WO2010051701A1 - 一种实现移动多媒体广播电子业务指南更新的方法及终端 - Google Patents

一种实现移动多媒体广播电子业务指南更新的方法及终端 Download PDF

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Publication number
WO2010051701A1
WO2010051701A1 PCT/CN2009/072750 CN2009072750W WO2010051701A1 WO 2010051701 A1 WO2010051701 A1 WO 2010051701A1 CN 2009072750 W CN2009072750 W CN 2009072750W WO 2010051701 A1 WO2010051701 A1 WO 2010051701A1
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Prior art keywords
esg
terminal
update
received
time information
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PCT/CN2009/072750
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English (en)
French (fr)
Inventor
王泽民
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP09824356A priority Critical patent/EP2355383A4/en
Priority to US13/127,174 priority patent/US20110209176A1/en
Publication of WO2010051701A1 publication Critical patent/WO2010051701A1/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
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/25—Arrangements for updating broadcast information or broadcast-related 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
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/40—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast time
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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

Definitions

  • the present invention relates to a method for updating a mobile multimedia broadcast (CMMB, China Mobile Multimedia Broadcasting) electronic service guide (ESG, Electronic Service Guide) and a terminal, and in particular to a method and terminal for implementing CMMB ESG update.
  • CMMB mobile multimedia broadcast
  • ESG Electronic Service Guide
  • the ESG contains information about the currently available services. Based on this information, users can select the business they are interested in and find relevant TV data information.
  • the ESG update allows users to get the latest business information in a timely manner, which is an important part of ESG function implementation.
  • the ESG update is implemented in the CMMB standard by the ESG update sequence number field. Compared to the ESG update in the DVB-H standard, it is undoubtedly a great convenience for the mobile phone side to update the ESG.
  • the method for implementing the ESG update by the ESG update sequence number field may be specifically referred to the patent CN200710147987.X and the patent CN200710072904, etc., and details are not described herein again.
  • the current practice is mostly by re-receiving the ESG. Realized. In doing so, although the process of updating the ESG when the mobile phone side is turned on is simplified, it is convenient to implement; on the other hand, when the ESG update is small, it takes a lot of ESG reception and parsing time, and the ESG information is numerous. In this case, it will directly lead to dissatisfaction with the user experience.
  • the ESG update method disclosed in the patent CN200710072904 directly uses the ESG update sequence number to indicate whether the ESG is updated. It is generally a good idea to compare whether the ESG table or the sub-table is updated by comparing the ESG basic description table.
  • the indication field is a 4-bit field, and the value is cyclically in the range of 0 to 15, and the user shutdown time is an indeterminate event. At the same time, the user may roam after the power is turned off (including mobile TV programs). Billing, and may even include charging for receiving ESG information.
  • ESG update sequence number only by ESG update sequence may result in the ESG update sequence number being unchanged, but in fact the ESG has been updated abnormally; or When the ESG information update is large or has been completely replaced, comparing the ESG basic description table will consume system time resources.
  • the technical problem to be solved by the present invention is to provide a method and a terminal for implementing ESG update in a CMMB, so that the terminal can perform an update operation of the ESG efficiently and accurately.
  • the present invention provides a method for implementing an ESG update of a mobile multimedia broadcast electronic service guide, the method comprising the following steps:
  • the terminal When receiving the ESG, the terminal saves the ESG and the time information of the ESG received; when the terminal receives the ESG again, according to the time information of the ESG received this time and the last received in the terminal.
  • the time information to the ESG determines whether the condition for re-updating the ESG is satisfied. If yes, the terminal updates all the ESGs saved thereon to the received ESG; otherwise, the terminal determines the ESG carried in the ESG.
  • the update indication is the same as the value of the ESG update indication in the ESG stored thereon, and the ESG information changed on the terminal is updated when the update is not the same.
  • the method further includes:
  • the terminal updates the time information saved on the terminal to the time information of receiving the ESG. Further, the condition that all the ESGs are re-updated is: the difference between the time information that the terminal receives the ESG again and the time information of the last received ESG saved in the terminal is greater than a predefined one of the terminals.
  • the threshold value, or the time information that the terminal receives the ESG again and the time information of the last received ESG saved in the terminal are located on both sides of the predefined update time critical point in the terminal.
  • the method further includes The following steps: the terminal determines whether the value of the network update indication carried in the ESG received by the current time is the same as the value of the network update indication carried in the last received ESG, and if the same, the terminal performs Determining whether the time information of the ESG received this time and the time information of the last ESG received in the terminal satisfy the condition of re-updating the ESG; otherwise, the terminal updates all the ESGs saved thereon After the ESG received, it ends.
  • the method includes: when the terminal determines that the ESG update indication carried in the ESG is the same as the value of the ESG update indication in the ESG stored on the ESG, the terminal does not update the ESG saved on the ESG.
