GY/T 268.2-2013Digital audio broadcasting in FM band - Part 2: Multiplexing (English PDF)
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Issued by
State Administration of Press, Publication, Radio, Film and Television of the People's Republic of China
Level / Type
National · Recommended
Issue date
November 11, 2013
Implementation date
November 11, 2013
Scope
GY/T 268.2-2013 (Digital audio broadcasting in FM band - Part 2: Multiplexing) is available as an English-translated PDF.
GY/T 268.2-2013 — This part specifies the multiplex frame structure of audio, data and control information in digital audio broadcasting system in 87-108MHz frequency range.
This part is applicable to the broadcasting system that transmits digital audio broadcasting service and digital service signal, through ground wireless covering method, in 87-108MHz frequency range.
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Document preview — GY/T 268.2-2013
National Standard of the People's Republic of China
Issued by: State Administration of Press, Publication, Radio, Film and Television of the People's Republic of China
Contents
- Foreword...3
- Introduction...4
- 1 Scope...6
- 2 Normative references...6
- 3 Terms and definitions...6
- 4 Abbreviation, symbol and appointment...8
- 4.1 Abbreviation...8
- 4.2 Symbols...8
- 4.3 Protocol...9
- 5 Overview...9
- 6 Control multiplex frame...11
- 6.1 Control multiplex frame header...11
- 6.2 Payload of control multiplex frame...13
- 6.3 Control information table...13
- 7 Service multiplex frame...19
- 7.1 Service multiplex frame header...19
- 7.2 Payload of service multiplex frame...23
- 7.3 Multiplex sub-frame...25
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.
1 Scope
This part specifies the multiplex frame structure of audio, data and control information in
digital audio broadcasting system in 87-108MHz frequency range.
This part is applicable to the broadcasting system that transmits digital audio broadcasting
service and digital service signal, through ground wireless covering method, in
87-108MHz frequency range.
2 Normative references
The following documents are indispensable for application of this part. For the dated
documents so quoted, only the dated versions apply to this part. For the undated
documents so quoted, the latest versions (including all modification sheets) apply to this
part.
GB/T 2659-2000 Codes for the representation of names of countries and regions
GB/T 4880.2-2000 Codes for the representation of names of languages - art 2.Alpha-3
code
GB/T 15273.1-1994 Information processing - 8-bit single-byte coded graphic character
sets - Part 1.Latin alphabet No.1
GB/T 28161-2011 Specification of service information for digital television broadcasting
GY/T 268.1-2013 Digital audio broadcasting in FM band - Part 1.Framing structure,
channel coding and modulation for digital broadcasting channel
3 Terms and definitions
The following terms and definitions are applicable to this part.
3.1 Service
The content of the audio program is broadcasted according to the schedule.
3.2 Service description information channel
It is the channel for carrying the service description information in the channel logic frame.
3.3 Service data channel
It is the channel for carrying the service data in the channel logic frame.
3.4 Multiplex frame
It is the data frame for encapsulating the control or service information.
3.5 Control multiplex frame
It is one of the multiplex frames to encapsulate the control information.
4 Abbreviation, symbol and appointment
4.1 Abbreviation
The following abbreviations are applicable to this part.
CRC (Cyclic Redundancy Check)
ES (Elementary Stream)
4.2 Symbols
The following symbols are applicable to this part.
bslbf (bit string, left bit first)
uimsbf (unsigned integer, most significant bit first)
4.3 Protocol
The following protocols are applicable to this part.
5 Overview
In the digital audio broadcasting system, the multiplex function is integrated with
encapsulation and arrangement of audio, data, control information, etc., so as to transmit
the information on the digital audio broadcasting system, as shown in figure 1.
6 Control multiplex frame
6.1 Control multiplex frame header
The structure composition of control multiplex frame header sees figure 4; and the specific
syntactic structure sees table 1.
6.2 Payload of control multiplex frame
The payload of the control multiplex frame is composed of one or multiple control
information tables which are successively encapsulated in the control multiplex frame.
The structure of control multiplex frame payload sees figure 5.
6.3 Control information table
The control information table is the general term of service multiplex configuration table,
network information table and ESG basic description table carried in control multiplex
frame payload. According to the length of the information carried by the service
description information channel, the control information table can be transmitted by whole
table or segmentation; and the definition is as follows.
6.3.2 Network information table
The network information table provides the network and configuration of the network in the
adjacent area; and it is defined in table 4.
7 Service multiplex frame
7.1 Service multiplex frame header
The structure of service multiplex frame header sees figure 6; and the specific syntax
structure sees table 5.
7.2 Payload of service multiplex frame
The payload of service multiplex frame is composed of one or multiple multiplex
sub-frame; and there are 15 multiplex sub-frames at most.
7.3.4 Data block
When the multiplex sub-frame is encapsulated by mode 2, each audio or data unit is
divided into one or more data blocks; and the structure of the data block is shown in figure
11.
