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

摘要

<P>PROBLEM TO BE SOLVED: To demodulate an uplink signal at a base station device by appropriately processing a signal related to PMI. Ž<P>SOLUTION: A base station device A includes a receiving circuit for receiving a plurality of spatially multiplexed different signals and has a function for notifying a mobile station device B of coefficients weighting the signals. The base station device A notifies the mobile station device B of two or more weight coefficients for weighting signals to be transmitted from the mobile station B to the base station device A while using different channels (403-405) and the mobile station device B, that communicates with the base station device A, selects any one of the weight coefficients received from the base station device A and transmits to the base station device A a first signal representing which one of the transmitted weight coefficients is selected, together with the transmission signals weighted by utilizing the weight coefficients (409). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž