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Method of transmitting dual-mode wireless video

A wireless video and transmission method technology, applied in the direction of pulse modulation TV signal transmission, message/mailbox/notification, etc., can solve the problems of video frame rate increase, receiving asynchronous, etc., and achieve the effect of increasing video frame rate

Inactive Publication Date: 2011-03-16
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But at the same time, it also brings some problems: due to the different delay caused by the use of two different networks, which leads to the asynchronous reception, so the frame synchronization must be carried out at the receiving end in order to display the video frame correctly, resulting in limited speed improvement

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  • Method of transmitting dual-mode wireless video
  • Method of transmitting dual-mode wireless video

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Embodiment Construction

[0024] Taking the wireless video monitoring system as an example below, preferred embodiments of the present invention are described, the video data obtained by the imaging device of the wireless video monitoring system is transmitted to the monitoring center by the TD-SCDMA network and the CDMA20001X network dual-mode, and the camera at the monitoring point The device and communication device are used as the sending end, and the communication device and data processing device of the monitoring center are used as the receiving end. Let the transmission rate of the TD-SCDMA network be R T , the transmission rate of CDMA2000lX network is R C , R T :R C =n:1, such as figure 1 As shown, the dual-mode wireless video transmission method of the present embodiment includes the following steps:

[0025] S1: The sender sends the data packet sequence of the image frame M={D 1 ,D 2 ,D 3 …D N}According to the ratio of n:1, carry out the following divisions:

[0026] M={(D 1 ,D 2 ...

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Abstract

The invention provides a method of transmitting dual-mode wireless video, which can improve transmission effect of the dual-mode videos effectively. The objective of the invention is implemented in such a way: a method of transmitting dual-mode wireless video, a first communication module with a transmission speed of R[T] and a second communication module with a transmission speed of R[C] to transmit videos through mobile communication network, including following steps: S1, data package sequence of images frames are divided into a first data package sequence and a second data package sequencein a proportion of n / 1 alternately by the sending terminal, then the first data package sequence is transmitted by the first communication module, the second datapackage sequence is transmitter by the second communication module.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a video multi-mode transmission method in mobile communication. Background technique [0002] The traditional wireless video transmission currently adopted mainly performs single-mode transmission through the existing mobile communication network, such as wireless video transmission based on CDMA2000lx, wireless video transmission based on GPRS or wireless video transmission based on TD-SCDMA; but single-mode The sending rate of video transmission is limited, especially for GPRS and CDMA2000lx networks, the data transmission rate is low, which cannot meet the smooth video transmission requirements. [0003] The dual-mode wireless video transmission system uses two communication modules to transmit video through different communication networks, which makes up for the shortcomings of single-mode video transmission that cannot meet the smooth video transmission rate. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04W4/12
Inventor 田增山何维周非李潜杰张勤常国柱
Owner CHONGQING UNIV OF POSTS & TELECOMM