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
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... 3
Introduction... 4
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 6
4 Abbreviation, symbol and appointment... 8
4.1 Abbreviation... 8
4.2 Symbols... 8
4.3 Protocol... 9
5 Overview... 9
6 Control multiplex frame... 11
6.1 Control multiplex frame header... 11
6.2 Payload of control multiplex frame... 13
6.3 Control information table... 13
7 Service multiplex frame... 19
7.1 Service multiplex frame header... 19
7.2 Payload of service multiplex frame... 23
7.3 Multiplex sub-frame... 25
Annex A (Normative) Mapping mode from service multiplex frame to channel logic
frame when uniform protection of channel... 36
Annex B (Informative) Calculation model of service data and service information
channel payload... 38
Annex C (Normative) Cyclic redundancy check (CRC) model... 40
Annex D (Informative) Example of transmission model of multiplex frame... 42
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.
1 Scope
This part specifies the multiplex frame structure of audio, data and control information in
digital audio broadcasting system in 87-108MHz frequency range.
This part is applicable to the broadcasting system that transmits digital audio broadcasting
service and digital service signal, through ground wireless covering method, in
87-108MHz frequency range.
2 Normative references
The following documents are indispensable for application of this part. For the dated
documents so quoted, only the dated versions apply to this part. For the undated
documents so quoted, the latest versions (including all modification sheets) apply to this
part.
GB/T 2659-2000 Codes for the representation of names of countries and regions
GB/T 4880.2-2000 Codes for the representation of names of languages - art 2.Alpha-3
code
GB/T 15273.1-1994 Information processing - 8-bit single-byte coded graphic character
sets - Part 1.Latin alphabet No.1
GB/T 28161-2011 Specification of service information for digital television broadcasting
GY/T 268.1-2013 Digital audio broadcasting in FM band - Part 1.Framing structure,
channel coding and modulation for digital broadcasting channel
3 Terms and definitions
The following terms and definitions are applicable to this part.
3.1 Service
The content of the audio program is broadcasted according to the schedule.
3.2 Service description information channel
It is the channel for carrying the service description information in the channel logic frame.
3.3 Service data channel
It is the channel for carrying the service data in the channel logic frame.
3.4 Multiplex frame
It is the data frame for encapsulating the control or service information.
3.5 Control multiplex frame
It is one of the multiplex frames to encapsulate the control information.
4 Abbreviation, symbol and appointment
4.1 Abbreviation
The following abbreviations are applicable to this part.
CRC (Cyclic Redundancy Check)
ES (Elementary Stream)
4.2 Symbols
The following symbols are applicable to this part.
bslbf (bit string, left bit first)
uimsbf (unsigned integer, most significant bit first)
4.3 Protocol
The following protocols are applicable to this part.
5 Overview
In the digital audio broadcasting system, the multiplex function is integrated with
encapsulation and arrangement of audio, data, control information, etc., so as to transmit
the information on the digital audio broadcasting system, as shown in figure 1.
6 Control multiplex frame
6.1 Control multiplex frame header
The structure composition of control multiplex frame header sees figure 4; and the specific
syntactic structure sees table 1.
6.2 Payload of control multiplex frame
The payload of the control multiplex frame is composed of one or multiple control
information tables which are successively encapsulated in the control multiplex frame.
The structure of control multiplex frame payload sees figure 5.
6.3 Control information table
The control information table is the general term of service multiplex configuration table,
network information table and ESG basic description table carried in control multiplex
frame payload. According to the length of the information carried by the service
description information channel, the control information table can be transmitted by whole
table or segmentation; and the definition is as follows.
6.3.2 Network information table
The network information table provides the network and configuration of the network in the
adjacent area; and it is defined in table 4.
7 Service multiplex frame
7.1 Service multiplex frame header
The structure of service multiplex frame header sees figure 6; and the specific syntax
structure sees table 5.
7.2 Payload of service multiplex frame
The payload of service multiplex frame is composed of one or multiple multiplex
sub-frame; and there are 15 multiplex sub-frames at most.
7.3.4 Data block
When the multiplex sub-frame is encapsulated by mode 2, each audio or data unit is
divided into one or more data blocks; and the structure of the data block is shown in figure
11.
......
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2659-2000Codes for the representation of names of countries and their subdivisions - Part 1: Country code
- GB/T 4880.2-2000Codes for the representation of names of languages. Part 2: Alpha-3 code
- GB/T 15273.1-1994Information processing. 8-bit single-byte coded graphic character sets. Part 1: Latin alphabet No.1
- GB/T 28161-2011Specification of service information for digital television broadcasting
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Related Standards
GB/T 15273.1-1994 — Information processing. 8-bit single-byte coded graphic character sets. Part 1: Latin alphabet No.1
GB/T 2659-2000 — Codes for the representation of names of countries and their subdivisions - Part 1: Country code
GB/T 28161-2011 — Specification of service information for digital television broadcasting
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