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GY/T 268.2-2013

Chinese Standard: 'GY/T 268.2-2013'
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Detail Information of GY/T 268.2-2013; GY/T268.2-2013
Description (Translated English): Digital audio broadcasting in FM band. Part 2: Multiplexing
Sector / Industry: Radio, Film & TV Industry Standard (Recommended)
Classification of Chinese Standard: M63
Word Count Estimation: 32,394
Date of Issue: 11/11/2013
Date of Implementation: 11/11/2013
Quoted Standard: GB/T 2659-2000; GB/T 4880.2-2000; GB/T 15273.1-1994; GB/T 28161-2011; GY/T 268.1-2013
Drafting Organization: China Radio International
Administrative Organization: National Radio, Film and Television Standardization Technical Committee
Regulation (derived from): The industry standard for the record Notice 2014 No. 7 (No. 175 overall)

GY/T 268.2-2013
GY
RADIO, FILM AND TELEVISION INDUSTRY STANDARD
OF THE PEOPLE'S REPUBLIC OF CHINA
Digital audio broadcasting in FM band –
Part 2. Multiplexing
调频频段数字音频广播 第 2部分. 复用
ISSUED ON. NOVEMBER 11, 2013
IMPLEMENTED ON. NOVEMBER 11, 2013
Issued by. State Administration of Press, Publication, Radio, Film and
Television of the People's Republic of China
Table of Contents
Foreword ... 4 
Introduction ... 5 
1 Scope ... 7 
2 Normative references ... 7 
3 Terms and definitions ... 7 
4 Abbreviation, symbol and appointment ... 9 
4.1 Abbreviation ... 9 
4.2 Symbols ... 9 
4.3 Protocol ... 10 
5 Overview ... 10 
6 Control multiplex frame ... 12 
6.1 Control multiplex frame header ... 12 
6.2 Payload of control multiplex frame ... 14 
Figure 5 Structure of control multiplex frame payload ... 14 
6.3 Control information table ... 14 
7 Service multiplex frame ... 21 
7.1 Service multiplex frame header ... 21 
7.2 Payload of service multiplex frame ... 25 
Figure 8 Structure of multiplex sub-frame ... 27 
7.3 Multiplex sub-frame ... 27 
Annex A (Normative) Mapping mode from service multiplex frame to channel logic
frame when uniform protection of channel ... 38 
Annex B (Informative) Calculation model of service data and service information
channel payload ... 40 
Annex C (Normative) Cyclic redundancy check (CRC) model ... 42 
Annex D (Informative) Example of transmission model of multiplex frame ... 44 
Figure 1 Position in digital audio broadcasting system ... 11 
Figure 2 Corresponding relation between the multiplex frame and channel
frame ... 11 
Figure 3 Structure of multiplex frame ... 12 
Figure 4 Structure of control multiplex frame header ... 13 
Figure 5 Structure of control multiplex frame payload ... 14 
Figure 6 Structure of service multiplex frame header ... 22 
Figure 7 Payload structure of service multiplex frame ... 25 
Figure 8 Structure of multiplex sub-frame ... 27 
Figure 9 Structure of audio section ... 31 
Figure 10 Structure of data section ... 33 
Figure 11 Structure of data block ... 35 
Figure A.1 Service multiplex frame structure of non-layering protection
mechanism ... 38 
Figure A.2 Service multiplex frame structure of layering protection
mechanism ... 39 
Figure C.1 Common CRC model ... 42 
Figure D.1 Example 1 of transmission model of multiplex frame ... 44 
Figure D.2 Example 2 of transmission model of multiplex frame ... 45 
Figure D.3 Example 3 of transmission model of multiplex frame ... 46 
Table 1 Parameters of control multiplex frame header ... 13 
Table 2 Distribution of mark symbol ... 14 
Table 3 Service multiplex configuration table ... 15 
Table 4 network information table ... 18 
Table 5 Parameters of service multiplex frame header ... 23 
Table 6 Parameters of sub-frame header ... 27 
Table 7 Indication of encapsulation mode ... 29 
Table 8 Mark of audio-channel quantity ... 30 
Table 9 Audio sampling rate ... 30 
Table 10 Audio section header ... 32 
Table 11 Data section head ... 33 
Table 12 Type of data unit ... 34 
Table 13 Parameter of data block head ... 36 
Table 14 Type of data block ... 36 
Table B.1 System payload carried in one logic frame of the service data
channel in one sub-band ... 40 
Table B.2 System payload carried in one logic frame of the service description
information channel in one sub-band ... 41 
Foreword
GY/T 268 Digital Audio Broadcasting in FM Band has issued or is planned to issue the
following parts.
— Part 1. Framing structure, channel coding and modulation for digital broadcasting
channel;
— Part 2. Multiplexing;
— ...
This is part 2 of GY/T 26.
This part is drafted according to the rules provided in GB/T 1.1-2009.
This part shall be under the jurisdiction of National Technical Committee Radio, Film and
Television of Standardization Administration of China (SAC/TC 239).
Drafting organizations of this Part. China Radio International, Beijing Guangyi Data
Communication Technology Co., Ltd., Suma Vision Technologies Co., Ltd. and Beijing
Radio and Television Technology Hi-Tech Kunihiro Co., Ltd.
The main drafters of this Part. Wang Lian, Zhu Yuhan, Tao Tao, Huang Jizhou, Feng
Xiaoning, Li Ke, Cao Xiaowei, Nie Shaolong, Jin Xueguang, Zhang Gang, Zou Jianyu,
Zhou Nan, Li Ruiwu and Guan Yi.
Introduction
The issuing organization of this part reminds the readers to notice that, when declaring to
comply with this part, the contents such as the followings may involve the patents that are
being applied [Translator note. for ease of reading, this paragraph is re-written in 4 bullet
points].
- In chapter 5, provision of dividing the transmission information on digital audio
broadcasting in FM band; provision for controlling the packaging control
information of multiplex frame; provision for packaging service information of
service multiplex frame; and the corresponding relation between the multiplex
frame and channel logic frame in chapter V;
- In chapter 6, definition of parameter configuration of control multiplex frame
header, provision for inserting control information table in control multiplex frame
payload; provision of mark distribution, sections of service multiplex configuration
table and network information table; definition of parameter configuration of
service multiplex configuration table and network information table;
- In chapter 7, definition of parameter configuration of service multiplex frame
header; provision of service carried by multiplex sub-frame and definition of
parameter......
Related standard:   GY/T 268.1-2013  GY/T 275-2013
   
 
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