4 : ATSC 3.0 UHD, HD, (Chang Ho Seo et al.: A Study on Delivery Integration of UHD, Mobile HD, Digital Radio based on ATSC 3.0) (Regular Paper) 24 4,
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1 (Regular Paper) 24 4, (JBE Vol. 24, No. 4, July 2019) ISSN (Online) ISSN (Print) ATSC 3.0 UHD, HD, a), a), b), c), d) A Study on Delivery Integration of UHD, Mobile HD, Digital Radio based on ATSC 3.0 Chang Ho Seo a), Yoon Hyeock Im a), Sung Ho Jeon b), Jae Hyun Seo c), and Seong Jhin Choi d) UHD ATSC 3.0. ATSC 3.0 HD,,. (6MHz) ATSC 3.0 UHD, HD,, (UHD, HD, ),. Abstract In this paper, the technology verification of next generation broadcasting technology and service suitable for domestic broadcasting environment was carried out to build and activate domestic terrestrial UHD broadcasting. ATSC 3.0-based mobile HD broadcasting is currently conducting experiments with various parameters from broadcasting companies, research institutes and others. However, experiments on integrated transmissions, including audio services, have not been carried out. Through this experiment, we first performed the theory and experiment on the maximum number of ATSC 3.0 based UHD broadcasting service, maximum service number of HD broadcasting considering mobility, and maximum service number of audio broadcasting within one channel (6MHz). Second, parameters for integrated transmission of each service (UHD broadcasting, mobile HD and audio broadcasting) in one channel were derived. Finally, we studied technical possibilities through field tests that we receive while moving directly in the field. Keyword : ATSC 3.0, UHD, Mobile HD, Digital Radio, Delivery Integration Copyright 2016 Korean Institute of Broadcast and Media Engineers. All rights reserved. This is an Open-Access article distributed under the terms of the Creative Commons BY-NC-ND ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited and not altered.
2 (JBE Vol. 24, No. 4, July 2019) UHD. RF IP, TIVIVA.., IP. TV, PC. 10,. UHD. UHD HD , 2 HD [1]. ATSC 3.0 HD HD-DMB HD, [2]. HD,,. UHD HD UHD. 6[MHz] ATSC 3.0 UHD, HD,, (UHD, HD, ).. [3] UHD ATSC ATSC 3.0 MPEG-H. DTV CH50(689MHz), DTV CH51 (695MHz), T-DMB 12A(205.28MHz), 1. a) (Korea Radio Promotion Associationg) b) (Korea Broadcasting System) c) (Electronic Telecommunication Research Institute) d) (Seoul National Univ. of Science and Technology) Corresponding Author : (Seong Jhin Choi) ssjchoi@seoultech.ac.kr Tel: ORCID: Manuscript received April 19, 2019; Revised June 12, 2019; Accepted June 12, Table 1. Transmitting station specification transmitting station name Jeju techno park longitude latitude transmitting station altitude antenna height (E) (N) 357M 21M
