A transmission method for mobile multi-media broadcast service data stream

A technology for mobile multimedia and broadcasting services, applied in the field of data flow transmission of mobile multimedia broadcasting services, can solve the problems of error diffusion, affecting the transmission efficiency and fault tolerance of multimedia broadcasting systems, and achieves low header overhead, guaranteed performance, and high transmission efficiency. Effect

Inactive Publication Date: 2007-12-12
ZTE CORP
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Problems solved by technology

When an error occurs in data transmission, since there is no clear boundary distinction between the video unit, audio unit, data unit and its adjacent units, the data of all units of the video segment / audio segment / data segment needs to be discarded, that is, it cannot be discarded only The unit of the error part leads to error diffusion, which greatly affects the transmission efficiency and fault tolerance of the multimedia broadcasting system

Method used

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  • A transmission method for mobile multi-media broadcast service data stream
  • A transmission method for mobile multi-media broadcast service data stream

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] The main idea of ​​the present invention is to use one or more multiplexing blocks to carry the service data packets of the mobile multimedia broadcasting system, especially the data packets transmitted according to the real-time transport protocol, and each multiplexing block contains at least a start code and a position mark, Then the multiplexing block is encapsulated as a load into corresponding service data units, namely video units, audio units or data units, and then the service data units are packaged into multiplexing subframes of the mobile multimedia broadcasting standard multiplexing frame structure, and then the multiplexing The subframes form a multiplexing frame, which is transmitted through the mobile multimedia broadcasting network.

[0025] In this embodiment, a method for transmitting a mobile multimedia broadcast service data stream...

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Abstract

A transmission method of mobile multimedia broadcasting data flow belongs to mobile multimedia broadcasting technique field. The invention uses one or more multiplexed blocks to load operation data package of mobile multimedia broadcasting system; then said multiplexed blocks are as load to be encapsulated in video, audio or data unit of mobile multimedia broadcasting standard multiplexing frame which is corresponding with operation data package, then said video, audio or data unit are encapsulated into multiplexing frame composed by sub frames, transmitted by mobile multimedia broadcasting network. The invention guarantees characters of mobile multimedia broadcasting system that is the efficiency of transmission is high, fault-tolerant is well, and performance of multimedia broadcasting transmission is guaranteed at the same time.

Description

technical field [0001] The invention belongs to the technical field of mobile multimedia broadcasting, and in particular relates to a transmission method of mobile multimedia broadcasting service data flow. Background technique [0002] Mobile multimedia broadcasting is a broadcasting multimedia playing technology emerging in recent years. Through the hand-held terminal, in the case of high-speed movement, you can watch multimedia services such as TV. The terminal receives the multimedia service program list through the wireless broadcast channel, and can select the channel it has the right to watch, and accept the multimedia data of the selected channel, so as to realize watching TV on the mobile terminal. [0003] At present, the mobile multimedia broadcasting system can adopt a variety of data transmission methods, such as transport stream, multi-protocol encapsulation, and IP data encapsulation. In China's mobile multimedia broadcasting system, the multiplexing frame s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/52H04N7/64H04L12/16H04L12/56H04N19/89
CPCH04L29/06517H04L65/4076H04W72/005H04L2001/0093H04L65/608H04L65/607H04L1/0083H04L29/06455H04N21/4341H04N21/2368H04L29/0651H04L12/189H04L65/611H04L65/65H04L65/70H04W72/30
Inventor 谢大雄晏祥彪王标方源立张建强
Owner ZTE CORP
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