发明名称 |
Digital subscriber line transmission method, apparatus and system |
摘要 |
A digital subscriber line transmission (xDSL)-, system includes a transmitting side which transmits training symbols by adding some data that is contained in a training symbol sequence onto at least one of the beginning and the end of this symbol sequence and then transmits the training symbol sequence. A receiving side removes the data that has been added onto the training symbol sequence and executes training processing. The length of the training symbol sequence and of a transmit symbol sequence at time of normal communication is set in such a manner that the symbol sequence will not fall within an interval in which effects of near-end crosstalk from a neighboring line are received. The data added to the training symbol sequence specifies an interval in which effects of the crosstalk are received.
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申请公布号 |
US7286495(B2) |
申请公布日期 |
2007.10.23 |
申请号 |
US20050159806 |
申请日期 |
2005.06.23 |
申请人 |
FUJITSU LIMITED |
发明人 |
HASEGAWA KAZUTOMO;ASAHINA HIDETAKE;MIYOSHI SEIJI;KOIZUMI NOBUKAZU;AWATA YUTAKA |
分类号 |
H04B1/44;H04L5/16;H04B1/38;H04B1/56;H04B3/02;H04B3/10;H04B3/20;H04B3/32;H04J1/12;H04J1/16;H04J3/06;H04J4/00;H04J11/00;H04L5/02;H04L5/14;H04L25/03;H04L27/26;H04L29/06;H04M11/06;H04Q11/04 |
主分类号 |
H04B1/44 |
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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