Patent ID: 9397736
Filing Date: 2016-07-19
CPC Classification: H04B,H04L

Claim Text:
1. A user equipment (UE) operable to communicate channel state information in a wireless network, the UE comprising: transceiver circuitry arranged to receive, at the UE, from an Enhanced node B (eNB), a plurality of orthogonal frequency division multiple access (OFDMA) signals; processing circuitry arranged to derive one or more principal eigen beams from the received OFDMA signals, the principal eigen beams having a rank greater than or equal to one, the processing circuitry arranged to derive quantized eigen beams from the principal eigen beams; the processing circuitry further arranged to select, in response to the quantized eigen beams, a subset of available antenna ports on the eNB for receiving from the eNB and transmitting to the eNB; and the transceiver circuitry arranged to communicate to the eNB, via a Channel State Information Reference Signal (CSI-RS), a bit pattern of the quantized eigen beams and at least one of a wideband channel quality indicator (CQI) or a subband CQI conditioned on the quantized eigen beams.