3 ATSC 3.0 TV 2 USB [4][5] PC, RF. ATSC , 1, 3 UHD, ATSC 3.0 [6] ATSC 3.0 (UHD, HD, ),, (DMB, ),, 3. UHD, HD,., FM T-DMB [7]. 83.4km ATSC 3.0,,, CNR 1), MER 2), FEC 3). 3. UHD HD Table 3. Comparison between Fixed UHD and fixed HD service specification Division UHD DTV Resolution 3840x x1080 Frame rate 60 Hz 30 Hz Video compression HEVC MPEG-2 Audio compression MPEG-H AC-3 Transmission rate 11.5 Mbps 17.4 Mbps 2. Table 2. Field test profile Test frequency UHF CH50 Control Signal PLP Signal Receive service channel Audio Broadcasting 3 channel Mobile HD 1 channel Fixed UHD 1 channel transmission parameter Preamble FFT Size Preamble Pilot Dx 4 Subframe #0 Subframe #1 Subframe #2 PLP #0 PLP #1 PLP #2 L1-Detail FEC Type Mode 1 FFT Size 8K 8K 32K Guard Interval 6_1536 6_1536 6_1536 Scattered Pilot Pattern 4_2 4_2 16_2 QPSK 16QAM 256QAM Code rate 8/15 8/15 7/15 FEC Type BCH + 16k LDPC BCH + 16k LDPC BCH + 64k LDPC TI Mode CTI CTI CTI CTI Depth Transmission capacity 645 kbps 2.07 Mbps 11.8 Mbps 8K 1) CNR(Carrier To Noise Ratio, ) :. (db). 2) MER ( Error Ratio, ) :, 3) FEC(Forward Error Correction, ) :,
4 (JBE Vol. 24, No. 4, July 2019) 4. HD HD-DMB Table 4. Comparison between Mobile HD and HD-DMB service specification Division Mobile HD HD-DMB Resolution 1920x x720 Frame rate 60 Hz 30 Hz Video compression HEVC HEVC Audio compression MPEG-H BSAC Transmission rate 2 Mbps 0.5 Mbps 5. T-DMB Table 5. Comparison between radio and T-DMB audio service specification Division Radio T-DMB Audio Audio compression MPEG-H BSAC Transmission rate 128 kbps(64kbps 2 L, R). 64 kbps(32kbps 2 L, R) ATSC 3.0 UHD, HD,, LLS,. DMB, ESR5. FM ESR5. 1. ATSC 3.0 FM DMB ( ). FM DMB CNR(dB) (kbps). 6. FM DMB Table 6. Reception performance and transmission rate of FM and DMB Service Reception performance transmission rate Note FM radio 0dB 96kbps converting into digital Low quality DMB High quality DMB 6.4dB 1.2Mbps EEP 3-A 1/2 standard, radio installation rule 8.0dB 2Mbps EEP 3-B 2/3 standard 120 MODCOD 4) A/327 5),. FM, DMB, DMB MODCOD. MODCOD (Multiplexing) (kbps), MODCOD. PLP IP IP, 64 (6MHz) 64. UHD,,. 1 ATSC 3.0. UHD, HD,,, LLS. 4) MODCOD : MOD(, ), COD(Code Rate, ) 5) A/327:2018, GUIDELINES FOR THE PHYSICAL LAYER PROTOCOL
5 7. UHD Table 7. Terrestrial UHD transmission parameter combination Preamble Parameters Frame Length around 250ms (Including Bootstrap) Bandwidth 6 MHz FFT Size choice among 8K, 16K and 32K Guard Interval GI5_1024, GI6_1536, GI7_2048 Pilot Pattern decision automatically depending on FFT size and Guard Interval Signaling Protection L1-Basic / Detail Mode 1 # of Preamble Symbols calculate automatically by precede parameters Reduced Carriers 0 2. FM, DMB, DMB [8] MODCOD ATSC 3.0 UHD, HD, 1. ATSC 3.0 Fig. 1. System block diagram for aggregated transmission experiment based on ATSC Table 8. Basic assumption of each parameter for theory analysis Division FFT Size Guard Interval LDPC Size Outer Code Preamble mode Maximum physical layer channel number in a channel Frame Length Basic assumption of each parameter Mobile reception : 8K, indoor reception : 16K, fixed reception : 32K It is preferable to use GI6_1536 (222μs, 66.6km) when constructing single frequency network (SFN) for each broadcasting area (city / province area) considering the maximum transmitter spacing in Korea (Note) As of November 2018, all three terrestrial broadcasters in the Seoul metropolitan area used GI6_1536. In case of T-DMB, 246μs (maximum transmitter spacing of 73.7km) is being used Blocks for main service of mobile reception Blocks for fixed reception For robust reception, consider the BCH code as the basis the BCH+LDPC configuration is basic. For L1-Basic / L1-Detail Signaling, Mode 1 is considered as the basis for receiving robust control information physical layer multiplexing is possible the maximum 64 as per A/322 standard It is possible to set up to 5 seconds. However, when it is desirable to operate at 200 ms level considering the switching time between channels, the frame length mode uses symbol-aligned (L1B_frame_length_mode = 1)
