197] FIG2 is an interactive diagram of a rule generation method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0198] S201: The third network element sends a subscription request to the first network element.

[0199] In some embodiments, the first network element receives a subscription request.

[0200] In some embodiments, the first network element is a PCF.

[0201] In some embodiments, the third network element is an AF.

[0202] In some embodiments, the subscription request is used to request capability information of PDU set processing.

[0203] In some embodiments, the subscription request is used to request the acquisition of the PDU set processing capability information of any network function, or the subscription request is used to request the acquisition of the PDU set processing capability of multiple network functions, and the generated PDU set processing capability information of the current business data flow, or the subscription request is used to request the acquisition of the PDU set processing capability of multiple network functions, and the generated PDU set processing capability information of the current session, or the subscription request is used to request the acquisition of the PDU set processing capability of multiple network functions, and the generated PDU set processing capability information of the current terminal.

[0204] In some embodiments, the subscription request is used to request to obtain capability information of the RAN's PDU set processing.

[0205] In some embodiments, the subscription request is used to request the UPF's PDU set processing capability information.

[0206] In some embodiments, the subscription request is used to request the acquisition of the capability information of the SMF's PDU set processing.

[0207] In some embodiments, the subscription request is used to request to obtain the capability information of the PDU set processing of the current service data flow generated by integrating the capabilities of multiple PDU set processing in RAN, UPF, and SMF.

[0208] In some embodiments, the subscription request is used to request to obtain the capabilities of multiple PDU set processing in the integrated RAN, UPF, and SMF, and to generate the capability information of the PDU set processing of the current session.

[0209] In some embodiments, the subscription request is used to request to obtain the PDU set processing capability information of the current terminal generated by integrating multiple PDU set processing capabilities in RAN, UPF, and SMF.

[0210] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0211] In some embodiments, the subscription request is used to request support status information of PDU set processing.

[0212] In some embodiments, the subscription request is used to request to obtain the support status change information of the PDU set process.

[0213] In some embodiments, the name of the subscription request is not limited, and may be, for example, a "request message" or the like.

[0214] In some embodiments, the third network element sends a subscription request to the first network element. When the third network element is an AF and the first network element is a PCF, the third network element may send the subscription request to the first network element through a network exposure function (NEF).

[0215] In some embodiments, the third network element sends a subscription request to the first network element, the subscription request being used to request obtaining support status information for PDU set processing. Thus, after receiving the subscription request sent by the third network element, the first network element can execute a process for determining support status information for PDU set processing.

[0216] In some embodiments, the third network element sends a subscription request to the first network element, the subscription request being used to request information about changes in the supported state of the PDU set processing. Thus, after receiving the subscription request sent by the third network element, the first network element may execute a process for determining information about changes in the supported state of the PDU set processing.

[0217] S202: The first network element sends a first subscription event notification to the second network element.

[0218] In some embodiments, the second network element is an SMF.

[0219] In some embodiments, the first subscription event notification is used to obtain capability information of PDU set processing.

[0220] In some embodiments, the first subscription event notification is used to obtain the capability information of PDU set processing of any network function, or the first subscription event notification is used to obtain the capability information of PDU set processing of the current service data flow generated by integrating the capability of PDU set processing of multiple network functions, or the first subscription event notification is used to obtain the capability information of PDU set processing of the current session generated by integrating the capability of PDU set processing of multiple network functions, or the first subscription event notification is used to obtain the capability information of PDU set processing of the current terminal generated by integrating the capability of PDU set processing of multiple network functions.

[0221] In some embodiments, the first subscription event notification is used to obtain capability information of the RAN's PDU set processing.

[0222] In some embodiments, the first subscription event notification is used to obtain capability information of PDU set processing of the UPF.

[0223] In some embodiments, the first subscription event notification is used to obtain capability information of PDU set processing of the SMF.

[0224] In some embodiments, the first subscription event notification is used to obtain the capabilities of multiple PDU set processing in the integrated RAN, UPF, and SMF, and generate the capability information of the PDU set processing of the current service data flow.

[0225] In some embodiments, the first subscription event notification is used to obtain the capabilities of multiple PDU set processing in the integrated RAN, UPF, and SMF to generate capability information of the PDU set processing of the current session.

[0226] In some embodiments, the first subscription event notification is used to obtain the capabilities of multiple PDU set processing in the integrated RAN, UPF, and SMF to generate the PDU set processing capability information of the current terminal.

[0227] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0228] In some embodiments, the first subscription event notification is used to obtain support status information of PDU set processing.

[0229] In some embodiments, the first subscription event notification is used to obtain PDU set support status change information.

[0230] In some embodiments, the name of the first subscription event notification is not limited, and may be, for example, a "first request message", a "first event subscription request message", or the like.

[0231] In some embodiments, upon receiving the subscription request sent by the third network element, the first network element sends a first subscription event notification to the second network element.

[0232] Exemplarily, the first network element receives a subscription request sent by the third network element, executes a process of determining capability information of PDU set processing, and may send a first subscription event notification to the second network element.

[0233] In some embodiments, the first subscription event notification is associated with a policy control request trigger.

[0234] The first subscription event notification is used to obtain support status information of PDU set processing, or the first subscription event notification is used to obtain PDU set support status change information.

[0235] It can be understood that if the policy control request trigger is met, the second network element can initiate a session management (SM) policy association modification process, wherein the first subscription event notification is related to the policy control request trigger, and the second network element receives the first subscription event notification sent by the first network element, which can be used as a condition for satisfying the policy control request trigger.

[0236] Exemplarily, when the first subscription event notification is used to obtain support status information for PDU set processing, the second network element receives the first subscription event notification sent by the first network element, and can determine that the policy control request trigger is satisfied, and further determine to execute the acquisition of support status information for PDU set processing.

[0237] For example, when the first subscription event notification is used to obtain PDU set support status change information, the second network element receives the first subscription event notification sent by the first network element, and can determine that when the PDU set support status changes, the policy control request trigger is satisfied, and then determine to execute the support status information for obtaining the PDU set processing.

[0238] Exemplarily, as shown in Table 1 below, access is made to an independent policy control request trigger related to the SMF.

[0239] Table 1

[0240] In some embodiments, the capability information of PDU set processing includes a change in the support status of PDU set processing, wherein the first network element sends a first subscription event notification to the second network element, including: the first network element sends a policy control request trigger to the second network element, wherein the policy control request trigger is used for the second network element to send a first message to the first network element when it is determined that the support status of PDU set processing has changed.

[0241] In some embodiments, the first network element sends a first subscription event notification to the second network element according to local configuration or OAM configuration.

[0242] In the embodiment of the present disclosure, the first network element sends a first subscription event notification to the second network element according to local configuration.

[0243] In an embodiment of the present disclosure, a first network element sends a first subscription event notification to a second network element according to operations, administration and maintenance (OAM) configuration.

[0244] In some embodiments, a first network element sends a first subscription event notification to a second network element, where the first subscription event notification is used to obtain support status information of a PDU set process, or the first subscription event notification is used to obtain support status change information of a PDU set process. Thus, upon receiving the first subscription event notification sent by the first network element, the second network element may execute a process for determining support status information of a PDU set process, or a process for obtaining support status change information of a PDU set process.

[0245] S203: The second network element sends a second subscription event notification to the fourth network element.

[0246] In some embodiments, the fourth network element is a RAN or a UPF.

[0247] In some embodiments, the second subscription event notification is used to obtain capability information of PDU set processing.

[0248] In some embodiments, the second subscription event notification is used to obtain the capability information of PDU set processing of any network function, or the second subscription event notification is used to obtain the capability information of PDU set processing of the current service data flow generated by integrating the capability of PDU set processing of multiple network functions, or the second subscription event notification is used to obtain the capability information of PDU set processing of the current session generated by integrating the capability of PDU set processing of multiple network functions, or the second subscription event notification is used to obtain the capability information of PDU set processing of the current terminal generated by integrating the capability of PDU set processing of multiple network functions.

[0249] In some embodiments, the second subscription event notification is used to obtain capability information of the RAN's PDU set processing.

[0250] In some embodiments, the second subscription event notification is used to obtain capability information of PDU set processing of the UPF.

[0251] In some embodiments, the second subscription event notification is used to obtain the PDU set processing capabilities of the integrated RAN and UPF, and generate the PDU set processing capability information of the current service data flow.

[0252] In some embodiments, the second subscription event notification is used to obtain the PDU set processing capabilities of the integrated RAN and UPF to generate the PDU set processing capability information of the current session.

[0253] In some embodiments, the second subscription event notification is used to obtain the PDU set processing capabilities of the integrated RAN and UPF, and generate the PDU set processing capability information of the current terminal.

[0254] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0255] In some embodiments, the second subscription event notification is used to obtain support status information of the PDU set process.

[0256] In some embodiments, the second subscription event notification is used to obtain PDU set support status change information.

[0257] In some embodiments, the name of the second subscription event notification is not limited, and may be, for example, a "second request message", a "second event subscription request message", or the like.

