DOCSLIB.ORG

Frequency and Network Planning Aspects of DVB-T2

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Frequency and Network Planning Aspects of DVB-T2 Report ITU-R BT.2254 (09/2012) Frequency and network planning aspects of DVB-T2 BT Series Broadcasting service (television) ii Rep. ITU-R BT.2254 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2012 ITU 2012 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without written permission of ITU. Rep. ITU-R BT.2254 1 REPORT ITU-R BT.2254 Frequency and network planning aspects of DVB-T2 DVB-T2 is a 2nd generation terrestrial broadcast transmission system developed by DVB project since 2006. The main purpose was to increase capacity, ruggedness and flexibility to the DVB-T system. The first version was published by ETSI as EN 302 755 in 2009. This Report provides guidance on frequency and network planning of DVB-T2. It has been developed by EBU Members involved in planning of DVB-T2 networks. It is intended to help broadcast network operators in their planning and administrations in defining the most suitable set of parameters from the large possibilities offered by the DVB-T2 system. In its present form, it has been published as EBU Tech 3348 ‘Frequency and network aspects of DVB-T2’. TABLE OF CONTENTS Page 1 Introduction .................................................................................................................... 6 1.1 Commercial requirements for DVB-T2 .............................................................. 6 1.2 DVB-T and DVB-T2; what is the difference? .................................................... 6 1.3 Notes on this Report ........................................................................................... 7 2 System properties ........................................................................................................... 8 2.1 Bandwidth ........................................................................................................... 8 2.2 FFT size .............................................................................................................. 8 2.3 Modulation scheme and guard interval ............................................................... 10 2.4 Available data rate .............................................................................................. 11 2.5 Carrier-to-noise ratio C/N ................................................................................... 13 2.5.1 Introduction .......................................................................................... 13 2.5.2 Methodology for the derivation of the C/N .......................................... 14 2.5.3 Common reception channels ................................................................ 14 2.5.4 C/N for Gaussian channel .................................................................... 15 2.5.5 C/N for Rice and Rayleigh channel ...................................................... 18 2.6 Rotated constellation .......................................................................................... 21 2.6.1 Concept ................................................................................................ 21 2.6.2 Constellation diagram .......................................................................... 21 2.6.3 Rotation of the constellation diagram .................................................. 22 2.6.4 Rotation angle ...................................................................................... 23 2 Rep. ITU-R BT.2254 Page 2.6.5 Time delay between I and Q ................................................................ 23 2.6.6 Improvement of performance ............................................................... 24 2.7 Scattered pilot patterns ....................................................................................... 25 2.7.1 Principle of scattered pilot pattern ....................................................... 25 2.7.2 Sample pilot pattern choices ................................................................ 27 2.8 Time interleaving ................................................................................................ 29 2.9 Bandwidth extension .......................................................................................... 30 2.10 Phase noise .......................................................................................................... 31 2.11 Choice of system parameters .............................................................................. 31 2.11.1 Choice of FFT size ............................................................................... 31 2.11.2 Selection of DVB-T2 mode for SFNs .................................................. 32 3 Receiver properties, sharing and compatibility, network planning parameters ............. 33 3.1 Minimum receiver signal input levels ................................................................ 33 3.2 Signal levels for planning ................................................................................... 34 3.3 Examples of signal levels for planning ............................................................... 35 3.3.1 DVB-T2 in Band III ............................................................................. 36 3.3.2 DVB-T2 in Band IV/V ......................................................................... 39 3.4 Protection ratios .................................................................................................. 42 3.4.1 Introduction .......................................................................................... 42 3.4.2 DVB-T2 vs. DVB-T2/DVB-T ............................................................. 42 3.4.3 DVB-T2 vs. T-DAB ............................................................................. 44 3.4.4 DVB-T2 vs. Analogue TV ................................................................... 