6 (JBE Vol. 24, No. 4, July 2019). (6MHz). 8 [9]. 2.1 ATSC 3.0 ATSC 3.0 FM T-DMB (FM ) MODCOD LDPC, ATSC 3.0 ToV CNR 6) 6.4dB MODCOD. 9. ATSC 3.0 Table 9. Condition for transmission parameter organization of ATSC 3.0 audio single service Division Main facts Minimum service quality more MPEG-H Broadcasting service area ToV CNR (good watching minimum S/N ratio) below 6.4 db equal to or more T-DMB audio service 10. ToV CNR(dB) Table 10. ToV CNR(dB) Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM ( ) A/ LDPC AWGN 11. 6MHz (Mbps) Table 11. Total transmission rate in 6MHz Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM FFT Size : 8K / GI6_1536 / SP4_2 12. Table 12. Maximum number of service Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM ) ToV CNR :
7 2.2 ATSC 3.0 HD ATSC 3.0 HD HD-DMB MODCOD,. 13. ATSC 3.0 HD Table 13. Condition for transmission parameter organization of ATSC 3.0 mobile HD single service Division Minimum service quality Broadcasting service area Main facts more MPEG-H, 1080p60Hz ToV CNR good watching minimum S/N ratio) below 8.0dB equal to or more HD-DMB high quality service 14. ToV CNR(dB) Table 14. ToV CNR(dB) Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM ( ) A/ LDPC AWGN 15. 6MHz (Mbps) Table 15. Total transmission rate in 6MHz Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM FFT Size : 8K / GI6_1536 / SP4_2 16. Table 16. Maximum number of service Code Rate (16200 LDPC, AWGN) QPSK QAM QAM QAM / : MODCOD
8 (JBE Vol. 24, No. 4, July 2019) 2.3 ATSC 3.0 UHD ATSC 3.0 UHD, DTV(ATSC 1.0) MODCOD. 17. ATSC 3.0 UHD Table 17. Condition for transmission parameter organization of ATSC 3.0 fixed UHD single service Division Minimum service quality Broadcasting service area more MPEG-H, 2160p60Hz Main facts ToV CNR (good watching minimum S/N ratio) below 14.9 db equal to or more ATSC 1.0 HDTV 18. ToV CNR(dB) Table 18. ToV CNR(dB) QPSK QAM QAM QAM QAM QAM ( ) A/ LDPC AWGN 19. 6MHz (Mbps) Table 19. Total transmission rate in 6MHz QPSK QAM QAM QAM QAM QAM FFT Size : 32K / GI6_1536 / SP16_2 20. Table 20. Maximum number of service QPSK 16QAM QAM QAM QAM QAM
9 (6MHz) (UHD : HD : = X : Y : Z)., 100% UHD X%, HD Y%, Z%. 6MHz (Mbps) DTV(ATSC1.0) 100% RF UHD 23.32Mbps. X% UHD KBS Mbps, 21 RF 50%, KBS2 KBS1 KBS2 17.0Mbps RF 73%. HD (Mbps), HD-DMB 100% RF HD 9.83Mbps. UHD Y% 2.0Mbps 21. ATSC 3.0 UHD Table 21. Minimum allocation rate of UHD service for ATSC 3.0 mixed transmission Service Signal quality Maximum transmission rate Allocation formula Minimum allocation rate UHD (KBS1 criterion) 11.5Mbps 23.32Mbps X 11.50/23.32 = % UHD (KBS2 criterion) 17.0Mbps 23.32Mbps X 17.00/23.32 = % 22. ATSC 3.0 HD Table 22. Minimum allocation rate