TERMINAL APPARATUS, MAPPING METHOD AND INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a terminal apparatus capable of preventing deterioration in CQI estimation accuracy on a terminal apparatus which receives SRS (sounding reference signal) when the SRS is transmitted using a system band which is divided into plural RBGs.SOLUTION: The terminal apparatus includes: a setting section that divides a system band including plural RBs into plural RBGs, and sets an SRS transmission band in the system band and frequency positions of the plural RBGs so that a frequency position at any end in the plural RBGs and the frequency position of the end of the SRS transmission band including plural RBs for transmitting the SRS coincide with each other; a mapping section that maps the SRS in the set SRS transmission band in which the number of the RBs included in the SRS transmission band is positive integer times of the RBs constituting one RBG; and a transmission section that transmits the mapped SRS.