Intersystem call transfer method for use in cellular mobile radio systems
US7162245B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2001 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Aug 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for intersystem transfer of calls from a first cellular mobile radio system using the macrodiversity transmission technique to a second cellular mobile radio system, the macrodiversity transmission using a radio network controller of the first system, referred to as the serving controller, and at least one other radio network controller of the first system, referred to as the drift controller, wherein adjoining cell information relating to the second system is signaled to the serving controller by at least one drift controller controlling at least one serving cell belonging to the first system and having at least one adjoining cell belonging to the second system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.