CN117439888A

CN117439888A - AM policy updating method, device, system, equipment and medium

Info

Publication number: CN117439888A
Application number: CN202210835660.6A
Authority: CN
Inventors: 刘玉冰; 陈卓怡; 龙彪
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2024-01-23
Also published as: WO2024012489A1

Abstract

The disclosure provides an AM policy updating method, an AM policy updating device, an AM policy updating system, an AM policy updating device and an AM policy updating medium, and relates to the technical field of communication. The method comprises the following steps: subscribing the update notification information of the network resource remaining allowable use condition to a unified data warehouse (UDR) entity; receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity; and updating the AM strategy according to the updated network resource remaining allowable use condition. According to the AM policy updating method, device, system, equipment and medium, through the fact that the first PCF entity related to the UE subscribes the notification message of the network resource remaining allowable use condition updating from the UDR entity, the first PCF entity updates the AM policy according to the network resource remaining allowable use condition, and flexibility of 5GC policy decision is improved.

Description

AM policy updating method, device, system, equipment and medium

Technical Field

The present disclosure relates to the field of big data technologies, and in particular, to an access and mobility management AM policy updating method, apparatus, system, electronic device, and computer readable storage medium.

Background

With The rapid development of The fifth generation mobile communication technology (The 5th Generation Mobile Communication Technology,5G), the 5G core network (5 GC) is The core of The 5G mobile network, and The policy control function (Policy Control Function, PCF) related to The entity session of The protocol data unit (Protocol Data Unit, PDU) in The 5GC can update The session management (Session Management, SM) policy according to The received user plane resource usage.

In 5GC, PCF related to User Equipment (UE) and PCF related to session belong to different PCF entities, and the interfaces supported by the PCF entities are different, and the PCF entity related to session does not support the interface between the PCF entity and the access and mobility management function (Access and Mobility Management Function, AMF) entity, and the PCF entity related to UE does not support the interface between the PCF entity and the SMF entity, so that the policy decision of access and mobility management (Accss and Mobility Management, AM) cannot be adjusted quickly and flexibly.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure provides an access and mobility management (AM) policy updating method, device, equipment and medium, which at least overcome the problem that the existing AM policy cannot be flexibly adjusted to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided an AM policy update method applied to a first policy control function PCF entity, including:

subscribing the update notification information of the network resource remaining allowable use condition to a unified data warehouse (UDR) entity;

receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity;

and updating the access and mobility management (AM) policy according to the updated network resource remaining allowable use condition.

In one embodiment of the present disclosure, the updating the AM policy according to the updated network resource remaining allowable usage includes, but is not limited to:

upgrading or downgrading the maximum aggregate bit rate of the UE; or,

Upgrading or downgrading the maximum aggregate bit rate of the UE slice; or,

the access/frequency selection priority index is adjusted.

In one embodiment of the present disclosure, the method further comprises:

and sending the updated AM strategy to the AMF entity through the access and mobile strategy control service.

According to one aspect of the present disclosure, there is provided an AM policy updating method applied to a UDR entity, including:

receiving update notification information of the subscription network resource remaining allowable use condition sent by a first PCF entity;

updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the network resource actual use condition monitored by the second PCF entity;

and sending the updated network resource remaining allowable use condition to the first PCF entity so that the first PCF entity updates the AM strategy according to the updated network resource remaining allowable use condition.

In one embodiment of the present disclosure, the updating the remaining usage allowance of network resources includes:

the user plane function UPF entity monitors the actual use condition of network resources on a user plane, wherein the actual use condition of the network resources monitored by the user plane comprises the use duration and the actual flow use amount when the user terminal UE uses one or more applications/services;

If the preset triggering condition is met, the UPF entity sends the actual use condition of the network resource meeting the triggering condition to the second PCF entity;

and according to the actual use condition of the network resources meeting the triggering condition, the second PCF entity updates the residual allowable use condition of the network resources in the UDR entity.

In one embodiment of the present disclosure, the method further comprises:

if the usage time is greater than or equal to a preset time threshold, determining that a preset trigger condition is met, and/or,

if the reporting period of the duration when the UE uses one or more applications/services is over, then it is determined that a preset trigger condition is satisfied, and/or,

if the traffic reporting period when the UE uses one or more applications/services ends, it is determined that a preset trigger condition is satisfied, and/or,

and if the actual usage amount of the network resource is greater than or equal to a preset traffic usage amount threshold, judging that a preset triggering condition is met.

In one embodiment of the present disclosure, before the UPF entity monitors actual usage of network resources at the user plane, the method further comprises:

the second PCF entity provides an SM policy for a session management function SMF entity;

And the SMF entity indicates the UPF entity to send the actual use condition of the network resources monitored by the user plane.

