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LTE系统中一种利用DRX降低UE功耗的视频流调度方法

  • 田建军 ,
  • 邱玲
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  • 中国科学技术大学电子工程与信息科学系个人通信与扩频实验室, 合肥 230027

收稿日期: 2011-04-07

  修回日期: 2011-05-16

  网络出版日期: 2012-07-15

基金资助

国家科技重大专项(2010ZX03002-003)资助

UE power saving scheduling method using DRX for video streaming in LTE

  • TIAN Jian-Jun ,
  • QIU Ling
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  • PCN&SS Lab, Dept EEIS, University of Science and Technology of China, Hefei 230027, China

Received date: 2011-04-07

  Revised date: 2011-05-16

  Online published: 2012-07-15

摘要

提出一种利用DRX(discontinuous reception)降低UE(user equipment)功耗的视频流调度方法,该方法在保证数据包时延要求的同时,减少了InactivityTimer的开启次数,增加了UE的休眠时间. 仿真结果表明,相比已有的DRX机制下的实时业务调度方法,该方法可以在丢包率相同的情况下,显著降低UE的功耗.

本文引用格式

田建军 , 邱玲 . LTE系统中一种利用DRX降低UE功耗的视频流调度方法[J]. 中国科学院大学学报, 2012 , 29(4) : 518 -523 . DOI: 10.7523/j.issn.2095-6134.2012.4.013

Abstract

A scheduling method for saving UE's power by using DRX for the video streaming is proposed in this paper. The times of starting/restarting I-Timer can be reduced while the delay requirement of a packet is guaranteed, which increases the sleeping time of a UE. Simulation results show that this method can significantly reduce the power consumption of a UE with the same packet loss rate.

参考文献

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