44 3.4.5 DVB-T2 vs. LTE .................................................................................. 44 3.4.6 Protection ratios for DVB-T2 modes other than the reference mode .. 46 3.5 DVB-T2 equalisation interval, EI ....................................................................... 47 4 New planning features .................................................................................................... 50 4.1 SFN Extension .................................................................................................... 50 4.1.1 Introduction .......................................................................................... 50 4.1.2 Example 1: Rooftop Reception, SFN, Large Area, VHF ..................... 51 4.1.3 Example 2: Portable reception (with 64-QAM), SFN, Large Area, VHF ...................................................................................................... 52 4.1.4 Example 3: Portable reception, SFN, Medium Area, UHF ................. 54 Rep. ITU-R BT.2254 3 Page 4.1.5 Example 4: Portable reception, SFN, large area, UHF ........................ 56 4.2 Degradation beyond guard interval .................................................................... 58 4.2.1 Use of higher FFT modes ..................................................................... 58 4.3 MISO (multiple input single output) .................................................................. 60 4.3.1 General considerations ......................................................................... 60 4.3.2 Transmission parameter considerations ............................................... 62 4.3.3 Planning applications and considerations ............................................ 62 4.3.4 Qualitative description of the MISO gain ............................................ 63 4.3.5 Example of MISO coverage gain ......................................................... 64 4.4 Time-Frequency Slicing (TFS) ........................................................................... 65 4.4.1 TFS in the DVB-T2 standard ..............................................................
Load more

Recommended publications
  • DTT) Multiplex Licences Expiring in 2022 and 2026
    Consultation on the renewal of Digital Terrestrial Television (DTT) multiplex licences expiring in 2022 and 2026 18 December 2020 Department for Digital, Culture, Media and Sport Foreword By the Rt Hon. John Whittingdale OBE MP, Minister of State for Media and Data UK television audiences are fortunate to enjoy an incredibly broad range of programming and to possess a variety of methods by which to watch it. The Digital Terrestrial Television platform, better known as Freeview, is one of the most popular methods of accessing TV content in the UK. Since its launch in 1998 it has become one of the biggest and best-loved platforms, transmitting the nation’s favourite programmes to 18 million homes across the country. Freeview is also a vital part of the public service broadcasting (PSB) system, ensuring that PSB content is free at the point of use and widely accessible, with nearly 99% coverage across the UK. Public service broadcasting plays an important role in the economic, cultural and democratic life of our country; keeping people informed, educated and entertained. The value of PSB - and the Freeview platform that continues to underpin it - has been particularly evident during the Covid-19 pandemic, as an important source of news, in countering misinformation, and in bringing the nation together through shared moments. PSB and commercial content is provided on the Freeview platform through separate digital networks known as multiplexes, of which there are six nationally. Two of the national multiplex licences - Multiplex 2 and Multiplex A - are expiring in 2022. To renew these licences, the government is required to make secondary legislation.
    [Show full text]
  • Transmission System and Hardware
    ＤｉＢＥＧ Digital Broadcasting Experts Group Presentation 5 Digital Broadcasting Facilities and System Part 2 : Transmission System and Hardware October 15th, 2004 Digital Broadcasting Expert Group (DiBEG) Yasuo TAKAHASHI(Toshiba) 1 ＤｉＢＥＧ Digital Broadcasting Experts Group Contents 1. Comparison of Analog system and Digital System 2. Outline of Digital Transmission Network -Transmission network Chain -SFN transmission Network 3. Transmission System and Hardware -High Power Transmitter System -Micro-wave transmission Link -Trans-poser and new technologies -Peripheral 4. Antenna for Digital Broadcasting in Tokyo Tower 2 ＤｉＢＥＧ Digital Broadcasting Experts Group 1.Comparison of Analog System and Digital System (1)Differences of Transmitter Composition (2)Differences of Specifications 3 ＤｉＢＥＧ Digital Broadcasting Experts Group 1. Comparison of Analog system and Digital System(1/ ) （１）Differences of Transmitter Composition Transmitter composition is quite different. Video Video Video STL Exciter TX STL RF Antenna Term. Com- Audio Audio Audio biner Exciter TX (a) Analog High Power Transmitter block-diagram STL STL TS Digital Digital Antenna Term. Exciter TX (note) TS: transport stream (b) Digital High Power Transmitter block-diagram 4 ＤｉＢＥＧ Digital Broadcasting Experts Group (2) Differences of Specification (a)Required transmitting Power minimum required signal field strength of digital system is about 1/10 of analog system.( In Japan, 70dBuV/m for analog T V, 60dBuv/m for digital TV) Tokyo area key station: Analog system; 50kW VHF Digital system ; 10kW UHF (b) Frequency difference Frequency difference is critical for digital SFN network system 5 ＤｉＢＥＧ Digital Broadcasting Experts Group (c) Non-linear distortion In digital system Non-linear distortion of transmitter causes the inter-modulation products, and these products are fallen into the adjacent sub-channels.
