WO2008106838A1 - Procédé de transmission de multicanaux pour un guide de service électronique dans une diffusion multimédia mobile - Google Patents

Procédé de transmission de multicanaux pour un guide de service électronique dans une diffusion multimédia mobile Download PDF

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Publication number
WO2008106838A1
WO2008106838A1 PCT/CN2007/001789 CN2007001789W WO2008106838A1 WO 2008106838 A1 WO2008106838 A1 WO 2008106838A1 CN 2007001789 W CN2007001789 W CN 2007001789W WO 2008106838 A1 WO2008106838 A1 WO 2008106838A1
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WO
WIPO (PCT)
Prior art keywords
multiplexing
service
service guide
electronic service
multiplex
Prior art date
Application number
PCT/CN2007/001789
Other languages
English (en)
Chinese (zh)
Inventor
Zunyou Ke
Qinghua Yao
Hailong Wen
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
Publication of WO2008106838A1 publication Critical patent/WO2008106838A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • 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
    • H04N21/25—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
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • 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

Definitions

  • the present invention relates to a mobile multimedia broadcast technology, and in particular to a method for transmitting a mobile multimedia broadcast electronic service guide.
  • Mobile TV services are typical applications of mobile multimedia broadcast technologies.
  • Mobile TV is a new multimedia service. Its implementation is the result of a combination of technologies. It is summarized in three aspects: downlink transmission technology, uplink interaction technology, and business layer implementation technology.
  • the uplink interaction technology is usually implemented through a mobile network, and provides an uplink transmission channel for the implementation of the service to ensure the two-way interaction capability.
  • the service layer implementation technology is responsible for the authentication, charging, service discovery, and acquisition of the mobile TV service.
  • downlink transmission technology is the key to the realization of this service, responsible for the transmission of TV programs to users.
  • the industry pays close attention to this part of the technology, and the proposed implementation techniques are also diverse.
  • different downlink transmission technologies can be roughly divided into three implementation modes:
  • Such technology is improved on the basis of the existing mobile communication network, and provides a downlink broadcast channel to the user, and the frequency used is still the frequency band in which the mobile communication system is located, and is a mobile TV that realizes broadcasting or multicasting through a mobile data network.
  • the business provides the conditions.
  • the technology used in such an implementation is derived from terrestrial digital broadcasting power transmission technology, and the frequency used is: a broadcast television frequency band.
  • some technologies have been improved on the basis of the original technology to become mobile TV technology, while others are designed for terrestrial digital broadcast television systems and mobile TV systems.
  • This type of technology is one of the most popular technologies in the world, and it is also the most popular type of technology.
  • Typical technologies include DVB-E in Europe, MEDIAFLO in Qualcomm, T-DMB in Korea, and ISDB-T in Japan.
  • the two technologies in Europe and America are special The door is designed for mobile terminals, and the two technologies of Japan and South Korea can be applied to both mobile terminals and digital TVs.
  • the electronic service guide (ESG) or the electronic program guide is a multimedia broadcast service information navigation system, and the user can understand the related information of the mobile multimedia broadcast service (including the service name, play time, and content outline) through the ESG. , price, etc., and realize fast retrieval, preview and access to the business; it provides a good navigation mechanism for users to watch TV programs and enjoy information services, so that users can quickly and easily find the programs they care about, and view the attachments of the programs.
  • Information so the electronic service guide needs to be transmitted to the terminal in time, so that the terminal can acquire and display ESG information in time, discover and use the service.
  • the electronic service guide is transmitted to the terminal through the downlink technology.
  • An object of the present invention is to provide a method for multiplexing a mobile multimedia broadcast electronic service guide.
  • the terminal can send and rotate to the terminal in time, and provide convenience for terminal processing. basis.
  • the present invention provides a method for multiplexing a mobile multimedia broadcast electronic service guide, comprising the following steps: - S202, dividing a multimedia broadcast channel into a plurality of channels, including a control channel and at least one traffic channel;
  • the control multiplexing frame that carries the multimedia broadcast control information and the service multiplexing frame that carries the service information are respectively divided into multiple multiplexing subframes.
  • S206. Encapsulate the multimedia broadcast electronic service guide data in at least one multiplex subframe of the service multiplexing frame, and record, in the multiplex subframe of the control multiplex frame, the multiplex subframe of the encapsulated electronic service guide data. Configuration information;
  • the method further includes: S210: The terminal passes the configuration information of the multiplex subframe of the transmission electronic service guide data recorded in the basic description table of the electronic service guide, and performs positioning transmission according to the network information table, the multiplexing configuration table, and the service configuration table.
