MOBILE STATION AND RECEPTION METHOD

摘要

Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit which maps a data signal after modulation to a virtual antenna and a virtual antenna; a phase inversion unit which inverts the phase of S0 transmitted from an antenna port in synchronization with a phase inversion unit between the odd-number slot and the even-number slot; the phase inversion unit which inverts the phase of R0 transmitted from the antenna port; a phase inversion unit which inverts the phase of S1 transmitted from an antenna port in synchronization with a phase inversion unit; and the phase inversion unit which inverts the phase of R1 transmitted from an antenna port.

主权项

1. An integrated circuit to control a process, the process comprising:
transmitting first reference signals on a plurality of first resource elements; transmitting second reference signals different from the first reference signals on a plurality of second resource elements, a number of the plurality of second resource elements in a resource block being less than a number of the plurality of first resource elements in the resource block, the first reference signals being associated with mobile stations of a first type and the second reference signals being associated with mobile stations of a second type, wherein: a first one of the second reference signals is multiplied by “1” and is transmitted via a first one of a pair of antenna ports; and a second one of the second reference signals is multiplied by “−1” and is transmitted via a second one of the pair of antenna ports.