Abstract: A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.

Abstract: A resource allocation request method in a wireless system, including base stations and terminals, includes the steps of: periodically broadcasting resource information, managed by the base stations, to the terminals; receiving and storing the periodically-broadcast resource information in the terminals; making a determination, in response to a resource allocation request, by comparing the parameter value of a resource, extracted from the stored resource information, with a preset critical value when a terminal receives an application command corresponding to the resource allocation request from a user; and, variably requesting resource allocation of the base stations according to the determinations by the terminals in response to the resource allocation requests.