A mobile communication method according to the present invention includes the steps of: (A) notifying, from a first radio base station (MBS) to a second radio base station (FBS), scheduling information including information specifying a radio resource for a control channel through which a first mobile station (MUE) that is in communication in a first cell under the control of the first radio base station (MBS) transmits downlink control information or uplink control information, when the first radio base station (MBS) assigns the radio resource; and (B) assigning, at the second radio base station (FBS), a radio resource for a control channel through which a second mobile station that is in communication in a second cell under the control of the second radio base station (FBS) transmits downlink control information or uplink control information based on the scheduling information.