US Patent 10049587 Unmanned aerial vehicle navigation

System and techniques for unmanned aerial vehicle navigation are described herein. A plurality of transmission beams may be established. Here, each beam in the plurality of transmission beams is a focused photonic propagation directed to a fixed geographic area and a travel route intersects the fixed geographic areas of the plurality of transmission beams. Cell entry may be received for a vehicle transceiver entering a geographic area for a transmission beam in the plurality of beams. Scrambling codes corresponding to the plurality of transmission beams may be provided to the vehicle. A course parameter, decodable by a scrambling code of the scrambling codes, may be transmitted to the vehicle via the plurality of transmission beams.