发明授权
US07418064B2 Systems and methods for hierarchically demodulating and decoding a data signal using a pilot signal and an additional signal
失效
使用导频信号和附加信号对数据信号进行分层解调和解码的系统和方法
- 专利标题： Systems and methods for hierarchically demodulating and decoding a data signal using a pilot signal and an additional signal
- 专利标题（中）： 使用导频信号和附加信号对数据信号进行分层解调和解码的系统和方法
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申请号： US10781461申请日： 2004-02-17
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公开(公告)号： US07418064B2公开(公告)日： 2008-08-26
- 发明人: Yongbin Wei , Durga P. Malladi , Stein Lundby , Tao Chen , Serge Willenegger
- 申请人： Yongbin Wei , Durga P. Malladi , Stein Lundby , Tao Chen , Serge Willenegger
- 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
- 代理商 Hossaine Beladi; Larry J. Moskowitz; Thomas Rouse
- 主分类号： H04L27/06
- IPC分类号： H04L27/06 ; H04B1/707
摘要：
Systems and methods for demodulating and decoding signals on a multi-path data channel using a pilot signal and at least one additional signal as a demodulation reference. One embodiment includes a method in which a pilot signal is used to demodulate and decode an additional signal, and then both the pilot signal and the additional signal are used to demodulate and decode a data traffic signal. A receiver receives a data traffic signal, a rate indicator signal and a pilot signal. The pilot signal is used as a demodulation reference for the rate indicator signal. After the rate indicator signal is demodulated and decoded, this signal is re-encoded and compared to the received rate indicator signal and used in combination with the pilot signal as a demodulation reference for the demodulation and decoding of the data traffic signal and to estimate SNR for power control purposes.