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DVB-SCENE Issue 20.Indd Edition No.20 December 2006 DVB-SCENE Tune in to Digital Convergence Tune Auf Wiedersehen Analogue 20 The Standard for the Digital World This issue’s highlights > DVB-T in Austria > MHP v1.1.2 Launches in Austria > Mobile Networks > Innovative Concepts > DTT Analysis: Eastern Europe > Market Watch DVB-SCENE : 02 1 1 3.0 .01010101111 . 00000000000000000 1 3.0 .010101011111B3.0. 3.0 .01010101111 00000000000000000 . 1011111DVB3.0. 3.0 .01010 MORE GOOD NEWS . A word from the DVB Project Office 00000000000000000 Peter MacAvock, Executive Director Peter MacAvock, Autumn and winter are typically busy The most notable announcement has months in the DVB Project, and this come recently from the Philippines 3.0 .010101011111DVB3.0. year is no exception. DVB’s General where industry and government 1 Assembly (3rd November 2006) heard are recommending the adoption 3.0 .01010101111 . 00000000000000000 that the DVB Project, now in its 13th of the DVB-T standards for DTT 1 year is organising more meetings services there. The Philippines 00000000000000000 3.0 .010101011111DVB3.0. than ever on topics such as DVB-H, currently uses NTSC in 6MHz 3.0 .01010101111 . IPTV, MHP, Copy Protection and many channels for broadcasting, and 3.0 .01010101111 00000000000000000 . 000000 others. In addition, DVB is currently their recommendation is a further DVB3.0. DVB3.0. investigating commercial requirements endorsement of the abilities of DVB-T. DVDVB3.0 for DVB-T2 - a specification destined We wish the Philippines well in their to exploit opportunities afforded by DTT future - and welcome them to the 1 1 010101010 analogue switch off in many countries family. Finally, I would like to wish all 100000.111111111111.000.1.1.1.1.0101010 3.0 .01010101111 . 00000000000000000 3.0 .01010101111 in the 2010 - 2012 timeframe. DVB participants and DVB-SCENE . Such work has attracted significant readers the compliments of the season DVB3.0. 00000000000000000 00000000000000000 interest in many countries around the and good luck for 2007 from all of us .01.111.0000010101010 world choosing their digital terrestrial on the DVB-SCENE editorial team and DVB3.0. 00000000000000000 3.0 .010101011111B3.0. television standards for the future. the DVB Project Office. The DVB Project Office organised a high 00000000000000000 level seminar at the AutoWorld car museum in Brussels in September. Titled ‘Driving 011111DVB3.0. DVB3.0. 3.0 .010101 Mobile Television’, the seminar aimed to . educate an audience of policymakers and 00000000000000000 regulators about the key issues facing . those planning to roll out DVB-H services DVB-SCENE : 03 3.0 .010101011111DVB3.0 in Europe in the short to medium term. DVB-PCM Chairman Helmut Stein (pictured right) chaired the day’s events, attended 00000000000000000 by more than 80 invited delegates. Also, pictured far right, from left to right, Alex 3.0 .010101011111DVB3.0. Mestre (Abertis Telecom), David Bogi (Mediaset), Juha Ronkainen (Nokia) and 00000000000000000 VDVB3.0. Peter MacAvock (DVB). D Dr Ian Childs attended the very first meeting of the Working Group on Digital Television Broadcasting (WGDTB) which took place in Hamburg in June 1992. He represented the BBC in this meeting and was immediately nominated one of the two vice-chairmen of the group. Since that very first event Ian attended most of the 75 meetings of the WGDTB which later became the DVB Technical Module. In the early days of the work it had to be decided whether or not hierarchical source coding would be used in order to facilitate the transmission of SDTV and HDTV video in one stream. Dr. Childs volunteered to evaluate the consequences of this decision. He found out that the overhead resulting from hierarchical source coding would be so significant that the simulcasting of SDTV and HDTV videos would be preferable. The ‘Childs factor’ thus became one of the fundaments of the work in DVB. In addition to being vice-chairman of the Technical Module Dr. Childs was its special rapporteur on audio. “With Ian’s retirement the Technical Module lost one of its key people and I lost an important advisor and a very good friend” commented Dr Ulrich Reimers, Chairman, DVB Technical Module on congratulating him on his nomination as the first Honorary Fellow of the DVB Project. (L-R: DVB Chairman Dr Theo Peek making the presentation to Dr Ian Childs.) NEW MEMBERS 2Wire Inc - Provides global telecom The views expressed in this newsletter are those All rights reserved. No part of this publication carriers with broadband service may be reproduced without prior consent of the of the individual DVB members or guests and platforms that enable an integrated are not necessarily the views of the DVB Project publisher. All content correct at time of printing. triple play of networked data, voice, and Office or Steering