A cross-regional shifting method of traveling carriage initiative mobile communication system

Abstract

The invention provides a mobile station handoff method in an active mobile communication system of a mobile station. In the method, when being required to be switched, the mobile station broadcasts an inquiry burst to the surrounding cells which report the signal quality of the received inquiry burst to a base station controller which queues the signal quality of the inquiry burst; the cell corresponding to the inquiry burst with the best signal quality is the target cell to which the mobile station is to be switched; the base station controller informs the target cell of preparing to receiveand switch the mobile station and consults with the target cell a channel to be used after the mobile station is switched; after that, the base station controller informs the mobile station to switchto the selected target cell through a source cell, and the mobile station carries out a service transmission in the target cell by the channel which is consulted by the base station controller and the target cell. By adopting the mobile station switching method of the invention, under the assist of the base station controller, the mobile station can achieve the handoff faster and more reliably, effectively solves the problem of long switching time and reduces the switching interruption rate.

Description

technical field [0001] The invention relates to a handover method in a mobile communication system, in particular to a handover method for a mobile station in a mobile communication system in which the mobile station takes the initiative. Background technique [0002] In a traditional mobile communication system, a beacon channel signal is continuously transmitted by a base station. During the moving process, the mobile station monitors the signal quality of the beacon channel of the surrounding cells. When the signal quality of the beacon channel of the source cell drops below the handover threshold, the beacon channel of the surrounding cell with the best signal quality is used to replace the signal quality of the source cell. This indicates that the mobile station has switched to a new cell. [0003] In the active mobile communication system of the mobile station, there is no beacon channel signal that is always transmitted. When the mobile station requests system servic...

AI Technical Summary

Problems solved by technology

A method that has been proposed so far is that the mobile station initiates an access process, that is, the mobile station broadcasts an inquiry message to the surrounding cells, and then selects the target cell according to the signal quality of the response message of the surrounding base stations, but in this method, the surrounding base stations return to the The response message of the mobile station needs to be monitored by the mobile station, and these messages do not arrive at the mobile station at the same time, which will cause a relatively long handover interruption time and affect the handover success rate

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