Multiplexing and demultiplexing radio channels
US9049737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2011 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Feb 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method and apparatus of multiplexing and demultiplexing radio channels includes receiving data through at least one multicast media channel available for use in an Internet Protocol Interoperability and Communications System (IPICS) comprising multiple communication endpoints linkable to a Land Mobile Radio (LMR) in the IPICS; channel mapping the at least one multicast media channel to multiple media channels of the LMR; receiving an audio signal through the at least one multicast media channel; controlling access to the LMR by applying communication access control policies based on the received data upon reception of the audio signal; and operatively linking the LMR to a specified endpoint through the at least one multicast media channel based on the communication access control policies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.