ETSI EN 302 307 V1.1.2 (2006-06)
`
`European Standard (Telecommunications series)
`
`Digital Video Broadcasting (DVB);
`Second generation framing structure, channel coding and
`modulation systems for Broadcasting, Interactive Services,
`News Gathering and other broadband satellite applications
`
`European B roadcasting Union
`
`U nion Européenne de R adio-Télévision
`
`EBU·UER
`
`1
`
`LGE 1009
`
`

`

`2
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`Reference
`REN/JTC-DVB-196
`
`Keywords
`BSS, modulation
`
`ETSI
`
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`
`Important notice
`
`Individual copies of the present document can be downloaded from:
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`The present document may be made available in more than one electronic version or in print. In any case of existing or
`perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
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`within ETSI Secretariat.
`
`Users of the present document should be aware that the document may be subject to revision or change of status.
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`
`Copyright Notification
`
`No part may be reproduced except as authorized by written permission.
`The copyright and the foregoing restriction extend to reproduction in all media.
`
`© European Telecommunications Standards Institute 2006.
`© European Broadcasting Union 2006.
`All rights reserved.
`
`DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members.
`TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members.
`3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
`
`ETSI
`
`

`

`3
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`Contents
`
`Intellectual Property Rights ................................................................................................................................5
`
`Foreword.............................................................................................................................................................5
`
`1
`
`2
`
`3
`3.1
`3.2
`
`4
`4.1
`4.2
`4.3
`
`Scope ........................................................................................................................................................6
`
`References ................................................................................................................................................8
`
`Symbols and abbreviations.......................................................................................................................9
`Symbols..............................................................................................................................................................9
`Abbreviations ...................................................................................................................................................10
`
`Transmission system description............................................................................................................11
`System definition..............................................................................................................................................11
`System architecture ..........................................................................................................................................12
`System configurations ......................................................................................................................................13
`
`5
`5.1
`5.1.1
`5.1.2
`5.1.3
`5.1.4
`5.1.5
`5.1.6
`5.2
`5.2.1
`5.2.2
`5.3
`5.3.1
`5.3.2
`5.3.2.1
`5.3.2.2
`5.3.3
`5.4
`5.4.1
`5.4.2
`5.4.3
`5.4.4
`5.5
`5.5.1
`5.5.2
`5.5.2.1
`5.5.2.2
`5.5.2.3
`5.5.2.4
`5.5.3
`5.5.4
`5.6
`
`Subsystems specification........................................................................................................................14
`Mode adaptation ...............................................................................................................................................14
`Input interface .............................................................................................................................................14
`Input stream synchronizer (optional, not relevant for single TS - BS) .......................................................15
`Null-Packet Deletion (ACM and Transport Stream only) ..........................................................................15
`CRC-8 encoder (for packetized streams only) ............................................................................................15
`Merger/Slicer ..............................................................................................................................................16
`Base-Band Header insertion .......................................................................................................................17
`Stream adaptation .............................................................................................................................................18
`Padding .......................................................................................................................................................19
`BB scrambling ............................................................................................................................................19
`FEC encoding ...................................................................................................................................................19
`Outer encoding (BCH)................................................................................................................................20
`Inner encoding (LDPC) ..............................................................................................................................21
`Inner coding for normal FECFRAME...................................................................................................22
`Inner coding for short FECFRAME ......................................................................................................23
`Bit Interleaver (for 8PSK, 16APSK and 32APSK only).............................................................................23
`Bit mapping into constellation..........................................................................................................................25
`Bit mapping into QPSK constellation.........................................................................................................25
`Bit mapping into 8PSK constellation..........................................................................................................25
`Bit mapping into 16APSK constellation .....................................................................................................26
`Bit mapping into 32APSK ..........................................................................................................................27
`Physical Layer (PL) framing ............................................................................................................................27
`Dummy PLFRAME insertion .....................................................................................................................28
`PL signalling ...............................................................................................................................................28
`SOF field ...............................................................................................................................................29
`MODCOD field.....................................................................................................................................29
`TYPE field ............................................................................................................................................29
`PLS code ...............................................................................................................................................29
`Pilots insertion ............................................................................................................................................30
`Physical layer scrambling ...........................................................................................................................30
`Baseband shaping and quadrature modulation .................................................................................................32
`
`6
`
`Error performance ..................................................................................................................................33
`
`Annex A (normative):
`
`Signal spectrum at the modulator output....................................................34
`
`Annex B (normative):
`
`Addresses of parity bit accumulators for nldpc = 64 800..........................36
`
`Annex C (normative):
`
`Addresses of parity bit accumulators for nldpc = 16 200...........................45
`
`Annex D (normative):
`
`Additional Mode Adaptation and ACM tools .............................................48
`
`ETSI
`
`

