Patent · US Active

Enhanced passive scanning

US7675878B2 · kind B2 · utility

15Cited by

8References

15Claims

0Family size

Assignee

Motorola, Inc. · US

Inventors

Floyd D. Simpson · Boynton Beach, US
Stephen P. Emeott · Rolling Meadows, US
Brian K. Smith · Wellington, US
Timothy Wilson · Grasscroft, GB

Key dates

Filing date	Sep 10, 2004
Grant date	Mar 9, 2010
Priority date	—
Expiry date	Jan 15, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

This application describes an enhanced passive scanning method for a wireless local area network, including the steps of transmitting at least one of a beacon signal or a gratuitous probe response in a WLAN channel by an access point. The gratuitous probe response is a supplemental beacon signal that is transmitted at intervals between the occurrence of regular beacon signals, but contains only essential information to allow mobile station manage roaming and timing.

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