[0258] In some embodiments, upon receiving the first subscription event notification sent by the first network element, the second network element sends a second subscription event notification to the fourth network element.

[0259] Exemplarily, the second network element receives the first subscription event notification sent by the first network element, executes the process of determining the support status information of PDU set processing, or executes the process of obtaining the support status change information of PDU set processing, and sends the second subscription event notification to the fourth network element.

[0260] In some embodiments, the second network element sends a second subscription event notification to the fourth network element. When the fourth network element is a RAN, the second network element sends the second subscription event notification to the fourth network element through the AMF.

[0261] In some embodiments, the second network element receives a first subscription event notification sent by the first network element, and the first subscription event notification is used to obtain capability information of PDU set processing. Based on this, the second network element receives the first subscription event notification sent by the first network element, determines to execute a process to determine the capability information of PDU set processing, and then the second network element sends a second subscription event notification to the fourth network element, and the second subscription event notification is used to obtain capability information of PDU set processing.

[0262] In some embodiments, the second network element receives a first subscription event notification sent by the first network element, and the first subscription event notification is used to obtain the support status information of the PDU set processing. Based on this, the second network element receives the first subscription event notification sent by the first network element, determines to execute the process of determining the support status information of the PDU set processing, and then the second network element sends a second subscription event notification to the fourth network element, and the second subscription event notification is used to obtain the support status information of the PDU set processing.

[0263] In some embodiments, the second network element receives a first subscription event notification sent by the first network element, and the first subscription event notification is used to obtain PDU set support status change information. Based on this, the second network element receives the first subscription event notification sent by the first network element, determines to execute the process of determining the support status change information of PDU set processing, and then the second network element sends a second subscription event notification to the fourth network element, and the second subscription event notification is used to obtain PDU set support status change information.

[0264] S204: The fourth network element sends a third message to the second network element.

[0265] In some embodiments, the third message is used to indicate capability information of PDU set processing.

[0266] In some embodiments, the third message is used to indicate the capability information of PDU set processing of any network function, or the third message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current service data flow is generated, or the third message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current session is generated, or the third message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current terminal is generated.

[0267] In some embodiments, the third message is used to indicate capability information of the RAN for PDU set processing.

[0268] In some embodiments, the third message is used to indicate capability information of the UPF's PDU set processing.

[0269] In some embodiments, the third message is used to indicate the PDU set processing capability of the integrated RAN and UPF to generate the PDU set processing capability information of the current service data flow.

[0270] In some embodiments, the third message is used to indicate the PDU set processing capability information of the current session generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0271] In some embodiments, the third message is used to indicate the PDU set processing capability information of the current terminal generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0272] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0273] In some embodiments, the third message is used to indicate the support status of the PDU set processing.

[0274] In some embodiments, the third message is used to indicate that the support status of the PDU set processing is supported.

[0275] In some embodiments, the third message is used to indicate that the support status of the PDU set processing is not supported.

[0276] In some embodiments, the third message is used to indicate that the support status of the PDU set processing is an activated state.

[0277] In some embodiments, the third message is used to indicate that the support state of the PDU set processing is a deactivated state.

[0278] In some embodiments, the third message is used to indicate whether the support status of the PDU set processing has changed.

[0279] In some embodiments, the third message is used to indicate a change in the support status of the PDU set processing.

[0280] In some embodiments, the third message is used to indicate that the support status of the PDU set processing has not changed.

[0281] In some embodiments, the third message is used to indicate that the support status of the PDU set processing is changed from supported to not supported.

[0282] In some embodiments, the third message is used to indicate that the support status of the PDU set processing is changed from not supported to supported.

[0283] In some embodiments, the third message is used to indicate that the support state of the PDU set processing is changed from an activated state to a deactivated state.

[0284] In some embodiments, the third message is used to indicate that the support state of the PDU set processing is changed from a deactivated state to an activated state.

[0285] In some embodiments, the name of the third message is not limited, and it can be, for example, "subscription event report message" or the like.

[0286] In some embodiments, the supported state of the PDU set processing may also be referred to as the available state of the PDU set processing, and may be interchangeable with the available state of the PDU set processing.

[0287] In some embodiments, upon receiving the second subscription event notification sent by the second network element, the fourth network element sends a third message to the second network element.

[0288] In some embodiments, the fourth network element determines that a specified condition is met and sends a third message to the second network element.

[0289] The specified conditions include at least one of the following:

[0290] When a network element switch occurs, the fourth network element is the network element after the switch;

[0291] PDU set processing capability changes;

[0292] Changes in PDU set processing capabilities triggered by OAM configuration;

[0293] Changes in PDU set processing capabilities caused by triggering busy / idle time windows;

[0294] Changes in PDU set processing capabilities triggered by QoS notification control;

[0295] PDU set handles state changes;

[0296] PDU set processing status changes caused by OAM configuration triggers;

[0297] PDU set processing status changes caused by triggering when the time window is busy or idle;

[0298] PDU set processing state changes caused by QoS notification control triggering.

[0299] In the embodiment of the present disclosure, when it is determined that a network element switching occurs and the fourth network element is a switched network element, the fourth network element sends a third message to the second network element.

[0300] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing capability has changed.

[0301] In the embodiment of the present disclosure, when determining that the PDU set processing capability is changed due to the OAM configuration trigger, the fourth network element sends a third message to the second network element.

[0302] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing capability is changed due to a trigger based on the busy / idle time window.

[0303] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing capability is changed due to the QoS notification control trigger.

[0304] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing status has changed.

[0305] In the embodiment of the present disclosure, when determining that the PDU set processing state changes due to the OAM configuration trigger, the fourth network element sends a third message to the second network element.

[0306] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing state changes due to a trigger based on the busy / idle time window.

[0307] In the embodiment of the present disclosure, the fourth network element sends a third message to the second network element when determining that the PDU set processing state changes due to the QoS notification control trigger.

[0308] In some embodiments, the fourth network element receives the second subscription event notification sent by the second network element, and sends a third message to the second network element if it is determined that a specified condition is met.

[0309] It should be noted that the above embodiments are not exhaustive and are only examples of some embodiments. In the embodiments of the present disclosure, the specified conditions may also be other situations other than those shown in the above embodiments, and the embodiments of the present disclosure do not impose specific restrictions on this.

[0310] In some embodiments, the fourth network element sends a third message to the second network element, including: sending the third message to the second network element through the AMF, wherein the fourth network element is the RAN and the second network element is the SMF.

[0311] In an embodiment of the present disclosure, when the fourth network element is a RAN, the fourth network element sends a third message to the second network element, and the third message may be sent to the second network element through the AMF.

[0312] S205: The second network element sends a first message to the first network element.

[0313] In some embodiments, the first message is used to indicate capability information of PDU set processing.

[0314] In some embodiments, the first message is used to indicate the capability information of PDU set processing of any network function, or the first message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current service data flow is generated, or the first message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current session is generated, or the first message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current terminal is generated.

[0315] In some embodiments, the first message is used to indicate capability information of the RAN for PDU set processing.

[0316] In some embodiments, the first message is used to indicate capability information of the UPF's PDU set processing.

[0317] In some embodiments, the first message is used to indicate the PDU set processing capability of the integrated RAN and UPF to generate the PDU set processing capability information of the current service data flow.

[0318] In some embodiments, the first message is used to indicate the PDU set processing capability information of the current session generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0319] In some embodiments, the first message is used to indicate the PDU set processing capability information of the current terminal generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0320] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0321] In some embodiments, the first message is used to indicate a support status of PDU set processing.

[0322] In some embodiments, the first message is used to indicate that the support status of the PDU set processing is supported.

[0323] In some embodiments, the first message is used to indicate that the support status of the PDU set processing is not supported.

[0324] In some embodiments, the first message is used to indicate that the support status of the PDU set processing is an activated state.

[0325] In some embodiments, the first message is used to indicate that the support state of the PDU set processing is a deactivated state.

[0326] In some embodiments, the first message is used to indicate whether the support status of the PDU set processing has changed.

[0327] In some embodiments, the first message is used to indicate a change in the support status of the PDU set processing.

[0328] In some embodiments, the first message is used to indicate that the support status of the PDU set processing has not changed.

[0329] In some embodiments, the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported.

[0330] In some embodiments, the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported.

[0331] In some embodiments, the first message is used to indicate that the support state of the PDU set processing is changed from an activated state to a deactivated state.

[0332] In some embodiments, the first message is used to indicate that the support state of the PDU set processing is changed from a deactivated state to an activated state.

[0333] In some embodiments, the name of the first message is not limited, and it can be, for example, "subscription event report message" or the like.

[0334] In some embodiments, the supported state of the PDU set processing may also be referred to as the available state of the PDU set processing, and may be interchangeable with the available state of the PDU set processing.

[0335] In some embodiments, upon receiving the third message sent by the fourth network element, the second network element sends the first message to the first network element.

