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Video transmission code rate self-adaption method and video transmission code rate self-adaption device based on LTE (Long Term Evolution)

A video transmission and self-adaptive technology, which is applied in closed-circuit television systems and other directions, to achieve the effect of large changes in wireless channel bandwidth

Inactive Publication Date: 2016-01-27
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to meet the requirements of video transmission and effectively use the transmission network bandwidth under the complex application situation of real-time video wireless transmission with dynamic changes in concurrent numbers and wireless bandwidth fluctuations

Method used

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  • Video transmission code rate self-adaption method and video transmission code rate self-adaption device based on LTE (Long Term Evolution)
  • Video transmission code rate self-adaption method and video transmission code rate self-adaption device based on LTE (Long Term Evolution)
  • Video transmission code rate self-adaption method and video transmission code rate self-adaption device based on LTE (Long Term Evolution)

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Embodiment

[0088] The present invention is described below with a specific embodiment, but does not limit the protection scope of the present invention. refer to image 3 , the method includes the following steps:

[0089] Step 101, receive and store the address mapping table between the IMSI and the IP address of the imported target cell;

[0090] Step 102: Obtain the current bandwidth and currently activated user information in the target cell transmitted by the base stations eNB1 to eNBw (w is an integer not less than 1), where the currently activated user information includes: IMSI (that is, the list of IMSIs in the figure);

[0091] Step 103: look up the address mapping table according to the currently activated user information to obtain an IP address set corresponding to the currently activated user information;

[0092] Step 104: sending the IP address set to the video control center, and receiving the video monitoring channels and the current video transmission bit rate respe...

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Abstract

The invention discloses a video transmission code rate self-adaption method and a video transmission code rate self-adaption device based on LTE (Long Term Evolution), and relates to the technical field of wireless video monitoring. The method comprises the steps of S1, acquiring the current bandwidth and current activated user information in a target cell; S2, determining the total number of video monitoring paths according to the current activated user information; and S3, calculating the optimal video transmission code rate according to the current bandwidth and the total number of video monitoring paths, and adjusting the video transmission code rate of each video monitoring device in the target cell according to the optimal video transmission code rate. According to the invention, the optimal video transmission rate is calculated so as to carry out adjustment on the video transmission code rate of each video monitoring device, thereby not only being capable of meeting requirements of video transmission, but also being capable of effectively utilizing the wireless network bandwidth. The method and the device disclosed by the invention are applicable to LTE based wireless video remote monitoring, and are particularly applicable to application scenarios such as subways, high-speed rails and the like where the real-time video transmission concurrence is great in fluctuation is great and the wireless channel bandwidth is high in variation.

Description

technical field [0001] The present invention relates to the technical field of wireless video monitoring, and in particular, to an LTE-based video transmission bit rate adaptive method and device. Background technique [0002] The high bandwidth advantage of Time Division Long Term Evolution (TD-LTE) breaks the contradiction between the mobility and definition of video surveillance, and enables the broad application of high-definition wireless video surveillance. When using TD-LTE wireless network for video surveillance, due to the limited bandwidth of the communication channel, it is necessary to control the video transmission bit rate to ensure smooth video transmission and full utilization of the channel bandwidth. The current research direction mainly focuses on video coding and compression technology and a small amount of congestion control technology based on bandwidth prediction. [0003] Great progress has been made in video coding and compression technology. H.264 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18
Inventor 龙智勇周玉成
Owner POTEVIO INFORMATION TECH
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