WO2009036635A1 - Difference update system and method for electronic service guide - Google Patents

Difference update system and method for electronic service guide Download PDF

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Publication number
WO2009036635A1
WO2009036635A1 PCT/CN2007/003805 CN2007003805W WO2009036635A1 WO 2009036635 A1 WO2009036635 A1 WO 2009036635A1 CN 2007003805 W CN2007003805 W CN 2007003805W WO 2009036635 A1 WO2009036635 A1 WO 2009036635A1
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WO
WIPO (PCT)
Prior art keywords
esg
data
information
update
differential
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PCT/CN2007/003805
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English (en)
French (fr)
Inventor
Zunyou Ke
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ZTE Corp
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ZTE Corp
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
    • H04H60/83—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks
    • H04H60/85—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are mobile communication networks
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Definitions

  • the invention belongs to mobile multimedia broadcasting technology, and in particular relates to a differential updating system of an electronic service guide and a method thereof.
  • ESG Electronic Service Guide
  • Electronic Program Guide is a multi-media broadcast service information navigation information. It is a method for operators to manage and publish services, and is also a window for users to discover and use services.
  • ESG information users can understand information about mobile multimedia broadcast services, such as service name, play time, content outline, price, etc., and realize fast retrieval, preview and access to services; in addition, ESG information is for users to watch TV programs. And enjoy the information service provides a good navigation mechanism, so that users can quickly and easily find the programs they care about, and view the additional information of the program. Therefore, the ESG client becomes an important path and tool for users to watch programs.
  • the data information sent by the ESG unidirectional broadcast can be divided into multiple data blocks as needed. These data blocks can be classified according to ESG data types, including industry information, programming information, program content information, and business parameter information.
  • the terminal update operation is performed according to the change of the data block version number that can be known.
  • the version numbers of these ESG data blocks cached on each terminal are not the same.
  • the user terminal has different update bases because the existing data block version numbers are different, so the data actually needed to complete the update is different.
  • the number of data blocks to be transmitted during the update process is relatively large, for example, more than 100, the broadcast will take a long time, for example, more than 15 seconds.
  • the way of broadcasting is limited by bandwidth, etc., and it will not be possible to introduce update differences for different user terminals due to different versions of respective ESG data information.
  • the terminal needs to tell the network server its own different update needs. If the mobile multimedia one-way broadcasting system is simply used, the difference requirement of the terminal update cannot be met economically, and the ESG data transmission and the terminal update local ESG data information will be brought true. The current problem.
  • the technical problem to be solved by the present invention is to provide a differential update system and method for the electronic service guide, so as to meet the difference requirement of the user terminal update in the process of updating the local ESG information by the user.
  • the present invention provides a differential update method for an electronic service guide, specifically, after the user terminal initiates a differential ESG update request to the electronic service guide ESG server through the two-way network, the ESG server passes the two-way network.
  • the differential ESG update data satisfying the update request is returned to the user terminal, and the user terminal updates the local ESG data according to the differential ESG update data.
  • the above method may further have the following feature, and the two-way network is a mobile communication network. Further, the foregoing method may further have the following features, the method further includes: the user terminal receiving ESG data information from a one-way broadcast network, and the ESG data information in the local cache and the ESG data received from the one-way broadcast network. After the information is compared, it is determined that a differential ESG update request needs to be initiated, and a differential ESG update request message is sent to the ESG server through the mobile communication network.
  • the foregoing method may further have the following feature: at least one of the ESG data in the local cache and the data type identification information, the data block identification information, and the data block version number information of the ESG data received by the user terminal from the one-way broadcast network.
  • the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.
  • the differential ESG update request message carries any one of data type identification information, data block identification information, or data block version number information or a combination thereof.
  • the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof, where the data block description The information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks.
  • the foregoing method may further have the following feature, where the data block version number in the differential ESG update data is the latest version number.
  • a differential update system for an electronic service guide comprising an electronic service guide ESG server and a user terminal, characterized in that the mobile communication network is further configured to forward the differential ESG update request initiated by the user terminal to the ESG server, and is further used for The ESG server returns the differential ESG update data that satisfies the update request and forwards it to the user terminal.
  • the above system may further have the following features, and further includes a unidirectional broadcast network, configured to broadcast and transmit ESG data to the user terminal, and the user terminal compares the ESG data in the local cache with the ESG data received from the unidirectional broadcast network.
  • the type identification information, the data block identification information, and the data block version number information are compared. When any one of them is different, the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.
  • the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof, where the data block description The information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks.
  • the invention realizes the interaction between the user terminal and the ESG server in the process of updating the ESG data on the basis of the one-way broadcast network of the mobile multimedia broadcasting system, and the difference in the requirements of the terminal to update the ESG information.