[0336] In some embodiments, the second network element activates PDU set QoS processing and sends a first message to the first network element. The first message is used to indicate capability information of the PDU set processing, that is, the first message is used to indicate that the support status of the PDU set processing is supported, or the first message is used to indicate that the support status of the PDU set processing has changed, or the first message is used to indicate that the support status of the PDU set processing has changed from not supported to supported.

[0337] In some embodiments, the second network element deactivates PDU set QoS processing and sends a first message to the first network element. The first message is used to indicate capability information of the PDU set processing, that is, the first message is used to indicate that the support status of the PDU set processing is not supported, or the first message is used to indicate that the support status of the PDU set processing has changed, or the first message is used to indicate that the support status of the PDU set processing has changed from supported to not supported.

[0338] In some embodiments, upon receiving the first subscription event notification sent by the first network element, the second network element sends a first message to the first network element.

[0339] In some embodiments, the first network element receives the first message sent by the second network element and initiates a session modification process; or initiates a session management policy association modification process.

[0340] In the embodiment of the present disclosure, the first network element may initiate a session modification process by receiving the first message sent by the second network element.

[0341] In the embodiment of the present disclosure, the first network element receives the first message sent by the second network element and may initiate a session management policy association modification process.

[0342] In some embodiments, the second network element sends a first message to the first network element to initiate a session management policy creation process, or initiates a session management policy modification process.

[0343] In the embodiment of the present disclosure, the second network element sends a first message to the first network element to initiate a session management policy creation process.

[0344] In the embodiment of the present disclosure, the second network element sends a first message to the first network element to initiate a session management policy modification process.

[0345] S206: The first network element sends a second message to the third network element.

[0346] In some embodiments, the second message is used to indicate capability information of PDU set processing.

[0347] In some embodiments, the second message is used to indicate the capability information of PDU set processing of any network function, or the second message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current service data flow is generated, or the second message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current session is generated, or the second message is used to indicate the capability information of PDU set processing of multiple network functions, and the capability information of PDU set processing of the current terminal is generated.

[0348] In some embodiments, the second message is used to indicate capability information of the RAN for PDU set processing.

[0349] In some embodiments, the second message is used to indicate capability information of the UPF's PDU set processing.

[0350] In some embodiments, the second message is used to indicate the PDU set processing capability information of the current service data flow generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0351] In some embodiments, the second message is used to indicate the PDU set processing capability information of the current session generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0352] In some embodiments, the second message is used to indicate the PDU set processing capability information of the current terminal generated by integrating the PDU set processing capabilities of the RAN and UPF.

[0353] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0354] In some embodiments, the second message is used to indicate a support status of the PDU set processing.

[0355] In some embodiments, the second message is used to indicate that the support status of the PDU set processing is supported.

[0356] In some embodiments, the second message is used to indicate that the support status of the PDU set processing is not supported.

[0357] In some embodiments, the second message is used to indicate that the support status of the PDU set processing is an activated state.

[0358] In some embodiments, the second message is used to indicate that the support state of the PDU set processing is a deactivated state.

[0359] In some embodiments, the second message is used to indicate whether the support status of the PDU set processing has changed.

[0360] In some embodiments, the second message is used to indicate a change in the support status of the PDU set processing.

[0361] In some embodiments, the second message is used to indicate that the support status of the PDU set processing has not changed.

[0362] In some embodiments, the second message is used to indicate that the support status of the PDU set processing is changed from supported to not supported.

[0363] In some embodiments, the second message is used to indicate that the support status of the PDU set processing is changed from not supported to supported.

[0364] In some embodiments, the second message is used to indicate that the support state of the PDU set processing is changed from an activated state to a deactivated state.

[0365] In some embodiments, the second message is used to indicate that the support state of the PDU set processing is changed from a deactivated state to an activated state.

[0366] In some embodiments, the name of the second message is not limited, and it can be, for example, "subscription event report message" or the like.

[0367] In some embodiments, the supported state of the PDU set processing may also be referred to as the available state of the PDU set processing, and may be interchangeable with the available state of the PDU set processing.

[0368] In some embodiments, upon receiving the first message sent by the second network element, the first network element sends a second message to the third network element.

[0369] Based on this, when the third network element is an AF, the first network element sends a second message to the third network element, which can be used to request new QoS requirements or trigger AF session modification.

[0370] In some embodiments, the first network element may send the second message to the third network element upon receiving the subscription request sent by the third network element.

[0371] S207: The first network element determines a PCC rule based on the first message.

[0372] It can be understood that the first network element receives the first message, and the first message is used to indicate capability information of PDU set processing. The first network element can determine the PCC rule based on the capability information of PDU set processing.

[0373] In some embodiments, the first network element determines the PCC rule based on the capability information processed by the PDU set, which may include at least one of the following:

[0374] In the absence of a current PCC rule, the first network element may generate a PCC rule that matches the capability information processed by the PDU set based on the capability information processed by the PDU set;

[0375] In the case where a current PCC rule exists, if the current PCC rule matches the capability information processed by the PDU set, the first network element may determine to continue using the current PCC rule and determine the PCC rule as the current PCC rule;

[0376] In the case where a current PCC rule exists, if the current PCC rule does not match the capability information processed by the PDU set, the first network element may determine to update the current PCC rule and determine that the PCC rule is an updated PCC rule.

[0377] In some embodiments, if the current PCC rule is generated based on the PDU set, and the capability information of the PDU set processing indicates support for the PDU set processing, it is determined that the current PCC rule matches the capability information of the PDU set processing.

[0378] In some embodiments, if the current PCC rule is generated based on PDU set, and the capability information of PDU set processing indicates that PDU set processing is not supported but PDU processing is supported, it is determined that the current PCC rule does not match the capability information of PDU set processing.

[0379] In some embodiments, if the current PCC rule is generated based on the PDU, and the capability information of the PDU set processing indicates that the PDU set processing is supported but not the PDU processing, it is determined that the current PCC rule does not match the capability information of the PDU set processing.

[0380] In some embodiments, if the current PCC rule is generated based on the PDU, and the capability information of the PDU set processing indicates that the PDU set processing is not supported but the PDU processing is supported, it is determined that the current PCC rule matches the capability information of the PDU set processing.

[0381] In some embodiments, the capability information of the PDU set processing includes a support status of the PDU set processing, and the capability information of the PDU set processing may indicate whether the PDU set processing is supported.

[0382] Exemplarily, when the support status of PDU set processing is supported, the capability information of PDU set processing may indicate that PDU set processing is supported; or when the support status of PDU set processing is not supported, the capability information of PDU set processing may indicate that PDU set processing is not supported.

[0383] It can be understood that the capability information of PDU set processing includes whether the support status of PDU set processing has changed, and the capability information of PDU set processing can indicate whether PDU set processing is supported based on the information of the change in the support status of PDU set processing.

[0384] Exemplarily, the support status of PDU set processing is changed from supporting PDU set processing to supporting PDU processing, and the capability information of PDU set processing may indicate that PDU set processing is not supported but PDU processing is supported; or the support status of PDU set processing is changed from supporting PDU processing to supporting PDUset processing, and the capability information of PDU set processing may indicate that PDU set processing is supported but PDU processing is not supported.

[0385] It should be noted that the above examples are only for illustration and are not intended to limit the embodiments of the present disclosure.

[0386] In some embodiments, the first message is used to indicate capability information of PDU set processing. Thus, the first network element determines the PCC rule based on the first message.

[0387] It can be understood that when determining the PCC rules, considering the capability information of PDU set processing can make the PCC rules match the capabilities of PDU set processing, avoiding the use of PCC rules generated based on PDU and carrying PDU QoS parameters for PDU set processing, or avoiding the use of PCC rules generated based on PDU set and carrying PDU set QoS parameters for PDU processing, which can ensure business continuity and improve service quality.

[0388] In some embodiments, the first network element receives a first message sent by the second network element, thereby determining a PCC rule based on the first message.

[0389] In some embodiments, the PCC rule includes a first PCC rule generated by a first network element. The first network element determines the PCC rule based on the first message, including:

[0390] determining that the first message is used to indicate support for PDU set processing, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0391] determining that the first message is used to indicate support for PDU processing and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0392] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0393] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0394] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0395] It is determined that the first message is used to indicate that the support of PDU set processing is changed to support of PDU processing, and no PCC rule currently exists, a PCC rule is determined to be generated, and a first PCC rule is determined.

[0396] In the embodiment of the present disclosure, the first network element determines to generate a PCC rule and determines a first PCC rule when determining that the first message is used to indicate support for PDU set processing and no PCC rule currently exists.

[0397] In the embodiment of the present disclosure, the first network element determines to generate a PCC rule and determines a first PCC rule when determining that the first message is used to indicate support for PDU processing and no PCC rule currently exists.

[0398] In the embodiment of the present disclosure, the first network element determines to generate a PCC rule and determines a first PCC rule when determining that the first message is used to indicate that the support status of PDU set processing is changed from not supported to supported and no PCC rule currently exists.

[0399] In the embodiment of the present disclosure, the first network element determines to generate a PCC rule and determines a first PCC rule when determining that the first message is used to indicate that the support status of PDU set processing has changed from supported to not supported and no PCC rule currently exists.

