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Digital Video Broadcasting - Terrestrial version 2 (DVB-S2) is an improved version of the DVB-T standard for digital terrestrial television distribution. DVB-T2 improves the transmission technique giving 30% greater efficiency then DVB-T. This improved efficiency can be used to provide a higher capacity and/or more robustness.
DVB-T2 support the DVB's new Generic Stream Encapsulation, an effective means of delivering IP directly.
Another new feature of DVB-T2 is that it can offer a mixture of services with service-specific robustness. This is called multiple Physical Layer Pipes (PLPs). For example, a single DVB-T2 multiplex could carry a mixture of HDTV aiming at household television sets, as well as some low-bit rate, more rugged services aiming at portable receivers.
DVB-T2 can also provide robust mobile reception at high speeds. To facilitate the implementation of mobile application, DVB has also defined a mobile profile of T2 called DVB-T2 Lite.
DVB-T2 is backward compatible with DVB-T. It can be deployed within the current DVB-T network of transmitters and antennas. DVB-T2 needs a new modulator in the transmitters and consumers will have to buy a new set-top-box.
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