1、 ETSI TS 103 434 V1.1.1 (2017-09) PowerLine Telecommunications (PLT); Transcoding of HD and UHD video over powerline network TECHNICAL SPECIFICATION ETSI ETSI TS 103 434 V1.1.1 (2017-09)2 Reference DTS/PLT-00048 Keywords powerline, VDSL2 ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - F
2、RANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be
3、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,
4、 the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this
5、 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 Copyright Notification No part may be reproduc
6、ed 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 e
7、xtend to reproduction in all media. ETSI 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
8、oneM2M logo is protected for the benefit of its Members. GSM and the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 103 434 V1.1.1 (2017-09)3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g32.1 Normative
9、references . 5g32.2 Informative references 6g33 Abbreviations . 6g34 Video transcoding for Home PLT networks 7g34.1 Introduction 7g34.2 Powerline Home Networking . 8g34.3 Video transcoding for Home PLT networks . 8g35 MIMO-PLT 8g36 Specifications of video Transcoding for PLT 9g36.1 Introduction 9g36
10、.2 Use cases for transcoding . 9g36.3 Transcoding for local network 9g37 Powerline HDMI short range link . 10g37.1 Foreword 10g37.2 Use cases of Powerline HDMI short range link 10g37.3 HDMI over Powerline . 11g37.4 Specifications of Powerline HDMI . 11g3History 16g3ETSI ETSI TS 103 434 V1.1.1 (2017-
11、09)4 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:
12、 “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
13、, 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 in
14、clude 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 pre
15、sent 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 Netw
16、orking 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
17、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 ETSI TS 103 434 V1.1.1 (2017-09)5 1 Scope The present document focuses on Gigabit Home Networking for Very Hi
18、gh 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
19、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 noise
20、s, 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 Specification for the use of Video and Audio Coding in Broadcasting Applications based on th
21、e 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 ETSI TS 103 434 V1.1.1 (2017-09)6 2.2 Informative references References ar
22、e 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 hyper
23、links 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
24、 (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 Telecommuni
25、cations (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 Codin
26、g (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 li
27、ne 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 transmis
28、sion) 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 Squ
29、are Differences STB Set-top-Box STF Specialist Task Force TC Technical Committee ETSI ETSI TS 103 434 V1.1.1 (2017-09)7 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
30、 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
31、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 o
32、f 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
33、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
34、 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/
35、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 in
36、vestigation 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
37、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
38、 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 ETSI TS 103 434 V1.1.1 (2017-0
39、9)8 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
40、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 d
41、istribute 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 a
42、rea 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 househ
43、old 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
44、. 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)
45、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
46、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 transcod
47、ing 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 m
48、emory 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 M
49、IMO 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 ETSI TS 103 434 V1.1.1 (2017-09)9 MIMO-PLT specifications are based on characteristics of multiple-input multiple-output (MIMO) PLT networking transceivers capable of operating over premises powerline wiring. MIMO-PLT transceivers are able to transmit and/or rece
