Method for reducing time of switching channels

A channel switching and timing technology, which is applied in the direction of analog security/charging system, pulse modulation TV signal transmission, etc., can solve the problems of long switching time, affecting the terminal's "program channel switching time, inconvenient use, etc.

CN1960475AInactive Publication Date: 2007-05-09ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2007-05-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The method is used for reducing the channel switching time of user terminal in multimedia broadcast system and comprises: when channel is switched, the maximum value in total length of a group of data frames capable of being processed by each processing module in UE (user end) of multimedia broadcast is defined as the length of switched frame; according to the length of switched frame, each processing module at system side processes its own data frame, arranges a group of data frames capable of being processed by the corresponding module in UE within one switching frame length, and for the data frames in previous module outputted in one switching frame length, after processing by next processing module, its corresponding data frame must be outputted in one switching frame length.
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Description

technical field

[0001] The invention relates to the technical field of digital mobile multimedia broadcasting, in particular to a method for reducing channel switching time in the channel switching technology of a mobile multimedia broadcasting system. Background technique

[0002] In recent years, digital mobile multimedia broadcasting technologies and standards have developed rapidly, for example, DVB-H (Digital Video Broadcasting Handheld Receiver: Digital Video Broadcast Handheld) in Europe, and MediaFLO (Media Forward Link Only) in the United States , Mobile cellular-based technologies and standards such as BCMCS (Broadcast and Multicast Services: Broadcast and Multicast Services) and BCAST (Broadcast: Broadcast). The digital mobile multimedia broadcasting network provides many service contents for its end users, such as advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas, movies and other program contents, and users can choo...

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Embodiment Construction

[0038] The method for reducing channel switching time according to the present invention will be described in detail below in conjunction with specific implementation methods and accompanying drawings.

[0039] The channel switching time of the user terminal in the multimedia broadcasting system is mainly determined by the module switching waiting time of each module of the user terminal, and the module switching waiting time of each module of the user terminal is mainly determined by the characteristics of the broadcasting system. Therefore, we can broadcast The data frames processed by each module on the system side of the system are adjusted to effectively reduce the channel switching time of the terminal.

[0040] According to the characteristics of the "module switching waiting time" of each processing module of the user terminal of the multimedia broadcasting system, the present invention proposes alignment processing by aligning the data frames of each processing module ...