  • FIG. 1 is a schematic diagram of a network structure in an embodiment in which the technical solution of the present invention is adopted;
  • FIG. 2 is a flow chart of implementing the ESG differential update by the system shown in FIG. 1;
  • FIG. 3 is a schematic diagram of a structure of a control multiplexing frame carrying information of an ESG basic description table in an embodiment
  • FIG. 4 is a schematic diagram of a broadcast request message sent by a one-way broadcast network to an ESG server in the embodiment
  • FIG. 5 is a schematic diagram of a response message returned by an ESG server to a one-way broadcast network in an embodiment. Preferred embodiment of the invention
  • the main idea of the present invention is to implement an update of an electronic service guide by a mobile user terminal in combination with a mobile communication network based on a one-way broadcast network of a mobile multimedia broadcast system.
  • the mobile communication network realizes the interaction between the user terminal and the ESG server, that is, after receiving the ESG data from the one-way broadcast network, the user terminal compares with the locally stored ESG data information to determine whether to initiate a differential update request, if necessary And sending, by the mobile communication network, a differential ESG update request to the ESG server, and the ESG server returns, to the user terminal, the differential ESG update data that meets the update request by using the mobile communication network, and the user terminal updates the data through the differential ESG to finally the local ESG data.
  • Update The above mobile communication network may also be another two-way network for implementing interaction between the user terminal and the ESG server.
  • a differential update system for an electronic service guide includes an ESG server S101, a one-way broadcast network S102, a user terminal S104, and a mobile communication network S103. among them:
  • the ESG server S101 can update the data information request in response to the difference ESG and send the differential update ESG data.
  • the ESG server For the data block that needs to be updated, the ESG server provides the latest version of the ESG data information of the data block.
  • the existing functions of the ESG server include: managing various data information of the ESG, system configuration data of the ESG server, etc.; generating one or more data blocks for use in broadcast or differential update; and encapsulating ESG data information according to the specification requirements; ESG basic description table; responding to ESG data requests sent by the unidirectional broadcast network; transmitting ESG data to the unidirectional broadcast network.
  • the ESG server divides the ESG data information into a plurality of parts according to rules, that is, a plurality of data blocks, and establishes a correspondence between the data block and the data block identifier, and the data block is a subset of the set of elements having the same data type identifier.
  • the ESG basic description table includes the ESG service identifier, each ESG data type identifier, the data block identifier, and the data block version number.
  • the ESG service identifier used by the data block can be indexed, and the terminal can be quickly searched for the corresponding multiplexing frame. And receive the ESG data block to prompt.
  • Data type identifier used to identify the type of ESG data table carried by the ESG data payload.
  • a data block identifier which is used to identify a data block to which the ESG data payload belongs, and uniquely identify a data block along with the data type identifier.
  • the data block version number indicates the current version number of the data block. When the data block changes, it is incremented by 1 or other agreed way to indicate the version change. For example, different letters are used to indicate the version height.
  • the ESG service identifier indicates the identifier of the ESG service and follows the reuse specification.
  • the response message sent by the ESG server to the ESG data request and the differential ESG update data information request includes at least the following parameters: a data type identifier, a total number of data blocks, a data block description, and a description of each data block includes at least one of the following parameters: : The data block identifier and its version number, and the XML document of the corresponding ESG data information of one or more data blocks.
  • the data type field of the response message sent by the ESG server includes the following three types: indicating basic description table data, ESG information table data, or program prompt information.
  • the one-way broadcast network S102 includes a multiplexer that interfaces with the ESG server S101, a one-way broadcast wireless modulation transmission system, and the like, and has the same functions as the prior art.
  • the multiplexer receives data of three types of data: an ESG basic description table, an ESG information table data, and a program prompt information transmitted by the ESG server.
  • the interface between the multiplexer and the ESG server is communicated by TCP.
  • the ESG server acts as the server side of TCP, and the multiplexer acts as the client of TCP.
  • the multiplexer sends a broadcast ESG request message to the ESG server every 1 second through the interface message, and the ESG server sends one or more response messages.
  • the interface message data can be transmitted in a unified network byte order according to the prior art.
  • the mobile communication network S103 such as GPRS or CDMA, includes a core network and an access network system of the mobile communication network, and supports interactive functions such as PS domain HTTP.
  • the user terminal S104 may be a mobile terminal such as a PDA, a mobile phone, or an in-vehicle mobile station, and its functions include: receiving broadcast ESG data; parsing the broadcasted ESG data; comparing the received ESG data Determining whether to request differential update of ESG data; requesting differential update of ESG data if necessary; receiving differential update ESG data; parsing differential update ESG data;
  • the local ESG data is updated, and the update content includes basic description table information and ESG table data information.
