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Method, device and system for restoring a credit control session

A technology of credit control and recovery method, which is applied in the field of communication, and can solve problems such as credit control service cannot be restored, Txtimer timeout, etc.

Active Publication Date: 2019-08-27
NANJING ZHONGXING XIN SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a recovery method, device and system for a credit control session, which is used to solve the problem in the prior art that the abnormal interaction between the PGW gateway and the OCS server causes the Tx timer to expire. After the PGW gateway releases the credit control session, the credit control Business will not resume the problem

Method used

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  • Method, device and system for restoring a credit control session
  • Method, device and system for restoring a credit control session
  • Method, device and system for restoring a credit control session

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] This embodiment provides a recovery method for a credit control session executed on the PGW side of the public data network gateway. figure 1 It is a flow chart of the credit control session restoration method according to the first embodiment of the present invention.

[0030] Step S110, receiving user information and tunnel information sent by the online charging server OCS.

[0031] The user equipment accesses the PGW; the PGW establishes a credit control session corresponding to the user equipment between the PGW and the OCS; the PGW sends a credit control request to the OCS based on the credit control session, so that the OCS issues a credit quota for the user equipment; the PGW sends a credit control request to the OCS At the same time as the credit control request, start the Tx timer for the user equipment; due to the abnormal interaction between the PGW and the OCS, the PGW will not receive the credit control response returned by the OCS. After the Tx timer expi...

Embodiment 2

[0044] This embodiment provides a method for restoring a credit control session performed on the OCS side of the online charging server. In this embodiment, before the Tcc timer is triggered, the user information and tunnel information are sent to the PGW, so that the PGW restores the credit control session corresponding to the user equipment according to the user information and tunnel information.

[0045] figure 2 It is a flowchart of a credit control session restoration method according to the second embodiment of the present invention.

[0046] Step S210, before the Tcc timer triggers, send user information and tunnel information to the PGW.

[0047] Specifically, after receiving the credit control request message sent by the PGW, the OCS sends a credit control response message to the PGW. Due to the abnormal interaction between the PGW and the OCS, the PGW cannot receive the credit control response message.

[0048] At a predetermined moment before the Tcc timer is t...

Embodiment 3

[0055] This embodiment provides a credit control session restoration system.

[0056] The credit control session recovery system includes: public data network gateway PGW, online charging server OCS and user equipment.

[0057] The online charging server sends user information and tunnel information to the public data network gateway before the Tcc timer triggers; the public data network gateway receives the user information and tunnel information sent by the online charging server; the public data network gateway Searching for the bearer context of the user equipment according to the user information and tunnel information; the public data network gateway restores the credit control session corresponding to the user equipment according to the bearer context of the user equipment.

[0058] image 3 is an interaction sequence diagram of the credit control session restoration system according to the third embodiment of the present invention. pass image 3 The credit control s...

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Abstract

The invention discloses a credit control session recovery method, device and system. The steps performed by the public data network gateway side of the method include: receiving user information and tunnel information sent by the online charging server; searching for the bearer context of the user equipment according to the user information and tunnel information; credit control session. The steps performed on the online charging server side include: sending user information and tunnel information to the public data network gateway before the Tcc timer triggers, so that the public data network gateway restores the credit control session corresponding to the user equipment according to the user information and tunnel information. The present invention carries the user information and tunnel information of the user in the RAR message, so that the PGW can quickly restore the credit control session corresponding to the user equipment according to the user information and tunnel information of the user equipment, so that the credit control service of the user is no longer subject to The impact of previous link fluctuations.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, device and system for restoring a credit control session. Background technique [0002] Credit control failure handling is described in Request For Comments (RFC for short) 4006. This processing is performed between the user equipment, a public data network gateway (Public Data Network GateWay, PGW for short), and an online charging server (Online Charging System, OCS for short). This processing involves two timers, Tx timer and Tcctimer. [0003] Tx timer is set on PGW. The Tx timer is the length of time for the PGW to wait for the response from the OCS server after the PGW gateway sends a credit control request (Credit Control Request, CCR) to the OCS server. If the Tx timer times out, the PGW will control the user service to suspend or continue according to the Credit-Control-Failure-Handling parameter, and must release the resources related to the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L65/1066H04L9/40
Inventor 夏勇
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD
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