Trials of 60 GHz Radio for a Future 5G New Radio (NR) Solution for High Capacity CCTV Offload and Multimedia Transfer This paper studies the radio interface performance of a 60 GHz radio in both indoor and outdoor conditions. The target is to assess its suitability for resolving emerging needs in the public transport, especially, in rail traffic, to transfer large amounts of data from vehicles to the stations and vice versa, during a short period of time. 60 GHz could also be ideal band for the wireless intercarriage connection between the railcars. The related services and requirements are defined in the 5G specification Mobile Communication System for Railways TS22.289. 60 GHz band is also included in the 5G standard as an unlicensed band.

Optimization of MultiBasestation Codebook Beamforming for mmWave Connections to High Speed Trains The exploration of mmWave technology for future public broadband communications is set to mitigate congestion in the lower spectra bands and is poised to provide multiGigabit radio access to urban users, as well as road and rail passengers. However, due to the unique and challenging propagation characteristics experienced in the mmWave bands, and particularity those in rail environments, a large number of trackside Base Stations (BSs) may be required to provide continuous coverage. This paper uses advanced simulation techniques to quantify the minimum number of required trackside BSs, and hence to minimise the capital and operational costs of the network. Our simulation results are supported by realworld tracktotrain measurements captured on the UK test track. By combining detailed 3D geographic databases with mmWave propagation models and accurate simulations of the beamforming antenna arrays and mmWave data modems we present an analysis of the theoretic coverage along a 1.9km section of UK rail track. Simulated data rates are presented for each of the 36 potential trackside sites. All studies are performed using a carrier frequency of 60 GHz. The beamforming codebooks used in this work were taken from the mmWave modems used in the rail trials. The codebook choices at the trackside and ontrain modems were optimally selected to minimise the number of required BS. Statistical analysis is provided for two different Effective Isotropic Radiated Powers (EIRP). For the higher EIRP level (60dBm), results show that an interBS spacing of just under 1000m is viable. This allows Gigabit data rates to be delivered along the entire 1.9km test track using just two trackside mmWave BSs.