Terminal device and wireless communication system that perform connection for communication

A wireless communication system comprising a terminal device and a base station device, wherein

• the terminal device includes:
• a transmitter that transmits a signal including type 1 identification information for indicating that a transmission destination is an unspecified base station device;
• a receiver that receives a signal from the base station device;
• an extractor that extracts, from the signal received by the receiver, type 2 identification information for identifying the base station device, the type 2 identification information being different from the type 1 identification information;
• and
• a measurer that measures a period of time after the extractor extracts the type 2 identification information, wherein
• when the type 2 identification information is extracted by the extractor, the transmitter transmits a signal including the type 2 identification information, and
• when the period of time measured by the measurer exceeds a threshold value, the transmitter transmits a signal including the type 1 identification information,
• the base station device includes:
• a receiver that receives a signal from the terminal device;
• an output circuit that outputs, when the signal received by the receiver includes the type 1 identification information or the type 2 identification information, the information included in the signal;
• and
• a transmitter that transmits a signal including the type 2 identification information.