APPARATUS AND METHOD OF MOBILE SATELLITE COMMUNICATION COMPRISED COMPLEMENTARY TERRESTRIAL COMPONENT APPLIED FRACTIONAL FREQUENCY REUSE TECHNIQUE

摘要

PURPOSE: A mobile satellite communications apparatus and a method thereof are provided, which maximizes frequency use efficiency. CONSTITUTION: If data are received from a mobile terminal, a satellite signal sensing part(421) senses a satellite signal. A subcarrier deciding unit(423) recognizes a subcarrier group used for communications between a mobile terminal and a satellite using a satellite signal. A communications unit(425) communicates with the mobile terminal using subcarrier groups except for the subcarrier group. If the ground auxiliary device locates in the central area of a beam, the subcarrier deciding unit recognizes the first subcarrier group used in communications between the satellite locating in the border of the beam and the mobile terminal.