A radio communication apparatus for performing extended discontinuous reception (eDRX) to a network including a base station, the apparatus including a configuration configured to transmit a TAU Request, perform a transmission processing of the TAU Request, set an eDRX period included in the TAU Request to a first period and transmit the TAU Request when a probability of data reception after transmission of the TAU Request is low, set the eDRX period included in the TAU Request to a second period and transmit the TAU Request when the probability of data reception after transmission of the TAU Request is high, and the second period is longer than the first period.