Additional Spectrum for HDTV and Mobile

Additional Spectrum for Mobile & HDTV Broadcasting : 

Additional Spectrum for Mobile & HDTV Broadcasting Tharaka Mohotty Director Engineering MTV/MBC Channels Sri Lanka ITU-ABU Workshop PJ Malaysia VHF-UHF Band Planning For DVB-T

Broadcasting Bands : 

Broadcasting Bands LF 144.5 – 283.5 KHz MF 526.5 – 1626.5 KHz HF 3 – 26 MHz FM 87 – 108 MHz TV/DAB/DMB 54 – 68 MHz 174 – 230 MHz TV/DVBT 470 – 860 MHz ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 2

Slide 3: 

TV Broadcast Spectrum 174 230 470 Frequency (MHz) 862 880 960 1710 1880 1980 2110 2170 2520 2670 Band III (VHF) Bands IV/V (UHF) GSM900 GSM1800 UMTS (3G) UMTS Expansion Current 2G and 3G Mobile Allocations (for comparison) 448 MHz in total Focus on UHF bands ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 3

Why additional spectrum required? : 

Why additional spectrum required? Additional frequency required for digital TV (DVB-T) transition For HDTV For Mobile TV ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 4

Who could use the spectrum dividend?-and how? : 

Who could use the spectrum dividend?-and how? Broadcasters More channels, new services Outside Broadcasts, Programme Making etc Mobile Operators voice, data, video, one-way, two-way? Who else? Fixed wireless access (Internet SPs etc) Emergency services ??? ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 5

Required Spectrum Bandwidth : 

Required Spectrum Bandwidth Transition period - 8MHz / channel HDTV - 20 Mbps / channel Mobile TV - 40 MHZ / Operator ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 6

The Best Possible Frequency Spectrum : 

The Best Possible Frequency Spectrum Considering the propagation characteristics the Best Spectrum 300 MHz – 1 GHz Also to consider 1452 – 1479.5 MHz Band for DVBH/ TDAB /TDMB ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 7

Present Spectrum Occupation & Its Future : 

Present Spectrum Occupation & Its Future Band I 54 – 68 MHz Most Countries does not have any transmissions But this is less attractive for the present requirement ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 8

Slide 9: 

Band II 87 – 108 MHz used for FM If FM replaced by DAB / DRM / DMB and if they move to Band II (216 – 230 MHz) or 1.5 GHz (1452 – 1479.5 MHz) ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 9

Slide 10: 

Band III 174 – 230 MHz Currently used for Analogue TV Planned to use part of this spectrum for DAB after Analogue switch over will be free ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 10

Using of New Bands : 

Using of New Bands IMT – 2000 has identified and proposed 410 – 430 MHz & 450 – 470 MHz as candidate Bands for Mobile services ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 11

Frequency availability with Analogue switch over : 

Frequency availability with Analogue switch over Its to be planned to release 630 MHz – 1 GHz For HDTV and to Mobile TV Mobile TV to use Band III or L Band ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 12

Spectrum Reframing: Things to consider : 

Spectrum Reframing: Things to consider “Re-farming” refers to change of use e.g. allow mobile transmissions in b/cast bands In principle, can support flexibility and facilitate convergence But, approach to re-farming should ensure existing flexibility is not compromised ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 13

Approaches to re-farming: : 

Approaches to re-farming: Use broadcast spectrum and technology to deliver multimedia content to mobile devices use existing planning approach and let market decide how spectrum dividend is used over time in each country Consider Cross Border Co - ordination ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 14

Open to Discussion …….. : 

Open to Discussion …….. Thank you! ITU-ABU Workshop PJ Malaysia Tharaka Mohotty 15