Radio communication device, radio communication method, and radio communication system

摘要

In a radio communication, a UE terminal uses a CSI-RS as a reference signal for point selection only in the case of a scenario 4, and uses a CRS as a reference signal for point selection in the cases of scenarios 1 to 3 other than the scenario 4. Through RRC signaling, an eNodeB notifies the UE terminal of the fact that the measurement of a specific cell ID will be performed using a CSI-RS, that is, a cell ID using a CSI-RS as a reference signal for point selection. The operations suppress overhead of reference signals and improve a point selection update frequency.

主权项

1. A radio communication device comprising:
a subordinate base station information acquisition part configured to acquire information related to a number of terminals requiring a multi-point cooperative transmission and reception from base stations subordinate to the radio communication device; a transmission frequency control part configured to control a frequency of transmitting a reference signal by the base stations, for determining a cooperation group configured to perform the multi-point cooperative transmission and reception, based on the number of terminals requiring the multipoint cooperative transmission and reception; and a notification part configured to notify each base station of control information obtained by the transmission frequency control part.