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Apparatus and method for estimating channel

  • US 9,419,822 B2
  • Filed: 11/07/2012
  • Issued: 08/16/2016
  • Est. Priority Date: 11/07/2011
  • Status: Active Grant
First Claim
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1. A method for transmitting a reference signal to User Equipment (UE) by a transmission point, the method comprising:

  • transmitting first initialization value generation information and second initialization value generation information through a high layer signaling, wherein the higher layer signaling corresponds to a radio resource control (RRC) signaling, wherein the first initialization value generation information is configured to be derived from a first value of scrambling code identity (SCID) (nSCID) information and used to determine a first initialization value for generating a reference signal sequence for the UE, and wherein the second initialization value generation information is configured to be derived from a second value of the SCID (nSCID)information and used to determine a second initialization value for generating a reference signal sequence for the UE;

    transmitting the SCID (nSCID) information as selection indication information to the UE; and

    generating a reference signal for the UE based on one of the first initialization value and the second initialization value selected by the SCID (nSCID) information, and transmitting the generated reference signal to the UE,wherein the SCID (nSCID) information is included in downlink control information (DCI).

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