  • the user terminal analyzes the information in the basic description table, and includes at least one of the following parameters: a data type identifier, a data block identifier, and a version number thereof to determine whether an ESG data request needs to be initiated.
  • the request difference update message describes a current state of the user terminal, does not include a parameter or at least includes one of the following parameters: a data type identifier, a data block identifier, and a version number thereof.
  • Figure 2 shows the flow of the differential update method for implementing the electronic service guide of the above system, including the following steps:
  • the multiplexer of the one-way broadcast network sends a broadcast ESG request to the ESG server; in this step, the format of the request message data sent by the multiplexer to the ESG server is as shown in FIG. 4 .
  • the ESG server responds to the multiplexer request, and sends the ESG data to the one-way broadcast network; in this step, the response message data format sent by the ESG server to the multiplexer is as shown in FIG. 5, and the “data communication part of the response message” ", that is, the content of the data payload is defined by the above ESG server data encapsulation method, as in the prior art.
  • the service identifier 2 bytes has no such field for the data request message sent by the multiplexer;
  • this element takes a value of 0; for ESG data information, this element has an arbitrary value in the range of 0x0040 to OxOOFF;
  • the program prompt information is consistent with the service identifier of the service.
  • the maximum length that ESG data information can be sent (The maximum length of the ESG program prompt information and the ESG basic description table is not determined by the message);
  • this number indicates the number of bytes of the actual communication data portion.
  • System time 8 bytes for the data request message sent by the multiplexer this field indicates the time of the multiplexer, the valid bit is 40 bits, the first 16 bits represent the MJD date code; the last 24 bits are encoded by the 4 bit BCD, a total of 6 numbers Indicates the time accurate to the second.
  • This field is not available for data reply messages sent by the ESG server.
  • this part is the ESG data.
  • the one-way broadcast network forwards the ESG data to the terminal.
  • the user terminal receives and analyzes the ESG data
  • the user terminal analyzes the information in the basic description table of the received ESG data, and compares with the corresponding information in the basic description table of the ESG data in the local cache, and can compare one or more information, for example: data type identification information Data block identification information and its version number information, when the received ESG data is different from the information in the basic description table of the ESG data in the local cache, it is determined that the differential ESG update data request needs to be initiated, and step 205 is performed, otherwise the process ends. the entire process.
  • data type identification information Data block identification information and its version number information
  • the terminal may also decide whether to perform step 205 according to the timing of receiving the broadcast ESG data information, such as powering on, watching, browsing ESG, and the like.
  • the user terminal initiates a differential ESG update data request to the mobile communication network.
  • the difference ESG update data request message is as follows:
  • the request message ⁇ & 1 ( ⁇ (1> describes the current state of the user terminal, including at least one of the following parameters: data type identifier, data block identifier or its version number.
  • the mobile communication network forwards the ESG update data request to the ESG server;
  • the ESG server prepares data of the ESG differential update according to the request of the user terminal.
  • the ESG server typically implements the method for processing the differential update data, including managing one or more versions of the ESG data information, and identifying by the data type.
  • the data block identifier and its version number generate the corresponding ML document, which is sent when the differential update response is sent.
  • the ESG server currently has 2 data blocks, identified as block 1, block 2, and the version numbers are 3, 3 respectively.
  • the ESG server should generate the XML file of the ESG data information for the update of the data block 2 version 3 in time. , update document 1; and generate data block 1 version 3 update with ML document for ESG data information, update document 2.
  • update document 1 When a user terminal UE1 updates the previous data block 1, The data block 2 version number is 3, 2, and the ESG server responds to update the message 1 after the update request.
  • the response content of the ESG server to UE2 is different. That is, if the data block 1 and the version number of UE2 are 1, 2, respectively, the ESG server should update the document 1 and update the document 2 in response to the response of the UE 2.
  • the ESG server returns data of the ESG differential update to the mobile communication network; in this step, the data message of the ESG differential update is returned as follows:
  • the mobile communication network forwards the data of the ESG differential update to the user terminal;
  • the user terminal receives the ESG differential update data, and updates the local ESG data, where the update content includes basic description table information and ESG table data information.
  • the ESG basic description table of the ESG data is transmitted by controlling the multiplexed frame, and the user terminal receives the latest ESG data block description information of the current system server, including the version number.
  • the control multiplexing frame structure is as shown in FIG. 3.
  • a control information table is used as a multiplex subframe. That is, the control multiplex frame payload is composed of several control information tables. It contains the ESG basic description table.
  • the table identification number is 0x06.
