基于TD-HSDPA系统DRX周期与VoIP性能的研究  

Research on DRX and VoIP Performance Based on TD-HSDPA System

作　　者：刘涛[1] 李方伟[1] 

机构地区：[1]重庆邮电大学移动通信安全研究所,重庆400065

出　　处：《电视技术》2013年第17期213-215,共3页Video Engineering

基　　金：国家自然科学基金项目(61071116);重庆市2010年自主创新和高技术产业发展项目(20091537)

摘　　要：针对终端省电问题,首先对承载VoIP业务的终端省电原理进行了介绍;基于上述省电方式,然后给出了基于TDHSDPA系统不连续接收(DRX)周期和VoIP业务的建模和性能分析;最后对终端不同移动速度下DRX周期以及相关定时器对基于TD-HSDPA系统下终端的VoIP业务性能的影响和省电情况进行了仿真。研究表明,在快速移动时,较短的定时器会对VoIP的业务性能产生影响,长定时器会获得更多省电的机会,特别在单纯VoIP通信环境下,业务的运行性能可以通过使用较长的定时器来得到缓解。For terminal province electric problem, firstly terminal province electric principle carrying VoIP business is described based on above province electric ways. Secondly, the model of continuous receives （DRX） cycle and VoIP business based on TD-HSDPA system is built, and performance is also analyzed. Finally, for different moved speed, DRX cycle and related timer based on TD-HSDPA system effect VoIP business performance and province electric situation are done. Studies show that in fast-moving, short timers have an impact on business performance of VoIP, and long-timers get more energy saving opportunities, and in pure VoIP communication environments, business performance can be eased by using a longer timer.

关 键 词：VOIP 定时器 TD—HSDPA DRX 

分 类 号：TN929.5[电子电信—通信与信息系统]