Physical frame communication method for wireless digital multimedia broadcasting system

Abstract

The invention provides a physical frame communication method for a wireless digital multimedia broadcasting system. The physical frame communication method comprises the steps that wireless broadcast transmitting equipment sends a wireless signal composed of a plurality of physical frames to wireless broadcast receiving equipment, wherein the physical frame comprises conventional orthogonal frequency division multiplexing symbols, the conventional orthogonal frequency division multiplexing symbols comprise a signaling symbol carrying a first mapping unit, a data symbol carrying a second mapping unit, and / or a frame tail symbol carrying a third mapping unit; and the first mapping unit, the second mapping unit and the third mapping unit are mapped into virtual resource particles of virtual resource grids used for describing the volumes of the physical frames according to a preset mapping mode, wherein the virtual resource grid comprises a first structural taper, a second structural taper and a third structural taper. The physical frame communication method for the wireless digital multimedia broadcasting system provided by the invention can support the broadcast transmission demands of the next generation of wireless broadcast on application scenes, networking ability, flexible, efficient and reliable transmission and other aspects.

Description

technical field [0001] The invention belongs to the technical field of wireless digital multimedia broadcasting communication, and relates to a communication method, in particular to a physical frame communication method of a wireless digital multimedia broadcasting system. Background technique [0002] With the rapid development of digital technology and information technology, the world has entered the era of digitization, informationization and networking, and digital multimedia broadcasting has also developed rapidly. At present, there are mainly the following types of digital TV broadcasting standards in the world: European Digital TV Broadcasting (DVB) standard, American Advanced Television Systems Committee (ATSC) standard, and Japanese Integrated Services Digital Broadcasting (ISDB) standard. China's digital TV began to develop under the atmosphere of increasing international digitalization, and launched the Digital TV Terrestrial Multimedia Broadcasting (DTMB) stand...

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Problems solved by technology

[0008] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a physical frame communication method of a wireless digital multimedia broadcasting system, which is used to solve the problem that the physical frame communication method of a wireless digital multimedia broadcasting system in the prior art cannot fully adapt to multiple In various application scenarios, the transmission requirements of efficient transmission cannot be realized

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