Resource allocation method based on client video playback status under lte system
A technology for resource allocation and video playback, which is applied in electrical components, wireless communication, wireless network protocols, etc., and can solve the problems of large number of video frames, increased number of playback interruptions and time.
Active Publication Date: 2017-10-20
南京舟渡信息科技有限公司
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However, because the resources of the wireless system are limited, if the resource scheduling does not consider the client's video playback status, but only considers the network status, the number of video frames in the client cache of users with better network status may be large, while the network Increased number and duration of playback interruptions for users with poor status
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[0059] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0060] see figure 1 as well as figure 2 , the present invention provides a resource allocation method based on client video playback status under an LTE system, comprising the following steps:
[0061] Step 1: Initialize system parameters;
[0062] see image 3 , the system includes two parts, the client side and the base station side. At the MAC (Media Access Control, Media Access Control) layer at the base station, each user has a cache queue (i.e., a sending queue), in which the video packets that need to be transmitted to the user are sequentially stored, and each video packet in the queue has A waiting time, that is, the time elapsed after the video packet arrives in the queue; on the client side, each user has a video playback cache, which stores the frames that the user has received but has not played in turn. frame, delete the correspond...
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The present invention provides a resource allocation method based on the video playback state of the client under the LTE system, and obtains the frame number, the number of cached frames, the time of interruption and the CQI of the video frame played at the current moment as fed back by the user; and then calculates the urgency of the video packet ; Judge whether the urgency of all video packets is greater than the urgency threshold, if they are all greater than the threshold, select the video packet with the largest fairness factor for transmission; if there are video packets with urgency less than the threshold, select the most urgent video packet for transmission; For the CQI information fed back by the user, the RB with the largest CQI is selected in turn to be allocated to the video packet selected for transmission until the total transmission capacity of the allocated RB is greater than the total size of the video packet to be transmitted; the present invention is aimed at the problem of video transmission in the LTE system, Comprehensive consideration of each user's playback status and network status can improve the user's experience level and the overall performance of the system.
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a resource allocation method based on the video playing state of a client under an LTE system. Background technique [0002] With the continuous development of mobile communication technology, the types of mobile communication services gradually evolve from pure voice and common data services to rich multimedia services, and the proportion of video services continues to increase. Due to the large amount of video service data, this requires the underlying network to provide higher communication rates and smaller transmission delays. LTE (Long Term Evolution, Long Term Evolution) proposed by 3GPP is a new generation of mobile communication networks that combines OFDM and MIMO technology, which improves the transmission capacity of the system and reduces the transmission delay of the system. However, due to the time-varying and limited system resources of the wireless sy...
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IPC IPC(8): H04W80/12H04W72/04
Inventor 陈歆刘贵忠
Owner 南京舟渡信息科技有限公司