| 摘要 |
PURPOSE: To prevent the collission between radio sections due to transmission from a hidden terminal and to improve communication efficiency. CONSTITUTION: A base station terminal 2 transmits a beacon from a radio transmission/reception part 27 by the control of a control part 26 whenever a timer part 24 counts prescribed time. When a radio transmission/reception part 16 in a radio terminal 1 receives the beacon, a received radio level measuring part 11 measures the level of the beacon. When a control part 15 judges that a self station is installed in a hidden terminal area based on a measured result, that the self terminal is installed in the hidden terminal area is reported to a base station terminal 2 from the radio transmission/ reception part 16. An access system switching part 14 is controlled and data communication is executed with the base station terminal 2 by the control of a TDMA system control part 13. When the base station terminal 2 receives a notice from the radio terminal 1, it registers a notified content to a hidden terminal registration part 25 and informs the radio terminal 1 of the completion of registration by the control of a TDMA system control part 22. |
