Digital Video Broadcasting (DVB) - Next Generation broadcasting system to Handheld, physical layer specification (DVB-NGH) - Part 3: Hybrid Profile

The present document describes the next generation transmission system for digital hybrid (combination of terrestrial
with satellite transmissions) broadcasting to handheld terminals. It specifies the differences of the Hybrid Profile
physical layer part to the physical layer part of the Base Profile ETSI EN 303 105-1 [1] from the input streams to the
transmitted signals. This transmission system is intended for carrying Transport Streams or generic data streams feeding
linear and non-linear applications like television, radio and data services. DVB-NGH terminals might also process
DVB-T2-lite signals.

Digitalna videoradiodifuzija (DVB) - Radiodifuzijski sistem naslednje generacije za dlančnike, specifikacija fizične plasti (DVB-NGH) - 3. del: Hibridni profil

Ta dokument opisuje sistem prenosa naslednje generacije za digitalno hibridno (kombinacija prizemnih in satelitskih prenosov) radiodifuzijo, namenjeno ročno upravljanim terminalom. Določa razlike med delom fizične plasti hibridnega profila in delom fizične plasti osnovnega profila ETSI EN 303 105-1 [1] od vhodnih tokov do prenesenih signalov. Ta sistem prenosa je namenjen prenašanju transportnih tokov ali splošnih podatkovnih tokov v linearne in nelinearne aplikacije, kot so televizija, radio in podatkovne storitve. Terminali DVB-NGH lahko obdelujejo tudi signale DVB-T2-lite.

General Information

Status
Published
Public Enquiry End Date
31-Mar-2022
Publication Date
05-Apr-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Apr-2022
Due Date
09-Jun-2022
Completion Date
06-Apr-2022

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ETSI EN 303 105-3 V1.1.1 (2022-03)
EUROPEAN STANDARD
Digital Video Broadcasting (DVB);
Next Generation broadcasting system to Handheld,
physical layer specification (DVB-NGH);
Part 3: Hybrid Profile
---------------------- Page: 1 ----------------------
2 ETSI EN 303 105-3 V1.1.1 (2022-03)
Reference
DEN/JTC-DVB-373-3
Keywords
audio, broadcasting, data, digital, DVB, hybrid,
MIMO, MPEG, radio, satellite, terrestrial, TV, video
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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

Users of the present document should be aware that the document may be subject to revision or change of status.

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Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
© European Broadcasting Union 2022.
All rights reserved.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 303 105-3 V1.1.1 (2022-03)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 7

3.3 Abbreviations ..................................................................................................................................................... 8

4 DVB-NGH hybrid system definition............................................................................................. ........... 8

4.1 System overview and architecture ...................................................................................................................... 8

4.1.1 Overview ...................................................................................................................................................... 8

4.1.2 Bit-interleaved coding and modulation, MISO precoding .......................................................................... 10

4.1.3 Frame building, frequency interleaving ...................................................................................................... 11

4.1.4 OFDM generation ....................................................................................................................................... 11

4.1.5 SC-OFDM generation ................................................................................................................................. 12

5 Input processing ..................................................................................................................................... 12

6 Bit interleaved coding and modulation .................................................................................................. 12

6.0 Overview .......................................................................................................................................................... 12

6.1 Constellation mapping ...................................................................................................................................... 12

6.2 Time interleaver ............................................................................................................................................... 12

6.3 Distributed and cross-polar MISO .................................................................................................................... 14

7 Layer 1 signalling data specific for the Hybrid Profile .......................................................................... 14

7.1 P1 and additional P1 signalling data................................................................................................................. 14

7.2 L1-PRE signalling data .................................................................................................................................... 15

7.3 L1-POST signalling data .................................................................................................................................. 15

7.3.1 L1-POST configurable signalling data ....................................................................................................... 15

7.3.2 L1-POST dynamic signalling data .............................................................................................................. 16

7.3.3 In-band signalling type A ........................................................................................................................... 16

8 Frame Builder ......................................................................................................................................... 16

8.1 SC-OFDM ........................................................................................................................................................ 16

8.1.1 NGH hybrid SC-OFDM frames .................................................................................................................. 16

8.1.1.1 Duration of the NGH hybrid SC-OFDM frame .................................................................................... 16

8.1.1.2 Capacity and structure of the NGH hybrid SC-OFDM frame ............................................................... 17

8.1.2 Frequency interleaver ................................................................................................................................. 18

9 OFDM Generation .................................................................................................................................. 18

10 SC-OFDM generation ............................................................................................................................ 19

10.1 Overview .......................................................................................................................................................... 19

10.2 Spreading .......................................................................................................................................................... 19

10.3 Pilot insertion ................................................................................................................................................... 20

10.3.1 Introduction................................................................................................................................................. 20

10.3.2 Definition of the reference NGH hybrid sequence ..................................................................................... 21

10.3.3 Scattered pilot insertion .............................................................................................................................. 21

10.3.3.0 Overview ............................................................................................................................................... 21

10.3.3.1 Locations of the scattered pilots ............................................................................................................ 21

10.3.3.2 Amplitudes of the scattered pilots ......................................................................................................... 21

10.3.3.3 Modulation of the scattered pilots ......................................................................................................... 22

10.4 IFFT - SC-OFDM modulation.......................................................................................................................... 22

10.5 Guard interval insertion .................................................................................................................................... 22

ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 303 105-3 V1.1.1 (2022-03)

Annex A (informative): SC-OFDM pilot pattern ................................................................................ 24

Annex B (normative): Receiver Buffer Model extension .................................................................. 25

Annex C (informative): Bibliography ................................................................................................... 26

History .............................................................................................................................................................. 27

ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 303 105-3 V1.1.1 (2022-03)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are 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 (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This European Standard (EN) 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).

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

The DVB Project is an industry-led consortium of broadcasters, manufacturers, network operators, software developers,

regulators and others from around the world committed to designing open, interoperable technical specifications for the

global delivery of digital media and broadcast services. DVB specifications cover all aspects of digital television from

transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium

came together in 1993.

The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].

ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 303 105-3 V1.1.1 (2022-03)
National transposition dates
Date of adoption of this EN: 24 March 2022
Date of latest announcement of this EN (doa): 30 June 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2022
Date of withdrawal of any conflicting National Standard (dow): 31 December 2022
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 6 ----------------------
7 ETSI EN 303 105-3 V1.1.1 (2022-03)
1 Scope

The present document describes the next generation transmission system for digital hybrid (combination of terrestrial

with satellite transmissions) broadcasting to handheld terminals. It specifies the differences of the Hybrid Profile

physical layer part to the physical layer part of the Base Profile ETSI EN 303 105-1 [1] from the input streams to the

transmitted signals. This transmission system is intended for carrying Transport Streams or generic data streams feeding

linear and non-linear applications like television, radio and data services. DVB-NGH terminals might also process

DVB-T2-lite signals.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://docbox.etsi.org/Reference/.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] ETSI EN 303 105-1: "Digital Video Broadcasting (DVB); Next Generation broadcasting system to

Handheld, physical layer specification (DVB-NGH); Part 1: Base Profile".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.
Not applicable.
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 303 105-1 [1] apply.

3.2 Symbols

For the purposes of the present document, the symbols given in ETSI EN 303 105-1 [1] apply.

ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 303 105-3 V1.1.1 (2022-03)
3.3 Abbreviations

For the purposes of the present document, the abbreviations given in ETSI EN 303 105-1 [1] apply.

4 DVB-NGH hybrid system definition
4.1 System overview and architecture
4.1.1 Overview

The Hybrid Profile - reflected by the present document - specifies the hybrid signal format, composed of a component

coming from the terrestrial network, and an additional component, coming from the satellite. Hybrid signals according

to the NGH profile reflected by the present document include an additional P1 symbol (aP1, see ETSI

EN 303 105-1 [1], clause 11.8.3). The satellite component of the Hybrid Profile - reflected by the present document - is

defined for channel bandwidths 1, 7, 2 and 5 MHz (these three bandwidths are also covered by the Base Profile [1]).

Hybrid NGH signals can also be Base Profile compliant, in which case they are covered by ETSI EN 303 105-1 [1].

Besides defining the hybrid signals, the Hybrid Profile - reflected by the present document - defines moreover the

mechanisms to receive two signals simultaneously (one signal from a terrestrial transmitter and one from the satellite)

and to combine their outputs to a single stream.

Figure 1 represents the high level NGH physical layer block diagram of the Hybrid Profile - reflected by the present

document. Two chains are present, one for the terrestrial component and the other for the satellite component.

Compared to the Base Profile, the terrestrial and satellite chains of the Hybrid Profile - reflected by the present

document - present potential functional differences in the BICM, frame building and waveform generation. The system

architecture of the satellite component is that of the terrestrial component, with the possibility of replacing the OFDM

modulation block by the SC-OFDM modulation block, characterized additionally by the absence of particular functional

blocks as explained in clause 4.1. Time frequency slicing can be applied to both, the terrestrial and the satellite

components.
NOTE: Blocks differing from the Base Profile are shaded grey.
Figure 1: High level NGH physical layer block diagram of the Hybrid Profile
- reflected by the present document
ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 303 105-3 V1.1.1 (2022-03)

Both SFN and MFN configurations are possible for the Hybrid Profile - reflected by the present document. In the SFN

case, when the satellite and terrestrial components share the same frequency, the signal transmitted in the two

components shall be exactly the same. The system input(s) to the terrestrial and the satellite path may differ from each

other in the MFN case. In the MFN case, the system architecture of the Hybrid Profile of DVB-NGH - reflected by the

present document - is composed of two components: the terrestrial component, as specified in ETSI EN 303 105-1 [1],

and the satellite component, as represented in figure 1.

MISO in the Hybrid Profile - reflected by the present document - is applicable to OFDM only, to both, the terrestrial

and the satellite paths.

Table 1 indicates the allowed parameter settings for the Hybrid Profile - reflected by the present document. According

to it, the following hybrid cases can be devised:

• SFN, OFDM: The terrestrial network and the satellite share the same frequency and the same signal is

transmitted on the two components. The signal waveform is OFDM and the preambles of both components

consist of a P1 plus an aP1 symbol. The OFDM parameter set is applicable to both components, terrestrial and

satellite. Alternatively, the Base Profile could be adopted for both components. In that case the P1 part of the

preamble of both components consists of a P1 symbol only.

• MFN, OFDM: The satellite signal is transmitted on a different frequency, OFDM is used on both components.

The terrestrial component is transmitted according to the Base Profile, the satellite component according to the

OFDM settings listed in table 1. The preamble of the terrestrial component consists of a P1 symbol and the

preamble of the satellite component consists of a P1 plus an aP1 symbol.

• SFN, SC-OFDM: This case consists of the satellite coverage and of terrestrial gap fillers sharing the same

frequency of the satellite signal. The SC-OFDM settings are applicable to both components, terrestrial and

satellite. Preambles consist of P1 plus aP1 symbols for the satellite and the terrestrial component.

• MFN, SC-OFDM on the satellite component, OFDM on the terrestrial component: The terrestrial component

is configured in line with the Base Profile, the satellite component using the permitted SC-OFDM settings

outlined in table 1. The preamble of the terrestrial component consists of a P1 symbol and the one of the

satellite component of a P1 plus an aP1 symbol.

Table 1: Allowed parameter settings for the Hybrid Profile - reflected by the present document

Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Bandwidths 1,7 MHz X X
2,5 MHz X X
5,0 MHz X X
6,0 MHz
7,0 MHz
8,0 MHz
10,0 MHz
15,0 MHz
20,0 MHz
Constellations QPSK X X
16-QAM X X
64-QAM
256-QAM
FFT sizes 0,5k X
1k X X
2k X X
16k
ETSI
---------------------- Page: 9 ----------------------
10 ETSI EN 303 105-3 V1.1.1 (2022-03)
Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Guard intervals 1/128
1/32 X X
1/16 X X
19/256
1/8 X
19/128
1/4 X
Preambles Single P1
P1 + aP1 X X
Pilot patterns Continuous
pilot symbols X
PP1 X
PP2 X
PP3 X
PP4 X
PP5 X
PP6
PP7
PP9 X
FEC code rates 1/5 (=3/15) X X
4/15 X X
1/3 (=5/15) X X
2/5 (=6/15) X X
7/15 X X
8/15 X X
3/5 (=9/15) X X
2/3 (=10/15) X X
11/15 X X
3/4 X X
MISO X
Time de-interleaver According to
size See note 2 clause 6.2 According to clause 6.2

NOTE 1: Not all parameter settings listed above can be combined with each other.

