ETSI TS 103 434 V1.1.1 (2017-09)

Access, Terminals, Transmission and Multiplexing (ATTM); Transcoding of HD and UHD video over powerline network

DTS/PLT-00048

General Information

• Status: Published
• Publication Date: 10-Sep-2017
• Technical Committee: PLT - Powerline Telecommunications
• Current Stage: 12 - Completion
• Due Date: 04-Oct-2017
• Completion Date: 11-Sep-2017

Standards Content (Sample)

ETSI TS 103 434 V1.1.1 (2017-09)






TECHNICAL SPECIFICATION
PowerLine Telecommunications (PLT);
Transcoding of HD and UHD video over powerline network

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2 ETSI TS 103 434 V1.1.1 (2017-09)



Reference
DTS/PLT-00048
Keywords
powerline, VDSL2
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3 ETSI TS 103 434 V1.1.1 (2017-09)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 6
3 Abbreviations . 6
4 Video transcoding for Home PLT networks . 7
4.1 Introduction . 7
4.2 Powerline Home Networking . 8
4.3 Video transcoding for Home PLT networks . 8
5 MIMO-PLT . 8
6 Specifications of video Transcoding for PLT . 9
6.1 Introduction . 9
6.2 Use cases for transcoding . 9
6.3 Transcoding for local network . 9
7 Powerline HDMI® short range link . 10
7.1 Foreword . 10
7.2 Use cases of Powerline HDMI® short range link . 10
7.3 HDMI® over Powerline . 11
7.4 Specifications of Powerline HDMI® . 11
History . 16


ETSI

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4 ETSI TS 103 434 V1.1.1 (2017-09)
Intellectual Property Rights
Essential patents
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 (https://ipr.etsi.org/).
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.
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.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Powerline Telecommunications
(PLT).
The present document is for Gigabit Home Networking and includes Video Transcoding for UHD video for long range
PLT networks and short range based PLT links.
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

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5 ETSI TS 103 434 V1.1.1 (2017-09)
1 Scope
The present document focuses on Gigabit Home Networking for Very High Speed Internet video distribution using
video transcoding for the distribution of HD and UHD video streams over SISO and MIMO PLT networks [i.1].
The present document defines the transcoding of HD and UHD video for improvement of the house coverage of
powerline networks for existing or forthcoming new video services as streaming and VOD MIMO-PLT and filling the
gap between MIMO-PLT channels capacity and new services as UHD and HD video for forthcoming UHDTV, namely
transcoding of H264/AVC into HEVC/H265.
The SISO/MIMO Powerline networks channels have time varying capacities depending on noises, overage, range as
HD and UHD encoded in H264/AVC video streams have additional bit rate compared to stream [3], [4] encoded in
HEVC/H265, the usage of transcoding for video streaming over Powerline using SISO & MIMO PLT modems is
explored by testing.
The present document includes the technical specification for video transcoding and transportation standards impact on
Powerline Networks coverage and produce technical guidance to the Powerline telecommunication vendors to cope
with very high rate services over Powerline communication for the UHD and HD video transcoding coding.
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] Recommendation ITU-T H.265 (12/2016): "High efficiency video coding".
[2] Recommendation ITU-T H.264 (04/2017): "Advanced video coding for generic audiovisual
services".
[3] ETSI TS 101 154 (V2.2.1) (06-2015): "Digital Video Broadcasting (DVB); Specification for the
use of Video and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport
Stream".
[4] ETSI TS 101 154 (V2.3.1) (02-2017): "Digital Video Broadcasting (DVB); Specification for the
use of Video and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport
Stream".
ETSI

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6 ETSI TS 103 434 V1.1.1 (2017-09)
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.
[i.1] ETSI TR 101 562 (V1.1.1) (05-2011): "PowerLine Telecommunications (PLT); MIMO PLT
Universal Coupler, Operating Instructions - Description".
[i.2] ETSI TR 103 234 (V1.1.1) (12-2014): "Power Line Telecommunications; Powerline
recommendations for very high bitrate services".
[i.3] ETSI TR 103 343: "Power Line Telecommunications (PLT); Powerline HDMI® analysis for very
short range link HD and UHD applications".
[i.4] DIRAC.
NOTE: Available at http://www.bbc.co.uk/opensource/projects/dirac/.
3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AV Audio Video
AVC Advance Video Coding (H264)
BB Broad Band
CE Consumer Electronic
CEC Consumer Electronic Command
DCT Discrete Cosinus Transform
DSL Digital Subscriber Line
Gbps Giga bit per second
GOP Group Of Picture
HD High Definition
HDMI High Definition Machine Interface
HEVC High Efficiency Video Coding (H265)
HPNA Home Phone line Networking Alliance
I-UWB Impulsion based Ultra Wide Band
LDPC Low Density Parity Check
LVDN Low Voltage Distribution Network
MB-OFDM Multi-Band - Orthogonal Frequency-Division Multiplexing
MIMO Multiple Input Multiple Output
OFDM Orthogonal Frequency Division Multiplexing (Multi-carrier transmission)
PE Protective Earth
PHDMI Powerline High Definition Machine Interface
PLC PowerLine Communication
PLT PowerLine Telecommunication
PSD Power Spectral Density
PSNR Peak Signal to Noise Ratio
Rx Receiver port (Rx port)
SAD Sum of Absolute Differences
SISO Single Input Single Output
SSD Sum of Square Differences
STB Set-top-Box
STF Specialist Task Force
TC Technical Committee
ETSI