  • the description table includes each ESG data type identifier, a data block identifier, and a data block version number, and can index the ESG service identifier used by the data block, and further, the terminal can quickly search for the corresponding multiplexing frame and receive the ESG data. Block with hints.
  • the data type identifier which occupies a 4-bit field, identifies the type of the ESG data table carried by the ESG data payload, as shown in Table 4:
  • the data block identifier occupying an 8-bit field, identifies the ESG ⁇ : according to the data block to which the payload belongs, and uniquely identifies a data block together with the data type identifier.
  • the data block version number occupying a 4-bit field, indicates the current version number of the data block, and is incremented by 1 when the data block changes.
  • the ESG service identifier which occupies a 16-bit field, indicates the identifier of the ESG service.
  • the allocation rule follows the multiplexing specification in the prior art.
  • the service identifier is allocated as shown in Table 5:
  • the above embodiment combines the mobile communication network with the one-way broadcast network of the mobile multimedia broadcast system, and realizes the interaction between the user terminal and the ESG server during the ESG data update process, thereby satisfying the difference requirement of the user terminal updating the ESG information.
  • the invention combines the mobile communication network on the basis of the one-way broadcast network of the mobile multimedia broadcast system, and realizes the interaction between the user terminal and the ESG server in the ESG data update process, thereby satisfying the difference requirement of the user terminal updating the ESG information.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)

Description

电子业务指南的差异性更新系统及其方法
技术领域
本发明属于移动多媒体广播技术，特别涉及一种电子业务指南的差异性 更新系统及其方法。
背景技术
电子业务指南 ESG ( Electronic Service Guide )或电子节目指南是一种多 媒体广播业务信息导航信息，是运营商管理和发布业务的方法，也是用户发 现和使用业务的窗口。 通过 ESG信息， 用户能够了解移动多媒体广播业务 的相关信息， 例如业务名称、播放时间、 内容梗概、价格等信息， 并实现对 业务的快速检索、预览和访问； 另外， ESG信息为用户收看电视节目和享受 信息服务提供了一个良好的导航机制，使用户能方便快捷地找到自己关心的 节目， 查看节目的附加信息。 因此 ESG客户端成为用户观看节目的重要途 径和工具。