    [Show full text]
  • Minimum Requirements for Dvb-T2 Set Top Boxes
    June 2014 MINIMUM REQUIREMENTS FOR DVB-T2 SET TOP BOXES Table of Content Symbols and Acronyms ........................................................................................................... 5 1 Introduction ..................................................................................................................... 7 1.1 Definitions ........................................................................................................................... 7 2 General Requirements .................................................................................................... 8 2.1 Electromagnetic compatibility, equipment security (EMC compatibility) ................. 8 2.2 Power Supply .................................................................................................................... 8 2.3 Identification of the equipment ....................................................................................... 8 2.4 Safety Requirements ........................................................................................................ 8 2.5 Support Package ............................................................................................................... 8 2.6 Power Supply Cord and Mains Plug .............................................................................. 8 2.7 Processor and Memory .................................................................................................... 9 2.8 Maintenance & Upgrade ................................................................................................
    [Show full text]
  • Compatibility and Sharing Analysis Between Dvb–T and Ob (Outside Broadcast) Audio Links in Bands Iv and V
    ERC REPORT 90 European Radiocommunications Committee (ERC) within the European Conference of Postal and Telecommunications Administrations (CEPT) COMPATIBILITY AND SHARING ANALYSIS BETWEEN DVB–T AND OB (OUTSIDE BROADCAST) AUDIO LINKS IN BANDS IV AND V Edinburgh, October 2000 ERC REPORT 90 Copyright 2000 the European Conference of Postal and Telecommunications Administrations (CEPT) ERC REPORT 90 Executive Summary This study assesses the compatibility between OB links and DVB–T in bands IV and V and determines the necessary separation distances between OB links and DVB–T as a function of frequency. The study takes account of three spectrum masks: the spectrum mask for sensitive cases according to the Chester Agreement, 19971 and the two spectrum masks recommended by SE PT 212. The results are only valid for the DVB–T and OB links system parameters given in this study. In order to establish if in a given set of circumstances: - the DVB-T service and - OB link usage at a given location are compatible, the relevant separation distances derived in Sections 2 and 3, must be examined. If both separation distances are respected, then usage is compatible. The main results of the study are as follows: • In most cases, Co-channel operation (frequency difference from 0 to 4 MHz between the centre frequencies) of DVB–T and OB links within a DVB–T coverage area will cause unacceptable interference to OB links and vice-versa. • For an operation of OB links in the 1st adjacent channel of DVB–T (frequency difference from 4 to 12 MHz between the centre frequencies), the necessary separation distances obtained in this study are quite large.
