×

Node unit capable of measuring delay and distributed antenna system including the same

  • US 9,584,386 B2
  • Filed: 03/24/2016
  • Issued: 02/28/2017
  • Est. Priority Date: 12/30/2014
  • Status: Active Grant
First Claim
Patent Images

1. A node unit of distributed antenna system, the node unit comprising:

  • a delay measuring part configured to transmit a first test signal to an upper adjacent node unit and detect the first test signal looped back via the upper adjacent node unit and measure a first round trip delay with respect to the upper adjacent node unit based on the first test signal; and

    a delay providing part disposed on a signal transmission path through which a second test signal, transmitted from a lower adjacent node unit, is to be looped back to the lower adjacent node unit, and configured to provide a delay corresponding to the first round trip delay to the second test signal,wherein the second test signal is used for measuring a second round trip delay between the lower adjacent node unit and the node unit by the lower adjacent node unit.

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