Patent ID: 8676252

Claim:
A dual mode terminal comprising: a first communication module configured to transceive a PS (packet switching) service signal with a first base station; a second communication module configured to transceive a CS (circuit switching) service signal with a second base station; a first antenna configured to transceive a signal with either the first base station or the second base station; and a second antenna configured to receive signals from the first base station and the second base station, wherein if an uplink transmission mode is a mode for simultaneous transmission to the first base station and the second base station, the first communication module determines whether a transmission power to the first base station is equal to or greater than a threshold value, wherein if the transmission power to the first base station is equal to or greater than the threshold value, the first communication module transmits a simultaneous transmission mode dedicated scheduling request signal for excluding a risky frequency band from an uplink band to the first base station, and wherein the first communication module receives scheduling information on the uplink band other than the risky frequency band from the first base station in response to the simultaneous transmission mode dedicated scheduling request signal.