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An emergency broadcast processing method and system

An emergency broadcasting and broadcasting system technology, applied in broadcasting service distribution, communication between multiple stations, pulse modulation TV signal transmission, etc., can solve the problems of low frequency of emergency broadcasting, mobile multimedia broadcasting terminal operation and power consumption, etc. problem, to achieve the effect of avoiding operation and power consumption

Inactive Publication Date: 2007-05-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if this approach is adopted in the mobile multimedia broadcasting network, since the receiving side needs to perform continuous out-of-band detection, and the frequency of emergency broadcasts is very low, it will bring unnecessary operations and power consumption to the mobile multimedia broadcasting terminal.

Method used

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  • An emergency broadcast processing method and system

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Embodiment Construction

[0042]The method of the present invention provides an in-band mode (sending together with data of other channels / services) to send the emergency broadcast instruction to the terminal in the mobile multimedia broadcast network, and the terminal judges whether it needs to switch to the emergency broadcast channel according to the emergency broadcast instruction . The sending end of the mobile multimedia broadcasting network uses a specific logical channel to send the emergency broadcast, and the parameters of the channel are known to the receiving terminal. In practical applications, the emergency broadcast channel can be used to transmit emergency broadcast content, and the emergency broadcast channel can also be used to transmit emergency broadcast message+text and / or sound content. Because the emergency broadcast channel is only available for emergency broadcasts, it may have limited capacity to transmit moving images. Therefore, according to the transmitted emergency broadc...

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Abstract

This invention relates to emergency broadcasting process method, which comprises the following steps: the system send end set emergency indication at each multiplex frame bolt information and setting as initial value when there is not emergency broadcast; if there is, send end sets the emergency indication as other value and to send content; terminal judges whether the indication value is same with initial value to respond the indication and to store it into buffer area; terminal switches emergency broadcast or original channel to receive to judge the indication is different to initial value while same with buffer value.

Description

technical field [0001] The invention relates to a method and system for processing emergency broadcasts in a mobile multimedia broadcasting system. Background technique [0002] In recent years, digital mobile multimedia broadcasting technology and standards have developed rapidly, such as DVB-H (Digital Video Broadcast Handheld Receiver: Digital Video Broadcast Handheld) in Europe, and Media FLO (Media Forward Link Only) in the United States. , BCMCS (Broadcast and Multicast Services: Broadcast and Multicast Services) and BCAST (Broadcast: Broadcast) based on mobile cellular, digital mobile multimedia broadcasting network provides many service contents for its end users, such as weather forecast, news, sports programs, variety shows , multimedia broadcasting dramas, movies and other programs, users can choose mobile multimedia broadcasting service programs according to their own preferences. [0003] However, in digital broadcasting, the network side can multiplex the text...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04Q7/22H04W4/06H04N7/52H04W4/12
Inventor 王标江华李嵘朱晓光
Owner ZTE CORP
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