Radio terminal device, radio base station device, radio ranging system, and ratio ranging method

摘要: Disclosed are a radio terminal device and the like, which achieve an improvement in accuracy of ranging between UWB reader tag regardless whether active method or semi-passive method. In (300), timing control unit (340) outputs, to transmission amplifier (350), signal for performing on-off such that on basis reception pulse transmitted from base station (200) representative value circuit delay time required when is received until generated response detection transmitted, (350) amplifies reradiation (200); re-reradiation pulse.