Apparatus and method for decoding LDPC codes in a communications system
First Claim
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1. An apparatus for decoding a low density parity check (LDPC) code, the apparatus comprising:
- a memory configured to receive a LDPC codeword having a length equal to a lifting factor times a base LDPC code length, wherein the lifting factor is greater than one; and
a number of LDPC processing elements configured to decode the LDPC codeword, wherein each of the number of LDPC processing elements decode separate portions of the LDPC codeword,wherein, when the LDPC processing elements decode in parallel, a first LDPC processing element in the LDPC processing elements is configured to receive the LDPC codeword and decode a fraction of a total number of rows in the LDPC code, the fraction equal to one over the number of the LDPC processing elements.
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Abstract
An apparatus and method decode LDPC code. The apparatus includes a memory and a number of LDPC processing elements. The memory is configured to receive a LDPC codeword having a length equal to a lifting factor times a base LDPC code length, wherein the lifting factor is greater than one. The number of LDPC processing elements configured to decode the LDPC codeword, wherein each of the number of LDPC processing elements decode separate portions of the LDPC codeword.
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9 Claims
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1. An apparatus for decoding a low density parity check (LDPC) code, the apparatus comprising:
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a memory configured to receive a LDPC codeword having a length equal to a lifting factor times a base LDPC code length, wherein the lifting factor is greater than one; and a number of LDPC processing elements configured to decode the LDPC codeword, wherein each of the number of LDPC processing elements decode separate portions of the LDPC codeword, wherein, when the LDPC processing elements decode in parallel, a first LDPC processing element in the LDPC processing elements is configured to receive the LDPC codeword and decode a fraction of a total number of rows in the LDPC code, the fraction equal to one over the number of the LDPC processing elements. - View Dependent Claims (2, 3, 4)
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5. A method for decoding a low density parity check (LDPC) code, the method comprising:
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receiving a LDPC codeword having a length equal to a lifting factor times a base LDPC code length, wherein the lifting factor is greater than one; and decoding, using the number of LDPC processing elements, the LDPC codeword, wherein each of the number of LDPC processing elements decode separate portions of the LDPC codeword, wherein, when the LDPC processing elements decode in parallel, decoding the LDPC codeword comprises; receiving, at a first LDPC processing element a first LDPC processing element in the number of LDPC processing elements, the LDPC codeword; and decoding a fraction of a total number of rows in the LDPC code, the fraction equal to one over the number of the LDPC processing elements. - View Dependent Claims (6, 7, 8, 9)
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Specification