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Quasi co-location identification of reference symbol ports for coordinated multi-point communication systems

  • US 10,085,202 B2
  • Filed: 04/19/2013
  • Issued: 09/25/2018
  • Est. Priority Date: 04/19/2012
  • Status: Active Grant
First Claim
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1. A method for identifying quasi co-located reference signal ports by a user equipment (UE), the method comprising:

  • receiving downlink control information;

    identifying, from the downlink control information, a channel state information reference signal (CSI-RS) port that is quasi co-located with a demodulation reference signal (DM-RS) port assigned to the UE;

    identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port; and

    performing at least one of channel estimation, time synchronization, or frequency synchronization using the large scale properties for the assigned DM-RS port and the CSI-RS port.

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