[0400] In the embodiment of the present disclosure, when the first network element determines that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing and no PCC rule currently exists, the first network element determines to generate a PCC rule and determines a first PCC rule.

[0401] In the embodiment of the present disclosure, the first network element determines to generate a PCC rule and determines a first PCC rule when determining that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing and no PCC rule currently exists.

[0402] It should be noted that the above embodiments are not exhaustive and are only examples of some embodiments. In the embodiments of the present disclosure, the first network element determines the first PCC rule based on the first message, and other methods other than those shown in the above embodiments may also be used. The embodiments of the present disclosure do not impose specific restrictions on this.

[0403] In some embodiments, the PCC rule includes a second PCC rule updated by the first network element. The first network element determines the PCC rule based on the first message, including:

[0404] determining that the first message is used to indicate support for PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0405] determining that the first message is used to indicate support for PDU processing, and the current PCC rule is generated based on the PDU set, determining to update the current PCC rule, and determining a second PCC rule; or

[0406] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0407] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0408] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0409] It is determined that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing, and the current PCC rule is generated based on the PDU set, it is determined to update the current PCC rule, and a second PCC rule is determined.

[0410] In the embodiment of the present disclosure, when the first network element determines that the first message is used to indicate support for PDU set processing and the current PCC rule is generated based on the PDU, it determines to update the current PCC rule and determines the second PCC rule.

[0411] In the embodiment of the present disclosure, when the first network element determines that the first message is used to indicate support for PDU processing and the current PCC rule is generated based on the PDU set, the first network element determines to update the current PCC rule and determines the second PCC rule.

[0412] In the embodiment of the present disclosure, when the first network element determines that the first message is used to indicate that the support status of PDU set processing has changed from non-support to support, and the current PCC rule is generated based on PDU, the first network element determines to update the current PCC rule and determines the second PCC rule.

[0413] In an embodiment of the present disclosure, when the first network element determines that the first message is used to indicate that the support status of PDU set processing has changed from supported to not supported and the current PCC rule is generated based on the PDU, the first network element determines to update the current PCC rule and determines the second PCC rule.

[0414] In the embodiment of the present disclosure, when the first network element determines that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing and the current PCC rule is generated based on PDU, it determines to update the current PCC rule and determines the second PCC rule.

[0415] In an embodiment of the present disclosure, when the first network element determines that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing, and the current PCC rule is generated based on the PDU set, the first network element determines to update the current PCC rule and determines the second PCC rule.

[0416] It should be noted that the above embodiments are not exhaustive and are only examples of some embodiments. In the embodiments of the present disclosure, the first network element determines the second PCC rule based on the first message, and other methods other than those shown in the above embodiments may be used. The embodiments of the present disclosure do not impose specific restrictions on this.

[0417] S208: The first network element sends the PCC rule to the second network element.

[0418] In the embodiment of the present disclosure, when the first network element determines the generated first PCC rule, the first network element may send the generated first PCC rule to the second network element.

[0419] In the embodiment of the present disclosure, when the first network element determines the updated second PCC rule, the first network element may send the updated second PCC rule to the second network element.

[0420] In some embodiments, the first network element determines the generated first PCC rule based on the first message sent by the second network element.

[0421] In some embodiments, the first network element determines an updated second PCC rule based on the first message sent by the second network element.

[0422] In some embodiments, the PCC rules sent by the first network element to the second network element are determined by the first network element based on the first message, and the first message is used to indicate the capability information of PDUset processing, so that the PCC rules can match the capability information of PDUset processing, thereby ensuring business continuity and improving service quality.

[0423] And because the first message is sent from the second network element to the first network element, the PCC rule can match the capability information of the PDUset processing determined by the second network element, thereby ensuring business continuity and improving service quality.

[0424] S209: The second network element determines a QoS rule according to the PCC rule.

[0425] In the embodiment of the present disclosure, the second network element may determine the QoS rule according to the PCC rule.

[0426] In some embodiments, the second network element receives the PCC rule sent by the first network element, and then determines the QoS rule according to the PCC rule.

[0427] In some embodiments, the PCC rules can match the capability information of the PDUset processing determined by the second network element. Based on this, the second network element determines the QoS rules according to the PCC rules. The determined QoS rules can also match the capability information of the PDUset processing determined by the second network element, which can ensure business continuity and improve service quality.

[0428] S210: The second network element sends the QoS rule to the fourth network element.

[0429] In the embodiment of the present disclosure, the second network element may send QoS rules to the fourth network element.

[0430] In some embodiments, the second network element determines the QoS rule according to the PCC rule sent by the first network element.

[0431] It can be understood that the second network element determines the QoS rules based on the PCC rules, which can match the capability information of the PDUset processing determined by the second network element. Therefore, the second network element sends the QoS rules to the fourth network element, which can match the PDUset processing process corresponding to the capability information of the PDUset processing, thereby ensuring business continuity and improving service quality.

[0432] In some embodiments, the second network element sends the QoS rules to the fourth network element through the AMF, and the fourth network element is the RAN.

[0433] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0434] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0435] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0436] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0437] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0438] The communication method involved in the embodiment of the present disclosure may include at least one of S201 to S210. For example, S201 can be implemented as an independent embodiment, S202 can be implemented as an independent embodiment, S203 can be implemented as an independent embodiment, S204 can be implemented as an independent embodiment, S205 can be implemented as an independent embodiment, S206 can be implemented as an independent embodiment, S207 can be implemented as an independent embodiment, S208 can be implemented as an independent embodiment, S209 can be implemented as an independent embodiment, and S210 can be implemented as an independent embodiment.

[0439] S201+S206 can be implemented as an independent embodiment, S202+S205 can be implemented as an independent embodiment, S203+S204 can be implemented as an independent embodiment, S205+S207 can be implemented as an independent embodiment, S205+S207+S208 can be implemented as an independent embodiment, S205+S207+S208+S209 can be implemented as an independent embodiment, S205+S207+S208+S209+S210 can be implemented as an independent embodiment, and S203+S204+S205+S207+S208+S209+S210 can be implemented as an independent embodiment, but are not limited to this.

[0440] In some embodiments, S206 and S207 may be executed in an interchanged order or simultaneously.

[0441] In some embodiments, S201, S202, S203, S204, S206, S207, S208, S209, and S210 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0442] In some embodiments, S201, S202, S203, S204, S206, S208, S209, and S210 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0443] In some embodiments, S201, S202, S203, S204, S206, S209, and S210 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0444] In some embodiments, S201, S202, S203, S204, S206, and S210 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0445] In some embodiments, S201, S202, S203, S204, and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0446] In some embodiments, S201, S202, S203, and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0447] In some embodiments, S201, S202, and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0448] In some embodiments, S201 and S206 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0449] In some embodiments, S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0450] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0451] FIG3A is a flow chart of a rule generation method according to an embodiment of the present disclosure. As shown in FIG3A , the method is executed by a first network element, and the method includes:

[0452] S301A, obtain the first message.

[0453] Among them, the optional implementation of S301A can refer to the optional implementation of S205 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0454] In some embodiments, the first network element receives the first message from the second network element, but is not limited thereto and may also receive the first message sent by other entities.

[0455] In some embodiments, the first network element obtains a first message specified by a protocol.

[0456] In some embodiments, the first network element obtains the first message from an upper layer(s).

[0457] In some embodiments, the first network element performs processing to obtain the first message.

[0458] In some embodiments, S301A is omitted, and the first network element autonomously implements the function indicated by the first message, or the above function is default or by default.

[0459] In some embodiments, the first message is used to indicate capability information of PDUset processing.

[0460] In some embodiments, the capability information of the PDU set processing includes: the support status of the PDU set processing and / or whether the support status of the PDU set processing has changed.

[0461] S302A, determine PCC rules.

[0462] Among them, the optional implementation of S302A can refer to the optional implementation of S207 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0463] In some embodiments, the first network element determines a PCC rule based on the first message.

[0464] In some embodiments, the PCC rule includes a first PCC rule generated by a first network element. The first network element determines the PCC rule based on the first message, including:

[0465] determining that the first message is used to indicate support for PDU set processing, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0466] determining that the first message is used to indicate support for PDU processing and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0467] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0468] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0469] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and that no PCC rule currently exists, determining to generate a PCC rule, and determining a first PCC rule; or

[0470] It is determined that the first message is used to indicate that the support of PDU set processing is changed to support of PDU processing, and no PCC rule currently exists, a PCC rule is determined to be generated, and a first PCC rule is determined.

[0471] In some embodiments, the PCC rule includes a second PCC rule updated by the first network element. The first network element determines the PCC rule based on the first message, including:

[0472] determining that the first message is used to indicate support for PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0473] determining that the first message is used to indicate support for PDU processing, and the current PCC rule is generated based on the PDU set, determining to update the current PCC rule, and determining a second PCC rule; or

[0474] determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0475] determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0476] determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining a second PCC rule; or

[0477] It is determined that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing, and the current PCC rule is generated based on the PDU set, it is determined to update the current PCC rule, and a second PCC rule is determined.

