Patent ID: 7826415

Claim:
A method for allocating, by a base station, a frequency resource to a user equipment (UE) in an orthogonal frequency division multiplexing (OFDM) mobile communication system, the method comprising the steps of receiving feedback information comprising at least mobility information from the UE; determining from the mobility information whether the UE belongs to a fast group or a slow group, allocating a frequency resource for the UE according to an open-loop solution if the UE belongs to the fast group, and allocating a frequency resource for the UE according to a closed-loop solution if the UE belongs to the slow group, determining a first frequency set indicating a frequency resource allocatable for the fast group in the full frequency band, and determining the remaining frequency resource except for the first frequency set as a second frequency set for indicating a frequency resource allocatable to the slow group; and transmitting data for the UE using the allocated frequency resource, wherein the mobility information represents one of a moving velocity and a Doppler value of the UE.