| 主权项 |
1. A radio communication system comprising:
plural mobile stations; and a base station for wirelessly communicating with each of the plural mobile stations by using a resource block corresponding to a predetermined time period and to a frequency bandwidth, wherein the base station comprises:
a mobile station classifier that classifies each of the mobile stations into one of plural classes based on the reception quality from the base station;a resource block allocator that allocates resource blocks to the plural mobile stations so that a resource block used for transmission of a data signal component to a mobile station in a class is not commonly used as a resource block used for transmission of a data signal component to another mobile station belonging to the same class but is commonly used as a resource block used for transmission of a data signal component to another mobile station belonging to another class;a data signal component generator that generates plural data signal components to be transmitted to the plural mobile stations;a control signal generator that generates a control signal containing information indicating the allocation of the resource blocks by the resource block allocator to the plural mobile stations; anda transmitter that is an element that transmits the plural data signal components generated by the data signal component generator and the control signal generated by the control signal generator, the transmitter being configured to transmit the data signal components in accordance with the allocation of the resource blocks by the resource block allocator, a data signal component, from among the data signal components, being transmitted to a mobile station with an inferior reception quality from the base station with a greater transmission power, wherein each of the plural mobile stations comprises:
a receiver that receives a data signal for which the plural data signal components have been combined, the data signal being transmitted from the transmitter of the base station, and the control signal transmitted from the transmitter of the base station; anda data signal demodulator that, when the data signal received by the receiver of the mobile station includes a data signal component corresponding to a low-quality mobile station, the low-quality mobile station being a mobile station in a low-quality class that is a class for which the reception quality from the base station is inferior to a class to which the mobile station belongs, demodulates a data signal component corresponding to the mobile station after demodulating and cancelling the data signal component corresponding to the low-quality mobile station. |
