摘要
卫星通信与地面第5代移动通信(5G)融合能够充分结合地面移动网络高速大容量与卫星通信广域全覆盖的优势,为用户提供真正的全球无缝接入与高速传输。针对卫星通信场景的特性与地面5G技术深度融合的难点,提出了承载网融合-核心网融合-接入网融合的卫星通信与地面5G融合发展路线,分析了各阶段的融合网络架构,探讨了融合过程中面临的高速低时延承载网回传、移动性管理、统一空口接入等技术挑战,并相应提出了高通量卫星系统、核心网网元功能扩展、低峰均比多载波波形技术等突破途径。
The integration of satellite communications and ground 5G(the fifth generation of communications)takes advantage of both high data rate and wide coverage,providing seamless coverage high data rate service.The characteristics of satellite communications scenarios along with challeges of 5G technologies are focused on,and a three-stage development roadmap of integrated satellite communications and ground 5G is put forward,which starts from the bearer network integration,followed by core network integration and finally the access network integration.The network architecture,challenges as well as critical enbabling technologies under each stage are introduced.The technical approach to solve the integration challenges such as high throughput satcom,extension of core network and low peak to average power ratio waveform are proposed and analyzed.
作者
郑重
缪中宇
郑寒雨
蒲明龙
栾珊
陈特
丁睿
张伟
ZHENG Zhong;MIAO Zhongyu;ZHENG Hanyu;PU Minglong;LUAN Shan;CHEN Te;DING Rui;ZHANG Wei(Innovation Center of Satellite Communication System, Institute of Telecommunication and Navigation Satellites, China Academy of Space Technology, Beijing 100094, China)
出处
《航天器工程》
CSCD
北大核心
2021年第5期115-124,共10页
Spacecraft Engineering
基金
国家重点研发计划(2019YFB1803100)。
关键词
卫星通信
地面第5代移动通信
承载网融合
核心网融合
接入网融合
网络架构
satellite communications
ground 5G(the fifth generation of communications)
bearer network integration
core network integration
access network integration
network archtecture
