发明申请
- 专利标题： NON-UNIFORM QUANTIZATION OF LOG LIKELIHOOD RATIOS
- 专利标题（中）： 日志比例的非统一量化
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申请号： US14983729申请日： 2015-12-30
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公开(公告)号： US20160226528A1公开(公告)日： 2016-08-04
- 发明人: Semih Serbetli , Marinus van Splunter
- 申请人： NXP B.V.
- 优先权： EP15153340.3 20150130
- 主分类号： H03M13/45
- IPC分类号： H03M13/45 ; G06F11/10
摘要：
A method of processing a signal by non-uniform quantization of log likelihood ratios is disclosed. In particular a disclosed method comprising the steps of: receiving (110) a plurality of bits (12); calculating (120) a log likelihood ratio (22), known as a LLR, for each bit; providing (130) a LLR value (22) for each bit based on the calculated LLR; quantizing (140) the LLR values into a plurality of quantization bins, each quantization bin having: a width representative of one or more LLR values; and an index value (32) having a bit length; and associating (150) each bit with the index value (32) that corresponds to its LLR value (22), wherein the width of each quantization bin is non-uniform. This compresses the LLR values (22) in a more efficient manner, requiring lower memory usage and/or lower bandwidth. A chip for a receiver and a communication system comprising one or more receivers are also disclosed.
公开/授权文献
- US10256846B2 Non-uniform quantization of log likelihood ratios 公开/授权日：2019-04-09
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