Method for performing inter-system handovers in a mobile communication system
US7640036B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jan 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for performing inter-system handovers in a communication system comprising at least a mobile station, a call state control function, a first and a second call control node, a first and a second media gateway and a radio network node. The handover is achieved by way of connecting a call control node to a call state control function. The call control node allocates a media gateway for the session established. The session media bearers are routed via the media gateway. The call control node acts as an anchor node for the handover. As the mobile station moves to a new cell a media bearer is established to the media gateway from the mobile station via the new cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.