[0478] In some embodiments, the first network element determines a PCC rule based on the first message and initiates a session modification procedure; or initiates a session management policy association modification procedure.

[0479] S303A, sending PCC rules.

[0480] Among them, the optional implementation of S303A can refer to the optional implementation of S208 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0481] In some embodiments, the first network element sends the PCC rule to the second network element, but is not limited thereto. The PCC rule may also be sent to other entities.

[0482] Optionally, the PCC rule is used by the second network element to determine the QoS rule. Optional implementations thereof can be found in the optional implementations of S209 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0483] The communication method involved in the embodiments of the present disclosure may include at least one of S301A to S303A. For example, S301A may be implemented as an independent embodiment, S302A may be implemented as an independent embodiment, S303A may be implemented as an independent embodiment, S301A+S302A may be implemented as independent embodiments, and S301A+S302A+S303A may be implemented as independent embodiments, but the present invention is not limited thereto.

[0484] In some embodiments, S303A is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0485] FIG3B is a flow chart of a rule generation method according to an embodiment of the present disclosure. As shown in FIG3B , the above embodiment is executed by a first network element, and the above method includes:

[0486] S301B, obtain the first message.

[0487] Among them, the optional implementation of S301B can refer to the optional implementation of S205 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0488] S302B, send a second message.

[0489] Among them, the optional implementation of S302B can refer to the optional implementation of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0490] In some embodiments, after obtaining the first message, the first network element may send the second message.

[0491] In some embodiments, the first network element sends the second message to the third network element, but is not limited thereto, and the second message may also be sent to other entities.

[0492] In some embodiments, the second message is used by the third network element to provide new QoS requirements or trigger AF session modification.

[0493] S303B, determine PCC rules.

[0494] Among them, the optional implementation of S303B can refer to the optional implementation of S207 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0495] Among them, the optional implementation methods of S301B and S303B can refer to S205 and S207 in Figure 2, the optional implementation methods of S301A and S302A in Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0496] The communication method involved in the embodiments of the present disclosure may include at least one of S301B to S303B. For example, S301B may be implemented as an independent embodiment, S302B may be implemented as an independent embodiment, S303B may be implemented as an independent embodiment, S301B + S302B may be implemented as an independent embodiment, and S301B + S303B may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0497] In some embodiments, S302B and S303B may be executed in an interchanged order or simultaneously.

[0498] In some embodiments, S302B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0499] In some embodiments, S303B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0500] In the embodiment of the present disclosure, S302B may be combined with S301A to S303A of FIG. 3A .

[0501] FIG3C is a flow chart of a rule generation method according to an embodiment of the present disclosure. As shown in FIG3C , the method is executed by a first network element, and the method includes:

[0502] S301C, obtain subscription request.

[0503] Among them, the optional implementation of S301C can refer to the optional implementation of S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0504] In some embodiments, the first network element receives a subscription request sent by a third network element, but is not limited thereto and may also receive a subscription request sent by other entities.

[0505] In some embodiments, the first network element obtains a subscription request specified by a protocol.

[0506] In some embodiments, the first network element obtains a subscription request from an upper layer(s).

[0507] In some embodiments, the first network element performs processing to obtain a subscription request.

[0508] In some embodiments, S301C is omitted, and the first network element autonomously implements the function indicated by the subscription request, or the above function is default or by default.

[0509] S302C: Send a first subscription event notification.

[0510] Among them, the optional implementation of S302C can refer to the optional implementation of S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, and will not be repeated here.

[0511] In some embodiments, the first network element sends the first subscription event notification to the second network element, but is not limited thereto, and the first subscription event notification may also be sent to other entities.

[0512] In some embodiments, the first subscription event notification is used by the second network element to send a second subscription event notification to the fourth network element. Optional implementations thereof can be found in the optional implementations of S203 in FIG2 and other related parts in the embodiments involved in FIG2 , which will not be described in detail here.

[0513] In some embodiments, the first subscription event notification is associated with a policy control request trigger.

[0514] The communication method involved in the embodiment of the present disclosure may include at least one of S301C to S302C. For example, S301C may be implemented as an independent embodiment, and S302C may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0515] In some embodiments, S301C is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0516] In the embodiment of the present disclosure, S301C or S302C may be implemented in combination with S301A to S303A of FIG. 3A , wherein S301C or S302C is executed before S301A.

[0517] In the embodiment of the present disclosure, S301C or S302C may be implemented in combination with S301B to S303B of FIG. 3B , wherein S301C or S302C is executed before S301B.

[0518] In the embodiment of the present disclosure, S301C or S302C may be implemented in combination with S301A to S303A of FIG. 3A and S301B to S303B of FIG. 3B , wherein S301C or S302C is executed before S301A and S301B.

[0519] FIG4A is a flow chart of a rule generation method according to an embodiment of the present disclosure. As shown in FIG4A , the method is executed by the second network element, and the method includes:

[0520] S401A, sending a first message.

[0521] Among them, the optional implementation of S401A can refer to the optional implementation of S205 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0522] In some embodiments, the second network element sends the first message to the first network element, but is not limited thereto, and the first message may also be sent to other entities.

[0523] Optionally, the first message is used by the first network element to determine a PCC rule. Optional implementations thereof may refer to the optional implementations of S207 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0524] Optionally, the first message is used by the first network element to send the second message to the third network element. For optional implementations, please refer to the optional implementations of S206 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0525] S402A, obtain PCC rules.

[0526] Among them, the optional implementation of S402A can refer to the optional implementation of S208 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0527] In some embodiments, the second network element receives the PCC rule sent by the first network element, but is not limited thereto and may also receive the PCC rule sent by other entities.

[0528] In some embodiments, the second network element obtains a PCC rule specified by a protocol.

[0529] In some embodiments, the second network element obtains the PCC rule from upper layer(s).

[0530] In some embodiments, the second network element performs processing to obtain the PCC rule.

[0531] In some embodiments, S402A is omitted, and the access network device 102 determines the PCC rule on its own, or the above function is default or by default.

[0532] S403A, determine QoS rules.

[0533] Among them, the optional implementation of S403A can refer to the optional implementation of S209 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0534] In some embodiments, the second network element may determine the QoS rule according to the PCC rule.

[0535] S404A, sending QoS rules.

[0536] Among them, the optional implementation of S404A can refer to the optional implementation of S210 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0537] In some embodiments, the second network element sends the QoS rule to the fourth network element, but is not limited thereto, and the QoS rule may also be sent to other entities.

[0538] The communication method involved in the embodiments of the present disclosure may include at least one of S401A to S404A. For example, S401A may be implemented as an independent embodiment, S402A may be implemented as an independent embodiment, S403A may be implemented as an independent embodiment, S404A may be implemented as an independent embodiment, S401A+S402A may be implemented as an independent embodiment, and S401A+S402A+S403A may be implemented as independent embodiments, but the present invention is not limited thereto.

[0539] In some embodiments, S402A, S403A, and S404A are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0540] In some embodiments, S403A and S404A are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0541] In some embodiments, S404A is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0542] FIG4B is a flow chart of a rule generation method according to an embodiment of the present disclosure. As shown in FIG4B , the method is executed by the second network element, and the method includes:

[0543] S401B, obtain a first subscription event notification.

[0544] Among them, the optional implementation of S401B can refer to the optional implementation of S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0545] In some embodiments, the second network element receives the first subscription event notification from the first network element, but is not limited thereto and may also receive the first subscription event notification sent by other entities.

[0546] In some embodiments, the second network element obtains a first subscription event notification specified by a protocol.

[0547] In some embodiments, the second network element obtains the first subscription event notification from an upper layer(s).

[0548] In some embodiments, the second network element performs processing to obtain the first subscription event notification.

[0549] In some embodiments, S401B is omitted, and the second network element autonomously implements the function indicated by the first subscription event notification, or the above function is default or by default.

[0550] S402B: Send a second subscription event notification.

[0551] Among them, the optional implementation of S402B can refer to the optional implementation of S203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0552] In some embodiments, the second network element sends the second subscription event notification to the fourth network element, but is not limited thereto, and the second subscription event notification may also be sent to other entities.

[0553] In some embodiments, the second subscription event notification is used for the fourth network element to send a third message to the second network element. Optional implementations thereof can be found in the optional implementations of S204 of FIG2 and other related parts of the embodiment involved in FIG2 , which will not be described in detail here.

[0554] S403B, obtain the third message.

[0555] Among them, the optional implementation of S403B can refer to the optional implementation of S204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0556] In some embodiments, the second network element receives the third message from the fourth network element, but is not limited thereto and may also receive the third message sent by other entities.

[0557] In some embodiments, the second network element obtains a third message specified by the protocol.

[0558] In some embodiments, the second network element obtains the third message from upper layer(s).

[0559] In some embodiments, the second network element performs processing to obtain the third message.

[0560] In some embodiments, S401B is omitted, and the second network element autonomously implements the function indicated by the third message, or the above function is default or by default.