In one embodiment of the present disclosure, the UPF entity sends actual usage of network resources that meet the trigger condition to the second PCF entity, including:

the UPF entity sends the actual use condition of the network resource monitored by the user plane to the SMF entity through a message forwarding control protocol;

and the SMF entity controls the update service to send the actual use condition of the network resources monitored by the user plane to the second PCF entity through the session management policy.

In one embodiment of the present disclosure, the network resource remaining allowed use cases include a remaining allowed use duration and a traffic remaining allowed use amount for the UE to use one or more applications/services,

the second PCF entity updates the remaining allowed use cases of network resources in the UDR entity, including:

taking the difference value between the flow remaining allowable usage and the actual flow usage meeting the triggering condition as the updated flow remaining allowable usage;

and taking the difference between the remaining allowable use time length and the use time length meeting the triggering condition as the updated remaining allowable use time length.

According to another aspect of the present disclosure, there is provided an AM policy updating apparatus applied to a first PCF entity, including:

the information subscription module is used for subscribing the update notification information of the residual allowable use condition of the network resource to the UDR entity;

the information receiving module is used for receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the network resource actual use conditions monitored by the second PCF entity;

and the policy updating module is used for updating the AM policy according to the updated network resource remaining allowable use condition.

According to another aspect of the present disclosure, there is provided an AM policy updating apparatus applied to a UDR entity, including:

the subscription notification module is used for receiving update notification information of the residual allowable use condition of the subscription network resources sent by the first PCF entity;

the resource updating module is used for updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the network resource actual use condition monitored by the second PCF entity;

and the information sending module is used for sending the updated network resource remaining allowable use condition to the first PCF entity so that the first PCF entity can update the AM strategy according to the updated network resource remaining allowable use condition.

According to another aspect of the present disclosure, there is provided an AM policy updating system comprising a first PCF entity and a UDR entity, wherein,

the first PCF entity is used for subscribing the update notification information of the residual allowable use condition of the network resource to the UDR entity; receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity; updating the AM strategy according to the updated network resource remaining allowable use condition;

the UDR entity is used for receiving update notification information of the residual allowable use condition of the subscribed network resources sent by the first PCF entity; updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the network resource actual use condition monitored by the second PCF entity; and sending the updated network resource remaining allowable use condition to the first PCF entity so that the first PCF entity updates the AM strategy according to the updated network resource remaining allowable use condition.

According to another aspect of the present disclosure, there is provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the AM policy updating method described above via execution of the executable instructions.

According to another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the AM policy updating method described above.

According to another aspect of the present disclosure, there is provided a computer program product including executable instructions stored in a computer-readable storage medium, which are read from the computer-readable storage medium by a processor of an electronic device, the executable instructions being executed by the processor, causing the electronic device to perform the AM policy updating method as described in any one of the above embodiments.

According to the AM policy updating method, device, system, equipment and medium provided by the embodiment of the disclosure, through the first PCF entity related to the UE, updating notification information of network resource remaining permission use conditions is subscribed from the UDR entity, when the network resource remaining permission use conditions in the UDR entity are updated according to the network resource actual use conditions monitored by the second PCF entity, the updated network resource remaining permission use conditions are sent to the first PCF entity, so that the first PCF entity updates the AM policy according to the updated network resource remaining permission use conditions, thereby meeting AM policy control requirements of a network based on use condition monitoring, realizing more flexible adjustment of related policies by the network, and increasing the flexibility of policy decision by 5 GC.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a system architecture diagram provided by an embodiment of the present disclosure;

FIG. 2 shows a flow chart of an AM policy updating method provided by an embodiment of the present disclosure;

FIG. 3 illustrates a flow chart of another AM policy updating method provided by an embodiment of the present disclosure;

FIG. 4 illustrates a flow chart of another AM policy updating method provided by an embodiment of the present disclosure;

FIG. 5 shows an interaction diagram of an AM policy updating method provided by an embodiment of the present disclosure;

fig. 6 illustrates a schematic diagram of an AM policy updating apparatus provided by an embodiment of the present disclosure;

fig. 7 illustrates another schematic diagram of an AM policy updating apparatus provided by an embodiment of the present disclosure;

Fig. 8 illustrates a schematic diagram of an AM policy updating system provided by an embodiment of the present disclosure;

fig. 9 shows a block diagram of an electronic device provided by an embodiment of the disclosure;

fig. 10 shows a schematic diagram of a computer-readable storage medium provided in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

Fig. 1 shows a schematic diagram of an exemplary system architecture that may be applied to an access and mobility management AM policy updating method or an access and mobility management AM policy updating apparatus provided by an embodiment of the present disclosure.

The system architecture includes a user equipment, a network, and a 5G core network (5 GC). The medium used by the network to provide the communication link between the user equipment and the 5GC may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like are used to represent the number of exchanges over a network. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated number communication techniques may also be used in place of or in addition to the number communication techniques described above.

