GY/T 220.2-2006 PDF in English
GY/T 220.2-2006 (GY/T220.2-2006, GYT 220.2-2006, GYT220.2-2006)
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Mobile Multimedia Broadcasting - Part 2: Multiplexing
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Standards related to (historical): GY/T 220.2-2006
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GY/T 220.2-2006: PDF in English (GYT 220.2-2006) GY/T 220.2-2006
GY
Radio, Film & Television Industry Standard of
the People’s Republic of China
Mobile Multimedia Broadcasting - Part 2. Multiplexing
ISSUED ON. NOVEMBER 29, 2006
IMPLEMENTED ON. DECEMBER 01, 2006
Issued by. State Administration of Radio, Film & Television
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms, Definitions, Abbreviations and Defaults ... 5
3.1 Terms and Definitions ... 5
3.2 Abbreviations ... 7
3.3 Defaults ... 9
4 Overview ... 9
5 Structure of Multiplex Frame ... 10
5.1 Multiplex Frame Header ... 11
5.2 Multiplex Frame Payload ... 15
6 Control Information Table ... 16
6.1 Overview ... 16
6.2 Network Information Table ... 17
6.3 Continual service / Sort time service Multiplex Configuration Table ... 20
6.4 Continual service / Sort time service Multiplex Configuration Table ... 23
7 Multiplex Sub-frame ... 25
7.1 Sub-frame header ... 27
7.2 Video section ... 33
7.3 Audio section ... 36
7.4 Data section ... 37
Appendix A ... 40
Appendix B ... 42
Foreword
GY/T 220 Mobile Multimedia Broadcasting is in series standards.
- Part 1. Framing Structure Channel Coding and Modulation for Broadcasting
Channel.
This Part is part 2 of GY/T 220.
Appendix A and Appendix B are normative.
This Standard shall be centralized by National Television Broadcast Standardization
Technical Committee.
Drafting organization of this Standard. Academy of Broadcasting Science of State
Administration of Radio, Film & TV; ZTE Corporation; and Beijing Taimei Century
Technology Co., Ltd.
The main drafters of this Standard. Xie Wei, Guo Xiaoqiang, Yang Qinghua, Wang
Biao, Shen Can, Yan Xiangbiao, Zhu Xiaoguang, and Tao Tao.
Introduction
The issuing organization of this Standard draws attention to the following facts that
when a user [Translator note. i.e. the product to be marketed] claims that he/she
complies with this Standard, it may use the relevant patents-authorization involved in
the related contents in this Standard, and patents under application.
The issuing organization of this Standard has no opinion on the patents’ scope,
validity and validating evidence.
The patents-holders have guaranteed to the issuing organization of this Standard that
they will grant licenses of their patents to any applicants who want to implement this
Standard, on fair, reasonable and non-discriminatory terms. The patents-holder’s
statements have been submitted to the issuing organization of this Standard.
The table below shows the information of patents-holders.
Patents-holders Address Contacts Zip code Telephone E-mail
ZTE Corporation
A-5F, ZTE building,
Science and
Technology Park,
Nanshan District,
Shenzhen, China
Wang
Haibo 518057 075526770044
wanghaibo@zte.
com.cn
Beijing Taimei
Century
Technology Co.,
Ltd.
11F, Bldg #2, No.2
LanDianChang
Eastern Road,
HaiDian District,
Beijing, China
Ye Ruirui 100097 010-88865631 Ruirui.ye@timitech.com
Please be noted that some contents in this Standard may involve other patents,
except the patents identified in patent-statements for this Standard. The issuing
organization of this Standard does not undertake the responsibility to identify these
patents.
Mobile Multimedia Broadcasting –
Part 2. Multiplexing
1 Scope
This Standard specifies the video, audio, data and control information multiplex frame
structure in mobile multimedia broadcast system.
This Standard applies to multimedia signal broadcast systems to transmit video, audio
and data information via satellite and/or terrestrial wireless stations.
2 Normative references
The provisions in following documents become the provisions of this Standard through
reference in this Standard. For dated references, the subsequent amendments
(excluding corrections) or revisions do not apply to this Standard, however, parties
who reach an agreement based on this Standard are encouraged to study if the latest
versions of these documents are applicable. For undated references, the latest edition
of the referenced document applies.
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 - Part 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
GY/Z 174-2001 Specification of conditional access system for digital television
broadcasting
GY/T 220.1-2006 Mobile Multimedia Broadcasting – Part 1. Framing structure,
Channel Coding and Modulation for Broadcast Channel
3 Terms, Definitions, Abbreviations and Defaults
3.1 Terms and Definitions
The following terms and definitions apply to this Standard.
3.1.1
CMMB (China Mobile Multimedia Broadcasting)
CRC (Cyclic Redundancy Check)
CSCT (Continual Service Configuration Table)
ES (Elementary Stream)
ESG (Electronic Service Guide)
LDPC (Low Density Parity Check)
LSB (Least Significant Bit)
MF_ID (Multiplex Frame Identifier)
MFS (Multiplex Frame Structure)
MJD (Modified Julian Date)
MSF (Multiplex Sub Frame)
MSF_ID (Multiplex Sub Frame Identifier)
MSB (Most Significant Bit)
MUX (Multiplex)
NIT (Network Information Table)
PPS (Picture Parameter Sets)
QAM (Quadrature Amplitude Modulation)
QPSK (Quadrature Phase Shift Keying)
Service ID (Service Identifier)
SMCT (Short time service Multiplex Configuration Table)
SSCT (Short time Service Configuration Table)
UTC (Universal Time, Co-ordinated)
bslbf (bit string, left bit first)
uimsbf (unsigned integer, most significant bit first)
3.3 Defaults
The following defaults apply to this Standard.
3.3.1 Version number
It is use to identify the version of this Standard, so as to support the system’s
compatibility identification. The current version number is 1. The subsequent version
number will be increased progressively.
3.3.2 Reserved
Unless otherwise specified, all reserved bit defined in this Standard shall be set as ‘1’.
3.3.3 Relational operators
< Less than
> More than
== Equal to
!= Not equal to
4 Overview
Multiplexing is used for the encapsulation and sequence arrangement of audio, video,
data and control information such that they are adaptive to mobile multimedia
broadcast channel for transmission, see Figure 1. The audio stream, video stream
and data stream that belong to the same service will be placed in the same multiplex
sub-frame. Auxiliary information such as ESG, subscriber management will be placed
in different multiplex sub-frames. The system control information will be placed in a
special multiplex frame.
configuration table. When there is a change in information described in short time
service multiplex configuration table, the sequence number of short time service
multiplex configuration table needs to be changed; the value shall be cyclically taken
from the range 0~15, adding 1 for each update.
Sequence number for short time service configuration table update
4-bit field, indicating the sequence number of short time service configuration table.
When there is a change in information described in short time service configuration
table, the sequence number of short time service configuration table needs to be
changed; the value shall be cyclically taken from the range 0~15, adding 1 for each
update.
Sequence number for ESG update
4-bit field, reserved for ESG.
Quantity of multiplex sub-frame
4-bit field, quantity of multiplex sub-frames that are included in multiplex frame.
Length of Multiplex Sub-frame 1
24-bit length, the length of the first multiplex sub-frame in multiplex frame, unit is byte.
Length of multiplex sub-frame
24-bit length, the length of the multiplex sub-frames other than the first sub-frame in
multiplex frame, unit is byte.
Next frame parameter
40-bit field, the critical parameter of the next multiplex frame (same a...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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