  • the electronic service guide data multiplexes the frequency and time slots of the subframe, and receives and uses the electronic service guide data.
  • each multiplex frame is divided into a plurality of multiplex subframes by means of frequency point and time division multiplexing.
  • the plurality of control information tables are encapsulated in the multiplex subframe of the control information multiplexing frame, including a network information table, a multiplexing configuration table, a service configuration table, and an electronic service guide basic description table, where the network
  • the information table includes a frequency point and a priority frequency point list used by the multimedia broadcast service
  • the multiplexing configuration table records which channel program services are transmitted, and the correspondence between the services and the multiplex subframes carrying the services, and the multiplexer The correspondence between the frame and the multiplex frame to which it belongs
  • the service configuration table records the correspondence between the channel program and the frequency point at all frequency points
  • the basic description table of the electronic service guide is used to describe the allocation of the data block in the logical channel of the electronic service guide Information such as status and update status: transmitted as a control information table in the control logical channel, including the number of electronic service guide business logic information, electronic service guide service identifier, and the like.
  • the number of service logical channels is used to express how many logical channels are used in the transport electronic service guide data configuration in the basic description table of the service guide.
  • the electronic service guide service identifier indicates the service identifier of the electronic service guide business logical channel.
  • the present invention adopts a unique multiplexing transmission system, uses a plurality of separate multiplexing subframes to transmit electronic service guide data, multiplexes concurrent transmissions, and uses control channels to indicate the transmission of electronic service guide data.
  • the configuration of the multiplex subframe enables the terminal to obtain the electronic service guide data transmitted by multiple multiplex subframes according to the configuration indication, thereby improving the reliability, flexibility, and controllability of the transmission of the electronic service guide, and facilitating the terminal and the electronic service.
  • FIG. 1 is a schematic structural diagram of a multiplexing transmission system of the present invention
  • 2 is a flow chart of a method for multiplexing a mobile multimedia broadcast electronic service guide according to the present invention
  • FIG. 3 is a schematic diagram of a multiplexing method according to the present invention
  • FIG. 4 is a control multiplexing frame payload according to the present invention.
  • Schematic. DETAILED DESCRIPTION OF THE EMBODIMENTS In order to facilitate a deep understanding of the technical content of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. As shown in FIG.
  • the multiplex transmission architecture of the present invention includes: ESG data, a multiplexer, a broadcast transmitting station, and a mobile user terminal (UE).
  • the ESG data represents the records of the original ESG data, including multiple ESG tables, such as business tables, content schedules, access tables, purchase tables, purchase channel tables, and so on.
  • the ESG information of a transmission may be all or part of these tables.
  • the ESG information to be transmitted is expressed by the above-described record and then received by the multiplexer.
  • the multiplexer of the present invention divides the multimedia broadcast channel into a control channel and at least one traffic channel, and each multiplex frame (MF) corresponds to a control or traffic channel.
  • MF multiplex frame
  • Each multiplex frame is assigned a multiplex frame identifier MFJD, the MFJD range is 0 to 39, and the maximum is 39, and the ESG information data, AV data, and other configuration control data are multiplexed into the designated multiplex frame.
  • 2 is a flow chart of a method of multiplexed mobile multimedia broadcast electronic service guide in accordance with the present invention. As shown in FIG. 2, the method for multiplexing a mobile multimedia broadcast electronic service guide of the present invention includes the following steps:
  • the multimedia broadcast channel is divided into multiple channels, including one control channel and at least one traffic channel.
  • S204. The control multiplexing frame that carries the multimedia broadcast control information and the service multiplexing frame that carries the service information are respectively divided into multiple complexes. Use subframes;
  • S206 Encapsulate the multimedia broadcast electronic service guide data in at least one of the service multiplexing frames. Recording, in the subframe, the configuration information of the multiplex subframe of the encapsulated electronic service guide data in the multiplex subframe of the control multiplex frame;
  • the method further includes: S210: The terminal passes the configuration information of the multiplex subframe of the transmission electronic service guide data recorded in the basic description table of the electronic service guide, and performs positioning transmission according to the network information table, the multiplexing configuration table, and the service configuration table.
  • the electronic service guide data multiplexes the frequency and time slots of the subframe, and receives and uses the electronic service guide data.
