CN117440334A - Updating method of non-session management related strategy, related network element and communication system - Google Patents
Updating method of non-session management related strategy, related network element and communication system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0894—Policy-based network configuration management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/24—Accounting or billing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The disclosure provides a method for updating a non-session management related policy, a related network element and a communication system, and relates to the field of wireless communication. The method comprises the steps that a policy control function network element related to user equipment subscribes notification information of the state change of a policy counter to a charging function network element; the method comprises the steps that a policy control function network element related to user equipment receives report information of policy counter state change sent by a charging function network element; and the strategy control function network element related to the user equipment updates at least one of access and mobility strategies and user equipment strategies according to the report information of the state change of the strategy counter. The new interface between PCF and CHF related to UE is supported, and the control requirement of non-session management related strategy based on expenditure limit is satisfied, so that more flexible adjustment of the non-session management related strategy is realized.
Description
Technical Field
The present disclosure relates to the field of wireless communications, and in particular, to a method for updating a non-session management related policy, a policy control function network element related to a user equipment, a charging function network element, and a communication system.
Background
With the development of 5GC (5G Core, fifth generation mobile communication Core network), session-related PCF (Policy Control Function ) network elements may make adjustments to session management (Session Management, SM) related policies based on the expense limit information in charging function (Charging Function, CHF) network elements.
However, the PCF network element related to the session and the PCF network element related to the UE (User Equipment) are different PCF network elements, and the interfaces supported by the PCF network elements are different. At present, 5GC does not support interaction between PCF network elements related to UE and CHF network elements, and adjustment of non-session management related policies cannot be achieved.
Disclosure of Invention
In the embodiment of the disclosure, a new interface is additionally arranged between a PCF (physical state control) network element related to UE (user equipment) and a CHF (user equipment) network element, the PCF network element related to the UE subscribes notification information of the state change of a policy counter to the CHF network element, receives the report information of the state change of the policy counter sent by the CHF network element, and updates non-session management related policies such as access and mobility policies, user equipment policies and the like according to the report information of the state change of the policy counter. The control requirement of the non-session management related strategy based on the expenditure limit is met, and more flexible adjustment of the non-session management related strategy is realized.
Some embodiments of the present disclosure provide a method for updating a non-session management related policy, including:
the method comprises the steps that a policy control function network element related to user equipment subscribes notification information of the state change of a policy counter to a charging function network element;
the method comprises the steps that a policy control function network element related to user equipment receives report information of policy counter state change sent by a charging function network element;
and the strategy control function network element related to the user equipment updates at least one of access and mobility strategies and user equipment strategies according to the report information of the state change of the strategy counter.
In some embodiments, further comprising: the user equipment related policy control function network element obtains subscription information, and the subscription information shows that the user equipment related policy control function network element can make policy decisions based on the policy counter state information in the charging function network element.
In some embodiments, the reporting information of the policy counter state change includes whether a payout reaches a threshold.
In some embodiments, updating the access and mobility policies includes: at least one of the aggregate maximum bit rate of the user device, the aggregate maximum bit rate of the network slice is upgraded or downgraded.
In some embodiments, updating the user equipment policy includes: updating the user routing policy.
In some embodiments, updating the access and mobility policies includes: and degrading the access and mobility policies according to the report information of the state change of the policy counter, if the expenditure reaches a threshold value, or upgrading the access and mobility policies if the expenditure does not reach the threshold value.
In some embodiments, updating the user equipment policy includes: and according to the report information of the state change of the strategy counter, deleting the first user routing strategy accessing the preset resource and issuing a new second user routing strategy if the expenditure reaches a threshold value.
In some embodiments, further comprising:
if the access and mobility policies are updated, the policy control function network element related to the user equipment sends the updated access and mobility policies to the access and mobility management function network element;
if the user equipment policy is updated, the user equipment related policy control function network element sends the updated user equipment policy to the user equipment through the access and mobility management function network element.
In some embodiments, the policy control function network element related to the user equipment subscribes to the notification information of the state change of the policy counter to the charging function network element through Nchf support limit control subscription signaling.
