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基于时延的动态非连续接收周期调整机制 被引量：3

A delay based dynamic discontinuous reception cycle adjusting scheme
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摘要 针对LTE系统的下行非连续接收(DRX)机制,提出了一种基于业务时延要求的动态非连续接收周期配置算法.首先网络侧按照正常的非连续接收机制对终端侧进行节能配置,然后利用实时的时延大小对非连续接收周期进行动态控制.数值分析表明,业务时延与网络负载有密切的关系,用户DRX周期配置需要与网络当前负载相结合;仿真结果表明,基于时延的动态周期调整机制,能够即时的适应网络状况以及自身需求的变化,与固定非连续接收周期相比,在用户满意度以及节能性上都有更好的表现. A novel dynamic configuration scheme for discontinuous reception （DRX） cycle based on the delay requirement of service is proposed for the LTE downlink system. First, the eNB configures the UEs with the power saving mechanism according to the DRX specifications. Then, the delay parameters are used to control the DRX cycle dynamically. Numerical analysis shows that, there is a close relationship between service delay and network load. Therefore, the configuration of the DRX cycle should be combined with the current network load. Simulation results show that the delay based dynamic cycle adjusting mechanism can adapt to the current network situation as well as their own requirements. Compared with the DRX mechanism with a fixed cycle, the performance of the proposed scheme has a great improvement in terms of user satisfaction and power efficiency.
作者 黄波 田辉 徐海博
机构地区 北京邮电大学泛网无线通信教育部重点实验室无线新技术研究所
出处 《中国科学技术大学学报》 CAS CSCD 北大核心 2009年第10期1107-1113,共7页 JUSTC
基金 中国高技术研究发展(863)计划(2009AA01Z262) 国家自然科学基金(60971125)资助
关键词 非连续接收(DRX) 时延要求 动态周期 discontinuous reception （DRX） delay requirement dynamic cycle
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献15

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二级参考文献3

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共引文献2

同被引文献36

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引证文献3

二级引证文献8

中国科学技术大学学报
2009年 第10期

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