RADIO BASE STATION DEVICE, RADIO TERMINAL DEVICE, RADIO RELAY STATION DEVICE, TRANSMISSION POWER CONTROL METHOD, RADIO COMMUNICATION RELAY METHOD, AND RADIO COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a radio base station device in which the resource utilization effect is improved by enabling increase in delay to an RRC connection probability to be suppressed.;SOLUTION: Different resources are assigned to a terminal and a relay station as resources for communications with a base station. A radio base station device 1 provided in the base station includes a determination unit 7 for determining whether a random access preamble is relayed or not on the basis of resource information contained in the random access preamble, and a response generation unit 10 for generating a random access response to which relay flag information is added. When the random access response to which the relay flag information is added is transmitted from the base station to the terminal, at the terminal, transmission power of an RRC connection request is controlled on the basis of the relay flag information.;COPYRIGHT: (C)2009,JPO&INPIT