Ptp definitions not updating
The short term solution is to avoid use the 4G frequencies near railways, which gives less mobile data capacity for passengers.
In Germany, Italy and France the GSM-R network has between 3,000 and 4,000 base stations.
GSM-R occupies a 4 MHz wide range of the E-GSM band (900 MHz-GSM): The DCS 1800 band has been divided and auctioned in paired parcels each of 2 × 2.5 MHz with duplex spacing of 95 MHz.
Railroads acquired six mostly non-grouped parcels which cover 2 × 15 MHz of this frequency band in which the GSM-R projects have been implemented.
In areas where the European Train Control System (ETCS) Level 2 or 3 is used, the train maintains a circuit switched digital modem connection to the train control centre at all times.
This modem operates with higher priority than normal users (e MLPP).