MOBILE STATION DEVICE, BASE STATION DEVICE, RADIO COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To switch the number of symbols in which DMRS is increased when improving propagation path estimation precision by increasing DMRS in PUSCH, in such environment as a mobile station device has a high Doppler frequency.

SOLUTION: A mobile station device 200 for radio communication with a base station device 100 is provided with: a receiving part 210 for receiving control information from the base station device 100; a scheduling information managing part 220 which determines the number of symbols per a single sub-frame of the reference signal utilized by the base station device 100 for propagation path compensation of uplink, based on the received control information; and a transmission part 230 which transmits the reference signal to the base station device 100, based on the number of symbols per the determined single sub-frame.

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