IP Library › Granted Patent US 12,695,508
Granted Patent B2
US 12,695,508 · App. 18/383,244 · Granted Jul 28, 2026

System and method of high-speed wireless communications using reflected laser light

Inventors: Roberto Rojas-Cessa (Brooklyn, NY); Paa Kwesi Esubonteng (Irvington, NJ)
Assignee: New Jersey Institute of Technology
H04B10/118H04B10/112H04B10/29H04B10/503
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Quick Facts
Patent No.
US 12,695,508
App. No.
18/383,244
Filed
Oct 24, 2023
Granted
Jul 28, 2026
Kind
B2
Art Unit
2634
USPC
398/204
Abstract

Disclosed is a drone-assisted and non-drone assisted NLoS-FSOC network and method for high-speed communications in disaster-struck areas or where there is little or no communications. NLoS-FSOC uses a diffuse reflector that is in LoS of a transmitter and receiver for establishing a broadcast optical channel. NLoS-FSOC establishes uplink and downlink transmissions. The present disclosure services at least 130% more stations and provides at least 100% more aggregated downlink data rates than drone-assisted than RF-based schemes. It also consumes 116 times less energy compared to RF-based schemes by using high-bandwidth optical signals and coherent light of laser light in NLoS-FSOC, optical broadcast channel use, and drone or non-drone front-haul diffuse reflection placement. The present disclosure is used autonomously or in combination with other systems such as RF schemes for a more robust solution to RF schemes alone.

Claims (20)

1 . A network system to provide high-bandwidth wireless communication, comprising:

an optical base station having a diffuse reflector;

one or more receiving stations for receiving and transmitting a high bandwidth wireless signal to the optical base station using nondirect line-of-sight free space optical communication (NLoS-FSOC); and

a relay in communication with the optical base station and the one or more receiving stations to form a network,

wherein the one or more receiving stations communicate with the relay via a first NLoS-FSOC link, and the relay communicates with the optical base station via a second NLoS-FSOC link

further comprising a modulator at the optical base station and a plurality of antennas, the modulator and plurality of antennas providing for communications at tens of gigabits per second.

2 . A method for high-speed communications, comprising:

providing a relay configured for NLoS-FSOC;

communicating between the relay and one or more receiving stations using a first NLoS-FSOC link; and

communicating between the relay and an optical base station using a second NLoS-FSOC link,

wherein the relay is either a drone having a diffuse reflector or an object having diffuse reflector material,

wherein the relay is the drone and the method further includes:

flying the drone to a geographical point; and

transmitting and receiving a signal whether the drone is still flying or landed, and wherein the drone projects light to the diffuse reflector to generate a transmission from the drone to one or more of the receiving stations.

3 . A method for high-speed communications, comprising:

providing a relay configured for NLoS-FSOC;

communicating between the relay and one or more receiving stations using a first NLoS-FSOC link; and

communicating between the relay and an optical base station using a second NLoS-FSOC link,

wherein the step of providing a relay comprises providing at least one drone as the relay, and

wherein the drone has one or more diffuse reflectors and wherein the drone projects a light beam to the one or more diffuse reflectors to generate a transmission to one or more of the receiving stations or to the optical base station.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2026
From: ROJAS-CESSA, ROBERTO; ESUBONTENG, PAA KWESI
To: NEW JERSEY INSTITUTE OF TECHNOLOGY
Reel/Frame 074308/0010 →
Continuity (2)
Provisional Application 63418848 · Oct 24, 2022
Related Publication 20240154698A1 · May 9, 2024
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