    [Show full text]
  • The Economics of Releasing the V-Band and E-Band Spectrum in India
    NIPFP Working Working paper paper seriesseries The Economics of Releasing the V-band and E-band Spectrum in India No. 226 02-Apr-2018 Suyash Rai, Dhiraj Muttreja, Sudipto Banerjee and Mayank Mishra National Institute of Public Finance and Policy New Delhi Working paper No. 226 The Economics of Releasing the V-band and E-band Spectrum in India Suyash Rai∗ Dhiraj Muttreja† Sudipto Banerjee Mayank Mishra April 2, 2018 ∗Suyash Rai is a Senior Consultant at the National Institute of Public Finance and Policy (NIPFP) †Dhiraj Muttreja, Sudipto Banerjee and Mayank Mishra are Consultants at the Na- tional Institute of Public Finance and Policy (NIPFP) 1 Accessed at http://www.nipfp.org.in/publications/working-papers/1819/ Page 2 Working paper No. 226 1 Introduction Broadband internet users in India have been on the rise over the last decade and currently stand at more than 290 million subscribers.1 As this number continues to increase, it is imperative for the supply side to be able to match consumer expectations. It is also important to ensure optimal usage of the spectrum to maximise economic benefits of this natural resource. So, as the government decides to release the presently unreleased spectrum, it should consider the overall economic impacts of the alternative strategies for re- leasing the spectrum. In this note, we consider the potential uses of both V-band (57 GHz - 64 GHz) and E-band (71 GHz - 86 GHz), as well as the economic benefits that may accrue from these uses. This analysis can help the government choose a suitable strategy for releasing spectrum in these bands.
    [Show full text]
  • Technical Review: Wib – a New System Concept for Digital Terrestrial Television (DTT)
    WiB – A New System Concept for Digital Terrestrial Television (DTT) 06 March 2017 E. Stare, J.J. Giménez, P.Klenner FOREWORD The main purpose of an EBU Technical Review is to critically examine new technologies or developments in media production or distribution. All Technical Reviews are reviewed by one (or more) technical experts at the EBU or externally and by the EBU Technical Editions Manager. Responsibility for the views expressed in this article rests solely with the author(s). To access the full collection of our Technical Reviews, please see: tech.ebu.ch/publications If you are interested in submitting a topic for an EBU Technical Review, please contact: [email protected] EBU Technology & Innovation | Technical Review | 06 March 2017 2 ABSTRACT Authors: E. STARE1, J.J. GIMÉNEZ2, P. KLENNER3 A new system concept for DTT, called “WiB”, is presented, where potentially all frequencies within the Ultra High Frequency (UHF) band are used on all transmitter (Tx) sites (i.e. reuse-1). Interference, especially from neighbouring transmitters operating on the same frequency and transmitting different information, is handled by a combination of a robust transmission mode, directional discrimination of the receiving antenna and interference cancellation methods. With this approach DTT may be transmitted as a single wideband signal, covering potentially the entire UHF band, from a single wideband transmitter per transmitter site. Thanks to a higher spectrum utilisation the approach allows for a dramatic reduction in fundamental power/cost and about 37 - 60% capacity increase for the same coverage compared with current DTT. High speed mobile reception as well as fine granularity local services would also be supported, without loss of capacity.