`

`4
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`D.1
`
`"ACM Command" signalling interface ..................................................................................................48
`
`D.2
`
`Input stream synchronizer ......................................................................................................................48
`
`D.3 Null-packet Deletion (normative for input transport streams and ACM)...............................................50
`
`D.4 BBHEADER and Merging/slicing Policy for various application areas................................................51
`
`D.5 Signalling of reception quality via return channel (Normative for ACM) .............................................52
`
`Annex E (normative):
`
`SI and signal identification for DSNG and contribution applications ......54
`
`Annex F (normative):
`
`Backwards Compatible modes (optional)....................................................55
`
`Annex G (informative):
`
`Supplementary information on receiver implementation ..........................58
`
`G.1 Carrier recovery......................................................................................................................................58
`
`G.2 FEC decoding .........................................................................................................................................58
`
`G.3 ACM: Transport Stream regeneration and clock recovery using ISCR .................................................61
`
`G.4 Non linearity pre-compensation and Intersymbol Interference suppression techniques ........................61
`
`G.5
`
`Interactive services using DVB-RCS return link: user terminal synchronization..................................62
`
`Annex H (informative):
`
`Examples of possible use of the System........................................................63
`
`H.1 CCM digital TV broadcasting: bit rate capacity and C/N requirements ................................................63
`
`H.2 Distribution of multiple TS multiplexes to DTT Transmitters (Multiple TS, CCM).............................65
`
`H.3 SDTV and HDTV broadcasting with differentiated protection (VCM, Multiple TS) ...........................66
`
`H.4 DSNG Services using ACM (Single transport Stream, information rate varying in time) ....................66
`
`H.5
`
`IP Unicast Services (Non-uniform protection on a user-by-user basis) .................................................67
`
`H.6 Example performance of BC modes.......................................................................................................69
`
`H.7 Satellite transponder models for simulations .........................................................................................70
`
`H.8 Phase noise masks for simulations .........................................................................................................72
`
`Annex I (informative):
`
`Bibliography ...................................................................................................73
`
`History ..............................................................................................................................................................74
`
`ETSI
`
`

`

`5
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`Intellectual Property Rights
`
`IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
`pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
`in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
`respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
`server (http://webapp.etsi.org/IPR/home.asp).
`
`Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
`can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
`server) which are, or may be, or may become, essential to the present document.
`
`Foreword
`
`This European Standard (Telecommunications series) has been produced by Joint Technical Committee (JTC)
`Broadcast of the European Broadcasting Union (EBU), Comité Européen de Normalisation ELECtrotechnique
`(CENELEC) and the European Telecommunications Standards Institute (ETSI).
`
`The work of the JTC was based on the studies carried out by the European DVB Project under the auspices of
`theAd Hoc Group on DVB-S2 of the DVB Technical Module. This joint group of industry, operators and broadcasters
`provided the necessary information on all relevant technical matters (see bibliography).
`
`NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to co-ordinate the drafting of standards in the
`specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body
`by including in the Memorandum of Understanding also CENELEC, which is responsible for the
`standardization of radio and television receivers. The EBU is a professional association of broadcasting
`organizations whose work includes the co-ordination of its members' activities in the technical, legal,
`programme-making and programme-exchange domains. The EBU has active members in about
`60 countries in the European broadcasting area; its headquarters is in Geneva.
`
`European Broadcasting Union
`CH-1218 GRAND SACONNEX (Geneva)
`Switzerland
`Tel:
`+41 22 717 21 11
`Fax: +41 22 717 24 81
`
`Founded in September 1993, the DVB Project is a market-led consortium of public and private sector organizations in
`the television industry. Its aim is to establish the framework for the introduction of MPEG-2 based digital television
`services. Now comprising over 200 organizations from more than 25 countries around the world, DVB fosters
`market-led systems, which meet the real needs, and economic circumstances, of the consumer electronics and the
`broadcast industry.
`
`National transposition dates
`
`Date of latest announcement of this EN (doa):
`
`30 September 2006
`
`Date of latest publication of new National Standard
`or endorsement of this EN (dop/e):
`
`31 March 2007
`
`Date of withdrawal of any conflicting National Standard (dow):
`
`31 March 2007
`
`ETSI
`
`

