US 2007/0165788 A1 · WIRED TRANSMISSION LINE TESTING METHOD

Abstract

The present invention relates to a wired transmission line testing method for determining at least one physical characteristic of a wired transmission line where the wired transmission line is coupled between a first line transceiver device and a second transceiver device. The wired transmission line testing method first comprises the steps of a first transceiver sending a first known excitation signal over the wired transmission line and subsequently the step of the first transceiver and the second transceiver both generating a first representation of a received signal respectively including reflected or forwarded portions of the known excitation signal and third a processing part deriving at least one physical characteristic of the wired transmission line based on the first representations generated by the first transceiver and the second transceiver. Furthermore, the wired transmission line testing method may comprise the additional steps of the second transceiver sending a second known excitation signal, then first transceiver and second transceiver both generating a second representation of a received signal respectively including forwarded or reflected portions of the second known excitation signal and the processing part deriving the at least one physical characteristic of the wired transmission line based on the first and second representations generated by the first transceiver and the second transceiver.

Claims10

Dependent claims

Wired transmission line testing method for determining at least one physical characteristic of a wired transmission line (ADSL), said wired transmission line (ADSL) being coupled between a first line transceiver device (CO, CPE) and a second transceiver device (CPE, CO), said method comprising the step of:

a. said first transceiver (CO, CPE) sending a first known excitation signal over said wired transmission line (ADSL), CHARACTERIZED IN THAT said method further comprises the steps of:
b. said first transceiver (CO, CPE) and said second transceiver (CPE, CO) both generating a first representation of a received signal respectively including reflected or forwarded portions of said known excitation signal;
and
c. a processing part (PP) deriving said at least one physical characteristic of said wired transmission line (ADSL) based on said first representations generated by said first transceiver (CO, CPE) and said second transceiver (CPE, CO).

1 more element

Wired transmission line testing system for determining at least one physical characteristic of a wired transmission line (ADSL), said line testing system comprising a wired transmission line (ADSL) being coupled between a first transceiver (CO, CPE) and a second transceiver (CPE, CO), said wired transmission line testing system comprising

a. a first transmit unit (ESSP1) in said first transceiver (CO, CPE) adapted to send a first known excitation signal over said wired transmission line (ADSL), CHARACTERIZED IN THAT
said wired transmission line system further comprises the following parts:
b. a first signal representation generating Part (SRGP1) in said first transceiver (CO, CPE) adapted to generate a first representation of a received signal including reflected portions of said first known excitation signal;
and
c. a second signal representation generating Part (SRGP2) in said second transceiver (CPE, CO) adapted to generate a first representation of a received signal including forwarded portions of said first known excitation signal;
d. a processing part (PP), adapted to derive at least one physical characteristic of said wired transmission line (ADSL) from said first representations generated by said first transceiver (CO, CPE) and said second transceiver (CPE, CO).

3 more elements

Dependencies are inferred from the claim text.

Wired transmission line testing method

Life of this patent

Wired transmission line testing method

Life of this patent

Abstract

Claims10