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A method and a device for removing Gx interface residual sessions

An interface and session detection technology, applied in the field of LTE mobile communication, can solve problems such as IP-CAN session residue, waste of system resources, and influence on normal business, and achieve stable LTE service, guarantee of communication business function, optimization of management method and processing mechanism Effect

Active Publication Date: 2019-05-10
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the number of CCR-I and CCR-T requests remains the same, and there will be no residual IP-CAN sessions. However, the operating environment of the current network is complex, and a large number of CCR-I message requests will be triggered during UE services. When abnormal conditions occur, the PGW The number of CCR-T message requests sent to PCRF is less than the number of corresponding CCR-I message requests, which leads to residual IP-CAN sessions. Too many residual sessions not only waste system resources, but also seriously affect the normal business.

Method used

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  • A method and a device for removing Gx interface residual sessions
  • A method and a device for removing Gx interface residual sessions
  • A method and a device for removing Gx interface residual sessions

Examples

Experimental program
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Embodiment 1

[0047] Such as figure 2 As shown, this embodiment provides a method for clearing residual sessions on the Gx interface, including:

[0048] S100. Detect whether the CCR-I message sent by the PGW triggered by the UE carries an initial attachment identifier, and determine whether the UE is attached for the first time;

[0049] S200. If it is determined that the UE is attached for the first time, clear the residual user session context information of the user associated with the CCR-I message.

[0050] When a UE attaches to the network for the first time, under normal circumstances, there is no established IP-CAN session for the UE. If there is an IP-CAN session for the UE, it indicates that the UE was attached to the network last time. There is residual IP-CAN session context information that has not been deleted, that is, the session establishment of the UE was abnormal when it attached to the network last time. Therefore, when it is judged that a certain UE is attached for th...

Embodiment 2

[0072] Such as Figure 5 As shown, based on the same inventive concept, this embodiment also provides a device for clearing residual sessions on the Gx interface, including:

[0073] The residual session detection module 100 is configured to detect whether the CCR-I message sent by the PGW under the trigger of the UE carries an initial attachment identifier, and determine whether the UE is attached for the first time;

[0074] The session processing module 200 is configured to clear the residual user session context information of the user associated with the CCR-I when it is determined that the UE is attached for the first time.

[0075] When a UE attaches to the network for the first time, under normal circumstances, there is no established IP-CAN session for the UE. If there is an IP-CAN session for the UE, it indicates that the UE was attached to the network last time. There is residual IP-CAN session context information that has not been deleted, that is, the session est...

Embodiment 3

[0100] Based on the same inventive concept, this embodiment provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in Embodiment 1 are implemented. Based on the same reasons above, it can recover system resources in a timely and reasonable manner, increase the robustness and stability of PCRF network elements and EPC systems, and provide operators with more stable and continuous LTE services. It can also improve the management of Gx interface sessions and optimize The management method and processing mechanism of the session improve the fault-tolerant ability of the session established by the Gx interface.

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Abstract

The invention relates to a method and a device for removing a Gx interface residual session. The method comprises the following steps: Detecting whether the CCR-I message sent by the PGW under the trigger of the UE carries the initial attachment identifier., and determining whether the UE is attached for the first time; If it is determined that the UE is attached for the first time, Clearing the residual user session context information of the user associated with the CCR-I message. According to the invention, the method can achieve the timely detection of the information, System resources arereasonably recovered, the robustness and stability of a PCRF network element and an EPC system are improved, more stable and continuous LTE services are provided for operators, meanwhile, managementof Gx interface sessions can be perfected, the management method and processing mechanism of the sessions are optimized, and the fault-tolerant capability of Gx interface session establishment is improved.

Description

technical field [0001] The invention relates to the technical field of LTE mobile communication, in particular to a method and a device for clearing residual sessions of a Gx interface. Background technique [0002] The trend of mobile, broadband and IP-based telecommunication technology services is becoming more and more obvious. Mobile communication technology is in a critical period of network technology evolution. At this time, LTE (Long Term Evolution, Long Term Evolution) came into being. As a unified standard for next-generation mobile communications, LTE has multiple advantages such as high spectral efficiency, high peak rate, high mobility, and flat network architecture. As an LTE core network, EPC provides a platform for the evolution to a converged network. It can provide a variety of wireless access technologies and services, and can support the seamless switching of these services between these wireless access technologies; it can realize the flatness of the net...

Claims

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Application Information

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IPC IPC(8): H04W76/34H04L29/08H04W92/06
Inventor 陈林龙帅福利陈芳
Owner COMBA TELECOM SYST CHINA LTD
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