Rapid downlink switching method in linear overlay network, base station controller (BSC) and base station subsystem

Abstract

The invention relates to a rapid downlink switching method in a linear overlay network, a base station controller (BSC) and a base station subsystem. The method comprises the following steps that: the BSC carries out adjacent area configuration to each cell; lately continuous N measuring report information reported by a base transceiver station (BST) is received and stored; according to the measuring report information or the measuring report information combined with switching direction information of a mobile station (MS) stored by BSC, a cell switching service of the current MS is performed. During switching and deciding, a rapid downlink switching algorithm decision formula is used. Average processing is not needed to be performed to the measuring report data. Simultaneously, a wireless quality condition of the served cell is not needed to be considered and the wireless quality of the adjacent cell is only needed to be considered. Under the condition of not influencing a conversation, switching can be initiated as soon as possible. Time for the switching and the decision can be reduced so that a dropped call rate can be effectively reduced and a demand of rapid switching for a high-speed rail can be satisfied.

Description

Technical field [0001] The invention relates to the field of mobile communication, and in particular to a method for fast down-link switching in a linear overlay network applied to a high-speed railway private network, a BSC and a base station subsystem. Background technique [0002] In GSM (Global System for Mobile Communications, Global System for Mobile Communications) mobile communications, the mobile station (MS, Mobile Station) held by the user is not fixed, and the base station on the network side is fixed. At the same time, Due to the interference of the surrounding environment, as the user moves, the communication quality may tend to deteriorate, especially in fast-moving environments such as high-speed railways. The speed of the train is very fast, even exceeding 350 kilometers per hour, making the user terminal in the train When quickly traversing the serving cell and entering another cell, the call drop problem is very easy to occur. One of the effective measures to ...

AI Technical Summary

Problems solved by technology

However, the original switching algorithm applied to high-speed rail cannot meet the needs of fast switching of high-speed rail. Some handover algorithms, when the wireless quality of the serving cell is very poor, the handover will be initiated, and the MS will not be able to switch to the new cell in time, resulting in call drop and affecting the communication quality of the user

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