随着 ESG信息量的丰富， 有效更新终端的 ESG信息成为一个比较重要 的课题。 目前， ESG单向广播发送的数据信息， 即 ESG广播数据， 根据需 要可以分为多个数据块。 这些数据块可以按照 ESG数据类型来分， 包括了 业^言息、编排信息、 节目内容信息和业务参数信息等。 终端更新操作即裉 据可以获知的数据块版本号变化来执行。
但是， 由于用户对终端使用习惯的差异性， 各终端上緩存的这些 ESG 数据块版本号不尽相同。 换言之， 用户终端在更新本地 ESG信息过程中， 由于已有数据块版本号不同，更新的基础不一样， 因此完成更新实际需要的 数据是不一样的。如果更新过程中所要传输的数据块的数量比较大，例如超 过 100个， 广播一次将需要比较长的时间， 例如超过 15秒。 加之广播的方 式受到带宽等限制， 将不能针对不同用户终端由于各自 ESG数据信息版本 的不同带来更新的差异性。 由此，终端需要告诉网络服务器自身的不同更新 需要。如果单纯使用移动多媒体单向广播系统， 则无法经济地满足终端更新 的差异性需求， 必将给 ESG数据传送和终端更新本地 ESG数据信息带来实 现上的难题。
发明内容
本发明所要解决的技术问题是,提供一种电子业务指南的差异性更新系 统及其方法， 从而在用户更新本地 ESG信息过程中 , 满足用户终端更新的 差异性需求。
为了解决上述技术问题，本发明提供了一种电子业务指南的差异性更新 方法， 具体包含， 用户终端通过双向网络向电子业务指南 ESG服务器发起 差异性 ESG更新请求后， ESG服务器通过所述双向网络向该用户终端返回 满足更新请求的差异性 ESG更新数据， 用户终端根据该差异性 ESG更新数 据更新本地 ESG数据。
进一步地,上述方法还可具有以下特点 ,所述双向网络为移动通信网络。 进一步地， 上述方法还可具有以下特点， 所述方法还包括， 所述用户终 端从单向广播网络接收 ESG数据信息， 将本地緩存中的 ESG数据信息与从 单向广播网络收到的 ESG数据信息进行比较， 判断需要发起差异性 ESG更 新请求后，通过移动通信网络向 ESG服务器发送差异性 ESG更新请求消息。
进一步地， 上述方法还可具有以下特点， 若本地緩存中的 ESG数据与 用户终端从单向广播网络收到的 ESG数据的数据类型标识信息、 数据块标 识信息以及数据块版本号信息中至少一项不相同时， 用户终端判断需要向 ESG服务器发起差异性 ESG更新请求。
进一步地， 上述方法还可具有以下特点， 所述差异性 ESG更新请求消 息中携带数据类型标识信息、数据块标识信息或者数据块版本号信息中任一 信息或者其组合。
进一步地， 上述方法还可具有以下特点， 所述 ESG服务器发送的差异 性 ESG更新数据中携带数据类型标识信息、 数据块总数信息或者数据块描 述信息中任一信息或者其组合，其中数据块描述信息为数据块标识信息、数 据块版本号信息、 对应一个或者多个数据块的 ESG数据信息的文档信息中 任一项或者其组合。 进一步地， 上述方法还可具有以下特点， 所述差异性 ESG更新数据中 数据块版本号为最新版本号。
一种电子业务指南的差异性更新系统， 包括电子业务指南 ESG服务器、 用户终端， 其特征在于还包括移动通信网络， 用于将用户终端发起差异性 ESG更新请求转发至 ESG服务器，还用于将 ESG服务器返回满足更新请求 的差异性 ESG更新数据转发给用户终端。
进一步地， 上述系统还可具有以下特点， 还包括单向广播网络， 用于广 播发送 ESG数据至用户终端， 用户终端对本地緩存中的 ESG数据与从单向 广播网络收到的 ESG数据的数据类型标识信息、 数据块标识信息以及数据 块版本号信息进行比较， 其中任一项不相同时， 用户终端判断需要向 ESG 服务器发起差异性 ESG更新请求。
进一步地， 上述系统还可具有以下特点， 所述 ESG服务器发送的差异 性 ESG更新数据中携带数据类型标识信息、 数据块总数信息或者数据块描 述信息中任一信息或者其组合，其中数据块描述信息为数据块标识信息、数 据块版本号信息、 对应一个或者多个数据块的 ESG数据信息的文档信息中 任一项或者其组合。
本发明在移动多媒体广播系统的单向广播网络基础上，结合移动通信网 络， 实现了 ESG数据更新过程中用户终端与 ESG服务器的交互， 满足了终 端更新 ESG信息的差异性需求。 附图概述
图 1是采用本发明技术方案的实施例中网络结构示意图；
图 2是图 1所示系统实现 ESG差异性更新的流程图；
图 3是实施例中携带 ESG基本描述表信息的控制复用帧结构示意图； 图 4是实施例中单向广播网络向 ESG服务器发送的广播请求消息示意 图；
图 5是实施例中 ESG服务器向单向广播网络返回的应答消息示意图。 本发明的较佳实施方式
本发明的主要构思是， 在移动多媒体广播系统的单向广播网络基础上， 结合移动通信网絡实现移动用户终端对电子业务指南的更新。其中移动通信 网络实现了用户终端与 ESG服务器的交互， 也就是说， 用户终端从单向广 播网络接收到 ESG数据后， 与本地存储的 ESG数据信息对比， 判断是否发 起差异性更新请求， 若需要则通过移动通信网络向 ESG服务器发起差异性 ESG更新请求， ESG服务器通过移动通信网络向该用户终端返回满足更新 请求的差异性 ESG更新数据， 用户终端通过该差异性 ESG更新数据最终对 本地 ESG数据进行更新。 上述移动通信网络也可以是其他双向网络， 用于 实现用户终端与 ESG服务器的交互。
