Synchronizing a telecommunications connection in a mobile communications system
US5978367A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of synchronizing a telecommunications connection in a mobile communications system having at least one base station, and having a first and at least a second mobile station communicating on a direct mode channel, the first mobile station operating on the direct mode channel transmits a registration message to the base station of the mobile communications system on a system channel of the mobile communications system, the registration message indicating a wish of the first mobile station to operate in dual watch mode on the control channel of the mobile communications system. In response to the registration message, a specific control channel of the base station and the timing information related to the control channel are communicated to the first mobile station, the first mobile station switches to dual watch mode in order to communicate either on the direct mode channel or on the allocated control channel during the time indicated by the timing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.