Group call control in a wireless broadband communication network
US8422448B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for group call control in a broadband wireless network. A group call (push-to-talk) server initiates and regulates group call communication sessions. A wireless base station communicates with one or more group call participants. When a request to participate in a group call is received, it is examined to see if it contains a group call ID or other group call indicator. If not, regular call resources are allocated, if available. If so, it is determined whether another group member is attached to the base station. Group call resources are then reserved, if available, based on this determination. The resources allocated for the group call may also depend on whether the system supports multicast on the downlink to group members, or whether losing audio is supported. In some embodiments, network resources may be reallocated to support the group call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.