Switching method

A handover request and handover condition technology, which is applied in access restriction, electrical components, wireless communication, etc., can solve the problems affecting the quality of UE seamless communication and low success rate, and achieve the goal of improving the quality of seamless communication and increasing the success rate Effect

Inactive Publication Date: 2010-07-28
TD TECH COMM TECH LTD
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Problems solved by technology

Since the target network side can only make handover judgments based on the acquired single target CI, the su

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[0053] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0054] The handover method of the embodiment of the present invention is applied to intra-UMTS system migration or handover between UMTS system and GSM system. The source network side selects multiple cells from the cells adjacent to the source cell to join candidates according to the current measurement result reported by the UE. For the target cell set, the message containing the candidate target cell set information is sent to the CN, and the CN receives the message and performs corresponding processing and sends a message carrying the candidate target cell set information to the target network side. Judgment, determine whether there is a candidate target cell that meets the handover condition in the candidate target cell set, and if so, notif...

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Abstract

The invention discloses a switching method which is as follows: the target network side receives the relevant message of a switching request, which contains the candidate target district aggregation information, wherein the candidate target district aggregation comprises a plurality of candidate target districts selected according to the preset policy; judging whether the candidate target district aggregation includes a candidate target district which satisfies the switching requirement, and if yes, instructing the source network side to switch the user equipment which needs to be switched to the candidate target district which satisfies the switching requirement. With the method, the target network side can select a candidate target district satisfying the switching requirement for switching from the candidate target district aggregation which includes a plurality of candidate target districts. The method improves the success ratio of the switching of the user equipment, enables the user equipment to communicate normally in a new target district, and thereby improves the gapless communication quality of the user equipment in mobile state.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a switching method. Background technique [0002] In a wireless communication system, when a user equipment (UE, User Equipment) moves from the current cell (source cell) to another cell (target cell), and the target cell exceeds the wireless coverage of the current cell, in order to ensure the normal communication of the UE , it is necessary for the network side to initiate inter-cell handover to switch the current normal communication from the source cell to the target cell, so that the UE can perform wireless communication in the target cell without gaps. [0003] At present, the wireless communication system mainly includes the Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) based on the Radio Access Network Application Part (RANAP, Radio Access Network Application Part) protocol and the Global System for Mobile Com...

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Application Information

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IPC IPC(8): H04W36/30H04W48/18
Inventor 姚立章小平欧阳明光
Owner TD TECH COMM TECH LTD
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