WO2008113237A1 - A method for transmitting mobile multimedia broadcast electronic service guide - Google Patents

A method for transmitting mobile multimedia broadcast electronic service guide Download PDF

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Publication number
WO2008113237A1
WO2008113237A1 PCT/CN2007/003940 CN2007003940W WO2008113237A1 WO 2008113237 A1 WO2008113237 A1 WO 2008113237A1 CN 2007003940 W CN2007003940 W CN 2007003940W WO 2008113237 A1 WO2008113237 A1 WO 2008113237A1
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WO
WIPO (PCT)
Prior art keywords
data
esg
service guide
electronic service
multiplex
Prior art date
Application number
PCT/CN2007/003940
Other languages
English (en)
French (fr)
Inventor
Zunyou Ke
Hailong Wen
Qinghua Yao
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to EP07855940.8A priority Critical patent/EP2139132B1/en
Priority to US12/532,110 priority patent/US8289995B2/en
Publication of WO2008113237A1 publication Critical patent/WO2008113237A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/72—Systems specially adapted for using specific information, e.g. geographical or meteorological information using electronic programme guides [EPG]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26283—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for associating distribution time parameters to content, e.g. to generate electronic program guide data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64315—DVB-H
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/72—Wireless systems of terrestrial networks

Definitions

  • the present invention relates to mobile multimedia broadcast technologies, and more particularly to a method for transmitting a mobile multimedia broadcast electronic service guide (ESG).
  • ESG mobile multimedia broadcast electronic service guide
  • the mobile TV service is a typical application of mobile multimedia broadcasting technology. For mobile operators, it can maximize the use of network capabilities and provide more abundant services. For broadcasters, it is a new channel for TV broadcasting and can make full use of it. Content resources, expand the scope of users, and realize the mobilization of broadcast networks.
  • China's mobile phone users in 2006 have reached nearly 400 million, and the number of homes with TV sets in China has reached 350 million. It is conceivable that the combined mobile TV business will create a huge consumer market. According to foreign forecasts, there will be 120 million mobile TV users in the world by 2010, and the number of users in China will be close to 40 million.
  • Downlink transmission technology is the key to the implementation of this service, and is responsible for the transmission of TV program information and content to users. At present, the industry pays close attention to this part of the technology, and the proposed implementation technology is also diverse. In summary, different downlink transmission technologies can be roughly divided into three implementation modes: (1) implementation based on mobile network technology; ) based on the implementation of satellite transmission technology; (3) based on the implementation of terrestrial digital broadcasting network technology.
  • the technology used in the implementation is derived from terrestrial digital broadcast television transmission technology, and the frequency used is generally the broadcast television frequency band.
  • the technology has been improved on the basis of the original technology to become a mobile TV technology, while other technologies are designed for both terrestrial digital broadcast television systems and mobile TV systems.
  • This kind of technology is one of the most concerned technologies in the world, and it is also the one with the most programs.
  • the typical technologies include European ones.
  • DVB-H, MEDIAFLO from Qualcomm, T-DMB from Korea, and ISDB-T from Japan The two technologies in Europe and America are specifically designed for mobile terminals, and the two technologies of Japan and South Korea can be applied to both mobile terminals and digital TVs.
  • China's Tsinghua University and Shanghai Jiaotong University have studied domestic technology on the basis of their digital TV standards DMB-TH and ADTB-T.
  • the domestic new shoreline company has also developed the terrestrial mobile multimedia broadcasting technology T-MMB based on the European DAB technology.
  • the ESG (Electronic Service Guide) information of the mobile multimedia broadcast mainly includes: the service information, the service extension information, the content information, the service parameter information, and the arrangement information. How to use the use of traffic channel multiplexing to transmit ESG information is a problem that needs to be solved.
  • the technical problem to be solved by the present invention is to provide a transmission method of a mobile multimedia broadcast electronic service guide, which can realize the transmission of ESG information, and provides a convenient basis for the flexible multimedia broadcast system to perform ESG information transmission and business application development flexibly.
  • the present invention provides a transmission method of a mobile multimedia broadcast electronic service guide, which includes the following steps:
  • the multiplexer multiplexes the electronic service guide information into the multiplex frame, and the multiplexed payload of the multiplex frame includes one or more multiplex subframes;
  • the broadcast transmitting station modulates the multiplexed frame and transmits it to the mobile user terminal.
  • the electronic service guide information includes an electronic service guide data and an electronic service guide basic description table.
  • the multiplex frame is used to carry service information or control information, and each multiplex frame is allocated with a multiplex frame identifier, where the multiplex frame identifier corresponds to one control logical channel or service Logical channel.
  • the multiplexer multiplexes the electronic service guide data into a multiplex frame carrying service information, where the multiplex subframe of the multiplex frame includes a subframe header and a data segment, and the data
  • the segment includes a data segment header and a plurality of data units, the data segment header includes a number of data units and a CRC check code, and data unit parameters are written in the data segment header or in front of each data unit, the data unit
  • the parameters include data unit type and data unit length information for each data unit.
  • the electronic service guide data is transmitted using a separate multiplex subframe, and/or the audio and video data are transmitted together with the electronic service guide data in a multiplex subframe, and the multiplex subframe is sub-framed.
  • the frame header indicates whether the multiplex subframe contains an audio segment or a video segment or a data segment.
  • the electronic service guide data includes service information, service extension information, scheduling information, content information, and service parameter information; and the electronic service guide data of a certain transmission is all data records in all or part of the electronic service guide data types. Or partially, and identifying the data type of the electronic service guide data carried by the data payload by using an electronic service guide data type identifier in the data header of the corresponding data unit.
  • the data unit includes a data header, a data payload, and a CRC check code.