  • the predefined threshold value in the terminal is 24 hours, and the update time threshold is 0 points.
  • a terminal for implementing an ESG update of a mobile multimedia broadcast includes a storage module, a update module, a time information judgment module, and an update indication judgment module, wherein
  • the storage module is configured to save the ESG and the time information of the ESG received when the ESG is received; and also to save the updated ESG;
  • the update module is configured to update all ESGs saved on the ESG to the ESG received after receiving the update command;
  • the time information determining module is configured to determine, according to the time information of the ESG received and the time information of the last received ESG stored in the storage module, whether the condition for re-updating the ESG is satisfied, and if yes, to the update
  • the module sends the update command; otherwise, sends a judgment command to the update indication determination module;
  • the update indication determining module is configured to: after receiving the determining command, determine an ESG update indication carried in the ESG received in the current time and a value of an ESG update indication in the last received ESG saved in the storage module. Whether they are the same, send the above to the update module when the confirmation is not the same New order.
  • the update module is further configured to update the time information saved thereon for the current reception.
  • the storage module is further configured to save updated ESG time information.
  • the condition that all the ESGs are re-updated is: the difference between the time information of the ESG received by the terminal and the time information of the received ESG saved in the storage module is greater than a predefined threshold in the terminal.
  • the time information of the ESG received by the terminal and the time information of the received ESG saved in the storage module are located on both sides of a predefined update time threshold in the terminal.
  • the network update indication determining module is further configured to compare the value of the network update indication carried in the ESG received by the terminal to the ESG stored in the storage module.
  • the value of the network update indication if the two are different, is used to send the update command to the update module; otherwise, it is used to send a determination command to the time information determination module, and instruct the time information determination module to perform subsequent determination .
  • the predefined threshold value in the terminal is 24 hours, and the update time threshold is 0 points.
  • the CMMB standard fully utilizes the network information table update sequence number field and the ESG update sequence number field to confirm whether the network attribution has changed and whether the ESG information is updated.
  • the partial update An efficient update strategy is implemented between all updates, which avoids the time consumption of ESG information reception and parsing caused by full re-acquisition/update when ESG information is only partially updated, and avoids most of the ESG information.
  • the ESG basic description table is frequently compared, and the ESG update operation of the terminal is efficiently implemented.
  • FIG. 1 is a schematic flowchart of a method for implementing an ESG update according to the present invention
  • FIG. 2 is a schematic structural diagram of a multiplexing frame header according to the present invention
  • 3 is a flow chart of the ESG boot update process of the present invention
  • FIG. 4 is a structural diagram of a terminal for implementing ESG update according to the present invention. Preferred embodiment of the invention
  • the basic idea of the present invention is: when the update range of the ESG information is large, the terminal retrieves the update mode of all retransmissions; when the ESG information part is updated, the ESG update indication is used to search for the updated ESG table and the sub-table to perform partial update; When the network attribution changes, a more reasonable ESG update method is used.
  • Step 101 When receiving the ESG, the terminal saves the ESG and the time information of the ESG received this time;
  • CMMB the function of multiplexing is to encapsulate and arrange information such as audio, video, data, ESG, etc., so that it can be transmitted on the mobile multimedia broadcast channel; and a multiplexed frame is multiplexed frame header, multiplexed frame net Charge and fill composition.
  • the terminal After receiving the broadcast channel frame composed of multiple multiplexed frames, the terminal demultiplexes the ESG update indication and the network update indication carried in the multiplexed frame header as shown in FIG. 2, where the ESG update indication is the ESG. Update the serial number, the network update indication is the network information table update serial number;
  • Step 102 When the terminal receives an ESG again, it determines whether the condition for re-updating the ESG is satisfied according to the time information of the ESG received this time and the time information of the last ESG received in the terminal. If yes, Then, step 103' is executed: the terminal updates all ESGs saved thereon to the ESG received this time; otherwise, step 103 is performed.
  • Step 103 Determine whether the ESG update indication carried in the ESG is the same as the value of the ESG update indication in the ESG saved on the ESG. If the same, perform step 104': directly read and use the ESG information saved in the terminal, and It is used as the currently valid ESG information; otherwise, step 104 is performed.
  • Step 104 Update the ESG table and/or the sub-list that has changed on the terminal according to the ESG basic description table.
  • Step 105 After completing the foregoing various judgments and comparisons, the terminal needs to update the time information saved on the ESG to the time information of receiving the ESG, whether or not the ESG is updated.
  • the condition for re-updating the ESG may be: the difference between the time information received by the terminal and the time information of the received ESG stored in the terminal is greater than a predefined threshold in the terminal; or the time information of the ESG received by the terminal.