In some embodiments, the policy control function network element related to the user equipment receives the report information of the state change of the policy counter sent by the charging function network element through the Nchf supporting the limit control signaling.
Some embodiments of the present disclosure provide a method for updating a non-session management related policy, including:
the charging function network element receives notification information of the state change of a subscription policy counter sent by a policy control function network element related to user equipment;
and when the state of the policy counter changes, the charging function network element sends report information of the state change of the policy counter to the policy control function network element related to the user equipment.
In some embodiments, the reporting information of the policy counter state change includes whether a payout reaches a threshold.
In some embodiments, the charging function network element supports limiting control subscription signaling through Nchf, and receives notification information of subscription policy counter state change sent by the policy control function network element related to the user equipment.
In some embodiments, when the state of the policy counter changes, the charging function network element sends report information of the state change of the policy counter to the policy control function network element related to the user equipment through the Nchf supporting the limiting control signaling.
Some embodiments of the present disclosure provide a policy control function network element related to a user equipment, including: a memory; and a processor coupled to the memory, the processor configured to perform the method of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a charging function network element, including: a memory; and a processor coupled to the memory, the processor configured to perform the method of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure propose a communication system comprising: a policy control function network element related to the user equipment and a charging function network element.
Some embodiments of the present disclosure propose a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method described in the embodiments.
Drawings
The drawings that are required for use in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description with reference to the accompanying drawings.
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 inventive faculty.
Fig. 1 illustrates a flow diagram of a method of updating a non-session management related policy according to some embodiments of the present disclosure.
Fig. 2 illustrates a schematic diagram of a communication system 200 in accordance with some embodiments of the present disclosure.
Fig. 3 illustrates a schematic structure of a user equipment related policy control function network element 210 according to some embodiments of the present disclosure.
Fig. 4 illustrates a schematic structure of a charging function network element 220 according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Unless specifically stated otherwise, the descriptions of "first," "second," and the like in this disclosure are used for distinguishing between different objects and are not used for indicating a meaning of size or timing, etc.
Fig. 1 illustrates a flow diagram of a method of updating a non-session management related policy according to some embodiments of the present disclosure.
As shown in fig. 1, the method for updating the non-session management related policy of this embodiment includes:
in step 110, a policy control function (PCF for UE) network element associated with the user equipment obtains subscription information, where the subscription information indicates that the policy control function network element associated with the user equipment is capable of making policy decisions based on policy counter status information in the charging function network element.
In step 120, the policy control function network element associated with the user equipment subscribes to the charging function network element for notification information of the change in state of the policy counter.
The policy control function network element related to the user equipment subscribes to the notification information of the state change of the policy counter to the charging function network element through an Nchf supporting limit control subscription (nchf_specinglimit control_subsciene) signaling.
In step 130, the charging function network element receives the notification information of the state change of the subscription policy counter sent by the policy control function network element related to the user equipment, and the charging function network element determines whether the state of the policy counter is changed.
Whether the policy counter status changes includes whether the user's payout reaches a threshold, e.g., whether the current cost reaches the user's monthly support budget, and whether the remaining balance reaches a limit.
In step 140, the charging function network element sends reporting information of the policy counter state change to the policy control function network element related to the user equipment when the policy counter state changes, for example, the expenditure of the user reaches a threshold value.
And the policy control function network element related to the user equipment receives report information of the state change of the policy counter sent by the charging function network element through an Nchf support limit control (Nchf_SPendingLimitControl) signaling.
The report information of the policy counter status change includes whether the payout reaches a threshold.
In step 150, the Policy control function network element related to the user equipment receives the report information of the state change of the Policy counter sent by the charging function network element, and updates at least one non-session management related Policy of the access and mobility policies (Access and Mobility Policy, AM Policy) and the user equipment policies according to the report information of the state change of the Policy counter.
The report information of the policy counter status change includes whether the payout reaches a threshold.
