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SUPPORTING MEASURMENTS AND FEEDBACK FOR 3D MIMO WITH DATA TRANSMISSION OPTIMIZATION

  • US 20140003240A1
  • Filed: 12/27/2012
  • Published: 01/02/2014
  • Est. Priority Date: 07/02/2012
  • Status: Active Grant
First Claim
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1. A device for reducing feedback overhead associated with multiple vertical beams from a two-dimensional antenna array for wireless communication, comprising:

  • a receive module, at a User Equipment (UE), configured to receive multiple Channel State Information-Reference Signal (CSI-RS) resources, wherein a CSI-RS resource corresponds to one of multiple vertical beam configurations; and

    a selection module, at the UE, configured to select a subset of multiple vertical beam configurations for which to provide CSI-RS reports to reduce a number of CSI-RS reports, leaving a set of non-selected CSI-RS resources unreported; and

    a preparation module, at the UE, configured to prepare at least one CSI-RS report for the subset of multiple vertical beam configurations; and

    a reporting module, at the UE, to send the at least one CSI-RS report to an evolved Node B (eNodeB).

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