Cellular goes underground in Munich

While commonplace in Japan, cell phone coverage in metro tunnels remains scarce in Europe. But Vodafone has helped remedy this shortcoming by advising how coverage could be achieved using antennas and cellular amplifiers within the core network of Munich metro or subway system.

The company said that, having conducted extensive propagation tests, over 400 cellular antennas and around 100 amplifiers had been installed in approximately 75-kilometres of metro tunnel and in the 89 stations. The antennas are spaced between 300 metres and three kilometres apart depending on the RF conditions within each section of tunnel.

The underground system is connected using fibre optic links and managed by a central switching point. Voice and data calls are routed via this central switch to participating operators.

For more on this story:

Related stories:
3 selects repeaters to improve in-building 3G data coverage
3G coverage requirement pushes femtocell market
French high-speed trains to offer WiFi

Suggested Articles

Wireless operators can provide 5G services with spectrum bands both above and below 6 GHz—but that doesn't mean that all countries will let them.

Here are the stories we’re tracking today.

The 5G Mobile Network Architecture research project will implement two 5G use cases in real-world test beds.