Method for differentiating transmissions of control information and media information in mobile multimedia broadcast

A mobile multimedia and media information technology, applied in the direction of pulse modulation TV signal transmission, transmission system, image communication, etc., can solve the problem of unusable, etc., and achieve the effect of high security, high spectrum utilization rate and high error protection

Inactive Publication Date: 2009-09-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method distinguishes between media information and control information, and uses RTSP to transmit control information to ensure high reliability of control information transmission. However, the ISMA method is only suitable for use on IP networks and cannot be used in mobile multimedia broadcasting systems.

Method used

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  • Method for differentiating transmissions of control information and media information in mobile multimedia broadcast
  • Method for differentiating transmissions of control information and media information in mobile multimedia broadcast
  • Method for differentiating transmissions of control information and media information in mobile multimedia broadcast

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] The method of the present invention first divides the mobile multimedia broadcasting signal into control information and media information according to the contents and functions recorded in the data information. The composition of multimedia service data transmitted in one channel can be varied, for example, as figure 1 As shown, the embodiment of the present invention provides a form, wherein the multimedia service data transmitted in one channel may be composed of packet header, video data, audio data, and synchronization data.

[0027] The packet header records the parameters describing the media data of a channel, such as length information, program information, video parameters, audio parameters, time stamp, data security parameters, check code and so on.

[0028] The control information is separated from the media...

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Abstract

A method for transmitting the control information and the media information of the mobile multimedia broadcast differentially, comprises:dividing the wireless multimedia broadcast signal to the control information and the media information in accordance with the content recorded in the data information and it's effect;packeting the control information and the media information by different multiplex modes respectively;transmitting them by different modulation mode via the air, and the packeting mode and the modulation mode used for the control information provide higer error code protection, then the control information is protected prior when it is transmitted via wireless air.

Description

technical field [0001] The invention relates to a method for transmitting mobile multimedia broadcast information, and belongs to the technical field of mobile multimedia broadcast or mobile phone television. 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 air data transmitted by the system is divided into different channels and transmitted separately through the multiplexing technology. The terminal can receive the relevant data, and realize the normal broadcasting of the TV through the player on the terminal. [0004] The information received by the terminal can be divide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04N7/64H04N19/89
CPCH04L1/0083
Inventor 沈灿王志英
Owner ZTE CORP
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