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7 ETSI TS 103 434 V1.1.1 (2017-09)
TS Technical Specifications
TV Television
Tx Transmitter port (Tx port)
UEP Unequal Error Protection
UHD Ultra High Definition
UHDTV Ultra High Definition Television
UWB Ultra Wide Band
UWB-I Ultra Wide Band Impulse
VOD Video On Demand
WLAN Wireless Access Network
4 Video transcoding for Home PLT networks
4.1 Introduction
The present document includes recommendations given in Technical Reports resulting from STF investigations made
during the over past 5 years (2012-2017) in ETSI TC PLT.
In the past, PLT systems used only one transmission path between two outlets. It is the differential mode channel
between the phase (or live) and neutral contact of the mains. These systems are called SISO (Single Input Single
Output) modems. In contrast, MIMO PLT [i.1] systems make use of the third wire, PE (Protective Earth), which
provides several transmission combinations for feeding and receiving signals into and from the LVDN (Low Voltage
Distribution Network).
This investigation on MIMO PLT channels and noises enlarge the throughputs of PLT networks allowing Gigabit
networks using MIMO PLT modems and is a major accomplishment for PLT technology.
TC PLT investigated the benefits of emerging technologies: the new generation of MIMO (Multiple Input-Multiple
Output) powerline telecommunication modems and new video codec HEVC/H265 [1].
The resulting of measurements exhibit the extension of a PLT network for video services when using HEVC as video
codec compared to H264/AVC [2], therefore the present document recommend the integration of a video transcoder in a
broadband gateway and the present document specify a real time video transcoding algorithm from H264 /AVC to
H265/HEVC for bit-rate reduction.
This investigation on video transcoding combined with MIMO PLT networks allows UHD video streaming [3] on
wireline and wireless networks.
For very high speed uncompressed video distribution on short range PLT links is also based on video transcoding using
wavelets.
This investigation is focussing on uncompressed video links as HDMI® ports for short range high speed links exploring
the gap between the PLT transmission and the video compression using JPEG2000 tandem schemes and joint source
and channel coding innovative processing schemes.
In 2010, ETSI Specialist Task Force (STF) collected all kind of MIMO channel properties in several European
countries. The measurement campaign and experimental results are documented in the technical report [i.1].
As in the STF 410 on PLT MIMO and following the objective of increasing the bit rate of PLT modems on Short Range
PLT links for PHDMI the UWB (Ultra Wide Band) using MB-OFDM and I-UWB have been investigated.
The present document address home wireline networks such as PLT, Coax and HPNA and also hybrid networks with
WLAN for lossless or visually lossless compression transmission.
ETSI

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4.2 Powerline Home Networking
Modern residential homes contain an increasing number of consumer electronic (CE) devices for communications and
entertainment, which should be interconnected among themselves and to the outside service providers that deliver
entertainment content, telecom services and Internet access.
Today, broadband residential services are delivered to homes by coaxial cable, twisted pair, or optical fibre. Regardless
of the access transmission media, the signal is terminated in the modem (DSL, cable, or Optical Networking Unit), and
a home owner or network installer can distribute the signal inside the home to connect various CE devices.
There are two kinds for home network technologies usually deployed in a house:
• Wired - communicates through data cables (most commonly Ethernet-based).
• Wireless - communicates through radio waves.
Wired Home Networks: A type local area networking technology which is based on a special type of cable which is
used to transfer data from one place to another in the form of analogue and digital signals, these cables are called as
coaxial cables.
In-home PLT is a technology which delivers telecom services to every corner of a household through already existing
electrical wiring. In recent years, PLC has emerged as a potential candidate for domestic high bit rate services.
The current in-home PLC technology, based on Single-Input Single-Output (SISO) configuration, under achieves the
capacity offered by the physical PLC channel. The in-home PLC channel offers multiple signal feed ports as, usually, it
comprises of three wires: Phase, Neutral and Protective Earth.
4.3 Video transcoding for Home PLT networks
The transcoding is the process that converts from one compressed bitstream (called the source or incoming bitstream) to
another compressed bitstream (called the target or transcoded bitstream).
The present document give specifications for two types of video transcoding for PLT networks [i.2] and [i.3]:
a) The transcoding of HD and UHD video streams from H264 /AVC to H265/HEVC for bit rate reduction as
measured in the tests performed in STF 468 and avoiding the cascading operations.
b) The transcoding of the uncompressed HD and UHD video decoded in H264 or H265 into visually lossless
JPEG2000 and DIRAC codec [i.4] for short range PLT links as Powerline HDMI® using UWB transmission.
The basic requirements in transcoding are:
• the information in the source bitstream should be exploited as much as possible;
• the quality of the transcoded video should be as high as possible, or as close as possible as if the original video
was encoded in the target format; and
• the transcoder complexity (delay, processing power and memory requirements) should be kept at minimum,
targeting real-time implementation.
5 MIMO-PLT
In powerline communications, the use of MIMO-PLT offer to Home Networking, several improvements over legacy
SISO powerline transceivers:
a) Increasing the coverage in a home or building.
b) The ability of MIMO signals to cross over to other phases in the electrical wiring increases coverage and
performance for many areas of the building.
c) Improving the throughput as MIMO is based on a highly optimized signal processing spatially multiplexed
signals over each port.
ETSI

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MIMO-PLT specifications are based on characteristics of multiple-input multiple-output (MIMO) PLT networking
transceivers
...