公开(公告)号：US20140325321A1

公开(公告)日：2014-10-30

申请号：US13975051

申请日：2013-08-23

Applicant: QUALCOMM Incorporated

Inventor： Hassan RAFIQUE ,  Divaydeep Sikri ,  Nico De Laurentis ,  Nita E. Joseph

IPC: H04L1/00 ,  H04W88/02

CPC classification number: H04L1/0068 ,  H03M13/23 ,  H03M13/41 ,  H03M13/6362 ,  H04L1/0046 ,  H04L1/0053 ,  H04L1/0059 ,  H04L1/0069 ,  H04W88/02

Abstract: Systems and methods for decoding bitstreams are described. The bitstreams may be encoded using a punctured convolution code and received from a wireless network. A puncture pattern associated with a modulation and coding scheme used to encode the bitstream is determined, and punctured log-likelihood ratios (LLRs) generated from the bitstream are ignored while decoding the bitstream. The puncture pattern may be characterized by one or more algorithms that identify punctured LLRs in a repetitive sequence of LLRs. A decoder may exclude punctured LLRs from calculations related to bitstream decoding. The decoder may comprise a Viterbi decoder or an algebraic decoder. Other aspects, embodiments, and features are also claimed and described.

Abstract translation: 描述用于解码比特流的系统和方法。 可以使用从无线网络接收的打孔卷积码对比特流进行编码。 确定与用于编码比特流的调制和编码方案相关联的穿孔模式，并且在对比特流进行解码的同时忽略从比特流产生的穿孔对数似然比（LLR）。 穿刺模式的特征在于一种或多种在LLR的重复序列中识别穿孔的LLR的算法。 解码器可以从与比特流解码相关的计算中排除穿孔的LLR。 解码器可以包括维特比解码器或代数解码器。 还要求和描述其它方面，实施例和特征。