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DVB-RCS
DVB-RCS is an acronym for Digital Video Broadcasting - Return Channel via Satellite or (''Return channel over system''). It is a specification for an interactive on-demand multimedia satellite communication system formulated in 1999 by the DVB consortium.
==Chronology==
The 5th revision of the DVB-RCS standard was completed in 2008. A major update included the very first broadband mobile standardization. This extended version, formally referred to as "ETSI EN 301 790 v 1.5.1" is also known as "DVB-RCS+M". The "+M" version added several new features, such as the ability to use "DVB-S2" bursts in the uplink channel back to the satellite. It incorporated signal fade mitigation techniques and other solutions to combat short term signal loss.
In contrast to other satellite communications systems, DVB-RCS was created in an open environment where any DVB member can participate. DVB membership is open to all companies willing to subscribe. The work group called "DVB TM-RCS" is currently pursuing other technical solutions for the approved commercial system.
In 2009 technical work started for a new version of DVB-RCS called "DVB-RCS NG" (Next Generation). In this more powerful version of the standard "RCS2" there will be support for Higher Layers for Satellite (HLS) communication.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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