The communication system may employ different communication techniques such as code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency-division Multiple Access, OFDMA), single Carrier frequency division multiple access (SC-FDMA), carrier sense multiple access/collision avoidance (Carrier Sense Multiple Access with Collision Avoidance). The 5G network is simply referred to as a network or system. In the present disclosure, the network comprises a network device, which may be, for example, a radio access network node; the 5G core network comprises 5G core network equipment. Wherein the radio access network node may also become a base station. The network may provide network services to the user device through the network device.

A User Equipment (UE), which may be referred to as a terminal device, a mobile terminal, a mobile station, etc., is a device that provides voice and/or number connectivity to a User, and may be a variety of electronic devices including, but not limited to, smartphones, tablet computers, laptop portable computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, etc.

Alternatively, the clients of the applications installed in different user devices are the same or clients of the same type of application based on different operating systems. The specific form of the application client may also be different based on the different terminal platforms, for example, the application client may be a mobile phone client, a PC client, etc.

As shown in fig. 1, the 5G core network device includes various network entities of the 5GC, and in the 5G architecture, the main functional entities function as follows:

the base station is mainly responsible for the air interface resource scheduling and the air interface connection management of the terminal access network;

an authentication server function (Authentication Server Function, AUSF) mainly responsible for authenticating and authorizing access to the UE;

unified data management (Unified Data Manager, UDM), mainly responsible for preserving the subscription data of the user;

an access and mobility management function (Access and Mobility Mangement Function, AMF) mainly responsible for access authentication, authorization and mobility management;

session management functions (Session Management Function, SMF) mainly responsible for session management, network protocol (Internet Protocol, IP) address allocation;

a user plane function (User Plane Function, UPF), which is a connection point with an external Data Network (DN), and is mainly responsible for routing and forwarding Data units, policy enforcement on packet Data, and the like;

A policy control function (Policy Control Function, PCF) mainly responsible for policy decisions;

the application function (Application Function, AF) is mainly responsible for providing the PCF with service information of user access service for policy decision of the PCF.

As shown in fig. 1, an AMF entity supports access of UEs with different mobility management requirements, provides authentication and authorization functions for the UEs when accessing, and interacts with the AMF entity through an interface N1; the SMF entity is used for establishing a session and configuring session related policies such as flow control and routing of the UPF entity, and the SMF entity interacts with the PCF entity through an N7 interface; the UDM entity is a part of a control plane of the 5G core network, is a front end function of a 5G user database and is responsible for user subscription data management, and interacts with the AMF entity through an N8 interface, interacts with the SMF entity through an N10 interface and interacts with the AUSF entity through an N13 interface; the PCF entity is responsible for policy management in the network, including session policy and access and mobility management policy, and interacts with the SMF entity through an N5 interface and interacts with the AF entity through an N5 interface; the UPF entity is used as a 5G network user plane entity and mainly supports the routing and forwarding of UE service data, the data and service identification, the action and the policy execution and the like, and interacts with the SMF entity through an N4 interface, is controlled and managed by the SMF entity and executes the processing of service flows according to various policies issued by the SMF network element.

In 5GC, PCF entity (PCF for PDU Session) associated with the session updates SM policy based on the received actual usage of network resources. However, the PCF entity associated with the UE and the PCF entity associated with the session are different PCF entities, the interfaces supported by the PCF entities are different, the PCF entity associated with the session does not support an interface with the AMF entity, and the PCF entity associated with the UE does not support an interface with the SMF entity. Therefore, the 5GC cannot support the PCF entity related to the UE to acquire the network resource usage and the remaining available amount information, and also does not support the PCF entity related to the UE to adjust the access and mobility management (Access and Mobility Management, AM) policy based on the network resource remaining available amount information.

Based on this, the scheme provided in the embodiment of the application relates to a communication technology, and the first PCF entity related to the UE subscribes to update notification information of a network resource remaining usage permission from the UDR entity, and when the network resource remaining usage permission in the UDR entity is updated according to the actual network resource usage monitored by the second PCF entity related to the session, the updated network resource remaining usage permission is sent to the first PCF entity, so that the first PCF entity updates an AM policy according to the updated network resource remaining usage permission, so as to meet an AM policy control requirement of the network based on usage monitoring, realize more flexible adjustment of the network to the related policy, and increase flexibility of policy decision by the 5 GC. The following examples are provided to illustrate the invention:

Firstly, an access and mobility management AM policy updating method is provided in the embodiments of the present disclosure, and the method may be executed by any system having computing processing capability, and the process may be executed by an access and mobility management AM policy updating apparatus, where the apparatus may be located in a 5G core network device or may be a 5G core network device.

Fig. 2 shows a flowchart of an AM policy updating method in an embodiment of the present disclosure, where, as shown in fig. 2, the AM policy updating method provided in the present embodiment is applied to a PCF entity of a first policy control function, and includes the following steps:

s202, subscribing the update notification information of the network resource remaining permission use condition to a unified data warehouse function UDR entity.

The first PCF entity of this embodiment is a PCF entity associated with the UE.

