发明授权
US07359311B1 Decoding method and apparatus using channel state information for use in a wireless network receiver
有权
使用无线网络接收机中使用的信道状态信息的解码方法和装置
- 专利标题： Decoding method and apparatus using channel state information for use in a wireless network receiver
- 专利标题（中）： 使用无线网络接收机中使用的信道状态信息的解码方法和装置
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申请号： US10418694申请日： 2003-04-18
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公开(公告)号： US07359311B1公开(公告)日： 2008-04-15
- 发明人: Milind D. Paranjpe , Brian Hart , David J. Pignatelli , Ender Ayanoglu , Eldad Perahia , Philip J. Ryan , Bretton Lee Douglas , Uri Parker
- 申请人： Milind D. Paranjpe , Brian Hart , David J. Pignatelli , Ender Ayanoglu , Eldad Perahia , Philip J. Ryan , Bretton Lee Douglas , Uri Parker
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： Inventek
- 代理商 Dov Rosenfeld
- 主分类号： H04J11/00
- IPC分类号： H04J11/00
摘要：
A method, apparatus, and carrier medium for determining channel state information (CSI) in an OFDM radio receiver. The receiver is for receiving packets of OFDM data as a result of OFDM data being transmitted. The method includes forming an estimate of the channels of the subcarriers for received OFDM data to provide frequency responses of the channels of the subcarriers, and forming a measure of quality (“channel state information,” “CSI”) for the channels of the subcarriers based on the relative strength of the frequency responses. The forming of the CSI does not require estimating the relative amount of noise or interference in each channel. The formed CSI is used in demodulating and decoding received OFDM data.