发明名称 |
Decoding with partial state information on a convolutionally encoded channel |
摘要 |
The certainties of transmitted bits at predetermined locations in time are determined a priori. This information is then used to set the states of a Viterbi decoder to different state metrics in accordance with the certainties of the transmitted bits. High certainty of a transmitted bit results in resetting the states corresponding to that bit to a high state metric. In contrast, low certainty of a transmitted bit results in resetting the states corresponding to that bit to a low state metric. Resetting the states to different state metrics improves the decoding performance and shortens the time required to converge the decoding trellis by eliminating improbable paths.
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申请公布号 |
US6519297(B2) |
申请公布日期 |
2003.02.11 |
申请号 |
US20000741969 |
申请日期 |
2000.12.20 |
申请人 |
QUALCOMM, INCORPORATED |
发明人 |
BUTLER BRIAN K.;BAYLEY GWAIN;HANSQUINE DAVID;TIEDEMANN, JR. EDWARD G. |
分类号 |
H03M13/41;H04L1/00;(IPC1-7):H04L27/06;H03M13/03 |
主分类号 |
H03M13/41 |
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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