Communication device for joining a user to a group call in a group communication network
US6898436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Aug 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/186
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for joining a user to a call in a group communication network provides for receiving an indication from a user who wishes to initiate a group call and sending a request to a server to add the user to the group call if the group call is in progress. The method and apparatus also provides for receiving a response from the server indicating that the group call is in progress, alerting the user of being added to the group call, and receiving media from the server after a traffic channel is re-established. The method and apparatus also provides for a significant reduction in the actual total dormancy wakeup time and latency by exchanging group call signaling even when mobiles are dormant and no traffic channel is active.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.