Method and apparatus for determining a transmit PSD at a remote location

    公开(公告)号:US20060133534A1

    公开(公告)日:2006-06-22

    申请号:US11305270

    申请日:2005-12-19

    IPC分类号: H04B15/00

    CPC分类号: H04B3/487

    摘要: The present invention relates to a method for determining a transmit PSD over a remotely-deployed line, which method comprising the steps of: modeling a first far-end crosstalk originating from the line and coupling into a centrally-deployed victim neighboring line, modeling a second far-end crosstalk originating from a further centrally-deployed neighboring line and coupling into the victim neighboring line, determining the transmit PSD from the first modeled far-end crosstalk and the second modeled far-end crosstalk. A method according to the invention further comprises the steps of: expressing the transmit PSD as a function of a line parameter characterizing a line segment of the further neighboring line, carrying out channel measurements of a spare line that connects the central location to the remote location, and that shares common transmission characteristics with the line segment, estimating from said channel measurements a value of the line parameter, determining therefrom the transmit PSD. The present invention also relates to a power control unit.