移动蜂窝网络中被动模式时延测量方法  

A DELAY MEASUREMENT METHOD FOR PASSIVE MODE IN MOBILE CELLULAR NETWORKS

作　　者：周紫阳[1] 魏松杰 

机构地区：[1]南京理工大学计算机科学与工程学院,江苏南京210094

出　　处：《计算机应用与软件》2017年第11期147-151,171,共6页Computer Applications and Software

基　　金：国家自然科学基金面上项目(61472189)

摘　　要：移动蜂窝网络与传统有线网络在时延模型上有较大的差异。基于移动蜂窝通信的特点,提出一种针对移动蜂窝网络的时延被动测量方法,依据通信链路中RRC(Radio Resource Control)的不同状态,将网络时延分为空闲态时延和连接态时延。通过对骨干网测量点的流量分析,计算出RRC不同状态下的数据往返时延并进行有效性判定,据此对各个终端到测量点之间的空闲态时延和连接态时延分别进行测量。与传统的测量技术相比,该方法对移动蜂窝网络的时延测量更加精确细致,过程对用户无影响,更具实际应用价值。实验结果表明,提出的方法有较高的测量效率和准确性。Mobile cellular network and traditional wired network have great difference in delay model. Based on the characteristics of mobile cellular communication, this paper proposes a delay passive measurement method for mobile cellular networks. According to different states of RRC （Radio Resource Control） in the communication link layer, the network delay was divided into idle state delay and connected state extension. By analyzing the traffic flow of the measurement points in the backbone network, we calculated the round-trip time delay of RRC in different states to determine the validity. We measured the idle state delay and the link state delay between the terminals and the measurement points. Compared with the traditional measurement technology, this method is more precise and detailed for the delay measurement of the mobile cellular network, which has no effect on the user and has more practical application value. Experimental results show that the proposed method has higher measurement efficiency and accuracy.

关 键 词：移动蜂窝网络 RRC 网络时延 被动测量 流量分析 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]