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EVOLVED NODE B AND METHOD FOR COHERENT COORDINATED MULTIPOINT TRANSMISSION WITH PER CSI-RS FEEDBACK

  • US 20130194943A1
  • Filed: 06/18/2012
  • Published: 08/01/2013
  • Est. Priority Date: 01/27/2012
  • Status: Active Grant
First Claim
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1. An evolved Node B (eNB) configured for coherent joint transmission, the eNB to:

  • configure at least a first cooperating point and a second cooperating point to jointly transmit a multi-node channel-state information (CSI) reference signal (RS) (CSI-RS) in predetermined resource elements of a resource block;

    receive CSI reports as feedback from user equipment (UE), the CSI reports including a precoding matrix indicator (PMI) indicating relative phase information between the first and second cooperating points based on the multi-node CSI-RS; and

    configure at least the first and second cooperating points for a coherent joint transmission to the UE based at least on the relative phase information.

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