Invention Grant
US08689075B2 Apparatus and method for mapping and demapping signals in a communication system using a low density parity check code
有权
在使用低密度奇偶校验码的通信系统中映射和解映射信号的装置和方法
- Patent Title: Apparatus and method for mapping and demapping signals in a communication system using a low density parity check code
- Patent Title (中): 在使用低密度奇偶校验码的通信系统中映射和解映射信号的装置和方法
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Application No.: US13435723Application Date: 2012-03-30
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Publication No.: US08689075B2Publication Date: 2014-04-01
- Inventor: Hyun-Koo Yang , Hong-Sil Jeong , Sung-Ryul Yun
- Applicant: Hyun-Koo Yang , Hong-Sil Jeong , Sung-Ryul Yun
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, P.C.
- Priority: KR10-2011-0029128 20110330; KR10-2011-0034481 20110413; KR10-2011-0037531 20110421; KR10-2011-0141033 20111223
- Main IPC: H03M13/00
- IPC: H03M13/00
Abstract:
An apparatus and method for mapping and demapping signals in a system using a Low Density Parity Check (LDPC) code are provided. In the method, LDPC codeword bits are written column-wise and read row-wise, substreams are generated by demultiplexing the read bits using a demultiplexing scheme, and bits included in each of the substreams are mapped to symbols on a signal constellation. The demultiplexing scheme is determined corresponding to a modulation scheme used in the signal transmitter, a length of the LDPC codeword, and a number of the substreams.
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