A data flow packaging method of mobile multimedia broadcasting system

A technology for mobile multimedia and broadcasting systems, applied in the field of data encapsulation of mobile multimedia broadcasting systems, can solve problems such as failing to meet the requirements of mobile multimedia broadcasting services, limited wireless bandwidth of mobile terminals, and reduced transmission rates, so as to achieve efficient transmission and reduce overhead , the effect of improving efficiency

Inactive Publication Date: 2007-05-30
ZTE CORP
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Problems solved by technology

[0007] The existing methods have their own advantages and disadvantages. The RTP method can only be used on the IP network, and the TS method uses a fixed length, resulting in relatively low transmission efficiency, often lower than 90%.
[0008] On the other hand, the wireless bandwidth that the service network can provide to each mobile terminal is very limited, and sufficient transmission rate is required to meet the clear display of the terminal, but the low transmission efficiency will inevitably lead to a decrease in the actual transmission rate, which may not reach the mobile terminal. Service requirements for multimedia broadcasting

Method used

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  • A data flow packaging method of mobile multimedia broadcasting system
  • A data flow packaging method of mobile multimedia broadcasting system
  • A data flow packaging method of mobile multimedia broadcasting system

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Embodiment Construction

[0026] The key of the present invention is segment indication, segment parameters and segments are combined into a complete encapsulation frame, segment indication and segment parameters are placed in the frame header, and segment is used as the payload of the frame. A segment indication is used to indicate whether the frame contains corresponding segment parameters and segments.

[0027] The present invention encapsulates one or more segments of the multimedia data stream together to realize high efficiency of data transmission, including the following aspects:

[0028] (1) The multimedia broadcasting system has multiple channels, and each channel transmits the media data stream of the channel.

[0029] (2) The media data stream can include video segments, audio segments, and data segments, and the media data stream can be composed of one or more of these segments. For example, the media data stream can only include video segments and audio segments without data segments; or ...

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Abstract

This invention relates to mobile multi-media broadcasting flow sealing method, which si characterized by the following: adopting data frame structure to seal multi-media data composed of frame head , visual section, audio section and data section ; the said frame head comprises visual section indication, audio section indication and data section, wherein, the visual section represents whether is ones in data frame; the said audio indication presents whether there is ones and the data section for ones in the data frame.

Description

technical field [0001] The invention relates to multimedia broadcasting technology, in particular to a data encapsulation method of a mobile multimedia broadcasting system. Background technique [0002] Mobile multimedia broadcasting is a multimedia playback technology that has emerged in recent years. With a handheld terminal, you can watch TV while moving at high speed. The terminal receives the program list through the wireless protocol, and can select the channel it has the right to watch, so that it can receive the multimedia data of the selected channel, and realize watching TV on the mobile terminal. [0003] The mobile multimedia broadcasting system is divided into different channels. The media data stream transmitted by each channel can include video segments, audio segments, and data segments according to the characteristics of the media data. It needs to be adapted and transmitted on the channels of the mobile multimedia broadcasting system through multiplexing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/52H04N7/26H04H1/00H04H20/00
Inventor 晏祥彪沈灿李嵘
Owner ZTE CORP
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