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Sending and receiving method and device of flow classification scrambling instruction information

A technology for indicating information and sending methods, applied in image communication, wireless communication, broadcast service distribution, etc., to achieve the effect of convenient processing

Inactive Publication Date: 2010-10-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, the existing scrambling indication method only indicates that the multiplexing frame has scrambled audio, video or data, so a more complete scrambling method is needed

Method used

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  • Sending and receiving method and device of flow classification scrambling instruction information
  • Sending and receiving method and device of flow classification scrambling instruction information
  • Sending and receiving method and device of flow classification scrambling instruction information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A system for sending flow classification scrambling indication information, such as image 3 As shown, it includes a program server, a scrambler, a multiplexer, a modulator and a transmitter connected in sequence, and also includes an ESG server connected to the multiplexer. The function of each part is introduced as follows.

[0058] Program server, used for encoding and packaging audio and video data, dividing and packaging data service files, and then sending them to the scrambler;

[0059] The ESG server is mainly used to manage, divide and package ESG files, and then send them to the multiplexer;

[0060] The scrambler is mainly used to scramble the audio unit, video unit and data unit, and send it to the multiplexer after scrambling;

[0061] The modulator is mainly used to modulate the multiplexing frame into an electromagnetic wave on the physical channel and send it to the transmitter;

[0062] The transmitter is mainly used to launch the electromagnetic wav...

Embodiment 2

[0070] The mobile terminal receiving the above-mentioned flow classification scrambling indication information is introduced below, such as Figure 7 As shown, including receiving unit and processing unit, where:

[0071] The receiving unit may include a demodulator and a baseband processing chip, which is used to receive electromagnetic waves, tune the received electromagnetic waves into multiplexed frames, and send them to the processing unit;

[0072] The processing unit may include the demultiplexing module and the processing of the upper layer application, etc., according to the read "video segment scrambling indication", "audio segment scrambling indication" and "data segment scrambling indication" in the multiplexed sub-frame header read Indicate the value of ", respectively process the video segment, audio segment and data segment, if it is scrambled, descramble, and then play (audio and video or data services);

[0073] Or the processing unit further reads the value ...

Embodiment 3

[0075] In this embodiment, the network side agrees with the mobile terminal to use the upper bit of the "scrambling indication" field in the frame header of each multiplexed subframe to carry the first information of whether there is a scrambling object, and use the "scrambling indication" field The low bit of the low bit carries the second information of whether the video segment is scrambled, and the two bits of the "reserved" field respectively carry the second information of whether the audio segment and the data segment are scrambled. The process of scrambling and descrambling, such as Figure 8 shown, including the following steps:

[0076] Step 801: The program server on the network side encodes the audio and video, divides the data service file, packs it and sends it to the scrambler, and the ESG server packs the file and sends it to the multiplexer;

[0077] Step 802: the scrambler scrambles the video unit, audio unit or data unit;

[0078] Step 803: The multiplexer...

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Abstract

The invention discloses a sending and receiving method and a device of flow classification scrambling instruction information, and relates to the field of digital mobile communications. The sending method of flow classification scrambling instruction information is characterized in that: in the process of packaging a copy frame, a network side carries first information showing whether scrambled objects exists in a copy subframe or not and second information showing the scrambled objects in the head of the copy subframe according to the scrambling situations of audio, video or data, and the second information shows whether the audio, the video or the data are scrambled or not. The technical scheme not only be compatible with the original agreement, but also facilitates the handling of a terminal, and is favorable for a multimedia broadcasting system to expand paid services.

Description

technical field [0001] The invention relates to the field of digital mobile communication, in particular to a method and device for sending and receiving stream classification scrambling indication information. Background technique [0002] In recent years, digital mobile multimedia broadcasting technology and standards have developed rapidly. Various standards provide mobile multimedia broadcasting terminal users with many services, such as advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas, and movies. Users can Choose the service program of mobile multimedia broadcasting according to your own hobbies. [0003] In order to realize the paid service and personalized service of the multimedia broadcasting system, it is necessary to scramble the program stream, and only authorized users can watch the program. After the user is authorized, he receives the program stream, and then descrambles the program stream to play it. [0004]...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W28/06H04L1/00H04N7/167
Inventor 韦福
Owner ZTE CORP