The network resource is monitored by the user plane, and the network resource monitored by the user plane comprises at least one resource of an internal resource block of the user plane entity, wherein the internal resource block is represented by an internal resource block identifier. The internal resource blocks are hardware resource blocks and/or virtual resource blocks. The usage of network resources is typically characterized by network resource status information, which includes at least one allocable channel identifier for marking a data transmission channel corresponding to an internal resource block, or which includes at least one allocable channel identifier for marking a data transmission channel in a user plane entity.

Optionally, the network resource remaining usage permission includes a remaining usage permission duration and a traffic remaining usage permission of the UE using one or more applications, and the network resource remaining usage permission is a difference between a network resource availability and a network resource usage. It should be noted that, the larger the remaining allowable usage amount of the network resource is, the more network resources are available for allocation, for example, the more data transmission channels are available for data transmission, and at this time, the AM policy needs to be adjusted to adapt to the network resources; the smaller the remaining allowable usage of network resources, indicating less network resources are available for deployment, the AM policy needs to be adjusted to accommodate the network resources.

Specifically, the network resource remaining allowed usage conditions include a remaining allowed usage duration and a traffic remaining allowed usage amount for the UE to use one or more applications.

S204, receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity.

In this embodiment, the remaining usage permission of network resources is stored in the UDR entity, and when the UE uses a certain application/service, the actual usage of the traffic and the usage duration are monitored by the second PCF entity related to the session, where the actual usage of the traffic is the user plane traffic used by the UE when using a certain or more applications/services in the usage duration.

For example, the second PCF entity may monitor a usage time period when the UE uses one or more applications/services, and when the usage time period when the UE uses one or more applications/services is greater than or equal to a preset time period threshold, the second PCF entity updates the remaining usage allowance amount and the remaining usage allowance amount of the traffic in the UDR entity according to the monitored usage time period and the actual usage amount of the traffic in the usage time period. For example, the UE subscribes to a traffic package service, specifically: the package duration is one month, the preset duration threshold can be set to be the package duration (namely one month) or 80% of the package duration (namely 24 days), when the service duration of the UE using the traffic service reaches 24 days, an expiration prompt can be sent to a user in a mode of information (such as a short message, a mail) and the like, the remaining allowable traffic volume is updated according to the actual traffic usage in the service duration, and the remaining allowable traffic duration is updated according to the service duration; and when the use time of the traffic service used by the UE reaches one month, reminding the user to transact the renewal service in time, and the like.

Illustratively, in order to facilitate providing a better service, the second PCF entity periodically collects the actual usage of traffic according to the duration of the UE when using one or more applications/services, and periodically updates the remaining allowable usage of traffic stored in the UDR entity according to the actual usage of traffic. It should be noted that the duration reporting period may be determined according to practical situations, for example, 24 hours, 48 hours, etc., which is not specifically limited in this application.

The second PCF entity periodically reports the actual usage of network resources according to the traffic reporting period when the UE uses one or more applications/services, updates the remaining usage allowed for traffic stored in the UDR entity according to the actual usage for traffic, and updates the remaining usage allowed duration according to the usage duration corresponding to the traffic reporting period. It should be noted that the usage flow reporting period may be set according to practical situations, for example, 0.5M, 1M, etc., which is not specifically limited in this application.

The second PCF entity may update the remaining usage allowance of the traffic stored in the UDR entity in a quantitative manner according to a preset traffic usage threshold and a usage period corresponding to the traffic usage threshold, that is, when the actual usage of the network resource monitored by the second PCF entity reaches the preset traffic usage threshold, the second PCF entity updates the remaining usage allowance of the network resource in the UDR entity, and updates the remaining usage allowance period according to the usage period corresponding to the traffic usage threshold. It should be noted that, the traffic usage threshold may be determined according to practical situations, for example, for a UE subscribed to a traffic package service, the preset traffic usage threshold may be set to 2M, etc., which is not specifically limited in this application.

It should be noted that, the above preset duration threshold, duration reporting period, traffic reporting period, or traffic usage threshold are merely examples provided for illustrating the embodiments of the present disclosure, and should not be construed as limiting the protection scope of the present disclosure. In other implementations, the preset duration threshold, duration reporting period, traffic reporting period, or traffic usage threshold may also have different forms according to the specific implementation.

S206, updating the AM strategy according to the updated network resource remaining allowable use condition.

In this embodiment, the AM policy is dynamically adjusted based on the updated network resource remaining allowable usage situation and the usage threshold, for example, when the updated traffic remaining allowable usage is 20M, the AM policy is adjusted, so as to implement more flexible adjustment of the non-session management related policy.

In one embodiment, the AM policy is dynamically adjusted based on the range of resource permitted usage in which the updated remaining permitted usage of network resources is located. For example, when the updated traffic remaining allowable usage is in the range of 10M to 20M, setting the UE maximum aggregate bit rate in the AM policy to a first level; and if the updated network resource surplus allowable usage is in the range of 20M-30M, setting the maximum aggregate bit rate of the UE in the AM strategy to be a second level.

