SIST EN 302 583 V1.1.1:2008
Digital Video Broadcasting (DVB) - Framing Structure, channel coding and modulation for Satellite Services to Handheld devices (SH) below 3 GHz
Digital Video Broadcasting (DVB) - Framing Structure, channel coding and modulation for Satellite Services to Handheld devices (SH) below 3 GHz
Waveform definition for satellite to handheld services systems using hybrid satellite and terrestrial transmission below 3 GHz. This is designed as an extension to DVB-H and to interface with existing DVB-IPDC specifications.
The present document specifies a transmission system for hybrid satellite and terrestrial digital television broadcasting to mobile terminals. It is derived from the DVB-T [1] and DVB-H [6] system specification, respectively designed for digital television terrestrial broadcasting towards fixed and mobile terminals and DVB-S2, [2] designed for digital satellite broadcasting towards fixed terminals. The purpose of the DVB-SH standard is to provide an efficient transmission system using frequencies below 3 GHz suitable for Satellite Services to Handheld devices, in terms of reception threshold and resistance to mobile satellite channel impairments.
The system relies on a hybrid satellite/terrestrial infrastructure. The signals are broadcast to mobile terminals on two paths:
• A direct path from a broadcast station to the terminals via the satellite.
• An indirect path from a broadcast station to terminals via terrestrial repeaters that form the Complementary Ground Component (CGC) to the satellite. The CGC can be fed through satellite and/or terrestrial distribution networks.
The system includes two transmission modes:
• An OFDM mode based on DVB-T standard [1] with enhancements. This mode can be used on both the direct and indirect paths; the two signals are combined in the receiver to strengthen the reception in a SFN configuration.
• A TDM mode partly derived from DVB-S2 standard [2], in order to optimize transmission through satellite towards mobile terminals. This mode is used on the direct path only. The system supports code diversity recombination between satellite TDM and terrestrial OFDM modes so as to increase the robustness of the transmission in relevant areas (mainly suburban).
The present document specifies the digital signal format and the digital signal modulation and coding in order to allow compatibility between pieces of equipment developed by different manufacturers. Signal processing at the modulator side is described in details, while processing at receiver side is left open to a particular implementation (as far as it complies with the present document).
Digitalna videoradiodifuzija (DVB) - Struktura okvirov, kodiranje kanalov in modulacija za satelitske storitve, namenjene ročnim napravam (SH), ki delujejo v območju pod 3 GHz
General Information
Buy Standard
Standards Content (Sample)
ETSI EN 302 583 V1.1.1 (2008-03)
European Standard (Telecommunications series)
Digital Video Broadcasting (DVB);
Framing Structure, channel coding and modulation for
Satellite Services to Handheld devices (SH) below 3 GHz
European Broadcasting Union Union Européenne de Radio-Télévision
EBU·UER
---------------------- Page: 1 ----------------------
2 ETSI EN 302 583 V1.1.1 (2008-03)
Reference
DEN/JTC-DVB-207
Keywords
broadcast, DVB
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
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).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
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 2008.
© European Broadcasting Union 2008.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 302 583 V1.1.1 (2008-03)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.7
2.2 Informative references.7
3 Definitions, symbols and abbreviations .7
3.1 Definitions.7
3.2 Symbols.8
3.3 Abbreviations.8
4 Transmission system description.9
4.1 System definition.9
4.2 System architecture.9
5 Subsystems specification.10
5.1 Mode adaptation.10
5.1.1 CRC-16 encoder .11
5.1.2 Encapsulation Frame Header insertion .12
5.2 Stream adaptation.13
5.2.1 Padding.13
5.2.2 EScrambling.13
5.3 FEC encoding and channel interleaving.14
5.3.1 Constituent codes of the turbo encoder and puncturing patterns .14
5.3.2 Turbo code termination.16
5.3.3 Turbo interleavers.17
5.4 Channel interleaver and rate adaptation .19
5.4.1 Overview.19
5.4.2 Bit-wise interleaving and rate adaptation.19
5.4.3 Time interleaver.21
5.5 Frame structure.22
5.5.1 Interface with FEC encoding .22
5.5.2 SH Frame structure.22
5.5.2.1 Overview.22
5.5.2.2 Elementary parts description.25
5.5.2.3 OFDM mode.26
5.5.2.4 TDM mode.28
5.5.3 Interface with modulation.28
5.6 Single carrier (TDM).28
5.6.1 Interface to SH frame.28
5.6.2 Bit mapping into constellation.29
5.6.2.1 Bit mapping into QPSK constellation .29
5.6.2.2 Bit mapping into 8PSK constellation .30
5.6.2.3 Bit mapping into 16APSK constellation .30
5.6.3 TDM symbol rate selection.31
5.6.4 TDM framing.31
5.6.4.1 PL Slot definition .31
5.6.4.2 Pilot insertion.32
5.6.4.3 Physical layer scrambling .33
5.6.5 Baseband shaping and quadrature modulation.34
5.7 Multi carrier (OFDM) .35
5.7.1 Interface to SH frame.35
5.7.1.1 CU mapping .35
5.7.1.2 Bit demultiplexing.35
5.7.2 Symbol interleaver.36
ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 302 583 V1.1.1 (2008-03)
5.7.3 Bit mapping into constellation.39
5.7.4 OFDM framing.41
5.7.4.1 OFDM frame structure.41
5.7.4.2 Reference signals.45
5.7.4.2.1 Functions and derivation .45
5.7.4.2.2 Definition of reference sequence.45
5.7.4.2.3 Location of scattered pilot cells.46
5.7.4.2.4 Location of continual pilot carriers.46
5.7.4.2.5 Amplitudes of all reference information.48
5.7.4.3 Transmission Parameter Signalling (TPS) .48
