CN113115299B - URSP rule updating method and device - Google Patents

Abstract

The embodiment of the invention provides a URSP rule updating method and device, relates to the technical field of communication, and can complete the condition of adding (or updating) URSP rules for UE based on service flow (specifically a flow threshold), improve the updating effectiveness of the URSP rules and improve user experience. The method comprises the following steps: PCF receives URSP request message sent by AF, the URSP request message includes flow threshold value corresponding to UE in target service; the PCF determines the target URSP rule according to the flow threshold value; the PCF sends a first URSP update request message to the AMF, the first URSP update request message including the target URSP rule, the traffic threshold, and identification information of the target URSP rule, the first URSP update request message for requesting the AMF to send the target URSP rule to the UE.

Description

URSP rule updating method and device

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a URSP rule updating method and device.

Background

Currently, different user equipment routing selection policy (URSP) rules may be configured or updated for User Equipment (UE) in different services or different application scenarios. Specifically, the URSP rule may be updated for the UE when the location information of the UE changes (e.g., moves from a certain display area to a certain residential area), or when the connection state of the UE changes (e.g., changes from an idle state to an active state).

However, the above method for updating the URSP rule for the UE only by the location information or the connection status may not completely and effectively distinguish other situations that need to update the URSP rule, which may result in the update of the URSP rule being not timely, and further affecting the specific requirements of the user.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for updating a URSP rule, which can complete adding (or updating) a URSP rule to a UE based on a service traffic (specifically, a traffic threshold), improve validity of updating the URSP rule, and improve user experience.

In a first aspect, an embodiment of the present invention provides a method for updating a URSP rule, where the method includes: a Policy Control Function (PCF) receives a URSP request message sent by an Application Function (AF), where the URSP request message includes a traffic threshold corresponding to a target service of a UE; the PCF determines the target URSP rule according to the flow threshold value; the PCF sends a first URSP update request message to an access and mobility management function (AMF), where the first URSP update request message includes the target URSP rule, the traffic threshold, and identification information of the target URSP rule, and the first URSP update request message is used to request the AMF to send the target URSP rule to the UE.

In a second aspect, an embodiment of the present invention provides a URSP rule updating method, including: AMF receives a first URSP updating request message sent by PCF, wherein the first URSP updating request message comprises a target URSP rule, a flow threshold value corresponding to UE in a target service and identification information of the target URSP rule, and the target URSP rule is the URSP rule corresponding to the flow threshold value; the AMF sends a first URSP update indication message to the UE, wherein the target URSP rule is included in the first URSP update indication message, and the first URSP update indication message is used for indicating the UE to add the target URSP rule.

In a third aspect, an embodiment of the present invention provides a method for updating a URSP rule, where the method includes: a Session Management Function (SMF) receives a traffic threshold subscription request message sent by an AMF, where the traffic threshold subscription request message includes a target Protocol Data Unit (PDU) session ID, message filter information corresponding to a target service, and a traffic threshold corresponding to the UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the traffic threshold, the message filter information is used for characterizing a service type of the target service, the traffic threshold subscription request message is used for requesting to subscribe a traffic threshold event, the traffic threshold event is used for indicating the SMF, and the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold; the SMF sends the traffic threshold subscription request message to a User Plane Function (UPF).

In a fourth aspect, an embodiment of the present invention provides a URSP rule updating method, including: the method comprises the steps that a UPF receives a flow threshold value subscription request message sent by the SMF, wherein the flow threshold value subscription request message comprises a target PDU session ID, message filter information corresponding to a target service and a flow threshold value corresponding to UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the flow threshold value, the message filter information is used for representing the service type of the target service, the flow threshold value subscription request message is used for requesting to subscribe a flow threshold value event, the flow threshold value event is used for indicating the UPF, and the SMF is notified when the used flow corresponding to the UE in the target service is larger than the flow threshold value.

In a fifth aspect, an embodiment of the present invention provides a PCF, including: the device comprises a receiving module, a determining module and a sending module; the receiving module is configured to receive a URSP request message sent by an AF, where the URSP request message includes a traffic threshold corresponding to the UE in the target service; the determining module is configured to determine the target URSP rule according to the traffic threshold; the sending module is configured to send a first URSP update request message to the AMF, where the first URSP update request message includes the target URSP rule, the traffic threshold, and identification information of the target URSP rule, and the first URSP update request message is used to request the AMF to send the target URSP rule to the UE.

In a sixth aspect, an embodiment of the present invention provides an AMF, including: the device comprises a receiving module and a sending module; the receiving module is configured to receive a first URSP update request message sent by the PCF, where the first URSP update request message includes a target URSP rule, a traffic threshold corresponding to the UE in a target service, and identification information of the target URSP rule, and the target URSP rule is a URSP rule corresponding to the traffic threshold; the sending module is configured to send a first URSP update indication message to the UE, where the first URSP update indication message includes the target URSP rule, and the first URSP update indication message is used to indicate that the UE adds the target URSP rule.

In a seventh aspect, an embodiment of the present invention provides an SMF, including: the device comprises a receiving module and a sending module; the receiving module is configured to receive a traffic threshold subscription request message sent by an AMF, where the traffic threshold subscription request message includes a target PDU session ID, message filter information corresponding to a target service, and a traffic threshold corresponding to the UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the traffic threshold, the message filter information is used to characterize a service type of the target service, the traffic threshold subscription request message is used to request a subscription of a traffic threshold event, the traffic threshold event is used to indicate the SMF, and the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold; the sending module is configured to send the traffic threshold subscription request message to the UPF.

In an eighth aspect, an embodiment of the present invention provides a UPF, including: a receiving module; the receiving module is configured to receive a traffic threshold subscription request message sent by an SMF, where the traffic threshold subscription request message includes a target PDU session ID, message filter information corresponding to a target service, and a traffic threshold corresponding to the UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the traffic threshold, the message filter information is used to characterize a service type of the target service, the traffic threshold subscription request message is used to request a subscription of a traffic threshold event, the traffic threshold event is used to indicate the UPF, and the SMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold.

In a ninth aspect, an embodiment of the present invention provides a URSP rule updating apparatus, including: a processor, a memory, a bus, and a communication interface; the memory is used for storing computer-executable instructions, the processor is connected with the memory through a bus, and when the URSP rule updating device runs, the processor executes the computer-executable instructions stored in the memory, so that the URSP rule updating device executes the URSP rule updating method provided by the first aspect, the second aspect, the third aspect or the fourth aspect.

