发明名称 |
CODE DESIGN AND IMPLEMENTATION IMPROVEMENTS FOR LOW DENSITY PARITY CHECK CODES FOR MULTIPLE-INPUT MULTIPLE-OUTPUT CHANNELS |
摘要 |
Methods and systems for designing LDPC codes (102) are disclosed. A method in accordance with the present invention comprises configuring a plurality of parallel accumulation engines (500), a number of the plurality of parallel accumulation engines (500) equal to M, accumulating a first information bit at a first set of specific parity bit addresses (502) using the plurality of parallel accumulation engines (500), increasing a parity bit address (504) for each member of the first set of specific parity bit addresses by a pre-determined offset for each new information bit, accumulating subsequent information bits at parity bit addresses that are offset from the specific parity bit addresses by a pre-determined offset until an M+1 information bit is reached (506), accumulating the next M information bits at a second set of specific parity bit addresses using the plurality of parallel accumulation engines (508), increasing a parity bit address for each member of the second set of specific parity bit addresses by the pre-determined offset for each new information bit (510); and repeating accumulating and increasing the addresses until the information bits are exhausted (512). |
申请公布号 |
WO2006020460(A3) |
申请公布日期 |
2006.05.18 |
申请号 |
WO2005US27447 |
申请日期 |
2005.08.03 |
申请人 |
THE DIRECTV GROUP, INC.;EROZ, MUSTAFA;LEE, LIN-NAN;SUN, FENG-WEN |
发明人 |
EROZ, MUSTAFA;LEE, LIN-NAN;SUN, FENG-WEN |
分类号 |
H03M13/00 |
主分类号 |
H03M13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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