5.7.4.3.1 Scope of the TPS .49
5.7.4.3.2 TPS transmission format .49
5.7.4.3.3 TPS modulation.54
5.7.5 Baseband shaping and quadrature modulation.55
Annex A (normative): SH frame Initialization Packet (SHIP) .56
A.1 Introduction.56
A.2 SHIP header.56
A.3 Mandatory parameters.57
A.4 Optional SHIP section parameters .58
A.4.1 Transmitter time offset function.59
A.4.2 Transmitter frequency offset function .59
A.4.3 Transmitter power function .60
A.4.4 Private data function.60
A.4.5 Cell id function.60
A.4.6 Enable function.61
A.4.7 Bandwidth function .61
A.4.8 Service localization function.61
A.4.9 Service synchronization function.62
A.4.10 TDM function.63
A.4.11 Group membership function.64
A.5 CRC decoder model .65
Annex B (informative): Bibliography.67
History .68
ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 302 583 V1.1.1 (2008-03)
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 the
Ad Hoc Group on DVB-SH 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 adoption of this EN: 14 March 2008
Date of latest announcement of this EN (doa): 30 June 2008
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2008
Date of withdrawal of any conflicting National Standard (dow): 31 December 2008
ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 302 583 V1.1.1 (2008-03)
1 Scope
The present document specifies a transmission system for hybrid satellite and terrestrial digital television broadcasting
to mobile terminals. It is derived from the DVB-T [1] and DVB-H [6] system specification, respectively designed for
digital television terrestrial broadcasting towards fixed and mobile terminals and DVB-S2, [2] designed for digital
satellite broadcasting towards fixed terminals. The purpose of the DVB-SH standard is to provide an efficient
transmission system using frequencies below 3 GHz suitable for Satellite Services to Handheld devices, in terms of
reception threshold and resistance to mobile satellite channel impairments.
The system relies on a hybrid satellite/terrestrial infrastructure. The signals are broadcast to mobile terminals on two
paths:
• A direct path from a broadcast station to the terminals via the satellite.
• An indirect path from a broadcast station to terminals via terrestrial repeaters that form the Complementary
Ground Component (CGC) to the satellite. The CGC can be fed through satellite and/or terrestrial distribution
networks.
The system includes two transmission modes:
• An OFDM mode based on DVB-T standard [1] with enhancements. This mode can be used on both the direct
and indirect paths; the two signals are combined in the receiver to strengthen the reception in a SFN
configuration.
• A TDM mode partly derived from DVB-S2 standard [2], in order to optimize transmission through satellite
towards mobile terminals. This mode is used on the direct path only. The system supports code diversity
recombination between satellite TDM and terrestrial OFDM modes so as to increase the robustness of the
transmission in relevant areas (mainly suburban).
The present document specifies the digital signal format and the digital signal modulation and coding in order to allow
compatibility between pieces of equipment developed by different manufacturers. Signal processing at the modulator
side is described in details, while processing at receiver side is left open to a particular implementation (as far as it
complies with the present document).
2 References
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.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
ETSI
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7 ETSI EN 302 583 V1.1.1 (2008-03)
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI EN 300 744: "Digital Video Broadcasting (DVB); Framing structure, channel coding and
modulation for digital terrestrial television".
[2] ETSI EN 302 307: "Digital Video Broadcasting (DVB); Second generation framing structure,
channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering
and other broadband satellite applications".
[3] 3GPP2 C.S0002-D, September 2005: "3GPP2: Physical Layer Standard for cdma2000 Spread
Spectrum Systems, Revision D".
NOTE: See http://www.3gpp2.org/Public_html/specs/C.S0002-D_v2.0_051006.pdf.
[4] ISO/IEC 13818-1: "Information technology - Generic coding of moving pictures and associated
audio information: Systems".
[5] ETSI EN 301 192: "Digital Video Broadcasting (DVB); DVB specification for data broadcasting".
[6] ETSI EN 302 304: "Digital Video Broadcasting (DVB); Transmission System for Handheld
Terminals (DVB-H)".
[7] ETSI TS 102 606: "Digital Video Broadcasting (DVB); Generic Stream Encapsulation (GSE)
Protocol".
[8] Void.
[9] ETSI TS 102 585: "Digital Video Broadcasting (DVB); System Specifications for Satellite
services to Handheld devices (SH) below 3 GHz".
[10] ETSI EN 300 468: "Digital Video Broadcasting (DVB); Specification for Service Information (SI)
in DVB systems".
2.2 Informative references
Not applicable.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
class 1 receiver: support short physical layer protection in the order of one DVB-H burst
NOTE: As defined in [9].
class 2 receivers: support long physical layer protection in the order of several DVB-H bursts
NOTE: As defined in [9].
code combining: transmission and decoding technique consisting in transmitting complementary or partially
complementary components of a mother code through different channels (in SH-B systems, using satellite TDM and
terrestrial OFDM) and recombining the punctured parts into a single coded FEC block before decoding
ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 302 583 V1.1.1 (2008-03)
SH-A architecture: DVB-SH system using OFDM on the satellite path
NOTE: As defined in [9].