  • the time information received with the ESG saved in the terminal is located on both sides of the predefined update time critical point in the terminal.
  • pre-defining the above threshold or updating the time critical point refer to the ESG scheduling plan. For example, when the program is arranged for today, tomorrow, and the next day, the threshold can be set to 24 hours, and the update time threshold is set to Zero (00:00).
  • step 102 before comparing the two time information, it is determined whether the terminal has changed the location, that is, by comparing the terminal to receive the current time.
  • the value of the network update indication carried in the received ESG is compared with the value of the network update indication in the ESG stored thereon to determine whether the attribution of the ESG changes. If the two are different, the location of the terminal has changed, and the terminal is changed. After all the ESGs stored on the ESG are updated to the ESG received, the end of the ESG is terminated. Otherwise, the location of the terminal is not changed, and the subsequent determination of the two time letters and packets is performed.
  • the invention can effectively implement the update of the ESG on the terminal.
  • This embodiment solves and improves the problems existing in the current ESG update technology, and improves the efficiency of ESG update.
  • the method for updating the terminal ESG includes the following steps:
  • Step 100 When the mobile phone is turned off, save the current ESG information in the memory of the mobile phone and the time of receiving/updating the ESG last time; the mobile phone starts up and enters the mobile phone television service, and after receiving the ESG, reads the network information table update serial number therein; 200.
  • the mobile terminal re-multiplexes the network information table with the table identification number 0x01 from the multiplex payload of the multiplex frame with the service identifier 0, and updates the sequence number with the network information table of the ESG reserved by the mobile terminal to determine the network belongs to Whether the attribution has changed;
  • step 310 If the attribution of the network changes, indicating that the billing of the mobile TV program changes, the general ESG information is updated. Go to step 310. Otherwise, proceed to step 300.
  • Step 310 The mobile terminal re-receives the ESG information, and completes the reception by the ESG. After the ESG is parsed, the ESG information is displayed. At the same time, the corresponding ESG information and the current system time for acquiring the ESG information need to be saved. Considering that it is time-consuming to retain in the memory, it can be temporarily saved in the data structure of the file. Unified write to memory, end;
  • Step 300 Determine whether the difference between the time information received by the ESG after the power-on and the time information saved before the power-off is greater than 24 hours or whether they are respectively located at both sides of the zero point. If yes, the ESG update range is large, and the time is directly heavy. The method is the simplest and most effective, and proceeds to step 310; otherwise, proceeds to step 400.
  • Step 400 the terminal demultiplexing detects the ESG update sequence number of the multiplexed frame header as shown in FIG. 2, and determines whether it changes; if there is a change, the process proceeds to step 420; otherwise, the process proceeds to step 410;
  • step 410 the ESG update sequence number does not change, indicating that the ESG does not update, and the ESG information saved before the shutdown is read as the current ESG information, and the ESG display is performed. In this case, the ESG information needs to be updated to the current time and ends.
  • Step 420 the ESG update sequence number changes, indicating that the ESG is updated; the mobile terminal re-multiplexes the ESG basic description table with the table identification number 0x06 from the multiplex payload of the multiplex frame with the service identifier 0; The ESG basic description table reserved in the comparison determines which ESG tables or sub-tables have been updated, and updates the ESG table and sub-lists that have been updated. At the same time, it is necessary to save the corresponding ESG information and the current system time for obtaining ESG information.
  • Step 430 When the mobile phone is turned off, the ESG information and the update time of the last processing are written into the mobile phone memory, so that the ESG is used for the next time the mobile phone is turned on.
  • each time the ESG information is received or updated the current system time needs to be recorded.
  • the time is written into the specified location in the memory of the mobile phone. If there is already a record of the corresponding time in the specified location of the memory, Coverage is done directly.
  • the terminal for implementing the ESG update is as shown in FIG. 4, and includes a storage module, an update module, a time information judging module, and an update indication judging module, where
  • a storage module configured to save the ESG and the time information of the ESG when the ESG is received; and to save the updated ESG and ESG time information;
  • the update module is used to update all ESGs saved on this page after receiving the update command.
  • the received ESG is also used to update the time information saved thereon to the time information of receiving the ESG;
  • the time information judging module is configured to determine, according to the time information of the ESG received and the time information stored in the storage module, whether the condition for re-updating the ESG is satisfied, and if yes, send an update command to the update module; otherwise,
  • the update indication determination module sends a judgment command.
  • the conditions for re-updating the ESG are: the difference between the time information received by the terminal and the time information of the received ESG stored in the storage module is greater than a predefined threshold in the terminal, or the terminal receives the ESG.
  • the time information and the time information of the received ESG saved in the storage module are located on both sides of a predefined update time critical point in the terminal.
