Method and device for maintaining service continuity

A business continuity and context technology, applied in the field of communication, can solve the problems of multiple system resources, cumbersome and complex signaling process, and needs to be improved, and achieve the effect of simplifying signaling process and reducing system load.

Inactive Publication Date: 2011-04-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that there is a signaling process between the old and new MSC / VLR and HLR in the normal tracking area update process, resulting in a relatively cumbersome and complicated signaling process, which takes up more system resources and needs to be improved.

Method used

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  • Method and device for maintaining service continuity
  • Method and device for maintaining service continuity

Examples

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Embodiment Construction

[0027] In the embodiment of the present invention, the existing VLR identification of the UE is transmitted through the context information, and the first MME (ie, the new MME) judges whether a connection has been established with the VLR corresponding to the VLR identification. If so, the first MME does not need to reselect The VLR and the process of registering with the HLR can directly initiate a location update process for the VLR. It can be seen that the process of reselecting the VLR and registering with the HLR is saved, that is, the signaling process between the old and new MSC / VLR and the HLR is saved, the signaling process is simplified, and the system load is reduced.

[0028] see figure 1 , the main method flow for maintaining business continuity in this embodiment is as follows:

[0029] Step 101: The first MME to which the UE moves receives the context information sent by the second MME from which the UE leaves, and the context information includes the VLR ident...

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Abstract

The invention discloses a method for maintaining service continuity, which is used for simplifying signaling flow and reducing system load. The method comprises the following steps: a first mobile management entity (MME) in which user equipment (UE) is relocated receives the context information sent by a second MME from which the UE leaves, wherein the context information comprises visitor location register (VLR) identities of the UE; the first MME judges whether a connection is established between the locality and VLRs corresponding to the VLR identities; and if so, the first MME initiates the location updating processes to the VLRs corresponding to the VLR identities via the established connection. The invention also discloses a device for realizing the method.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for maintaining service continuity. Background technique [0002] With the development of communication technologies, communication services are no longer limited to circuit domain services (Circuit Switch Service, CS), and evolved packet system (Evolved Packet System, EPS) services appear. A user equipment with EPS capability and CS capability can perform EPS network attachment and IMSI (International Mobile Subscriber Identity) network attachment. After the network is attached, if the MME (Mobility Management Entity) serving the UE (User Equipment) changes, there is no MSC (Mobile Switching Center) / VLR (Visited Location register) information, which leads to a problem. If the MME serving the UE changes and the new MME is connected to multiple MSC / VLRs, the new MME must reselect an MSC / VLR to serve the UE to ensure service continuity. At this time, the UE needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/04
Inventor 习建德赵国胜苏丽芳郑震铎
Owner DATANG MOBILE COMM EQUIP CO LTD
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