SIGNAL PROCESSING UNIT, RADIO BASE STATION DEVICE, JUDGING METHOD OF FAULT STATE IN SIGNAL PROCESSING UNIT AND JUDGING METHOD OF FAULT STATE IN RADIO BASE STATION DEVICE

摘要

Signal processing units (4-i; i=1 to N) arranged in a radio base station device (1) receiving a radio signal from a radio terminal is provided with a plurality of reception processing parts (7-1 and 7-2) monitoring normality or abnormality of a result obtained by receiving the signal received from the radio terminal and a fault judgment control part (10) judging the fault state of the signal processing unit (4-i) based on a monitoring result in a plurality of the reception processing parts (7-1 and 7-2).