A mobile communication terminal apparatus comprising: first wireless communication means for transmitting and receiving a first radio signal; second wireless communication means for transmitting and receiving a second radio signal to and from, respectively, a second wireless communication base station; first position information generation means for generating, based on the first radio signal received by said first wireless communication means, first position information representing a position where the first radio signal is received; second position information generation means for generating, as second position information representing a position where wireless communication is possible between said second wireless communication means and the second wireless communication base station, the first position information generated by said first position information generation unit when said second wireless communication unit is transmitting or receiving the second radio signal, said second position information generation means being further configured to store the second position information in a storage unit; wireless communication operation determination means for determining, based on whether the first position information, generated by said first position generation unit, matches with the second position information, stored in the storage unit, whether a wireless communication operation by said second wireless communication means is possible; and power supply control means for performing power supply control of said second wireless communication means in accordance with a determination result of said wireless communication operation determination means, wherein said wireless communication operation determination means is configured to determine whether the wireless communication operation by said second wireless communication means is possible by comparing activation time information that defines an activation time of said second wireless communication means with current time information, and wherein storage means is configured to store the second position information and the activation time information in association with each other. first wireless communication means for transmitting and receiving a first radio signal; second wireless communication means for transmitting and receiving a second radio signal to and from, respectively, a second wireless communication base station; first position information generation means for generating, based on the first radio signal received by said first wireless communication means, first position information representing a position where the first radio signal is received; second position information generation means for generating, as second position information representing a position where wireless communication is possible between said second wireless communication means and the second wireless communication base station, the first position information generated by said first position information generation unit when said second wireless communication unit is transmitting or receiving the second radio signal, said second position information generation means being further configured to store the second position information in a storage unit; wireless communication operation determination means for determining, based on whether the first position information, generated by said first position generation unit, matches with the second position information, stored in the storage unit, whether a wireless communication operation by said second wireless communication means is possible; and power supply control means for performing power supply control of said second wireless communication means in accordance with a determination result of said wireless communication operation determination means, wherein said wireless communication operation determination means is configured to determine whether the wireless communication operation by said second wireless communication means is possible by comparing activation time information that defines an activation time of said second wireless communication means with current time information, and wherein storage means is configured to store the second position information and the activation time information in association with each other.