Method of transmitting reference signal for channel state change measurement and apparatus therefor

  • US 11,088,801 B2
  • Filed: 01/05/2018
  • Issued: 08/10/2021
  • Est. Priority Date: 01/09/2017
  • Status: Active Grant
First Claim
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1. A method for receiving reference signals by a receiver in a wireless communication system, the method comprising:

  • receiving, from a transmitter, resource information; and

    receiving, from the transmitter, a first type reference signal and a second type reference signal based on the resource information,wherein the resource information includes information on a first resource element (RE) group for the second type reference signal in an orthogonal frequency division multiplexing (OFDM) symbol, and the information informs the UE whether or not a second RE group in the OFDM symbol is used for receiving data,wherein each of the first RE group and the second RE group includes REs having a predetermined interval in the OFDM symbol,wherein the second type reference signal is received in the first RE group and the data is received or not in the second RE group based on the resource information,wherein sequence elements of the first type reference signal are determined among sequence elements of the second type reference signal at equal element intervals, andwherein the first type reference signal is received every N OFDM symbols, wherein N is greater than 1.

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