公开(公告)号：US06571099B1

公开(公告)日：2003-05-27

申请号：US09426852

申请日：1999-10-26

申请人： Il Kyu Kim ,  Sang Wook Ha ,  Byoung Woo Lim ,  Sang Gil Lee

发明人： Il Kyu Kim ,  Sang Wook Ha ,  Byoung Woo Lim ,  Sang Gil Lee

IPC分类号： H04L900

CPC分类号： H04B1/7083

摘要： A method for quickly searching a cell at a mobile station by using a synchronization channel structure of a forward link in a code division multiple access system which operates by an asynchronous mode between base stations is provided. In the method, a predetermined starting point among a plurality of locations of sync channel codes in a frame with respect to a base station having a minimal channel loss is obtained. Long code group and frame sync information at the mobile station are obtained based on outputs of a matched filter every mini slot clock location for one frame time after a starting point of a current mini slot. A long code based on the obtained long code group and frame sync information obtained is detected wherein the long code is used for band-spreading of a forward link by a current base station.

摘要翻译： 提供了一种通过在基站之间通过异步模式操作的码分多址系统中的前向链路的同步信道结构来快速搜索移动台的小区的方法。 在该方法中，获得相对于具有最小信道损失的基站的帧中的同步信道码的多个位置中的预定起始点。 基于当前迷你时隙起始点之后一帧时间的每个迷你时隙时钟位置的匹配滤波器的输出，获得移动台上的长码组和帧同步信息。 检测基于获得的长码组和获得的帧同步信息的长码，其中长码用于当前基站的前向链路的频带扩展。