发明名称 |
Method and apparatus for DMT crosstalk cancellation |
摘要 |
An apparatus for precoding multi-tone modulated transmissions of a plurality of communication channels over bundled subscriber lines. The apparatus includes a pseudo symbol controller and a precoder. The pseudo symbol controller detects a victim communication channel and an interferor communication channel having non-matching symbol rates, and transforms the interferor channel into a pseudo-symbol having both a substantially similar length as a corresponding symbol of the victim channel together with defined tonal characteristics expressed in terms of the interferor channel. The precoder assigns crosstalk coefficients to selected sub-channels or tones of the pseudo symbol and precodes the victim channel with the pseudo symbol using the crosstalk coefficients; thereby generating a precoded victim symbol which exhibits reduced crosstalk between the selected victim and interferor. |
申请公布号 |
US2010046738(A1) |
申请公布日期 |
2010.02.25 |
申请号 |
US20090583694 |
申请日期 |
2009.08.24 |
申请人 |
IKANOS COMMUNICATION, INC. |
发明人 |
SCHELSTRAETE SIGURD;HEIDARI SAM |
分类号 |
H04M9/08 |
主分类号 |
H04M9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|