And degrading the access and mobility policies according to the report information of the state change of the policy counter, if the expenditure reaches a threshold value, or upgrading the access and mobility policies if the expenditure does not reach the threshold value.
Updating access and mobility policies includes: at least one of an aggregate maximum bit rate (UE-AMBR) of the User Equipment, UE-AMBR, and an aggregate maximum bit rate (slice-AMBR) of the network slice is upgraded or downgraded.
Updating the user equipment policy includes: the user routing policy is updated (UE Route Selection Policy, urs).
And according to the report information of the state change of the strategy counter, deleting the first user routing strategy accessing the preset resource and issuing a new second user routing strategy if the expenditure reaches a threshold value.
For example, the UE spends a certain cost, the network may issue a specific urs to allow the UE to access resources such as a specific DNN/S-nsai, and when the cost reaches a threshold, the CHF reports to the PCF for the UE, which may send a message to the UE to delete this specific urs so that the UE can no longer access the specific DNN/S-nsai.
The urs policy is used by the UE to determine whether a detected application can be associated with an established protocol data unit (PDU, protocol Data Unit) session, whether non-3 GPP access outside of the PDU session can be offloaded, or whether the establishment of a new PDU session can be triggered.
Each urs policy contains a traffic descriptor that determines when the urs policy applies. When each component in the service descriptor matches the corresponding information from the application, it is determined that the urs policy is applicable.
The urs rules include a traffic descriptor specifying matching conditions and one or more of the following components:
a) SSC mode selection strategy (sscmsmsp: SSC Mode Selection Policy): the UE uses the policy to associate the matching application with the SSC (session and service continuity ) pattern.
b) Network slice selection policy (NSSP: network Slice Selection Policy): is used by the UE to associate the matched application with the S-nsai (Single Network Slice Selection Assistance Information ).
c) DNN selection strategy: the UE uses the policy to associate the matching application with the DNN (Data Network Name ).
d) PDU session type policy: the UE uses the policy to associate the matched application with the PDU session type.
e) Non-seamless offload policies: the UE uses this policy to determine that the matching application should be offloaded to non-3 GPP access (i.e., outside of the PDU session) non-seamlessly.
f) Access type preference: if the UE needs to establish a PDU session for the matched application, this indicates the preferred access type (3 GPP or non-3 GPP or multiple access).
In step 160, if at least one of the access and mobility policy and the user equipment policy is updated, the user equipment related policy control function network element sends the updated at least one of the access and mobility policy and the user equipment policy to the access and mobility management function (Access and Mobility Management Function, AMF) network element.
If the access and mobility policies are updated, the policy control function network element related to the user equipment sends the updated access and mobility policies to the access and mobility management function network element; if the user equipment policy is updated, the user equipment related policy control function network element sends the updated user equipment policy to the user equipment through the access and mobility management function network element.
The embodiment supports a new interface between the PCF related to the UE and the CHF, the PCF related to the UE can be used as a consumer of the CHF, and the PCF related to the UE can acquire report information of a strategy counter state in the CHF through the new interface (when the residual balance reaches a limit value), and can update an AM strategy and a UE strategy according to the report information, such as degrading UE-AMBR and UE slice-AMBR or updating URSP rules, thereby meeting the control requirement of a non-session management related strategy based on expenditure limitation and realizing more flexible adjustment of the non-session management related strategy.
Fig. 2 illustrates a schematic diagram of a communication system 200 in accordance with some embodiments of the present disclosure.
As shown in fig. 2, the communication system 200 of this embodiment includes: user equipment related policy control function network element 210 and charging function network element 220.
Fig. 3 illustrates a schematic structure of a user equipment related policy control function network element 210 according to some embodiments of the present disclosure.
As shown in fig. 3, the policy control function network element 210 related to the user equipment of this embodiment includes: a memory 211 and a processor 212 coupled to the memory 211, the processor 212 being configured to perform the method of updating the non-session management related policy in any of the foregoing embodiments based on instructions stored in the memory 211.
