VHF/UHF frequency coordination Central America & Caribbean To secure the operation of broadcasting stations and benefit from the Digital Dividend Following the: With the participation of: Central American Summit on Digital Terrestrial Television and the Digital Dividend, El Salvador on 25 and 26 July 2016, and the San Salvador Declaration adopted by COMTELCA Members on 26 July 2016 CITEL COMTELCA CTU
Regional Frequency Coordination for Central America and Caribbean USA Considered area: Parallels : 122 to 50 W Meridians : 0 to 38 N BAH TCA MEX GTM SLV BLZ HON NCG CUB CYM JMC HTI ABW DOM PTR VIR KNA CUW VRG AIA ATG BLM MAF MSR DMA GLP MRT VCT LCA GRD BRB CTR PNR TRD VEN Numbers: Adm.: 30 Geographical area: 41 CLM B GUY SUR GUF Adm.: ATG, B, BAH, BLZ, BRB, CLM, CTR, CUB, DMA, DOM, F, G, GTM, GRD, GUY, HOL, HON, HTI, JMC, KNA, LCA, NCG, MEX, PNR, SLV, SUR, TRD, USA, VCT, VEN
Purpose of the frequency coordination meeting The Regional Frequency Coordination Meeting on the use of the VHF band (174-216 MHz) and the UHF band (470-790 MHz) is intended to : facilitate the processes of transition from analog to Digital Television (DTT) and allocation of the Digital Dividend, prevent the occurrence of harmful interference situations, is not intended to: conclude any formal agreement, but to build informal consensus in the Central American and Caribbean regions towards the conclusion of formal agreements between the administrations involved before formal notification of the relevant frequency assignments to the ITU.
Technical basis of the compatibility The meeting focuses on ensuring the compatibility of the national frequency plans in support of terrestrial television broadcasting and mobile broadband, taking into account: Existing analog television broadcasting emissions and broadband mobile transmissions, Current and future plans, if any, for DTT and Mobile Broadband, The need, where applicable, for simulcast digital and analog transmissions, The standards adopted at national level for DTT and Mobile Broadband, The timelines and activities for frequency assignment and planning.
BR proposed actions In order to provide support to the meeting, the ITU Radiocommunication Bureau provided the compatibility analysis software based on the Geneva 06 Plan, and suitably modified to take into account: channeling arrangements Used in the participating countries, standards and sharing criteria Training on the: Assist in the submission of that each of the participating countries may wish to retain for this compatibility exercise, compatibility analysis software and preparation of the electronic notices for the spectrum requirements and existing assignments, the spectrum requirements and existing assignments for the first compatibility iteration, Assessment of the results of the compatibility iteration and identification of issues to be resolved in subsequent iterations.
Proposed process Agreed assignments Notify under article 11 (WISFAT) Assistance to participants throughout the process, in the analysis and proposals to reduce potential interference. A new iteration every other week, Submission of the requirements by participants every other Monday, to BRBCD@itu.int Distribution to the participants of the compatibility analysis results on the following Monday, Compatibility analysis by the BR based on the submitted requirements and existing assignments
