发明名称 |
Method and apparatus for preventing a false pass of a cyclic redundancy check at a receiver during weak receiving conditions in a wireless communications system |
摘要 |
At the receiver in a wireless communications system, the likelihood of a false CRC pass that can occur when a weak received signal produces an all ZERO output from a convolutional or a turbo decoder is minimized. To prevent an all ZERO output, a convolutional decoder selects from among those determined equally most likely transmitted sequences of bits in a data block one that has a weight greater than the one having the minimum weight. A turbo decoder selects a ONE rather than a ZERO as the value of a transmitted bit in a data block when for that bit a bit value of a ZERO and a ONE are determined to be equally likely.
|
申请公布号 |
US2005235192(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
US20040823948 |
申请日期 |
2004.04.14 |
申请人 |
BERNADAC PIERRE;GUNREBEN PETER C;KONG HONGWEI;MOREAU JEAN P |
发明人 |
BERNADAC PIERRE;GUNREBEN PETER C.;KONG HONGWEI;MOREAU JEAN P. |
分类号 |
H03M13/03;H04L1/00;(IPC1-7):H03M13/03 |
主分类号 |
H03M13/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|