发明名称 |
CDMA receiver with weighted interference cancellation |
摘要 |
A code division multiple access receiver estimates symbol values transmitted by different stations by despreading a combined received signal, weights the estimated symbol values by use of weighting factors calculated for the different stations, respreads the weighted symbol values to estimate the interference due to each station, and subtracts the estimated interference from the received signal to produce a residual signal. The weighting factors can be calculated from the residual signal; the weighting factors are calculated so as to minimize the power of the residual signal. The weighting factors are adjusted at certain intervals, preferably at intervals determined from the rate of fading of the received signal.
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申请公布号 |
US6496534(B1) |
申请公布日期 |
2002.12.17 |
申请号 |
US19970883959 |
申请日期 |
1997.06.27 |
申请人 |
OKI ELECTRONIC INDUSTRY CO., LTD. |
发明人 |
SHIMIZU SATORU;KAWAKAMI EIICHIRO;TOKUDA KIYOHITO |
分类号 |
H04J13/04;H04B1/12;H04B1/69;H04B7/005;H04B7/216;H04B15/00;H04Q7/22;(IPC1-7):H04B15/00 |
主分类号 |
H04J13/04 |
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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