In a tenth aspect, an embodiment of the present invention provides a computer-readable storage medium, which includes a computer program, and when the computer program runs on a computer, the computer is caused to execute a URSP rule updating method provided in the first aspect, the second aspect, the third aspect, or the fourth aspect.

In an eleventh aspect, an embodiment of the present invention provides a computer program product including instructions, which, when run on a computer, causes the computer to execute a URSP rule updating method provided in the first aspect, the second aspect, the third aspect, or the fourth aspect.

PCF receives URSP request message sent by AF, the URSP request message includes flow threshold value corresponding to UE in target service; the PCF determines a target URSP rule according to the flow threshold value and sends a first URSP updating request message to the AMF; the AMF sends a first URSP updating indication message to the UE, wherein the first URSP updating indication message comprises the target URSP rule; after the UE receives the first URSP update indication message, it determines to add the target URSP rule (or update other URSP rules to the target URSP rule). In the embodiment of the invention, the PCF can determine a URSP rule to be updated (namely a target URSP rule) and sends the target URSP rule to the UE through the AMF, so that the UE can complete the adding (or updating) process of the target URSP rule, and can complete the adding (or updating) of the URSP rule for the UE based on the service flow (specifically a flow threshold), thereby improving the updating effectiveness of the URSP rule and improving the user experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below.

Fig. 1 is a schematic network architecture diagram of a 5G communication system according to an embodiment of the present invention;

fig. 2 is a hardware schematic diagram of a server according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a URSP rule updating method according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another URSP rule updating method according to an embodiment of the present invention;

fig. 5 is a schematic diagram of another URSP rule updating method according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a PCF according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another PCF provided in an embodiment of the present invention;

FIG. 8 is a schematic diagram of an AMF according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of another AMF according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of an SMF according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another SMF according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a UPF according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of another UPF according to an embodiment of the present invention.

Detailed Description

The URSP rule updating method and apparatus provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The terms "first" and "second" etc. in the description and drawings of the present application are used to distinguish between different objects and are not used to describe a particular order of objects, e.g., a first URSP update request message and a second URSP update request message etc. are used to distinguish between different URSP update request messages and are not used to describe a particular order of URSP update request messages.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion.

The term "and/or" as used herein includes the use of either or both of the two methods.

In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.

Based on the problems existing in the background art, the embodiments of the present invention provide a method and an apparatus for updating a URSP rule, where a PCF receives a URSP request message sent by an AF, where the URSP request message includes a traffic threshold corresponding to a UE in a target service; the PCF determines a target URSP rule according to the flow threshold value and sends a first URSP updating request message to the AMF; the AMF sends a first URSP updating indication message to the UE, wherein the first URSP updating indication message comprises the target URSP rule; after the UE receives the first URSP update indication message, it determines to add the target URSP rule (or update other URSP rules to the target URSP rule). In the embodiment of the invention, the PCF can determine a URSP rule to be updated (namely a target URSP rule) and sends the target URSP rule to the UE through the AMF, so that the UE can complete the adding (or updating) process of the target URSP rule, and can complete the adding (or updating) of the URSP rule for the UE based on the service flow (specifically a flow threshold), thereby improving the updating effectiveness of the URSP rule and improving the user experience.

AN exemplary method and apparatus for updating URSP rules provided in the embodiments of the present invention may be applied to a wireless communication system, and for example, the wireless communication system is a 5G communication system, as shown in fig. 1, which is a schematic diagram of a network architecture of the 5G communication system provided in the embodiments of the present invention, the 5G communication system may include a UE 101, a Radio Access Network (RAN) device or AN Access Network (AN) device 102, AN UPF 103, AN AMF 104, AN SMF 105, a PCF 106, AN authentication service function (AUSF) 107, a network function storage function (NRF) 108, AN AF 109, a capability open function (NEF) 112, a unified data management (unified data management, UDM) 111, and a network slice selection function (network slice selection function, sf) 112. The UE 101 accesses a 5G network (i.e., understood that the UE 101 accesses a 5G system that can provide the 5G network) and establishes a session with the network, and the UE 101 can then communicate with functions (e.g., UPF 103, AMF 104, etc.) serving the UE 101 through the (R) AN device 102. In general, in practical applications, the connections between the above-mentioned devices or service functions may be wireless connections, and fig. 1 illustrates the connections between the devices by solid lines for convenience of intuitively representing the connections between the devices.

Wherein, (R) AN apparatus 102 is used for UE 101 to access a network, and (R) AN apparatus 102 may include a base station, AN evolved node base station (eNB), a next generation base station (gNB), a new radio base station (new radio eNB), a macro base station, a micro base station, a high frequency base station or a Transmission and Reception Point (TRP), a non-third generation partnership project (3 rd generation partnership project,3 GPP) access network (e.g., wiFi), and/or a non-3GPP interworking function (nw), and the like.

UPF 103: for handling events related to the user plane, such as transmitting or routing packets, detecting packets, reporting traffic, handling quality of service (QoS), lawful interception, storing downstream packets, etc. In the embodiment of the present invention, the UPF 103 may determine, based on the target PDU session ID and the message filter information corresponding to the target service, the used traffic of the UE 101 in the target service.

The AMF 104: for connection management, mobility relationships, registration management, access authentication and authorization, reachability management, security context management, and the like. In this embodiment of the present invention, the AMF 104 may send a first URSP update indication message to the UE 101, that is, instruct the UE 101 to add the target URSP rule.

SMF 105: for session management (e.g., establishment, modification, and release of sessions), selection and control of the UPF 103, selection of a service and session continuity (service and session continuity) mode, and roaming service, etc. In this embodiment of the present invention, the SMF 105 may receive the traffic threshold subscription request message sent by the AMF 104, that is, when the used traffic corresponding to the UE 101 in the target service is greater than the traffic threshold of the UE 101 in the target service, notify the AMF 104.

The PCF 106: the method is used for making a strategy, providing a strategy control service, acquiring subscription information related to strategy decision and the like. In the embodiment of the present invention, the PCF may receive the URSP request message sent by the AF 109, and determine the target URSP rule according to the traffic threshold corresponding to the UE 101 in the target service, which is included in the URSP request message.

