发明申请
US20050018794A1 High speed, low-cost process for the demodulation and detection in EDGE wireless cellular systems
审中-公开
EDGE无线蜂窝系统解调和检测的高速，低成本过程
- 专利标题： High speed, low-cost process for the demodulation and detection in EDGE wireless cellular systems
- 专利标题（中）： EDGE无线蜂窝系统解调和检测的高速，低成本过程
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申请号： US10624024申请日： 2003-07-22
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公开(公告)号： US20050018794A1公开(公告)日： 2005-01-27
- 发明人: Xiangguo Tang , Zhi Ding , Ge Li
- 申请人： Xiangguo Tang , Zhi Ding , Ge Li
- 主分类号： H04L25/03
- IPC分类号： H04L25/03 ; H04L27/20 ; H04L27/06
摘要：
A process for signal detection in EDGE cellular systems is presented with the step of wireless channel estimation, a time-reversed signal processor, a soft-output Viterbi signal detector consisting of forward and reverse block processing, a MAP decoder that exchange soft information with the equalizer. Claim 1. A signal detection mechanism to demodulate received data frame that includes an accurate estimator to obtain channel responses, a forward filter and a FIR decision feedback filter to be used in soft-output equalizer, a time-reversal device storing received data in a time-reversed order for reverse block processing, an interference removal apparatus in both forward and reverse processing blocks, and a soft-input soft-output reduced state equalizer that utilizes the forward processing and reversed time processing blocks to generate iterative soft-output signals to the forward error correction decoder within the receiver system.
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