  • the update indication determining module is configured to compare the ESG update indication carried in the received ESG with the ESG update indication value in the ESG stored in the storage module after receiving the determination command, and if the two are the same, the update module is updated. Send the update command.
  • the terminal may further include: a network update indication determining module.
  • the network update indication determining module is configured to determine whether the value of the network update indication carried in the ESG received by the terminal is the same as the value of the network update indication in the last received ESG saved in the storage module, if the two are different And sending an update command to the update module; otherwise, sending a judgment command to the time information determination module, instructing the time information determination module to perform subsequent determination.
  • the invention fully utilizes the network information table update sequence number field and the ESG update sequence number field in the CMMB standard to confirm whether the network attribution is changed and whether the ESG information is updated; and at the same time, according to the size of the ESG information update range, the partial update and the full update are performed.
  • An efficient update strategy is implemented, which avoids the use of all re-acquisition/updates when ESG information is only partially updated.
  • the time consumption of ESG information receiving and parsing avoids the frequent comparison of the ESG basic description table when most of the ESG information is updated, and implements the ESG update operation of the terminal efficiently, so it has strong industrial applicability.

Description

一种实现移动多媒体广播电子业务指南更新的方法及终端
技术领域
本发明涉及移动多媒体广播 （ CMMB , China Mobile Multimedia Broadcasting ) 电子业务指南 （ESG, Electronic Service Guide ) 更新的方法及 终端的技术， 尤其是指一种实现 CMMB ESG更新的方法及终端。
背景技术
随着移动数据业务的普及、 手机性能的提高以及数字电视技术和网络的 迅速发展， 利用具有操作系统和视频功能的智能手机观看电视的手机电视业 务引起了人们的广泛关注。 由于手机用户普及率高且手机具有携带方便等特 性， 因此手机电视业务显示出了比普通电视更广泛的影响力。
