1. A communication device comprising:one or more processors; and
one or more memories including instructions that, when executed by the processor(s), cause the communication device to:
receive a trigger frame including information on a plurality of resource units and an information element used for determining transmission power of the communication device from a base station; and
transmit a data signal to the base station in a resource unit designated for the communication device by the trigger frame with transmission power determined based on the information element and signal quality between the communication device and the base station,
wherein the communication device transmits the data signal with first transmission power when the signal quality is a first quality, and transmits the data signal with second transmission power higher than the first transmission power when the signal quality is a second quality lower than the first quality.