The exceptions are described in the following clauses.

NOTE 2: In situations where a receiver needs to time de-interleave both, the terrestrial

and the satellite signal, in parallel, limits for the time de-interleaver size
outlined in clause 6.2 apply to the combination of both signals, i.e. they
cannot simultaneously make use of the full specified time de-interleaver
memory size.
4.1.2 Bit-interleaved coding and modulation, MISO precoding

The block diagram, illustrating the functional differences in the BICM stage, is shown in figure 2. Further to the time

interleaving configurations of the Base Profile, the Hybrid Profile - reflected by the present document - allows a

concentration of cells at the end of the logical frame sequence over which a FEC block is spread (uniform-late

interleaving).
ETSI
---------------------- Page: 10 ----------------------
11 ETSI EN 303 105-3 V1.1.1 (2022-03)
NOTE: (*): Applicable to OFDM waveform only.
Figure 2: BICM of the Hybrid Profile - reflected by the present document
(applicable to the terrestrial and the satellite path)
4.1.3 Frame building, frequency interleaving

The block diagram, illustrating the functional differences in frame building stage, is shown in figure 3. This is the same

architecture as the Base Profile except for the allocation of space for the aP1 symbol. As far as the physical and the

logical framing is concerned, the same mechanisms are used for the terrestrial and satellite components. These

mechanisms are described in ETSI EN 303 105-1 [1], clause 9. The frequency interleaver is applicable to OFDM only.

Figure 3: Frame builder of the Hybrid Profile - reflected by the present document

(applicable to the terrestrial and the satellite path)
4.1.4 OFDM generation

The block diagram, illustrating the functional differences in the OFDM generation stage, is shown in figure 4. The only

functional difference is the insertion of the additional preamble symbol aP1, following the preamble symbol P1, as

specified in ETSI EN 303 105-1 [1], clause 11.8.3.
Figure 4: OFDM generation (applicable to the terrestrial and the satellite path)
ETSI
---------------------- Page: 11 ----------------------
12 ETSI EN 303 105-3 V1.1.1 (2022-03)
4.1.5 SC-OFDM generation

The block diagram, illustrating the SC-OFM generation stage, is shown in figure 5. The functional differences to the

OFDM generation are the additional spreading stage (see clause 8.1 below), a different pilot pattern, the absence of

continual pilots, the absence of edge pilots, the absence of a frame closing symbol (see annex A for the latter three), the

absence of PAPR reduction and the additional preamble symbol aP1 (specified in ETSI EN 303 105-1 [1],

clause 11.8.3). Furthermore, the number of sub-carriers per SC-OFDM symbol is even.

Figure 5: SC-OFDM generation (applicable to the satellite path only)
5 Input processing

Input processing follows the same mechanism as the Base Profile [1]. The compensating delay function enables the

end-to-end delay of services transmitted in both the terrestrial and satellite signals to be aligned. An important use case

for this is hybrid combining of a terrestrial and a satellite signal in a hybrid Multi-Frequency Network (MFN). For

instance, the terrestrial signal may use time interleaving of duration 1 s for the considered input stream, while the

satellite signal uses 10 s. Hence, a compensating delay of 9 s shall be used in the terrestrial modulator for this input

stream, while the satellite modulator does not need any compensating delay.
6 Bit interleaved coding and modulation
6.0 Overview

The bit interleaved coding and modulation module is almost identical to the one of the Base Profile. The differences are

described in this clause.
6.1 Constellation mapping

64-QAM and 256-QAM constellations (uniform and non-uniform) shall not be used for the satellite component, i.e.

(NU-)64-QAM and (NU-)256-QAM are only allowed in the Hybrid Profile - reflected by the present document - for the

terrestrial component in an MFN configuration.
6.2 Time interleaver

The time interleaving in hybrid signals is almost similar to the procedure described in ETSI EN 303 105-1 [1],

clause 6.6 of the Base Profile. The differences are explained in this clause.

While the Base Profile ETSI EN 303 105-1 [1] spreads the IUs uniformly over the configured time interleaver length � ,

hybrid signals allow a concentration of cells at the end of the NGH logical frame sequence, over which a FEC block is

spread (uniform-late interleaving). Hence it is possible
...

SLOVENSKI STANDARD
SIST EN 303 105-3 V1.1.1:2022
01-maj-2022

Digitalna videoradiodifuzija (DVB) - Radiodifuzijski sistem naslednje generacije za

dlančnike, specifikacija fizične plasti (DVB-NGH) - 3. del: Hibridni profil

Digital Video Broadcasting (DVB) - Next Generation broadcasting system to Handheld,

physical layer specification (DVB-NGH) - Part 3: Hybrid Profile
Ta slovenski standard je istoveten z: ETSI EN 303 105-3 V1.1.1 (2022-03)
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
35.100.10 Fizični sloj Physical layer
SIST EN 303 105-3 V1.1.1:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 303 105-3 V1.1.1:2022
---------------------- Page: 2 ----------------------
SIST EN 303 105-3 V1.1.1:2022
ETSI EN 303 105-3 V1.1.1 (2022-03)
EUROPEAN STANDARD
Digital Video Broadcasting (DVB);
Next Generation broadcasting system to Handheld,
physical layer specification (DVB-NGH);
Part 3: Hybrid Profile
---------------------- Page: 3 ----------------------
SIST EN 303 105-3 V1.1.1:2022
2 ETSI EN 303 105-3 V1.1.1 (2022-03)
Reference
DEN/JTC-DVB-373-3
Keywords
audio, broadcasting, data, digital, DVB, hybrid,
MIMO, MPEG, radio, satellite, terrestrial, TV, video
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 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871
Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI

deliverable is the one made publicly available in PDF format at www.etsi.org/deliver.