[0561] The communication method involved in the embodiments of the present disclosure may include at least one of S401B to S303B. For example, S401B may be implemented as an independent embodiment, S402B may be implemented as an independent embodiment, S403B may be implemented as an independent embodiment, S401B+S402B may be implemented as an independent embodiment, and S402B+S403B may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0562] In some embodiments, S402B and S403B are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0563] In some embodiments, S401B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0564] In some embodiments, S401B and S403B are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0565] In some embodiments, S403B is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0566] In the embodiment of the present disclosure, S401B to S403B may be implemented in combination with S401A to S404A of FIG. 4A , wherein S401B to S403B are executed before S401A.

[0567] FIG5A is an interactive diagram of a rule generation method according to an embodiment of the present disclosure. As shown in FIG5A , the method is executed by a fourth network element, and the method includes:

[0568] S501A, obtain a second subscription event notification.

[0569] Among them, the optional implementation of S501A can refer to the optional implementation of S203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0570] In some embodiments, the fourth network element receives the second subscription event notification sent by the second network element, but is not limited thereto, and may also receive the second subscription event notification sent by other entities.

[0571] In some embodiments, the fourth network element obtains a second subscription event notification specified by the protocol.

[0572] In some embodiments, the fourth network element obtains the second subscription event notification from an upper layer(s).

[0573] In some embodiments, the fourth network element performs processing to obtain the second subscription event notification.

[0574] In some embodiments, S501A is omitted, and the fourth network element autonomously implements the function indicated by the second subscription event notification, or the above function is default or by default.

[0575] S502A, sending a third message.

[0576] Among them, the optional implementation of S502A can refer to the optional implementation of S204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0577] In some embodiments, the fourth network element sends the third message to the second network element, but is not limited thereto, and the third message may also be sent to other entities.

[0578] In some embodiments, the third message is used by the second network element to send the first message to the first network element. For optional implementations thereof, please refer to the optional implementations of S205 in FIG2 and other related parts in the embodiments involved in FIG2 , which will not be described in detail here.

[0579] The communication method involved in the embodiments of the present disclosure may include at least one of S501A to S502A. For example, S501A may be implemented as an independent embodiment, and S502A may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0580] In some embodiments, S501A is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0581] FIG5B is an interactive diagram of a rule generation method according to an embodiment of the present disclosure. As shown in FIG5B , the method is executed by a fourth network element, and the method includes:

[0582] S501B: Obtain a second subscription event notification.

[0583] Among them, the optional implementation of S501B can refer to the optional implementation of S203 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0584] S502B, send a third message.

[0585] Among them, the optional implementation of S502B can refer to the optional implementation of S204 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0586] S503B, obtain QoS rules.

[0587] Among them, the optional implementation of S503A can refer to the optional implementation of S210 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0588] In some embodiments, the fourth network element receives the QoS rules sent by the second network element, but is not limited thereto and may also receive QoS rules sent by other entities.

[0589] In some embodiments, the fourth network element obtains QoS rules specified by the protocol.

[0590] In some embodiments, the fourth network element obtains QoS rules from upper layer(s).

[0591] In some embodiments, the fourth network element performs processing to obtain the QoS rules.

[0592] In some embodiments, S501A is omitted, and the fourth network element autonomously implements the function indicated by the QoS rule, or the above function is default or by default.

[0593] The communication method involved in the embodiments of the present disclosure may include at least one of S501B to S503B. For example, S501B may be implemented as an independent embodiment, S502B may be implemented as an independent embodiment, and S503B may be implemented as an independent embodiment, but are not limited thereto.

[0594] In some embodiments, S501B and S503B are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0595] To facilitate understanding of the embodiments of the present disclosure, the following exemplary embodiments are provided.

[0596] If the policy control request trigger is met, the SMF can initiate a session management (SM) policy association modification process.

[0597] In one possible implementation, the policy control request trigger may be a PDU set processing availability change. The SMF determines that the policy control request trigger is met and may initiate an SM policy association modification process, for example, by sending an event notification report of the PDU set processing availability change to the PCF.

[0598] In another possible implementation, the policy control request trigger may be a PDU set processing support status change. The SMF determines that the policy control request trigger is met and may initiate an SM policy association modification process, for example, by sending an event notification report of a PDU set processing support status change to the PCF.

[0599] It can be understood that if the policy control request trigger is met, the second network element can initiate a session management (SM) policy association modification process, wherein the first subscription event notification is related to the policy control request trigger, and the second network element receives the first subscription event notification sent by the first network element, which can be used as a condition for satisfying the policy control request trigger.

[0600] Exemplarily, when the first subscription event notification is used to obtain support status information for PDU set processing, the second network element receives the first subscription event notification sent by the first network element, and can determine that the policy control request trigger is satisfied, and further determine to execute the acquisition of support status information for PDU set processing.

[0601] For example, when the first subscription event notification is used to obtain PDU set support status change information, the second network element receives the first subscription event notification sent by the first network element, and can determine that when the PDU set support status changes, the policy control request trigger is satisfied, and then determine to execute the support status information for obtaining the PDU set processing.

[0602] Exemplarily, as shown in Table 1 above, access is made to an independent policy control request trigger related to the SMF.

[0603] In an exemplary embodiment, as shown in FIG6A , description is given by taking the first network element being a PCF, the second network element being an SMF, the third network element being an AF, and the fourth network element being a RAN or a UPF as an example.

[0604] If the policy control request trigger is met, the SMF can initiate the SM policy association modification process. The SMF sends the first message to the PCF (event notification report of PDU set processing availability change or support status change (e.g. PDU set processing availability / support change))

[0605] As shown in Figure 6A, for local breakout roaming, interaction with the home public land mobile network (HPLMN) is not used (e.g., step 2). In local breakout roaming, the visited-PCF (V-PCF) interacts with the UDR of the visited public land mobile network (VPLMN).

[0606] 1. When the policy control request triggering condition is met, the SMF requests to update (Npcf session management (SM) policy control update (Npcf_SMPolicyControl_update)) the SM policy association, and provides information about the conditions that have been met, and sends a first message to the PCF.

[0607] In some embodiments, before the SMF sends the first message to the PCF, the SMF sends a second subscription event notification (an event notification report of subscribing to the PDU Set processing availability change or support status change) to the RAN or UPF; (the event notification may be an SMF subscription effective, or a system default setting that is always effective. If the default setting is always effective, the SMF does not need to actively subscribe, and the event is valid throughout the life cycle of the session);

[0608] When the SMF receives the third message sent by the RAN or UPF (i.e., the event report of the PDU Set processing availability change or support status change), it sends it to the PCF to trigger the session management policy creation or modification process.

[0609] 2. When the AF has subscribed to an event that is satisfied due to a report from the SMF, the PCF reports the event to the AF or the Time Sensitive Communication and Time Synchronization Function (TSCTSF) by calling the Npcf_PolicyAuthorization_Notify service operation and sends a second message to the AF.

[0610] If PCF initiates an availability change subscription based on a subscription request received from AF, PCF sends a second message (i.e., PDU Set processing availability change or support status change event report) to AF after receiving the first message sent by SMF (PDU Set processing availability change or support status change event report).

[0611] 3. If the PCF determines that a change to the policy counter status report is required, it may use the initial, intermediate, or final spending limit report retrieval process to change the subscribed policy counter list.

[0612] 4. PCF makes a policy decision: PCF may determine that updated or new policy information needs to be sent to SMF, that is, PCF may determine PCC rules based on the first message.

[0613] Furthermore, after receiving the event report of PDU Set processing availability change or support status change from SMF, PCF generates or updates PCC rules, initiates the session modification process, and carries the updated QoS policy to SMF.

[0614] If the SMF reports the cumulative usage of the PDU session in step 1, the PCF deducts this value from the remaining allowed usage of the subscriber, DNN and S-NSAI in the UDR by calling the Nudr_DM_Update (subscriber permanent identifier (SUPI), downlink data notification (DDN), single network slice selection assistance information (S-NSSAI), policy data, remaining allowed usage data, update data) service operation.

[0615] If the SMF reports the cumulative usage of MK in step 1, the PCF deducts this value from the remaining allowed usage of MK in the UDR by calling the Nudr_DM_Update(SUPI, DNN, s-NSSAI, Policy Data, Remaining Allowed Usage Data, Update Data (including MK)) service operation.

[0616] When a new PCF instance is selected in step 1, the new PCF should call the Nbsf_Management_Update service operation to update the binding information in the Bootstrapping Server Function (BSF).

[0617] In non-roaming situations, the PCF can subscribe to analytics from the Network Data Analytic Function (NWDAF).

[0618] In home-routed roaming scenarios, the H-PCF ensures that the QoS constraints provided by the VPLMN are taken into account.

[0619] It should be noted that for local breakout roaming, the PDU session policy control subscription information and remaining allowed use subscription information for monitoring control are not available in the V-UDR, and the V-PCF uses locally configured information according to the roaming agreement with the HPLMN operator.

