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    • 2. 发明授权
    • Idle handoff controlling method in cellular communication system
    • 蜂窝通信系统中的空闲切换控制方法
    • US06195551B1
    • 2001-02-27
    • US09119632
    • 1998-07-21
    • Kyu-Nam KimDong-Woo Kim
    • Kyu-Nam KimDong-Woo Kim
    • H04Q720
    • H04W48/20H04W24/00H04W24/10H04W36/0061H04W36/08H04W48/16H04W68/00Y02D70/00
    • An idle handoff controlling method effectively reduces the number of idle handoff processes in a cellular communication system. In the method, a first pilot channel having the strongest strength transmitted from one of a plurality of base stations as an active base station is searched and a strength of the first pilot channel is measured. A variable threshold value based on the first pilot channel strength is calculated. A paging channel having a neighbor list having a plurality of neighbor base stations is monitored in synchronization with the first pilot channel. A strength of a second pilot signal transmitted from one of the plurality of neighbor base stations is measured. The first pilot channel strength from the second pilot channel strength is subtracted to obtain a strength difference. It is judged whether the strength difference is greater than the variable threshold value. Performance of an idle handoff according to the judgement result is controlled. In the method, by reducing the number of the idle handoff in a cellular communication system, waste of a battery of the mobile station is reduced, arrival rate of the mobile station is increased, and communication efficiency of a reverse control channel becomes higher.
    • 空闲切换控制方法有效地减少了蜂窝通信系统中的空闲切换过程的数量。 在该方法中,搜索从作为活动基站的多个基站中的一个发送的具有最强的强度的第一导频信道,并且测量第一导频信道的强度。 计算出基于第一导频信道强度的可变阈值。 具有与多个相邻基站相邻列表的寻呼信道与第一导频信道同步地被监视。 测量从多个相邻基站之一发射的第二导频信号的强度。 从第二导频信道强度的第一导频信道强度被减去以获得强度差。 判断强度差是否大于可变阈值。 根据判断结果进行空闲切换的性能受到控制。 在该方法中,通过减少蜂窝通信系统中的空闲切换次数,能够减少移动台的电池的浪费,移动台的到达速度增加,反向控制信道的通信效率变高。