Method for transmitting emergency broadcast message through CMMB emergency broadcast table
An emergency broadcast and message technology, applied in the field of transmitting emergency broadcast messages through the CMMB emergency broadcast table, to achieve the effect of improving user experience
Inactive Publication Date: 2011-05-11
ACAD OF BROADCASTING SCI SARFT
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Problems solved by technology
However, due to the particularity of emergency broadcasts and the characteristics of CMMB, emergency broadcast messages must be transmitted through control logic channels with limited bandwidth resources, which leads to the inability to transmit rich multimedia emergency broadcast messages directly through emergency broadcast tables. We need a A fast and efficient way to solve the problem of transmitting multimedia emergency broadcast messages in the CMMB system, and at the same time improve users' experience in receiving emergency broadcast messages
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[0018] The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:
[0019] Before describing the method of the present invention in detail, the following introduces China Mobile Multimedia Broadcast (CMMB for short) and China Mobile Multimedia Broadcast multiplexing frames, so as to better understand the present invention.
[0020] The CMMB system uses high-power S-band satellite signals to cover the whole country, uses ground supplementary transponders to forward satellite signals at the same frequency and content at the same time, supplements points to cover satellite signal blind areas, and uses wireless mobile communication networks to construct return channels to form one-way broadcast and A mobile multimedia broadcasting network combined with two-way interaction.
[0021] Because the data volume and transmission environment required by the mobile multimedia broadcasting system are different from those of...
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The invention discloses a method for transmitting emergent broadcast message via a CMMB emergent broadcast table, comprising the following steps of: dismantling and packaging the emergent broadcast message into one or a plurality of emergent broadcast data sections suitable for loading by the emergent broadcast table, and transmitting the data sections in a control logic channel of a CMMB system via the emergent broadcast table; receiving the emergent broadcast table by a terminal in virtue of the control logic channel, de-packaging and combining the emergent broadcast data sections to obtainthe emergent broadcast message. The invention realizes transmission and reception of the emergent broadcast message simply and effectively, which improves usage experience of the users.
Description
technical field [0001] The invention relates to mobile multimedia broadcast technology, in particular to a method for transmitting emergency broadcast messages through a CMMB emergency broadcast list. Background technique [0002] Emergency broadcasting is a service that uses the broadcast communication system to quickly notify the public of emergency events. When emergencies such as natural disasters, accident disasters, public health and social security occur, which cause or may cause heavy casualties, property losses, ecological environment damage and serious social hazards, and endanger public safety, emergency broadcasting provides a rapid Quick way to notify. [0003] In the United States, Europe and other regions, a complete system of emergency broadcasting has been formed, and great results have been achieved in practical applications. However, my country's emergency broadcasting is still in the development stage, although the State Council has promulgated the "Nat...
Claims
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IPC IPC(8): H04W4/06H04H20/59
Inventor 秦勇解伟陈德林陈鹏张定京
Owner ACAD OF BROADCASTING SCI SARFT