THE MINISTRY OF INFORMATION AND COMMUNICATIONS -------	SOCIALIST REPUBLIC OF VIETNAM Independence - Freedom - Happiness ---------------
No. 15/2013/TT-BTTTT	Hanoi, July 01, 2013

 

CIRCULAR

AMENDING AND SUPPLEMENTING CIRCULAR NO. 20/2012/TT-BTTTT DATED DECEMBER 04, 2012, OF THE MINISTER OF INFORMATION AND COMMUNICATIONS, PROMULGATING THE NATIONAL TECHNICAL REGULATION

Pursuant to the June 29, 2006 Law on Standards and Technical regulations;

Pursuant to the November 23, 2009 Law on telecommunication;

Pursuant to the November 23, 2009 Law on Radio frequency;

Pursuant to the Government’s Decree No. 127/2007/ND-CP dated August 01, 2007 detailing and guiding implementation of a number of Articles of Law on Standards and Technical regulations;

Pursuant to the Government’s Decree No. 187/2007/ND-CP dated December 25, 2007, defining the functions, tasks, powers and organizational structure of the Ministry of Information and Communications and Decree No. 50/2011/ND-CP dated June 24, 2011 amending Decree No. 187/2007/ND-CP dated December 25, 2007;

At the proposal of Director of Science and Technology Department;

The Minister of Information and Communications promulgates Circular amending and supplementing Circular No. 20/2012/TT-BTTTT dated December 04, 2012, of the Minister of Information and Communications, promulgating the national technical regulation,

Article 1. To amend and supplement Circular No. 20/2012/TT-BTTTT dated December 04, 2012, of the Minister of Information and Communications, promulgating the national technical regulation as follows:

1. To amend and supplement a number of provisions of the national technical regulation on digital terrestrial television receivers DVB-T2, sign QCVN 63:2012/BTTTT at the enclosed Annex 1;

2. To amend and supplement a number of provisions of the national technical regulation on digital video broadcasting transmitting signal DVB-T2, sign QCVN 64:2012/BTTTT at the enclosed Annex 2;

Article 2. This Circular takes effect on August 15, 2013.

Article 3. The Chief of office, Director of Science and Technology Department, heads of agencies, units of Ministry of Information and Communications, Directors of the provincial/municipal Services of Information and Communications and relevant organizations and individuals shall implement this Circular.

 

MINISTER OF INFORMATION AND COMMUNICATIONS Nguyen Bac Son

 

ANNEX 1

AMENDING AND SUPPLEMENTING A NUMBER OF PROVISIONS OF THE NATIONAL TECHNICAL REGULATION ON DIGITAL TERRESTRIAL VIDEO BROADCASTING RECEIVERS DVB-T2, SIGN QCVN 63:2012/BTTTT
(Promulgated together with Circular No. 15/2013/TT-BTTTT dated July 01, 2013 of the Ministry of Information and Communications)

1. Reference documents [2], [4], [21] section “1.3. Reference documents” is amended as follows:

“[2]	ETSI EN 302 755 (V1.2.1), Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial video broadcasting system (DVB-T2)”
“[4]	TCVN 7600:2010 (IEC/CISPR 13:2009), sound and television broadcast receivers and associated equipment – radio frequency interference characteristics - Limits and methods of measurement”
“[21]	CI Plus Specification V1.3”

2. To supplement section “1.4.8. Up Converter)” as follows:

" 1.4.8. Up Converter

Up frequency converter.”

3. To remove the abbreviated words, interpretation on the abbreviated words “AC3” and “E-AC3” of section “1.5. the abbreviated words”

4. To amend and supplement section "2.1.3. Adaptation of electromagnetic field” as follows:

“Receivers must abide by requirement on adaptation of electromagnetic field in national standard TCVN 7600:2010 (IEC/CISPR 13:2009)[4].”

5. To amend the last paragraph of section “2.2.3.1. Handling of PSI/SI signal tables” as follows:

"Receivers must have ability to handle the following tables: NIT, PAT, PMT, SDT, EIT, TDT. The above information tables are described in regulation for the broadcasting signal part of DVB-T2.”