SH-B architecture: DVB-SH system using TDM on the satellite path
NOTE: As defined in [9].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
L Turbo Code input block length in bits
TC-input
q' Symbol Number
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BCH Bose, Ray-Chaudhuri, Hocquenghem
CGC Complementary Ground Component
CR Code Rate
CRC Cyclic Redundancy Check
CU Capacity Unit
NOTE: Defined as a block of 2 016 bits.
D Decimal notation
DFL DATAFIELD Length
DVB Digital Video Broadcasting project
DVB-H Digital Video Broadcasting for Handheld terminals
DVB-S Digital Video Broadcasting for Satellite services
DVB-S2 DVB-S, second generation
DVB-T Digital Video Broadcasting for Terrestrial services
EBU European Broadcasting Union
EFRAME Encapsulation Frame
EHEADER Encapsulation Frame Header
EN European Norm
EXOR Exclusive OR function
FEC Forward Error Correction
FFT Fast Fourier Transform
FIFO First In First Out
GF Galois Field
ISI Input Stream Identifier
IU Interleaver Unit
NOTE: Defined as a set of 126 bits.
LSB Least Significant Bit
MIP Mega-frame Initialization Packet
MPE Multi-Protocol Encapsulation
MPEG Moving Pictures Experts Group
MPEG-TS MPEG-Transport Stream
MSB Most Significant Bit
N Number of bits at the output of the bit interleaver
BIL
NCW Number of Coded words
Number of bits of the FEC (turbo) coded block
NTCB
OFDM Orthogonal Frequency Division Multiplexing
PER (MPEG TS) Packet Error Rate
PID Packet IDentifier
PL Physical Layer
ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 302 583 V1.1.1 (2008-03)
PRBS Pseudo Random Binary Sequence
PSK Phase Shift Keying
QAM Quadrature Amplitude Modulation
QPSK Quaternary Phase Shift Keying
RF Radio Frequency
RFU Reserved for Future Use
RSC Recursive Systematic Convolutional Coder
SF Signalling Field (inserted in TDM mode)
SFN Single Frequency Network
SH Satellite to Handheld
SHIP SH frame Initialization Packet
SHL SH frame Length (variable in TDM mode)
SL Service Layer
SOF Start Of Frame (inserted in TDM mode)
SYNC User packet SYNChronization byte
EXAMPLE: 0x47 for MPEG packets.
TDM Time Division Multiplex
TS Transport Stream
UP User Packet
UPL User Packet Length
4 Transmission system description
4.1 System definition
The system is mainly designed to transport mobile TV services. It may also support a wide range of mobile multimedia
services, e.g. audio and data broadcast as well as file download services.
The system performs the adaptation and transmission of one or two (in case of hierarchical mode) baseband signals to
both satellite and terrestrial channel characteristics. Baseband signals at system input are, by default, MPEG Transport
Streams (MPEG-TS, see [4]) and are composed of bursts compliant with DVB-H time slicing [5]. Typically a burst
transports a given service (or set of services), e.g. a TV channel. The size of each burst may vary with time in order to
support Variable burst Bit Rate.
The present document applies to the MPEG-TS format but the support of a Generic Stream is not precluded
(see clause 5.1).
4.2 System architecture
Figure 4.1 describes the transmission system. It includes two modulation possibilities for the satellite path: an OFDM
mode based on DVB-T standard and a TDM mode, partly derived from DVB-S2 structure.
The following process, composed of a part common to both modes, and parts dedicated to each mode, shall be applied
to the input stream(s):
Both modes:
• Mode adaptation: CRC-16 and insertion of the Encapsulation Frame Header.
• Stream adaptation: padding and scrambling of the Encapsulation Frame.
• Forward Error Correction (FEC) encoding using 3GPP2 [3] turbo code.
• Bit-wise interleaving applying on a FEC block. The latter is meanwhile shortened to comply with the
modulation frame structure of OFDM and TDM.
• Convolutional time interleaving and framing.
ETSI
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10 ETSI EN 302 583 V1.1.1 (2008-03)
TDM mode:
• Bit mapping to the constellation.
• TDM physical layer framing.
• Pilots insertion and scrambling.
• Pulse shaping and quadrature modulation.
OFDM mode:
• Symbol interleaver.
• Bit mapping to the constellation.
• OFDM framing with pilots and TPS insertion.
Framing
Hierarchical MPEG-TS Mode Stream FEC
&
Framing
(OFDM only) Adaptation Adaptation Coding
Mode Stream FEC Interleaving
&
MPEG - TS Adaptation Adaptation Coding Framing
Mode Stream FEC Interleaving
&
With SFN
Adaptation Adaptation Coding
Interleaving
synchronisation
Common
Bit Demux
Symbol Frame
Mapper OFDM GI Insertion RF
interleaver Ada
...
Final draft ETSI EN 302 583 V1.1.0 (2008-01)
European Standard (Telecommunications series)
Digital Video Broadcasting (DVB);
Framing Structure, channel coding and modulation for
Satellite Services to Handheld devices (SH) below 3 GHz
European Broadcasting Union Union Européenne de Radio-Télévision
EBU·UER
---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
Reference
DEN/JTC-DVB-207
Keywords
broadcast, DVB
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
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).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
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 2008.
