发明名称 UP-LINK SDMA RECEIVER FOR WiMAX
摘要 A method, a system and a receiver device provide timing and frequency correction in a spatial division multiple access (SDMA) system. A timing and frequency correction (TFC) logic/utility obtains a timing error estimate by using pilot symbols on a slot of six tiles. The TFC logic estimates the timing error based on pilot phase differences between unique pairs of tiles when the frequency separation of the tiles is less than a threshold value. When none of the unique pairs of tiles satisfies the threshold value, the TFC logic estimates timing error based on an exhaustive search for each candidate phase error value. The TFC logic performs timing error correction via a timing error estimate based on pilots from the symbols received on each antenna. The TFC logic performs inexplicit frequency error correction according to phase differences based on relative symbol indices.
申请公布号 US2010296438(A1) 申请公布日期 2010.11.25
申请号 US20090469306 申请日期 2009.05.20
申请人 MOTOROLA, INC. 发明人 YU XIAOYONG;ROTTINGHAUS ALAN P.;WILSON TIMOTHY J.
分类号 H04W72/00 主分类号 H04W72/00
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