Coverage scheme and characteristic parameters test verification of 5G NR2.1 for high-speed rail
With the increasing maturity of 5G network coverage and technical applications,enhancing the perception of 5G net-work in important scenarios is of great significance to improve the reputation of operators.In recent years,the three major operators have begun to deploy 5G networks in high-speed rail scenarios.For China Unicom and China Telecom,the NR3.5 network has difficul-ties such as high investment,difficult site selection and limited uplink coverage.As the 2.1GHz frequency is gradually refarming from 4G to 5G,the deployment of NR2.1 in high-speed rail scenarios can improve coverage and save investment compared with NR3.5,so as to realize the rapid deployment of high-speed rail 5G network.Firstly,the differences between NR2.1 and NR3.5 in terms of wear loss,Doppler frequency deviation,switching and NR2.1 equipment selection are introduced.Then,the link budget and site planning of NR2.1 in high-speed rail scenarios are analyzed.Finally,the associated parameters of high-speed rail characteristics are introduced and verified to provide site planning and technical solution support for the construction of NR2.1 in high-speed rail scenarios.
国家科技期刊平台
NSTL
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