© European Broadcasting Union 2008.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.7
3 Definitions, symbols and abbreviations .7
3.1 Definitions.7
3.2 Symbols.8
3.3 Abbreviations.8
4 Transmission system description.9
4.1 System definition.9
4.2 System architecture.9
5 Subsystems specification.10
5.1 Mode adaptation.10
5.1.1 CRC-16 encoder .11
5.1.2 Encapsulation Frame Header insertion .11
5.2 Stream adaptation.13
5.2.1 Padding.13
5.2.2 EScrambling.13
5.3 FEC encoding and channel interleaving.14
5.3.1 Constituent codes of the turbo encoder and puncturing patterns .14
5.3.2 Turbo code termination.16
5.3.3 Turbo interleavers.17
5.4 Channel interleaver and rate adaptation .19
5.4.1 Overview.19
5.4.2 Bit-wise interleaving and rate adaptation.19
5.4.3 Time interleaver.21
5.5 Frame structure.22
5.5.1 Interface with FEC encoding .22
5.5.2 SH Frame structure.22
5.5.2.1 Overview.22
5.5.2.2 Elementary parts description.25
5.5.2.3 OFDM mode.26
5.5.2.4 TDM mode.28
5.5.3 Interface with modulation.28
5.6 Single carrier (TDM).28
5.6.1 Interface to SH frame.28
5.6.2 Bit mapping into constellation.29
5.6.2.1 Bit mapping into QPSK constellation .29
5.6.2.2 Bit mapping into 8PSK constellation .30
5.6.2.3 Bit mapping into 16APSK constellation .30
5.6.3 TDM symbol rate selection.31
5.6.4 TDM framing.31
5.6.4.1 PL Slot definition .31
5.6.4.2 Pilot insertion.32
5.6.4.3 Physical layer scrambling .33
5.6.5 Baseband shaping and quadrature modulation.34
5.7 Multi carrier (OFDM) .35
5.7.1 Interface to SH frame.35
5.7.1.1 CU mapping .35
5.7.1.2 Bit demultiplexing.35
5.7.2 Symbol interleaver.36
5.7.3 Bit mapping into constellation.39
ETSI
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4 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
5.7.4 OFDM framing.41
5.7.4.1 OFDM frame structure.41
5.7.4.2 Reference signals.45
5.7.4.2.1 Functions and derivation .45
5.7.4.2.2 Definition of reference sequence.45
5.7.4.2.3 Location of scattered pilot cells.46
5.7.4.2.4 Location of continual pilot carriers.46
5.7.4.2.5 Amplitudes of all reference information.48
5.7.4.3 Transmission Parameter Signalling (TPS) .48
5.7.4.3.1 Scope of the TPS .49
5.7.4.3.2 TPS transmission format .49
5.7.4.3.3 TPS modulation.54
5.7.5 Baseband shaping and quadrature modulation.55
Annex A (normative): SH frame Initialization Packet (SHIP) .56
A.1 Introduction.56
A.2 SHIP header.56
A.3 Mandatory parameters.57
A.4 Optional SHIP section parameters .58
A.4.1 Transmitter time offset function.59
A.4.2 Transmitter frequency offset function .59
A.4.3 Transmitter power function .60
A.4.4 Private data function.60
A.4.5 Cell id function.60
A.4.6 Enable function.61
A.4.7 Bandwidth function .61
A.4.8 Service localization function.61
A.4.9 Service synchronization function.62
A.4.10 TDM function.63
A.4.11 Group membership function.64
A.5 CRC decoder model .65
History .67
ETSI
---------------------- Page: 4 ----------------------
5 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
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), and is now submitted for the Vote
phase of the ETSI standards Two-step Approval Procedure.
The work of the JTC was based on the studies carried out by the European DVB Project under the auspices of the
Ad Hoc Group on DVB-SH 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.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
ETSI
---------------------- Page: 5 ----------------------
6 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
1 Scope
The present document specifies a transmission system for hybrid satellite and terrestrial digital television broadcasting
to mobile terminals. It is derived from the DVB-T [1] and DVB-H [6] system specification, respectively designed for
digital television terrestrial broadcasting towards fixed and mobile terminals and DVB-S2, [2] designed for digital
satellite broadcasting towards fixed terminals. The purpose of the DVB-SH standard is to provide an efficient
transmission system using frequencies below 3 GHz suitable for Satellite Services to Handheld devices, in terms of
reception threshold and resistance to mobile satellite channel impairments.
The system relies on a hybrid satellite/terrestrial infrastructure. The signals are broadcast to mobile terminals on two
paths:
• A direct path from a broadcast station to the terminals via the satellite.
• An indirect path from a broadcast station to terminals via terrestrial repeaters that form the Complementary
Ground Component (CGC) to the satellite. The CGC can be fed through satellite and/or terrestrial distribution
networks.
The system includes two transmission modes:
• An OFDM mode based on DVB-T standard [1] with enhancements. This mode can be used on both the direct
and indirect paths; the two signals are combined in the receiver to strengthen the reception in a SFN
configuration.
• A TDM mode partly derived from DVB-S2 standard [2], in order to optimize transmission through satellite
towards mobile terminals. This mode is used on the direct path only. The system supports code diversity
recombination between satellite TDM and terrestrial OFDM modes so as to increase the robustness of the
transmission in relevant areas (mainly suburban).
The present document specifies the digital signal format and the digital signal modulation and coding in order to allow
compatibility between pieces of equipment developed by different manufacturers. Signal processing at the modulator
side is described in details, while processing at receiver side is left open to a particular implementation (as far as it
complies with the present document).
