Patent · US Active

Method and apparatus for determining propagation delays for use in wide area networks

US8078114B2 · kind B2 · utility

2Cited by

4References

12Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Judd Erlenbach · San Diego, US
Franklin J. Gutterman · San Diego, US
Bin Tian · San Diego, US

Key dates

Filing date	Mar 4, 2008
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Mar 26, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04L7/08
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A system and method for determining a signal propagation delay between a transmitter and a receiver, and for adjusting a transmission time based on the propagation delay. A central station inserts a marker into a transmitted signal at a time corresponding to a received timing signal. The MCT receives the signal from the central station and determines a time difference between receipt of the marker and the detection of the time interval event. A transmission by the MCT is adjusted by an amount of time proportional to the time difference.

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