  • each multiplex frame is divided into a plurality of multiplex subframes by means of frequency point and time division multiplexing.
  • the plurality of control information tables are encapsulated in the multiplex subframe of the control information multiplexing frame, including a network information table, a multiplexing configuration table, a service configuration table, and an electronic service guide basic description table, where the network
  • the information table includes a frequency point and a priority frequency point list used by the multimedia broadcast service
  • the multiplexing configuration table records which channel program services are transmitted, and the correspondence between the services and the multiplex subframes carrying the services, and the multiplexer The correspondence between the frame and the multiplex frame to which it belongs
  • the service configuration table records the correspondence between the channel program and the frequency point at all frequency points
  • the basic description table of the electronic service guide is used to describe the allocation of the data block in the logical channel of the electronic service guide Information such as status and update status : transmitted as a control information table in the control logical channel, including the number of electronic service guide business logic information, electronic service guide service identifier, and the like.
  • the number of service logical channels is used to express how many logical channels are used in the transport electronic service guide data configuration in the basic description table of the service guide.
  • the electronic service guide service identifier indicates the service identifier of the electronic service guide service channel.
  • the structure of a multiplex frame is composed of a multiplexed frame header, a multiplexed frame payload, and a padding portion.
  • the present invention divides the multiplexing payload of the control multiplex frame and the service multiplex frame into a plurality of multiplex subframes (MSF).
  • MSF multiplex subframes
  • the invention adopts frequency-based and time-division multiplexing to divide the multiplexed frame.
  • the logical multiplexing frame and time slot mapping is determined by the system configuration.
  • the present invention encapsulates the service guide data of the multimedia broadcast into multiple multiplex subframes of the service multiplex frame, and records the configuration information of the multiplex subframe of the encapsulated service guide data in the multiplex subframe of the control multiplex frame. And mapping the control multiplex frame to the control channel transmission, and mapping the service multiplex frame to the traffic channel transmission.
  • the control information table includes a network information table (NIT), a multiplexing configuration table (MCT), a (continuous/non-persistent) service configuration table (SCT), an emergency broadcast table, an ESG basic description table (EDT), and the like, and the above control information and The transmission of ESG data is related, as follows:
  • the NIT includes a list of broadcast networks, frequency points used, a list of priority frequency points, and network time information. Each frequency point is the frequency of the multiplexed transmission.
  • the network information table allows the receiving end to know at least one priority frequency point to establish an initial contact with the broadcast network.
  • the MCT mainly indicates the current frequency division time division multiplexing mode, including how these time slots are allocated and used, which service data is transmitted, and the corresponding relationship between the service data and the correspondence between the multiplexed frame and the multiplexed subframe.
  • the SCT mainly indicates the correspondence between the channel program or data and the frequency point at all frequencies, that is, at which frequency point the program or data is transmitted.
  • the EDT records the configuration of the multiplex subframe for transmitting the ESG data, including the number of ESG tables and the ESG table parameters.
  • the ESG table parameters include the number of ESG service logic information and the ESG service identifier, where: Table identification number: 8-bit field For the allocation of the basic description table identification number, see Table 2 of GY/T220.2-2006.
  • ESG update sequence number 4-bit field, ranging from 0 to 15, indicating 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, ranging from 0 to 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 set to 1, it means local time. 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 encoded character set used by ESG text by default. If the coded character set is not explicitly defined elsewhere in this document, the coded character set specified by this field is used by default.
  • Number of logical channels of the ESG service 4-bit field, ranging from 1 to 15, indicating the value of the subsequent loop body N1.
  • ESG service identifier A 16-bit field that indicates the service identifier of the logical channel of the ESG service.
  • Index identifier A 4-bit field indicating an index of the service identifier of the logical channel of the ESG service, and obtaining an logical channel identifier of the ESG service according to the index identifier.
  • Number of data blocks 12-bit field, ranging from 1 to 4095, indicating the value of the subsequent loop body N2.
  • Data type identifier 4-bit field, identifies the type of ESG data table carried by the ESG data payload, as shown in Table 1. Table 1 ESG data type value (b3b2blb0) type
  • Data block version number 4-bit field, the value range is 0 ⁇ 15 , indicating the current version number of the data block. When the data block changes, the cyclic increment is increased by 1.
  • Data block identifier 8-bit field that identifies the data block to which the ESG data payload belongs. A data block is uniquely identified with the data type identifier.
  • 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 identity may be different when it is desired to identify which of the same or several different multiplex subframes to use to transmit the ESG.
