公开(公告)号：US06470057B1

公开(公告)日：2002-10-22

申请号：US09169273

申请日：1998-10-09

申请人： Liu Hui ,  Guanghan Xu ,  Ping Liu

发明人： Liu Hui ,  Guanghan Xu ,  Ping Liu

IPC分类号： H01L514

CPC分类号： H04J3/0682 ,  H04B7/2668 ,  H04B7/2675

摘要： In a synchronous code division multiple access (SCDMA) time division duplex (TDD) communication system, a remote terminal uses both open loop and closed loop techniques for synchronization with a base station. The timing of reception of information by tile remote terminal is performed with an open loop technique, while the timing of transmissions from the terminal is performed with a closed loop technique. Furthermore, a clock locked loop in the terminal compensates for differences between clocks of the terminal and the base station. The clock locked loop responds to signals from both the aforesaid open loop and closed loop techniques.

摘要翻译： 在同步码分多址（SCDMA）时分双工（TDD）通信系统中，远程终端同时使用开环和闭环技术与基站同步。 利用开环技术来执行由瓦片远程终端接收信息的定时，而以闭环技术执行来自终端的传输定时。 此外，终端中的时钟锁定环补偿终端和基站的时钟之间的差异。 时钟锁定环路响应来自上述开环和闭环技术的信号。