发明授权
US07453793B1 Channel estimation for OFDM communication systems including IEEE 802.11A and extended rate systems
有权
包括IEEE 802.11A和扩展速率系统在内的OFDM通信系统的信道估计
- 专利标题： Channel estimation for OFDM communication systems including IEEE 802.11A and extended rate systems
- 专利标题（中）： 包括IEEE 802.11A和扩展速率系统在内的OFDM通信系统的信道估计
-
申请号： US10823087申请日： 2004-04-12
-
公开(公告)号： US07453793B1公开(公告)日： 2008-11-18
- 发明人: Vincent K. Jones, IV , James Gardner , D. J. Richard van Nee
- 申请人： Vincent K. Jones, IV , James Gardner , D. J. Richard van Nee
- 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： Amin, Turocy & Calvin, LLP
- 主分类号： H04J11/00
- IPC分类号： H04J11/00
摘要：
Channel estimation techniques are provided for a receiver of a wireless communication system using orthogonal frequency division multiplexing (OFDM), including legacy 802.11a and various extended rate systems. Training signals are received from one or more receive antennas. An estimated channel impulse response is computed from the received training signals by reference to a training sequence. The estimated channel impulse response is truncated in the time domain based on channel power and noise data. Channel response tracking techniques may also be implemented to correct for variations in channel response over the transmission time of a packet.
信息查询