of mobile HD service for ATSC 3.0 mixed transmission Maximum transmission Minimum Service Signal quality Allocation formula rate allocation rate Mobile HD 2.0Mbps 9.83Mbps Y 2.0/9.83 = % 23. ATSC 3.0 Table 23. Minimum allocation rate of audio service for ATSC 3.0 mixed transmission Maximum transmission Minimum Service Signal quality Allocation formula rate allocation rate Audio 192kbps 8.08Mbps Z 0.192/8.08 = % 2. ATSC 3.0 Fig. 2. Minimum allocation rate and frame structure for ATSC 3.0 mixed transmission
10 (JBE Vol. 24, No. 4, July 2019) RF 21%. 6MHz (Mbps), T-DMB 100% RF 8.08Mpbs. Z% 192kbps RF 3%. ATSC 3.0 UHD, HD, 2 UHD 50%, HD 21%, 3%. 3.2 (UHD 50%, HD 21%, 3% ) ATSC 3.0 UHD 25 MODCOD UHD (11.5Mbps ) 1. ATSC 3.0 HD 26 MODCOD HD 16-QAM, 9/15(45%) 2, HD (2.0Mbps ) ATSC 3.0 Table 24. Combinations of each service for ATSC 3.0 mixed transmission UHD 50% criterion UHD 60% criterion UHD 70% criterion Case 1 X:Y:Z = 50:25:25 Case 4 X:Y:Z = 60:25:15 Case 2 X:Y:Z = 50:35:15 Case 3 X:Y:Z = 50:45:5 Case 5 X:Y:Z = 60:35:5 Case 6 X:Y:Z = 70:25:5 25. ATSC 3.0 UHD MODCOD Table 25. MODCOD Combinations of UHD service for ATSC 3.0 mixed transmission X=70% 13 X=60% 6 X=50% 1 QPSK 16QAM QAM QAM QAM QAM QPSK 16QAM QAM QAM QAM QAM QPSK 16QAM QAM QAM QAM QAM
11 26. ATSC 3.0 HD MODCOD Table 26. MODCOD Combinations of mobile HD service for ATSC 3.0 mixed transmission Y=45% 15 Y=35% 11 Y=25% 4 QPSK QAM QAM QAM QPSK QAM QAM QAM QPSK QAM QAM QAM ATSC 3.0 MODCOD Table 27. MODCOD Combinations of audio service for ATSC 3.0 mixed transmission Z=25% 24 1~10 CH Z=15% 10 1~6 CH Z=5% 4 1~2 CH QPSK QAM QAM QAM /15 3/15 4/15 5/15 6/15 7/15 8/15 9/15 10/15 11/15 12/15 13/15 QPSK QAM QAM QAM /15 3/15 4/15 5/15 6/15 7/15 8/15 9/15 10/15 11/15 12/15 13/15 QPSK QAM QAM QAM ATSC MODCOD (0.192Mbps ) ATSC 3.0 MODCOD KBS. KBS UHD 2 (KBS1 52, KBS2 56 ) 6, DMB KBS KBS1 52 KBS2 56 UHD 1 +DMB
12 (JBE Vol. 24, No. 4, July 2019) X_UHD : Y_ HD : Z_ = 60% : 25% : 15% UHD X=60% QPSK 16QAM QAM QAM QAM QAM K-FFT, 256QAM, 7/15 = 11.8Mbps Mobile HD QPSK Y=25% 16QAM QAM QAM K-FFT, 16QAM, 8/15 = 2.18Mbps Audio Z=15% QPSK QAM QAM QAM K-FFT, QPSK, 8/15 = 0.654Mbps(218kbps 3) KBS UHD 1 +DMB X_UHD : Y_ HD : Z_ = 60% : 25% : 15% UHD X=60% 2/15 3/15 4/15 5/15 6/15 7/15 8/15 9/15 10/15 11/15 12/15 13/15 QPSK 16QAM QAM QAM QAM QAM k-FFT, 256QAM, 7/15 = 11.8Mbps Mobile HD Y=25% 2/15 3/15 4/15 5/15 6/15 7/15 8/15 9/15 10/15 11/15 12/15 13/15 QPSK QAM QAM QAM K-FFT, 16QAM, 8/15 = 2.18Mbps Audio Z=15% 2/15 3/15 4/15 5/15 6/15 7/15 8/15 9/15 10/15 11/15 12/15 13/15 QPSK QAM QAM QAM K-FFT, 16QAM, 8/15 = Mbps(190kbps 6)
13 X_UHD : Y_ HD : Z_ = 50% : 45% : 5% UHD X=50% QPSK 16QAM QAM QAM QAM QAM K-FFT, 64QAM, 11/15 = 11.66Mbps Mobile HD Y=45% QPSK QAM QAM QAM K-FFT, 16QAM, 4/15 = Mbps(2.2Mbps 2) Audio Z=15% QPSK QAM QAM QAM K-FFT, 64QAM, 5/15 = 0.404Mbps(202kbps 2) KBS UHD 1 +DMB DMB ATSC 3.0 ATSC 3.0. HD-DMB Rohde&Schwarz SFU ETL. KBS ATSC 3.0, RTP 7) UDP 8) IP 9), ATSC 3.0 RF ATSC 3.0,. 7) RTP(Real-Time Transport Protocol, ) :, (RSVP). 8) UDP(User Datagram Protocol, ) : TCP/IP. TCP/IP (OSI 3 ) IP (OSI 4 ) (TCP) (UDP). 9) IP(Internet Protocol, ) : OSI 3 ( ), TCP/IP.
