Patent ID: 9559820
Date: 2017-01-31
CPC Classifications: H04L

Claim:
1. A method for wireless communications, the method comprising: determining a plurality of channel state information reference signal (CSI-RS) groups for feedback reporting, each one of the plurality of CSI-RS groups comprising a set of CSI-RS ports assigned to antennas of multiple transmission points, each transmission point of the multiple transmission points comprising a cell identifier (ID); transmitting, to a user equipment (UE), an indicator that identifies the plurality of CSI-RS groups to the UE; transmitting, to the UE, CSI-RSs corresponding to the plurality of CSI-RS groups; providing signaling to the UE to restrict feedback reporting to a set of the plurality of CSI-RS groups; and receiving feedback reports, from the UE, corresponding to at least one CSI-RS group of the set of the plurality of CSI-RS groups.