[0620] 5. The PCF replies with an Npcf_SMPolicyControl_Update response, i.e., sends the PCC rules to the SMF, which contains the updated policy information about the PDU session determined in step 4.

[0621] In an exemplary embodiment, as shown in FIG6B , an AF session is set up using the required QoS procedures.

[0622] 1. AF sends the PDU set that handles availability / support changes to the 5GC (NEF / PCF). The AF can provide the PDU set that handles availability / support changes to the NEF / PCF during the AF QoS request / update procedure.

[0623] Alternatively, it may be indicated which NF (e.g. RAN or UPF) will send the report, and how the report is to be sent to the AF respectively (via SMF / PCF / AF (directly or via NEF), via UPF / SMF / PCF / AF (directly or via NEF), via UPF / AF (directly or via NEF)).

[0624] Optionally, it carries XRM service information, identifying the XRM service data flow or data flow group (e.g., multimode service ID), terminal address / terminal identifier, AF identifier application ID, flow description, DNN, s-NSSAI, QoS parameters, and other corresponding information. Here, the multimode service ID can be used to identify all flows in the XRM service group.

[0625] 2. The NEF authorizes the AF request. If the AF is untrusted, the NEF sends the AF request to the PCF. (Optionally, the NEF performs relevant mappings, including mapping the XRM service identifier (AF-Service-Identifier) ​​to the DNN and S-NSSAI, mapping external applications to CN application identifiers; and mapping external UE identifiers to CN internal UE identifiers (such as SUPI) based on UDM subscription information, as well as mapping external to internal XRM service group identifiers based on UDM subscription information.)

[0626] 3. The NEF authorizes the AF request and determines whether to call the TSCTSF or contact the PCF directly based on the parameters provided by the AF. (These signaling steps are used to set up the AF session with the required QoS procedures.) The PCF receives the attributes provided by the AF from the NEF or TSCTSF.

[0627] The NEF triggers the Npcf_PolicyAuthorization_Create request and sends the AF request to the PCF, carrying the QoS requirement information for the PCF policy decision. The message also carries the PDU set indicating the processing availability / support changes of the corresponding SDF.

[0628] 4. PCF makes policy decisions. The PCF may determine that updated or new policy information needs to be sent to the SMF.

[0629] The PCF considers the PDU set for handling availability / support changes to determine the PCC rules. The PCF sends the PDU set for handling availability / support changes to the SMF to subscribe to the trigger report.

[0630] 5. PCF responds to NEF with Npcf_Policy Authorization_Create response.

[0631] 6. NEF sends a Nnef_AFsessionWithQoS_Create response message to AF, which carries the Result message and indicates whether the request is authorized.

[0632] 7. PCF initiates SM policy association modification request to SMF (handling availability / support changed PDU set).

[0633] PCF subscribes to the event notification of PDU Set processing availability (or change) or support status (or change) from SMF. The event subscription notification is used to obtain PDU Set processing availability or support status information or change information; the event notification may be related to a policy control request trigger.

[0634] Furthermore, the event notification may be effective when the PCF subscribes, or the system default setting may always be effective (in this case, there is no need for the PCF to actively subscribe, and the event is always effective during the session life cycle).

[0635] Furthermore, the PCF subscribes to the event notification of the PDU Set processing availability change or support status change from the SMF based on the AF / NEF regulations and / or operator policies (such as local or OAM configuration). If the PCF initiates the availability change subscription based on the AF / NEF regulations (the PCF receives the subscription request from the AF), then after receiving the event report of the PDU Set processing availability change or support status change from the SMF, the PCF sends the event report of the PDU Set processing availability change or support status change to the AF.

[0636] Furthermore, after receiving the event report of PDU Set processing availability change or support status change from SMF, PCF generates or updates PCC rules, initiates the session modification process, and carries the updated QoS policy to SMF.

[0637] 8. SMF replies to PCF with an SM policy association modification response.

[0638] 9. SMF initiates N4 session modification request to UPF (handling availability / support changed PDU set).

[0639] SMF subscribes to the RAN or UPF for event notification reports on PDU Set processing availability changes or support status changes; (the event notification can be effective when the SMF subscription is enabled, or it can be always effective when the system default setting is enabled. If the default setting is always effective, the SMF does not need to actively subscribe, and the event is valid throughout the life cycle of the session).

[0640] 10. UPF responds to SMF.

[0641] 11. For the modification requested by SMF, SMF calls Namf_Communication_N1N2MessageTransfer([N2SM information](PDU session ID, QoS flow ID (QFI), QoS profile), N1SM container).

[0642] 12. AMF may send N2([SM information received by N2 from SMF], NAS message(PDU session ID, N1SM container(PDU session modification command)) message to (R)AN.

[0643] SMF subscribes to the RAN or UPF for event notification reports on PDU Set processing availability changes or support status changes; (the event notification can be effective when the SMF subscription is enabled, or it can be always effective when the system default setting is enabled. If the default setting is always effective, the SMF does not need to actively subscribe, and the event is valid throughout the life cycle of the session).

[0644] 14. The (R)AN may confirm the N2PDU session request by sending an N2PDU session confirm message to the AMF.

[0645] 15. AMF forwards the N2SM information received from AN to SMF through the Nsmf_PDUSession_UpdateSMContext service operation.

[0646] 16. SMF replies with Nsmf_PDUSession_UpdateSMContext response.

[0647] 17-18. SMF can update the N4 session of the UPF involved in the PDU session modification by sending an N4 session modification request message to the UPF.

[0648] The UPF / RAN performs event monitoring and sends a monitoring report to the SMF after receiving the subscribed event change:

[0649] UPF / RAN:

[0650] When the PDU Set processing availability / support state capability / status of the RAN or UPF changes (e.g. from not supported to supported, or from supported to not supported), the RAN or UPF sends the report to the SMF, carrying the PDU Set processing availability / support state capability / status change (and or carrying the PDU Set processing support state, which indicates the support state of the current PDU Set processing of the NF (RAN / UPF), supported or not supported);

[0651] Furthermore, the change in the RAN or UPF PDU set processing capability or status may be at least one of the following: RAN or UPF switching, where the PDU set processing capability of the new RAN or UPF is different from that of the RAN or UPF before the change (e.g., after the switching process); or the RAN or UPF remains unchanged, but the PDU set processing capability / status changes (e.g., PDU set processing capability / status changes caused by OAM configuration triggering or other event triggering, supported or not supported, such as triggering based on time window, busy or idle time, triggering based on related network status events such as QoS notification control, etc.)

[0652] In an exemplary embodiment, as shown in FIG6C , the PDU session modification process.

[0653] 2. The SMF may need to report some subscribed events to the PCF by executing the SMF-initiated SM Policy Association Modification process. (For example, the event notification of PDU Set processing availability (or change) or support status (or change) in Figure 6A ); Optionally, the SMF notification report can trigger the PCF to initiate a session modification, update the corresponding PCC rules and QoS policy information, and send it to the SMF and UPF / RAN.

[0654] The remaining steps:

[0655] - The rest of the session modification process follows the session creation process of the relevant technology;

[0656] -Event notifications related to PDU Set processing availability (or changes) or support status (or changes) (e.g., subscription, monitoring, reporting, and related descriptions of PDU Set processing availability / support changes, as described in Figures 6A and 6B).

[0657] The embodiments of the present disclosure also propose an apparatus for implementing any of the above methods. For example, an apparatus is proposed, comprising units or modules for implementing each step performed by a network device (e.g., a first network element, a second network element, a third network element, a fourth network element, etc.) in any of the above methods.

[0658] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0659] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0660] FIG7A is a schematic diagram of the structure of a first network element proposed in an embodiment of the present disclosure. As shown in FIG7A , the first network element 10 may include at least one of a transceiver module 11 and a processing module 12 .

[0661] In some embodiments, the transceiver module 11 is configured to receive a first message sent by a second network element, wherein the first message is used to indicate capability information of PDUset processing; and the processing module 12 is configured to determine a PCC rule based on the first message.

[0662] The transceiver module 11 is configured to execute at least one of the communication steps (e.g., S201 to S210, but not limited thereto) such as sending and / or receiving performed by the first network element 10 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S201 to S210, but not limited thereto) performed by the first network element 10 in any of the above methods, and will not be described in detail here.

[0663] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0664] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0665] FIG7B is a schematic diagram of the structure of the second network element proposed in an embodiment of the present disclosure. As shown in FIG7B , the second network element 20 may include: at least one of a transceiver module 21 and a processing module 22 .

[0666] In some embodiments, the transceiver module 21 is configured to send a first message to the first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine a PCC rule.

[0667] The transceiver module 21 is configured to execute at least one of the communication steps (e.g., S201 to S210, but not limited thereto) such as sending and / or receiving performed by the second network element 20 in any of the above methods, and will not be described in detail here. Optionally, the processing module 22 is configured to execute at least one of the other steps (e.g., S201 to S210, but not limited thereto) performed by the second network element 20 in any of the above methods, and will not be described in detail here.

