Methods and systems for a distributed radio communications network

• US 10,135,499 B2
• Filed: 01/23/2017
• Issued: 11/20/2018
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Cognosos, Inc.
• Original Assignee: Cognosos, Inc.
• Inventors: Stratigos, Jr., James A.
• Primary Examiner(s): Elallam, Ahmed
• Application Number:
  US15/412,582
• Publication Number:
  US 20170201297A1
• Time in Patent Office: 666 Days
• CPC Class Codes: H04B 1/0003 Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain digital baseband systems H04L25/00; digital modulation/demodulation H04L27/00; CDMA H04B1/707; TDMA H04B7/2643; image transmission H04N5/00
• CPC Class Codes: H04B 7/022 Site diversity; Macro-diversity using two or more spaced independent antennas H04B7/04
• CPC Class Codes: H04B 7/0885 with combination
• CPC Class Codes: H04B 7/22 Scatter propagation systems , e.g. ionospheric, tropospheric or meteor scatter
• CPC Class Codes: H04L 27/06 Demodulator circuits; Receiver circuits
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

The present disclosure is directed to methods and systems for providing a distributed radio communications network. Each of a first gateway and a second gateway may separately receive modulated signals comprising at least a portion of data from a first node of a plurality of geographically-dispersed nodes. The modulated signals may be wirelessly transmitted as radio frequency (RF) signals from the first node, the data gathered or generated by the first node at a first location. A server may receive the modulated signals from the first gateway and the second gateway. As configured by software-defined radio (SDR) software, the server may perform processing of the separately received modulated signals to recover the data. The processing may include demodulation of the modulated signals.

Claims

1. A system for providing a distributed communications network, the system comprising:

a server configured to transmit a signal comprising information destined for a node device; and

a first gateway and a second gateway spatially separated from each other, the first gateway and the second gateway each configured to;

collect phase and amplitude information on one or more node signals respectively received from the node device;

cause the server to perform beamforming on the signal using the collected phase and amplitude information, the beamformed signal to be redirected to the node device via the first gateway and the second gateway;

receive the beamformed signal from the server; and

cause the received signal to be selectively enhanced in a respective spatial direction relative to the node device when redirected to the node device via the corresponding first or second gateway.

2. The system of claim 1, wherein the first gateway and the second gateway comprise a configuration of antennas configured to provide antenna diversity for the received signal across the first and second gateways.

3. The system of claim 1, wherein the first gateway and the second gateway comprise a configuration of antennas configured to selectively enhance the received signal in one or more specific spatial directions relative to the node device.

4. The system of claim 1, wherein the server transmits the beamformed signal as a space-time coded signal.

5. The system of claim 1, wherein at least one of the first gateway or the second gateway is further configured to transmit the selectively enhanced signal to the node device as a space-time coded signal.

6. The system of claim 1, wherein the server is configured by software-defined radio (SDR) software to perform beamforming on the signal.

7. The system of claim 1, wherein the server is configured by software-defined radio (SDR) software to perform multiple-input multiple-output (MIMO)/single-input multiple-output (SIMO) processing.

8. The system of claim 1, wherein the server is configured to perform multiple-input multiple-output (MIMO) processing by using a plurality of antennas for signal transmission.

9. The system of claim 1, wherein the first gateway and the second gateway is configured to cause the received signal to be selectively enhanced in one or more specific spatial directions and combined at the node device for improved signal-to-noise-ratio (SNR).

10. The system of claim 1, wherein the server is configured to transmit the beamformed signal at very high frequency (VHF) or ultra high frequency (UHF).

11. A method for providing a distributed communications network, the method comprising:

collecting, by a first gateway and a second gateway spatially separated from each other, phase and amplitude information on one or more node signals respectively received from a node device;

causing a server configured to transmit a signal comprising information destined for the node device, to perform beamforming on the signal using the collected phase and amplitude information, the beamformed signal to be redirected to the node device via the first gateway and the second gateway;

receiving, by the first gateway and the second gateway, the beamformed signal from the server; and

causing the received signal to be selectively enhanced in a respective spatial direction relative to the node device when redirected to the node device via the corresponding first or second gateway.

12. The method of claim 11, further comprising providing, by the first and second gateways, antenna diversity for the received signal across the first and second gateways using a configuration of antennas of the first and second gateways.

13. The method of claim 11, further comprising selectively enhancing, by the first and second gateways, the received signal in one or more specific spatial directions relative to the node device.

14. The method of claim 11, further comprising receiving, from the server, the beamformed signal as a space-time coded signal.

15. The method of claim 11, further comprising transmitting, by at least one of the first gateway or the second gateway, the selectively enhanced signal to the node device as a space-time coded signal.

16. The method of claim 11, wherein the server is configured by software-defined radio (SDR) software to perform beamforming on the signal.

17. The method of claim 11, wherein the server is configured by software-defined radio (SDR) software to perform multiple-input multiple-output (MIMO)/single-input multiple-output (SIMO) processing.

18. The method of claim 11, wherein multiple-input multiple-output (MIMO) processing is performed by using a plurality of antennas for signal transmission.

19. The method of claim 11, further comprises causing the received signal to be selectively enhanced in one or more specific spatial directions and combined at the node device for improved signal-to-noise-ratio (SNR).

20. The method of claim 11, further comprising receiving, from the server, the beamformed signal at very high frequency (VHF) or ultra high frequency (UHF).