Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 38
Aircraft Equipment Problem Less Severe
Aircraft Equipment Problem Dissipated
Aircraft; Environment - Non Weather Related
While on the LAWGR3 STAR into DEN; we heard two other aircraft report loss of GPS signal.  Then approximately after YUPEE we lost both of our GPS signals.  Our navigation accuracy slowly degraded; to the point we lost terrain displays while in IMC; which is a little concerning near the Rockies.  We regained the GPS signals outside and perpendicular to the DORRY waypoint on the ILS.  By that short time our RNP accuracy degraded from 0.03 to 0.31.  After regaining GPS coverage outside DORRY it quickly came back to 0.03 accuracy.  When cleared for the approach and inside of DORRY the GPS signal dropped again; but since we were established on the ILS was not a big concern.  Had we been on the RNP we would have been unable to accomplish the approach.  We heard another type aircraft report another anomaly and are guessing that this is a 5G interference issue; but not sure.
Air carrier First Officer reported loss of GPS signal on arrival into DEN; possibly related to 5G interference.