Patent · US Expired

Time dispersion measurement in radio communications systems

US6084862A · kind A · utility

20Cited by

6References

15Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Peter Bjork · Mölndal, SE
Linus Ericsson · Täby, SE
Johan Sköld · Solna, SE

Key dates

Filing date	Sep 26, 1997
Grant date	Jul 4, 2000
Priority date	—
Expiry date	Sep 26, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/20
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Time dispersion of a signal that has been received from a channel is measured by utilizing metrics to determine the energy inside an equalizer window and outside of the equalizer window. In one embodiment, the estimate of the energy outside the window is a difference between residual interference estimates. In another embodiment, the estimate of the energy outside the window is a difference between residual impulse response power estimates.

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