Patent · US Active

Single ended line test methods for time duplex division devices

US9667464B2 · kind B2 · utility

0Cited by

0References

21Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Per-Erik Eriksson · Stockholm, SE
Miguel Berg · Upplands Väsby, SE
Daniel Cederholm · Stockholm, SE
Klas Ericson · Ayacucho, PE
Chenguang Lu · Sollentuna, SE

Key dates

Filing date	Feb 14, 2012
Grant date	May 30, 2017
Priority date	—
Expiry date	Jun 5, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04M3/306
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to a Time Duplex Division (TDD) modem and a method in such a modem for making Single Ended Line Test (SELT) measurements. The device comprises a transmitter and a receiver and it has a normal mode of TDD communication. In these devices, Time Domain Reflectometry (TDR) is used as line measurement. It has a number of drawbacks, and for overcoming said drawbacks, Frequency Domain Reflectometry (FDR) measurement techniques adapted for TDD devices are suggested.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.