14 656 방송공학회논문지 제24권 제4호, 2019년 7월 (JBE Vol. 24, No. 4, July 2019) 후 서비스 리스트(A1, A2, A3, HD, UHD)가 정상 수신되는지 확인하였다. 그리고 각 수신기들의 서비스 리스 트에 나와 있는 서비스를 각각 선택하여 서비스들이 정상적 으로 디코딩되는지 확인하였다. 마지막으로 실내 수신기의 오디오서비스 디코딩 시 화면에 오디오서비스 표기가 나오 는지 확인하였으나, 실내 수신기 1대만이 화면에 현재 채널 은 오디오 전용으로 영상신호가 제공되지 않습니다. 라고 표시되는 것을 확인하였다. 나머지 수신기들은 검은 화면이 나 마지막 디코딩 영상이 정지영상으로 표시되었다. Locking 5.2 이동수신 실험 이동수신 측정은 제주특별자치도 제주시 일대 83.4km를 ATSC 3.0 이동수신 측정차량을 이용하여 고속(100km 이 Check the service list from indoor receiver 내), 저속(60km 이내)으로 이동하며 수신레벨, CNR, MER, FEC 등의 수신데이터를 측정하였다. 디지털융합센터에서 400W 출력으로 UHF CH 50번(중심주파수=689MHz)으로 송신한 결과 표 28과 같이 이동수신 결과가 측정되었다. 그림 4와 같이 한라수목원 인근의 민오름 뒤편인 신제주 권과 낮은 지반으로 이루어진 구도심 일부지역에서 수신레 벨이 낮게 나왔으나, 그 외의 지역에서는 전반적으로 고르 게 수신레벨이 측정됨을 알 수 있었다. 반송파 대 잡음비도 수신레벨과 비례하게 수신레벨이 낮은 지역이 낮게 측정되 었다. 제어신호의 수신율을 볼 수 있는 Preamble MER도 수신레벨이 낮게 측정된 지역과 비례하게 측정되었음을 알 수 있다. 그림 5에서 알 수 있듯이 MER이 낮게 수신되어도 FEC Check the service from indoor receiver Check audio service decording from indoor receiver 그림 3. 실내수신 실험 결과 Fig. 3. Experiment result from indoor receiver 표 28. 측정 결과 Table 28. Measurement results PLP0 measurem measurem ent Average Average Average ent point Distance Level CNR P.MER Maximum Average number FEC MER (km) , receive level measurement - dbm PLP1 Good rate (%) Maximum Average FEC MER carrier to noise ratio - CNR 그림 4. 이동수신 시 수신레벨, 반송파대 잡음비, MER 측정 결과 Fig. 4. Receive level, CNR, MER measurement results from mobile receiver 17 PLP2 Good rate (%) Maximum Average FEC MER 753 Preamble MER 17 Good rate (%) 16.94
![M. Kim, Y. S. Kim, Trial Service Status for Terrestrial UHD Mobile Broadcasting, Korea Society Broadcast Engineers Magazine, Vol. 23, No. 2, pp. 43-57, 2018. [2] ATSC, http://www.atsc.](/docs-images/102/154805579/images/15-1.jpg "org (accessed Feb. 21, 2019). [3] TTA Standard, Transmitter/Receiver Interface for Terrestrial UHDTV Broadcasting, TTAK.KO-07.0127/R1, 2016.")