  • step (b) when the data length of the electronic service guide information is greater than the maximum data payload length of the data unit. Transmitting the electronic service guide data into different data sections, using different data unit sections to encapsulate the transmission, and indicating the total number of segments and the electronic service guide data in the data unit in the data header of each data unit. Section number.
  • step (b) the electronic service guide data is compressed, and the coding type used in the compression is indicated in the data header; in step (d), the user terminal is based on the coding type. Decompress the data.
  • the electronic service guide data is divided into a plurality of electronic service guide data blocks, and the data block identifier is distinguished in the electronic service guide header, and the division rule of the data block includes pressing The play time is divided and the electronic service guide data is transmitted using the data payload of the data unit.
  • the multiplexer multiplexes the electronic service guide basic description table into a multiplexing frame carrying control information, where the multiplexing payload of the multiplexing frame includes one or more control letters.
  • the control information table includes at least one electronic service guide basic description table, and the electronic service guide basic description table is used to describe a configuration of a multiplex subframe for transmitting ESG data.
  • the electronic service guide basic description table includes one or more of the following fields: a table identification number, an ESG update sequence number, a segment length, a segment sequence number, a segment number, a network level, a network number, a local time offset, and a character. Encoding type, number of ESG service logical channels, ESG service logical channel description, number of ESG data types, ESG data type description, CRC-32.
  • the ESG service logical channel description includes one or more of the following fields: an index identifier, an ESG service identifier, and the ESG data type description includes one or more of the following fields: an ESG data type identifier, a data block number, Data block description.
  • the data block description includes one or more of the following fields: a data block identifier, a data block version number, and an ESG service logical channel identifier.
  • the multiplexing period of the multiplexer is 1 second, and the multiplexing period is divided into 40 time slots, and the multiplexing frame and the time slot mapping on the service and control logical channels are determined by the system configuration, where The multiplex frame identifier ranges from 0 to 39, and the maximum is 39.
  • the multiplex frame with the multiplex frame identifier of 0 is mapped to the control logical channel, and the other multiplex frames are mapped to the service logical channel.
  • the electronic service guide data is transmitted using a multiplexed frame of a service logical channel; or a multiplexed frame transmission using a control logical channel according to an electronic service guide basic description table; or a partial electronic service guide data using a control logical channel multiplexing Frame transmission, part of the electronic service guide data is transmitted using the multiplexed frame of the service logical channel.
  • the method is an ESG transmission method for a mobile multimedia broadcast multiplexing transmission system, and is different from other transmission ESG methods such as DVB-H, MEDIAFLO, and the like. Also complete the ESG transmission function of the respective system.
  • the method enables ESG information to be transmitted along with the audio and video data over the traffic channel or separately over the traffic channel. It provides a very convenient foundation for flexible ESG transmission of mobile multimedia broadcasting systems and business application development. BRIEF abstract
  • 1 is a schematic diagram of the overall structure of a mobile multimedia broadcast system of the present invention
  • 2 is a schematic diagram of a traffic channel multiplexing structure according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an ESG data unit according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an ESG basic description table according to an embodiment of the present invention.
  • the logical entities of the method include a multiplexer, a broadcast transmitting station, and a mobile user terminal (UE), etc.
  • Multiplexer Acquire ESG, and other audio and video data, multiplex ESG related data into the logical channel, and hand it to the broadcast transmitting station to modulate the transmission.
  • Broadcast Transmitter Modulates the data after transmission multiplexing.
  • Mobile user terminal UE Includes mobile communication devices such as mobile phones. It can receive data transmitted by the broadcast network channel, such as ESG information, and cache, update, query, and display the ESG.
  • the ESG transmission method includes the following steps:
  • the multiplexer receives the ESG information
  • the multiplexer multiplexes the ESG information into a specified multiplex frame, where the multiplex frame may be a multiplex frame carrying control information or a multiplex frame carrying service information;
  • the multiplexer transmits the multiplex frame to the broadcast transmitting station
  • the broadcast transmitting station transmits the multiplexed frame modulation to the mobile user terminal.
  • the mobile user terminal receives data transmitted by the broadcast transmitting station and performs demodulation, and the user can use the terminal to acquire and display ESG information, and discover and use the service.
  • the above-mentioned multiplexed ESG information includes ESG data and an ESG basic description table, and the ESG data in the text includes data in an electronic service guide XML format.
  • Data instance package represented by these data elements Comprising: records of business tables, business extension information tables, content tables, business parameter tables, and schedules, but the present invention is not limited to this format.
  • the multiplexing system of the present invention adopts a frequency-based, time-division multiplexing method.
  • a plurality of multiplexed frames constitute a broadcast channel frame, and the multiplexed frame is composed of a multiplexed frame header, a multiplexed payload, and a padding portion.
  • the logical multiplexing frame and time slot mapping is determined by the system configuration.
  • the frame is mapped to the control logical channel.
  • the multiplexed payload of the multiplexed frame is generally composed of multiplexed subframes of multiple data, and the multiplexed subframes have different uses, such as different TV channels, configuration control information, ESG information, etc. transmission.
  • the number of multiplexed subframes is 1 to 15.
  • Such a multiplex subframe includes a sub-frame header, a video segment, an audio segment, and a data segment, and may also include only one or two of a video segment, an audio segment, and a data segment in one multiplex sub-frame, and may be used.
  • the multiplex sub-frame header indicates whether an audio segment, a video segment, or a data segment is included in the multiplex subframe of the traffic channel.
  • the multiplexed subframe may be used to transmit the ESG data, that is, there is no audio segment and video segment in the multiplex subframe.
  • the data segment is only used for ESG data transmission.
  • the audio and video data may also be transmitted together with the associated ESG information in a multiplexed subframe, that is, along with the path; or, both methods may be used simultaneously on different multiplex subframes.
