WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION TERMINAL DEVICE, RELAY DEVICE, AND RELAY SYSTEM

摘要

Wireless terminal devices (TA) to (TH) detect whether channel information received from repeaters (1111) to (111n) indicates a busy condition or free condition; if a channel in a free condition is detected, the identification information of this channel is written in a RAM (23). The wireless terminal devices (TA) to (TH) select the identification information of one of the plurality of channels that is written in the RAM (23), and initiate a call to the channel with the selected identification information.