Patent ID: 8743722

Claim:
A radio terminal comprising: a communication unit configured to perform radio communication by selecting any of a Code Division Multiple Access (CDMA) scheme and an Orthogonal Frequency Division Multiplexing (OFDM) scheme as a used communication scheme to be used in a cell formed by a radio base station; a first measurement unit configured to measure reception quality related to a time difference between a preceding wave and a delayed wave of a reception signal of the OFDM scheme; a second measurement unit configured to measure reception quality of a reception signal of the CDMA scheme; and a control unit configured to cause the second measurement unit to measure the reception quality of the reception signal of the CDMA scheme when the OFDM scheme is selected as the used communication scheme in an idle state and when the reception quality related to the time difference obtained by the first measurement unit is lowered to less than a threshold corresponding to a guard interval used in the OFDM scheme.