  • the data segment can accommodate a plurality of contents, including a data segment header and a plurality of data units, and the data unit number, the data unit parameter, and the CRC check code of the data are defined in the data segment header, where the data unit Parameters include a description of each data unit type and data unit length Said.
  • Data unit parameters can also be placed in front of the corresponding data unit rather than in the data segment header.
  • a specific data type value is defined to identify that the data unit contains ESG data, which is also referred to as an ESG. Data unit.
  • ESG data payload length of an ESG data unit is limited, the general system will set a maximum value, such as 64Kbytes.
  • a maximum value such as 64Kbytes.
  • the processed ESG data block is divided into different data sections as the ESG data payload of an ESG data unit, and transmitted using different ESG data units.
  • the UE will generally parse all the sections before summarizing.
  • ESG data can also be compressed and then transmitted.
  • the ESG data unit is encapsulated in a data segment.
  • the structure of the ESG type data unit is as shown in FIG. 4, and is composed of a data header, a data payload, and a CRC check code.
  • the data header consists of the following fields: data block identifier, ESG data type identifier, encoding type, section number, total number of sections, and so on. among them:
  • Data block identifier Indicates the data block to which the ESG data payload belongs. Multiple ESG data blocks in the system (such as today's ESG as an ESG data block and ESG as an ESG data block at other times of the week) need to be distinguished by the data block identifier of the ESG header when rotating at the same time. Each data block can be obtained from a combination of ESG data of a plurality of ESG data types, such as combining various ESG data to be broadcast that day into one data block.
  • the ESG data type identifier is used to identify the type of the ESG data carried by the data payload.
  • the ESG data type refers to the ESG data table to which the data in the ESG data payload belongs. You can use the table identifier in the list as the ESG data type identifier here by defining a table identifier constant list. Together with the data block identification, it uniquely determines the data block to which a data section belongs.
  • Encoding Type Indicates the compression encoding type used by the ESG data payload. A 3-bit field definition can be used, see Table 1. Coding type
  • the GZIP compression coding is compressed by the GZIP compression algorithm, see IETF RFC 195 2 .
  • Section number Indicates the section number of the current transmission data. That is, the ESG data payload is transmitted in the first data section of the associated ESG data block. The section number is a number for these data sections. The minimum value is 1, and the maximum value is the total number of data in the ESG header.
  • Total number of sections Indicates the total number of sections carrying the currently transmitted data. That is to say, the ESG data is transmitted in the ESG data unit, and is divided into how many data segments are multiplexed and transmitted. That is, how many ESG data payloads are divided into ESG data payloads, and how many data units are used for transmission.
  • the byte length of the ESG data payload can be derived using the determined values such as the ESG data unit length and the ESG header length, namely: data unit length - (ESG header length + CRC length).
  • the ESG header length and CRC length are set to a fixed value.
  • the multiplex frame payload in the multiplex frame includes a plurality of control information tables, each of which is multiplexed.
  • the child is composed of a control information table.
  • the broadcast system has different transmission repetition rate (frequency) requirements for each table data. Therefore, the system generally generates ESG data in separate tables and schedules transmissions separately. In this way, multiple ESG table data are separated and transmitted using different ESG data units.
  • the ESG information of a certain transmission is all or part of the data records in all or part of the types of tables. Data from the same type of ESG table is typically transmitted in one data unit, unless it is particularly large, requiring subsections.
  • the multiplexed frame transmission is performed by multiplexing the ESG data into the service logical channel.
  • the ESG data may be multiplexed into the multiplex frame carrying the control information according to the ESG basic description table.
  • the ESG information including the ESG data and the ESG basic description table are both multiplexed frame transmission using the control logical channel.
  • the ESG basic description table is a control information table whose table data The configuration of the multiplex subframe in which the ESG data is transmitted is described, including the ESG service logical channel description, the number of ESG data types, the ESG data type parameters, and the ESG table parameters.
  • the data of the table is used as a special multiplex subframe, and is not encapsulated into the multiplex subframe and data unit structure of FIG. 2 to 4.
  • the ESG service logical channel in the table refers to a service logical channel for transmitting ESG data, and the ESG service logical channel is mapped into one or more multiplex subframes of the 1 ⁇ 39# multiplex frame.
  • the ESG basic description table includes the following:
  • Table identification number 8-bit field, the basic description table identification number is assigned in Table 2 of GY/T220.2-2006.
  • ESG update sequence number 4-bit field, value range 0 ⁇ 15, indicates the current update sequence number of the basic description table. When the information of the basic description table changes, the ESG update sequence number is incremented by 1.
  • Segment length 12-bit field, ranging from 0 to 4095, indicating the length of the basic description table, including the table identification number, excluding the CRC_32 field, and the unit is byte.
  • Segment number 4-bit field, value range 0 ⁇ 14, indicating the basic description table segment number.
  • Number of segments 4-bit field, ranging from 1 to 15, indicating the number of segments in the basic description table.
  • Network level 4-bit field, as defined in Table 4 of GY/T220.2-2006.
  • Network number 12-bit field, as defined in Table 3 of GY/T220.2-2006.
  • Local time offset 6-bit field, the highest bit indicates the time zone polarity. When set to '0, it means the local time is earlier than UTC time (usually east of Greenwich). When T is set, it means the local time is later than UTC time. The last 5 digits represent the time offset, ranging from 0 to 24, in units of 0.5 hours.
  • Character Encoding Type 4-bit field, indicating the encoding character set used by ESG text by default. In other parts of this document, if the coded character set is not explicitly defined, the coded character set specified by the field is used by default.
  • Number of ESG service logical channels 4-bit field, ranging from 1 to 15, indicating the value of the subsequent loop body Ni.
  • the ESG service identifier is a 16-bit field, which indicates the service identifier of the logical channel of the ESG service.
  • Number of ESG data types 4-bit field, ranging from 0 to 15, indicating the value of the subsequent loop body N 2 .
