Method and apparatus for this for allocating uplink resources in a wireless communication system

The present invention relates to a wireless communications system. More specifically, the present invention relates to a method and device for assigning each uplink resource in a wireless communication system, the method comprising: the second eNB by the first eNB, the first eNB and the second by the first eNB, receives the buffer size (buffer size) information from the terminal; of transmitting uplink resource allocation information for terminals that are connected to all the eNB and by the first eNB, assigning one or more uplink resources by considering all the buffer size information and the uplink resource allocation information; wherein, the uplink resource allocation information, the ratio of the buffer size to be considered in each eNB it is possible to instruct.