| 摘要 |
An M-RN has a UE function unit for establishing an RRC connection with an eNB on a backhaul link, and an eNB function unit for establishing an RRC connection with a UE on an access link. In an RRC CONNECTED state in which an RRC connection with an eNB has been established, the UE function unit detects disconnection of the backhaul link. After detecting the disconnection of the backhaul link and before transitioning to an RRC IDLE state in which the RRC connection with the eNB is released, the UE function unit transitions to an RRC_SEMI-IDLE state in which it keeps the RRC connection with the eNB and tries a recover of the backhaul link. While the UE function unit is in the RRC_SEMI-IDLE state, the eNB function unit performs control in order to keep the RRC connection with the UE (300). |