  • each ESG data type description includes an ESG data type identifier, a number of data blocks, and a plurality of data block descriptions.
  • the data block description includes the data block identifier, the data block version number, the ESG service logical channel index identifier, and the like.
  • ESG data type identifier 4-bit field, which identifies the ESG data type carried by the ESG data payload, see Table 2, where the ESG data type can correspond to one or more ESG data tables.
  • Number of data blocks 8-bit field, ranging from 0 to 255, indicating the value of the subsequent loop body M.
  • Data block identifier 8-bit field that identifies the data block to which the ESG data payload belongs. Uniquely identify a block of data along with the ESG data type identifier.
  • Data block version number 4-bit field, indicating the current version number of the data block. It is cyclically valued in the range of 0 ⁇ 15 and incremented by 1 when the data block changes.
  • the ESG service logical channel index identifier a 4-bit field, an index value, and the service identifier of the ESG service logical channel is obtained according to the ESG service identifier index table established above.
  • the ESG service logical channel index identifier is an index identifier in the foregoing ESG service logical channel description.
  • CRC—32: 32-bit field, CRC-32 decoding model see Appendix A of GY/T 220.2-2006.
  • the ESG transmission method of the present invention can transmit the multiplexed subframe-related ESG information together with the audio and video data, so that the terminal can receive the service data only when the same time slot is opened. , Received these ESG information.
  • the invention can transmit the ESG data by using a separate service multiplexing subframe, and transmit a large amount of ESG information faster.
  • the method can be used for the rotation of the complete ESG data information (for example, one week ESG, etc.), and the terminal generally requires when the terminal starts the mobile multimedia application.
  • the complete ESG data information may be received first; or the ESG data may be transmitted using the multiplexed frame of the control logical channel along with the basic description table. .
  • the present invention is directed to an ESG transmission method for a mobile broadcast multiplex transmission system, so that ESG information can be transmitted through a traffic channel together with audio and video data, or can be separately transmitted through a traffic channel or a control channel, and flexible ESG transmission for a mobile multimedia broadcast system and Business application development provides a very convenient foundation.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Description