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

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

If you find errors in the present document, please send your comment to one of the following services:

https://portal.etsi.org/People/CommiteeSupportStaff.aspx

If you find a security vulnerability in the present document, please report it through our

Coordinated Vulnerability Disclosure Program:
https://www.etsi.org/standards/coordinated-vulnerability-disclosure
Notice of disclaimer & limitation of liability

The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of

experience to understand and interpret its content in accordance with generally accepted engineering or

other professional standard and applicable regulations.

No recommendation as to products and services or vendors is made or should be implied.

In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not

limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property

rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages

for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use

of or inability to use the software.
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2022.
© European Broadcasting Union 2022.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 303 105-3 V1.1.1:2022
3 ETSI EN 303 105-3 V1.1.1 (2022-03)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 7

3.3 Abbreviations ..................................................................................................................................................... 8

4 DVB-NGH hybrid system definition............................................................................................. ........... 8

4.1 System overview and architecture ...................................................................................................................... 8

4.1.1 Overview ...................................................................................................................................................... 8

4.1.2 Bit-interleaved coding and modulation, MISO precoding .......................................................................... 10

4.1.3 Frame building, frequency interleaving ...................................................................................................... 11

4.1.4 OFDM generation ....................................................................................................................................... 11

4.1.5 SC-OFDM generation ................................................................................................................................. 12

5 Input processing ..................................................................................................................................... 12

6 Bit interleaved coding and modulation .................................................................................................. 12

6.0 Overview .......................................................................................................................................................... 12

6.1 Constellation mapping ...................................................................................................................................... 12

6.2 Time interleaver ............................................................................................................................................... 12

6.3 Distributed and cross-polar MISO .................................................................................................................... 14

7 Layer 1 signalling data specific for the Hybrid Profile .......................................................................... 14

7.1 P1 and additional P1 signalling data................................................................................................................. 14

7.2 L1-PRE signalling data .................................................................................................................................... 15

7.3 L1-POST signalling data .................................................................................................................................. 15

7.3.1 L1-POST configurable signalling data ....................................................................................................... 15

7.3.2 L1-POST dynamic signalling data .............................................................................................................. 16

7.3.3 In-band signalling type A ........................................................................................................................... 16

8 Frame Builder ......................................................................................................................................... 16

8.1 SC-OFDM ........................................................................................................................................................ 16

8.1.1 NGH hybrid SC-OFDM frames .................................................................................................................. 16

8.1.1.1 Duration of the NGH hybrid SC-OFDM frame .................................................................................... 16

8.1.1.2 Capacity and structure of the NGH hybrid SC-OFDM frame ............................................................... 17

8.1.2 Frequency interleaver ................................................................................................................................. 18

9 OFDM Generation .................................................................................................................................. 18

10 SC-OFDM generation ............................................................................................................................ 19

10.1 Overview .......................................................................................................................................................... 19

10.2 Spreading .......................................................................................................................................................... 19

10.3 Pilot insertion ................................................................................................................................................... 20

10.3.1 Introduction................................................................................................................................................. 20

10.3.2 Definition of the reference NGH hybrid sequence ..................................................................................... 21

10.3.3 Scattered pilot insertion .............................................................................................................................. 21

10.3.3.0 Overview ............................................................................................................................................... 21

10.3.3.1 Locations of the scattered pilots ............................................................................................................ 21

10.3.3.2 Amplitudes of the scattered pilots ......................................................................................................... 21

10.3.3.3 Modulation of the scattered pilots ......................................................................................................... 22

10.4 IFFT - SC-OFDM modulation.......................................................................................................................... 22

10.5 Guard interval insertion .................................................................................................................................... 22

ETSI
---------------------- Page: 5 ----------------------
SIST EN 303 105-3 V1.1.1:2022
4 ETSI EN 303 105-3 V1.1.1 (2022-03)

Annex A (informative): SC-OFDM pilot pattern ................................................................................ 24

Annex B (normative): Receiver Buffer Model extension .................................................................. 25

Annex C (informative): Bibliography ................................................................................................... 26

History .............................................................................................................................................................. 27

ETSI
---------------------- Page: 6 ----------------------
SIST EN 303 105-3 V1.1.1:2022
5 ETSI EN 303 105-3 V1.1.1 (2022-03)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are 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 (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

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oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.

Foreword

This European Standard (EN) 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).

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

The DVB Project is an industry-led consortium of broadcasters, manufacturers, network operators, software developers,

regulators and others from around the world committed to designing open, interoperable technical specifications for the

global delivery of digital media and broadcast services. DVB specifications cover all aspects of digital television from

transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium

came together in 1993.

The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].

ETSI
---------------------- Page: 7 ----------------------
SIST EN 303 105-3 V1.1.1:2022
6 ETSI EN 303 105-3 V1.1.1 (2022-03)
National transposition dates
Date of adoption of this EN: 24 March 2022
Date of latest announcement of this EN (doa): 30 June 2022
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2022
Date of withdrawal of any conflicting National Standard (dow): 31 December 2022
Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
---------------------- Page: 8 ----------------------
SIST EN 303 105-3 V1.1.1:2022
7 ETSI EN 303 105-3 V1.1.1 (2022-03)
1 Scope

The present document describes the next generation transmission system for digital hybrid (combination of terrestrial

with satellite transmissions) broadcasting to handheld terminals. It specifies the differences of the Hybrid Profile

physical layer part to the physical layer part of the Base Profile ETSI EN 303 105-1 [1] from the input streams to the

transmitted signals. This transmission system is intended for carrying Transport Streams or generic data streams feeding

linear and non-linear applications like television, radio and data services. DVB-NGH terminals might also process

DVB-T2-lite signals.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://docbox.etsi.org/Reference/.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] ETSI EN 303 105-1: "Digital Video Broadcasting (DVB); Next Generation broadcasting system to

Handheld, physical layer specification (DVB-NGH); Part 1: Base Profile".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.
Not applicable.
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 303 105-1 [1] apply.

