×

METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

  • US 20150271814A1
  • Filed: 09/24/2013
  • Published: 09/24/2015
  • Est. Priority Date: 09/24/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method in a downlink subframe with an extended cyclic prefix (CP), in which a resource to which a first demodulation reference signal is mapped (referred to as a “

  • first resource pattern”

    hereinafter) is configured, through a predetermined number of antenna ports (referred to as a “

    first antenna”

    hereinafter) in a wireless communication system, the method for transmitting a second demodulation reference signal added to support an additional antenna port (referred to as a “

    second antenna”

    hereinafter) to a user equipment (UE) comprising;

    .specifying subframe(s) in which a channel state information reference signal (CSI-RS) is not transmitted and positions of resources to which the CSI-RS is mapped in subframe(s) in which the CSI-RS is transmitted based on CSI-RS configuration information;

    selecting a resource to which the second demodulation reference signal is mapped (referred to as a “

    second resource pattern”

    hereinafter) from among resources of the subframe(s) in which the CSI-RS is not transmitted, the resources corresponding to the positions of the resources to which the CSI-RS is mapped; and

    mapping the second demodulation reference signal to the second resource pattern.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×