公开(公告)号：US20040196912A1

公开(公告)日：2004-10-07

申请号：US10813991

申请日：2004-03-31

Applicant: STMicroelectronics S.A.

Inventor： Christophe Del Toso ,  Chan-Virak Trang

IPC: H04M011/00 ,  H04M001/00

CPC classification number: H04L5/143 ,  H04B3/23 ,  H04L5/023 ,  H04L5/1438 ,  H04L25/03343 ,  H04L27/2602 ,  H04L27/2607 ,  H04L2025/03414 ,  H04L2025/03445 ,  H04L2025/03522

Abstract: Process for configuring an xDSL-type symmetric modem, comprising the following: detecting a predetermined criterion corresponding to an asymmetric operating mode, in particular an ADSL-type; and in response to said detection, disabling a number of carriers in order to establish an asymmetric operating mode. More specifically, the modem is VDSL-type, operating with up to 4096 carriers and being reconfigurable in ADSL mode with a number of carriers reduced to 256. In one case, said criterion is the detection of signals as defined in recommendation G.994.1 of the International Telecommunications Union of (ITU). Alternatively, mode switching could be controlled based on measurement of the size of the line.

Abstract translation: 用于配置xDSL型对称调制解调器的过程包括以下步骤：检测对应于非对称操作模式的预定标准，特别是ADSL型; 并且响应于所述检测，禁用多个载波以建立非对称操作模式。 更具体地说，调制解调器是VDSL型，最多可运行4096个载波，并且在ADSL模式下可重新配置，多个载波减少到256个。在一种情况下，所述标准是对ITU-T G.994.1建议G.994.1中定义的信号的检测 （国际电联）国际电信联盟。 或者，可以基于线的尺寸的测量来控制模式切换。