MOBILE STATION APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD AND COMMUNICATION SYSTEM

摘要

Provided is a mobile communication system in which a mobile station apparatus periodically transmits to a base station apparatus transmission signal sequence quantity information and reception quality information calculated according to the transmission signal sequence quantity information. When the transmission signal sequence quantity/quality signal cannot be transmitted periodically, it is possible to clarify which transmission signal sequence quantity is the reception quality information on the reception performed immediately thereafter, so that the base station apparatus can perform an appropriate communication resource allocation. The mobile communication system includes a feedback information control unit (65) which generates feedback information containing reception quality information, transmission signal pre-processing information, and transmission signal sequence quantity information; and a radio transmission unit (51) which periodically transmits the generated feedback information to the base station apparatus. When the transmission signal sequence quantity information is not transmitted by a communication resource periodically allocated for transmitting the transmission signal sequence quantity information from the base station apparatus, the radio transmission unit (51) transmits the transmission signal sequence information to the base station apparatus by the next communication resource which can transmit the feedback information allocated by the base station apparatus.