公开(公告)号：US20060188005A1

公开(公告)日：2006-08-24

申请号：US10548448

申请日：2004-03-08

申请人： Francesc Espax

发明人： Francesc Espax

IPC分类号： H04B1/707

CPC分类号： H04B1/70775 ,  H04B1/709 ,  H04B1/7113

摘要： A multi-path searcher comprises multiple correlators (Co, C1, C2, C3 . . . CN) which each process a predetermined scrambling sequence and channelisation code to carry out a correlation measurement on a received pilot signal after it has been delayed by a different time delay (D) at the input of each correlator. Multiple correlation measurements (MO, M1, M2 . . . MN) are generated and analysed (A) in relation to the time delays to identify the multi-path positions. First candidate multi-path positions are identified over a first predetermined integration period (TP1) and are stored and compared with second candidate multi-path positions derived from multiple correlation measurements made subsequently by the multi-path searcher over a second predetermined integration period (TP2) in relation to a first pilot signal. Said first and second candidate multi-path positions are confirmed or rejected to define modified multi-path positions. Said successive predetermined integration periods (TP1, TP2) are spaced apart to accommodate one or more similar sets of successive integration periods in an interleaved manner, and the same multi-path searcher is used to determine multi-path positions in relation to the pilot signal received in connection with each of different cells (CELL 1, CELL 2, . . . CELL S). Thus, the multi-path searcher carries out a first correlation cycle (T1) in relation to the pilot signal of each of different cells in succession to determine first candidate multi-paths for each, and then carries out a second correlation cycle (T2) in relation to each of the pilot signals again to determine second candidate multi-paths for each to modify the respective first candidate multi-paths.

公开(公告)号：US20070177657A1

公开(公告)日：2007-08-02

申请号：US11596430

申请日：2005-05-11

申请人： Francesc Espax

发明人： Francesc Espax

IPC分类号： H04B1/00

CPC分类号： H04B1/7113 ,  H04B1/70754 ,  H04B1/70775 ,  H04B1/7117

摘要： A method of updating a multipath search that has located one or more multipath component peaks in a received signal, the method comprising repeating the search using a delay spread window extending either back from the latest peak or forward from the earliest peak.

摘要翻译： 一种更新已经在接收信号中定位了一个或多个多路径分量峰值的多路径搜索的方法，所述方法包括使用从最早的峰值向前延伸的延迟扩展窗口或从最早的峰值向前延伸来重复搜索。