3.2 Symbols

For the purposes of the present document, the symbols given in ETSI EN 303 105-1 [1] apply.

ETSI
---------------------- Page: 9 ----------------------
SIST EN 303 105-3 V1.1.1:2022
8 ETSI EN 303 105-3 V1.1.1 (2022-03)
3.3 Abbreviations

For the purposes of the present document, the abbreviations given in ETSI EN 303 105-1 [1] apply.

4 DVB-NGH hybrid system definition
4.1 System overview and architecture
4.1.1 Overview

The Hybrid Profile - reflected by the present document - specifies the hybrid signal format, composed of a component

coming from the terrestrial network, and an additional component, coming from the satellite. Hybrid signals according

to the NGH profile reflected by the present document include an additional P1 symbol (aP1, see ETSI

EN 303 105-1 [1], clause 11.8.3). The satellite component of the Hybrid Profile - reflected by the present document - is

defined for channel bandwidths 1, 7, 2 and 5 MHz (these three bandwidths are also covered by the Base Profile [1]).

Hybrid NGH signals can also be Base Profile compliant, in which case they are covered by ETSI EN 303 105-1 [1].

Besides defining the hybrid signals, the Hybrid Profile - reflected by the present document - defines moreover the

mechanisms to receive two signals simultaneously (one signal from a terrestrial transmitter and one from the satellite)

and to combine their outputs to a single stream.

Figure 1 represents the high level NGH physical layer block diagram of the Hybrid Profile - reflected by the present

document. Two chains are present, one for the terrestrial component and the other for the satellite component.

Compared to the Base Profile, the terrestrial and satellite chains of the Hybrid Profile - reflected by the present

document - present potential functional differences in the BICM, frame building and waveform generation. The system

architecture of the satellite component is that of the terrestrial component, with the possibility of replacing the OFDM

modulation block by the SC-OFDM modulation block, characterized additionally by the absence of particular functional

blocks as explained in clause 4.1. Time frequency slicing can be applied to both, the terrestrial and the satellite

components.
NOTE: Blocks differing from the Base Profile are shaded grey.
Figure 1: High level NGH physical layer block diagram of the Hybrid Profile
- reflected by the present document
ETSI
---------------------- Page: 10 ----------------------
SIST EN 303 105-3 V1.1.1:2022
9 ETSI EN 303 105-3 V1.1.1 (2022-03)

Both SFN and MFN configurations are possible for the Hybrid Profile - reflected by the present document. In the SFN

case, when the satellite and terrestrial components share the same frequency, the signal transmitted in the two

components shall be exactly the same. The system input(s) to the terrestrial and the satellite path may differ from each

other in the MFN case. In the MFN case, the system architecture of the Hybrid Profile of DVB-NGH - reflected by the

present document - is composed of two components: the terrestrial component, as specified in ETSI EN 303 105-1 [1],

and the satellite component, as represented in figure 1.

MISO in the Hybrid Profile - reflected by the present document - is applicable to OFDM only, to both, the terrestrial

and the satellite paths.

Table 1 indicates the allowed parameter settings for the Hybrid Profile - reflected by the present document. According

to it, the following hybrid cases can be devised:

• SFN, OFDM: The terrestrial network and the satellite share the same frequency and the same signal is

transmitted on the two components. The signal waveform is OFDM and the preambles of both components

consist of a P1 plus an aP1 symbol. The OFDM parameter set is applicable to both components, terrestrial and

satellite. Alternatively, the Base Profile could be adopted for both components. In that case the P1 part of the

preamble of both components consists of a P1 symbol only.

• MFN, OFDM: The satellite signal is transmitted on a different frequency, OFDM is used on both components.

The terrestrial component is transmitted according to the Base Profile, the satellite component according to the

OFDM settings listed in table 1. The preamble of the terrestrial component consists of a P1 symbol and the

preamble of the satellite component consists of a P1 plus an aP1 symbol.

• SFN, SC-OFDM: This case consists of the satellite coverage and of terrestrial gap fillers sharing the same

frequency of the satellite signal. The SC-OFDM settings are applicable to both components, terrestrial and

satellite. Preambles consist of P1 plus aP1 symbols for the satellite and the terrestrial component.

• MFN, SC-OFDM on the satellite component, OFDM on the terrestrial component: The terrestrial component

is configured in line with the Base Profile, the satellite component using the permitted SC-OFDM settings

outlined in table 1. The preamble of the terrestrial component consists of a P1 symbol and the one of the

satellite component of a P1 plus an aP1 symbol.

Table 1: Allowed parameter settings for the Hybrid Profile - reflected by the present document

Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Bandwidths 1,7 MHz X X
2,5 MHz X X
5,0 MHz X X
6,0 MHz
7,0 MHz
8,0 MHz
10,0 MHz
15,0 MHz
20,0 MHz
Constellations QPSK X X
16-QAM X X
64-QAM
256-QAM
FFT sizes 0,5k X
1k X X
2k X X
16k
ETSI
---------------------- Page: 11 ----------------------
SIST EN 303 105-3 V1.1.1:2022
10 ETSI EN 303 105-3 V1.1.1 (2022-03)
Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Guard intervals 1/128
1/32 X X
1/16 X X
19/256
1/8 X
19/128
1/4 X
Preambles Single P1
P1 + aP1 X X
Pilot patterns Continuous
pilot symbols X
PP1 X
PP2 X
PP3 X
PP4 X
PP5 X
PP6
PP7
PP9 X
FEC code rates 1/5 (=3/15) X X
4/15 X X
1/3 (=5/15) X X
2/5 (=6/15) X X
7/15 X X
8/15 X X
3/5 (=9/15) X X
2/3 (=10/15) X X
11/15 X X
3/4 X X
MISO X
Time de-interleaver According to
size See note 2 clause 6.2 According to clause 6.2

NOTE 1: Not all parameter settings listed above can be combined with each other.

The exceptions are described in the following clauses.

