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Method, controller and gateway capable of ensuring continuity of business data

A business data and controller technology, applied in the field of communication, can solve the problems of increased network load and increased delay of data service transmission.

Inactive Publication Date: 2015-08-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method, a controller and a gateway to ensure the continuity of business data, which can solve the problems that the non-optimal path will cause the network load to increase and the data service transmission delay to increase.

Method used

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  • Method, controller and gateway capable of ensuring continuity of business data
  • Method, controller and gateway capable of ensuring continuity of business data
  • Method, controller and gateway capable of ensuring continuity of business data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] According to the description of a preferred process step in the SIPTO scenario of the present invention as follows:

[0054] Step 1. During the process involving S-GW relocation, after the controller receives a session establishment request indicating that S-GW relocation is required, it determines whether the path including the target S-GW is the optimal path, that is, whether the LGW is the optimal path. good gateway;

[0055] It should be noted that when the user moves to the service area of ​​the target S-GW, the user passes through the network element on the wireless side to the target S-GW. This is the optimal path. The reason for the non-optimal path is that the local gateway is not the optimal local gateway .

[0056] Step 2, if it is not the optimal path, then the controller sends a query request message to the local gateway to query whether there is user data being transmitted within a period of time;

[0057] Step 3, after the time arrives, the local gatewa...

Embodiment 2

[0086] The present invention is also applicable to non-SIPTO roaming scenarios or scenarios of interworking with traditional networks, assuming that the visited network is based on SDN-based EPC (Evolved Packet Core, Evolved Packet Core Network) architecture, and the home network is traditional EPC architecture or SDN-based EPC Architecture, according to the present invention can select the optimal gateway for the user.

[0087] A process step according to the present invention is described as follows:

[0088] Step 1, the controller in the visited network detects whether the S-GW or P-GW currently serving the user is the optimal gateway;

[0089] Step 2. If the controller detects that the S-GW or PGW is not the optimal gateway, the controller sends a query request message to the S-GW (because it is a roaming scenario, and the PGW is not within the control range of the controller) to check whether there are users in the current period data is being transferred;

[0090] Step...

Embodiment 3

[0102] The present invention is also applicable to the scenario of selecting the optimal gateway for the user considering the load balancing of the P-GW. Considering the load balancing of P-GWs, the controller selects a relatively idle P-GW to serve users. For a user accessing an overloaded P-GW, check whether there is data transmission within a certain period of time. If there is no data transmission, the controller sends a re-establishment instruction message to the MME, and the MME initiates the PDN connection disconnection process, and then the user re-initiates to the idle P-GW. - The PDN connection establishment process of the GW.

[0103] According to another process step description of the present invention:

[0104] Step 1, the controller regularly detects the load of the P-GW;

[0105] Step 2, the controller sends a query request message to the P-GW in the overload state to query whether user data is being transmitted within a period of time;

[0106] Step 3, afte...

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Abstract

A method, controller, and gateway for ensuring service data continuity, the method comprising: if the controller determines that the path / local gateway to which the terminal PDN is connected is not optimal, said controller querying a universal gateway whether or not there is data transmission; if the query result is that there is no data transmission, said controller alerting the MME to initiate a PDN connection reestablishment process.

Description

technical field [0001] The invention relates to the field of communication, in particular to a method, a controller and a gateway for ensuring service data continuity when a user executes SIPTO. Background technique [0002] SIPTO (Selected IP Traffic Offload, selected IP traffic offload) defined in 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) is a method of offloading specific services near the location where the user is attached to the access network. method. Specifically, in addition to supporting the access of the mobile core network, the mobile communication system (including the home base station system) can also support the IP offload function. Realize the local access of the mobile terminal to other IP devices in the home network or the Internet. [0003] Software Defined Network (Software Defined Network, SDN) is a new network innovation architecture. Its core technology OPENFLOW (Open Flow) realizes flexible control of network tra...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04W76/06
CPCH04W76/19H04W76/25
Inventor 毕以峰汪军田甜王静李玉宏李琳
Owner ZTE CORP
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