发明名称 |
METHOD FOR LOW COMPLEXITY DECISION METRIC COMPRESSION OF HIGHER-ORDER SQUARE-QAM CONSTELLATION |
摘要 |
It is possible to compress log likelihood ratios (LLRs) by exploiting the mapping symmetry between bits in the same symbol. For example, two LLRs corresponding to the same dimension of a square Quadrature Amplitude Modulation (QAM) symbol can be compressed into a single compressed LLR that excludes the magnitude bits of one of the LLRs because the magnitude component of LLRs for bits corresponding to the same dimension of a square QAM symbol exhibit a piecewise linear relationship with one another. Similar techniques can be used to exploit piecewise linear relationships between a subset of constellation points in a non-square QAM constellation. |
申请公布号 |
WO2017041626(A1) |
申请公布日期 |
2017.03.16 |
申请号 |
WO2016CN96565 |
申请日期 |
2016.08.24 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
MITRA, Jeebak;ZHANG, Zhuhong |
分类号 |
G06F11/10 |
主分类号 |
G06F11/10 |
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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