Patent ID: 9735844
Date: 2017-08-15
CPC Classifications: H04B,H04L

Claim:
1. A method of Coordinated Multipoint (CoMP) communication, comprising the steps of: receiving at a user equipment (UE) a plurality of channel state information reference signals (CSI-RSs) transmitted from a base station having a plurality of transmission points; measuring downlink channel state information at the UE for each of the plurality of CSI-RSs including a rank indicator (RI), a precoding matrix indicator (PMI) and a channel quality indicator (CQI); and transmitting the downlink channel state information, for a first CSI-RS in an uplink feedback channel having a first feedback periodicity and a first timing offset and transmits the downlink channel state information for a second CSI-RS in an uplink feedback channel having a second feedback periodicity and a second timing offset, said second feedback periodicity differing from said first feedback periodicity.