2 References
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.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the purposes
of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
ETSI
---------------------- Page: 6 ----------------------
7 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI EN 300 744: "Digital Video Broadcasting (DVB); Framing structure, channel coding and
modulation for digital terrestrial television".
[2] ETSI EN 302 307: "Digital Video Broadcasting (DVB); Second generation framing structure,
channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering
and other broadband satellite applications".
[3] 3GPP2 C.S0002-D, September 2005: "3GPP2: Physical Layer Standard for cdma2000 Spread
Spectrum Systems, Revision D".
NOTE: See http://www.3gpp2.org/Public_html/specs/C.S0002-D_v2.0_051006.pdf.
[4] ISO/IEC 13818-1: "Information technology - Generic coding of moving pictures and associated
audio information: Systems".
[5] ETSI EN 301 192: "Digital Video Broadcasting (DVB); DVB specification for data broadcasting".
[6] ETSI EN 302 304: "Digital Video Broadcasting (DVB); Transmission System for Handheld
Terminals (DVB-H)".
[7] ETSI TS 102 606: "Digital Video Broadcasting (DVB); Generic Stream Encapsulation (GSE)
Protocol".
[8] ETSI TS 101 191: "Digital Video Broadcasting (DVB); DVB mega-frame for Single Frequency
Network (SFN) synchronization".
[9] ETSI TS 102 585: "Digital Video Broadcasting (DVB); System Specifications for Satellite
services to Handheld devices (SH) below 3 GHz".
[10] ETSI EN 300 468: "Digital Video Broadcasting (DVB); Specification for Service Information (SI)
in DVB systems".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
class 1 receiver: support short physical layer protection in the order of one DVB-H burst
NOTE: As defined in [9].
class 2 receivers: support long physical layer protection in the order of several DVB-H bursts
NOTE: As defined in [9].
code combining: transmission and decoding technique consisting in transmitting complementary or partially
complementary components of a mother code through different channels (in SH-B systems, using satellite TDM and
terrestrial OFDM) and recombining the punctured parts into a single coded FEC block before decoding
SH-A architecture: DVB-SH system using OFDM on the satellite path
NOTE: As defined in [9].
SH-B architecture: DVB-SH system using TDM on the satellite path
NOTE: As defined in [9].
ETSI
---------------------- Page: 7 ----------------------
8 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
L Turbo Code input block length in bits
TC-input
q' Symbol Number
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BCH Bose, Ray-Chaudhuri, Hocquenghem
CGC Complementary Ground Component
CR Code Rate
CRC Cyclic Redundancy Check
CU Capacity Unit
NOTE: Defined as a block of 2 016 bits.
D Decimal notation
DFL DATAFIELD Length
DVB Digital Video Broadcasting project
DVB-H Digital Video Broadcasting for Handheld terminals
DVB-S Digital Video Broadcasting for Satellite services
DVB-S2 DVB-S, second generation
DVB-T Digital Video Broadcasting for Terrestrial services
EBU European Broadcasting Union
EFRAME Encapsulation Frame
EHEADER Encapsulation Frame Header
EN European Norm
EXOR Exclusive OR function
FEC Forward Error Correction
FFT Fast Fourier Transform
FIFO First In First Out
GF Galois Field
ISI Input Stream Identifier
IU Interleaver Unit
NOTE: Defined as a set of 126 bits.
LSB Least Significant Bit
MIP Mega-frame Initialization Packet
MPE Multi-Protocol Encapsulation
MPEG Moving Pictures Experts Group
MPEG-TS MPEG-Transport Stream
MSB Most Significant Bit
N Number of bits at the output of the bit interleaver
BIL
NCW Number of Coded words
Number of bits of the FEC (turbo) coded block
NTCB
OFDM Orthogonal Frequency Division Multiplexing
PER (MPEG TS) Packet Error Rate
PID Packet IDentifier
PL Physical Layer
PRBS Pseudo Random Binary Sequence
PSK Phase Shift Keying
QAM Quadrature Amplitude Modulation
QPSK Quaternary Phase Shift Keying
RF Radio Frequency
RFU Reserved for Future Use
RSC Recursive Systematic Convolutional Coder
SF Signalling Field (inserted in TDM mode)
ETSI
---------------------- Page: 8 ----------------------
9 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
SFN Single Frequency Network
SH Satellite to Handheld
SHIP SH frame Initialization Packet
SHL SH frame Length (variable in TDM mode)
SL Service Layer
SOF Start Of Frame (inserted in TDM mode)
SYNC User packet SYNChronization byte
EXAMPLE: 0x47 for MPEG packets.
TDM Time Division Multiplex
TS Transport Stream
UP User Packet
UPL User Packet Length
4 Transmission system description
4.1 System definition
The system is mainly designed to transport mobile TV services. It may also support a wide range of mobile multimedia
services, e.g. audio and data broadcast as well as file download services.
The system performs the adaptation and transmission of one or two (in case of hierarchical mode) baseband signals to
both satellite and terrestrial channel characteristics. Baseband signals at system input are, by default, MPEG Transport
Streams (MPEG-TS, see [4]) and are composed of bursts compliant with DVB-H time slicing [5]. Typically a burst
transports a given service (or set of services), e.g. a TV channel. The size of each burst may vary with time in order to
support Variable burst Bit Rate.
The present document applies to the MPEG-TS format but the support of a Generic Stream is not precluded
(see clause 5.1).
