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Mobility managing method and system

A management method and mobility technology, applied in the communication field, can solve problems such as inability to achieve business continuity, and achieve the effect of reducing signaling burden

Active Publication Date: 2012-05-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the UE moves between the 3GPP system and the NON-3GPP system in the IDLE state, the user plane context of the 3GPP system and the user plane context of the NON-3GPP system exist on the PDN GW at the same time, and the PDN GW does not know how to route the datagram at this time , business continuity cannot be achieved

Method used

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  • Mobility managing method and system
  • Mobility managing method and system
  • Mobility managing method and system

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Embodiment Construction

[0022] When the UE moves between two communication systems, the embodiment of the present invention reduces the frequent execution of the Attach process and the detach process by retaining the context in one communication system, and preferentially selects the context of another communication system in another communication system To avoid context confusion on the PDN GW.

[0023] The context in this embodiment includes the control plane context and the user plane context of each communication system. Areas in this embodiment include location areas, routing areas, and tracking areas (Tracking Area, TA), etc., and corresponding area identifiers include location area identifiers, routing area identifiers, and tracking area identifiers (Tracking Area IDs). TA is used as an example for description.

[0024] see figure 1 , the main flow of the mobility management method in this embodiment is as follows:

[0025] Step 101: An inter-system handover is initiated based on the moveme...

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Abstract

The invention discloses a mobile management method, which is used for realizing the continuity of service when moving among different systems under an SAE framework and saving the system resources. The method comprises the following steps: after user equipment moves to a second communication system from a first communication system, the context of the second communication system is established for the user equipment, and the context of the first communication system of the user equipment is held; during the transmission process of downlink data, the context of the second communication system is used firstly according to configuration information. The invention further discloses a system framework.

Description

technical field [0001] The invention relates to the communication field, in particular to a mobility management method and system. Background technique [0002] With the in-depth research on the communication network, in addition to the research on the evolution of the radio access network, the research on the evolution of the system architecture is also carried out, which is defined as the system architecture evolution (System Architecture Evolution, SAE). Since the SAE system architecture is required to support the 3rd Generation Partnership Project (3GPP) system and non-3GPP (NON-3GPP) system, there is a problem of frequent movement between different systems for end users. The SAE system architecture is required to maintain service continuity during handover, minimize handover delay, and quickly establish the UE's control plane and user plane. [0003] Regarding the existing non-3GPP system, when the user equipment (User Equipment, UE) enters the non-3GPP system, the UE ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04W8/08H04L12/66H04W36/00
Inventor 徐晖姜怡华
Owner DATANG MOBILE COMM EQUIP CO LTD