Patent · US Active

Media channel management

US8046479B2 · kind B2 · utility

22Cited by

11References

4Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Torbjörn Einarsson · Stockholm, SE
Uwe Horn · Aachen, DE
Thorsten Lohmar · Aachen, DE
Ignacio Mas Ivars · Tullinge, SE

Key dates

Filing date	Jul 11, 2007
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Jul 4, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/643
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of managing a unicast-based media session is disclosed. A user terminal having access to channel identifiers of media channels available at a media server compiles a SIP-based channel request comprising a channel identifier of one of the available media channels and a port identifier of at least one media input port of the terminal. This message is sent to a network node for initiating delivery of media data of selected media channel to the announced media input port. The SIP-based data signaling also allows switching between unicast-based media channels and switching between unicast-bast and multicast/broadcast-based media channels during the ongoing media session.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.