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Reference signal design for LTE A

  • US 9,749,027 B2
  • Filed: 03/12/2014
  • Issued: 08/29/2017
  • Est. Priority Date: 09/19/2008
  • Status: Active Grant
First Claim
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1. A method used in a wireless communications system that facilitates identifying a set of two or more antenna ports, comprising:

  • receiving a mapping information that includes a linear combination employed to transmit a reference signal representing the set of two or more antenna ports, wherein the linear combination is employed to group a plurality of more than four physical transmit antennas into virtual antennas, thereby allowing user equipment that are able to utilize only up to four transmit antenna ports to utilize the more than four physical transmit antennas;

    receiving the reference signal representing the set of two or more antenna ports; and

    decoding, based on the mapping information, the reference signal representing the set of two or more antenna ports in order to identify each antenna port of the set of two or more antenna ports.

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