Broadcast channels for wireless telephony
US7330693B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/91
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless system and method for providing informative broadcast services includes a plurality of base stations, each serving a plurality of wireless communications device users via a plurality of communications channels. An alert message is first transmitted to wireless communications devices advising of the availability of a broadcast message and identifying an associated communications channel. The base station then transmits the broadcast message to the plurality of users on the identified channel. The wireless communications devices may automatically switch to the broadcast channel, for example, when there is a weather or other emergency, or may offer the user the opportunity to change channels. Also, a user may initiate a request to access a broadcast channel for services such as news, sports, or stock reports on a subscription basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.