摘要
针对高铁LTE专网用户数量不断攀升、传统单F网络覆盖无法满足用户需求、高铁用户的速率感知变差的问题,提出从F+D双层组网、VoLTE语数分层、公网用户迁出、高铁用户迁回、高铁下行多普勒频移优化、高铁FDD融合组网等多方面联合对高铁LTE专网进行优化,对满足未来高铁用户群的业务增长需求、提升高铁用户群的LTE网络速率感知具有一定的借鉴与指导意义。
For the problems of constantly rising of high speed railway private network's users,traditional single F band is not able to satisfy user needs,and users'rate perception becomes worse,it proposes that high speed railway private network could be optimized by using F+D double networking,layering between VoLTE and data service,public network users moving out,private network users moving back,downlink doppler shift optimization and FDD blending networking and other aspects jointly.It is useful and instructive to satisfy the growing needs of future high-speed rail users and enhance the LTE network rate perception of high-speed rail users.
作者
赵洪伟
李玲
Zhao Hongwei;Li Ling(China Mobile Communications Group Hebei Co.,Ltd.Handan Branch,Handan 056000,China;School ofSoftware,Handan College,Handan 056000,China)
出处
《邮电设计技术》
2019年第3期46-51,共6页
Designing Techniques of Posts and Telecommunications
关键词
高铁
LTE
专网
多频组网
FDD
优化
High-speed railway
LTE network
Multi-band network
FDD
Optimization