`

`6
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`1
`
`Scope
`
`DVB-S (EN 300 421 [2]) was introduced as a standard in 1994 and DVB-DSNG (EN 301 210 [3]) in 1997. The DVB-S
`standard specifies QPSK modulation and concatenated convolutional and Reed-Solomon channel coding, and is now
`used by most satellite operators worldwide for television and data broadcasting services. DVB-DSNG specifies, in
`addition to DVB-S format, the use of 8PSK and 16QAM modulation for satellite news gathering and contribution
`services.
`
`Since 1997, digital satellite transmission technology has evolved somewhat:
`
`•
`
`•
`
`•
`
`•
`
`New channel coding schemes, combined with higher order modulation, promise more powerful alternatives to
`the DVB-S/DVB-DSNG coding and modulation schemes. The result is a capacity gain in the order of 30 % at
`a given transponder bandwidth and transmitted EIRP, depending on the modulation type and code rate.
`
`Variable Coding and Modulation (VCM) may be applied to provide different levels of error protection to
`different service components (e.g. SDTV and HDTV, audio, multimedia).
`
`In the case of interactive and point-to-point applications, the VCM functionality may be combined with the use
`of return channels, to achieve Adaptive Coding and Modulation (ACM). This technique provides more exact
`channel protection and dynamic link adaptation to propagation conditions, targeting each individual receiving
`terminal. ACM systems promise satellite capacity gains of up to 100 %-200 %. In addition, service availability
`may be extended compared to a constant protection system (CCM) such as DVB-S or DVB-DSNG. Such
`gains are achieved by informing the satellite up-link station of the channel condition (e.g. C/N+I) of each
`receiving terminal via the satellite or terrestrial return channels.
`
`DVB-S and DVB-DSNG are strictly focused on a unique data format, the MPEG Transport Stream
`(ISO/IEC 13818-1 [1] or a reference to it). Extended flexibility to cope with other input data formats (such as
`multiple Transport Streams, or generic data formats) is now possible without significant complexity increase.
`
`The present document defines a "second generation" modulation and channel coding system (denoted the "System" or
`"DVB-S2" for the purposes of the present document) to make use of the improvements listed above. DVB-S2 is a
`single, very flexible standard, covering a variety of applications by satellite, as described below. It is characterized by:
`
`•
`
`•
`
`•
`
`•
`
`•
`
`A flexible input stream adapter, suitable for operation with single and multiple input streams of various
`formats (packetized or continuous);
`
`a powerful FEC system based on LDPC (Low-Density Parity Check) codes concatenated with BCH codes,
`allowing Quasi-Error-Free operation at about 0,7dB to 1 dB from the Shannon limit, depending on the
`transmission mode (AWGN channel, modulation constrained Shannon limit);
`
`a wide range of code rates (from 1/4 up to 9/10); 4 constellations, ranging in spectrum efficiency from
`2 bit/s/Hz to 5 bit/s/Hz, optimized for operation over non-linear transponders;
`
`a set of three spectrum shapes with roll-off factors 0,35, 0,25 and 0,20;
`
`Adaptive Coding and Modulation (ACM) functionality, optimizing channel coding and modulation on a
`frame-by-frame basis.
`
`The System has been optimized for the following broadband satellite applications:
`
`Broadcast Services (BS) Digital multi-programme Television (TV)/High Definition Television (HDTV)
`
`Broadcasting services to be used for primary and secondary distribution in the Fixed Satellite Service (FSS) and the
`Broadcast Satellite Service (BSS) bands.
`
`ETSI
`
`

