| 摘要 |
RADIO RESOURCE SELECTING METHOD, MOBILE STATION AND RADIO BASE Abstract Disclosed is a radio resource selecting method for selecting, semi-fixedly, a radio resource to be allocated to an uplink response signal indicating a reception state of a fixedly allocated downlink signal, from a plurality of radio resources defined successively on a radio resource space formed with the frequency axis and the code axis. The method comprises the steps of: (A) generating first specification information for specifying, from the plurality of radio resources, radio resources to be allocated to the uplink response signal; (B) notifying the generated first specification information by an RRC message; (C) generating second specification information for specifying, from the plurality of radio resources, radio resources to be allocated to the uplink response signal; (D) notifying the generated second specification information by a PDCCH; and (E) selecting radio resources to be allocated to the uplink response signal, on the basis of the notified first specification information and the notified second specification information, wherein the first specification information is information for specifying absolute identification information of radio resources to be allocated to the uplink response signal, from the plurality of radio resources and the second specification information is information for specifying relative identification information for further specifying radio resources from the radio resources specified by the first specification information. 6784799v1 |
