Telefonaktiebolaget LM Ericsson (publ)
Layer 1 and layer 2 channel state information rich reporting mechanisms

Abstract:

A method and system for reporting multi-beam channel state information, CSI, in a wireless device are disclosed. According to one aspect, the method includes providing an indication of a plurality of beam index pairs, (l.sub.k,m.sub.k), in the UCI in a first transmission, each beam index pair corresponding to a beam k. The method also includes providing an indication of at least one of a beam power, a beam rotation and a channel quality index, CQI, in the UCI in a second transmission. The method also includes transmitting at least one of the indication of beam index pairs, beam power, beam rotation and CQI.