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Filtering method for processing signals from global system for mobile communication-railways network for railway system, involves placing processing module on part of downlink circuit for providing filtering signal of downlink
Filtering method for processing signals from global system for mobile communication-railways network for railway system, involves placing processing module on part of downlink circuit for providing filtering signal of downlink
The method involves interposing an electric filter circuit (100) between an antenna (200) and a communication station (300) of a mobile station of a global system for mobile communication-railways (GSM-R) network, where the circuit includes two duplexers (D200, D300) arranged between an uplink and a downlink. A processing module (140) e.g. digital filter, is placed on a part of a downlink circuit (120) for providing a filtering signal of the downlink, so as to obtain rejection band signals of adjacent frequencies. An independent claim is also included for a filtering circuit for processing signals from a (GSM-R) network for a railway system.
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