作为炙手可热的发展焦点， 手机电视即将步入大规模应用时期。 在国外 比较有影响的是欧洲标准手持数字视频广播 （ DVB-H , Digital Video Broadcasting Handheld ) 和韩国标准地面数字多媒体广播 ( T-DMB , Terrestrial-Digital Multimedia Broadcast ) 。 在国内， 由国家广播电影电视总 局颁布的行业标准 CMMB作为有影响的手机电视标准，由于具有完全自主知 识产权， 因此受到了业内的广泛关注。 同时， 由于广电系统的牵头、 通信运 营商的积极参与， 与 CMMB相关的产业链已经初具规模，在目前国内手机电 视标准的博弈中已初步胜出。
在 CMMB 中， ESG包含了当前可用业务的信息。 根据这些信息， 用户 可以选择自己感兴趣的业务并且找到相关的电视数据信息。 而 ESG的更新可 以让用户及时获取到最新的业务信息， 是 ESG功能实现中的重要一部分。 对 于 ESG的更新， 在 CMMB标准中是通过 ESG更新序号字段来进行实现的， 相对于 DVB-H标准中的 ESG更新来说， 无疑为手机侧更新 ESG提供了极大 的方便。 通过 ESG更新序号字段实现 ESG更新的方法， 具体可以参考专利 CN200710147987.X及专利 CN200710072904等， 在此不再赘述。
对于手机开机时的 ESG更新， 目前的做法大都是通过重新接收 ESG来 实现的。 这样做， 虽然简化了手机侧开机时更新 ESG的流程， 实现起来比较 方便； 但是另外一方面， 当 ESG更新较少时， 需要消耗比较多的 ESG接收 及解析的时间，且在 ESG信息繁多的情况下，会直接导致用户体验的不满意。
特别地， 专利 CN200710072904公开的 ESG更新方法， 直接使用 ESG更 新序号来指示 ESG是否更新， 通过比较 ESG基本描述表来判断 ESG表或者 子表是否有更新， 一般来说是个比较好的办法。 但是该指示字段是 4位字段， 在 0 ~ 15范围内循环取值， 且用户关机时间是一个不确定的事件， 同时， 关 机后再开机就有可能发生用户漫游的情况（涉及手机电视节目的计费， 甚至 还可能包括接收 ESG信息的计费 ) , 这时候仅仅凭借 ESG更新序号来进行 ESG更新就有可能出现 ESG更新序号不变， 但实际上 ESG已经发生更新的 异常情况； 或者出现当 ESG信息更新幅度大或已全部替换时， 比较 ESG基 本描述表将耗费系统时间资源的问题。
发明内容
本发明要解决的技术问题是提供一种实现 CMMB中的 ESG更新的方法 及终端， 使得终端能够高效、 准确的完成 ESG的更新操作。 为解决上述问题， 本发明提供了一种实现移动多媒体广播电子业务指南 ESG更新的方法， 该方法包括以下步骤：
终端在接收到 ESG时，保存所述 ESG及本次接收到该 ESG的时间信息； 所述终端再次接收到 ESG时， 根据本次接收到 ESG的时间信息与所述 终端中保存的上次接收到 ESG 的时间信息判断是否满足全部重新更新 ESG 的条件，若是，则所述终端将其上保存的 ESG全部更新为本次接收到的 ESG; 否则， 所述终端判断所述 ESG中携带的 ESG更新指示与其上保存的 ESG中 的 ESG更新指示的值是否相同， 不相同时对终端上发生变更的 ESG信息进 行更新。
进一步地， 所述终端将其上保存的 ESG全部更新为本次接收到的 ESG 之后， 使用终端保存的 ESG之后或对终端上发生变更的 ESG信息进行更新 之后， 该方法进一步包括：
所述终端将其上保存的时间信息更新为本次接收 ESG的时间信息。 进一步地， 所述全部重新更新 ESG的条件为： 所述终端再次接收到 ESG 的时间信息与所述终端中保存的上次接收到 ESG的时间信息的差值大于所述 终端中预定义的一个阔值， 或所述终端再次接收到 ESG的时间信息与所述终 端中保存的上次接收到 ESG的时间信息位于所述终端中预定义的更新时间临 界点两侧。
进一步地， 所述终端再次接收到 ESG后， 且根据本次接收到 ESG的时 间信息与所述终端中保存的接收到 ESG的时间信息判断是否满足全部重新更 新 ESG 的条件之前， 该方法还包括以下步骤： 所述终端判断本次接收到的 ESG中携带的网络更新指示的值与其上保存的上次接收到的 ESG中携带的网 络更新指示的值是否相同， 若相同， 则所述终端执行判断本次接收到 ESG的 时间信息与所述终端中保存的上次接收到 ESG的时间信息是否满足全部重新 更新 ESG的条件的步骤； 否则， 所述终端将其上保存的 ESG全部更新为本 次接收到的 ESG后结束。
较佳地， 该方法包括： 所述终端确定所述 ESG中携带的 ESG更新指示 与其上保存的 ESG中的 ESG更新指示的值相同时， 不对其上保存的 ESG进 行更新。
较佳地， 所述终端中预定义的阔值为 24小时， 所述更新时间临界点为 0 点。
一种实现移动多媒体广播 ESG更新的终端， 该终端包含存储模块、 更 新模块、 时间信息判断模块及更新指示判断模块， 其中，
所述存储模块用于在接收到 ESG时，保存所述 ESG及本次接收到该 ESG 的时间信息； 还用于保存更新后的 ESG;
所述更新模块用于在接收到更新命令后，将其上保存的 ESG全部更新为 本次接收到的 ESG;
所述时间信息判断模块用于根据本次接收到 ESG的时间信息与所述存储 模块中保存的上次接收到 ESG 的时间信息判断是否满足全部重新更新 ESG 的条件， 若是， 则向所述更新模块发送所述更新命令； 否则， 向所述更新指 示判断模块发送判断命令；
