Patent ID: 8274990

Claim:
A method for transmitting downlink data using resource blocks at a base station in a wireless mobile communication system, the method comprising: transmitting downlink data mapped to physical resource blocks (PRBs) to a user equipment, wherein: indexes of virtual resource blocks (VRBs) are mapped to indexes of the PRBs for each of N s slots of a subframe, N s denoting a number of slots included in the subframe, indexes of the PRBs for an odd-numbered slot are shifted with respect to indexes of the PRBs for an even-numbered slot based on a predetermined gap, and an index of one of the PRBs on each of the N s slots that are mapped to an index of one of the VRBs is determined by using N gap and N DVRB where N gap is a value of the predetermined gap and N DVRB is a number of the VRBs.