AUSF 107: for interacting with UDM 111 to obtain user information and perform authentication related functions, such as generating intermediate keys, etc.

NRF 108: network function text for service discovery, maintaining available network function instances, and services supported by those network functions.

AF 109: interacting with the 3GPP core network, providing services or servers, for example, may interact with NEF 110.

NEF 110: various services and capabilities provided by the secure open 3GPP network function (including content open or open to a third party, etc.), information for converting or translating information interacting with the AF 109 and information interacting with the internal network function, such as AF service identification and content 5G core network information (e.g., network slice selection assistance information, etc.), and the like.

UDM 111: processing authentication information in a 3GPP authentication and key agreement mechanism, processing user identity information, access authorization, registration and mobility management, subscription management, short message management and the like.

NSSF 112: for selecting a set of network slices for the UE 101, determining network slice selection protocol information, and determining a set of AMFs to serve the UE 101 (an AMF set refers to a set of multiple AMFs that may serve the UE 101).

Optionally, in the embodiment of the present invention, the above functional modules (i.e., UPF 103, AMF 104, SMF 105, PCF 106, AUSF 107, NRF 108, AF 109, NEF110, UDM 111, and NSSF 112) may be integrated on a server to implement the functions thereof.

Alternatively, the UPF 103, the AMF 104, the SMF 105, and the PCF 106 may be independent devices, for example, a server integrated with the UPF function, a server integrated with the AMF function, a server integrated with the SMF function, and a server integrated with the PCF function. In the embodiment of the present invention, a hardware structure of a server is described by taking an example in which functions of a UPF are integrated in one server. As shown in fig. 2, the server 20 includes a processor 201, a memory 202, a network interface 203, and the like.

The processor 201 is a core component of the server 20, and the processor 201 is configured to run an operating system of the server 20 and applications (including a system application and a third-party application) on the server 20, so as to implement the URSP rule updating method performed by the server 20.

In this embodiment, the processor 201 may be a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof, which is capable of implementing or executing various exemplary logic blocks, modules, and circuits described in connection with the disclosure of the embodiment of the present invention; a processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like.

Optionally, the processor 201 of the server 20 includes one or more CPUs, which are single-core CPUs (single-CPUs) or multi-core CPUs (multi-CPUs).

The memory 202 includes, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical memory, or the like. The memory 202 holds the code for the operating system.

Optionally, the processor 201 reads the instruction stored in the memory 202 to implement the URSP rule updating method in the embodiment of the present invention, or the processor 201 implements the URSP rule updating method provided in the embodiment of the present invention by using an instruction stored inside. In the case that the processor 201 implements the URSP rule updating method provided by the embodiment of the present invention by reading the execution saved in the memory, the memory stores instructions for implementing the URSP rule updating method provided by the embodiment of the present invention.

The network interface 203 is a wired interface, such as a Fiber Distributed Data Interface (FDDI) interface, gigabit Ethernet (GE) interface. Alternatively, the network interface 203 is a wireless interface. The network interface 203 is used for the server 20 to communicate with other devices.

The memory 202 is used to store the target PDU session ID and message filter information. The at least one processor 201 further performs the method described in the embodiments of the present invention according to the destination PDU session ID and the packet filter information stored in the memory 202. For more details of the above functions implemented by the processor 201, reference is made to the following description of various method embodiments.

Optionally, the server 20 further includes a bus, and the processor 201 and the memory 202 are connected to each other through the bus 204, or in other manners.

Optionally, the server 20 further includes an input/output interface 205, where the input/output interface 205 is configured to connect with an input device, and receive a flow threshold subscription request message input by a user through the input device. Input devices include, but are not limited to, a keyboard, a touch screen, a microphone, and the like. The input/output interface 205 is also used to interface with an output device, outputting the processor 201 super-threshold notification message. Output devices include, but are not limited to, a display, a printer, and the like.

It should be understood that, in the embodiment of the present invention, the hardware structures of the AMF 104, the SMF 105 and the PCF 106 are similar to the hardware structure of the server 20 shown in fig. 2, and the description of the hardware structures of the AMF 104, the SMF 105 and the PCF 106 may refer to the description of the hardware structure of the server 20, which is not described in detail herein.

With reference to the communication system shown in fig. 1, the URSP rule updating method provided in the embodiment of the present invention is fully described below from the perspective of interaction among devices in the communication system, so as to respectively describe a procedure of adding a target URSP rule by a UE, a procedure of subscribing to a traffic threshold event, and a procedure of removing the target URSP rule by the UE.

As shown in fig. 3, the URSP rule updating method provided by the embodiment of the present invention may include S101 to S112.

S101, AF sends URSP request message to PCF.

Wherein, the URSP request message includes a traffic threshold corresponding to the UE in the target service, and the URSP request message is used to request the PCF to allocate a target URSP rule to the UE, where the target URSP rule is a URSP rule corresponding to the traffic threshold.

It should be understood that in case the UE determines to select (which may be understood as an account purchase or subscription) a target service, in particular to select the traffic threshold in the target service, for example 20GB of traffic for a certain service, the URSP addition (or update) procedure may be triggered, in particular to trigger the S101.

S102, PCF receives URSP request message sent by AF.

Wherein, the URSP request message includes a traffic threshold corresponding to the UE in the target service.

S103, PCF determines the target URSP rule according to the flow threshold value corresponding to the UE in the target service.

It is to be appreciated that the target URSP rule is the URSP rule corresponding to the traffic threshold.

Specifically, the PCF may store a correspondence between the traffic threshold and the URSP rule, and when a certain traffic threshold is obtained, the URSP rule corresponding to the traffic threshold may be determined from the correspondence.

S104, PCF sends first URSP updating request message to AMF.

Wherein the first URSP update request message includes the target URSP rule, the traffic threshold and the identification information of the target URSP rule, and is used for requesting the AMF to send the target URSP rule to the UE.

S105, AMF receives the first URSP updating request message sent by PCF.

S106, the AMF sends a first URSP updating indication message to the UE.

Wherein, the first URSP update indication message includes a target URSP rule, and the first URSP update indication message is used for indicating the UE to add the target URSP rule.