6. To amend, supplement section “2.2.6. Logic channel numbering (LCN) as follows:

“Receivers must have ability to handle service information from Logical Channel Number table to support the numbering, arranging and searching channel.

Receivers support LCN by using the logic channel description set with descriptor_tag of 0x83 in the following structure and syntax:

Syntax	Size (bit)	Identifier
logical_channel_descriptor(){
descriptor_tag	8	uimsbf
descriptor_length	8	uimsbf
for (i=0;i<N;i++){
service_id	16	uimsbf
visible_service3_flag	1	bslbf
Reserved	5	bslbf
logical_channel_number	10	uimsbf
}}

In which:

descriptor_tag: set 0x83;

service_id: 16bite string used to identify service in transmitted data stream (TS);

visible_service_flag: Signal flag showing service, valued at “1” if service may be presented and selected in list of services on receiver; valued at “0” if service fails to be presented and selected in list of services on receiver;

Reserved: Reserved string for use in future, including 5 bites, set “1”;

logical_channel_number: 10 bite string to present the priority level when arranging order of services.

LCN will be numbered from 1 to 999. In which, channels are numbered from 1 to 799 by service providers; the reserved LCN channels are numbered from 800 to 999.”

7. To amend section “2.3.2. RF Output Connector" as follows:

“STB must have RF output connectors according to standard IEC 60169-2 [10], male connector type.“

8. To amend section “2.3.5. RCA audio interface" as follows:

“STB must have audio output similar RCA, female connector type according to standard IEC 60603-14 [12], male connector type.“

9. To amend section “2.3.6. Conditional access support interface" as follows:

“In case of having conditional access support interface , receiver must have at least an CI interface in accordance with standard ETSI EN 50221 [13] or CI Plus interface of version 1.3 [21].”

10. To amend section “2.4.22.4. HE-AAC support on similar audio output interface" as follows:

“In case of having similar audio port (RCA), receiver must have ability to decode and downmix sound coded HE-AAC to put out similar audio port (RCA).“

11. To amend point 2, section “3.1.2.2. Procedures for measuring" as follows:

“2. Use DVB-February mode corresponding to: 32k expanding, 256 QAM revolving, GI 1/16, PP4, R2/3, TR-PAPR;”

12. To amend point 4, section “3.1.2.2. Procedures for measuring" as follows:

“4. Start with frequency 178 MHz (Channel 6);”

13. To amend point 2, section “3.2.2.2. Procedures for measuring" as follows:

“2. Use broadcasting frequency UHF IV/V 666 MHz and input level of receiver is -50 dBm. Select DVB-T2 mode corresponding to:

·         Single PLP mode;

·         UHF: 32k standard/expanding, 256 QAM revolving, GI1/16, PP4, R2/3, TR-PAPR; 32k, 256 QAM, GI1/128, PP7, R5/6.”

14. To amend section “3.6.1. Configuration of measuring" as follows:

Phrase “B mode (Multiple PLP)” is amended into phrase “A mode (Single PLP)”.

15. To amend table 16 as follows:

Table 16 – Changes for the modulation parameters – DVB-T

16. To amend table 20 as follows:

Table 20 – Parameters of DVB-T2 mode used in measuring

	Parameter
	FFT	32k	32k	32k			32k	32k
	Bandwidth	8 MHz	8 MHz	8 MHz			8 MHz	8 MHz
	Carrier bandwidth mode	Expanding	Expanding	Expanding			Expanding	Expanding
	Protective section	1/8	19/256	1/16			1/32	1/128
	Pilot sample	PP2	PP4	PP4			PP4	PP7
Single PLP (A mode)	Lf	20,42,62	42,62	20,42,62			20,42,60	20,42,60 (QPSK) 20,42,60 (16QAM) 20.40,60 (64QAM) 20.40,60 (256QAM)
	L1 modulation	64 QAM	64 QAM	64 QAM			64 QAM	64 QAM
	FEC block/interleaved frame	67,135,185	63,135,200	135,200			64,135,200	16,34,50 (QPSK) 33,69,100 (16QAM) 49.99,150 (64QAM) 66,133,200 (256QAM)
	Code rate	3/5	3/5, 2/3, 3/4	3/5,2/3,3/4			All
	Modulation	256 QAM	256 QAM	256 QAM			256 QAM
Multiple PLP (B mode)	Lf			27
	Subslices			135
	L1 modulation			64QAM
	PLP mode			Common	DT2	DT2
	FEC block/interleaved frame			35	57	57
	Code rate			2/3	2/3	2/3
	Modulation			64 QAM	256 QAM	256 QAM
	BUFS			483328	1613824	1613824

