| 摘要 |
A relay station (2) carries out a data relay between a base station (1) and a mobile station (3-2), using a backhaul link (BL1) which is connected to the base station (1) and an access link (AL2) which is connected to the mobile station (3-2). A mobile communication system is configured such that, while operating a relay station cell (20) using the access link (AL2) via the relay station (2), it is possible to switch the frequency which the backhaul ink (BL1) uses. The switch of the frequency which the backhaul link (BL1) uses includes at least one of a switch from an in-band frequency which is the same as the frequency which the access link (AL2) uses to an out-band frequency which differs from the frequency which the access link (AL2) uses, and a switch from the out-band frequency to the in-band frequency. |
