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1、 5G mmWave Deployment Best Practices November 2022 1.Executive Summary Mobile operators are deploying millimeter wave(mmWave)5G networks in crowded urban areas,such as sports arenas,stadiums,airports,concerts and other large venues.Operating at frequencies of 24 GHz and higher,these 5G Frequency Ran

2、ge 2(FR2)networks are able to deliver multi-gigabit data rates and very low latency 9.The mmWave bands offer a 10-fold increase in available contiguous bandwidth compared to sub-6 GHz 5G Frequency Range 1(FR1)bands.As a result,mmWave networks can handle a greater number of connections with greater p

3、eak individual data rates.This document looks at the technical mitigation strategies to improve the performance of 5G mmWave networks in both indoor or outdoor scenarios.1.1 Extending coverage As mmWave operate in high frequency bands,its propagation characteristics are different from those in low-b

4、and and mid-band(FR1)spectrum.In particular,radio signals in the mmWave bands are subject to higher free space loss and higher building penetration loss,among other losses 23.These losses can be mitigated by deploying antenna arrays.At mmWave frequencies,the wavelength is much smaller than tradition

5、al FR1 bands(thus the name millimeter wave).Due to the smaller wavelength,a larger number of antenna elements can fit into smaller antenna form factor and with the large number of antenna elements high gain and adjustable(narrow and wide)beamwidths can be achieved.The antenna arrays also allow for f

6、ast beam steering to improve radio link performance towards a particular area.In any mobile network,devices must maintain an adequate link budget on both the Downlink(DL)and Uplink(UL)for both control signalling and user data.When there is a link imbalance between UL and DL,the usable coverage will