`

`7
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`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 EN 300 429 [6]). DVB-S2 may be considered a successor to the current
`DVB-S standard EN 300 421 [2], 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). Two modes are
`available:
`
`•
`
`•
`
`NBC-BS (Non Backwards Compatible Broadcast Services) is not backwards-compatible with EN 300 421 [2].
`
`BC-BS (Backwards-Compatible Broadcast Services) is backwards-compatible to EN 300 421 [2]
`(see annex F).
`
`In fact, with a large number of DVB-S receivers already installed, backwards compatibility may be required for a period
`of time, where old receivers continue to receive the same capacity as before, while the new DVB-S2 receivers could
`receive additional capacity broadcasts. When the complete receiver population has migrated to DVB-S2, the transmitted
`signal can be modified to a non-backward compatible mode, thus exploiting the full potential of DVB-S2. To facilitate
`the reception of DVB-S services by DVB-S2 receivers, implementation of DVB-S in DVB-S2 chips is highly
`recommended.
`
`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 current DVB-S standard EN 300 421 [2] for interactive systems. The return path can be
`implemented using various DVB interactive systems, such as DVB-RCS (EN 301 790 [7]), DVB-RCP
`(ETS 300 801 [8]), DVB-RCG (EN 301 195 [9]), DVB-RCC (ES 200 800 [10]). Data services are transported in (single
`or multiple) Transport Stream format according to EN 301 192 [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. Input Stream Adaptation for ACM is specified in annex D.
`
`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 ITU-R Recommendation SNG.770-1 [11], 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 ...". 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. Input Stream Adaptation for
`ACM is specified in annex D.
`
`Data content distribution/trunking and other professional applications (PS)
`
`These services are mainly point-to-point or point-to-multipoint, including interactive services to professional head-ends,
`which re-distribute services over other media. Services may be transported in (single or multiple) generic stream format.
`The system can provide Constant Coding and Modulation (CCM), Variable Coding and Modulation (VCM) or
`Adaptive Coding and Modulation (ACM). In this latter case, a single satellite receiving station typically controls the
`protection mode of the full TDM multiplex, or multiple receiving stations control the protection mode of the traffic
`addressed to each one. In either case, interactive or non-interactive, the present document is only concerned with the
`forward broadband channel.
`
`DVB-S2 is suitable for use on different satellite transponder bandwidths and frequency bands. The symbol rate is
`matched to given transponder characteristics, and, in the case of multiple carriers per transponder (FDM), to the
`frequency plan adopted. Examples of possible DVB-S2 use are given in clause H.1.
`
`Digital transmissions via satellite are affected by power and bandwidth limitations. Therefore DVB-S2 provides for
`many transmission modes (FEC coding and modulations), giving different trade-offs between power and spectrum
`efficiency (see annex H.1). For some specific applications (e.g. broadcasting) modes such as QPSK and 8PSK, with
`their quasi-constant envelope, are appropriate for operation with saturated satellite power amplifiers (in single carrier
`per transponder configuration). When higher power margins are available, spectrum efficiency can be further increased
`to reduce bit delivery cost. In these cases also 16APSK and 32APSK can operate in single carrier mode close to the
`satellite HPA saturation by pre-distortion techniques. All the modes are appropriate for operation in quasi-linear
`satellite channels, in multi-carrier Frequency Division Multiplex (FDM) type applications.
`
`ETSI
`
`

