Granted Patent B2

US 10,700,794 · App. 16/408,153 · Granted Jun 30, 2020

Inventors: David William Kleinbeck (Lees Summit, MO); Ronald C. Dzierwa (Baltimore, MD)

Assignee: DIGITAL GLOBAL SYSTEMS, INC.

H04B17/309H04B17/20H04B17/23H04B17/26H04B17/27H04B17/29H04W24/08H04W24/10H04W64/00H04B17/24H04W24/04

Abstract

Claims (54)

1. A system for automatic signal detection in a radio-frequency (RF) environment, comprising:

at least one node device in a fixed nodal network; and

at least one remote server in network communication with the at least one node device;

wherein the at least one node device comprises at least one receiver and at least one processor coupled with at least one memory;

wherein the at least one node device is operable to measure and learn the RF environment in a learning period based on statistical learning techniques, thereby creating learning data;

wherein the at least one node device is operable to create a spectrum map based on the learning data;

wherein the at least one node device is operable to calculate a power distribution by frequency of the RF environment in real time or near real time, including a first derivative and a second derivative of fast Fourier transform (FFT) data of the RF environment;

wherein the at least one node device is operable to select most prominent derivatives of the first derivative and the second derivative;

wherein the at least one node device is operable to perform a squaring function on the most prominent derivatives;

wherein the at least one node device is operable to identify at least one signal based on matched positive and negative gradients;

wherein the at least one node device is operable to transmit the learning data and/or the FFT data to the at least one remote server;

wherein the at least one remote server is operable to perform spectrum analytics based on the learning data and/or the FFT data; and

wherein the spectrum analytics includes averaging a real-time spectral sweep, removing areas identified by the matched positive and negative gradients, connecting points between removed areas to determine a baseline, and subtracting the baseline from the real-time spectral sweep.

2. The system of claim 1 , wherein the remote server is operable to display the spectrum map via a graphical user interface (GUI).

3. The system of claim 1 , wherein the at least one signal has a frequency equal to or higher than 5.8 GHz.

4. The system of claim 1 , wherein the at least one node device is operable to detect a location of a signal transmitter of the at least one signal based on Time-Difference-of-Arrival (TDoA), Power-Difference-of-Arrival (PDoA) and/or Angle-of-Arrival (AoA).

5. The system of claim 1 , wherein the at least one node device is fixed in or on at least one street light box.

6. The system of claim 1 , wherein the at least one node device is fixed on at least one cellular base station comprising at least one macrocell base station and/or at least one small cell base station.

7. The system of claim 1 , wherein the at least one node device is mobile.

8. The system of claim 1 , wherein the at least one node device is portable and/or transportable.

9. The system of claim 1 , wherein the at least one node device is operable to display the spectrum map via a graphical user interface (GUI).

10. The system of claim 1 , wherein the at least one node device is operable to calculate a percentage of spectrum utilization in the RF environment.

11. The system of claim 10 , wherein the at least one node device is further operable to determine if an RF spectrum is under-utilized or over-utilized based on the percentage of spectrum utilization in the RF environment.

12. The system of claim 1 , wherein the learning period is a predetermined period of time or a period of time required to reach a settled percent.

13. A method for automatic signal detection in an electromagnetic environment, comprising:

providing a multiplicity of node devices constructed and configured for mesh network communication in the electromagnetic environment;

providing at least one remote server in network communication with the multiplicity of node devices;

the multiplicity of node devices measuring and learning the electromagnetic environment in a learning period based on statistical learning techniques, thereby creating learning data;

the multiplicity of node devices creating a spectrum map based on the learning data;

the multiplicity of node devices calculating a power distribution by frequency of the electromagnetic environment in real time or near real time, including a first derivative and a second derivative of fast Fourier transform (FFT) data of the electromagnetic environment;

the multiplicity of node devices selecting most prominent derivatives of the first derivative and the second derivative;

the multiplicity of node devices performing a squaring function on the most prominent derivatives;

the multiplicity of node devices identifying at least one signal based on matched positive and negative gradients;

the multiplicity of node devices transmitting the learning data and/or the FFT data to the at least one remote server; and

the at least one remote server averaging a real-time spectral sweep, removing areas identified by the matched positive and negative gradients, connecting points between removed areas to determine a baseline, and subtracting the baseline from the real-time spectral sweep, thereby creating signal data.

14. The method of claim 13 , further comprising the multiplicity of node devices detecting interferences in the electromagnetic environment and/or historical interferences in the electromagnetic environment.

15. The method of claim 13 , further comprising the multiplicity of node devices identifying at least one white space in the electromagnetic environment.

16. The method of claim 13 , wherein the learning period is a predetermined period of time or a period of time required to reach a settled percent.

17. The method of claim 13 , further comprising sending a notification and/or an alarm to an operator after detecting the at least one signal.

18. The method of claim 13 , further comprising storing the learning data, the FFT data, and/or the signal data on the at least one remote server.

19. The method of claim 13 , further comprising periodically reevaluating the electromagnetic environment and updating the spectrum map.

20. A system for automatic signal detection in an electromagnetic environment, comprising:

a multiplicity of node devices constructed and configured for mesh network communication in the electromagnetic environment; and

at least one remote server in network communication with the multiplicity of node devices;

wherein the multiplicity of node devices comprises at least one receiver and at least one processor coupled with at least one memory;

wherein the multiplicity of node devices is operable to measure the electromagnetic environment in a learning period, thereby creating learning data;

wherein the multiplicity of node devices is operable to create a spectrum map based on the learning data;

wherein the multiplicity of node devices is operable to calculate a power distribution by frequency of the electromagnetic environment in real time or near real time, including a first derivative and a second derivative of fast Fourier transform (FFT) data of the electromagnetic environment;

wherein the multiplicity of node devices is operable to select most prominent derivatives of the first derivative and the second derivative;

wherein the multiplicity of node devices is operable to perform a squaring function on the most prominent derivatives;

wherein the multiplicity of node devices is operable to identify at least one signal based on matched positive and negative gradients;

wherein the multiplicity of node devices is operable to transmit the learning data and/or the FFT data to the at least one remote server;

wherein the at least one remote server is operable to perform spectrum analytics based on the learning data and/or the FFT data; and

wherein the spectrum analytics includes averaging a real-time spectral sweep, removing areas identified by the matched positive and negative gradients, connecting points between removed areas to determine a baseline, and subtracting the baseline from the real-time spectral sweep, thereby creating signal data.

Assignments (2)

Continuity (11)