  • the terminal can locate the frequency point and the time slot of the multiplex subframe of the ESG data by using the configuration information of the multiplex subframe of the ESG data recorded in the EDT and jointly using the related data in the SCT and the MCT. And use ESG data information. Therefore, the data identifier and the service identifier also have a corresponding relationship, which facilitates the distribution and transmission of the ESG data volume.
  • a data body is a general term for an instance of ESG data broadcast to a mobile terminal, the content of which contains one or more recorded data of the ESG table.
  • ESG data in XML format it also includes self-describing, self-organizing formatting element information, which can contain data records of one or more ESG tables.
  • one data volume is this week's ESG data, and the other is next week's ESG data.
  • the two data bodies can be separated and transmitted on the multiplex subframes of different ESG service identifiers. Generally, this week's ESG data will be more concerned by users.
  • the terminal should receive and apply the priority first, and the next week's ESG data reception as an optional function.
  • the present invention transmits flexible ESG data by using multiple multiplex subframes, and can record the configuration of multiple multiplex subframes for transmitting ESG data in the control information according to the EDT structure defined in FIG. ESG information data provides protection.
  • the present invention can transmit ESG data concurrently by using multiple multiplex subframes, so that ESG data can be transmitted concurrently, which can be used to solve the contradiction between large amount of ESG data and timely rotation, and can solve problems such as frequent carousel ESG data.
  • the configuration of the multiple multiplex subframes for transmitting the ESG data in the control information is also provided for dynamically allocating the multiplex subframes occupied by the ESG, thereby increasing system flexibility.
  • the present invention uses the control channel to indicate the multiplexing of the ESG, the multiplexed concurrent transmission, and the multiplexed subframe to transmit the ESG, further increasing the performance, reliability, flexibility, and controllability of the ESG transmission, and is beneficial to Improve the performance of ESG and user terminal interaction response.
  • the present invention may have other various embodiments, such as the authentication when the HLR is accessed.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de transmission de multicanaux pour un guide de service électronique dans une diffusion multimédia mobile. Il comprend les étapes suivantes : S202, les canaux de diffusion multimédia sont divisés en plusieurs canaux comprenant un canal de commande et au moins un canal de service; S204, la trame de multiplexage de commande portant des informations de commande de diffusion multimédia et la trame de multiplexage de service portant des informations de service sont divisées en plusieurs sous-trames de multiplexage; S206, les données de guide de service électronique dans la diffusion multimédia sont encapsulées dans au moins une sous-trame de multiplexage et les informations de configuration de la sous-trame de multiplexage desdites données de guide de service électronique encapsulées sont enregistrées dans la sous-trame de multiplexage de la trame de multiplexage de commande; S208, les trames de multiplexage de commande sont mappées sur le canal de commande devant être transmis et les trames de multiplexage de service sont mappées sur le canal de service devant être transmis.
PCT/CN2007/001789 2007-03-03 2007-06-06 Procédé de transmission de multicanaux pour un guide de service électronique dans une diffusion multimédia mobile WO2008106838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710073442.9 2007-03-03
CNB2007100734429A CN100505888C (zh) 2007-03-03 2007-03-03 一种移动多媒体广播电子业务指南多路传输的方法

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CN101557266B (zh) * 2008-04-10 2012-01-04 国家广播电影电视总局广播科学研究院 一种基于cmmb信道实现ip数据包传输的方法及系统
CN101291238B (zh) * 2008-04-24 2011-12-07 中兴通讯股份有限公司 一种移动多媒体数据广播业务实现方法及系统
CN101272206B (zh) * 2008-05-14 2011-08-24 中兴通讯股份有限公司 一种电子业务指南信息传输的方法及装置
CN101527835B (zh) * 2009-04-13 2011-07-13 中兴通讯股份有限公司 传输移动多媒体广播节目提示信息的方法及相应的装置
CN101754006B (zh) * 2009-07-08 2013-03-20 北京创毅视讯科技有限公司 一种cmmb网络承载移动广播业务的方法和系统
CN102014309A (zh) * 2009-09-08 2011-04-13 中兴通讯股份有限公司 一种传输电子业务指南的方法及系统
CN102064898A (zh) * 2010-10-14 2011-05-18 中兴通讯股份有限公司 节目提示信息的处理方法及电子业务指南系统
CN102014299B (zh) * 2010-11-05 2014-07-16 中兴通讯股份有限公司 一种实现多路数据多频点复用的方法及装置

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