It should be noted that the above usage threshold or the allowed usage range of resources is only provided as an example for illustrating the embodiments of the present disclosure, and should not be considered as limiting the scope of protection of the present disclosure. In other implementations, the usage threshold or the range of allowed usage of resources may also have different forms depending on the particular implementation (e.g., the baseline for updating the AM policy, etc.).

According to the AM policy updating method provided by the embodiment of the disclosure, through the first PCF entity related to the UE subscribing the update notification information of the network resource remaining permission use condition from the UDR entity, after the network resource remaining permission use condition in the UDR entity is updated according to the network resource actual use condition monitored by the second PCF entity, the updated network resource remaining permission use condition is sent to the first PCF entity, so that the first PCF entity updates the AM policy according to the updated network resource remaining permission use condition, thereby meeting the AM policy control requirement of the network based on use condition monitoring, realizing more flexible adjustment of the related policy by the network, and increasing the flexibility of policy decision by 5 GC.

In one embodiment of the present disclosure, step S206 updates the AM policy according to the updated network resource remaining allowable usage, including but not limited to:

Upgrading or downgrading the maximum aggregate bit rate of the UE; or,

upgrading or downgrading the maximum aggregate bit rate of the UE slice; or,

the access/frequency selection priority index is adjusted.

UE maximum aggregate bit rate (UE Aggregate Maximum Bit Rate, UE-AMBR), also called aggregate maximum bit rate, is a QoS parameter, representing the maximum rate allowed by all Non-GBR traffic of a UE, non-GBR being the minimum transmission rate guarantee that the network does not provide, in case of network congestion, the traffic needs to withstand the reduced rate requirement, which can be maintained for a long time since the Non-GBR bearers do not need to occupy fixed network resources.

When the AM strategy is adjusted, if the residual allowable usage amount of the flow is increased, the UE-AMBR is upgraded; and if the residual allowable usage amount of the traffic is reduced, performing UE-AMBR reduction processing. For example, if the remaining allowable traffic volume increases by 20M, the UE-AMBR increases by one step; if the traffic remaining allowable usage is reduced by 20M each time, the UE-AMBR is lowered by one step.

The maximum aggregate bit rate (UE Slice Maximum Bit Rate, UE-slice-MBR) of the UE slice is updated if the residual allowable traffic volume increases during AM policy adjustment; and if the traffic surplus allowable usage amount is reduced, the UE-slice-MBR reduction processing is performed. For example, if the traffic remaining allowable usage increases by 20M, the UE-slice-MBR increases by one step; if the traffic remaining allowed usage is reduced by 20M each, the UE-slice-MBR is lowered by one step.

Access/frequency selection priority Index (RFSP) to RAT/Frequency Selection Priority, the network uses the RFSP Index to select an appropriate bearer for a specific service at the base station to better perform radio resource management, so that capacity management and intermodulation interference prevention can be better performed.

In this embodiment, the method further includes:

The access and mobility policy control service (npcf_ampoliccontrol) of this embodiment is part of the interface of the first PCF entity based on the Npcf service. The npcf_ampoliccontrol service is used to access an AMF entity that accesses access and mobility policy control services on a first PCF entity via an N15 interface. For example, in a roaming scenario, the N15 interface is located between a V-PCF entity and an AMF entity in the visited network.

Based on the same inventive concept, an embodiment of the present disclosure further provides an AM policy updating method, where an execution subject of the method is a UDR entity, as described in the following embodiments. Since the principle of solving the problem of this method embodiment is similar to that of the above method embodiment, the implementation of this method embodiment can refer to the implementation of the above method embodiment, and the repeated description is omitted.

Fig. 3 shows a flowchart of another AM policy updating method provided by an embodiment of the present disclosure. As shown in fig. 3, an AM policy updating method of this embodiment is applied to a UDR entity, and includes:

s302, receiving update notification information of the residual allowable use condition of the subscribed network resources sent by a first PCF entity;

s304, updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the actual use condition of the network resource monitored by the second PCF entity;

and S306, the updated network resource remaining allowable use condition is sent to the first PCF entity, so that the first PCF entity updates the AM strategy according to the updated network resource remaining allowable use condition.

According to the AM policy updating method provided by the embodiment of the disclosure, when the UDR entity receives the update notification subscription information of the network resource remaining permission use condition, the network resource remaining permission use condition stored in the UDR entity is monitored in real time, if the network resource remaining permission use condition changes, the UDR entity feeds the network resource remaining permission use condition back to the first PCF entity in time so as to inform the first PCF entity that the network resource remaining permission use condition changes, an AM policy needs to be adjusted according to the network resource remaining permission use condition so as to meet the AM policy control requirement of the network based on use condition monitoring, the network can adjust related policies more flexibly, and the flexibility of policy decision by 5GC is increased.

