Method for handover between asynchronous communication network and synchronous communication network
US7826423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2005 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Aug 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/0066
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In the handover method, a radio network controller periodically measures the wireless environment of a mobile communication terminal, determines whether handover is required, and informs the asynchronous mobile switching center of the asynchronous communication system that the handover is required. The asynchronous mobile switching center requests the handover and a synchronous mobile switching center assigns a forward channel to the mobile communication terminal. The mobile communication terminal prepares for communication with a synchronous mobile communication system according to the direction of the asynchronous mobile switching center, and causes a backward channel with respect to the synchronous communication system to be assigned to the mobile communication terminal. The synchronous mobile switching center informs the asynchronous mobile switching center that handover has been completed, and causes a connection between the asynchronous mobile switching center and the radio network controller to be released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.