`

`8
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`DVB-S2 is compatible with Moving Pictures Experts Group (MPEG-2 and MPEG-4) coded TV services (see
`ISO/IEC 13818-1 [1]), with a Transport Stream packet multiplex. Multiplex flexibility allows the use of the
`transmission capacity for a variety of TV service configurations, including sound and data services. All service
`components are Time Division Multiplexed (TDM) on a single digital carrier.
`
`The present document:
`
`•
`
`•
`
`•
`
`gives a general description of the DVB-S2 system;
`
`specifies the digitally modulated signal in order to allow compatibility between pieces of equipment developed
`by different manufacturers. This is achieved by describing in detail the signal processing principles at the
`modulator side, while the processing at the receive side is left open to different implementation solutions.
`However, it is necessary in the present document to refer to certain aspects of reception;
`
`identifies the global performance requirements and features of the System, in order to meet the service quality
`targets.
`
`2
`
`References
`
`The following documents contain provisions which, through reference in this text, constitute provisions of the present
`document.
`
`•
`
`•
`
`•
`
`References are either specific (identified by date of publication and/or edition number or version number) or
`non-specific.
`
`For a specific reference, subsequent revisions do not apply.
`
`For a non-specific reference, the latest version applies.
`
`Referenced documents which are not found to be publicly available in the expected location might be found at
`http://docbox.etsi.org/Reference.
`
`[1]
`
`[2]
`
`[3]
`
`[4]
`
`[5]
`
`[6]
`
`[7]
`
`[8]
`
`[9]
`
`[10]
`
`[11]
`
`ISO/IEC 13818 (parts 1 and 2): "Information technology - Generic coding of moving pictures and
`associated audio information".
`
`ETSI EN 300 421 (V.1.1.2): "Digital Video Broadcasting (DVB); Framing structure, channel
`coding and modulation for 11/12 GHz satellite services".
`
`ETSI EN 301 210: "Digital Video Broadcasting (DVB); Framing structure, channel coding and
`modulation for Digital Satellite News Gathering (DSNG) and other contribution applications by
`satellite".
`
`ETSI TR 101 154: "Digital Video Broadcasting (DVB); Implementation guidelines for the use of
`MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applications".
`
`ETSI EN 301 192: "Digital Video Broadcasting (DVB); DVB specification for data broadcasting".
`
`ETSI EN 300 429: "Digital Video Broadcasting (DVB); Framing structure, channel coding and
`modulation for cable systems".
`
`ETSI EN 301 790: "Digital Video Broadcasting (DVB); Interaction channel for satellite
`distribution systems".
`
`ETSI ETS 300 801: "Digital Video Broadcasting (DVB); Interaction channel through Public
`Switched Telecommunications Network (PSTN)/ Integrated Services Digital Networks (ISDN)".
`
`ETSI EN 301 195: "Digital Video Broadcasting (DVB); Interaction channel through the Global
`System for Mobile communications (GSM)".
`
`ETSI ES 200 800: "Digital Video Broadcasting (DVB); DVB interaction channel for Cable TV
`distribution systems (CATV)".
`
`ITU-R Recommendation SNG.770-1: "Uniform operational procedures for satellite news gathering
`(SNG)".
`
`ETSI
`
`

`

`[12]
`
`ETSI ETS 300 802: "Digital Video Broadcasting (DVB); Network-independent protocols for DVB
`interactive services".
`
`9
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`3
`
`Symbols and abbreviations
`
`3.1
`
`Symbols
`
`For the purposes of the present document, the following symbols apply:
`
`α
`γ
`c
`C/N
`C/N+I
`d
`
`−
`
`k
`
`n
`bch
`
`d(x)
`
`DFL
`dmin
`Eb/N0
`
`Es/N0
`
`,
`
`d
`
`−
`1
`
`bch
`
`n
`bch
`
`−
`
`k
`
`bch
`
`−
`
`2
`
`,...,
`
`
`
` , dd
`1
`
`0
`
`Roll-off factor
`Ratio between constellation radii for 16APSK and 32APSK
`codeword
`Carrier-to-noise power ratio (N measured in a bandwidth equal to symbol rate)
`Carrier-to-(Noise+Interference) ratio
`
`bch
`
` BCH code redundancy bits
`BCH code remainder of the division between the generator polynomial and
`−
`
`nx bch k
`m(x)
`Data Field Length
`LDPC code minimum distance
`Ratio between the energy per information bit and single sided noise power
`
`spectral density
`Ratio between the energy per transmitted symbol and single sided noise power
`
`fN
`f0
`G
`g(x)
`g1(x), g2(x), …, g12(x)
`i
`i
`
`,
`
`i
`1
`
`,...,
`
`ki
`
`0
`
`
`
`−
`1
`
`ldpc
`
`H(f)
`H(n-k)xn
`I, Q
`Kbch
`Nbch
`kldpc
`nldpc
`η
`ηc
`ηMOD
`ηtot
`m
`m(x)
`m
`
`k
`
`bch
`
`−
`1
`
`,
`
`m
`
`k
`
`bch
`
`−
`
`2
`
`,...,
`
`,
`mm
`1
`
`0
`
`
`
`M
` , pp
`0
`1
`
`
`
`,...
`
`np
`− ldpcldpc k
`
`
`
`
`
`−
`1
`
`P
`q
`θ
`rm
`Rs
`
`spectral density
`Nyquist frequency
`
`Carrier frequency
`
`PLS code generator matrix
`code generator polynomial
`polynomials to obtain BCH code generator polynomial
`
`LDPC code information block
`
`LDPC code information bits
`
`RC filters frequency transfer function
`LDPC code parity check matrix
`
`In-phase, Quadrature phase components of the modulated signal
`number of bits of BCH uncoded Block
`
`number of bits of BCH coded Block
`
`number of bits of LDPC uncoded Block
`
`number of bits of LDPC coded Block
`
`PLFRAMING efficiency
`code efficiency
`
`number of transmitted bits per constellation symbol
`
`System spectral efficiency
`
`BCH code information word
`BCH code message polynomial
`
`BCH code information bits
`
`number of modulated symbols in SLOT
`
`LDPC code parity bits
`
`number of pilot symbols in a pilot block
`code rate dependant constant for LDPC codes
`deviation angle in hierarchical constellations
`In-band ripple (dB)
`
`Symbol rate corresponding to the bilateral Nyquist bandwidth of the
`modulated signal
`
`ETSI
`
`

