Patent ID: 8442546
Filing Date: 2013-05-14
Classification: H04L

Abstract:
1. A radio base station configured to transmit to a specific mobile station a control signal instructing to transmit information data in an uplink shared channel, and to receive from the specific mobile station the information data transmitted by using first resource blocks assigned to the specific mobile station in the uplink shared channel, the radio base station comprising: a calculation unit configured to calculate an adjusted value of a reception quality, based on the reception quality of a transmission signal of the specific mobile station in at least one first resource blocks assigned to the specific mobile station out of radio resources for the uplink shared channel, and the number of resource elements assigned to transmission of control information or transmission of Sounding Reference Signal in the first resource blocks; a selection unit configured to select, based on the adjusted value of the reception quality, the number of bits which can be transmitted and a modulation scheme that should be used in the first resource blocks; and a transmission unit configured to transmit the number of bits and the modulation scheme that should be used in the first resource blocks, as one element of the control signal.