下面结合附图对本发明技术方案及其实施作进一步说明。
一种电子业务指南的差异性更新系统， 如图 1 所示， 该系统包括 ESG 服务器 S101、单向广播网络 S102、用户终端 S104以及移动通信网络 S103。 其中：
ESG服务器 S101 , 在现有的功能上， 可以响应差异性 ESG更新数据信 息请求， 并发送差异性更新 ESG数据， 对于需要更新的数据块， ESG服务 器都提供该数据块最新版本的 ESG数据信息。
ESG服务器的现有功能包括， 管理 ESG各种数据信息、 ESG服务器的 系统配置数据等； 生成一个或者多个数据块，供广播或差异性更新使用； 并 根据规范要求， 封装 ESG数据信息； 生成 ESG基本描述表； 响应单向广播 网络发送的 ESG数据请求； 向单向广播网絡发送 ESG数据。
其中 ESG服务器按照规则划分 ESG数据信息为多个部分， 即多个数据 块， 并建立数据块与数据块标识的对应关系，所述数据块是具有相同数据类 型标识的元素的集合的子集。
ESG基本描述表中包括了 ESG业务标识、 各 ESG数据类型标识、 数据 块标识、 及数据块版本号； 可以索引到该数据块使用的 ESG业务标识， 进 而可以给终端快捷地搜寻对应复用帧和接收 ESG数据块以提示。 数据类型标识， 用于标识 ESG数据净荷承载的 ESG数据表的类型。 数据块标识， 用于标识 ESG数据净荷所属的数据块， 跟数据类型标识 一起唯一确定一个数据块。
数据块版本号，表示数据块当前的版本号， 当数据块发生变更时递增加 1 , 或其他约定的指示版本变化的方式， 例如使用不同的字母表示版本的高 低。
ESG业务标识， 表示 ESG业务的标识， 遵循复用规范分配规则。
ESG服务器对所述 ESG数据请求和差异性 ESG更新数据信息请求发出 的应答消息至少包括以下参数： 数据类型标识、 数据块总数、 数据块描迷， 每个数据块的描述至少包括下列参数之一：数据块标识及其版本号， 以及对 应的一个或者多个数据块的 ESG数据信息的 XML文档。 ESG服务器发出 的应答消息的数据类型字段，包括如下三种类型：指示基本描述表数据、 ESG 信息表数据或者节目提示信息。
单向广播网络 S102, 包括与 ESG服务器 S101接口的复用器、 单向广 播无线调制发射系统等， 其功能与现有技术相同。
复用器接收 ESG服务器传输的 ESG基本描述表、 ESG信息表数据和节 目提示信息三种数据类型的数据。 复用器与 ESG服务器接口采用 TCP方式 通讯， ESG服务器作为 TCP的服务器端， 复用器作为 TCP的客户端。 ESG 服务器与复用器建立一个 TCP链接后， 通过接口消息， 复用器每 1秒钟向 ESG服务器发送一个广播 ESG请求消息， ESG服务器发送一个或多个应答 消息。 其中接口消息数据可以按照现有技术采用统一的网络字节序传送。
移动通信网络 S103, 如 GPRS或 CDMA等， 包含移动通信网络的核心 网与接入网系统， 支持 PS域 HTTP等交互功能。
用户终端 S104, 可以是 PDA、 手机、 车载移动台等移动终端， 其功能 包括： 接收广播的 ESG数据； 解析广播的 ESG数据； 比较接收的 ESG数据 中的基 述表数据与本地緩存的基本描述表数据，确定是否需要请求差异 性更新 ESG数据； 如果需要， 请求差异性更新 ESG数据； 接收差异性更新 ESG数据； 解析差异性更新 ESG数据； 以及更新本地 ESG数据， 更新内容 包括基本描述表信息与 ESG表数据信息。
其中用户终端分析基本描述表中信息， 至少包括下列参数之一： 数据类 型标识、数据块标识及其版本号， 以确定是否需要发起更新 ESG数据请求。
所述请求差异性更新消息描述用户终端当前的状态，不包含参数或至少 包括下列参数之一： 数据类型标识、 数据块标识及其版本号。
图 2所示为上述系统实现电子业务指南的差异性更新方法的流程，包括 以下步骤：
201: 单向广播网络的复用器向 ESG服务器发送广播 ESG请求； 该步骤中， 复用器发给 ESG服务器的请求消息数据格式如图 4所示。
. 202: ESG服务器应答复用器请求， 并发送 ESG数据到单向广播网络； 该步骤中， ESG服务器发给复用器的应答消息数据格式如图 5所示，应 答消息的 "数据通信部分" ， 即数据净荷的内容由上述 ESG服务器数据封 装方式规定， 同现有技术。
步骤 201与 202中所述请求及应答消息中的各参数说明如表 1所示: 表 1
Figure imgf000008_0001
业务标识 2字节 对于复用器发出的数据请求消息无此字段；
对于 ESG服务器发出的应答消息，该字段的含义 o下： 对 ESG基本描迷表， 本元素取值为 0; 对 ESG数据信 息， 本元素在 0x0040至 OxOOFF范围任意值； 对节目提示 信息， 与节目提示信息对应业务的业务标识一致。