It should be noted that, in the case that there is no other URSP rule in the UE (i.e. a URSP rule other than the target URSP rule), the first URSP update indication message is used to instruct the UE to add the target URSP rule; in the case that there are other URSP rules in the UE, the first URSP update indication message is also used to instruct the UE to update the other URSP rules to the target URSP rules.

S107, the UE receives the first URSP updating indication message sent by the AMF.

S108, the UE determines to add the target URSP rule.

In conjunction with the description of the above embodiment, the UE may also determine to update other URSP rules to the target URSP rule.

S109, the UE sends a first URSP updating confirmation message to the AMF.

Wherein the first URSP update confirm message is used to inform the AMF that the target URSP rule addition was successful.

S110, the AMF receives a first updating confirmation message sent by the UE.

S111, AMF sends a first URSP updating response message to PCF.

Wherein the first URSP update response message is used to inform PCF that the target URSP rule is successfully added in the UE. Optionally, the first URSP update response message is further used to notify the PCF that the target URSP rule is successfully updated in the UE, specifically, to update other URSP rules to the target URSP rule.

S112, the PCF receives the first URSP update response message sent by the AMF.

In the URSP rule updating method provided by the embodiment of the present invention, a PCF receives a URSP request message sent by an AF, where the URSP request message includes a traffic threshold corresponding to a UE in a target service; the PCF determines a target URSP rule according to the flow threshold value and sends a first URSP updating request message to the AMF; the AMF sends a first URSP updating indication message to the UE, wherein the first URSP updating indication message comprises the target URSP rule; after the UE receives the first URSP update indication message, it determines to add the target URSP rule (or update other URSP rules to the target URSP rule). In the embodiment of the invention, PCF can determine a URSP rule to be updated (namely a target URSP rule) and sends the target URSP rule to UE through AMF, so that the UE can complete the adding (or updating) process of the target URSP rule, and can complete the adding (or updating) of the URSP rule for the UE based on the service flow (specifically a flow threshold value), thereby improving the updating effectiveness of the URSP rule and improving the user experience.

As shown in fig. 4, the URSP rule updating method provided in the embodiment of the present invention may further include S201 to S210.

S201, the UE sends a PDU conversation updating request message to the AMF.

The PDU session update request message includes a target PDU session ID and message filter information corresponding to a target service, where the target PDU session ID is a PDU session ID corresponding to the target URSP rule, and the message filter information is used to represent a service type of the target service.

It should be understood that, after the update of the URSP rule in the UE, that is, the above S108 triggers the PDU session update procedure, specifically, one URSP rule corresponds to one PDU session ID, and the UE may determine the target PDU session ID corresponding to the URSP rule according to the target URSP rule.

In one case, the message filter information may be Internet Protocol (IP) triple information, which includes a source IP address, a target IP address, and an upper layer protocol type. Specifically, the source IP address is an IP address of a PDU session corresponding to the UE, the target IP address is an IP address of a server storing service data of a target service, and the upper layer protocol type is a Transmission Control Protocol (TCP) or a User Datagram Protocol (UDP).

S202, the AMF receives a PDU session update request message sent by the UE.

S203, the AMF sends a flow threshold subscription request message to the SMF.

The flow threshold subscription request message includes a target PDU session ID, message filter information corresponding to a target service, and the flow threshold, and is used to request subscription of a flow threshold event, where the flow threshold event is used to indicate an SMF, and notify the AMF when a used flow corresponding to the target service of the UE is greater than the flow threshold.

S204, the SMF receives the flow threshold subscription request message sent by the AMF.

S205, the SMF sends a flow threshold subscription request message to the UPF.

S206, the UPF receives the flow threshold subscription request message sent by the SMF.

The flow threshold subscription request message includes a target PDU session ID, packet filter information corresponding to a target service, and a flow threshold corresponding to the UE in the target service, where the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the flow threshold, the packet filter information is used to characterize a service type of the target service, the flow threshold subscription request message is used to request to subscribe to a flow threshold event, the flow threshold event is used to indicate the UPF, and the SMF is notified when a used flow corresponding to the UE in the target service is greater than the flow threshold.

It should be appreciated that the UPF may determine the corresponding used traffic of the UE in the beacon service based on the target PDU session ID and the message filter information.

S207, the UPF sends a flow threshold value subscription response message to the SMF.

Wherein, the traffic threshold subscription response message is used to notify the SMF that the traffic threshold event subscription is successful.

S208, the SMF receives the flow threshold value subscription response message sent by the UPF.

S209, the SMF sends a flow threshold subscription response message to the AMF.

It should be understood that the SMF may also send a PDU session update response message to the AMF, i.e. notify the AMF that the target PDU session update was successful.

S210, the AMF receives the flow threshold subscription response message sent by the SMF.

Wherein the traffic threshold subscription response message is used to notify the AMF that the traffic threshold event subscription is successful.

It is understood that the AMF may also send a PDU session update response message to the UE, the PDU session update response message being used to inform the UE that the target PDU session update was successful.

In the URSP rule updating method provided in the embodiment of the present invention, after the UE determines to add (or update) the target URSP rule, the PDU session update flow can be triggered, that is, the UE sends a PDU session update request message to the AMF, where the PDU session update request message includes a target PDU session ID (that is, a PDU session ID corresponding to the target URSP rule) and message filter information; after receiving the PDU session update request message, the AMF sends a traffic threshold subscription request message, that is, requests to subscribe to a traffic threshold event, where the traffic threshold event is used to indicate the SMF, and notifies the AMF when a corresponding used traffic of the UE in the target service is greater than the traffic threshold; and the SMF sends the traffic threshold subscription request message to the UPF, and after receiving the traffic threshold subscription request message, the UPF returns a traffic threshold subscription response message to the AMF through the SMF, that is, notifies that the traffic threshold event subscription is successful. In the embodiment of the invention, the UE sends the PDU session update request message to the AMF, and then the AMF can subscribe a flow threshold event to the UPF through the SMF, and then the UPF notifies the AMF through the SMF under the condition that the used flow is greater than the flow threshold, so that whether the UE needs to remove (or update) a target URSP rule can be determined based on the service flow (specifically the used flow and the flow threshold), the update diversity of the URSP rule is improved, and the user experience is improved.

As shown in fig. 5, the URSP rule updating method provided in this embodiment of the present invention may further include S301 to S314.

