发明授权
- 专利标题： Dynamically controlling the number of local iterations in an iterative decoder
- 专利标题（中）： 动态地控制迭代解码器中的局部迭代次数
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申请号： US13528237申请日： 2012-06-20
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公开(公告)号： US08832532B2公开(公告)日： 2014-09-09
- 发明人: Anatoli A. Bolotov , Aleksey Alexandrovich Letunovskiy , Ivan Leonidovich Mazurenko , Lav D. Ivanovic , Fan Zhang
- 申请人： Anatoli A. Bolotov , Aleksey Alexandrovich Letunovskiy , Ivan Leonidovich Mazurenko , Lav D. Ivanovic , Fan Zhang
- 申请人地址： US CA San Jose
- 专利权人： LSI Corporation
- 当前专利权人： LSI Corporation
- 当前专利权人地址： US CA San Jose
- 代理机构： Mendelsohn, Drucker & Dunleavy, P.C.
- 代理商 Craig M. Brown; Steve Mendelsohn
- 主分类号： H03M13/00
- IPC分类号： H03M13/00
摘要：
An iterative decoder dynamically controls the number of local iterations of error-correction decoding performed for each global iteration of channel detection. In so doing, the iterative decoder (i) limits the number of local iterations that are performed after error-correction decoding has likely encountered a trapping set and (ii) permits decoding to continue when error-correction decoding is on the path to converging on a valid codeword. To predict whether error-correction decoding is on the path to encountering a trapping set or converging on a valid codeword, a model is generated based on observed numbers of unsatisfied check nodes for a specified number of local iterations. For local iterations following the specified number of local iterations, the observed numbers of unsatisfied check nodes are then compared to the model to determine whether to continue or terminate local iterations of error-correction decoding.