4.2 System architecture
Figure 4.1 describes the transmission system. It includes two modulation possibilities for the satellite path: an OFDM
mode based on DVB-T standard and a TDM mode, partly derived from DVB-S2 structure.
The following process, composed of a part common to both modes, and parts dedicated to each mode, shall be applied
to the input stream(s):
Both modes:
• Mode adaptation: CRC-16 and insertion of the Encapsulation Frame Header.
• Stream adaptation: padding and scrambling of the Encapsulation Frame.
• Forward Error Correction (FEC) encoding using 3GPP2 [3] turbo code.
• Bit-wise interleaving applying on a FEC block. The latter is meanwhile shortened to comply with the
modulation frame structure of OFDM and TDM.
• Convolutional time interleaving and framing.
TDM mode:
• Bit mapping to the constellation.
• TDM physical layer framing.
• Pilots insertion and scrambling.
• Pulse shaping and quadrature modulation.
ETSI
---------------------- Page: 9 ----------------------
10 Final draft ETSI EN 302 583 V1.1.0 (2008-01)
OFDM mode:
• Symbol interleaver.
• Bit mapping to the constellation.
• OFDM framing with pilots and TPS insertion.
Framing
Hierarchical MPEG-TS Mode Stream FEC
&
(OFDM only) Adaptation Adaptation Coding Framing
Mode Stream FEC
Interleaving
&
Framing
MPEG - TS Adaptation Adaptation Coding
Mode Stream FEC Interleaving
&
With SFN
Adaptation Adaptation Coding
Interleaving
synchronisation
Common
Bit Demux
Symbol Frame
Mapper OFDM GI Insertion RF
interleaver Adaptation
Bit Demux
Pilots
...
SLOVENSKI STANDARD
SIST EN 302 583 V1.1.1:2008
01-september-2008
'LJLWDOQDYLGHRUDGLRGLIX]LMD '9% 6WUXNWXUDRNYLURYNRGLUDQMHNDQDORYLQ
PRGXODFLMD]DVDWHOLWVNHVWRULWYHQDPHQMHQHURþQLPQDSUDYDP 6+ NLGHOXMHMRY
REPRþMXSRG*+]
Digital Video Broadcasting (DVB) - Framing Structure, channel coding and modulation
for Satellite Services to Handheld devices (SH) below 3 GHz
Ta slovenski standard je istoveten z: EN 302 583 Version 1.1.1
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
SIST EN 302 583 V1.1.1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 302 583 V1.1.1:2008
---------------------- Page: 2 ----------------------
SIST EN 302 583 V1.1.1:2008
ETSI EN 302 583 V1.1.1 (2008-03)
European Standard (Telecommunications series)
Digital Video Broadcasting (DVB);
Framing Structure, channel coding and modulation for
Satellite Services to Handheld devices (SH) below 3 GHz
European Broadcasting Union Union Européenne de Radio-Télévision
EBU·UER
---------------------- Page: 3 ----------------------
SIST EN 302 583 V1.1.1:2008
2 ETSI EN 302 583 V1.1.1 (2008-03)
Reference
DEN/JTC-DVB-207
Keywords
broadcast, DVB
ETSI
650 Route des Lucioles
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Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
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).
In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive
within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
http://portal.etsi.org/chaircor/ETSI_support.asp
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 2008.
© European Broadcasting Union 2008.
All rights reserved.
TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
for the benefit of its Members.
TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 302 583 V1.1.1:2008
3 ETSI EN 302 583 V1.1.1 (2008-03)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
2.1 Normative references.7
2.2 Informative references.7
3 Definitions, symbols and abbreviations .7
3.1 Definitions.7
3.2 Symbols.8
3.3 Abbreviations.8
4 Transmission system description.9
4.1 System definition.9
4.2 System architecture.9
5 Subsystems specification.10
5.1 Mode adaptation.10
5.1.1 CRC-16 encoder .11
5.1.2 Encapsulation Frame Header insertion .12
5.2 Stream adaptation.13
5.2.1 Padding.13
5.2.2 EScrambling.13
5.3 FEC encoding and channel interleaving.14
5.3.1 Constituent codes of the turbo encoder and puncturing patterns .14
5.3.2 Turbo code termination.16
5.3.3 Turbo interleavers.17
5.4 Channel interleaver and rate adaptation .19
5.4.1 Overview.19
5.4.2 Bit-wise interleaving and rate adaptation.19
5.4.3 Time interleaver.21
5.5 Frame structure.22
5.5.1 Interface with FEC encoding .22
5.5.2 SH Frame structure.22
5.5.2.1 Overview.22
5.5.2.2 Elementary parts description.25
5.5.2.3 OFDM mode.26
5.5.2.4 TDM mode.28
5.5.3 Interface with modulation.28
5.6 Single carrier (TDM).28
5.6.1 Interface to SH frame.28
5.6.2 Bit mapping into constellation.29
5.6.2.1 Bit mapping into QPSK constellation .29
5.6.2.2 Bit mapping into 8PSK constellation .30
5.6.2.3 Bit mapping into 16APSK constellation .30
5.6.3 TDM symbol rate selection.31
5.6.4 TDM framing.31
5.6.4.1 PL Slot definition .31
5.6.4.2 Pilot insertion.32
5.6.4.3 Physical layer scrambling .33
5.6.5 Baseband shaping and quadrature modulation.34
5.7 Multi carrier (OFDM) .35
5.7.1 Interface to SH frame.35
5.7.1.1 CU mapping .35
5.7.1.2 Bit demultiplexing.35
5.7.2 Symbol interleaver.36
ETSI
---------------------- Page: 5 ----------------------
SIST EN 302 583 V1.1.1:2008
4 ETSI EN 302 583 V1.1.1 (2008-03)
5.7.3 Bit mapping into constellation.39
5.7.4 OFDM framing.41
5.7.4.1 OFDM frame structure.41
5.7.4.2 Reference signals.45
5.7.4.2.1 Functions and derivation .45
5.7.4.2.2 Definition of reference sequence.45
5.7.4.2.3 Location of scattered pilot cells.46
5.7.4.2.4 Location of continual pilot carriers.46
