Quantized eigen beams for controlling antenna array elements in a wireless network

摘要

A user equipment (UE) may communicate channel state information in a wireless network. The UE may include transceiver circuitry to receive orthogonal frequency division multiple access (OFDMA) signals from an Enhanced node B (eNB). The UE may include processing circuitry to derive one or more principal eigen beams from the received OFDMA signals. The principal eigen beams may have a rank greater than or equal to one. The processing circuitry may derive quantized eigen beams from the principal eigen beams. The processing circuitry may 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. The UE may communicate to the eNB 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.

主权项

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.