15 PLP0 audio PLP1 mobile HD PLP2 fixed UHD 5. PLP FEC Fig. 5. Measurement results for FEC error rate by each PLP PLP0( ), PLP1( HD ) FEC. PLP2(UHD ).. UHD, HD, ATSC 3.0, UHD HD., HD.,, ATSC 3.0, UHD. ATSC 3.0,. ATSC 3.0 DTV DMB, (ATSC1.0 ) (T-DMB). ATSC 3.0 DTV, DMB 2 ( 5kW), 10 ( 100W). DTV DMB Fading Margine(dB)., ATSC FFT,,, FEC,, RF. ATSC 3.0. (6MHz) ATSC 3.0 UHD, HD,. ATSC 3.0 RF IP.. (References) [1] J. H. Seo, B. H. Lee, H. M. Kim, Y. S. Kim, Trial Service Status for Terrestrial UHD Mobile Broadcasting, Korea Society Broadcast Engineers Magazine, Vol. 23, No. 2, pp , [2] ATSC, (accessed Feb. 21, 2019). [3] TTA Standard, Transmitter/Receiver Interface for Terrestrial UHDTV Broadcasting, TTAK.KO /R1, [4] ATSC Standard, Physical Layer Protocol, ATSC (Advanced Television Systems Committee) Std. A/322, Feb
![(JBE Vol. 24, No. 4, July 2019) [5] TTA Standard, Transmitter/Receiver Interface for Terrestrial Digital Multimedia Broadcasting, TTAK.KO-07.0024/R2, 2009.](/docs-images/102/154805579/images/16-0.jpg "[6] TTA Standard, Transmitter/Receiver Interface of High Quality Video for Terrestrial Digital Multimedia Broadcasting, TTAK.KO-07.0126/R1, 2016. [7] S. H. Kwon, S.")
![2018 Winter Conference, Korea Institute of Communication Sciences, pp.1416-1417, Jan., 2018. [9] Y. S. Kim, J. H. Seo, B. H. Lee, H. M.](/docs-images/102/154805579/images/16-2.jpg "Kim, Implementation of UHD Broadcasting Receiver Based on ATSC 3.0 Standards, Journal of Broadcast Engineering, Vol.23, No.6, 2018.")
16 (JBE Vol. 24, No. 4, July 2019) [5] TTA Standard, Transmitter/Receiver Interface for Terrestrial Digital Multimedia Broadcasting, TTAK.KO /R2, [6] TTA Standard, Transmitter/Receiver Interface of High Quality Video for Terrestrial Digital Multimedia Broadcasting, TTAK.KO /R1, [7] S. H. Kwon, S. I. Park, J. Y. Lee, B. M. Lim, H. M. Kim, Physical Layer Standard Technology for ATSC 3.0 Standards, Korea Society Broadcast Engineers Magazine, Vol. 20, No. 4, pp , [8] J. H. Seo, S. H. Kwon, H. M. Kim, Y. S. Kim, Implementation of Mobile HD Broadcasting Receiver for ATSC 3.0 Systems, Proc Winter Conference, Korea Institute of Communication Sciences, pp , Jan., [9] Y. S. Kim, J. H. Seo, B. H. Lee, H. M. Kim, Implementation of UHD Broadcasting Receiver Based on ATSC 3.0 Standards, Journal of Broadcast Engineering, Vol.23, No.6, : ~ : IT ~ 2018 : ~ : - ORCID : - :,,, ~ 2018 : ~ : - ORCID : - :, : : ~ : KBS ~ : KBS (UHD) - ORCID : - : ATSC 3.0 UHD / : : ~ : - ORCID : - :,, ATSC 3.0
17 ( ) ~ IT ~ 1998 : Malaysia Saint Univ. Visiting Professor ~ 2000 : Oklahoma Stata Univ. Visiting Professor ~ ~ ~ 2015 KBS ~ - ORCID : -,,
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