所述更新指示判断模块用于在接收到所述判断命令后， 判断本次接收到 的 ESG中携带的 ESG更新指示与所述存储模块中保存的上次接收到 ESG中 的 ESG更新指示的值是否相同， 在确认不相同时向所述更新模块发送所述更 新命令。
进一步地， 所述更新模块还用于将其上保存的时间信息更新为本次接收
ESG的时间信息；
所述存储模块还用于保存更新后的 ESG时间信息。
进一步地， 所述全部重新更新 ESG的条件为： 所述终端接收到 ESG的 时间信息与所述存储模块中保存的接收到 ESG的时间信息的差值大于所述终 端中预定义的一个阔值， 或所述终端接收到 ESG的时间信息与所述存储模块 中保存的接收到 ESG的时间信息位于所述终端中预定义的更新时间临界点两 侧。
较佳地， 还包括网络更新指示判断模块； 所述网络更新指示判断模块用 于比较所述终端本次接收到的 ESG中携带的网络更新指示的值与所述存储模 块中保存的 ESG中的网络更新指示的值， 若二者不同， 则用于向所述更新模 块发送所述更新命令； 否则， 用于向所述时间信息判断模块发送判断命令， 指示所述时间信息判断模块进行后续判断。
较佳地， 所述终端中预定义的阔值为 24小时， 所述更新时间临界点为 0 点。
由上可见，本发明在 CMMB标准中充分利用网络信息表更新序号字段及 ESG更新序号字段来确认网络归属地是否发生变化及 ESG信息是否发生更 新； 同时根据 ESG信息更新幅度的大小， 在部分更新和全部更新之间实现了 一个高效的更新策略， 既避免了在 ESG信息只有部分更新时釆用全部重收 / 更新带来的 ESG信息接收、 解析的时间消耗， 又避免了在 ESG信息大部分 更新时对 ESG基本描述表频繁的比较工作， 高效的实现了终端的 ESG更新 操作。
附图概述
图 1为本发明实现 ESG更新的方法流程示意图；
图 2为本发明复用帧头结构示意图； 图 3为本发明 ESG开机更新处理流程图；
图 4为本发明实现 ESG更新的终端的结构图。 本发明的较佳实施方式
下面将结合附图对本发明的具体实施进行更详细的说明。
本发明的基本构思是： 在 ESG信息更新幅度大时， 终端釆取全部重收的 更新方式；在 ESG信息部分更新时，通过 ESG更新指示寻找发生更新的 ESG 表和子表来进行部分更新； 同时在网络归属地发生改变时， 釆用更加合理的 ESG更新方式。
本发明实现 ESG更新的方法流程如图 1所示， 主要包括以下步骤： 步骤 101 : 终端在接收到 ESG时， 保存该 ESG及本次接收到该 ESG的 时间信息；
在 CMMB 中， 复用的功能是完成音频、 视频、 数据、 ESG等信息的封 装和排列， 使其能够在移动多媒体广播信道上传送； 而一个复用帧由复用帧 头、 复用帧净荷和填充组成。 终端在接收到由多个复用帧组成的广播信道帧 后， 会解复用出如图 2所示的复用帧头中携带的 ESG更新指示及网络更新指 示， 其中， ESG更新指示即 ESG更新序号， 网络更新指示即网络信息表更新 序号；
步骤 102: 该终端再次接收到一个 ESG时， 才艮据本次接收到 ESG的时间 信息与该终端中保存的上次接收到 ESG的时间信息判断是否满足全部重新更 新 ESG的条件， 若满足， 则执行步骤 103' : 终端将其上保存的 ESG全部更 新为本次接收到的 ESG; 否则， 执行步骤 103。
步骤 103: 判断该 ESG中携带的 ESG更新指示与其上保存的 ESG中的 ESG更新指示的值是否相同， 若相同， 则执行步骤 104': 直接读取、 使用终 端中保存的 ESG信息， 并把它作为当前有效的 ESG信息； 否则， 执行步骤 104。
步骤 104: 根据 ESG基本描述表对终端上发生变更的 ESG表和 /或子表 进行更新。 步骤 105: 终端在完成上述各项判断和比较后， 无论是否对其上 ESG进 行更新， 都需要将其上保存的时间信息更新为本次接收 ESG的时间信息。
其中， 全部重新更新 ESG的条件可以为： 终端接收到 ESG的时间信息 与终端中保存的接收到 ESG 的时间信息的差值大于终端中预定义的一个阔 值； 或终端接收到 ESG的时间信息与终端中保存的接收到 ESG的时间信息 位于终端中预定义的更新时间临界点两侧。 在预定义上述阔值或更新时间临 界点时， 可参照 ESG的编排计划， 如当节目以今天、 明天、 后天来进行编排 时， 可将阔值设为 24小时， 将更新时间临界点设置为零点 （00:00 ) 。
为保证终端不会因为发生漫游而导致漏接或错接 ESG ,还可以在步骤 102 中， 比较两个时间信息之前先对该终端是否已发生所在地变化进行判断， 即 通过比较该终端本次接收到的 ESG中携带的网络更新指示的值与其上保存的 ESG中的网络更新指示的值来判断 ESG的归属地是否发生变化，若二者不同， 则说明终端的所在地已发生变更， 则该终端将其上保存的 ESG全部更新为本 次接收到的 ESG后结束； 否则， 则说明终端的所在地没有发生变更， 其执行 后续对上述两个时间信 ,包、的判断。
可见， 釆用本发明可以有效的实现终端上 ESG的更新。 该实施例对目前 ESG的更新技术存在的问题进行了解决和完善， 提高了 ESG更新的效率。
