PLANNING FOR THE FUTURE OF DVB-T2 TRANSMISSIONS IN TURKEY
IBRAHIM ILKER CUCIOGLUElectronic Engineer M.Sc.EE
Deputy General Manager (Technical)ANTEN A.Ş.
Digitag Workshop, 14.November.2013ISTANBUL
ANTEN A.Ş.(The DTT Network Operator)
• History (…. Current Situation)• TRT, Public TV, 1964
Terrestrial Broadcasting Network: Owned by TRT Managed by TRT
• Private (Commercial) Broadcasting, 1990Terrestrial Broadcasting Network:
-Powerful (National) < 15-20 staff/each Towers,stations,antenna systems…
-Others(Regional,Local), Service from venders <2-3 person subcontractors < 2-3
person• 2011, New Law « TV and Radio Broadcasting»
Switch to DTT Licencing for DTT
!- Terrestrial Broadcasting Network Operation (Whole Turkey, DTT)- One single company- Established by «National DTT licence holders»- Investment / Operation / Management
• 2012 (May) , Anten AS-Present status «National Broadcasters» 15 broadcaster- TRT, Public TV-16 shareholders
ADVANTAGESOF
ONE SINGLE OPERATOR MODELANTEN AŞ.
• The CAPEX (Investment costs) will be reduced• The OPEX (Operation costs) will be reduced• Will prevent waste of investment made by different companies/broadcasters• The same professional level of quality, technical standarts• Reduction of technical problems (interfences…)• Reduction of towers in site/ Gathering all systems in one tower• One single responsible/ respondent for RTUK • One single responsible/ respondent for Broadcasters
TASKS FOR ANTEN AS
1. DEPLOYMENT PROJECT2. TRIAL
DEPLOYMENT PROJECTFREQUENCY PLANNING BY RTUK
BASIC INFORMATIONS
▫ Mode : DVB-T2 ▫ Reception Target : Indoor reception▫ Coding : 64QAM▫ FEC : 2/3▫ Guard Interval : 19/256▫ FFT Size : 32K▫ Pilot Pattern : PP4▫ Channel Bandwidth : 27 Mbps
DEPLOYMENT PROJECTFREQUENCY/NETWORK PLANNING BY RTUK
BASIC INFORMATIONS
- 9 Mux (8 UHF, 1 VHF) planned- 7 Mux (UHF), Nationwide, tendered
- 1 Mux, TRT- 5 Mux, National Private- 1 Mux, Regionals,Locals
- 952 sites planned
!- LAWNATIONAL BROADCASTER
- 70% Population (Whole Country)REGIONAL BROADCASTER
- 70% Population (Whole Region)
MIN NETWORK (National)
379 SITE > 70 % POPULATION
DEPLOYMENT PROJECT
• 7 Mux / 379 Sites• DTT NETWORK PLANNING
• Head – End• National Broadcasters• Reginal ( 4 / Region) * 7• Local Broadcasters ( 7/ City) * 81
• Transmitter Sites
- Site Coordinates ( Frequency Plan by RTUK)- EIRP (Max) ( Frequency Plan by RTUK)- Tower Heights (Max) ( Frequency Plan by RTUK)
Tranmitter Powers, Antenna Sytems,Combining Systems,Energy Lines, Buildings ,
Site Communication/Management Systems,Redundancy……..
DEPLOYMENT PROJECT
• 7 Mux / 379 Sites• DTT NETWORK PLANNING
• MANAGEMENT / OPERATION• Optimized management model defined• Employee, quantity, qualification defined•
• CAPEX , Investment Costs• OPEX, Operation Costs
• Site Serveys, in operation• Existing Sites (Stations: Towers, antenna systems, buildings,energy…..)• New Sites
TRIAL
City : Ankara (Capital City)Population : 4.6mArea : 2.516km2
Planned Site : 4Planning Mode : SFNArea Definition : Urban
No sea, no river Surrounded by mountains Higher buildings
concreat glass covered buildings
Rural Area (Far from downtown, in coverage) Close to co-channel interference Not so huge as Istanbul for traffic / easy to measure
Enough SFN site (not few, not many) Existing stations Possibility to use R/L or fiber distribution instead of satellite
TRIAL
Trial Project Prepared Site : 3 existing ( Planned : 4)
Avaliable capacity in existing stationsSimulations: Coverage & Interference Mux : 2 HD, 5 SD : 27 MbpsDistribution : Satellite
Measurement : 2 set of measurement equipments - Vehicle : Outdoor measurement - Portable : Outdoor / Indoor measurement
TRIAL
Outdoor Measurement / Vehicle
Indoor Mesurement / Portable
Set-Top-Box Monitor
GPS
TV ANALYSER
2m
TRIAL
Outdoor Measurements : Coverage, Signal Field Strength
Indoor Measurements : Indoor Reception
Homogeneously Ankara Ground Floor → Top Different Points in a room Same axis / Opposite axises
Report is in process
CONCLUSIONS
Trial Quite Succesfull , some changes in power levelsGap FillersMobile < 50 kmphEvaluation / RTUK
Antenna Set Top Box !
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