5.7.4.2.5 Amplitudes of all reference information.48
5.7.4.3 Transmission Parameter Signalling (TPS) .48
5.7.4.3.1 Scope of the TPS .49
5.7.4.3.2 TPS transmission format .49
5.7.4.3.3 TPS modulation.54
5.7.5 Baseband shaping and quadrature modulation.55
Annex A (normative): SH frame Initialization Packet (SHIP) .56
A.1 Introduction.56
A.2 SHIP header.56
A.3 Mandatory parameters.57
A.4 Optional SHIP section parameters .58
A.4.1 Transmitter time offset function.59
A.4.2 Transmitter frequency offset function .59
A.4.3 Transmitter power function .60
A.4.4 Private data function.60
A.4.5 Cell id function.60
A.4.6 Enable function.61
A.4.7 Bandwidth function .61
A.4.8 Service localization function.61
A.4.9 Service synchronization function.62
A.4.10 TDM function.63
A.4.11 Group membership function.64
A.5 CRC decoder model .65
Annex B (informative): Bibliography.67
History .68
ETSI
---------------------- Page: 6 ----------------------
SIST EN 302 583 V1.1.1:2008
5 ETSI EN 302 583 V1.1.1 (2008-03)
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 the
Ad Hoc Group on DVB-SH 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 adoption of this EN: 14 March 2008
Date of latest announcement of this EN (doa): 30 June 2008
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2008
Date of withdrawal of any conflicting National Standard (dow): 31 December 2008
ETSI
---------------------- Page: 7 ----------------------
SIST EN 302 583 V1.1.1:2008
6 ETSI EN 302 583 V1.1.1 (2008-03)
1 Scope
The present document specifies a transmission system for hybrid satellite and terrestrial digital television broadcasting
to mobile terminals. It is derived from the DVB-T [1] and DVB-H [6] system specification, respectively designed for
digital television terrestrial broadcasting towards fixed and mobile terminals and DVB-S2, [2] designed for digital
satellite broadcasting towards fixed terminals. The purpose of the DVB-SH standard is to provide an efficient
transmission system using frequencies below 3 GHz suitable for Satellite Services to Handheld devices, in terms of
reception threshold and resistance to mobile satellite channel impairments.
The system relies on a hybrid satellite/terrestrial infrastructure. The signals are broadcast to mobile terminals on two
paths:
• A direct path from a broadcast station to the terminals via the satellite.
• An indirect path from a broadcast station to terminals via terrestrial repeaters that form the Complementary
Ground Component (CGC) to the satellite. The CGC can be fed through satellite and/or terrestrial distribution
networks.
The system includes two transmission modes:
• An OFDM mode based on DVB-T standard [1] with enhancements. This mode can be used on both the direct
and indirect paths; the two signals are combined in the receiver to strengthen the reception in a SFN
configuration.
• A TDM mode partly derived from DVB-S2 standard [2], in order to optimize transmission through satellite
towards mobile terminals. This mode is used on the direct path only. The system supports code diversity
recombination between satellite TDM and terrestrial OFDM modes so as to increase the robustness of the
transmission in relevant areas (mainly suburban).
The present document specifies the digital signal format and the digital signal modulation and coding in order to allow
compatibility between pieces of equipment developed by different manufacturers. Signal processing at the modulator
side is described in details, while processing at receiver side is left open to a particular implementation (as far as it
complies with the present document).
2 References
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.
• Non-specific reference may be made only to a complete document or a part thereof and only in the following
cases:
- if it is accepted that it will be possible to use all future changes of the referenced document for the
purposes of the referring document;
- for informative references.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
For online referenced documents, information sufficient to identify and locate the source shall be provided. Preferably,
the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the
reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the
method of access to the referenced document and the full network address, with the same punctuation and use of upper
case and lower case letters.
NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee
their long term validity.
ETSI
---------------------- Page: 8 ----------------------
SIST EN 302 583 V1.1.1:2008
7 ETSI EN 302 583 V1.1.1 (2008-03)
2.1 Normative references
The following referenced documents are indispensable for the application of the present document. For dated
references, only the edition cited applies. For non-specific references, the latest edition of the referenced document
(including any amendments) applies.
[1] ETSI EN 300 744: "Digital Video Broadcasting (DVB); Framing structure, channel coding and
modulation for digital terrestrial television".
[2] ETSI EN 302 307: "Digital Video Broadcasting (DVB); Second generation framing structure,
channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering
and other broadband satellite applications".
[3] 3GPP2 C.S0002-D, September 2005: "3GPP2: Physical Layer Standard for cdma2000 Spread
Spectrum Systems, Revision D".
