发明名称 |
COMMUNICATION SIGNAL EQUALIZATION SYSTEMS AND METHODS |
摘要 |
<p>Communication signal equalization methods and systems are disclosed. A CDMA signal having a data portion and a known portion including a known or repeated data sequence and received over a multipath communication channel represents a linear convolution between the multipath channel and a transmitted CDMA signal. A channel estimate of the communication channel is determined from the known portion, and the CDMA signal is translated into a new CDMA signal which is a cyclic convolution with the channel estimate. A frequency domain representation of the new CDMA signal is adjusted using the channel estimate to produce a frequency domain representation of an equalized signal.</p> |
申请公布号 |
WO2005015791(A1) |
申请公布日期 |
2005.02.17 |
申请号 |
WO2004CA01472 |
申请日期 |
2004.08.06 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
WU, SHIQUAN;TONG, WEN;ROYER, CLAUDE |
分类号 |
H04B1/707;H04L25/03;(IPC1-7):H04B7/005;H04B7/216;H04B1/69 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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