×

Channel access method in unmanned aerial vehicle (UAV) control and non-payload communication (CNPC) system

  • US 10,429,836 B2
  • Filed: 05/31/2017
  • Issued: 10/01/2019
  • Est. Priority Date: 11/14/2016
  • Status: Active Grant
First Claim
Patent Images

1. A channel access method in an unmanned aerial vehicle (UAV) control and non-payload communication (CNPC) system, the channel access method comprising:

  • setting an uplink frequency and a downlink frequency to each of a ground station and an airborne radio station; and

    performing, by the ground station and the airborne radio station, an initial access using the uplink frequency or the downlink frequency,wherein the setting comprises;

    measuring, by the airborne radio station, signal energy for all assignable center frequencies;

    selecting at least one center frequency corresponding to signal energy that is greater than or equal to a threshold; and

    setting, by the airborne radio station, the uplink frequency and the downlink frequency based on the at least one center frequency.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×