COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, AND FREQUENCY ALLOCATION METHOD

摘要

A communication system in which a base station selects any one of a continuous allocation scheme of allocating frequency bands continuously and a discrete allocation scheme of allocating frequency bands discretely and performs allocation of frequency bands to a user terminal. If the discrete allocation scheme is selected, the base station divides the frequency bands to be allocated into sub blocks on the basis of predetermined discrete allocation information for imposing a constraint on a discrete allocation state, and generates a control signal on the basis of the discrete allocation information (S12, S13), the control signal being intended to notify a result of allocation where arrangement on a frequency axis is determined in units of sub blocks. The user terminal determines the frequency bands allocated to the own terminal on the basis of the discrete allocation information retained and a control signal received from the base station.