Apparatus and method for broadcasting the detection of RF jammer presence
US8320872B2 · kind B2 · utility
3Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Feb 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The jamming of a radio frequency (RF) transmission after the vehicle is parked is detected. When the jamming is detected, an emergency message is broadcast on a first random access channel (RACH) associated with the vehicle according to a last known broadcast channel (BCH). When the jamming is detected, at least one last known neighbor serving cell from a stored data structure is determined, and the emergency message is broadcast on one or more second RACHs associated with each of the at least one last known neighbor serving cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.