S301, UPF determines the corresponding used flow of UE in the target service based on the target PDU session ID and the message filter information.

Specifically, the UPF may perform service traffic identification on the target PDU session ID and the packet filter information, and determine the service traffic corresponding to the target PDU session ID and the packet filter information, that is, the used traffic.

S302, under the condition that the corresponding used flow of the UE in the target service is larger than the flow threshold, the UPF sends a super-threshold notification message to the SMF.

Wherein, the super-threshold notification message is used to notify the SMF that the used traffic corresponding to the UE in the target service is greater than the traffic threshold.

S303, the SMF receives the super threshold notification message sent by the UPF.

S304, the SMF sends a super threshold notification message to the AMF.

S305, the AMF receives the super threshold notification message sent by the SMF.

The super-threshold notification message is used to notify the AMF that the UE has used traffic in the target service that is greater than the traffic threshold.

S306, AMF sends a second URSP update request message to PCF.

Wherein the second URSP update request message includes identification information of a target URSP rule, and the second URSP update request message is used to request removal of the target URSP rule.

It should be noted that when the UE has no other URSP rule to update (or use), the second URSP update request message is used to request to remove the target URSP rule, that is, the UE has no URSP rule to maintain its continued use of the target service; when the UE has other URSP rules that can be updated (or used), the second URSP update request message is further used to request to update the target URSP rule, specifically, to update the target URSP rule to the other URSP rules, specifically, to update the lower-guaranteed-level (e.g., priority or data transmission rate) URSP rule.

S307, the PCF receives the second URSP update request message sent by the AMF.

S308, PCF sends a second URSP update response message to AMF.

Wherein the second URSP update response message is used to instruct the AMF to send a second URSP update indication message to the UE, the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to instruct the UE to remove the target URSP rule.

In conjunction with the description of the above embodiments, it should be understood that the second URSP update indication message may also be used to instruct the UE to update the target URSP rule to another URSP rule.

S309, AMF receives second URSP updating response message sent by PCF.

S310, the AMF sends a second URSP update indication message to the UE.

Wherein the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to indicate the UE to remove the target URSP rule.

S311, the UE receives the second URSP update indication message sent by the AMF.

S312, the UE determines a removal target URSP rule.

Optionally, the UE may also determine to update the target URSP rule to the other URSP rules described above.

S313, the UE sends a second URSP update confirmation message to the AMF.

Wherein the second URSP update confirm message is used to inform the AMF that the target URSP rule removal was successful.

In conjunction with the description of the above embodiment, the second URSP update confirmation message is also used to notify the AMF that the target URSP rule is successfully updated, specifically, the target URSP rule is updated to another URSP rule.

S314, AMF receives the second URSP update confirmation message sent by UE.

It should be understood that after S314, i.e. after removing (or updating) the target URSP rule, the PDU session update procedure is continuously triggered, i.e. the above S201 and its subsequent steps are performed.

In the method for updating the URSP rule provided in the embodiment of the present invention, after the subscription of the traffic threshold event is successful, the UPF may determine, based on the target PDU session ID and the message filter information, the used traffic corresponding to the UE in the target service, and send, through the SMF, a super-threshold notification message to the AMF when the used traffic is greater than the traffic threshold, that is, notify the AMF that the used traffic corresponding to the UE in the target service is greater than the traffic threshold (that is, notify the AMF to request to remove or update the target URSP rule); after receiving the super-threshold notification message, the AMF sends a second URSP update request message to the PCF, wherein the second URSP update request message comprises the identification information of the target URSP rule; the PCF sends a second URSP update response message to the AMF after receiving the second URSP update request message, that is, instructs the AMF to send a second URSP update indication message (that is, sends the target URSP rule) to the UE, and after receiving the second URSP update indication message, the UE determines to remove the target URSP rule or update the target URSP rule to another URSP rule, and can determine that the UE needs to remove (or update) the target URSP rule based on the traffic flow (specifically, the used traffic and the traffic threshold), thereby improving the URSP rule update efficiency and improving the user experience.

In the embodiment of the present invention, the PCF, AMF, SMF, UPF, and the like may be divided into functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only one logic function division, and another division manner may be available in actual implementation.

In the case of dividing each functional module by corresponding functions, fig. 6 shows a possible structural diagram of the PCF involved in the above embodiment, as shown in fig. 6, the PCF 30 may include: a receiving module 301, a determining module 302 and a sending module 303.

A receiving module 301, configured to receive a URSP request message sent by an AF, where the URSP request message includes a traffic threshold corresponding to the UE in the target service.

A determining module 302, configured to determine the target URSP rule according to the traffic threshold.

A sending module 303, configured to send a first URSP update request message to the AMF, where the first URSP update request message includes the target URSP rule, the traffic threshold, and the identification information of the target URSP rule, and the first URSP update request message is used to request the AMF to send the target URSP rule to the UE.

Optionally, the receiving module 301 is further configured to receive a second URSP update request message sent by the AMF, where the second URSP update request message includes the identification information of the target URSP rule.

A sending module 303, further configured to send a second URSP update response message to the AMF, where the second URSP update response message is used to instruct the AMF to send a second URSP update indication message to the UE, where the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to instruct the UE to remove the target URSP rule.

Fig. 7 shows a possible structural diagram of the PCF involved in the above embodiment, in case of an integrated unit. As shown in fig. 7, PCF 40 may include: a processing module 401 and a communication module 402. Processing module 401 may be used to control and manage the actions of PCF 40. Communication module 402 may be used to support communication for PCF 40 with other entities. Optionally, as shown in FIG. 7, the PCF 40 may also include a storage module 403 for storing program codes and data for the PCF 40.

The processing module 401 may be a processor or a controller (for example, the processor 201 shown in fig. 2). The communication module 402 may be a transceiver, a transceiver circuit, a communication interface, etc. (e.g., may be the network interface 203 as shown in fig. 2 described above). The storage module 403 may be a memory (e.g., may be the memory 202 described above and shown in fig. 2).

When the processing module 401 is a processor, the communication module 402 is a transceiver, and the storage module 403 is a memory, the processor, the transceiver, and the memory may be connected through a bus. The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the case of dividing each functional module by corresponding functions, fig. 8 shows a schematic diagram of a possible structure of the AMF involved in the foregoing embodiments, and as shown in fig. 8, the AMF 50 may include: a receiving module 501 and a sending module 502.

