| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radio communication system capable of avoiding communication performance degradation caused by inter-symbol interference, when a radio terminal supporting both a CDMA system and an OFDM system is used.SOLUTION: A radio terminal 100, connected to a radio base station 200 supporting an OFDM system, measures a reception parameter representing time difference between a preceding wave and a delay wave of the OFDM system reception signal, measures RSSI of a CDMA system reception signal, and transmits the reception parameter and RSSI to the radio base station 200. The radio base station 200 receives the reception parameter and the RSSI from the radio terminal 100, and transmits a handover command to a radio base station 300 supporting the CDMA system if a value corresponding to the reception parameter exceeds a threshold value defined based on a guard interval, and the RSSI shows a good condition.</p> |
