Method, device and system for transmitting data in digital multimedia broadcasting
A technology for multimedia broadcasting and data transmission, applied in the transmission system, broadcasting multiple pieces of information at the same time, electrical components, etc., can solve the problem that business data cannot bring users a good experience, and achieve rich and flexible time domain division methods and various methods , increase the effect of user experience
Active Publication Date: 2017-05-17
ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION +1
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Problems solved by technology
[0004] However, traditional digital transmission systems usually only send or receive a single type of business data during a single transmission, and a single type of business data cannot bring a good user experience
Method used
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[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0031] In order to achieve the object of the present invention, the embodiment of the present invention proposes a method for transmitting data in digital multimedia broadcasting.
[0032] Such as figure 1 shown, including the following steps:
[0033] S101: The digital multimedia broadcasting sender divides at least two types of service data into logical subframes, and maps the logical subframes into physical signal frames according to a preset subframe mapping method, and sends the physical signal frames to the digital multimedia bro...
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The embodiment of the present invention proposes a method for transmitting data in digital multimedia broadcasting, including the following steps: the digital multimedia broadcasting sending end divides at least two types of service data into logical subframes, and divides the service data into logical subframes according to a preset subframe mapping method The logical subframe is mapped to a physical signal frame, and the physical signal frame is sent to the digital multimedia broadcasting receiving end, and the digital multimedia broadcasting receiving end obtains the physical signal frame from the physical signal frame according to the preset subframe mapping method At least one kind of business data in the at least two types of business data. The embodiment of the present invention also proposes a system for transmitting data in digital multimedia broadcasting and a digital multimedia broadcasting sending end. By applying the embodiments of the present invention, it is possible to transmit multiple types of service data and increase user experience, and it has rich and flexible time domain division methods, and multiple service data are allocated in various ways in the time domain, which can meet the requirements for time allocation under various channel conditions. Diversity needs.
Description
technical field [0001] The present invention relates to the technical field of digital multimedia broadcasting, in particular, the present invention relates to a method, device and system for transmitting data in digital multimedia broadcasting. Background technique [0002] Digital Multimedia Broadcasting (Digital Multimedia Broadcasting, DMB) is a new concept multimedia mobile broadcasting service that integrates communication and broadcasting. In addition to supporting traditional audio broadcasting, this technology can also transmit various multimedia information such as traffic information and news to mobile terminals through MPEG-4H.264, MPEG-2, AAC+, etc., providing high-quality Excellent sound quality and diverse data services. [0003] The biggest feature of digital multimedia broadcasting is that it is broadcast, point-to-multipoint, point-to-face, and the cost of broadcasting information has nothing to do with the number of users. Therefore, digital multimedia b...
Claims
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IPC IPC(8): H04N21/236H04N21/434
CPCH04N21/631H04H20/28H04L65/611H04L65/70
Inventor 高鹏盛国芳李锦文吴智勇雷文尹华镜刘志凯白栋
Owner ACADEMY OF BROADCASTING SCI STATE ADMINISTATION OF PRESS PUBLICATION RADIO FILM & TELEVISION