一种移动多媒体广播电子业务指南的传输方法
技术领域
本发明涉及移动多媒体广播技术，尤其涉及一种移动多媒体广播电子业 务指南 （ESG ) 的传输方法。 背景技术
手机电视业务是移动多媒体广播技术的典型应用， 对移动运营商来说， 可以最大限度的利用网络能力， 提供更加丰富的业务； 而对广播公司来说， 是电视传播的新渠道， 可以充分利用内容资源， 扩大用户范围， 实现广播网 络的移动化。 我国 2006年的手机用户已接近 4亿， 而我国拥有电视机的家 庭也已经达到 3.5亿左右。 可以想象， 两者结合所产生的手机电视业务将产 生一个庞大的消费市场。 据国外的预测显示， 到 2010年全世界将有 1.2 亿手机电视用户， 我国的用户数也将接近 4000万。 面对庞大的移动用户群 和广播电视用户群，各国的网絡运营商和设备制造商都对此业务投入了极大 的关注， 希望使其成为移动多媒体业务的新增长点。 因此， 相对国内的相关 产业而言，手机电视是一个难得的发展机遇， 同时也是一个自主创新的绝好 机会。
手机电视作为一种新兴的多媒体业务， 它的实现是多种技术组合的结 果，概括起来主要包括三个方面的实现技术：下行传输技术、上行交互技术、 业务层实现技术等。
下行传输技术是该业务实现的关键，负责实现电视节目信息和内容向用 户的传送。 目前业界对这部分技术的关注程度非常高，提出的实现技术也比 较多样，概括起来可以将不同的下行传输技术大致分为三种实现方式： （1 ) 基于移动网络技术的实现方式； （2 )基于卫星传输技术的实现方式； （3 ) 基于地面数字广播网技术的实现方式。
对于第 （3 )种方式， 实现方式所使用的技术源自地面数字广播电视传 输技术， 使用的频率一般为广播电视频段。 为适应移动终端的特点， 有些技 术在原有技术基础上加以改进成为手机电视技术，而另一些技术则同时针对 地面数字广播电视系统和手机电视系统而设计。此类技术是现在国际上关注 较多的一类技术， 也是方案最多的一类技术， 典型的技术包括欧洲的
DVB-H, 美国高通的 MEDIAFLO、 韩国的 T-DMB、 日本的 ISDB-T等。 其 中欧美的两种技术是专门针对移动终端设计的， 日韩的两种技术则既可以应 用到移动终端也可以应用到数字电视。我国清华大学和上海交大分别在其数 字电视标准 DMB-TH和 ADTB-T的基础上研究了国内的技术。 另外， 国内 新岸线公司也在欧洲 DAB 技术的基础上研究出地面移动多媒体广播技术 T-MMB。
移动多媒体广播的 ESG (电子业务指南）信息主要包括的数据信息有： 业务信息、 业务扩展信息、 内容信息、 业务参数信息和编排信息。 如何灵活 使用业务信道复用传输 ESG信息， 是目前需要解决的问题。
发明内容
本发明要解决的技术问题就是提供一种移动多媒体广播电子业务指南 的传输方法， 可实现 ESG信息的传送， 为移动多媒体广播系统灵活地进行 ESG信息传输和业务应用开发提供便利的基础。
为了解决上述技术问题，本发明提供了一种移动多媒体广播电子业务指 南的传输方法， 包括如下步骤：
( a ) 复用器接收电子业务指南信息；
( b ) 复用器将电子业务指南信息复用到复用帧中， 所述复用帧的复用 净荷包括一个或多个复用子帧；
( c )复用器将所述复用帧发送给广播发射站；
( d ) 广播发射站将所述复用帧调制后发射给移动用户终端。
进一步地，所述电子业务指南信息包括电子业务指南数据和电子业务指 南基本描述表。 进一步地， 所述复用帧用于承载业务信息或者控制信息，每个所述复用 帧分配有一个复用帧标识，所述复用帧标识对应一个控制逻辑信道或者业务 逻辑信道。
进一步地， 步骤（b ) 中， 复用器将所述电子业务指南数据复用到承载 业务信息的复用帧，该复用帧的复用子帧包括子帧头和数据段， 所述数据段 包括数据段头和多个数据单元， 所述数据段头包含数据单元数量以及 CRC 校验码， 在所述数据段头中或者各个数据单元的前面写入有数据单元参数， 所述数据单元参数包括每一数据单元的数据单元类型和数据单元长度信息。
进一步地， 所述电子业务指南数据使用单独的复用子帧传输， 和 /或将 音、视频数据与所述电子业务指南数据一起在复用子帧内传输， 所述复用子 帧的子帧头指示该复用子帧是否包含音频段或视频段或数据段。
进一步地， 所述电子业务指南数据包括业务信息、 业务扩展信息、 编排 信息、 内容信息、 业务参数信息； 某次传输的电子业务指南数据是这些全部 或部分电子业务指南数据类型中数据记录的全部或部分，并在相应数据单元 的数据头用电子业务指南数据类型标识来标识所述数据净荷承载的电子业 务指南数据的数据类型。
进一步地， 所述数据单元包括数据头、 数据净荷和 CRC校验码， 所述 步骤（b ) 中， 当所述电子业务指南信息的数据长度大于所述数据单元的最 大数据净荷长度时，则将所述电子业务指南数据切分成不同数据节，使用不 同的数据单元分节封装传送，并在各个数据单元的数据头中标明切分的总节 数和本数据单元中电子业务指南数据的节序号。
进一步地， 所述步骤（b ) 中， 对电子业务指南数据进行了压缩处理， 并在所述数据头中标明压缩时使用的编码类型； 步驟（d ) 中， 所述用户终 端根据该编码类型解压数据。
进一步地， 所述步骤（b ) 中， 将所述电子业务指南数据分成为多个电 子业务指南数据块， 并在电子业务指南头中加以数据块标识来区分，该数据 块的划分规则包括按播放时间来划分，并使用所述数据单元的数据净荷传输 电子业务指南数据。
进一步地， 所述步骤（b ) 中， 复用器将所述电子业务指南基本描述表 复用到承载控制信息的复用帧，该复用帧的复用净荷包括一个或多个控制信 息表， 所述控制信息表包括至少一个所述电子业务指南基本描述表， 所述电 子业务指南基本描述表用于描述了传输 ESG数据的复用子帧的配置。
进一步地， 所述电子业务指南基本描述表中包括以下字段中一个或多 个： 表标识号、 ESG更新序号、 段长度、 段序号、 段数量、 网络级别、 网络 号、 本地时间偏移、 字符编码类型、 ESG业务逻辑信道数量、 ESG业务逻 辑信道描述、 ESG数据类型数量、 ESG数据类型描述、 CRC— 32。
进一步地， 所述 ESG业务逻辑信道描述包括以下字段中一个或多个： 索引标识、 ESG业务标识； 所述 ESG数据类型描述包括以下字段中一个或 多个： ESG数据类型标识、 数据块数量、 数据块描述。