NOTE 2: In situations where a receiver needs to time de-interleave both, the terrestrial

and the satellite signal, in parallel, limits for the time de-interleaver size
outlined in clause 6.2 apply to the combination of both signals, i.e. they
cannot simultaneously make use of the full specified time de-interleaver
memory size.
4.1.2 Bit-interleaved coding and modulation, MISO precoding

The block diagram, illustrating the functional differences in the BICM stage, is shown in figure 2. Further to the time

interleaving configurations of the Base Profile, the Hybrid Profile - reflected by the present document - allows a

concentration of cells at the end of the logical frame sequence over which a FEC block is spread (uniform-late

interleaving).
ETSI
---------------------- Page: 12 ----------------------
SIST EN 303 105-3 V1.1.1:2022
11 ETSI EN 303 105-3 V1.1.1 (2022-03)
NOTE: (*): Applicable to OFDM waveform only.
Figure 2: BICM of the Hybrid Profile - reflected by the present document
(applicable to the terrestrial and the satellite path)
4.1.3 Frame building, frequency interleaving

The block diagram, illustrating the functional differences in frame building stage, is shown in figure 3. This is the same

architecture as the Base Profile except for the allocation of space for the aP1 symbol. As far as the physical and the

logical framing is concerned, the same mechanisms are used for the terrestrial and satellite components. These

mechanisms are described in ETSI EN 303 105-1 [1], clause 9. The frequency interleaver is applicable to OFDM only.

Figure 3: Frame builder of the Hybrid Profile - reflected by the present document

(applicable to the terrestrial and the satellite path)
4.1.4 OFDM generation

The block diagram, illustrating the functional differences in the OFDM generation stage, is shown in figure 4. The only

functional difference is the insertion of the additional preamble symbol aP1, following the preamble symbol P1, as

specified in ETSI EN 303 105-1 [1], clause 11.8.3.
Figure 4: OFDM generation (applicable to the terrestrial and the satellite path)
ETSI
---------------------- Page: 13 ----------------------
SIST EN 303 105-3 V1.1.1:2022
12 ETSI EN 303 105-3 V1.1.1 (2022-03)
4.1.5 SC-OFDM generation

The block diagram, illustrating the SC-OFM generation stage, is shown in figure 5. The functional differences to the

OFDM generation are the additional spreading stage (see clause 8.1 below), a different pilot pattern, the absence of

continual pilots, the absence of edge pilots, the absence of a frame closing symbol (see annex A for the latter three), the

absence of PAPR reduction and the additional preamble symbol aP1 (specified in ETSI EN 303 105-1 [1],

clause 11.8.3). Furthermore, the number of sub-carriers per SC-OFDM symbol is even.

Figure 5: SC-OFDM generation (applicable to the satellite path only)
5 Input processing

Input processing follows the same mechanism as the Base Profile [1]. The compensating delay function enables the

end-to-end delay of services transmitted in both the terrestrial and satellite signals to be aligned. An important use case

for this is hybrid combining of a terrestrial and a satellite signal in a hybrid Multi-Frequency Network (MFN). For

instance, the terrestrial signal may use time interleaving of duration 1 s for the considered input

...

SLOVENSKI STANDARD
oSIST prEN 303 105-3 V1.0.3:2022
01-april-2022

Digitalna videoradiodifuzija (DVB) - Radiodifuzijski sistem naslednje generacije za

dlančnike, specifikacija fizične plasti (DVB-NGH) - 3. del: Hibridni profil

Digital Video Broadcasting (DVB) - Next Generation broadcasting system to Handheld,

physical layer specification (DVB-NGH) - Part 3: Hybrid Profile
Ta slovenski standard je istoveten z: ETSI EN 303 105-3 V1.0.3 (2021-12)
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
35.100.10 Fizični sloj Physical layer
oSIST prEN 303 105-3 V1.0.3:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
---------------------- Page: 2 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
Draft ETSI EN 303 105-3 V1.0.3 (2021-12)
EUROPEAN STANDARD
Digital Video Broadcasting (DVB);
Next Generation broadcasting system to Handheld,
physical layer specification (DVB-NGH);
Part 3: Hybrid Profile
---------------------- Page: 3 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
2 Draft ETSI EN 303 105-3 V1.0.3 (2021-12)
Reference
DEN/JTC-DVB-373-3
Keywords
audio, broadcasting, data, digital, DVB, hybrid,
MIMO, MPEG, radio, satellite, terrestrial, TV, video
ETSI
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No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2021.
© European Broadcasting Union 2021.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
3 Draft ETSI EN 303 105-3 V1.0.3 (2021-12)
Contents

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 7

3.3 Abbreviations ..................................................................................................................................................... 8

4 DVB-NGH hybrid system definition............................................................................................. ........... 8

4.1 System overview and architecture ...................................................................................................................... 8

4.1.1 Overview ...................................................................................................................................................... 8

4.1.2 Bit-interleaved coding and modulation, MISO precoding .......................................................................... 10

4.1.3 Frame building, frequency interleaving ...................................................................................................... 11

4.1.4 OFDM generation ....................................................................................................................................... 11

4.1.5 SC-OFDM generation ................................................................................................................................. 12

5 Input processing ..................................................................................................................................... 12

6 Bit interleaved coding and modulation .................................................................................................. 12

6.0 Overview .......................................................................................................................................................... 12

6.1 Constellation mapping ...................................................................................................................................... 12

6.2 Time interleaver ............................................................................................................................................... 12

6.3 Distributed and cross-polar MISO .................................................................................................................... 14

7 Layer 1 signalling data specific for the Hybrid Profile .......................................................................... 14

7.1 P1 and additional P1 signalling data................................................................................................................. 14

7.2 L1-PRE signalling data .................................................................................................................................... 15

7.3 L1-POST signalling data .................................................................................................................................. 15

7.3.1 L1-POST configurable signalling data ....................................................................................................... 15

7.3.2 L1-POST dynamic signalling data .............................................................................................................. 16

7.3.3 In-band signalling type A ........................................................................................................................... 16

8 Frame Builder ......................................................................................................................................... 16

8.1 SC-OFDM ........................................................................................................................................................ 16

