Apparatus and method for extending the coverage area of a licensed wireless communication system using an unlicensed wireless communication system
US7634269B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jan 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Extending the coverage area of a licensed wireless communication system using an unlicensed communication system is described. In one embodiment, the system comprises a mobile station operable to communicate with a telecommunications network using a licensed wireless communication channel serviced by the telecommunications network in a first mode and an unlicensed wireless communication channel in a second mode, a base station communicably coupled to the mobile station via the unlicensed wireless communication channel, and a network controller communicably coupled to the base station and adapted to communicate with the telecommunications network, wherein the mobile station includes call control to control a communication session with the telecommunications network through the network controller using the unlicensed wireless communication channel by exchanging call control information with the network controller via one or more messages having the A1 protocol message format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.