发明名称 |
Communication signal equalization systems and methods |
摘要 |
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.
|
申请公布号 |
US7319690(B2) |
申请公布日期 |
2008.01.15 |
申请号 |
US20040912241 |
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 |
H04B7/216;H04B1/707;H04L25/03 |
主分类号 |
H04B7/216 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|