发明授权
- 专利标题： Time filtering for excess delay mitigation in OFDM systems
- 专利标题（中）： OFDM系统中多余延迟缓解的时间滤波
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申请号： US11022513申请日： 2004-12-22
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公开(公告)号： US08553822B2公开(公告)日： 2013-10-08
- 发明人: Dhananjay Ashok Gore , Ashok Mantravadi , Fuyun Ling , Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi
- 申请人： Dhananjay Ashok Gore , Ashok Mantravadi , Fuyun Ling , Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理机构： Fulbright & Jaworski LLP
- 主分类号： H04B1/10
- IPC分类号： H04B1/10
摘要：
Pilot transmission and channel estimation techniques for an OFDM system with excess delay spread are described. To mitigate the deleterious effects of excess delay spread, time filtering is utilized. Time filtering is utilized to combat excess delay spread effects in channel estimation. The time filtering is performed in the presence of staggered pilots and helps in improving the channel estimate in the presence of excess delay spread.
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