Data file receiving method and device in mobile multimedia broadcasting system

A technology for moving multimedia and data files, which is applied to broadcasting devices, broadcasting-related systems, transmission systems, etc., and can solve problems such as user experience degradation, incomplete FAT tables and/or files, and discarded FAT files and/or file files. Achieve the effect of shortening the receiving time and improving user experience

Active Publication Date: 2011-01-26
HUAWEI TEHCHNOLOGIES CO LTD
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AI Technical Summary

Problems solved by technology

[0011] Due to the instability of wireless transmission, in practical applications, the payload part of the XPE unit may be damaged, correspondingly, it will cause the subsequent CRC check to fail, and then cause the FAT chip encapsulated in the payload part of the XPE unit to be damaged. and/or file slices are discarded, making the FAT table and/or files received by the terminal incomplete
In this way, the term

Method used

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  • Data file receiving method and device in mobile multimedia broadcasting system
  • Data file receiving method and device in mobile multimedia broadcasting system
  • Data file receiving method and device in mobile multimedia broadcasting system

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Embodiment Construction

[0038] Traditional CMMB services are mostly broadcast, so terminals only need to have downlink receiving functions. However, with the extensive development of interactive services and value-added services, more and more terminals have uplink communication functions, that is, they can communicate with broadcast front-end The server communicates, specifically, it can communicate with the server through second generation mobile communication (2G) technology, third generation mobile communication (3G) technology, wireless local area network (WLAN) or local area network (LAN).

[0039] In the solution of the present invention, the uplink communication function of the terminal is utilized, and when the FAT table and / or file received by the terminal is incomplete, the server is requested for the missing FAT sheet and / or file sheet, thereby shortening the reception of the data file time, improving the user experience.

[0040] In order to make the technical solution of the present inv...

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Abstract

The invention provides a data file receiving method in a mobile multimedia broadcasting system. The method comprises the following steps of: A, receiving a File Attribute Table (FAT) of the periodic broadcast of a server by a terminal, when the preset condition is satisfied, judging whether the FAT is completely received, if so, executing a step C, otherwise, requesting missing FAT fragments from the server, and executing a step B; B, receiving the missing FAT fragments returned by the server by a terminal; C, receiving a file of the periodic broadcast of the server by a terminal, when the preset condition is satisfied, judging whether the file is completely received, if so, ending the processing, otherwise, requesting missing file fragments from the server; and D, receiving the missing file fragments returned by the server by a terminal. The invention simultaneously discloses a terminal and a server. By using the scheme of the invention, the receiving time of the data file can be reduced so as to further improve the user experience.

Description

technical field [0001] The invention relates to mobile multimedia broadcasting (CMMB) technology, in particular to a data file receiving method, terminal and server in the mobile multimedia broadcasting system. Background technique [0002] CMMB is a mobile TV technology independently developed by my country. According to the basic principles of "integration of space and ground, combination of satellite and network, unified standards, and nationwide roaming", a mobile multimedia broadcasting network covering the whole country and a unified operating mechanism are established. The network provides point-to-point radio and television programs to mobile phones, personal digital assistants (PDAs), moving image expert compression standard audio level 3 (MP3), MP4, digital cameras, notebook computers, and small receiving terminals on vehicles and ships. [0003] In the existing CMMB system, when broadcasting data files, the server at the front end of broadcasting will send the file...

Claims

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Application Information

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IPC IPC(8): H04H60/85H04H20/57H04L29/06H04L1/00
Inventor 张辉王西强肖兵李刚冷振兴
Owner HUAWEI TEHCHNOLOGIES CO LTD
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