Fig. 4 shows a flowchart of another AM policy updating method provided by an embodiment of the present disclosure.

As shown in fig. 4, the updating the remaining usage allowance of the network resource in step S304 specifically includes:

s402, a user plane function UPF entity monitors actual use conditions of network resources on a user plane, wherein the actual use conditions of the network resources monitored by the user plane comprise use duration and actual flow use amount when the UE uses one or more applications/services;

s404, judging whether a preset triggering condition is met; if yes, go to step S406; if not, continuing to execute S402;

s406, the UPF entity transmits the actual use condition of the network resources meeting the triggering condition to the second PCF entity;

and S408, according to the actual use condition of the network resources meeting the triggering condition, the second PCF entity updates the residual allowable use condition of the network resources in the UDR entity.

The UPF entity monitors the actual use condition of the network resources in real time on a user plane, wherein the actual use condition of the network resources is the use time length and the actual use amount of the network resources when the UE uses one or more applications/services.

In one embodiment, before the UPF entity monitors actual usage of network resources at the user plane at step S402, the method further comprises:

The second PCF entity provides an SM policy to the SMF entity;

the SMF entity indicates the UPF entity to send the actual use condition of the network resources monitored by the user plane.

After the SMF entity obtains the SM policy, the UPF entity is instructed to monitor the actual usage situation of the network resources facing the user, where the actual usage situation of the network resources monitored by the user plane includes a usage time period and an actual usage amount of the network resources when the UE uses one or more applications/services, and the usage time period and/or the actual usage amount of the network resources are used as a reference of a trigger condition to determine whether the trigger condition is met, so as to feed back the actual usage situation of the network resources when the trigger condition is met to the SMF entity, and the SMF entity sends the actual usage situation of the network resources when the trigger condition is met to the second PCF entity, so that the second PCF entity updates the remaining allowable usage situation of the network resources stored in the UDR entity according to the actual usage situation of the network resources when the trigger condition is met.

In one embodiment, the method further comprises:

if the usage time period is greater than or equal to a preset time period threshold when the UE uses one or more applications/services, then a preset trigger condition is determined to be met, and/or,

if the reporting period ends for the duration of time when the UE uses one or more applications/services, then it is determined that a preset trigger condition is met, and/or,

if the actual usage amount of the network resource is greater than or equal to the preset traffic usage amount threshold, judging that the preset triggering condition is met.

It should be noted that at least one of the usage duration, duration reporting period, traffic reporting period and actual usage of network resources satisfies the above conditions, so as to determine that the preset trigger condition is satisfied. The preset duration threshold value, duration reporting period, flow reporting period and value range of the flow usage threshold value are determined according to actual conditions, and the application is not particularly limited.

In one embodiment, the SM policy provided by the second PCF entity to the SMF entity carries a preset duration threshold, a duration reporting period, a traffic reporting period, and a traffic usage threshold.

In some embodiments, the preset duration threshold, duration reporting period, traffic reporting period, and traffic usage threshold may be preset in the UPF entity.

In one embodiment, the UPF entity sends the actual usage of the network resource that satisfies the trigger condition to the second PCF entity, including:

The SMF entity controls the update service to send the actual use condition of the network resources monitored by the user plane to the second PCF entity through the session management strategy.

The message forwarding control protocol (Packet Forwarding Control Protocol, PFCP) of this embodiment mainly has an N4 interface with the user plane function and the control plane function of 5G, for interaction between the control plane and the user plane. The PFCP message is IP + UDP based.

Session management policy control Update service (npcf_smpolicy control_update) performs provisioning, updating, and deletion of session related policies and PCC rules to the SMF entity through the PCF entity. Session management policy control update services may be used for billing control, policy control, and/or application monitoring and control.

step S408, the second PCF entity updates the remaining usage allowance of network resources in the UDR entity, including:

And taking the difference between the residual allowable use duration and the use duration meeting the triggering condition as the updated residual allowable use duration.

The AM policy updating method is described below with reference to fig. 5.

As shown in fig. 5, the specific flow of the method is as follows:

s501, a first PCF entity subscribes update notification information of the residual allowable use condition of network resources to a UDR entity;

s502, a second PCF entity provides an SM strategy for an SMF entity, and the SMF entity indicates a UPF entity to send actual use conditions of network resources monitored by a user plane to the SMF entity;

optionally, the SM policy carries a preset duration threshold, a duration reporting period, a traffic reporting period and a traffic usage threshold;

s503, when the UE starts to use one or more applications/services, the UPF entity monitors the actual use condition of network resources at the user plane;

s504, when the preset triggering condition is met, the UPF entity sends the actual use condition of the network resource monitored by the user plane to the SMF entity through the PFCP session report request;

s505, the SMF entity sends the actual use condition of the network resource monitored by the user plane to the second PCF entity;

s506, the second PCF entity updates the flow remaining allowable use quantity and the remaining allowable use duration stored in the UDR entity to obtain updated flow remaining allowable use quantity and remaining allowable use duration;

S507, the UDR entity sends a notification message of the update of the remaining allowable use condition of the network resource to the first PCF entity;

s508, the first PCF entity updates the AM strategy according to the received network resource remaining allowable use condition;

s509, the first PCF entity sends the updated AM strategy to the AMF.

