A terminal, system and method for improving terminal playback performance in a weak signal environment

A weak signal, terminal technology, applied in the direction of digital video signal modification, image communication, selective content distribution, etc., can solve problems such as playback performance degradation, signal quality attenuation, signal quality impact, etc., to eliminate mosaic and sound intermittent , to improve playback performance, the effect of low complexity requirements

Inactive Publication Date: 2016-08-03
ZTE CORP
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AI Technical Summary

Problems solved by technology

For example, in some areas in remote areas, the signal cannot be well covered; for example, on a fast-moving vehicle, the quality of the signal will also be affected due to the Doppler effect; such as in a tunnel, or in an elevator or in some buildings , the signal quality will be greatly attenuated
[0004] A weak signal will lead to an increase in the packet loss rate and packet error rate of mobile TV data packets
Packet loss and packet errors will directly lead to the reduction of playback performance, such as a large number of mosaics and intermittent sound, which will lead to the inability to watch mobile TV programs normally.

Method used

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  • A terminal, system and method for improving terminal playback performance in a weak signal environment
  • A terminal, system and method for improving terminal playback performance in a weak signal environment
  • A terminal, system and method for improving terminal playback performance in a weak signal environment

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Embodiment Construction

[0040] This embodiment provides a system for improving terminal playback performance in a weak signal environment, such as figure 1 As shown, including the network side and the terminal;

[0041] The network side includes an encoder, a control information generation module, a multiplexing module and a sending module;

[0042] The terminal includes a receiving module, an analyzing module, a storing module, a decoding module and a playing module;

[0043] The encoder is used to generate standard audio and video frames while generating corresponding redundant audio and video frames;

[0044] The above-mentioned standard audio and video frames refer to the audio and video frames generated to ensure normal playback quality. Normal playback quality refers to playback quality greater than or equal to the preset threshold value. Usually, there are no bad frames. The playback quality is generally unacceptable if the playback quality is lower than the above threshold value, and the th...

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Abstract

The present invention provides a terminal, system and method for improving the playback performance of a terminal in a weak signal environment. The method includes: the network side generates standard audio and video frames and simultaneously generates corresponding redundant audio and video frames, and converts the generated standard audio and video frames and redundant audio and video frames are sent to the terminal. After the terminal receives the standard audio and video frames and the redundant audio and video frames, if the standard audio and video frames are abnormal, the terminal processes and plays the corresponding redundant audio and video frames. By adopting the present invention, when a terminal encounters packet loss or error when processing high-quality audio and video, it can use corresponding lower-quality redundant audio and video frames, thereby eliminating mosaic in video and pause in audio.

Description

technical field [0001] The present invention relates to the field of mobile TV, in particular to a terminal, system and method for improving the playback performance of the terminal in a weak signal environment. Background technique [0002] Mobile TV (Mobile Multimedia Broadcasting) is a multimedia broadcasting technology that is being promoted and popularized at home and abroad. Through the mobile TV terminal, users can receive mobile TV signals through mobile phones and watch favorite TV programs anytime and anywhere. [0003] Due to various reasons, mobile TV networks may have coverage areas with weak signals. For example, in some areas in remote areas, the signal cannot be well covered; for example, on a fast-moving vehicle, the quality of the signal will also be affected due to the Doppler effect; such as in a tunnel, or in an elevator or in some buildings , the signal quality will be greatly attenuated. [0004] A weak signal will lead to an increase in the packet ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2368H04N21/434H04N21/61H04N21/845H04N21/647H04N19/89
Inventor 李树伍丹
Owner ZTE CORP
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