2.6 GHz下的5G NR覆盖能力分析

doi:10.11959/j.issn.1000-0801.2019181

Abstract

Abstract:

The current research on 5G new air interface is mainly concentrated in the middle and high frequency bands.The low frequency band re-cultivation used by 4G is of great significance for 5G-scale contiguous networking,but there are few studies.On the basis of discussing the factors affecting the radio transmission capability,the urban outdoor non-line-of-sight propagation model of 3GPP TR38.901 was selected,and the current mainstream air interface parameters were used to simulate the multi-system main physical channel propagation capability.By comparing the coverage capabilities of the same physical channels in the 4G and 5G NR bands,the 5G NR primary channel coverage capability in the 2.6 GHz band can achieve contiguous coverage on the existing 4G basis.

Key words: 5G NR, 2.6 GHz, wireless link budget, coverage ability, performance evaluation

CLC Number:

TN929.5

Xinkai CUI,Hao LI,Xiangchuan GAO,Huan YANG. Analysis of 5G NR coverage capability at 2.6 GHz[J]. Telecommunications Science, 2019, 35(8): 104-110.

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NR频段号	上行频段基站接收/UE发射	下行频段基站发射/UE接收	双工方式
n38	2 570~2 620 MHz	2 570~2 620 MHz	TDD
n77	3 300~4 200 MHz	3 300~4 200 MHz	TDD
n78	3 300~3 800 MHz	3 300~3 800 MHz	TDD
n79	4 400~5 000 MHz	4 400~5 000 MHz	TDD

NR频段号	上行频段基站接收/发射	下行频段基站发射/UE接收	双工方式
n257	26 500~29 500 MHz	26 500~29 500 MHz	TDD
n258	24 250~27 500 MHz	24 250~27 500 MHz	TDD
n260	37 000~40 000 MHz	37 000~40 000 MHz	TDD
n261	27 500~28 350 MHz	27 500~28 350 MHz	TDD

	1.8 GHz LTE FDD	1.9 GHz LTE TDD	2.6 GHz NR 128TRx	2.6 GHz NR 192TRx	3.5 GHz NR 192TRx	4.9 GHz NR 192TRx
天线增益/dB	17	16	15	16	16	16
阴影衰落/dB	8	8	8	8	9	9
干扰余量/dB	10/5	10/5	8/3	8/3	8/3	8/3
穿透损耗/dB	13	13	16	16	19	22
系统天线	4T4R	8T8R	64T64R	64T64R	64T64R	64T64R
系统功率/W	40	40	200	200	200	200
终端天线	1T2R	1T2R	2T4R	2T4R	2T4R	2T4R
终端功率/dBm	23	23	26	26	26	26
噪声系数/dB	7/3.5	7/4	7/4	7/4	7/4.5	7/5

Analysis of 5G NR coverage capability at 2.6 GHz

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