NOTE: See http://www.3gpp2.org/Public_html/specs/C.S0002-D_v2.0_051006.pdf.
[4] ISO/IEC 13818-1: "Information technology - Generic coding of moving pictures and associated
audio information: Systems".
[5] ETSI EN 301 192: "Digital Video Broadcasting (DVB); DVB specification for data broadcasting".
[6] ETSI EN 302 304: "Digital Video Broadcasting (DVB); Transmission System for Handheld
Terminals (DVB-H)".
[7] ETSI TS 102 606: "Digital Video Broadcasting (DVB); Generic Stream Encapsulation (GSE)
Protocol".
[8] Void.
[9] ETSI TS 102 585: "Digital Video Broadcasting (DVB); System Specifications for Satellite
services to Handheld devices (SH) below 3 GHz".
[10] ETSI EN 300 468: "Digital Video Broadcasting (DVB); Specification for Service Information (SI)
in DVB systems".
2.2 Informative references
Not applicable.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
class 1 receiver: support short physical layer protection in the order of one DVB-H burst
NOTE: As defined in [9].
class 2 receivers: support long physical layer protection in the order of several DVB-H bursts
NOTE: As defined in [9].
code combining: transmission and decoding technique consisting in transmitting complementary or partially
complementary components of a mother code through different channels (in SH-B systems, using satellite TDM and
terrestrial OFDM) and recombining the punctured parts into a single coded FEC block before decoding
ETSI
---------------------- Page: 9 ----------------------
SIST EN 302 583 V1.1.1:2008
8 ETSI EN 302 583 V1.1.1 (2008-03)
SH-A architecture: DVB-SH system using OFDM on the satellite path
NOTE: As defined in [9].
SH-B architecture: DVB-SH system using TDM on the satellite path
NOTE: As defined in [9].
3.2 Symbols
For the purposes of the present document, the following symbols apply:
L Turbo Code input block length in bits
TC-input
q' Symbol Number
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BCH Bose, Ray-Chaudhuri, Hocquenghem
CGC Complementary Ground Component
CR Code Rate
CRC Cyclic Redundancy Check
CU Capacity Unit
NOTE: Defined as a block of 2 016 bits.
D Decimal notation
DFL DATAFIELD Length
DVB Digital Video Broadcasting project
DVB-H Digital Video Broadcasting for Handheld terminals
DVB-S Digital Video Broadcasting for Satellite services
DVB-S2 DVB-S, second generation
DVB-T Digital Video Broadcasting for Terrestrial services
EBU European Broadcasting Union
EFRAME Encapsulation Frame
EHEADER Encapsulation Frame Header
EN European Norm
EXOR Exclusive OR function
FEC Forward Error Correction
FFT Fast Fourier Transform
FIFO First In First Out
GF Galois Field
ISI Input Stream Identifier
IU Interleaver Unit
NOTE: Defined as a set of 126 bits.
LSB Least Significant Bit
MIP Mega-frame Initialization Packet
MPE Multi-Protocol Encapsulation
MPEG Moving Pictures Experts Group
MPEG-TS MPEG-Transport Stream
MSB Most Significant Bit
N Number of bits at the output of the bit interleaver
BIL
NCW Number of Coded words
Number of bits of the FEC (turbo) coded block
NTCB
OFDM Orthogonal Frequency Division Multiplexing
PER (MPEG TS) Packet Error Rate
PID Packet IDentifier
PL Physical Layer
ETSI
---------------------- Page: 10 ----------------------
SIST EN 302 583 V1.1.1:2008
9 ETSI EN 302 583 V1.1.1 (2008-03)
PRBS Pseudo Random Binary Sequence
PSK Phase Shift Keying
QAM Quadrature Amplitude Modulation
QPSK Quaternary Phase Shift Keying
RF Radio Frequency
RFU Reserved for Future Use
RSC Recursive Systematic Convolutional Coder
SF Signalling Field (inserted in TDM mode)
SFN Single Frequency Network
SH Satellite to Handheld
SHIP SH frame Initialization Packet
SHL SH frame Length (variable in TDM mode)
SL Service Layer
SOF Start Of Frame (inserted in TDM mode)
SYNC User packet SYNChronization byte
EXAMPLE: 0x47 for MPEG packets.
TDM Time Division Multiplex
TS Transport Stream
UP User Packet
UPL User Packet Length
4 Transmission system description
4.1 System definition
The system is mainly designed to transport mobile TV services. It may also support a wide range of mobile multimedia
services, e.g. audio and data broadcast as well as file download services.
The system performs the adaptation and transmission of one or two (in case of hierarchical mode) baseband signals to
both satellite and terrestrial channel characteristics. Baseband signals at system input are, by default, MPEG Transport
Streams (MPEG-TS, see [4]) and are composed of bursts compliant with DVB-H time slicing [5]. Typically a burst
transports a given service (or set of services), e.g. a TV channel. The size of each burst may vary with time in order to
support Variable burst Bit Rate.
The present document applies to the MPEG-TS format but the support of a Generic Stream is not precluded
(see clause 5.1).
4.2 System architecture
Figure 4.1 describes the transmission system. It includes two modulation possibilities for the satellite path: an OFDM
mode based on DVB-T standard and a TDM mode, partly derived from DVB-S2 structure.
The following process, composed of a part common to both modes, and parts dedicated to each mode, shall be applied
to the input stream(s):
Both modes:
• Mode adaptation: CRC-16 and inse
...
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