8.1.1 NGH hybrid SC-OFDM frames .................................................................................................................. 16

8.1.1.1 Duration of the NGH hybrid SC-OFDM frame .................................................................................... 16

8.1.1.2 Capacity and structure of the NGH hybrid SC-OFDM frame ............................................................... 17

8.1.2 Frequency interleaver ................................................................................................................................. 18

9 OFDM Generation .................................................................................................................................. 18

10 SC-OFDM generation ............................................................................................................................ 19

10.1 Overview .......................................................................................................................................................... 19

10.2 Spreading .......................................................................................................................................................... 19

10.3 Pilot insertion ................................................................................................................................................... 20

10.3.1 Introduction................................................................................................................................................. 20

10.3.2 Definition of the reference NGH hybrid sequence ..................................................................................... 21

10.3.3 Scattered pilot insertion .............................................................................................................................. 21

10.3.3.0 Overview ............................................................................................................................................... 21

10.3.3.1 Locations of the scattered pilots ............................................................................................................ 21

10.3.3.2 Amplitudes of the scattered pilots ......................................................................................................... 21

10.3.3.3 Modulation of the scattered pilots ......................................................................................................... 22

10.4 IFFT - SC-OFDM modulation.......................................................................................................................... 22

10.5 Guard interval insertion .................................................................................................................................... 22

ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
4 Draft ETSI EN 303 105-3 V1.0.3 (2021-12)

Annex A (informative): SC-OFDM pilot pattern ................................................................................ 24

Annex B (normative): Receiver Buffer Model extension .................................................................. 25

Annex C (informative): Bibliography ................................................................................................... 26

History .............................................................................................................................................................. 27

ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 303 105-3 V1.0.3:2022
5 Draft ETSI EN 303 105-3 V1.0.3 (2021-12)
Intellectual Property Rights
Essential patents

IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations

pertaining to these essential IPRs, if any, are 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 (https://ipr.etsi.org/).

Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,

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.
Trademarks

The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.

ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no

right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does

not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.

DECT™, PLUGTESTS™, UMTS™ and the ETSI logo are trademarks of ETSI registered for the benefit of its

Members. 3GPP™ and LTE™ are trademarks of ETSI registered for the benefit of its Members and of the 3GPP

Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the

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Foreword

This draft European Standard (EN) 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 combined Public Enquiry and Vote phase

of the ETSI standards EN Approval Procedure.

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

The DVB Project is an industry-led consortium of broadcasters, manufacturers, network operators, software developers,

regulators and others from around the world committed to designing open, interoperable technical specifications for the

global delivery of digital media and broadcast services. DVB specifications cover all aspects of digital television from

transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium

came together in 1993.

The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [1].

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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

Modal verbs terminology

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

provisions).

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

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1 Scope

The present document describes the next generation transmission system for digital hybrid (combination of terrestrial

with satellite transmissions) broadcasting to handheld terminals. It specifies the differences of the Hybrid Profile

physical layer part to the physical layer part of the Base Profile ETSI EN 303 105-1 [1] from the input streams to the

transmitted signals. This transmission system is intended for carrying Transport Streams or generic data streams feeding

linear and non-linear applications like television, radio and data services. DVB-NGH terminals might also process

DVB-T2-lite signals.
2 References
2.1 Normative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

Referenced documents which are not found to be publicly available in the expected location might be found at

https://docbox.etsi.org/Reference/.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are necessary for the application of the present document.

[1] ETSI EN 303 105-1: "Digital Video Broadcasting (DVB); Next Generation broadcasting system to

Handheld, physical layer specification (DVB-NGH); Part 1: Base Profile".
2.2 Informative references

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

referenced document (including any amendments) applies.

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

their long term validity.

The following referenced documents are not necessary for the application of the present document but they assist the

user with regard to a particular subject area.
Not applicable.
3 Definition of terms, symbols and abbreviations
3.1 Terms

For the purposes of the present document, the terms given in ETSI EN 303 105-1 [1] apply.

3.2 Symbols

For the purposes of the present document, the symbols given in ETSI EN 303 105-1 [1] apply.

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3.3 Abbreviations

For the purposes of the present document, the abbreviations given in ETSI EN 303 105-1 [1] apply.

4 DVB-NGH hybrid system definition
4.1 System overview and architecture
4.1.1 Overview

The Hybrid Profile - reflected by the present document - specifies the hybrid signal format, composed of a component

coming from the terrestrial network, and an additional component, coming from the satellite. Hybrid signals according

to the NGH profile reflected by the present document include an additional P1 symbol (aP1, see ETSI

EN 303 105-1 [1], clause 11.8.3). The satellite component of the Hybrid Profile - reflected by the present document - is

defined for channel bandwidths 1, 7, 2 and 5 MHz (these three bandwidths are also covered by the Base Profile [1]).

Hybrid NGH signals can also be Base Profile compliant, in which case they are covered by ETSI EN 303 105-1 [1].

Besides defining the hybrid signals, the Hybrid Profile - reflected by the present document - defines moreover the

mechanisms to receive two signals simultaneously (one signal from a terrestrial transmitter and one from the satellite)

and to combine their outputs to a single stream.

Figure 1 represents the high level NGH physical layer block diagram of the Hybrid Profile - reflected by the present

document. Two chains are present, one for the terrestrial component and the other for the satellite component.

Compared to the Base Profile, the terrestrial and satellite chains of the Hybrid Profile - reflected by the present

document - present potential functional differences in the BICM, frame building and waveform generation. The system

architecture of the satellite component is that of the terrestrial component, with the possibility of replacing the OFDM

modulation block by the SC-OFDM modulation block, characterized additionally by the absence of particular functional

blocks as explained in clause 4.1. Time frequency slicing can be applied to both, the terrestrial and the satellite

components.
NOTE: Blocks differing from the Base Profile are shaded grey.
Figure 1: High level NGH physical layer block diagram of the Hybrid Profile
- reflected by the present document
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Both SFN and MFN configurations are possible for the Hybrid Profile - reflected by the present document. In the SFN

case, when the satellite and terrestrial components share the same frequency, the signal transmitted in the two

components shall be exactly the same. The system input(s) to the terrestrial and the satellite path may differ from each

other in the MFN case. In the MFN case, the system architecture of the Hybrid Profile of DVB-NGH - reflected by the

present document - is composed of two components: the terrestrial component, as specified in ETSI EN 303 105-1 [1],

and the satellite component, as represented in figure 1.