CA&C MIFR status DTV 470-698 DTV VHF CAC planning administrations: MIFR status - 19.10.2017 ATV 470-698 ATV VHF OPS 470-698 OPS VHF Bdw ATV Sys* DTV Sys* TV 698-806 OPS 698-806 GEO Adm ATG ATG 0 0 0 2 0 06M00 M T7 0 0 B B 6364 16 3148 1987 0 06M00 M T9 942 0 BAH BAH 0 0 0 0 0 06M00 M T9 0 0 BLZ BLZ 0 0 0 0 0 06M00 M T9 0 0 BRB BRB 0 0 0 1 0 16M00 M T7 0 0 CLM CLM 20 0 48 72 0 16M00 M T7 0 0 CTR CTR 0 0 0 0 0 06M00 M T9 0 0 CUB CUB 87 3 281 87 4 06M00 M U1 144 4 DMA DMA 0 0 0 0 0 06M00 M T7 0 0 DOM DOM 0 0 24 7 0 06M00 M T2 6 0 BLM F 6 0 2 1 0 06/8M00 K1 T1 3 0 GLP F 24 0 21 9 0 06/8M00 K1 T1 4 0 GUF F 40 0 17 9 0 06/8M00 K1 T1 3 0 MAF F 4 0 2 1 0 06/8M00 K1 T1 0 0 MRT F 40 0 21 9 0 06/8M00 K1 T1 8 0 AIA G 0 0 0 1 0 06M00 M T7 0 0 BER G 0 0 0 0 0 06M00 M T7 0 0 CYM G 0 0 0 0 0 06M00 M T7 0 0 MSR G 0 0 1 2 0 06M00 M T7 0 0 TCA G 0 0 0 0 0 06M00 M T7 0 0 VRG G 0 0 0 0 3 06M00 M T7 0 0 GRD GRD 0 0 0 0 0 06M00 M T7 0 0 GTM GTM 0 0 11 5 0 06M00 M T9 1 0 GUY GUY 0 0 15 16 0 56M00 D/M T7 0 0 HND HND 173 22 81 82 0 06M00 M T9 0 0 ABW HOL 0 0 0 1 0 06M00 M T7 0 0 BES HOL 0 0 0 1 0 06&8M00 M T1 0 0 CUW HOL 0 0 0 1 0 0 6&8M00 M T1/T6 0 0 SXM HOL 0 0 0 2 0 06&8M00 M T1/T6 0 0 HTI HTI 0 0 17 0 0 06M00 M T7 8 0 JMC JMC 0 0 0 25 0 06M00 M T7 0 0 KNA KNA 0 0 0 3 0 16M00 M T7 0 0 LCA LCA 0 0 0 0 0 06M00 M T7 0 0 MEX MEX 269 34 2 50 1133 726M00 M T2 0 0 NCG NCG 0 0 15 38 0 06M00 M T9 0 0 PNR PNR 0 0 0 7 1 06M00 M U0 0 0 SLV SLV 0 0 31 10 0 06M00 M T9 18 0 SUR SUR 26 8 1 3 0 06M00 M T2 0 0 TRD TRD 0 0 0 0 0 46M00 M T2 0 0 PTR USA 0 0 16 5 0 06M00 M T2 5 0 VIR USA 5 0 3 5 0 06M00 M T2 1 0 VCT VCT 0 0 0 6 0 06M00 M U0/T1 0 0 VEN VEN 0 0 43 61 0 06M00 M T9 21 0 Total GEO 43 Total Adm 30 13 GEO with no TV Assignment in the MIFR GEO with no TV assignments in the UHF-MIFR Total MIFR assign. 470-698 Total MIFR assign. 698-806 1168 MIFR data 1164 11999 6/8M00 VHF/UHF *: The corresponding TV standards can be found in Table 9.1 of Section 9 of the PREFACE
Technical criteria and assumptions Frequency bands DTT Standards ATV Systems FXM 174-216 MHz 8 MHz: DVB-T (T1), DVB-T2 (T6) M (525 lines/6 MHz) with NTSC color encoding FIXED Service 470-698 MHz 6 MHz: ATSC (T2), DVB-T2 (T7) ISDB-T (T9) DVB-T (U0), DTMB (U1). N (625 lines/6 MHz) with PAL color encoding (None in the considered area) MOBILE Service
Guatemala meeting 28.8-1.9.2017 Iteration(s) to assign frequency to Digital requirements in the UHF Band: ITU reference Compatibility (6 and 8 MHz) UHF Band Technical criteria Approval of the compatibility analysis assumptions taking into account the MIFR: - analogue and digital assignments; and - Digital requirements ITU-R Recommendations BT.417, BT.655-7, SM.851, BT.1306-7,BT.1368-12, BT.1877-1, BT.2033, BT.2036, BT.2383, P.1546 ITU-R Reports: BT.2254, BT.2383 DTV from DTV ATV from DTV DTV from ATV DTV from FXM MINIMUM FIELD STRENGTH (db(μv/m)) to be protected Protection Ratios for: co-channel, Adjacent channels (N-1 and N+1) and overlapping channels Follow up the work of Rapporteur Group of ITU-R WP6A (chaired by Brazil) Outcome from Rapporteur Group of ITU-R WP6A FXM from DTV Missing criteria, the worst case
Let s get started BT assignment from MIFR If no BT assignment in the MIFR BAH BLZ CTR CYM DMA The BR created requirements to reach: 4 layers in the UHF 2 layers in the VHF, based on: DOM GRD LCA TCA VRG
