公开(公告)号：US09374132B2

公开(公告)日：2016-06-21

申请号：US13730316

申请日：2012-12-28

Applicant: Broadcom Corporation

Inventor： Raphael Paul Cassiers ,  Miguel Peeters

IPC: H04B1/38 ,  H04B3/32 ,  H04B3/487 ,  H04M3/30 ,  H04M3/34 ,  H04L25/08 ,  H04M3/18

CPC classification number: H04B3/32 ,  H04B3/487 ,  H04L25/085 ,  H04M3/18 ,  H04M3/304 ,  H04M3/34

Abstract: A DSL transmitter and receiver are disclosed that are capable of accurately measuring crosstalk in G.vector-compliant DSL lines resulting from a legacy line. During crosstalk measurement, the legacy line can be placed in a showtime mode. Once in showtime mode, a data signal designated for the legacy line is reduced in power spectrum density and/or spectrum to reduce its effects on crosstalk measurements. An O-P-Vector-1 signal is then superposed on the reduced data signal, and the resulting test signal is transmitted over the legacy line while sync signals are transmitted over neighboring G.vector lines. The receiver can then accurately measure the crosstalk on the neighboring lines, and report back to the transceiver for adjustments. A similar configuration can be performed in a diagnostic mode of the legacy line.

Abstract translation: 公开了一种DSL发射器和接收器，其能够精确地测量由传统线路产生的G.vector兼容DSL线路中的串扰。 在串音测量期间，传统线路可以放置在播放时间模式。 一旦显示时间模式，在功率谱密度和/或频谱中降低了为传统线指定的数据信号，以减少其对串扰测量的影响。 然后将O-P-Vector-1信号叠加在缩小的数据信号上，并且所得到的测试信号通过传统线路传输，同时信号在相邻的G.vector线路上传输。 然后，接收机可以准确测量相邻线路上的串扰，并将其报告给收发器进行调整。 可以在传统线路的诊断模式下执行类似的配置。

公开(公告)号：US20140185659A1

公开(公告)日：2014-07-03

申请号：US13730316

申请日：2012-12-28

Applicant: BROADCOM CORPORATION

Inventor： Raphael Paul Cassiers ,  Miguel Peeters

IPC: H04B3/32

CPC classification number: H04B3/32 ,  H04B3/487 ,  H04L25/085 ,  H04M3/18 ,  H04M3/304 ,  H04M3/34

Abstract: A DSL transmitter and receiver are disclosed that are capable of accurately measuring crosstalk in G.vector-compliant DSL lines resulting from a legacy line. During crosstalk measurement, the legacy line can be placed in a showtime mode. Once in showtime mode, a data signal designated for the legacy line is reduced in power spectrum density and/or spectrum to reduce its effects on crosstalk measurements. An O-P-Vector-1 signal is then superposed on the reduced data signal, and the resulting test signal is transmitted over the legacy line while sync signals are transmitted over neighboring G.vector lines. The receiver can then accurately measure the crosstalk on the neighboring lines, and report back to the transceiver for adjustments. A similar configuration can be performed in a diagnostic mode of the legacy line.

Abstract translation: 公开了一种DSL发射器和接收器，其能够精确地测量由传统线路产生的G.vector兼容DSL线路中的串扰。 在串音测量期间，传统线路可以放置在播放时间模式。 一旦显示时间模式，在功率谱密度和/或频谱中降低了为传统线指定的数据信号，以减少其对串扰测量的影响。 然后将O-P-Vector-1信号叠加在缩小的数据信号上，并且所得到的测试信号通过传统线路传输，同时信号在相邻的G.vector线路上传输。 然后，接收机可以准确测量相邻线路上的串扰，并将其报告给收发器进行调整。 可以在传统线路的诊断模式下执行类似的配置。