MISO in the Hybrid Profile - reflected by the present document - is applicable to OFDM only, to both, the terrestrial

and the satellite paths.

Table 1 indicates the allowed parameter settings for the Hybrid Profile - reflected by the present document. According

to it, the following hybrid cases can be devised:

• SFN, OFDM: The terrestrial network and the satellite share the same frequency and the same signal is

transmitted on the two components. The signal waveform is OFDM and the preambles of both components

consist of a P1 plus an aP1 symbol. The OFDM parameter set is applicable to both components, terrestrial and

satellite. Alternatively, the Base Profile could be adopted for both components. In that case the P1 part of the

preamble of both components consists of a P1 symbol only.

• MFN, OFDM: The satellite signal is transmitted on a different frequency, OFDM is used on both components.

The terrestrial component is transmitted according to the Base Profile, the satellite component according to the

OFDM settings listed in table 1. The preamble of the terrestrial component consists of a P1 symbol and the

preamble of the satellite component consists of a P1 plus an aP1 symbol.

• SFN, SC-OFDM: This case consists of the satellite coverage and of terrestrial gap fillers sharing the same

frequency of the satellite signal. The SC-OFDM settings are applicable to both components, terrestrial and

satellite. Preambles consist of P1 plus aP1 symbols for the satellite and the terrestrial component.

• MFN, SC-OFDM on the satellite component, OFDM on the terrestrial component: The terrestrial component

is configured in line with the Base Profile, the satellite component using the permitted SC-OFDM settings

outlined in table 1. The preamble of the terrestrial component consists of a P1 symbol and the one of the

satellite component of a P1 plus an aP1 symbol.

Table 1: Allowed parameter settings for the Hybrid Profile - reflected by the present document

Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Bandwidths 1,7 MHz X X
2,5 MHz X X
5,0 MHz X X
6,0 MHz
7,0 MHz
8,0 MHz
10,0 MHz
15,0 MHz
20,0 MHz
Constellations QPSK X X
16-QAM X X
64-QAM
256-QAM
FFT sizes 0,5k X
1k X X
2k X X
16k
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Parameters Hybrid waveform
Modulation OFDM SC-OFDM
Guard intervals 1/128
1/32 X X
1/16 X X
19/256
1/8 X
19/128
1/4 X
Preambles Single P1
P1 + aP1 X X
Pilot patterns Continuous
pilot symbols X
PP1 X
PP2 X
PP3 X
PP4 X
PP5 X
PP6
PP7
PP9 X
FEC code rates 1/5 (=3/15) X X
4/15 X X
1/3 (=5/15) X X
2/5 (=6/15) X X
7/15 X X
8/15 X X
3/5 (=9/15) X X
2/3 (=10/15) X X
11/15 X X
3/4 X X
MISO X
Time de-interleaver According to
size See note 2 clause 6.2 According to clause 6.2

NOTE 1: Not all parameter settings listed above can be combined with each other.

The exceptions are described in the following clauses.

NOTE 2: In situations where a receiver needs to time de-interleave both, the terrestrial

and the satellite signal, in parallel, limits for the time de-interleaver size
outlined in clause 6.2 apply to the combination of both signals, i.e. they
cannot simultaneously make use of the full specified time de-interleaver
memory size.
4.1.2 Bit-interleaved coding and modulation, MISO precoding

The block diagram, illustrating the functional differences in the BICM stage, is shown in figure 2. Further to the time

interleaving configurations of the Base Profile, the Hybrid Profile - reflected by the present document - allows a

concentration of cells at the end of the logical frame sequence over which a FEC block is spread (uniform-late

interleaving).
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NOTE: (*): Applicable to OFDM waveform only.
Figure 2: BICM of the Hybrid Profile - reflected by the present document
(applicable to the terrestrial and the satellite path)
4.1.3 Frame building, frequency interleaving

The block diagram, illustrating the functional differences in frame building stage, is shown in figure 3. This is the same

architecture as the Base Profile except for the allocation of space for the aP1 symbol. As far as the physical and the

logical framing is concerned, the same mechanisms are used for the terrestrial and satellite components. These

mechanisms are described in ETSI EN 303 105-1 [1], clause 9. The frequency interleaver is applicable to OFDM only.

Figure 3: Frame builder of the Hybrid Profile - reflected by the present document

(applicable to the terrestrial and the satellite path)
4.1.4 OFDM generation

The block diagram, illustrating the functional differences in the OFDM generation stage, is shown in figure 4. The only

functional difference is the insertion of the additional preamble symbol aP1, following the preamble symbol P1, as

specified in ETSI EN 303 105-1 [1], clause 11.8.3.
Figure 4: OFDM generation (applicable to the terrestrial and the satellite path)
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4.1.5 SC-OFDM generation

The block diagram, illustrating the SC-OFM generation stage, is shown in figure 5. The functional differences to the

OFDM generation are the additional spreading stage (see clause 8.1 below), a different pilot pattern, the absence of

continual pilots, the absence of edge pilots, the absence of a frame closing symbol (see annex A for the latter three), the

absence of PAPR reduction and the additional preamble symbol aP1 (specified in ETSI EN 303 105-1 [1],

clause 11.8.3). Furthermore, the number of sub-carriers per SC-OFDM symbol is even.

Figure 5: SC-OFDM generation (applicable to the satellite path only)
5 Input processing

Input processing follows the same mechanism as the Base Profile [1]. The compensating delay function enables the

end-to-end delay of services transmitted in both the terrestrial and satellite signals to be aligned. An important use case

for this is hybrid combining of a terrestrial and a satellite signal in a hybrid Multi-Frequency Network (MFN). For

instance, the terrestrial signal may use time interleaving of duration 1 s for the considered in

...

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