US 11,689,909 B2
Long-range narrowband transmission using near vertical incidence skywave (NVIS)
Mario Di Dio, Longmont, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Aug. 31, 2021, as Appl. No. 17/462,914.
Application 17/462,914 is a continuation of application No. 16/654,652, filed on Oct. 16, 2019, granted, now 11,109,207.
Claims priority of provisional application 62/746,714, filed on Oct. 17, 2018.
Prior Publication US 2021/0400455 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04W 4/38 (2018.01); H04W 4/80 (2018.01); H04W 72/0453 (2023.01)
CPC H04W 4/80 (2018.02) [H04L 5/0055 (2013.01); H04W 72/0453 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for maximizing a communication range of a IoT device to facilitate long-range, narrowband wireless transmission of data, the method comprising:
receiving data from the IoT device, the IoT device generating the data at a first frequency greater than a maximum frequency required for Near Vertical Incidence Skywave (NVIS) communications;
converting the data to a second frequency sufficient for NVIS communications; and
transmitting the data at the second frequency from an NVIS antenna associated with the IoT device.