Based on the same inventive concept, an AM policy updating apparatus is also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can refer to the implementation of the embodiment of the method, and the repeated description is omitted.

Fig. 6 shows a diagram of an AM policy updating apparatus according to an embodiment of the present disclosure, as shown in fig. 6, where the AM policy updating apparatus of the present embodiment is applied to a first PCF entity, and the apparatus includes an information subscription module 601, an information receiving module 602, and a policy updating module 603, where,

an information subscription module 601, configured to subscribe, to a UDR entity, update notification information of remaining allowed use cases of network resources;

an information receiving module 602, configured to receive an updated network resource remaining usage allowance sent by the UDR entity, where the network resource remaining usage allowance is updated according to an actual network resource usage monitored by the second PCF entity;

The policy updating module 603 is configured to update the AM policy according to the updated remaining usage permission of the network resource.

According to the method and the device for updating the AM policy, the first PCF entity related to the UE subscribes the update notification information of the network resource remaining permission use condition from the UDR entity, when the network resource remaining permission use condition in the UDR entity is updated according to the network resource actual use condition monitored by the second PCF entity, the updated network resource remaining permission use condition is sent to the first PCF entity, so that the first PCF entity updates the AM policy according to the updated network resource remaining permission use condition, the AM policy control requirement of the network based on use condition monitoring is met, the network can flexibly adjust related policies, and the flexibility of policy decision by 5GC is improved.

In one embodiment, the policy update module 603 is specifically configured to upgrade or downgrade the UE maximum aggregate bit rate; or, upgrading or downgrading the maximum aggregate bit rate of the UE slice; alternatively, the access/frequency selection priority index is adjusted.

In one embodiment, the apparatus further comprises a policy sending module, not shown in the drawings, wherein,

And the policy sending module is used for sending the updated AM policy to the AMF entity through the access and mobile policy control service.

Fig. 7 shows a schematic diagram of another AM policy updating apparatus provided by an embodiment of the present disclosure. As shown in fig. 7, the AM policy updating apparatus of the present embodiment is applied to a UDR entity, and includes a subscription notification module 701, a resource updating module 702, and an information transmitting module 703, wherein,

a subscription notification module 701, configured to receive update notification information of remaining allowed use conditions of subscribed network resources sent by a first PCF entity;

a resource updating module 702, configured to update a network resource remaining usage allowance, where the network resource remaining usage allowance is updated according to an actual network resource usage monitored by the second PCF entity;

the information sending module 703 sends the updated remaining usage of network resources to the first PCF entity, so that the first PCF entity updates the AM policy according to the updated remaining usage of network resources.

In one embodiment, the apparatus further comprises a UPF entity, not shown in the figures, wherein,

the UPF entity is used for monitoring the actual use condition of the network resources at the user plane, wherein the actual use condition of the network resources monitored by the user plane comprises the use duration and the actual traffic use amount when the UE uses one or more applications/services;

If the preset triggering condition is met, the actual use condition of the network resource meeting the triggering condition is sent to the second PCF entity;

and the second PCF entity is used for updating the network resource remaining allowable use condition in the UDR entity according to the actual use condition of the network resource meeting the triggering condition.

In one embodiment of the present disclosure, the UPF entity is configured to determine that a preset trigger condition is met if the usage time period is greater than or equal to a preset duration threshold, and/or determine that a preset trigger condition is met if a duration reporting period when the UE uses one or more applications/services ends, and/or determine that a preset trigger condition is met if a traffic reporting period when the UE uses one or more applications/services ends, and/or determine that a traffic usage actual is greater than or equal to a preset traffic usage threshold.

In one embodiment, the apparatus further comprises an SMF entity, not shown in the drawings, wherein,

a second PCF entity, configured to provide an SM policy to a session management function SMF entity before the UPF entity monitors actual use of network resources at a user plane;

and the SMF entity is used for indicating the UPF entity to send the actual use condition of the network resources monitored by the user plane.

In one embodiment of the present disclosure, a UPF entity is configured to send, to an SMF entity, actual usage of network resources monitored by a user plane through a packet forwarding control protocol;

and the SMF entity is used for controlling the update service to send the actual use condition of the network resources monitored by the user plane to the second PCF entity through the session management policy.

