Group call capability in a wireless network
US6377560B1 · kind B1 · utility
29Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1998 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Oct 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless network with a group call capability. The wireless network includes a mobile switching center connected to a plurality of base stations each serving a portion of the wireless network and communicating with mobile stations on a plurality of channels. Each base station allocates one of the channels for the group call. Each mobile station in the group sends an acknowledgement of the group call to the base station serving the area where the mobile is located. Each base station that did not receive an acknowledgement frees the allocated channel for use in other calls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.