发明名称 |
Channel code decoding for the CDMA forward link |
摘要 |
Channel coding is used on the forward link of a CDMA cellular telephone network to allow the CDMA mobile channel decoder to perform error correction. On a wireless link, channel code performance is improved by providing the channel decoder with an estimate of the reliability of each received symbol. This reliability information is typically the ratio of desired signal energy to interference plus noise variance at the channel decoder input. This invention improves CDMA mobile channel decoder performance using a new technique for calculating more accurate estimates of the signal to interference plus noise ratio at the input of the mobile channel decoder.
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申请公布号 |
US2003081658(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
US20020260226 |
申请日期 |
2002.09.27 |
申请人 |
TELECOMMUNICATIONS RESEARCH LABORATORIES. |
发明人 |
MESSIER GEOFFREY G.;KRZYMIEN WITOLD A. |
分类号 |
H04B1/707;H04B7/216;H04B15/00;H04L1/00;H04L1/06;H04L1/20;H04L25/02;H04Q7/36;(IPC1-7):H04K1/00 |
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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