The method comprises the steps that a policy control function network element related to user equipment subscribes notification information of the state change of a policy counter to a charging function network element; the method comprises the steps that a policy control function network element related to user equipment receives report information of policy counter state change sent by a charging function network element; and the strategy control function network element related to the user equipment updates at least one of access and mobility strategies and user equipment strategies according to the report information of the state change of the strategy counter.
The user equipment related policy control function network element obtains subscription information, and the subscription information shows that the user equipment related policy control function network element can make policy decisions based on the policy counter state information in the charging function network element.
And the strategy control function network element related to the user equipment performs degradation on the access and mobility strategies according to the report information of the state change of the strategy counter, if the expenditure reaches a threshold value, or performs upgrading on the access and mobility strategies if the expenditure does not reach the threshold value.
And the strategy control function network element related to the user equipment deletes the first user routing strategy accessing the preset resource according to the report information of the state change of the strategy counter, and issues a new second user routing strategy if the expenditure reaches a threshold value.
If the access and mobility policies are updated, the policy control function network element related to the user equipment sends the updated access and mobility policies to the access and mobility management function network element; if the user equipment policy is updated, the user equipment related policy control function network element sends the updated user equipment policy to the user equipment through the access and mobility management function network element.
The user equipment related policy control function network element 210 may further comprise an input output interface 213, a network interface 214, a storage interface 215, etc. These interfaces 213, 214, 215 and the memory 211 and the processor 212 may be connected, for example, by a bus 216.
Fig. 4 illustrates a schematic structure of a charging function network element 220 according to some embodiments of the present disclosure.
As shown in fig. 4, the charging function network element 220 of this embodiment includes: a memory 221 and a processor 222 coupled to the memory 221, the processor 222 being configured to perform the method of any of the previous embodiments based on instructions stored in the memory 221.
The charging function network element receives notification information of the state change of a subscription policy counter sent by a policy control function network element related to user equipment; and when the state of the policy counter changes, the charging function network element sends report information of the state change of the policy counter to the policy control function network element related to the user equipment.
And the charging function network element supports the limit control subscription signaling through the Nchf and receives notification information of the state change of the subscription policy counter sent by the policy control function network element related to the user equipment.
When the state of the policy counter changes, the charging function network element transmits report information of the state change of the policy counter to the policy control function network element related to the user equipment through the Nchf support limit control signaling.
The charging function network element 220 may also include an input-output interface 223, a network interface 224, a storage interface 225, etc. These interfaces 223, 224, 225, as well as the memory 221 and the processor 222, may be connected by a bus 226, for example.
The memory may include, for example, system memory, fixed nonvolatile storage media, and the like. The system memory stores, for example, an operating system, application programs, boot Loader (Boot Loader), and other programs.
The processor may be implemented as discrete hardware components such as a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA), or other programmable logic device, discrete gates, or transistors.
The input/output interface provides a connection interface for input/output devices such as a display, a mouse, a keyboard, a touch screen and the like. The network interface provides a connection interface for various networking devices. The storage interface provides a connection interface for external storage devices such as an SD card and a U disk. The bus may employ any of a variety of bus architectures. For example, bus structures include, but are not limited to, an industry standard architecture (Industry Standard Architecture, ISA) bus, a micro channel architecture (Micro Channel Architecture, MCA) bus, and a peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.
It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to enable any modification, equivalent replacement, improvement or the like, which fall within the spirit and principles of the present disclosure.
Claims (16)
1. A method for updating a non-session management related policy, comprising:
the method comprises the steps that a policy control function network element related to user equipment subscribes notification information of the state change of a policy counter to a charging function network element;
the method comprises the steps that a policy control function network element related to user equipment receives report information of policy counter state change sent by a charging function network element;
and the strategy control function network element related to the user equipment updates at least one of access and mobility strategies and user equipment strategies according to the report information of the state change of the strategy counter.
2. The method as recited in claim 1, further comprising:
the user equipment related policy control function network element obtains subscription information, and the subscription information shows that the user equipment related policy control function network element can make policy decisions based on the policy counter state information in the charging function network element.