进一步地， 所述数据块描述包括以下字段中一个或多个： 数据块标识、 数据块版本号、 ESG业务逻辑信道索弓 I标识。
进一步地， 所述复用器的复用周期为 1秒钟， 将该复用周期划分为 40 份时隙， 业务、 控制逻辑信道上的复用帧和时隙映射由系统配置决定， 所述 复用帧标识的范围为 0至 39, 最大为 39, 其中复用帧标识为 0的复用帧映 射到控制逻辑信道， 其他复用帧映射到业务逻辑信道。
进一步地， 所述电子业务指南数据使用业务逻辑信道的复用帧传输； 或 者随电子业务指南基本描述表使用控制逻辑信道的复用帧传输；或者部分电 子业务指南数据使用控制逻辑信道的复用帧传输，部分电子业务指南数据使 用业务逻辑信道的复用帧传输。
本方法是针对移动多媒体广播复用传输系统的 ESG传输方法， 与其他 如 DVB-H、 MEDIAFLO等传输 ESG方法互不相同。 同样完成各自体系的 ESG传输功能。 本方法使 ESG信息可以与音视频数据一起通过业务信道传 输， 也可以单独通过业务信道传输。 为移动多媒体广播系统的灵活地进行 ESG传输， 以及业务应用开发提供了极便利的基础。 附图概述
图 1是本发明移动多媒体广播系统的总体结构示意图； 图 2是本发明实施例业务信道复用结构的示意图；
图 3是图 2所示复用子帧中的数据段（MF—ID != 0 ) 的结构示意图； 图 4是本发明实施例 ESG数据单元的结构示意图；
图 5是本发明实施例 MF—ID==0的复用帧中复用帧净荷的结构示意图； 图 6是本发明实施例 ESG基本描述表的结构示意图。 本发明的较佳实施方式
下面结合附图及具体实施例对本发明进行详细说明。
如图 1所示， 本方法的逻辑实体包括复用器、 广播发射站和移动用户终 端 ( UE )等》
复用器： 获取 ESG、 以及其他音视频等数据， 将 ESG相关数据复用到 逻辑信道中， 并交给广播发射站调制发射。
广播发射站： 调制发射复用后的数据。
移动用户终端 UE: 包括手机等移动通讯设备。 可以接收广播网络信道 传送的数据， 例如 ESG信息， 并对 ESG緩存、 更新、 查询、 展示。
移动多媒体广播 ESG的传输方法包括如下步骤：
( 1 ) 复用器接收 ESG信息；
( 2 )复用器将 ESG信息复用到指定的复用帧中， 其中， 复用帧可以是 承载控制信息的复用帧， 或者承载业务信息的复用帧；
( 3 ) 复用器将复用帧发送给广播发射站；
( 4 )广播发射站将复用帧调制后发射给移动用户终端。
所述移动用户终端接收广播发射站发送的数据， 进行解调， 用户就可以 使用终端获取和展示 ESG信息， 发现和使用业务。
上述被复用的 ESG信息包括 ESG数据和 ESG基本描述表，文中的 ESG 数据包括电子业务指南 XML格式的数据。 这些数据元素表达的数据实例包 括： 业务表、 业务扩展信息表、 内容表、 业务参数表和编排表等的记录， 但 本发明不局限于此格式。
本发明的复用系统采用基于频点， 分时复用方式。
如图 2所示， 多个复用帧组成广播信道帧， 复用帧是由复用帧头、 复用 净荷、 填充部分组成。
例如， 确定 1秒钟为复用周期， 划分为 40份时间段（时隙） ， 复用单 元就是 25ms。 逻辑上的复用帧和时隙映射由系统配置决定。
一个复用帧对应一个控制或业务逻辑信道，每个复用帧分配一个复用帧 标识 MF— ID, MF— ID范围为 0至 39, 最大为 39, 其中 MF—ID ==0的复用 帧映射到控制逻辑信道。
有两种类型的复用帧： （ 1 ) MF_ID == 0的复用帧， 用来传输系统控制 信息； （ 2 ) MFJD != 0的复用帧， 用来传输业务信息。 下面分别对其结构 进行详细的说明。
MF— ID != 0复用帧的复用净荷一般都是由多种数据的复用子帧组成，复 用子帧用途各有不同，如不同电视频道、配置控制信息、 ESG信息等的传输。 复用子帧数量在 1到 15个。 这类复用子帧中包括子帧头、 视频段、 音频段 和数据段，在一个复用子帧中也可以只包含视频段、音频段和数据段中的一 种或两种，可以使用复用子帧头指示该业务信道的复用子帧中是否包含音频 段、 视频段或数据段。
从 ESG信息的复用方式看， 在复用到承载业务信息的复用帧中时， 可 以使用单独的复用子帧传输 ESG数据， 即在该复用子帧中没有音频段和视 频段， 而数据段只是用于 ESG数据传输。 也可以将音视频数据和相关 ESG 信息一起在复用子帧内传输， 即随路传输； 或者， 在不同的复用子帧上同时 采用这两种方式。
如图 3所示， 数据段可以包容多种内容， 其包括数据段头和多个数据单 元， 在数据段头定义了这些数据的数据单元数量、 数据单元参数以及 CRC 校验码， 其中数据单元参数包括对各个数据单元类型和数据单元长度的描 述。数据单元参数也可以分开放在相应的数据单元的前面而不是集中在数据 段头中 ,这里定义特定的数据类型值来标识数据单元中包含的是 ESG数据， 以下也称这种数据单元为 ESG数据单元。
由于一个 ESG数据单元的 ESG数据净荷长度是有限的， 一般系统对此 会设置最大值， 比如 64Kbytes。 当一个 ESG数据单元大小不够传送 ESG数 据时， 就需要进行分节， 即将处理好的 ESG数据块切分成不同数据节， 作 为某个 ESG数据单元的 ESG数据净荷，使用不同 ESG数据单元传送。对于 格式化数据， 如果传输时分节， UE—般要收全所有节汇总后才解析。 此夕卜， 为了提高传输效率， ESG数据还可以压缩后再进行传输。
ESG数据单元封装在数据段中， 本实施例中， 该 ESG类型数据单元的 结构如图 4所示， 由数据头、 数据净荷和 CRC校验码组成。
数据头包括以下字段： 数据块标识、 ESG数据类型标识、 编码类型、 节 序号、 总节数等组成。 其中：
数据块标识： 表示 ESG数据净荷所归属的数据块。 系统中多个 ESG数 据块（如今天的 ESG作为一个 ESG数据块，一周其他时间的 ESG作为一个 ESG数据块） 同时轮播时， 需要用 ESG表头的数据块标识来区分。 每个数 据块可以由多种 ESG数据类型的 ESG数据组合得到， 如将当天要广播的各 种 ESG数据组合为一个数据块。
ESG数据类型标识： 标识数据净荷承载的 ESG数据的类型， 本实施例 中 ESG数据类型即指 ESG数据净荷中的数据所属的 ESG数据表。可以通过 定义表标识符常量列表， 用该列表中的表标识符作为此处的 ESG数据类型 标识。 与数据块标识一起唯一确定一个数据节归属的数据块。
