Patent ID: 9509462
Filing Date: 2016-11-29
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A radio communication system comprising: a plurality of radio base station apparatuses, and a user terminal that performs coordinated multiple point transmission/reception with the plurality of radio base station apparatuses, the user terminal comprises: the radio base station apparatus comprises: a processor of the radio base station that updates the channel state information using the channel state information that is allotted in the plurality of subframes and fed back from the user terminal, wherein the processor of the user terminal generates the feedback information in each subframe that includes at least a subset of the channel state information of multiple cells, and wherein the processor of the user terminal generates the feedback information in which at least a channel quality indicator of an entire system band in one cell and a channel quality indicator of a subband of a different cell or Precoding Matrix Indicator (PMI) of the subband of the different cell are arranged in a physical uplink shared data channel in one subframe.