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Reference signals and common search space for enhanced control channels

  • US 10,477,529 B2
  • Filed: 02/28/2017
  • Issued: 11/12/2019
  • Est. Priority Date: 05/03/2012
  • Status: Active Grant
First Claim
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1. A method for receiving a reference signal (RS) by a user equipment (UE), the method comprising:

  • receiving at least one broadcast signal from a base station;

    determining a first location in a downlink bandwidth in a first set of physical resource blocks (PRBs) for reception of a first physical downlink control channel (PDCCH) based on the at least one broadcast signal;

    determining a second location in the downlink bandwidth in a second set of PRBs for reception of a second PDCCH based on a higher layer signaling; and

    receiving the RS in the first set of PRBs based on the first location or in the second set of PRBs based on the second location,wherein the RS is scrambled by a sequence determined based on a physical identity of the base station, in a case that the RS is received in the first set of PRBs, andwherein the RS is scrambled by a sequence determined based on the higher layer signaling, in a case that the RS is received in the second set of PRBs.

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