编码类型： 表示 ESG数据净荷使用的压缩编码类型。 可以使用 3位字 段定义， 参见表 1。 编码类型
值 (b2blb0) 类型 000 不压缩
001 GZIP压缩
010 - 111 保留
其中 GZIP压缩编码采用 GZIP压缩算法压缩， 参见 IETF RFC 1952。 节序号： 表示承载当前传输数据的节序号。 即表示该 ESG数据净荷传 输的是所属 ESG数据块的第几个数据节。 节序号是对这些数据节的一个编 号。 最小值为 1 , 最大值为该 ESG表头的数据总节数。
总节数： 表示承载当前传输数据的总节数。 即表示该 ESG数据在 ESG 数据单元中传输， 共分为多少数据节来复用传送。 即 ESG数据被划分为多 少个 ESG数据净荷， 用了多少个数据单元来传输。
ESG数据净荷的字节长度可以使用该 ESG数据单元长度和 ESG表头长 度等确定值推算得来， 即为： 数据单元长度- （ESG头长度 + CRC长度）。 其中 ESG头长度和 CRC长度设为固定值。
复用帧头的标识 MF— ID==0的复用帧用于承载控制信息， 如图 5所示， 该复用帧中的复用帧净荷包括多个控制信息表，每个复用子桢由一个控制信 息表组成。 传输时， 由于 ESG各表数据应用情况、 实时性要求以及数据量 等不同， 广播系统对各个表数据的传输重复率（频度）需求不同。 因此， 系 统一般都会分表生成 ESG数据， 分别调度传输。 这样， 多种 ESG表数据分 开使用各自不同的 ESG数据单元来传输， 某次传输的 ESG信息是这些全部 或部分类型的表中， 数据记录的全部或部分。 同一类 ESG表的数据一般在 一个数据单元传输， 除非特别大， 需要分节。
本实施例是将上述 ESG数据复用到业务逻辑信道的复用帧传输， 在本 发明的其他实施例中， 也可以将 ESG数据随 ESG基本描述表复用到承载控 制信息的复用帧中。即将 ESG信息包括 ESG数据和 ESG基本描述表均使用 控制逻辑信道的复用帧传送。 ESG基本描述表是一种控制信息表，其表数据 描述了传输 ESG数据的复用子帧的配置 ,包括 ESG业务逻辑信道描述、 ESG 数据类型数量及 ESG数据类型参数、 ESG表参数等内容。 图 6示出了 ESG 基本描述表的展开结构， 与上面提到的 ESG数据单元或者复用子帧的结构 都不相同，是在 MF_ID==0的复用帧中直接写入上述内容，一个表的数据作 为一个特殊的复用子帧， 不再封装成图 2〜4的复用子帧和数据单元结构。该 表中的 ESG业务逻辑信道是指传输 ESG数据的业务逻辑信道， ESG业务逻 辑信道映射到 1~39#复用帧的一个或多个复用子帧中。
如图 6所示， ESG基本描述表包括以下内容：
表标识号： 8位字段，基本描述表标识号的分配见 GY/T220.2-2006表 2。
ESG更新序号： 4位字段， 取值范围 0 ~ 15, 表示基本描述表的当前更 新序号， 当基本描述表的信息发生变化时， ESG更新序号循环递增加 1。
段长度： 12位字段， 取值范围 0 ~ 4095, 表示基本描述表的长度， 包括 表标识号， 不包括 CRC— 32字段， 单位为字节。
段序号： 4位字段， 取值范围 0 ~ 14, 表示基本描述表段序号。
段数量： 4位字段， 取值范围 1 ~ 15, 表示基本描述表分割的段数量。 网络级别： 4位字段, 定义见 GY/T220.2-2006表 4。
网络号: 12位字段， 定义见 GY/T220.2-2006表 3。
本地时间偏移： 6位字段， 最高位指示时区极性， 当置 '0， 时， 表示 本地时间早于 UTC时间 （通常在格林威治以东） ， 当置 T 时， 表示本地 时间晚于 UTC时间。 后 5位表示时间偏移量， 取值范围 0 ~ 24, 单位为 0.5 小时。
字符编码类型： 4位字段， 指示 ESG文本默认采用的编码字符集。 本文 其他部分若没有明确定义编码字符集，则默认采用由该字段指定的编码字符 集。
ESG业务逻辑信道数量： 4位字段， 取值范围 1 ~ 15, 表示后续循环体 Ni的值。
个£80业务逻辑信道描述， 邻接在 ESG业务逻辑信道数量之后， 包 括索引标识和 ESG业务标识号， 才艮据所述索引标识建立 ESG业务标识索引 表。 其中 ESG业务标识为 16位字段， 表示 ESG业务逻辑信道的业务标识。
ESG数据类型数量： 4位字段， 取值范围 0 ~ 15, 表示后续循环体 N2 的值。
N2个 ESG数据类型描述（或称为 ESG数据类型参数） ， 邻接在 ESG 数据类型数量之后， 每一 ESG数据类型描述又包括 ESG数据类型标识、 数 据块数量和多个数据块描述。 而数据块描述又包括数据块标识、数据块版本 号、 ESG业务逻辑信道索引标识等。
ESG数据类型标识： 4位字段， 标识 ESG数据净荷承载的 ESG数据类 型， 见表 2, —种 ESG数据类型可对应一个或多个 ESG数据表。
ESG数据类型
Figure imgf000012_0001
数据块数量： 8位字段， 取值范围 0 ~ 255, 表示后续循环体 M的值。 数据块标识： 8位字段， 标识 ESG数据净荷所属的数据块。 跟 ESG数 据类型标识一起唯一确定一个数据块。
数据块版本号： 4位字段， 表示数据块当前的版本号， 在 0 ~ 15范围内 循环取值， 当数据块发生变更时递增加 1。
ESG业务逻辑信道索引标识： 4位字段， 索引值， 根据上文建立的 ESG 业务标识索引表获取 ESG业务逻辑信道的业务标识。
该 ESG业务逻辑信道索引标识即为前述的 ESG业务逻辑信道描述中的 索引标识。 CRC— 32: 32位字段， CRC—32解码模型见 GY/T 220.2-2006附录 A。
综上所述， 本发明的 ESG传输方法可以将复用子帧相关 ESG信息， 与 其音视频数据一起进行传输，使得终端只在开启同一个时隙的情况下， 就可 以在接收到业务数据同时， 接收到这些 ESG信息。 本发明可以将 ESG数据 使用单独业务复用子帧传输， 较快传送大量 ESG信息， 该方式可用于完整 ESG数据信息 （例如一周 ESG等） 的轮播， 终端启动移动多媒体应用时， 一般会要求先收全该完整 ESG数据信息； 或者， 也可以将 ESG数据随基本 描述表使用控制逻辑信道的复用帧传输。.
