MOBILE STATION APPARATUS, BASE STATION APPARATUS, METHOD AND INTEGRATED CIRCUIT

摘要

Provided are a mobile station apparatus, a base station apparatus, a method and an integrated circuit whereby the complexity of the setting by a base station apparatus can be eliminated and whereby the orthogonality of the resources of reference signals of the respective ones of a plurality of antennas can be improved to perform an efficient scheduling. A mobile station apparatus, which uses a plurality of antenna ports to transmit sounding reference signals to a base station apparatus, determines, on the basis of one value that is set uniquely to the mobile station apparatus by use of a parameter reported from the base station apparatus via an upper layer, a cyclic shift that is to be applied to the sounding reference signals corresponding to the respective ones of the plurality of antenna ports.