Using a push to talk over cellular infrastructure for radio communications
US8929938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Apr 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
At least one subscriber unit (SU) (110) can register with a radio frequency (RF) site (120) for radio services. For each registered SU, a SU push to talk over cellular (PoC) client (342-346) can be activated/established. Communications can be mapped at the RF Site (120) between each registered SU (110) and a corresponding SU PoC client (342-346). Each SU PoC client (342-346) at the RF site (120) can be communicatively linked to a remotely located PoC server (132) using a PoC interface (226). The SU PoC client (342-346) is a communication endpoint of the PoC server (132). In one embodiment, a talkgroup PoC client (350-352) can be established at the RF site (120) that is linked to the PoC server (132). Radio communications to and from the SU (110) can be routed through the SU PoC client (342-346) and/or the talkgroup PoC client (350-352) and through the PoC server (132).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.