Reliable 4G/5G coverage for railways, metro stations, tunnels and transport corridors
Railway and tunnel coverage must handle high-speed mobility, continuous handover and long linear coverage. At 350 km/h, Doppler shift can reach around 1.4 kHz at 2.1 GHz, which may degrade demodulation performance and make stable 4G/5G coverage more challenging.
PROSE combines active DAS, HPRU/LPRU remote units, leaky cable, distributed antennas and hybrid fiber + RF architecture. DAS is used for stations and platforms, while leaky cable is preferred for tunnels where more uniform linear coverage is required.
Customers can improve passenger connectivity, maintain more consistent tunnel coverage, reduce handover risk, support public safety communication, and enable multi-operator 4G/5G service across railway and metro environments.
Railway Line Coverage: The solution uses high-gain directional antennas, optimized antenna placement, frequency planning and cell-merging strategy to improve continuous 4G/5G coverage along the railway line, reduce interference, and minimize handover impact for fast-moving trains. For curved sections, antenna position and beam direction can be further optimized to reduce weak-signal areas and Doppler-related performance degradation.


Station and Platform Coverage: The solution focuses on multi-zone capacity and passenger experience across station halls, platforms, transfer corridors, entrances and exits, retail areas, equipment rooms, and underground spaces, where passenger density, coverage layout, and capacity demand vary significantly.


A unified indoor solution enabling multi-operator, multi-band connectivity—maximizing efficiency while simplifying network deployment.

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