下面将以一个终端关机后再次开机为例， 对本发明进行进一步说明。 如图 3所示， 终端 ESG的更新方法， 包括如下步骤：
步骤 100, 手机关机时， 在手机内存中保存当前的 ESG信息以及最后一 次接收 /更新 ESG的时间； 手机开机且进入手机电视业务， 接收到 ESG后， 读取其中的网络信息表更新序号； 步骤 200, 手机终端从业务标识为 0的复用帧的复用净荷中解复用表标 识号为 0x01的网络信息表， 通过同手机终端保留的 ESG的网络信息表更新 序号， 判断网络所属的归属地是否发生改变；
如果网络所属的归属地发生改变， 表明手机电视节目的计费有变化， 一 般 ESG信息更新较大。 进入步骤 310。 否则进入步骤 300。
步骤 310, 手机终端全部重新接收 ESG信息， 通过 ESG的接收， 完成 ESG解析后， 进行 ESG信息的显示， 同时需要保存相应的 ESG信息和当前 获取 ESG信息的系统时间， 考虑到在内存中保留比较耗时， 可以先在文件的 数据结构中暂时保存， 待关机时统一写入内存， 结束；
步骤 300, 判断本次开机后接收到 ESG的时间信息与关机前保存下来的 时间信息的差值是否大于 24 小时或是否分别位于零点两侧， 若是， 则表明 ESG更新幅度大， 这时候直接重收是最简单有效的方式， 进入步骤 310; 否 则， 进入步骤 400。
步骤 400, 终端解复用会检测如图 2所示的复用帧头的 ESG更新序号， 判断其是否发生变化； 如果有变化， 进入步骤 420; 否则进入步骤 410;
步骤 410, ESG更新序号没有变化， 表明 ESG没有发生更新， 读取关机 前保存的 ESG信息作为当前的 ESG信息， 并且进行 ESG显示， 此时需要更 新获取 ESG的信息为当前时间， 结束。
步骤 420, ESG更新序号发生变化， 表明 ESG发生了更新； 手机终端从 业务标识为 0的复用帧的复用净荷中解复用表标识号为 0x06的 ESG基本描 述表； 通过同手机内存中保留的 ESG基本描述表比较来确定哪些 ESG表或 者子表发生了更新， 并且对发生更新的 ESG表和子表进行更新处理。 同时需 要保存相应的 ESG信息和当前获取 ESG信息的系统时间。
步骤 430 , 手机关机时， 把最后一次进行处理的 ESG信息和更新时间写 入手机内存， 以便下一次手机开机时更新 ESG使用。
在上述步骤中，每次接收或是更新 ESG信息，均需要记录当前系统时间， 在手机关机时， 把该时间写入手机内存中指定位置， 如果内存指定位置中已 经有相应时间的记录， 则直接进行覆盖。
而实现 ESG更新的终端如图 4所示， 包含存储模块、 更新模块、 时间信 息判断模块及更新指示判断模块， 其中，
存储模块， 用于在接收到 ESG时， 保存该 ESG及接收到该 ESG的时间 信息； 还用于保存更新后的 ESG及 ESG时间信息；
更新模块用于在接收到更新命令后，将其上保存的 ESG全部更新为本次 接收到的 ESG;还用于将其上保存的时间信息更新为本次接收 ESG的时间信 息；
时间信息判断模块， 用于根据本次接收到 ESG的时间信息与存储模块中 保存的时间信息判断出是否满足全部重新更新 ESG的条件， 若是， 则向所述 更新模块发送更新命令； 否则， 向更新指示判断模块发送判断命令。 其中， 全部重新更新 ESG的条件为： 终端接收到 ESG的时间信息与存储模块中保 存的接收到 ESG的时间信息的差值大于所述终端中预定义的一个阔值， 或终 端接收到 ESG的时间信息与存储模块中保存的接收到 ESG的时间信息位于 所述终端中预定义的更新时间临界点两侧。
更新指示判断模块， 用于在接收到判断命令后， 比较本次接收到的 ESG 中携带的 ESG更新指示与存储模块中保存的 ESG中的 ESG更新指示的值， 若二者相同则向更新模块发送所述更新命令。 该终端中还可以包括： 网络更新指示判断模块。
该网络更新指示判断模块用于判断终端本次接收到的 ESG中携带的网络 更新指示的值与存储模块中保存的上次接收到的 ESG中的网络更新指示的值 是否相同， 若二者不同， 则用于向所述更新模块发送更新命令； 否则， 用于 向时间信息判断模块发送判断命令， 指示所述时间信息判断模块进行后续判 断。
当然， 本发明还可有其它多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
本发明在 CMMB标准中充分利用网络信息表更新序号字段及 ESG更新 序号字段来确认网络归属地是否发生变化及 ESG信息是否发生更新； 同时根 据 ESG信息更新幅度的大小，在部分更新和全部更新之间实现了一个高效的 更新策略， 既避免了在 ESG信息只有部分更新时釆用全部重收 /更新带来的 ESG信息接收、解析的时间消耗， 又避免了在 ESG信息大部分更新时对 ESG 基本描述表频繁的比较工作， 高效的实现了终端的 ESG更新操作， 因此具有 很强的工业实用性。

Claims

权 利 要 求 书
1、 一种实现移动多媒体广播电子业务指南 ESG更新的方法， 该方法包 括以下步骤：
