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Context acquisition method and equipment for user equipment (UE)

A technology of context and base station equipment, applied in the field of communication, can solve the problems of cumbersome process, low UE success rate, time extension, etc., to achieve the effect of improving success rate, reducing delay, and saving signaling interaction

Inactive Publication Date: 2012-02-08
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a UE context acquisition method and device, which are used to solve the problem in the prior art that the Unprepared node acquires the UE context process is cumbersome and time-prolonged, which leads to a low success rate of UE connection re-establishment

Method used

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  • Context acquisition method and equipment for user equipment (UE)
  • Context acquisition method and equipment for user equipment (UE)
  • Context acquisition method and equipment for user equipment (UE)

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Embodiment Construction

[0026] In view of the above-mentioned problems in the prior art, the embodiment of the present invention provides a UE context acquisition solution, so that the Unprepared node can acquire the UE context only through two X2 interface messages with the source node, thereby saving signaling interaction and reducing This reduces the time delay, thereby increasing the success rate of re-establishing the connection between the UE and the Unprepared node.

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] image 3 It shows a schematic flowchart of a UE re-connection in a target cell provided by an embodiment of the present invention. This process describes the target cell (such as image 3 After receiving the UE’s request for connection re-establishment in its cell, the cell B) in the cell does not store the context information of the UE and is connected to the cell (such as image 3 The cell A) obtain...

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Abstract

The invention discloses a context acquisition method and context acquisition equipment for user equipment (UE). The method comprises that: if a target base station does not store the context of the UE when receiving a radio resource control (RRC) connection reestablishment request message from the UE, the target base station transmits a radio link failure (RLF) indication message to a source base station, wherein the RLF indication message carries indication information requiring the feeding-back of the context of the UE; and the target base station receives a response message of the RLF indication message from the source base station, wherein the response message carries context, acquired according to the indication information by the source base station, of the UE. By the method and the equipment, the target base station not storing the context of the UE can acquire the context of the UE only by the interaction of the two messages, thereby reducing signaling interaction and further increasing the connection reestablishment success rate of the UE.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method and device for acquiring UE context. Background technique [0002] The topological structure of LTE (Long Term Evolution) mobile communication network is as follows: figure 1 As shown, compared with the traditional three-layer node network structure composed of Node B (Node B, NB), Radio Network Controller (RNC) and Core Network (Core Network, CN), the LTE network is evolved from The Node B (Evolution Node B, eNB) and the core network consist of a two-layer node network structure. The eNB not only has the functions of the original NB, but can also complete most of the functions of the original RNC, including: physical layer, MAC layer, scheduling, access control, bearer control, access mobility management, etc. Therefore, the two-layer network structure of LTE simplifies the network structure compared with the traditional three-layer network structure, whi...

Claims

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Application Information

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IPC IPC(8): H04W8/02H04W76/02
Inventor 金巴丁丁邵泽才
Owner CHINA MOBILE COMM GRP CO LTD
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