A receiving module 501, configured to receive a first URSP update request message sent by a PCF, where the first URSP update request message includes a target URSP rule, a traffic threshold corresponding to a target service of a UE, and identification information of the target URSP rule, and the target URSP rule is a URSP rule corresponding to the traffic threshold.

A sending module 502, configured to send a first URSP update indication message to the UE, where the first URSP update indication message includes the target URSP rule, and the first URSP update indication message is used to indicate that the UE adds the target URSP rule.

Optionally, the receiving module 501 is further configured to receive a PDU session update request message sent by the UE, where the PDU session update request message includes a target PDU session ID and message filter information corresponding to the target service, the target PDU session ID is a PDU session ID corresponding to the target URSP rule, and the message filter information is used to characterize a service type of the target service.

The sending module 502 is further configured to send a traffic threshold subscription request message to the SMF, where the traffic threshold subscription request message includes the target PDU session ID, the packet filter information corresponding to the target service, and the traffic threshold subscription request message is used to request to subscribe to a traffic threshold event, where the traffic threshold event is used to indicate the SMF, and notify the AMF when a corresponding used traffic of the UE in the target service is greater than the traffic threshold.

Optionally, the receiving module 501 is further configured to receive a super-threshold notification message sent by the SMF, where the super-threshold notification message is used to notify the AMF that the used traffic of the UE in the target service is greater than the traffic threshold.

A sending module 502, further configured to send a second URSP update request message to the PCF, where the second URSP update request message includes identification information of the target URSP rule, and the second URSP update request message is used to request to remove the target URSP rule.

A receiving module 501, configured to receive a second URSP update response message sent by the PCF, where the second URSP update response message is used to instruct the AMF to send a second URSP update indication message to the UE.

A sending module 502, further configured to send a second URSP update indication message to the UE, where the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to indicate that the UE removes the target URSP rule.

Fig. 9 shows a possible structural diagram of the AMF involved in the above-described embodiment, in the case of an integrated unit. As shown in fig. 9, AMF 60 may include: a processing module 601 and a communication module 602. The processing module 601 may be used to control and manage the actions of the AMF 60. The communication module 602 may be used to support communication of the AMF 60 with other entities. Optionally, as shown in fig. 9, the AMF 60 may further include a storage module 603 for storing program codes and data of the AMF 60.

The processing module 601 may be a processor or a controller (for example, the processor 201 shown in fig. 2 described above). The communication module 602 may be a transceiver, a transceiver circuit, a communication interface, etc. (e.g., may be the network interface 203 as shown in fig. 2 described above). The storage module 603 may be a memory (e.g., may be the memory 202 described above with reference to fig. 2).

When the processing module 601 is a processor, the communication module 602 is a transceiver, and the storage module 603 is a memory, the processor, the transceiver, and the memory may be connected via a bus. The bus may be a PCI bus or EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the case of dividing each functional module by corresponding functions, fig. 10 shows a possible structural schematic diagram of the SMF in the above embodiment, as shown in fig. 10, the SMF 70 may include: a receiving module 701 and a transmitting module 702.

A receiving module 701, configured to receive a traffic threshold subscription request message sent by an AMF, where the traffic threshold subscription request message includes a target PDU session ID, message filter information corresponding to a target service, and a traffic threshold corresponding to the UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the traffic threshold, the message filter information is used to represent a service type of the target service, the traffic threshold subscription request message is used to request a subscription of a traffic threshold event, the traffic threshold event is used to indicate the SMF, and the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold.

A sending module 702, configured to send the traffic threshold subscription request message to the UPF.

In case of integrated units, fig. 11 shows a possible structural schematic of the SMF involved in the above embodiments. As shown in fig. 11, SMF 80 may include: a processing module 801 and a communication module 802. Processing module 801 may be used to control and manage the actions of SMF 80. Communication module 802 may be used to support communication of SMF 80 with other entities. Optionally, as shown in fig. 11, the SMF 80 may further include a storage module 803 for storing program codes and data of the SMF 80.

The processing module 801 may be a processor or a controller (e.g., the processor 201 shown in fig. 2). The communication module 802 may be a transceiver, a transceiver circuit, or a communication interface, etc. (e.g., may be the network interface 203 as shown in fig. 2 described above). The storage module 803 may be a memory (e.g., may be the memory 202 described above with reference to fig. 2).

When the processing module 801 is a processor, the communication module 802 is a transceiver, and the storage module 803 is a memory, the processor, the transceiver, and the memory may be connected via a bus. The bus may be a PCI bus or EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the case of dividing each functional module by corresponding functions, fig. 12 shows a possible structural diagram of the UPF involved in the above embodiment, and as shown in fig. 12, the UPF 90 may include: a module 901 is received.

A receiving module 901, configured to receive a traffic threshold subscription request message sent by an SMF, where the traffic threshold subscription request message includes a target PDU session ID, packet filter information corresponding to a target service, and a traffic threshold corresponding to the UE in the target service, the target PDU session ID is a PDU session ID corresponding to a target URSP rule, the target URSP rule is a URSP rule corresponding to the traffic threshold, the packet filter information is used to represent a service type of the target service, the traffic threshold subscription request message is used to request to subscribe to a traffic threshold event, the traffic threshold event is used to indicate the UPF, and the SMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold.

Optionally, the UPF 90 may further include a determining module 902 and a sending module 903.

A determining module 902, configured to determine, based on the target PDU session ID and the message filter information, a corresponding used traffic of the UE in the target service.

A sending module 903, configured to send a super-threshold notification message to the SMF when the used traffic corresponding to the UE in the target service is greater than the traffic threshold, where the super-threshold notification message is used to notify the SMF, and the used traffic corresponding to the UE in the target service is greater than the traffic threshold.

In the case of integrated units, fig. 13 shows a possible structural diagram of the UPF referred to in the above embodiments. As shown in fig. 13, the UPF 100 may include: a processing module 1001 and a communication module 1002. The processing module 1001 may be used to control and manage the actions of the UPF 100. The communications module 1002 may be used to support communications of the UPF 100 with other entities. Optionally, as shown in fig. 13, the UPF 100 may further include a storage module 1003 for storing program codes and data of the UPF 100.

