Resource allocation method based on client side video play status in LTE system
A technology for video playback and resource allocation, 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: 2014-08-13
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 with reference to 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 state under an LTE system, comprising the following steps:
[0061] Step 1: Initialize system parameters;
[0062] see image 3 , the system includes two parts: client and base station. At the MAC (Media Access Control, media intervention control) layer of the base station, each user has a buffer queue (ie, a sending queue), and the buffer queue stores the video packets that need to be transmitted to the user in turn. There is a waiting time, that is, the time elapsed after the video package arrives in the queue; on the client side, each user has a video playback buffer, and the video playback buffer stores the frames that the user has received but have not yet played. One frame, delete the corresponding frame in the...
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The invention provides a resource allocation method based on the client side video play status in an LTE system. The method comprises the steps that the frame number, the number of cache frames, blocking time and CQI of a video frame, fed back by users, played at the current moment are obtained; urgency of video packets is calculated; whether the urgency of all the video packets is larger than an urgency threshold value or not is judged; if yes, the video packet with the largest fairness factor is selected for transmission; if not, the most urgent video packet is selected for transmission; according to the CQI information fed back by the users, RBs with the largest CQI are sequentially selected to be allocated to the video packet which is selected to be transmitted until the total transmittability of the allocated RBs is larger than the total capacity of the transmitted video packet; for the video transmission problem in the LTE system, the play status and network status of each user are taken into consideration comprehensively, and the experience level of the users and the whole performance of the system can be improved.
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 The MIMO technology improves the transmission capability of the system and reduces the transmission delay of the system. However, due to the time-varying and limited system resources of the wireless sys...
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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