终端在接收到 ESG时，保存所述 ESG及本次接收到该 ESG的时间信息； 所述终端再次接收到 ESG时， 根据本次接收到 ESG的时间信息与所述 终端中保存的上次接收到 ESG 的时间信息判断是否满足全部重新更新 ESG 的条件，若是，则所述终端将其上保存的 ESG全部更新为本次接收到的 ESG; 否则， 所述终端判断所述 ESG中携带的 ESG更新指示与其上保存的 ESG中 的 ESG更新指示的值是否相同， 不相同时对终端上发生变更的 ESG信息进 行更新。
2、 如权利要求 1所述的方法， 其中， 所述终端将其上保存的 ESG全部 更新为本次接收到的 ESG之后或对终端上发生变更的 ESG信息进行更新之 后， 该方法进一步包括：
所述终端将其上保存的时间信息更新为本次接收 ESG的时间信息。
3、 如权利要求 1或 2所述的方法， 其中，
所述全部重新更新 ESG的条件为：
所述终端再次接收到 ESG 的时间信息与所述终端中保存的上次接收到 ESG的时间信息的差值大于所述终端中预定义的一个阔值， 或
所述终端再次接收到 ESG 的时间信息与所述终端中保存的上次接收到 ESG的时间信息位于所述终端中预定义的更新时间临界点两侧。
4、如权利要求 1或 2所述的方法，其中， 所述终端再次接收到 ESG后， 且根据本次接收到 ESG的时间信息与所述终端中保存的接收到 ESG的时间 信息判断是否满足全部重新更新 ESG的条件之前， 该方法还包括以下步骤： 所述终端判断本次接收到的 ESG中携带的网络更新指示的值与其上保存 的上次接收到的 ESG中携带的网络更新指示的值是否相同， 若相同， 则所述 终端执行判断本次接收到 ESG 的时间信息与所述终端中保存的上次接收到 ESG的时间信息是否满足全部重新更新 ESG的条件的步骤； 否则， 所述终端 将其上保存的 ESG全部更新为本次接收到的 ESG后结束。
5、 如权利要求 4所述的方法， 其中， 该方法包括：
所述终端确定所述 ESG中携带的 ESG更新指示与其上保存的 ESG中的 ESG更新指示的值相同时， 不对其上保存的 ESG进行更新， 使用终端保存的 ESG, 所述终端将其上保存的时间信息更新为本次接收 ESG的时间信息。
6、 如权利要求 3所述的方法， 其中，
所述终端中预定义的阔值为 24小时， 所述更新时间临界点为 0点。
7、一种实现移动多媒体广播 ESG更新的终端，该终端包含存储模块、 更 新模块、 时间信息判断模块及更新指示判断模块， 其中，
所述存储模块用于在接收到 ESG时，保存所述 ESG及本次接收到该 ESG 的时间信息； 还用于保存更新后的 ESG;
所述更新模块用于在接收到更新命令后，将其上保存的 ESG全部更新为 本次接收到的 ESG;
所述时间信息判断模块用于根据本次接收到 ESG的时间信息与所述存储 模块中保存的上次接收到 ESG 的时间信息判断是否满足全部重新更新 ESG 的条件， 若是， 则向所述更新模块发送所述更新命令； 否则， 向所述更新指 示判断模块发送判断命令；
所述更新指示判断模块用于在接收到所述判断命令后， 判断本次接收到 的 ESG中携带的 ESG更新指示与所述存储模块中保存的上次接收到 ESG中 的 ESG更新指示的值是否相同， 在确认不相同时向所述更新模块发送所述更 新命令。
8、 如权利要求 7所述的终端， 其中，
所述更新模块还用于将其上保存的时间信息更新为本次接收 ESG的时间 信息；
所述存储模块还用于保存更新后的 ESG时间信息。
9、 如权利要求 7或 8所述的终端， 其中，
所述全部重新更新 ESG的条件为： 所述终端接收到 ESG的时间信息与 所述存储模块中保存的接收到 ESG的时间信息的差值大于所述终端中预定义 的一个阔值， 或所述终端接收到 ESG的时间信息与所述存储模块中保存的接 收到 ESG的时间信息位于所述终端中预定义的更新时间临界点两侧。
10、 如权利要求 7或 8所述的终端， 其中， 该终端还包括： 网络更新指 示判断模块， 所述网络更新指示判断模块用于比较所述终端本次接收到的
ESG中携带的网络更新指示的值与所述存储模块中保存的 ESG中的网络更新 指示的值， 若二者不同， 则用于向所述更新模块发送所述更新命令； 否则， 用于向所述时间信息判断模块发送判断命令， 指示所述时间信息判断模块进 行后续判断。
11、 如权利要求 9所述的终端， 其中，
所述终端中预定义的阔值为 24小时， 所述更新时间临界点为 0点。
PCT/CN2009/072750 2008-11-05 2009-07-14 一种实现移动多媒体广播电子业务指南更新的方法及终端 WO2010051701A1 (zh)

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CN101420602B (zh) 2010-12-08
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US20110209176A1 (en) 2011-08-25
EP2355383A1 (en) 2011-08-10

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