发明名称 |
METHOD AND APPARATUS FOR DELINEATING DATA IN AN FEC-CODED ETHERNET FRAME |
摘要 |
One embodiment of the present invention provides a system that facilitates construction of a forward error correction (FEC) coded Ethernet frame. During operation, the system receives a conventional Ethernet frame. The system then generates a number of FEC parity bits for the conventional Ethernet frame and inserts a start sequence before the conventional Ethernet frame. Next, the system appends an even- or odd-delimiter to the conventional Ethernet frame. The even-delimiter is used to separate the conventional Ethernet frame from the FEC parity bits if the last symbol of the conventional Ethernet frame is in an odd-numbered position. The odd-delimiter is used to separate the conventional Ethernet frame from the FEC parity bits if the last symbol of the conventional Ethernet frame is in an even-numbered position. The even-delimiter and the odd-delimiter are selected such that there is a sufficiently large Hamming distance between them, thereby reducing the probability of mistaking the even-delimeter for the odd-delimeter, or mistaking the odd-delimeter for the even-delimeter, if bit errors occurs within the even- or odd-delimeter. The system also appends the number of FEC parity bits to the even- or odd-delimeter and appends a second delimeter to the FEC parity bits. |
申请公布号 |
WO2005122505(A2) |
申请公布日期 |
2005.12.22 |
申请号 |
WO2005US17476 |
申请日期 |
2005.05.18 |
申请人 |
TEKNOVUS, INC.;NGUYEN, HUNG C.;KRAMER, GLEN;HIRTH, RYAN E. |
发明人 |
NGUYEN, HUNG C.;KRAMER, GLEN;HIRTH, RYAN E. |
分类号 |
H04L1/00;H04L12/56 |
主分类号 |
H04L1/00 |
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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