Method and system for setting up a call to a mobile station via another mobile station
US7720021B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jan 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for a setting up a call to a mobile station using an intermediary mobile station. The intermediary mobile station is a multi-mode device that may exchange data according to at least two different protocols. One protocol is a cellular communication protocol, such as CDMA. A second protocol is a WLAN protocol, such as 802.11. When a RAN attempts to setup a call with a first mobile station and the call attempt fails, the RAN establishes a cellular wireless link with the intermediary mobile station instead, and the intermediary mobile station establishes a WLAN link with the first mobile station. Call setup and bearer communication may then proceed between the RAN and the first mobile station with the intermediary mobile station functioning as a wireless bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.