总之， 由于可以灵活使用业务信道复用传输 ESG信息， 为移动多媒体 广播系统的 ESG传输, 以及业务应用， 提供了极大的灵活性。
工业实用性
本发明是针对移动广播复用传输系统的 ESG传输方法， 使 ESG信息可 以与音视频数据一起通过业务信道传输，也可以单独通过业务信道或控制信 道传输， 为移动多媒体广播系统灵活进行 ESG传输以及业务应用开发提供 了极便利的基础。

Claims

权 利 要 求 书
1、 一种移动多媒体广播电子业务指南的传输方法， 包括如下步骤：
( a ) 复用器接收电子业务指南信息；
( b ) 复用器将电子业务指南信息复用到复用帧中， 所述复用帧的复用 净荷包括一个或多个复用子帧；
( c ) 复用器将所述复用帧发送给广播发射站；
( d ) 广播发射站将所述复用帧调制后发射给移动用户终端。
2、 根据权利要求 1所述的传输方法， 其特征在于：
所述电子业务指南信息包括电子业务指南数据和电子业务指南基本描 述表。
3、 根据权利要求 2所述的传输方法， 其特征在于：
所述复用帧用于承载业务信息或者控制信息，每个所述复用帧分配有一 个复用帧标识， 所述复用帧标识对应一个控制逻辑信道或者业务逻辑信道。
4、 根据权利要求 3所述的传输方法， 其特征在于：
步骤（b ) 中， 复用器将所述电子业务指南数据复用到承载业务信息的 复用帧，该复用帧的复用子帧包括子帧头和数据段， 所述数据段包括数据段 头和多个数据单元， 所述数据段头包含数据单元数量以及 CRC校验码， 在 所述数据段头中或者各个数据单元的前面写入有数据单元参数，所述数据单 元参数包括每一数据单元的数据单元类型和数据单元长度信息。
5、 根据权利要求 4所述的传输方法， 其特征在于：
所述电子业务指南数据使用单独的复用子帧传输， 和 /或将音、 视频数 据与所述电子业务指南数据一起在复用子帧内传输，所述复用子帧的子帧头 指示该复用子帧是否包含音频段或视频段或数据段。
6、 根据权利要求 4所述的传输方法， 其特征在于：
所述电子业务指南数据包括业务信息、 业务扩展信息、 编排信息、 内容 信息、业务参数信息； 某次传输的电子业务指南数据是这些全部或部分电子 业务指南数据类型中数据记录的全部或部分，并在相应数据单元的数据头用 电子业务指南数据类型标识来标识所述数据净荷承载的电子业务指南数据 的数据类型。
7、 根据权利要求 4所述的传输方法， 其特征在于：
所述数据单元包括数据头、数据净荷和 CRC校验码，所述步骤（b )中， 当所述电子业务指南信息的数据长度大于所述数据单元的最大数据净荷长 度时， 则将所述电子业务指南数据切分成不同数据节，使用不同的数据单元 分节封装传送，并在各个数据单元的数据头中标明切分的总节数和本数据单 元中电子业务指南数据的节序号。
8、 根据权利要求 4所述的传输方法， 其特征在于：
所述步驟（b ) 中， 对电子业务指南数据进行了压缩处理， 并在所述数 据头中标明压缩时使用的编码类型； 步^ _ ( d ) 中， 所述用户终端根据该编 码类型解压数据。
9、 根据权利要求 4所述的传输方法， 其特征在于：
所述步骤（b ) 中， 将所述电子业务指南数据分成为多个电子业务指南 数据块， 并在电子业务指南头中加以数据块标识来区分，该数据块的划分规 则包括按播放时间来划分，并使用所述数据单元的数据净荷传输电子业务指 南数据。
10、 根据权利要求 3所述的传输方法， 其特征在于：
所述步驟（b ) 中， 复用器将所述电子业务指南基本描述表复用到承载 控制信息的复用帧，该复用帧的复用净荷包括一个或多个控制信息表，所述 控制信息表包括至少一个所述电子业务指南基本描述表，所述电子业务指南 基本描述表用于描述了传输 ESG数据的复用子帧的配置。
11、 根据权利要求 10所述的传输方法， 其特征在于：
所述电子业务指南基本描述表中包括以下字段中一个或多个： 表标识 号、 ESG更新序号、 段长度、 段序号、 段数量、 网络级别、 网络号、 本地时 间偏移、 字符编码类型、 ESG业务逻辑信道数量、 ESG业务逻辑信道描述、 ESG数据类型数量、 ESG数据类型描述、 CRC_32。
12、 根据权利要求 10所述的传输方法， 其特征在于：
所述 ESG业务逻辑信道描述包括以下字段中一个或多个： 索引标识、 ESG业务标识； 所述 ESG数据类型描述包括以下字段中一个或多个： ESG 数据类型标识、 数据块数量、 数据块描述。
13、 根据权利要求 10所述的传输方法， 其特征在于：
所述数据块描述包括以下字段中一个或多个： 数据块标识、数据块版本 号、 ESG业务逻辑信道索引标识。
14、 根据权利要求 1、 或 4、 或 10所述的传输方法， 其特征在于： 所述复用器的复用周期为 1秒钟， 将该复用周期划分为 40份时隙， 业 务、控制逻辑信道上的复用帧和时隙映射由系统配置决定， 所述复用帧标识 的范围为 0至 39, 最大为 39, 其中复用帧标识为 0的复用帧映射到控制逻 辑信道， 其他复用帧映射到业务逻辑信道。
15、 根据权利要求 2或 3所述的传输方法， 其特征在于：
所述电子业务指南数据使用业务逆辑信道的复用帧传输；或者随电子业 务指南基本描述表使用控制逻辑信道的复用帧传输；或者部分电子业务指南 数据使用控制逻辑信道的复用帧传输，部分电子业务指南数据使用业务逻辑 信道的复用帧传输。
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