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Cell switching control method of high speed moving terminal

A cell handover, high-speed mobile technology, applied in connection management, wireless communication, electrical components, etc., can solve problems such as call interruption, achieve timely handover, and improve the effect of handover success rate

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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Problems solved by technology

[0007] However, considering the fast-moving characteristics of the GSMR system, if the network side needs to perform handover by judging multiple measurement reports within a period of time, it may happen that the train has moved out of the serving cell but the handover has not been completed, resulting in call interruption

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  • Cell switching control method of high speed moving terminal
  • Cell switching control method of high speed moving terminal
  • Cell switching control method of high speed moving terminal

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Embodiment Construction

[0034] The present invention relates to a cell handover control method for a high-speed mobile terminal, the method comprising: when the terminal moves away from the current serving base station and approaches the expected target cell with a moving speed higher than a set value, the network side judges whether the signal of the target cell satisfies the following conditions: Pre-handover conditions, and start pre-handover when the handover conditions are met, and establish channels in the target cell.

[0035] Such as figure 1 In the chained overlay network shown, each cell has two neighbors, and the base station controller (Base Station Controller, BSC) saves the neighbor relationship table and maintains the cell direction link list as shown below.

[0036] CELL 1 ->CELL 2 ->CELL 3 ->...CELL n A-->B direction

[0037] CELL n ->CELL (n-1) ->CELL (n-2) ->...CELL 1 B-->A direction.

[0038] Due to the nature of track motion in rail transportation system...

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Abstract

The present invention provides high speed mobile terminal cell switchover control method. Said method includes when terminal moves away current service base station at higher set traveling speed and approaches predicted target cell, network side judges target cell signal whether satisfying pre-switching condition, if satisfying then starting up pre-switching and establishing channel in target cell. Said invention realizes high speed mobile terminal switching through predetermining mobile terminal travel direction, pre-applying channel resource in target cell and establishing channel.

Description

technical field [0001] The invention relates to a cell switching control method in wireless communication technology, in particular to a cell switching control method suitable for users moving at high speed. Background technique [0002] In a global system for mobile communication (Global System for Mobile Communication, GSM), as the terminal moves, the network side often needs to perform a handover operation to change the serving cell of the terminal. Cell handover is usually initiated by the network. Generally, the signal strength and signal quality of the current serving cell and neighboring cells are obtained according to the measurement report reported by the terminal, and then the handover operation is triggered by a certain handover decision algorithm. [0003] In transportation operations such as railways, highways, and rivers, trains, cars, and ships usually move quickly in one direction. Therefore, when wireless mobile communication is implemented, it can be handle...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/32H04W76/04
Inventor 杨长东王斐李胜利
Owner HUAWEI TECH CO LTD
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