Method and apparatus for sensing channel availability in wireless networks
US8537730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2006 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/077
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for sensing channel availability in a wireless network are described including switching to a first candidate channel for operational data transmission and reception sensing a previous operating channel for availability, determining if the previous operating channel is available, switching back to the previous operating channel if the previous operating channel is available and one of continuing to use the candidate channel for operational data transmission and reception and immediately switching to a second candidate channel for operational data transmission and reception and switching to the second candidate channel for operational data transmission and reception after a pre-determined period of time. Also described is a system for sensing channel availability in a cognitive network including an RF unit, for switching channels, a sensing unit for sensing channel availability and a media access control unit for controlling the sensing unit and the RF unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.