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A dynamic allocation method and device of channel resource

A technology of channel resource and dynamic allocation, applied in image communication, selective content distribution, communication between multiple stations, etc., can solve problems such as inaccurate channel allocation, avoid mosaic or hysteresis phenomenon, accurate channel allocation, The effect of improving the wireless communication environment

Active Publication Date: 2010-04-14
LENOVO (BEIJING) LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for dynamically allocating channel resources to solve the problem of inaccurate channel allocation in the prior art due to prediction errors or errors

Method used

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  • A dynamic allocation method and device of channel resource
  • A dynamic allocation method and device of channel resource
  • A dynamic allocation method and device of channel resource

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Embodiment Construction

[0027] figure 2 It is a block diagram of a dynamic channel resource allocation device provided by the present invention. As shown in the figure, the present invention includes a general video image module 201, a video compression module 202, a video stream module 203, and a data transmission module 204, as well as The prior art is different: a characteristic part calculation module 211, a time sequence estimation module 212, and a channel allocation module 213. The characteristic part calculation module 211 is used to select characteristic parts of the video frame and calculate the characteristic quantity correlation coefficient of the characteristic part; the time series estimation module 212 is used to perform characteristic quantity correlation according to the characteristic quantity correlation coefficient of the continuous video frame The change of the coefficient in the time series is estimated to obtain the change trend of the video picture in a future time period; the ...

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Abstract

The invention discloses a dynamic allocation method and a device of channel resource, wherein, the method includes: step 1, select the characteristic part of video picture frames and calculate the characteristic quantity related coefficient of the characteristic part; step 2, estimate the variation of the characteristic quantity related coefficient on a time series, obtain a variation trend of a video picture in a future time period according to the characteristic quantity related coefficient of the continuous video picture frames and adjust the channel resources according to the variation trend. The invention utilizes the relevancy among the video picture frames to dynamically adjust the channel bandwidth and can reduce prediction error and allocate channel more correctly. The invention adopts the prediction method of parallel processing with the video compression process and avoids the time delay caused by prediction and channel allocation.

Description

Technical field [0001] The present invention relates to a channel resource allocation technology for video communication, in particular to a method and device for dynamic allocation of channel resources. Background technique [0002] In wireless or wired communication, sufficient channel resources are the basic requirement to ensure normal communication. In the case of multiple users sharing the channel, it is extremely important to make full and effective use of the limited channel resources. Especially for video communication, under the premise of a fixed total channel resource, due to the large amount of video signal data, in order to ensure If the video signal of each user can be transmitted normally, the limited channel resources must be allocated reasonably, which puts forward higher requirements for the channel resource allocation of video communication. [0003] At present, in order to allocate channel resources reasonably, there have been many dynamic channel allocation m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04N7/173H04N7/18H04B7/26H04N21/266
Inventor 任俊
Owner LENOVO (BEIJING) LTD
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