Methods and systems for achieving vital ultra-wideband (uwb) based train control

A system for achieving train control vitality, the system comprising:

• a train-mounted device configured for use within a train to achieve train control vitality, the train-mounted device comprising:
• at least two independent ranging radios, each ranging radio comprising one or more antennas configured for transmitting and/or receiving wireless signals;
• and
• circuitry configured to at least process signals transmitted and/or received via the at least two independent ranging radios;
• wherein the at least two independent ranging radios and the circuitry are configured to maintain isolation during communication of signals, and wherein maintaining isolation comprises:
• use of diversity for maintaining isolation during communication of signals with at least one wayside unit, and
• use of one or more techniques and/or measures for maintaining channel isolation during communication of signals with the at least one wayside unit, the one or more techniques and/or measures comprising use of separate channels differentiated by a pseudo-random pulse interval sequence to allow the at least two independent ranging radios to operate in a same frequency band, and
• wherein the train-mounted device is configured to, during operation of the train within a railway network:
• communicate with any wayside unit that comes within communication range of the train-mounted device;
• process the communicated signals;
• and
• generate based on the processed communicated signals, at least two separate and independent data measurements, corresponding to communication via the at least two independent ranging radios.

A system for achieving train control vitality, the system comprising:

• a wayside device configured for deployment on or near tracks within a railway network for supporting achieving train control vitality, the wayside device comprising:
• at least two independent ranging radios, each ranging radio comprising one or more antennas, configured for transmitting and/or receiving wireless signals;
• and
• circuitry configured to control operations of the wayside device, wherein the circuity is configured to at least process signals transmitted and/or received via the at least two independent ranging radios;
• wherein the at least two independent ranging radios and the circuitry are configured to maintain isolation during communication of signals, and wherein maintaining isolation comprises:
• use of spatial diversity for maintaining isolation during communication of signals with at least one wayside unit, and
• use of one or more techniques and/or measures for maintaining channel isolation during communication of signals with the at least one wayside unit, the one or more techniques and/or measures comprising use of separate channels differentiated by a pseudo-random pulse interval sequence to allow the at least two independent ranging radios to operate in a same frequency band, and
• wherein the wayside device is configured to communicate with any train-mounted unit, configured for use within a train to support achieving train control vitality, when the train-mounted unit comes within communication range of the wayside unit.