Base station and method for allocating control channel in the same

Disclosed are a base station apparatus and a control channel allocation method of the apparatus. The apparatus includes: a resource allocation unit which allocates control channel resources for data transmission regarding a terminal; and an allocation adjusting unit which allocates the control channel resources to a terminal with a large amount of data to transmit on the preferential basis regarding the terminals which have overlapping control channel resources allocated from the resource allocation unit. [Reference numerals] (AA) Start; (BB,EE,FF) No; (CC,DD,GG) Yes; (HH) End; (S100) Allocate resources on a terminal; (S110) Is it overlapped?; (S120) Does it exceed to a packet delay boundary?; (S130) Allocate a PDCCH resource first to the terminal; (S140) Uplink?; (S150) Obtain information on a terminal buffer size; (S160) Allocate the PDCCH resource first to the terminal with a large amount of data to transmit; (S170) Obtain base station buffer size information