    [Show full text]
  • DVB-H Planning with ICS Telecom
    2 White Paper July 2006 DVB-H radio-planning aspects in ICS telecom Coverage Emmanuel Grenier Spectrum : COFDM SFN / MFN Convergence – back channel Software solutions in radiocommunications 3 Abstract This white paper addresses the problem of efficient planning DVB-H networks with ICS telecom. This document is intended for radio-planner, technical director, project manager, consultant to be aware of the important goals to pursue when planning a DVB-H network. It focuses not only on macro-scale DVB-H planning and its analysis on the geo-marketing point of view, but also provides methodologies for deep-indoor network densification, at the address level. The suggested methodologies are divided into three topics: Defining the coverage model : o by defining the right threshold for a given service class; o by densifying the DVB-H network in dense urban areas. Enhancing the business model according to technical inputs : o analyzing the impact of the chosen coverage model on the population; o ensuring interactive/billing service by complementing the DVB-H network with a cellular infrastructure. Analyzing the impact of the integration of a DVB-H service in the existing spectrum, as well as checking the COFDM interference areas for SFN networks. 4 Table of Content 1 Acronyms ___________________________________________________________________ 1 2 Coverage aspects _____________________________________________________________ 2 2.1 Cartographic data ________________________________________________________ 2 2.1.1 Cartographic environment for Macro-scale
    [Show full text]
  • Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on Behalf of the Satellite Industry Association1
    Spectrum & the Technological Transformation of the Satellite Industry Spectrum and the Technological Transformation of the Satellite Industry Prepared by Strand Consulting on behalf of the Satellite Industry Association1 1 AT&T, a member of SIA, does not necessarily endorse all conclusions of this study. Page 1 of 75 Spectrum & the Technological Transformation of the Satellite Industry 1. Table of Contents 1. Table of Contents ................................................................................................ 1 2. Executive Summary ............................................................................................. 4 2.1. What the satellite industry does for the U.S. today ............................................... 4 2.2. What the satellite industry offers going forward ................................................... 4 2.3. Innovation in the satellite industry ........................................................................ 5 3. Introduction ......................................................................................................... 7 3.1. Overview .................................................................................................................. 7 3.2. Spectrum Basics ...................................................................................................... 8 3.3. Satellite Industry Segments .................................................................................... 9 3.3.1. Satellite Communications ..............................................................................
    [Show full text]
  • The Future of Digital Terrestrial Television
    THE FUTURE OF DIGITAL TERRESTRIAL TELEVISION Purpose of this document This document sets out the BBC Trust’s response to the Ofcom consultation document on the future of digital terrestrial television (DTT). Context The Trust’s consideration of Ofcom’s proposals must take into account a number of different aspects of our remit: • Our duties under the BBC Charter and Agreement to act as guardian of the licence fee and the public interest, to represent the interests of licence fee payers and to exercise rigorous stewardship of public money • Our regulatory interest in ensuring the efficient use of spectrum by the BBC • Our regulatory obligations with respect to any ‘non-service’ application that might be made to the Trust by the BBC Executive This response has been prepared with each of those interests in mind. The Trust welcomes Ofcom’s consultation. As noted in our conclusions on the Public Value Test for the BBC Executive’s proposed high definition (HD) service, we would like to see the BBC’s HD service launched on Freeview as soon as possible. We also recognise that there are advantages, in terms of achieving the critical mass necessary for existing Freeview users to upgrade to HD-compatible equipment, in seeking ways to establish other PSB HD services on the DTT platform in a co-ordinated way. Ofcom shared this view in its MIA work, concluding that the Trust should: “…ensure that the launch of any BBC HD channel on DTT is considered in the context of the potential delivery of a wider range of HD services on DTT.
    [Show full text]
  • Digital Multi–Programme TV/HDTV by Satellite
    Digital multi–programme TV/HDTV by satellite M. Cominetti (RAI) A. Morello (RAI) M. Visintin (RAI) The progress of digital technology 1. Introduction since the WARC’77 is considered and the perspectives of future The significant progress of digital techniques in applications via satellite channels production, transmission and emission of radio are identified. Among these, digital and television programmes is rapidly changing the established concepts of broadcasting. multi–programme television systems, with different quality levels (EDTV, SDTV) and possible The latest developments in VLSI (very–large scale evolution to HDTV, are evaluated in integration) technology have significantly contrib- uted to the rapid emergence of digital image/video terms of picture quality and service compression techniques in broadcast and informa- availability on the satellite channels tion–oriented applications; optical fibre technolo- of the BSS bands (12 GHz and gy allows broadband end–to–end connectivity at 22 GHz) and of the FSS band (11 very high bit–rates including digital video capabil- GHz) in Europe. A usable channel ities; even the narrow–band terrestrial broadcast capacity of 45 Mbit/s is assumed, as channels in the VHF/UHF bands (6–7 MHz and 8 well as the adoption of advanced MHz) are under investigation, in the USA [1] and channel coding techniques with in Europe [2], for the future introduction of digital QPSK and 8PSK modulations. For television services. high and medium–power satellites, in operation or planned, the The interest for digital television in broadcasting receiving antenna diameters and multimedia communications is a clear exam- required for correct reception are ple of the current evolution from the analogue to reported.
