Method and system for video coding in visual phones in mobile terminals, and mobile terminal

A video coding and mobile terminal technology, applied in two-way working systems, televisions, electrical components, etc., can solve problems such as inconvenience in actual use, abnormal interruption of communication, and obstacles to the rapid promotion and popularization of videophone services

Inactive Publication Date: 2010-03-31
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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Problems solved by technology

However, due to the complexity of the actual wireless network, videophones often experience call drop, that is, the phenomenon of abnormal communication interruption when users talk, which seriously affects the normal communication and service experience

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  • Method and system for video coding in visual phones in mobile terminals, and mobile terminal
  • Method and system for video coding in visual phones in mobile terminals, and mobile terminal
  • Method and system for video coding in visual phones in mobile terminals, and mobile terminal

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Embodiment Construction

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0033] According to the research of the present inventor, the main reasons for the dropped calls of the 3G videophone are as follows:

[0034] 1) The network signal status is not good;

[0035] 2) The network signal status is good, but the user terminals in this cell are relatively saturated at this time, and the shortage of wireless resources leads to a high bit error rate (BER) of video data. Continuously high bit error rates may cause videophone calls to drop. .

[0036] 3) The network signal status is good, but the network status is complex, such as the interference of adjacent cells...

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Abstract

The invention discloses a method and a system for video coding in visual phones in mobile terminals, and a mobile terminal. The method comprises: calculating the bit error rate of video data currentlyreceived; determining the coding-quality level of the video data currently received according to the bit error rate, wherein the bit error rate is in inverse proportion to the coding-quality level; and coding the video data currently received according to the coding-quality level. The method can also determine the coding-quality level of the video data according to current network-signal state inorder to perform coding, wherein the network-signal state is proportional to the coding-quality level. The method controls the coding of the video data according to the bit error rate and/or the network-signal state which are the main factors causing drop call, and different bit error rates and/or network-signal states correspond to different coding-quality levels, while different coding-qualitylevels correspond to different amount of coded data. Therefore, the method greatly reduces the drop-call rate of visual phones so as to guarantee the normal communication and service experience of thevisual phones.

Description

technical field [0001] The present invention relates to mobile communication electronic technology, in particular to a video coding method, system and mobile terminal of a video phone in a mobile terminal. Background technique [0002] With the popularization and development of 3G (Third Generation, third-generation mobile communication technology) technology, as an important business of 3G, videophone is increasingly accepted and loved by consumers. Videophone is a multimedia communication service that integrates image and voice. It can realize the effect of face-to-face real-time communication between people, that is, both parties on the call can see each other's images and surrounding environment during the call, which fully meets the needs of people when they are talking. Hearing his voice and seeing his wishes. However, due to the complexity of the actual wireless network, the videophone often has the phenomenon of call drop, that is, the abnormal communication interru...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/24H04N7/14
Inventor 平玉财
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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