In one embodiment, the network resource remaining allowed amount of cases include a remaining allowed usage duration and a traffic remaining allowed usage amount for the UE to use one or more applications/services,

the second PCF entity is used for taking the difference value between the residual allowable traffic usage and the actual traffic usage meeting the triggering condition as the updated residual allowable traffic usage;

Fig. 8 shows a schematic diagram of an AM policy updating system according to an embodiment of the present disclosure. As shown in fig. 8, the AM policy updating system of the present embodiment includes a first PCF entity 801 and a UDR entity 802, wherein,

a first PCF entity 801, configured to subscribe, to a UDR entity 802, update notification information of remaining allowed use cases of network resources; receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity; updating the AM strategy according to the updated network resource remaining allowable use condition;

A UDR entity 802, configured to receive update notification information of remaining usage permission of subscribed network resources sent by the first PCF entity 801; updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the actual use condition of the network resource monitored by the second PCF entity; the updated network resource remaining usage allowance is sent to the first PCF entity 801, so that the first PCF entity 801 updates the AM policy according to the updated network resource remaining usage allowance.

Those skilled in the art will appreciate that the various aspects of the invention may be implemented as a system, method, or program product. Accordingly, aspects of the invention may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 900 according to such an embodiment of the invention is described below with reference to fig. 9. The electronic device 900 shown in fig. 9 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.

As shown in fig. 9, the electronic device 900 is embodied in the form of a general purpose computing device. Components of electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, and a bus 930 connecting the different system components (including the storage unit 920 and the processing unit 910).

Wherein the storage unit stores program code that is executable by the processing unit 910 such that the processing unit 910 performs steps according to various exemplary embodiments of the present invention described in the above-described "exemplary methods" section of the present specification. For example, the processing unit 910 may execute the subscription of the unified data warehouse function UDR entity to the update notification information of the remaining allowable use cases of network resources as shown in fig. 2; receiving updated network resource remaining allowable use conditions sent by the UDR entity, wherein the network resource remaining allowable use conditions are updated according to the actual use conditions of the network resources monitored by the second PCF entity; and updating the AM strategy according to the updated network resource remaining allowable use condition.

Illustratively, the processing unit 910 may further perform receiving update notification information of the remaining usage allowed for the subscribed network resources sent by the first PCF entity as shown in fig. 3; updating the network resource remaining allowable use condition, wherein the network resource remaining allowable use condition is updated according to the actual use condition of the network resource monitored by the second PCF entity; and sending the updated network resource remaining allowable use condition to the first PCF entity so that the first PCF entity updates the AM strategy according to the updated network resource remaining allowable use condition.

The storage unit 920 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 9201 and/or cache memory 9202, and may further include Read Only Memory (ROM) 9203.

The storage unit 920 may also include a program/utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

The bus 930 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 900 may also communicate with one or more external devices 940 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the system 900, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 950. Also, system 900 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through a network adapter 960. As shown in fig. 9, the network adapter 960 communicates with other modules of the electronic device 900 over the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 900, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. Fig. 10 illustrates a schematic diagram of a computer-readable storage medium provided in an embodiment of the present disclosure, as shown in fig. 10, on which a program product capable of implementing the method of the present disclosure is stored 1000. In some possible embodiments, the various aspects of the invention may also be implemented in the form of a program product comprising program code for causing a user equipment to carry out the steps according to the various exemplary embodiments of the invention as described in the "exemplary methods" section of this specification, when said program product is run on the user equipment.

A program product for implementing the above-described method according to an embodiment of the present invention may employ a portable compact disc read-only memory (CD-ROM) and comprise program code and may be run on a user device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. An AM policy updating method applied to a PCF entity of a first policy control function, comprising:

2. The method for updating AM policies according to claim 1, wherein said updating AM policies based on updated network resource remaining allowable usage includes, but is not limited to:

Upgrading or downgrading the maximum aggregate bit rate of the UE; or,

upgrading or downgrading the maximum aggregate bit rate of the UE slice; or,

the access/frequency selection priority index is adjusted.

3. The AM policy updating method as claimed in any one of claims 1-2, wherein the method further comprises:

4. An AM policy updating method applied to a UDR entity, comprising:

5. The AM policy updating method as claimed in claim 4, wherein said updating the remaining allowable use condition of network resources comprises:

6. The AM policy updating method as claimed in claim 5, wherein the method further comprises:

and if the actual flow usage is greater than or equal to a preset flow usage threshold, judging that a preset triggering condition is met.

7. The AM policy updating method according to claim 5, wherein before said UPF entity monitors actual usage of network resources at the user plane, said method further comprises:

8. The AM policy updating method according to claim 7, wherein the UPF entity sends actual usage of network resources satisfying the trigger condition to the second PCF entity, comprising:

9. The AM policy updating method of claim 5, wherein said network resource remaining allowed use condition comprises a remaining allowed use duration and a traffic remaining allowed use amount for the UE to use one or more applications/services,

10. An AM policy updating device applied to a first PCF entity, comprising:

11. An AM policy updating device applied to a UDR entity, comprising:

12. An AM policy updating system, characterized by comprising a first PCF entity and a UDR entity, wherein,

13. An electronic device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the AM policy updating method according to any one of claims 1-9 via execution of the executable instructions.

14. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the AM policy updating method according to any one of claims 1-9.