一种基于无线TCP时延的互联网业务问题定界和优化方法  

A method of internet service problem demarcation and optimization based on wireless TCP delay

作　　者：李正勇 LI Zheng-yong(China Mobile Group Hainan Co.,Ltd.,Haikou 570125,China)

机构地区：[1]中国移动通信集团海南有限公司,海口570125

出　　处：《电信工程技术与标准化》2021年第5期38-44,共7页Telecom Engineering Technics and Standardization

摘　　要：为提升用户互联网业务感知,本文提出了一种基于TCP建立时延的跨层优化方法,将TCP建立时延拆解为无线TCP时延与核心TCP时延两个独立过程。以某省TCP业务为样本,通过多项式回归算法得到无线TCP时延与用户数的关系,论证了在用户数小于200个且网络性能稳定时,无线TCP时延与等待调度时间强相关、与业务类型无关。通过定量分析、建模仿真和实际验证,确定了无线TCP时延在无线资源管理机制下的SR调度数据量、DRX InactiveTimer和IBLER的最优配置策略,具有较高的实践价值。In order to improve the perception of Internet services,this paper proposes a cross-layer optimization method based on TCP.And the TCP establishment delay is divided into two independent processes:wireless TCP delay and core TCP delay.Taking TCP service in a province as a sample,the function relationship between wireless TCP delay and number of users is obtained by polynomial regression algorithm.It is proved that when the number of users is less than 200 and the network performance is stable,the wireless TCP delay is strongly related to waiting schedule time and is not related to the business type.By quantitative analysis,modeling simulation and experimental verification,the paper realizes the optimal allocation strategy of wireless TCP delay is given under the wireless resource management mechanism of the SR scheduling data quantity,DRX InactiveTimer and IBLER.The conclusion has high practical value.

关 键 词：TCP时延 跨层优化 调度请求 不连续接收 混合自动重传 

分 类 号：TN929.5[电子电信—通信与信息系统]