`

`10
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`Ru
`S
`Ts
`
`Useful bit rate at the DVB-S2 system input
`
`Number of Slots in a XFECFRAME
`Symbol period
`
`3.2
`
`Abbreviations
`
`For the purposes of the present document, the following abbreviations apply:
`
`16APSK
`32APSK
`8PSK
`ACM
`ASI
`AWGN
`BB
`BC
`
`16-ary Amplitude and Phase Shift Keying
`32-ary Amplitude and Phase Shift Keying
`8-ary Phase Shift Keying
`Adaptive Coding and Modulation
`Asynchronous Serial Interface
`Additive White Gaussian Noise
`BaseBand
`Backwards-Compatible
`
`NOTE: Referred to the system allowing partial stream reception by DVB-S receivers.
`
`BCH
`BER
`BS
`BS
`BSS
`BW
`CBR
`CCM
`CNI
`CRC
`D
`DD
`DEMUX
`DF
`DNP
`DSNG
`DTH
`DTT
`DVB
`DVB-S
`DVB-S2
`EBU
`EN
`FDM
`FEC
`FIFO
`FSS
`GF
`GS
`HDTV
`HEX
`HP
`IBO
`IF
`IMUX
`IRD
`IS
`ISCR
`ISI
`ISSY
`ISSYI
`
`Bose-Chaudhuri-Hocquenghem multiple error correction binary block code
`Bit Error Ratio
`Bandwidth of the frequency Slot allocated to a service
`
`Broadcast Service
`Broadcast Satellite Service
`BandWidth (at -3 dB) of the transponder
`Constant Bit Rate
`Constant Coding and Modulation
`Carrier to Noise plus Interference ratio
`Cyclic Redundancy Check
`Decimal notation
`Decision Directed
`DEMUltipleXer
`Data Field
`Deleted Null Packets
`Digital Satellite News Gathering
`Direct To Home
`Digital Terrestrial Television
`Digital Video Broadcasting project
`DVB System for satellite broadcasting specified in EN 300 421
`DVB-S2 System as specified in the present document.
`European Broadcasting Union
`European Norm
`Frequency Division Multiplex
`Forward Error Correction
`First In First Out
`Fixed Satellite Service
`Galois Field
`Generic Stream
`High Definition TeleVision
`HEXadecimal notation
`
`High Priority
`Input Back Off
`Intermediate Frequency
`Input MUltipleXer - filter
`Integrated Receiver Decoder
`Interactive Services
`Input Stream Time Reference
`Input Stream Identifier
`Input Stream SYnchronizer
`Input Stream SYnchronizer Indicator
`
`ETSI
`
`

`

`11
`
`ETSI EN 302 307 V1.1.2 (2006-06)
`
`ITU
`LDPC
`LNB
`LP
`LSB
`MIS
`MPE
`MPEG
`MSB
`
`International Telecommunications Union
`Low Density Parity Check (codes)
`Low Noise Block
`Low Priority
`Least Significant