数据长度 4字节 对于复用器发出的数据请求消息该字段表示的是本秒
ESG数据信息所能发送的最大长度。 （ ESG节目提示信息 和 ESG基本描述表的最大长度不通过消息确定）；
对于 ESG服务器发出的数据应答消息， 该字 示实 际通信数据部分的字节个数。
系统时间 8字节 对于复用器发出的数据请求消息，该字段表示复用器的 时间， 有效比特 40位， 前 16位表示 MJD 日期码； 后 24 位按 4位 BCD编码， 共 6个数字表示精确到秒的时间。
对于 ESG服务器发出的数据应答消息， 无此字段。
通信餘 变长 对于复用器发出的数据请求消息， 无该字段。
部分 对于 ESG服务器发出的数据应答消息， 此部分为 ESG 数据。
203: 单向广播网络向终端转发 ESG数据；
204: 用户终端接收和分析 ESG数据；
该步骤中， 用户终端分析接收 ESG数据的基本描述表中的信息， 并与 本地緩存中 ESG数据的基本描述表中的相应信息进行比较， 可以比较一个 或多个信息， 例如： 数据类型标识信息、 数据块标识信息及其版本号信息， 当接收的 ESG数据与本地緩存中 ESG数据的基本描述表中信息有所不同 时， 则确定需要发起差异性 ESG更新数据请求，执行步骤 205， 否则结束整 个流程。
特别地， 终端也可以根据接收广播 ESG数据信息的时机， 例如开机、 观看中、 浏览 ESG中等， 可以决定是否执行步骤 205。
205: 用户终端发起差异性 ESG更新数据请求到移动通信网络； 本实施例中 , 差异性 ESG更新数据请求消息如下：
POST <Request URI> HTTP/1.1
Host:
User-Agent: Content-Type:
Content-Length:
Date:
Accept:
<payload>
该差异性 ESG更新数据请求消息中各参数说明如表 2所示:
表 2
Figure imgf000010_0001
上表中， 请求消息^& 1(^(1>描述用户终端当前的状态， 至少包括下列 参数之一： 数据类型标识、 数据块标识或者其版本号。
206: 移动通信网絡转发 ESG更新数据请求到 ESG服务器；
207: ESG服务器根据用户终端请求， 准备 ESG差异性更新的数据； 该步骤中， ESG服务器典型的处理差异性更新数据的实现方法， 包括管 理一个或多个版本的 ESG数据信息， 按数据类型标识、 数据块标识及其版 本号生成对应的 ML文档， 供差异性更新应答时发送。
例如： ESG服务器当前有 2个数据块， 标识为块 1、 块 2， 版本号分别 为 3, 3; 此前， ESG服务器应及时为此生成数据块 2版本 3的更新用 ESG 数据信息的 XML文档， 更新文档 1 ; 并生成数据块 1版本 3的更新用 ESG 数据信息的 ML文档， 更新文档 2。 当某用户终端 UE1更新前数据块 1、 数据块 2版本号分别为 3、 2, 更新请求后 ESG服务器即应答更新文桔 1。 如果另外有终端 UE2请求更新 ESG数据信息， 由于其当前一个或多个数据 类型、 块标识、 版本号与 UE1不尽相同， ESG服务器给 UE2的应答内容就 有所差异。 也就是说， 如果 UE2的数据块 1、 2版本号分别为 1、 2, ESG 服务器应对 UE2的应答更新文档 1和更新文档 2。
208: ESG服务器向移动通信网络返回 ESG差异性更新的数据； 该步驟中， 返回 ESG差异性更新的数据消息如下：
HTTP/1.1 200 OK
Server:
Content-Type:
Content-Length:
Date:
Expires:
<payload>
上述返回的 ESG差异性更新的数据消息中各参数说明如表 3所示： 表 3
Figure imgf000011_0001
ESG差异性更新的数据消息^& 1()&( 中至少包括下列参数之一： 数据 类型标识、数据块总数或者数据块描述，其中每个数据块的描迷至少包括下 列参数之一：数据块标识及其版本号， 以及对应的一个或多个数据块的 ESG 数据信息的 ML文档。 209: 移动通信网络转发 ESG差异性更新的数据给用户终端；
210: 用户终端接收 ESG差异性更新数据， 并更新本地 ESG数据， 更 新内容包括基本描述表信息与 ESG表数据信息。
本实施中， ESG服务器通过单向广播网络发送 ESG数据消息过程中， ESG数据的 ESG基本描述表通过控制复用帧传输，用户终端接收后获知当 前系统服务器最新 ESG数据块描述信息， 包括版本号， 其中控制复用帧结 构如图 3所示。
MF— ID =- 0的复用帧， 用于承载控制信息， 筒称为控制复用帧， 使用 控制逻辑信道传送，此时将一个控制信息表作为一个复用子帧。 即控制复用 帧净荷由若干控制信息表组成。 其中包含 ESG基本描述表。 表标识号为 0x06。
所述描述表包括了各 ESG数据类型标识、 数据块标识、 及数据块版本 号， 并可以索引到该数据块使用的 ESG业务标识， 进而可以给终端快捷地 搜寻对应复用帧和接收 ESG数据块以提示。
