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Method, device and system for connection release

A technology for releasing connections and accessing network elements. Applied in the field of communications, it can solve the problems that PDN connections cannot be maintained and SIP TOPDN connections are not connected, and achieve the effect of facilitating rational utilization, facilitating network resources, and ensuring continuity.

Active Publication Date: 2015-02-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] After the SIPTO PDN connection is established, when the serving MME changes due to UE movement and the local IP access PDN connection cannot be maintained, there is no relevant solution for how to release the SIPTO PDN connection in the current prior art

Method used

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  • Method, device and system for connection release
  • Method, device and system for connection release
  • Method, device and system for connection release

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 2 As shown, this embodiment provides a method for releasing a connection, and the method is suitable for deployment on the mobility management network element serving the UE before the change when the serving mobility management network element changes due to UE movement. In addition, in this embodiment, the mobility management network element before the change is referred to as the source mobility management network element, and the mobility management network element that provides services for the UE after the change is called the target mobility management network element.

[0052] Step 101, when the mobility management network element serving the user changes, determine whether to release the SIPTO PDN connection according to the user's access information on the target side.

[0053] Step 102, if it is determined to release the SIPTO PDN connection, send a message to delete the SIPTO PDN connection to the user plane gateway.

[0054] It should be no...

Embodiment 2

[0057] Such as image 3 As shown, this embodiment provides a method for releasing a connection, and the method is suitable for being deployed on the mobility management network element that serves the UE after the change when the serving mobility management network element changes due to the movement of the UE. In addition, in this embodiment, the mobility management network element before the change is referred to as the source mobility management network element, and the mobility management network element that provides services for the UE after the change is called the target mobility management network element.

[0058] Step 201, when the mobility management network element serving the user changes, a message from the source side is received, and the message includes a first SIPTO indication information element used to indicate a PDN connection or a bearer.

[0059] Step 202: Determine whether there is a SIPTO PDN connection corresponding to the indication according to the...

Embodiment 3

[0064] Such as Figure 4 As shown, this embodiment provides a method for releasing a connection. The method mainly relies on the mobility management network element serving the UE before the change when the serving mobility management network element changes due to the movement of the UE. Specifically, in this embodiment and subsequent embodiments, the mobility management network element before the change is called the source mobility management network element, and the mobility management network element that provides services for the UE after the change is called the target mobility management network element , correspondingly, the access network element that provides services for the UE before the change is the source access network element, and the access network element that provides services for the UE after the change is the target access network element.

[0065] Step 301, UE sends a tracking area update request to a target access network element, and after receiving t...

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Abstract

An embodiment of the invention discloses a method, a device and a system for connection release and relates to the technical field of communication. The technical problem that network resources are unreasonably utilized due to the fact that SIPTO (selective IP traffic offload) PDN (packet data network) connection built in the prior art cannot be realized in time is solved. The method includes determining whether to release SIPTO PDN connection or not according to access information of the user on a target side when a mobility management network element of a service user changes; transmitting message for deleting the SIPTO PDN connection to a user side gateway if the SIPTO PDN connection is determined to release. The method, the device and the system for connection release in the embodiment are mainly applied to network resource optimization.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, device and system for releasing a connection. Background technique [0002] Femto cell is a low-power home wireless access service. It connects to standard wireless terminals through family-type wireless access points using licensed spectrum, and uses DSL and cable broadband access methods of household residents to access mobile operator network. With the evolution of wireless air interface technology, the air interface bandwidth is increasing rapidly, and the user plane and transmission resources of the core network are facing the problem of insufficient bandwidth resources. Network operators want to subdivide home wireless access services, and direct some low-value service flows locally, that is, local service flows can be connected to the Internet as soon as possible, so as to avoid occupying the operator's transmission resources and gateway capacity, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/06
Inventor 胡伟华张艳平
Owner HUAWEI TECH CO LTD