RADIO BASE STATION, USER TERMINAL AND TRANSMISSION POWER CONTROL METHOD

摘要

The present invention is designed to enable uplink signal transmission power control that is suitable when non-orthogonal multiple access (NOMA) is used on the uplink. The radio base station of the present invention has a decision section that decides whether or not to non-orthogonal-multiplex uplink signals of a plurality of user terminals, a transmission section that transmits, to a user terminal, switching information to command a switch to one of a first transmission power control method, which is used when the uplink signals are non-orthogonal-multiplexed, and a second transmission power control method, which is used when the uplink signals are not non-orthogonal-multiplexed, based on the decision in the decision section, and transmission power determining information, which is used to determine transmission power of the uplink signal, and a receiving section that receives the uplink signal with transmission power that is determined based on the switching information and the transmission power determining information.

主权项

1. A radio base station comprising:
a decision section that decides whether or not to non-orthogonal-multiplex uplink signals of a plurality of user terminals; a transmission section that transmits, to a user terminal, switching information to command a switch to one of a first transmission power control method, which is used when the uplink signals are non-orthogonal-multiplexed, and a second transmission power control method, which is used when the uplink signals are not non-orthogonal-multiplexed, based on the decision in the decision section, and transmission power determining information, which is used to determine transmission power of an uplink signal; and a receiving section that receives the uplink signal transmitted from the user terminal with the transmission power determined based on the switching information and the transmission power determining information.