摘要
从双工方式、频段分布、物理层信道结构、无线参数、多天线技术等方面对FDD 2.1G技术在5G中的技术方案进行论述。通过应用实例,从覆盖、速率等多个指标把2.1G FDD NR与3.5G TDD NR以及2.1G FDD LTE的性能进行比较和分析,论述2.1G FDD NR的优势与不足。研究了2.1G FDD NR和2.1G FDD LTE的频谱共享方案。该技术具有较好的技术指标和应用前景。
This paper studies how to apply 5G technologies to the existing 4 G spectrum.The technical solution of FDD 2.1 G technology in 5G is discussed in terms of the duplex mode,frequency band distribution,physical layer channel structure,wireless parameters and multi-antenna technology.Through the examples of practical applications,this paper analyzes and compares the performance of 2.1 G FDD NR,3.5G TDD NR and 2.1 G FDD LTE with multiple metrics such as coverage and rate,and the advantages and disadvantages of 2.1 G FDD NR are discussed.The spectrum sharing scheme between 2.1 G FDD NR and 2.1 G FDD LTE is studied,and it shows a good technical performance and application prospects.
作者
欧阳晖
OU Yanghui(Foshan Branch of China Telecom Co.,Ltd.,Foshan 528000,China)
出处
《移动通信》
2019年第12期10-15,共6页
Mobile Communications
关键词
NR
FDD
SSB
频谱共享
频率重耕
new radio
frequency division duplex
synchronization signal block
frequency-band sharing
frequency-band refarming
