Mobile communications system
US6512924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1999 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
To register current codec types of a mobile station with a network side, the mobile station 11 notifies, when it conducts the location registration or a mobile user replaces his or her old mobile station, a visitor location switching system 5, which is associated with the current location of the mobile station, of the codec types supported by the mobile station 11 using a mobile communication control signal between the mobile station and the mobile network. Receiving the notification, the visitor location switching system 5 enters the update of the codec types into a location register 41 in a memory home station that controls the mobile network 2. The codec types can be thus registered into the mobile network 2 using the mobile communication control signal. Since the mobile network 2 can always acquire the latest codec types for the mobile station, the discrepancy is canceled between the codecs the mobile station supports and the codecs the network registers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.