What is GSM-R?

GSM-R stands for Global System for Mobile Communications-Railway, a digital communication system for railways:

  • Purpose

GSM-R is a secure, reliable, and mobile system that provides voice and data services for railway operations. It’s used by drivers and signallers to communicate with each other, and is a sub-system of the European Rail Traffic Management System (ERTMS).

  • Benefits

GSM-R improves safety, performance, and passenger experience. It also helps to create a more sustainable and digitally-enabled railway network.

  • Features

GSM-R offers a variety of features, including:

  • Functional Addressing: An alias system for calling someone registered on the GSM-R network

  • Location Dependent Addressing: A routing system for calling the most appropriate controller based on the train’s current position

  • Shunting Mode: A mode for when users are working on the tracks

  • Performance

GSM-R is designed to perform at speeds up to 500 km/h (310 mph) without any communication loss. However, its maximum transmission rate is only 9.6 kbit/s, which is too low for real-time applications or emergency communication.

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