The processing module 101 may be a processor or a controller (e.g., the processor 201 shown in fig. 2). The communication module 1002 may be a transceiver, a transceiver circuit, a communication interface, etc. (e.g., may be the network interface 203 as shown in fig. 2). The storage module 1003 may be a memory (e.g., may be the memory 202 described above in fig. 2).

When the processing module 1001 is a processor, the communication module 1002 is a transceiver, and the storage module 1003 is a memory, the processor, the transceiver, and the memory may be connected via a bus. The bus may be a PCI bus or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the invention may be carried out in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (14)

1. A URSP rule updating method is characterized by comprising the following steps:

a policy control function PCF receives a user equipment routing policy URSP request message sent by an application function AF, wherein the URSP request message comprises a flow threshold value corresponding to user equipment UE in a target service;

the PCF determines a target URSP rule according to the flow threshold value;

the PCF sends a first URSP update request message to an access and mobility management function (AMF), so that the AMF sends a traffic threshold subscription request message to a Session Management Function (SMF), and so that the SMF sends the traffic threshold subscription request message to a User Plane Function (UPF), where the traffic threshold subscription request message includes a target PDU session ID, message filter information corresponding to the target service, and the traffic threshold, the target PDU session ID is a PDU session ID corresponding to the target URSP rule, the message filter information is used for characterizing a service type of the target service, the traffic threshold subscription request message is used for requesting to subscribe to a traffic threshold event, the traffic threshold event is used for indicating the SMF, the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold, the traffic threshold event is also used for indicating the UPF, the SMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold, the first URSP update request message includes the target URSP rule, the traffic threshold and the target URSP information identifies the URSP and sends the target URSP update request message to the UE.

2. The URSP rule updating method of claim 1, wherein after said PCF sends a first URSP update request message to the AMF, said method further comprising:

the PCF receives a second URSP updating request message sent by the AMF, wherein the second URSP updating request message comprises the identification information of the target URSP rule;

and the PCF sends a second URSP update response message to the AMF, wherein the second URSP update response message is used for indicating the AMF to send a second URSP update indication message to the UE, the second URSP update indication message comprises the target URSP rule, and the second URSP update indication message is used for indicating the UE to remove the target URSP rule.

3. A method for updating URSP rules, comprising:

an access and mobility management function AMF receives a first user equipment routing strategy URSP updating request message sent by a strategy control function PCF, wherein the first URSP updating request message comprises a target URSP rule, a flow threshold value corresponding to user equipment UE in a target service and identification information of the target URSP rule, and the target URSP rule is the URSP rule corresponding to the flow threshold value;

the AMF sends a first URSP updating indication message to the UE, wherein the first URSP updating indication message comprises the target URSP rule, and the first URSP updating indication message is used for indicating the UE to add the target URSP rule;

the AMF receives a Protocol Data Unit (PDU) session updating request message sent by the UE, wherein the PDU session updating request message comprises a target PDU session ID and message filter information corresponding to the target service, the target PDU session ID is the PDU session ID corresponding to the target URSP rule, and the message filter information is used for representing the service type of the target service;

the AMF sends a flow threshold value subscription request message to a Session Management Function (SMF) so that the SMF sends the flow threshold value subscription request message to a User Plane Function (UPF), wherein the flow threshold value subscription request message comprises the target PDU session ID, message filter information corresponding to the target service and the flow threshold value, the flow threshold value subscription request message is used for requesting to subscribe a flow threshold value event, the flow threshold value event is used for indicating the SMF, the AMF is notified when the corresponding used flow of the UE in the target service is greater than the flow threshold value, the flow threshold value event is also used for indicating the UPF, and the SMF is notified when the corresponding used flow of the UE in the target service is greater than the flow threshold value.

4. The URSP rule updating method of claim 3, wherein after the AMF sends a traffic threshold subscription request message to an SMF, the method further comprises:

the AMF receives a super-threshold notification message sent by the SMF, wherein the super-threshold notification message is used for notifying the AMF that the corresponding used flow of the UE in the target service is greater than the flow threshold;

the AMF sends a second URSP updating request message to the PCF, wherein the second URSP updating request message comprises the identification information of the target URSP rule, and the second URSP updating request message is used for requesting to remove the target URSP rule;

the AMF receives a second URSP updating response message sent by the PCF, wherein the second URSP updating response message is used for indicating the AMF to send a second URSP updating indication message to the UE;

and the AMF sends a second URSP updating indication message to the UE, wherein the second URSP updating indication message comprises the target URSP rule, and the second URSP updating indication message is used for indicating the UE to remove the target URSP rule.

5. A method for updating URSP rules, comprising:

a Session Management Function (SMF) receives a flow threshold subscription request message sent by an access and mobility management function (AMF), wherein the flow threshold subscription request message comprises a target Protocol Data Unit (PDU) session ID, message filter information corresponding to a target service and a flow threshold corresponding to the target service of User Equipment (UE), the target PDU session ID is the PDU session ID corresponding to a target user equipment routing policy (URSP) rule, the target URSP rule is the URSP rule corresponding to the flow threshold, the message filter information is used for representing the service type of the target service, the flow threshold subscription request message is used for requesting to subscribe a flow threshold event, the flow threshold event is used for indicating the SMF, and the AMF is notified when the used flow corresponding to the target service of the UE is greater than the flow threshold;

and the SMF sends the flow threshold value subscription request message to a user plane function UPF.

6. A method for updating URSP rules, comprising:

a User Plane Function (UPF) receives a flow threshold subscription request message sent by a Session Management Function (SMF), wherein the flow threshold subscription request message comprises a target Protocol Data Unit (PDU) session ID, message filter information corresponding to a target service and a flow threshold corresponding to the target service of User Equipment (UE), the target PDU session ID is the PDU session ID corresponding to a target user equipment routing policy (URSP) rule, the target URSP rule is the URSP rule corresponding to the flow threshold, the message filter information is used for representing the service type of the target service, the flow threshold subscription request message is used for requesting to subscribe a flow threshold event, the flow threshold event is used for indicating the UPF, and the SMF is notified when the used flow corresponding to the UE in the target service is greater than the flow threshold.

