Radio communication terminal, base station, radio communication method and radio communication system

摘要

A radio communication terminal (100) includes a correction unit (154) configured to correct data signals by using reference signals included in a received frame from a base station (200), a determination unit (140) for determining whether it is possible to have good radio communication with the base station (200) based on a condition of radio communication with the base station (200), a transmission frame generation unit (110), upon determination that it is possible to perform good radio communication, for generating a transmission frame with a reduced number of reference signals as a notification signal, and a transmission unit (120) for transmitting the notification signal to the base station (200). The correction unit (154) corrects the data signal by using the reference signals included in the received frame in which at least one reference signal is replaced with the data signal, from the base station (200) corresponding to the notification signal.

主权项

1. A radio communication terminal for performing radio communication with a base station by adopting Orthogonal Frequency Division Multiple Access scheme using a frame including data signals and reference signals used for correction of the data signals, comprising:
a determination unit configured to determine whether it is possible to perform good radio communication with the base station; a transmission frame generating unit configured to generate a transmission frame having a reduced number of reference signals if it is determined that it is possible to perform good radio communication with the base station; a transmission unit configured to transmit the transmission frame having the reduced number of reference signals as a notification signal to the base station, said notification signal being a transmission frame in which a predetermined reference signal is replaced with a null signal; and a correction unit configured to correct the data signals included in a received frame from the base station by using the reference signals included in the received frame, wherein the determination unit determines the number of reference signals based on a state of the radio communication with the base station.