[0668] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0669] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0670] FIG7C is a schematic diagram of the structure of the fourth network element proposed in an embodiment of the present disclosure. As shown in FIG7C , the fourth network element 30 may include: at least one of a transceiver module 31 and a processing module 32 .

[0671] In some embodiments, the above-mentioned transceiver module 31 is used to send a third message to the second network element, wherein the third message is used to indicate the capability information of PDU set processing, and the third message is used for the second network element to send a first message to the first network element, and the first message is used to indicate the capability information of PDU set processing, and the first message is used for the first network element to determine the PCC rule.

[0672] The transceiver module 31 is configured to execute at least one of the communication steps (e.g., S201 to S210, but not limited thereto) such as sending and / or receiving performed by the fourth network element 30 in any of the above methods, and will not be described in detail here. Optionally, the processing module 32 is configured to execute at least one of the other steps (e.g., S201 to S210, but not limited thereto) performed by the fourth network element 30 in any of the above methods, and will not be described in detail here.

[0673] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0674] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0675] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a first network element, a second network element, or a fourth network element, or can be a chip, a chip system, or a processor that supports the first network element, the second network element, or the fourth network element in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0676] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0677] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, S201 to S210, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, S201 to S210, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be interchangeable, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. may be interchangeable, and the terms receiver, receiving unit, receiver, receiving circuit, etc. may be interchangeable.

[0678] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0679] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0680] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0681] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0682] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0683] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., S201-S210, but not limited thereto) in the above method, such as sending and / or receiving. For example, the interface circuit 8202 performing the communication steps (e.g., S201-S210, but not limited thereto) in the above method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., S201-S210, but not limited thereto).

[0684] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0685] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0686] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0687] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0688] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0689] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A rule generation method, characterized in that: The method is performed by a first network element and includes: Receiving a first message sent by a second network element, wherein the first message is used to indicate capability information of a protocol data unit PDU set processing; Based on the first message, a policy and charging control (PCC) rule is determined.

2. The method according to claim 1, characterized in that The capability information processed by the PDU set includes at least one of the following: Support status of PDU set processing; Whether the support status of PDU set processing has changed.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Send the PCC rule to the second network element.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Initiate a session modification process; or Initiate the session management policy association modification process.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Send a first subscription event notification to the second network element, wherein the first subscription event notification is used to obtain capability information of the PDU set processing.

6. The method according to claim 5, characterized in that The first subscription event notification is related to a policy control request trigger.

7. The method according to claim 5 or 6, characterized in that The sending a first subscription event notification to the second network element includes: sending the first subscription event notification to the second network element according to local configuration; or The first subscription event notification is sent to the second network element according to the operation management and maintenance (OAM) configuration.

8. The method according to claim 5 or 6, characterized in that The method further comprises: A subscription request sent by a third network element is received, wherein the subscription request is used to request capability information of PDU set processing.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: A second message is sent to a third network element, wherein the second message is used to indicate capability information of PDU set processing.

10. The method according to any one of claims 1 to 9, characterized in that The PCC rule includes a first PCC rule generated by the first network element, and the determining the PCC rule based on the first message includes: determining that the first message is used to indicate support for PDU set processing, and currently no PCC rule exists, determining to generate a PCC rule, and determining the first PCC rule; or determining that the first message is used to indicate support for PDU processing, and currently no PCC rule exists, determining to generate a PCC rule, and determining the first PCC rule; or determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and that no PCC rule currently exists, determining to generate a PCC rule, and determining the first PCC rule; or determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and that no PCC rule currently exists, determining to generate a PCC rule, and determining the first PCC rule; or determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and that no PCC rule currently exists, determining to generate a PCC rule, and determining the first PCC rule; or It is determined that the first message is used to indicate that the support of PDU set processing is changed to support of PDU processing, and there is no PCC rule currently, it is determined to generate a PCC rule, and the first PCC rule is determined.

11. The method according to any one of claims 1 to 9, characterized in that The PCC rule includes a second PCC rule updated by the first network element, and the determining the PCC rule based on the first message includes: determining that the first message is used to indicate support for PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining the second PCC rule; or determining that the first message is used to indicate support for PDU processing, and that a current PCC rule is generated based on a PDU set, determining to update the current PCC rule, and determining the second PCC rule; or determining that the first message is used to indicate that the support status of the PDU set processing is changed from not supported to supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining the second PCC rule; or determining that the first message is used to indicate that the support status of the PDU set processing is changed from supported to not supported, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining the second PCC rule; or determining that the first message is used to indicate a change from supporting PDU processing to supporting PDU set processing, and the current PCC rule is generated based on the PDU, determining to update the current PCC rule, and determining the second PCC rule; or It is determined that the first message is used to indicate that support for PDU set processing is changed to support for PDU processing, and the current PCC rule is generated based on the PDU set, it is determined to update the current PCC rule, and the second PCC rule is determined.

12. A rule generation method, characterized in that: The method is performed by a second network element, and includes: A first message is sent to a first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine a PCC rule.

13. The method according to claim 12, characterized in that The capability information processed by the PDU set includes at least one of the following: Support status of PDU set processing; Whether the support status of PDU set processing has changed.

14. The method according to claim 12 or 13, characterized in that The method further comprises: A first subscription event notification sent by a first network element is received, wherein the first subscription event notification is used to obtain capability information of PDU set processing.

15. The method according to any one of claims 12 to 14, characterized in that The method further comprises: receiving a third message sent by a fourth network element, wherein the third message is used to indicate capability information of PDU set processing; or The third message sent by the fourth network element is received through the access and mobility management function AMF, wherein the third message is used to indicate capability information of PDU set processing.

16. The method according to claim 15, characterized in that The method further comprises: Send a second subscription event notification to the fourth network element, wherein the second subscription event notification is used to obtain capability information of PDU set processing.

17. The method according to any one of claims 12 to 16, characterized in that The method further comprises: Initiate the session management policy creation process, or initiate the session management policy modification process.

18. The method according to any one of claims 12 to 17, characterized in that The method further comprises: receiving the PCC rule sent by the first network element; According to the PCC rule, a quality of service QoS rule is determined.

19. The method according to claim 18, characterized in that The method further comprises: The QoS rule is sent to the fourth network element.

20. A rule generation method, characterized in that: The method is performed by a fourth network element, including: Sending a third message to the second network element; or Sending the third message to the second network element through the AMF; The third message is used to indicate capability information of PDU set processing, the third message is used by the second network element to send a first message to the first network element, the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine PCC rules.

21. The method of claim 20, wherein: The capability information processed by the PDU set includes at least one of the following: Support status of PDU set processing; Whether the support status of PDU set processing has changed.

22. The method according to claim 20 or 21, characterized in that The method further comprises: Receive a second subscription event notification sent by the second network element, wherein the second subscription event notification is used to obtain capability information of PDU set processing.

23. The method according to any one of claims 20 to 22, characterized in that The sending a third message to the second network element includes: Determining that a specified condition is met, sending the third message to the second network element; The specified conditions include at least one of the following: A network element switching occurs, and the fourth network element is a switched network element; PDU set processing capability changes; Changes in PDU set processing capabilities caused by OAM configuration triggers; Changes in PDU set processing capabilities caused by triggering busy and idle time windows; Changes in PDU set processing capabilities caused by QoS notification control triggers; PDU set handles state changes; PDU set processing status changes caused by OAM configuration triggers; PDU set processing status change caused by triggering when the time window is busy or idle; PDU set processing state changes caused by QoS notification control triggering.

24. A rule generation method, characterized in that: The method comprises: The second network element sends a first message to the first network element, wherein the first message is used to indicate capability information of PDUset processing; The first network element receives a first message sent by the second network element; The first network element determines a PCC rule based on the first message.

25. A first network element, characterized in that: include: A transceiver module, configured to receive a first message sent by a second network element, wherein the first message is used to indicate capability information processed by a PDUset; The processing module is configured to determine a PCC rule based on the first message.

26. A second network element, characterized in that: include: The transceiver module is used to send a first message to a first network element, wherein the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine a PCC rule.

27. A fourth network element, characterized in that: include: A transceiver module is used to send a third message to a second network element, wherein the third message is used to indicate capability information of PDU set processing, and the third message is used by the second network element to send a first message to a first network element, and the first message is used to indicate capability information of PDU set processing, and the first message is used by the first network element to determine PCC rules.

28. A first network element, characterized in that: include: one or more processors; The first network element is used to execute the method according to any one of claims 1 to 11.

29. A second network element, characterized in that: include: one or more processors; The second network element is used to execute the method according to any one of claims 12 to 19.

30. A fourth network element, characterized in that: include: one or more processors; The fourth network element is used to execute the method described in any one of claims 20 to 23.

31. A communication system, characterized in that: It includes a first network element, a second network element, and a fourth network element, wherein the first network element is configured to implement the method described in any one of claims 1 to 11, the second network element is configured to implement the method described in any one of claims 12 to 19, and the fourth network element is configured to implement the method described in any one of claims 20 to 23.

32. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 11, 12 to 19, and 20 to 23.

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