其中数据类型标识， 占用 4位字段， 标识 ESG数据净荷承载的 ESG数 据表的类型， 如表 4所示：
表 4
Figure imgf000012_0001
数据块标识， 占用 8位字段， 标识 ESG ^:据净荷所属的数据块， 和数 据类型标识一起唯一确定一个数据块。
数据块版本号， 占用 4位字段， 表示数据块当前的版本号， 当数据块发 生变更时递增加 1。 ESG业务标识， 占用 16位字段， 表示 ESG业务的标识， 分配规则遵循 现有技术中复用规范即可， 业务标识的分配如表 5所示：
表 5
Figure imgf000013_0001
上述实施例在移动多媒体广播系统的单向广播网络基础上，结合了移动 通信网絡， 实现了 ESG数据更新过程中用户终端与 ESG服务器的交互， 从 而满足了用户终端更新 ESG信息的差异性需求。
当然，上述具体实施例不是对本发明技术方案的进一步限定，任何熟悉 本领域的技术人员对本发明技术特征所作的等同替换或相应改进，仍在本发 明的保护范围之内。
工业实用性
本发明在移动多媒体广播系统的单向广播网络基础上，结合了移动通信 网络， 实现了 ESG数据更新过程中用户终端与 ESG服务器的交互， 从而满 足了用户终端更新 ESG信息的差异性需求。

Claims

权 利 要 求 书
1、 一种电子业务指南的差异性更新方法， 其特征在于， 用户终端通过 双向网络向电子业务指南 ESG服务器发起差异性 ESG更新请求后， ESG服 务器通过所述双向网络向该用户终端返回满足更新请求的差异性 ESG更新 数据， 用户终端根据该差异性 ESG更新数据更新本地 ESG数据。
2、 如权利要求 1所述的方法， 其特征在于， 所述双向网络为移动通信 网洛。
3、 如权利要求 2所述的方法， 其特征在于， 所述方法还包括， 所述用 户终端从单向广播网络接收 ESG数据信息， 将本地緩存中的 ESG数据信息 与从单向广播网络收到的 ESG数据信息进行比较,判断需要发起差异性 ESG 更新请求后， 通过移动通信网络向 ESG服务器发送差异性 ESG更新请求消
4、 如权利要求 3所述的方法， 其特征在于， 若本地緩存中的 ESG数据 与用户终端从单向广播网络收到的 ESG数据的数据类型标识信息、 数据块 标识信息以及数据块版本号信息中至少一项不相同时，用户终端判断需要向 ESG服务器发起差异性 ESG更新请求。
5、 如权利要求 1至 4中任一所述的方法，其特征在于，所述差异性 ESG 更新请求消息中携带数据类型标识信息、数据块标识信息或者数据块版本号 信息中任一信息或者其组合。
6、 如权利要求 1所述的方法， 其特征在于， 所述 ESG服务器发送的差 异性 ESG更新数据中携带数据类型标识信息、 数据块总数信息或者数据块 描述信息中任一信息或者其组合， 其中数据块描述信息为数据块标识信息、 数据块版本号信息、 对应一个或者多个数据块的 ESG数据信息的文档信息 中任一项或者其组合。
7、 如权利要求 6所述的方法，其特征在于， 所述差异性 ESG更新数据 中数据块版本号为最新版本号。
8、 一种电子业务指南的差异性更新系统，包括电子业务指南 ESG服务 器、用户终端， 其特征在于还包括移动通信网络， 用于将用户终端发起的差 异性 ESG更新请求转发至 ESG服务器，还用于将 ESG服务器返回的满足更 新请求的差异性 ESG更新数据转发给用户终端。
9、 如权利要求 8所述的系统， 其特征在于， 还包括单向广播网络， 用 于广播发送 ESG数据至用户终端， 用户终端对本地緩存中的 ESG数据与从 单向广播网络收到的 ESG数据的数据类型标识信息、 数据块标识信息以及 数据块版本号信息进行比较，至少一项不相同时，用户终端判断需要向 ESG 服务器发起差异性 ESG更新请求。
10、 如权利要求 8所述的系统， 其特征在于， 所述 ESG服务器发送的 差异性 ESG更新数据中携带数据类型标识信息、 数据块总数信息或者数据 块描述信息中任一信息或者其组合， 其中数据块描述信息为数据块标识信 息、 数据块版本号信息、 对应一个或者多个数据块的 ESG数据信息的文档 信息中任一项或者其组合。
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CN102970312A (zh) * 2011-09-01 2013-03-13 中兴通讯股份有限公司 基于p2p的无盘设备的网络启动方法及系统
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CN105677375A (zh) * 2014-11-18 2016-06-15 中兴通讯股份有限公司 升级控制设备、终端、终端升级方法及系统
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CN107451132A (zh) * 2016-05-30 2017-12-08 深圳市唯德科创信息有限公司 一种专利信息更新方法及系统
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