Board. © DVB-SCENE 2006. media services. www.2wire.com Published by the DVB Project Office, DVB and MHP are registered trademarks of the PT Comunicações – A subsidiary of c/o European Broadcasting Union, DVB Project. Certain other product names, brand Portugal Telecom and the largest fixed 17a Ancienne Route, names and company names may be trademarks or line and ADSL operator in Portugal. CH-1218 Grand Saconnex, Switzerland. designations of their respective owners. www.telecom.pt www.dvb.org, www.mhp.org & www.dvb-h.org To obtain extra copies of DVB Scene please contact towerCast - Owns and manages Editors: William Daly, Harold Bergin Eoghan O’Sullivan at [email protected]. hundreds of sites for radio Editorial and Advertising enquiries to: WHD PR Delivery charges will apply. broadcasting, digital TV, UMTS, Email: [email protected] Printed by Lithmark Limited. wireless local loop and professional Telephone: +44 (0)20 7799 3100 radio. www.towercast.fr DVB-SCENE : 04 BAND WHICH? UK Broadcast Networks for Mobile - What do we do? Simon Mason, Head of New Product Development, Arqiva One of the hottest topics at the moment (DSO). This is the process by which DDR may give clarity on the use of the in the industry is Mobile TV. Arqiva has the five existing analogue television released UHF spectrum by mid 2007, conducted a number of trials in the UK services are being switched off and the but there is no clear opportunity to get that show there is consumer demand six existing digital terrestrial television early access to this spectrum pre 2012. and that a broadcast one-to-many (DTT) multiplexes are changing L-Band technology will be required to deliver frequency and going up in power. The amount of L-Band spectrum on customer satisfaction. Ofcom, the UK regulator, estimates that offer is 40MHz (1452 - 1492MHz), but The main factors that will contribute up to 112MHz (or 14 x 8MHz channels) only the bottom 25MHz is available for to the success of Mobile TV are of spectrum in the UHF band will be use terrestrially, the upper 12.5MHz technology, handsets, spectrum released for new uses. This process being allocated for satellite systems. and regulation. In the UK, the most of switchover in the UK is aimed to be The Ofcom consultation regarding problematic element is spectrum. completed by 2012. this band closed in June 2006, and In terms of availability of suitable Frequencies in the UHF band released the terrestrial and satellite blocks are spectrum to be used for the delivery of by DSO are having their possible uses expected to be offered for auction in the Mobile TV services, UHF and L-Band reviewed through the Digital Dividend first half of 2007. L-Band is coordinated are the most obvious candidates for Review (DDR) run by Ofcom. The internationally via the Maastricht terrestrial based systems. This article looks at the options and Table 1 issues around spectrum in the UK for Mobile TV. Difference in dBs (positive value UHF Spectrum UHF L-Band The UHF band is the cream of UHF better than spectrum, because it offers a technically L-Band) valuable combination of capacity Frequency MHz 600 1470 (8MHz channel), small antenna on the Receive Antenna handset at a reasonable gain and good -6 -4 -2 propagation characteristics. The latter Gain dBd translates into reduced network density Channel width 8MHz 5MHz and therefore reduced deployment Height Loss -16 -20 4 costs. (10m to 1.5m) dB However, there is no guarantee of Penetration loss for getting this spectrum for Mobile TV; -12 -14 2 there are a number of services that sub urban dwellings could occupy this band such as more Number of channels 20 12 standard definition digital terrestrial Tx ERPs for a roof top 3kW 7.5kW -4 TV or new high definition TV services. (L-Band 3.0 dB greater) The UK, like many countries in Europe, is going through Digital Switchover Total difference 0 dB 1 1 3.0 .01010101111 . 00000000000000000 1 3.0 .010101011111B3.0. 3.0 .01010101111 00000000000000000 . 1011111DVB3.0. Plan, which gives the UK the right to higher density of sites to achieve the 3.0 .01010 deploy 1.7MHz channelised services necessary field strength. This means . in this band, but also requires 1.7MHz that services on adjacent channels that channelised services in neighbouring are not co-sited will knock holes in the countries to be protected. These rights network transmitted from another site. do not currently extend to services and Strict regulation could have helped to 00000000000000000 technologies other than those met by avoid this situation, however the UK the definition of T-DAB (or its variants regulator (Ofcom) with its light touch including T-DMB and DAB-IP). approach to regulations believes this is The key disadvantage of L-Band over an industry matter and therefore should UHF is the Doppler performance of L- be dealt with by the industry.
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