Method and device for realizing multi-frequency point multiplexing of paths of data

A multi-frequency, data technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of operators' operating costs and maintenance costs, and achieve the effect of saving hardware and software costs

CN102014299AActive Publication Date: 2011-04-13ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2011-04-13

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Abstract

The invention discloses a method and a device for realizing the multi-frequency point multiplexing of a plurality of paths of data. The method comprises the following steps of: generating a corresponding relationship table between multiplexing sub-frame numbers and frequency point numbers according to the control information of a plurality of frequency points; filling a plurality of paths of source code data corresponding to each frequency point number in the corresponding relationship table as multiplexing sub-frame data into the multiplexing sub-frame numbers corresponding to each frequency point number; forming the multiplexing frame data of the corresponding frequency point numbers by using the multiplexing sub-frame data in the multiplexing sub-frame numbers corresponding to each frequency point number; and packaging the multiplexing frame data of the corresponding frequency point numbers into packaged multiplexing stream (PMS) packets and outputting the PMS packets to a modulator. In the device, a control unit, a multiplexing processing unit, multiplexing packaging units of the plurality of frequency points, and a transcoding unit perform data exchange through network equipment. In the method and the device, a plurality of paths of television program data are multiplexed and converted into a plurality of paths of data code streams suitable for modulation and transmission under the condition of not increasing the running and maintenance cost.
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Description

technical field

[0001] The invention relates to the technical field of mobile multimedia broadcasting, in particular to a method and device for realizing multi-frequency point multiplexing of multi-channel data. Background technique

[0002] At present, there are multiple industry standards for mobile multimedia broadcasting or mobile TV in the world. Among them, the CMMB (China Multimedia Mobile Broadcasting) standard is a mobile TV industry standard independently developed by China and has been widely valued. The standard includes multiple parts, among which the second part of the multiplexing specification defines the multiplexing subframe structure of video, audio, data and control information in the mobile multimedia broadcasting system and the structure of the multiplexing frame composed of multiple multiplexing subframes . With the continuous promotion and popularization of mobile TV, operators need to continuously increase mobile TV programs to meet the increasing u...

Examples

no. 1 example

[0037] In the first embodiment of the present invention, a method for realizing multi-frequency point multiplexing of multi-channel data, such as figure 1 shown, including the following specific steps:

[0038] Step S101, generate a multiplexing subframe number and frequency point number correspondence table according to the multiplexing frame configuration table and network information table in the control information of multiple frequency points, and generate the control information of the corresponding frequency point from the control information of multiple frequency points frame. In this field, the control information generally includes: a multiplexing frame configuration table, a network information table, a service configuration table, channel configuration information of the multiplexing frame, and the like.

[0039] The multiplexing frame configuration table contains the correspondence between the multiplexing frame number and the multiplexing subframe number, and th...