17. To amend table 27 as follows:

Table 27 – Frequencies and signal bandwidths that compulsory support

18. To amend table 28 as follows:

Table 28 – Modes of measuring and checking the maximal output signal level

Mode	Input signal level (dBm)	Assessment of result
8K, 64-QAM, R=2/3, Δ/Tu=1/8	-25
8K, 64-QAM, R=2/3, Δ/Tu=1/4	-25
8K, 64-QAM, R=3/4, Δ/Tu=1/4	-25
8K, 64-QAM, R=3/4, Δ/Tu=1/8	-25
32K ext, 256-QAM, R=3/4, Δ/Tu=1/4	-25
32K ext, 256-QAM, R=4/5, Δ/Tu=1/8	-25
32K ext, 256-QAM rotated, PP7, R=3/4, Δ/Tu=1/128	-25

19. To amend point 5, section “3.15.2. Procedures for measuring" as follows:

“5. Adjusting level of FM carrier to -13 dB in comparison with picture carrier"

20. To remove point 6, section “3.15.2. Procedures for measuring”  

21. To amend point 6, section “3.17.1.2. Procedures for measuring" as follows:

“6. Adjusting level of FM carrier to -13 dB in comparison with picture carrier"

22. To amend point 6, section “3.17.2.2. Procedures for measuring" as follows:

“6. Adjusting level of FM carrier to -13 dB in comparison with picture carrier"

23. To amend Table 38 as follows:

Table 38 – Result of measuring

Signal bandwidth 8 MHz
DVB-T2 mode	Echo signal lag [µs]
	-260	-230	-200	-150	-120
32K ext, 256-QAM, PP4, R=3/5, GI =1/16
32K ext, 256-QAM, PP4, R=2/3, GI =1/16
32K ext, 256-QAM, PP4, R=3/4, GI =1/16
32K ext, 256-QAM, PP4, R=3/5, GI =1/32
32K ext, 256-QAM, PP4, R=2/3, GI =1/32
32K ext, 256-QAM, PP4, R=3/4, GI =1/32
	Echo signal lag [µs]
	260	230	200	150	120
32K ext, 256-QAM, PP4, R=3/5, GI =1/16
32K ext, 256-QAM, PP4, R=2/3, GI =1/16
32K ext, 256-QAM, PP4, R=3/4, GI =1/16
32K ext, 256-QAM, PP4, R=3/5, GI =1/32
32K ext, 256-QAM, PP4, R=2/3, GI =1/32
32K ext, 256-QAM, PP4, R=3/4, GI =1/32

NOTE: The blacked part is modes not required to measure.

24. To amend point 2, section “3.21.2.2. Procedures for measuring" as follows:

“2. Select of programs from measuring data with bite speed 600 kbps, video resolution of 720x576 containing audio;”

25. To remove point 5, section “3.21.3.2. Procedures for measuring”

26. To amend point 4, section “3.21.4.2. Procedures for measuring" as follows:

“4. Use data TS B, TS P and check by QMPL method to assess display ability of resolutions in Table 40.”

27. To remove point 5, section “3.21.4.2. Procedures for measuring”

28. To amend point 4, section “3.22.2.2. Procedures for measuring" as follows:

“4. To select stereo audio mode at system of selected list.”

29. To amend section “5. Responsibilities of organizations and individuals" as follows:

“Relevant organizations and individuals shall implement quality management of receivers in terrestrial digital video broadcasting network DVB-T2 under regulation and bear inspection of state management agencies.”