会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Digital mobile communication system capable of establishing mutual
synchronization among a plurality of radio base stations
    • 能够在多个无线基站之间建立相互同步的数字移动通信系统
    • US5912886A
    • 1999-06-15
    • US796951
    • 1997-02-07
    • Hideaki TakahashiKoji Sugawara
    • Hideaki TakahashiKoji Sugawara
    • H04Q7/36H04B7/26H04J3/06H04L7/00
    • H04B7/2693H04J3/0602H04J3/0682
    • A mobile communication system is capable of establishing mutual synchronization of radio communication channels among a plurality of radio base stations. A synchronization timing control center is included in a wired telephone network as a terminal equipment of the wired telephone network. Each radio base station in the mobile communication network makes a connection to the synchronization timing control center by way of a mobile switching center, for establishing frame synchronization. Each radio base station measures a value of transmission delay between the radio base station and the synchronization timing control center, and then receives a frame signal as a reference signal from the synchronization timing control center. The formal frame signal to be used by each radio base station is reproduced by compensating the received frame signal by the transmission delay value which varies for each radio base station. Once the frame signal has been established, the signal is held by the clock timing of the network synchronization circuit in each radio base station.
    • 移动通信系统能够建立多个无线基站中的无线通信信道的相互同步。 同步定时控制中心作为有线电话网络的终端设备被包括在有线电话网络中。 移动通信网络中的每个无线电基站通过移动交换中心与同步定时控制中心建立连接,以建立帧同步。 每个无线电基站测量无线电基站和同步定时控制中心之间的传输延迟的值,然后从同步定时控制中心接收作为参考信号的帧信号。 通过对每个无线电基站变化的传输延迟值补偿接收的帧信号来再现每个无线电基站要使用的形式帧信号。 一旦已经建立了帧信号,则信号由每个无线电基站中的网络同步电路的时钟定时保持。