USER TERMINAL, RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD AND RADIO BASE STATION

摘要

To make it possible to feed back channel state information adequately even when a plurality of pieces of channel state information are generated in a user terminal, a user terminal that is configured to be able to conduct coordinated multi-point transmission/reception with a plurality of radio base stations has a generating section that generates a plurality of kinds of channel state information using channel state measurement reference signals transmitted from each radio base station, a selection section that selects predetermined channel state information to feed back, from the plurality of kinds of channel state information, and a transmission section that feeds back the predetermined channel state information to the radio base station via an uplink control channel, and the selection section selects the predetermined channel state information based at least on the priorities assigned to the resource indices of channel state measurement reference signals corresponding to each channel state information.

主权项

1. A user terminal that is configured to be able to conduct coordinated multi-point transmission/reception with a plurality of radio base stations, the user terminal comprising:
a generating section configured to generate a plurality of kinds of channel state information using channel state measurement reference signals transmitted from each radio base station; a selection section configured to select predetermined channel state information to feed back, from the plurality of kinds of channel state information; and a transmission section configured to feed back the predetermined channel state information to the radio base stations via an uplink control channel, wherein the selection section selects the predetermined channel state information based at least on priorities assigned to resource indices of the channel state measurement reference signals corresponding to each channel state information.