Dynamic frequency selection scheme for IEEE 802.11 WLANs
US7206840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Mar 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method and system for dynamically selecting a communication channel between an access point (AP) and a plurality of stations (STAs) in an IEEE 802.11 wireless local area network (WLAN). The method includes the steps of: determining whether a new channel to be used by the plurality of STAs is needed; measuring the channel quality of a plurality of frequency channels by at least one of the plurality of STAs; reporting the quality of the plurality of frequency channels in terms of a received signal strength indication (RSSI), Clear Channel Assessment (CCA) busy periods and periodicity; and, selecting one of the candidate channels based on the channel quality report for use in communication between the AP and the plurality of STAs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.