    [Show full text]
  • Cisco Broadband Data Book
    Broadband Data Book © 2020 Cisco and/or its affiliates. All rights reserved. THE BROADBAND DATABOOK Cable Access Business Unit Systems Engineering Revision 21 August 2019 © 2020 Cisco and/or its affiliates. All rights reserved. 1 Table of Contents Section 1: INTRODUCTION ................................................................................................. 4 Section 2: FREQUENCY CHARTS ........................................................................................ 6 Section 3: RF CHARACTERISTICS OF BROADCAST TV SIGNALS ..................................... 28 Section 4: AMPLIFIER OUTPUT TILT ................................................................................. 37 Section 5: RF TAPS and PASSIVES CHARACTERISTICS ................................................... 42 Section 6: COAXIAL CABLE CHARACTERISTICS .............................................................. 64 Section 7: STANDARD HFC GRAPHIC SYMBOLS ............................................................. 72 Section 8: DTV STANDARDS WORLDWIDE ....................................................................... 80 Section 9: DIGITAL SIGNALS ............................................................................................ 90 Section 10: STANDARD DIGITAL INTERFACES ............................................................... 100 Section 11: DOCSIS SIGNAL CHARACTERISTICS ........................................................... 108 Section 12: FIBER CABLE CHARACTERISTICS ...............................................................
    [Show full text]
  • Expect More with Wabash Television (618) 665-3311 •
    Expect More with Wabash Television (618) 665-3311 • www.wabash.net 280 Escape TV (Marion & Clay SILVER - $37.98/mo. GOLD - $79.98/mo. Counties Only) (Includes Silver) 401 American Movie Classics HD # CHANNEL 403 Lifetime 100 Catch TV # CHANNEL HD Movie Network 611 101 Create TV (WSIU TV) 122 CNN 404 Turner Classic Movies 107 WTVW - Independent 123 Headline News 406 Bravo 617 108 WSIU - PBS 124 Fox News 640 407 Syfy 616 109 WGNA 127 truTV 634 408 WE 116 iOnTV 130 MSNBC 619 501 MTV 121 Weather Channel 641 131 Bloomberg TV 505 VH1 128 C-Span 132 Fox Business Network 635 509 CMT 129 C-Span 2 144 ESPNews 510 UP 133 Weather Channel (Salem 145 ESPN Classic NBC Sports Chicago 643 Customers Only) 146 ESPN2 638 (where available) 163 TBS 632 147 Fox Sports Central NBC SportsPlus Chicago 644 250 North Clay High School 148 ESPN 601 HD (where available) 251 North Wayne School 149 Fox Sports Midwest 630 252 Flora High School 150 Big Ten Network 600 261 QVC PLATINUM - $99.98/mo. 153 MLB 599 (Includes Silver & Gold) 262 HSN 157 Pursuit Channel 636 263 EVINE Live 158 Sportsman Channel 637 HD 272 TBN 160 TV Land # CHANNEL 273 Daystar 161 USA Network 620 126 The Blaze 276 EWTN 162 TNT 633 140 ESPNU 642 540 WNOI Radio 165 A&E 604 141 Golf Channel 645 166 Comedy Central 143 FXX 627 LOCAL NETWORKS 179 Hallmark Movies (Included in the Silver Package) 151 CBS Sports 628 & Mysteries 152 NFL Network 629 Clay & Marion Counties 180 The Cowboy Channel 104 KMOV - CBS 154 SEC Network 639 181 Lifetime 105 KSDK - NBC - St.
    [Show full text]