TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION SYSTEM, RADIO RESOURCE REQUESTING METHOD AND INTEGRATED CIRCUIT

摘要

Provided are a terminal apparatus, a base station apparatus, a communication system, a radio resource requesting method, and an integrated circuit that can improve efficiency of radio resource use by efficiently performing a radio resource request control between a mobile station apparatus and the base station apparatus. The base station apparatus configures a transmission parameter of a control channel used in the radio resource request and a parameter for determining a transmission state of the control channel used in the radio resource request in the terminal apparatus. The terminal apparatus transmits a message related to a permission to change the transmission parameter of the control channel used in the radio resource request to the base station apparatus on the basis of the transmission state of the control channel used in the radio resource request.