发明名称 |
Method and apparatus for channel quality measurements |
摘要 |
A method and apparatus are provided for measuring channel quality over which has been transmitted a sequence of symbols produced by encoding and constellation mapping a source data element sequence. The method includes receiving a sequence of received symbols over the channel whose quality is to be measured. The sequence of received symbols is de-mapped based on a first channel quality indicator previously transmitted to a transmitter of the sequence of symbols. The method also includes decoding the de-mapped symbols to produce a decoded output sequence. In some embodiments, the decoding may be based on the first channel quality indicator. The method also includes re-encoding the decoded output sequence to produce a re-encoded output sequence. The method also includes correlating the de-mapped symbols with the re-encoded output sequence to produce a second channel quality indicator. The second channel quality indicator is transmitted to the transmitter to adaptively select a type of mapping based on the second channel quality indicator. In some embodiments, the transmitter may adaptively select a type of encoding based on the second channel quality indicator. |
申请公布号 |
US8170155(B2) |
申请公布日期 |
2012.05.01 |
申请号 |
US20100839836 |
申请日期 |
2010.07.20 |
申请人 |
JIA MING;MA JIANGLEI;ZHU PEIYING;YU DONG-SHENG;TONG WEN;ROCKSTAR BIDCO, LP |
发明人 |
JIA MING;MA JIANGLEI;ZHU PEIYING;YU DONG-SHENG;TONG WEN |
分类号 |
H03D1/00;H04L1/00;H04L1/06;H04L1/20;H04L25/02;H04L25/06;H04L27/06;H04L27/26 |
主分类号 |
H03D1/00 |
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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