3. The method of claim 1, wherein the reporting information of the policy counter state change includes whether a payout reaches a threshold.
4. The method of claim 1, wherein updating access and mobility policies comprises:
at least one of the aggregate maximum bit rate of the user device, the aggregate maximum bit rate of the network slice is upgraded or downgraded.
5. The method of claim 1, wherein updating the user device policy comprises: updating the user routing policy.
6. The method of claim 1, wherein updating access and mobility policies comprises:
and degrading the access and mobility policies according to the report information of the state change of the policy counter, if the expenditure reaches a threshold value, or upgrading the access and mobility policies if the expenditure does not reach the threshold value.
7. The method of claim 1, wherein updating the user device policy comprises:
and according to the report information of the state change of the strategy counter, deleting the first user routing strategy accessing the preset resource and issuing a new second user routing strategy if the expenditure reaches a threshold value.
8. The method as recited in claim 1, further comprising:
if the access and mobility policies are updated, the policy control function network element related to the user equipment sends the updated access and mobility policies to the access and mobility management function network element;
if the user equipment policy is updated, the user equipment related policy control function network element sends the updated user equipment policy to the user equipment through the access and mobility management function network element.
9. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the method comprises the steps that a policy control function network element related to user equipment supports limiting control subscription signaling through Nchf, and subscribes notification information of state change of a policy counter to a charging function network element; or,
and the policy control function network element related to the user equipment receives the report information of the state change of the policy counter sent by the charging function network element through the Nchf supporting limit control signaling.
10. A method for updating a non-session management related policy, comprising:
the charging function network element receives notification information of the state change of a subscription policy counter sent by a policy control function network element related to user equipment;
and when the state of the policy counter changes, the charging function network element sends report information of the state change of the policy counter to the policy control function network element related to the user equipment.
11. The method of claim 10, wherein the reporting information of the policy counter state change includes whether a payout reaches a threshold.
12. The method of claim 10, wherein the step of determining the position of the first electrode is performed,
the charging function network element supports limiting control subscription signaling through Nchf, and receives notification information of subscription policy counter state change sent by the policy control function network element related to the user equipment; or,
when the state of the policy counter changes, the charging function network element transmits report information of the state change of the policy counter to the policy control function network element related to the user equipment through the Nchf support limit control signaling.
13. A user equipment related policy control function network element comprising:
a memory; and a processor coupled to the memory, the processor configured to perform the method of any of claims 1-9 based on instructions stored in the memory.
14. A charging function network element comprising:
a memory; and a processor coupled to the memory, the processor configured to perform the method of any of claims 10-12 based on instructions stored in the memory.
15. A communication system, comprising:
the user equipment related policy control function network element of claim 13, and
the charging function network element of claim 14.
16. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of claims 1-12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210831568.2A CN117440334A (en) | 2022-07-15 | 2022-07-15 | Updating method of non-session management related strategy, related network element and communication system |
| PCT/CN2023/095570 WO2024012053A1 (en) | 2022-07-15 | 2023-05-22 | Updating method for non-session management related policy, related network element and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210831568.2A CN117440334A (en) | 2022-07-15 | 2022-07-15 | Updating method of non-session management related strategy, related network element and communication system |
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| CN117440334A true CN117440334A (en) | 2024-01-23 |
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| CN110831044B (en) * | 2018-08-10 | 2023-09-05 | 中国移动通信有限公司研究院 | Processing method, device and equipment of routing strategy |
| CN110972090B (en) * | 2018-09-29 | 2022-04-15 | 中兴通讯股份有限公司 | PCF + PCRF selection method, AMF, BSF and storage medium |
| CN109361526B (en) * | 2018-10-26 | 2021-07-13 | 中国联合网络通信集团有限公司 | Policy-controlled routing method, PCRF/PCF and DRA |
| CN115039425A (en) * | 2020-02-03 | 2022-09-09 | 瑞典爱立信有限公司 | Extending Npcf _ EventExposure by using a condition monitoring event |
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