Invention Grant
US07684505B2 Method and apparatus for encoding interleaving and mapping data to facilitate GBPS data rates in wireless systems
有权
用于编码交织和映射数据以便于无线系统中的GBPS数据速率的方法和装置
- Patent Title: Method and apparatus for encoding interleaving and mapping data to facilitate GBPS data rates in wireless systems
- Patent Title (中): 用于编码交织和映射数据以便于无线系统中的GBPS数据速率的方法和装置
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Application No.: US11114752Application Date: 2005-04-25
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Publication No.: US07684505B2Publication Date: 2010-03-23
- Inventor: Sridhar Rajagopal , Matthew B. Shoemake , John Terry
- Applicant: Sridhar Rajagopal , Matthew B. Shoemake , John Terry
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Dang M. Vo
- Main IPC: H04L5/12
- IPC: H04L5/12
Abstract:
A method and apparatus for encoding data for wireless transmission. The invention includes multi-level coding in which data is partitioned between two encoders, one for encoding Most Significant Bits (MSBs) and the other for encoding Least Significant Bits (LSBs). By partition bits separately for the MSBs and LSBs, the complexity of the decoder may be reduced. The MSBs and LSBs are interleaved such that each MSB is a function of just one LSB, simplifying branch metric selection during Viterbi decoding. This also allows parallel de-interleaving by the receiver, which reduces the interleaving latency of the receiver. A block interleaver jointly optimizes the symbol hamming distance of the symbols and the bit hamming distance of each constituent encoder for the MSBs and LSBs.
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