Methods and apparatus for using multiple frequency bands for communication
US8078111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | May 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for using different frequency bands are described. In some embodiments a first frequency band which is a licensed spectrum frequency band is used for peer discovery, device authentication, session establishment between peer devices and/or supporting an ongoing communications through control signaling. When available, a second frequency band, e.g., an unlicensed public frequency band is used for communicating data while the communications session is maintained using one or more control signals communicated in the first frequency band. Data and control signaling may be performed on a time division basis during a time period in which data is communicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.