Patent ID: 8837495

Claim:
A mobile communication system comprising a plurality of mobile stations, a relay node, and a radio base station, wherein from among a plurality of first radio bearers set between the plurality of mobile stations and the relay node, by managing user equipment (UE) context, each of first radio bearers for a predetermined QoS set for different mobile stations is configured to be mapped, by a mapping processing unit of the relay node, to a second radio bearer for the predetermined QoS set between the relay node and the radio base station, and the relay node comprises a priority control processing unit configured to perform a priority control process for a multiplexing process to the second radio bearer for the predetermined QoS of uplink user data, which has been received via each of the first radio bearers for the predetermined QoS, based on a priority assigned to each of the first radio bearers for the predetermined QoS, wherein, from among a plurality of bearers set between the radio base station and a gateway device, each of bearers for a predetermined QoS set for different mobile stations is configured to be mapped to the second radio bearer for the redetermined QoS, and the gateway device comprises a priority control processing unit configured to perform a priority control process for a transmission process of downlink user data, which has been received via each of the bearers for the predetermined QoS, based on a priority assigned to each of the bearers for the predetermined QoS.