1 st meeting Managua 2017: Iterations to assign frequency to Digital requirements in the UHF(470-698 MHz): taking into account Only digital broadcasting assignments (MIFR and requirements). Bandwidth 6 and 8 MHz Flexible channels, i.e., the ITU software to scan the frequency band and provide the CA results. Proposed schedule for the CAC frequency coordination meeting 3rd meeting Panama May 2018: iteration to assign frequency channels for DTT in the bands VHF and UHF (174-216 MHz & 470-698 MHz) Only fixed channels for the requirements, Analogue/Digital assignments in the MIFR, and FXM assignments in the MIFR. Fixed Channels 2nd meeting: Guatemala August 2017: Iterations to assign frequencies to Digital requirements in the VHF and UHF( 174-216 MHz & 470-698 MHz), taking into account Analogue/Digital assignments in the MIFR, and Flexible channels. 4 th and last meeting to finalize the process Notification to the MIFR
CAC agreed coordination process An iteration every other Monday. Deadline of requirements submission: 18:00 GVA time; The notices and results of each iteration are published on the ITU web site. Notification email CA_compat in etools and CA Display take into account: 6/8 MHz bandwidth for DTT requirements; Analogue and Digital recorded assignments in the VHF (174-216 MHz).and UHF band (470-698 MHz). Digital television planning technical criteria and assumptions proposed by the BR are considered by ITU-R WP 6A for confirmation and completion. Administrations committed to notify the frequencies already operating in the VHF/UHF bands. A temporary deadline was proposed as 2 weeks before the next meeting
Conclusions of the 1 st and 2 nd frequency meetings From the previous experiences in the matter of support from the BR and ITU-R Study Groups. importance to achieve successful coordination/agre ements with the neighboring administrations; importance to inform about the intention, if any, to allocate the 600 MHz to the Mobile The meetings considered as steps forward to set the frequency coordination basis. The meeting recognized the: efforts made by the BR to provide technical criteria and software in a short time; need to harmonize, to the utmost possible, the use of the 700 MHz by the Mobile;
Statistics of UHF iterations so far 100% Percentage assignable channels 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Iteration1 Iteration7 Iteration13 Iteration 19
Number of replies: 23 (On 06.09.2017) Digital television Only Questionnaire on the use of VHF and UHF frequency bands analogue television Only Broadcasting only Both A&D No Broadcasting Mobile IMT Mobile (other than IMT) Fixed Service 174-216 MHz (current use) 3 10 5 3 0 1 1 4 174-216 MHz (future use) 15 0 1 1 0 1 1 2 470-698 MHz (current use) 0 2 8 4 3 10 7 13 470-698 MHz (future use) 9 0 0 2 8 7 5 10 698-806 MHz (current use) 0 6 0 11 15 3 2 3 698-806 MHz (future use) 0 0 0 18 23 2 2 4 Yes No but planned Not planned DTT in VHF 6 12 3 ATSC ISDB-T DTMB DVB-T 6 MHz DVB-T 8 MHz DVB-T2 6 MHz DVB-T2 8 MHz Adopted DTT standard 4 4 1 1 1 2 0 Completed Planned Not planned ASO 4 10 6 Yes, totally Yes partially Not started DSB implementation in VHF 0 2 20 Planned for the future 6 DAB/DAB+ DRM/DRM+ IBOC ISDB-TSB Other Adopted DSB standard 1 0 2 0 2 16 Other
Conclusions To avoid harmful interference Effective and harmonized use of the spectrum It is very important to coordinate the frequency to be brought into use with neighboring countries Mutual Discussions on current and future national plans
michele.coat@itu.int Thank you For your attention