Patent · US Active

Signalling channel and radio system for power saving in wireless devices

US7672258B1 · kind B1 · utility

27Cited by

5References

8Claims

0Family size

Assignee

Nortel Networks Limited · CA

Inventors

Shiquan Wu · Ottawa, CA
Wen Tong · Ottawa, CA
Claude Royer · Kamloops, CA
Edward Sich · Gatineau, CA

Key dates

Filing date	Sep 24, 2004
Grant date	Mar 2, 2010
Priority date	—
Expiry date	Dec 5, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Wireless devices, transmitters, systems and methods are provided that have a narrow band signalling channel and a wide band channel, for example an OFDM channel. In order to save power, the wireless device is nominally powered down with the exception of a receiver specific to the narrow band signalling channel. Once instructed to do so over the narrow band signalling channel, the wireless device wakes up the rest of its wide band receive circuitry.

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