To provide a radio communication system for making a time required for fare adjustment processing to be performed through radio communication between portable terminal equipment which supplies a power source to a mounted memory card only when necessary and a server device shorter as compared with the conventional manner.
This radio communication system is configured of portable terminal equipment on which the memory card is mounted and a server device for transmitting/receiving information through radio communication via the portable terminal equipment between the server device and the memory card. The portable terminal equipment receives a communication start request from the server device, and makes the memory card into an operable state, and communicates with the server device to execute communication preparation processing between the server device and the memory card. When the memory card is made into the operable state, the memory card performs start processing, and after completing the start processing, the memory card transmits/receives information via the portable terminal equipment to/from the server device.
OMORI MOTOJI
NISHIKAWA HIROSHI
