Enhanced push to talk systems and methods with floor control and media traffic optimization
US9306991B2 · kind B2 · utility
1Cited by
14References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 16, 2012 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Apr 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An enhanced push to talk (PTT) method, a network, and a PTT server provide floor control and media traffic optimization for push to talk over cellular (PoC). Specifically, multiple Session Initiation Protocol (SIP) sessions are contemplated between controlling and participating servers while only requiring a single Real Time Protocol (RTP) session for media and a single Real Time Control Protocol (RTCP) session for floor control. In the single RTP and RTCP session, the synchronization source identifier (SSRC) can be used to differentiate between users equipment (UEs) at the controlling and participating servers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.