| 摘要 |
PROBLEM TO BE SOLVED: To monitor the interference state of respective subscriber stations at a base station by providing a subscriber station communication device with an interference detection part with detects the reception intensity of a frequency component adjacent to the frequency that the device uses and sending interference information detected by the interference detection part to the base station. SOLUTION: A reception part 17 whose output and is connected to an interface processing part 11 transmits a receive signals 12 obtained by demodulating a receive wave 9. The reception part 17 is connected to the interference detection part 18 which detects the reception intensity of a frequency component adjacent to the frequency that the reception part uses and outputs a received wave 19 after frequency conversion. An interface process part 11 coverts a signal from a subscriber terminal device and outputs a transmitting signal 14. The interference detection part 18 detects the reception intensity of the adjacent frequency component from the received wave 19 after frequency conversion and sends interference information 21. A transmission part 20 modulates the interference information 21 together with the transmitting signal 14 and sends the resulting signal as a transmitting wave 15 to a receiving and transmitting antenna. The interface process part 11 sends and receives a terminal signal 16 to and from the subscriber terminal device. |
