RF channel switching in broadcast OFDM systems
US7706288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2006 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Apr 29, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.