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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, image communication, transmission system, etc., can solve the problems of unusable, etc., and achieve the effect of high security, high spectrum utilization rate and high error protection

Inactive Publication Date: 2007-05-09
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

[0026] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] 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 form of the multimedia service data transmitted in one channel can be varied. For example, as shown in FIG. , video data, voice data, and synchronous data.

[0028] The packet header records the parameters describing the media data of a channel, length information, program information, video parameters, audio parameters, synchronization data parameters, time stamp, data security parameters, packet header check code, etc. The information recorded in the header is more important, so the header is control information, and the rest of the video data, audio data and synchronization data are media info...

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Abstract

The method comprises: according to the content recorded by data information and its function, the radio multimedia broadcast signals are divided into the control information and media information; the control information and media information are respectively packaged by using different multiplexing modes and are respectively air-transmitted by using different modulation modes; providing higher bit-error protection for the packaging mode and modulation mode of control message in order to provide higher priority protection for the control message transmitted in 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 Applications(China)
IPC IPC(8): H04N7/24H04N7/64H04N19/89
CPCH04L1/0083
Inventor 沈灿王志英
Owner ZTE CORP
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