7. The URSP rule updating method of claim 6, wherein after the UPF sends a traffic threshold subscription response message to the SMF, the method further comprises:

the UPF determines the corresponding used flow of the UE in the target service based on the target PDU session ID and the message filter information;

and under the condition that the used flow corresponding to the UE in the target service is greater than the flow threshold, the UPF sends a super-threshold notification message to the SMF, wherein the super-threshold notification message is used for notifying the SMF, and the used flow corresponding to the UE in the target service is greater than the flow threshold.

8. A policy control function PCF, comprising: the device comprises a receiving module, a determining module and a sending module;

the receiving module is configured to receive a URSP request message sent by an application function AF, where the URSP request message includes a traffic threshold corresponding to a target service of a UE;

the determining module is used for determining a target URSP rule according to the flow threshold value;

the sending module is configured to send a first URSP update request message to an access and mobility management function AMF, so that the AMF sends a traffic threshold subscription request message to a session management function SMF, and so that the SMF sends the traffic threshold subscription request message to a user plane function UPF, where the traffic threshold subscription request message includes a target PDU session ID, packet filter information corresponding to the target traffic, and the traffic threshold, the target PDU session ID is a PDU session ID corresponding to the target URSP rule, the packet filter information is used for characterizing a traffic type of the target traffic, the traffic threshold subscription request message is used for requesting to subscribe to a traffic threshold event, the traffic threshold event is used for indicating the SMF, the AMF is notified when a used traffic corresponding to the UE in the target traffic is greater than the traffic threshold, the traffic threshold event is also used for indicating the UPF, the SMF is notified when a used traffic corresponding to the UE in the target traffic is greater than the traffic threshold, and the first URSP update request message includes the target URSP rule, the traffic threshold and the target traffic information identifying the first URSP rule, and the UE is used for requesting to send a target traffic update to the UE.

9. The PCF of claim 8,

the receiving module is further configured to receive a second URSP update request message sent by the AMF, where the second URSP update request message includes identification information of the target URSP rule;

the sending module is further configured to send a second URSP update response message to the AMF, where the second URSP update response message is used to instruct the AMF to send a second URSP update indication message to the UE, where the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to instruct the UE to remove the target URSP rule.

10. An access and mobility management function, AMF, comprising: the device comprises a receiving module and a sending module;

the receiving module is configured to receive a first user equipment routing policy, URSP, update request message sent by a policy control function PCF, where the first URSP update request message includes a target URSP rule, a traffic threshold corresponding to a target service of a user equipment UE, and identification information of the target URSP rule, and the target URSP rule is a URSP rule corresponding to the traffic threshold;

the sending module is configured to send a first URSP update indication message to the UE, where the first URSP update indication message includes the target URSP rule, and the first URSP update indication message is used to indicate that the UE adds the target URSP rule;

the receiving module is further configured to receive a protocol data unit PDU session update request message sent by the UE, where the PDU session update request message includes a target PDU session ID and message filter information corresponding to the target service, the target PDU session ID is a PDU session ID corresponding to the target URSP rule, and the message filter information is used to characterize a service type of the target service;

the sending module is further configured to send a traffic threshold subscription request message to a session management function SMF, so that the SMF sends the traffic threshold subscription request message to a user plane function UPF, where the traffic threshold subscription request message includes the target PDU session ID, packet filter information corresponding to the target service, and the traffic threshold, the traffic threshold subscription request message is used to request subscription of a traffic threshold event, the traffic threshold event is used to indicate the SMF, the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold, the traffic threshold event is also used to indicate the UPF, and the SMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold.

11. The AMF of claim 10,

the receiving module is further configured to receive a super-threshold notification message sent by the SMF, where the super-threshold notification message is used to notify the AMF, and a corresponding used traffic of the UE in the target service is greater than the traffic threshold;

the sending module is further configured to send a second URSP update request message to the PCF, where the second URSP update request message includes identification information of the target URSP rule, and the second URSP update request message is used to request to remove the target URSP rule;

the receiving module is further configured to receive a second URSP update response message sent by the PCF, where the second URSP update response message is used to instruct the AMF to send a second URSP update instruction message to the UE;

the sending module is further configured to send a second URSP update indication message to the UE, where the second URSP update indication message includes the target URSP rule, and the second URSP update indication message is used to indicate that the UE removes the target URSP rule.

12. A session management function, SMF, comprising: the device comprises a receiving module and a sending module;

the receiving module is configured to receive a traffic threshold subscription request message sent by an access and mobility management function AMF, where the traffic threshold subscription request message includes a PDU session ID of a target protocol data unit, message filter information corresponding to a target service, and a traffic threshold corresponding to the target service of a user equipment UE, the PDU session ID of the target is a PDU session ID corresponding to a routing policy URSP rule of the target user equipment, the target URSP rule is a URSP rule corresponding to the traffic threshold, the message filter information is used for characterizing a service type of the target service, the traffic threshold subscription request message is used for requesting to subscribe to a traffic threshold event, the traffic threshold event is used for indicating the SMF, and the AMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold;

and the sending module is used for sending the flow threshold value subscription request message to a User Plane Function (UPF).

13. A user plane function, UPF, comprising: a receiving module;

the receiving module is configured to receive a traffic threshold subscription request message sent by a session management function SMF, where the traffic threshold subscription request message includes a PDU session ID corresponding to a target protocol data unit, a packet filter information corresponding to a target service, and a traffic threshold corresponding to the target service of a user equipment UE, the PDU session ID is a PDU session ID corresponding to a routing policy URSP rule of the target user equipment, the target URSP rule is a URSP rule corresponding to the traffic threshold, the packet filter information is used to characterize a service type of the target service, the traffic threshold subscription request message is used to request a traffic threshold event subscription, the traffic threshold event is used to indicate the UPF, and the SMF is notified when a used traffic corresponding to the UE in the target service is greater than the traffic threshold.

14. The UPF of claim 13, wherein the UPF further comprises a determining module and a transmitting module;

the determining module is configured to determine, based on the target PDU session ID and the packet filter information, a used traffic corresponding to the UE in the target service;

the sending module is configured to send a super-threshold notification message to the SMF when the used traffic corresponding to the UE in the target service is greater than the traffic threshold, where the super-threshold notification message is used to notify the SMF, and the used traffic corresponding to the UE in the target service is greater than the traffic threshold.

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