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ETSI
4.1.3 Common Commercial Requirements
The primary goal of new broadband satellite systems is to deliver a significantly higher net data rate in a given
transponder bandwidth than the current DVB-S standard. Technical specifications for such a new standard should not
prevent operators from taking into account all issues covered by local, national, and international laws, especially those
related to security (protection of personal data, encryption of data and services). The new specification will cover
transmit-end functions only, but take into account the consequent cost of receive silicon. The market will determine
what features are actually implemented in receive silicon. For the protection of existing business, the current DVB-S
standard will not be modified, nor will changes to other standards cause any existing feature to become invalid. The
new specification will contain a range of options for coding that are appropriate to a wide range of applications. The
new specifications will be application neutral and media content independent. The specifications will be transmission
frequency neutral, or contain the elements allowing for an adaptation to the specifics of certain frequency ranges (e.g.
Ka Band). Specifications for broadcast and non-broadcast applications will be provided by the definition of a limited
number of profiles. The specification will not prevent the use of any kind of scrambling and security system at the
transport layer.
4.2 Application scenarios
The DVB-S2 system has been optimized for the following broadband satellite application scenarios.
• Broadcast Services (BS): digital multi-programme Television (TV)/High Definition Television (HDTV)
broadcasting services
DVB-S2 is intended to provide Direct-To-Home (DTH) services for consumer Integrated Receiver Decoder
(IRD), as well as collective antenna systems (Satellite Master Antenna Television - SMATV) and cable
television head-end stations (possibly with remodulation, see ETSI EN 300 429 [i.6]). DVB-S2 may be
considered a successor to the current DVB-S standard ETSI EN 300 421 [i.1], and may be introduced for new
services and allow for a long-term migration. BS services are transported in MPEG Transport Stream format.
VCM may be applied on multiple transport stream to achieve a differentiated error protection for different
services (TV, HDTV, audio, multimedia).
• Interactive Services (IS): interactive data services including internet access
DVB-S2 is intended to provide interactive services to consumer IRDs and to personal computers, where
DVB-S2's forward path supersedes the DVB-S standard ETSI EN 300 421 [i.1] for interactive systems. No
recommendation is included in the DVB-S and DVB-S2 standards as far as the return path is concerned.
Therefore, interactivity can be established either via terrestrial connection through telephone lines, or via
satellite. DVB offers a variety of return link specifications, such as for example DVB-RCS
(ETSI EN 301 790 [i.36]), DVB-RCP (ETSI ETS 300 801 [i.37]), DVB-RCG (ETSI EN 301 195 [i.38]),
DVB-RCC (ETSI ES 200 800 [i.39]). Data services are transported in (single or multiple) Transport Stream
format according to ETSI EN 301 192 [i.5] (e.g. using Multiprotocol Encapsulation), or in (single or multiple)
generic stream format. DVB-S2 can provide Constant Coding and Modulation (CCM), or Adaptive Coding
and Modulation (ACM), where each individual satellite receiving station controls the protection mode of the
traffic addressed to it.
• Digital TV Contribution and Satellite News Gathering (DTVC/DSNG)
Digital television contribution applications by satellite consist of point-to-point or point-to-multipoint
transmissions, connecting fixed or transportable uplink and receiving stations. They are not intended for
reception by the general public. According to Recommendation ITU-R SNG.770-1 [i.40], SNG is defined as
"Temporary and occasional transmission with short notice of television or sound for broadcasting purposes,
using highly portable or transportable uplink earth stations, etc.". Services are transported in single (or
multiple) MPEG Transport Stream format. DVB-S2 can provide Constant Coding and Modulation (CCM), or
Adaptive Coding and Modulation (ACM). In this latter case, a single satellite receiving station typically
controls the protection mode of the full multiplex.