Handling signals received on paths with differing numbers of hops

Patent metadata

Field	Value
Publication number	US-12244404-B2
Application number	US-202318340321-A
Country	US
Kind code	B2
Filing date	Jun 23, 2023
Priority date	Oct 4, 2017
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A wireless communication system includes a first wireless communication node for transmitting a data signal that is sent to a second wireless communication node by skywave propagation over at least two different data transmission paths. The first data transmission path includes at least one reflection point where the data signal is reflected by the atmosphere and the second data transmission path includes more reflection points than the first data transmission path. The data signal that travelled along the first data transmission path is decoded before the data signal that travelled along the second data transmission path.

First claim

What is claimed is:

1. A system comprising:
a first wireless communication node for transmitting a data signal as an electromagnetic wave, wherein the data signal is sent over a first data transmission path and a second data transmission path using skywave propagation;
a second wireless communication node configured to receive and decode the data signal transmitted from the first wireless communication node;
wherein the first data transmission path includes at least one reflection point, wherein the data signal is reflected by the atmosphere;
wherein the first wireless communication node is configured to transmit the data signal over the first data transmission path using a first packet size;
wherein the first wireless communication node is configured to transmit the data signal transmitted over the second data transmission path using a second packet size;
wherein the second data transmission path includes more reflection points than the first data transmission path; and
wherein the second packet size is smaller than the first packet size to minimize distortions created along the second data transmission path.

2. The system of claim 1 , wherein the data signal from the first data transmission path is decoded before the data signal from the second data transmission path.

3. The system of claim 2 , wherein the data signal sent over the second data transmission path is decoded only if the data signal sent over the first data transmission path is not decoded correctly.

4. The system of claim 1 , wherein the first data transmission path includes two reflection points.

5. The system of claim 1 , wherein the second data transmission path includes three reflection points.

6. The system of claim 1 , wherein the data signal from the first data transmission path and the data signal from the second data transmission path are processed in parallel.

7. The system of claim 1 , wherein the reflection point is a location at which the electromagnetic wave is refracted by the ionosphere of the earth so that the electromagnetic wave begins to travel back to the surface of the earth.

8. The system of claim 1 , wherein the data signal includes financial trading data.

9. A method comprising:
transmitting a data signal from a first wireless communication node, wherein savethe data signal is sent over a first data transmission path and a second data transmission path using sky-wave propagation, and wherein said first data transmission path includes at least one reflection point wherein the data signal is reflected by the atmosphere and the second data transmission path includes more reflection points than the first data transmission path;
wherein the transmitting includes
transmitting the data signal over the first data transmission path using a first packet size at a first transmission angle,
transmitting the data signal transmitted over the second data transmission path using a second packet size at a second transmission angle,
wherein the first transmission angle is lower than the second transmission angle, and wherein the second packet size is larger than the first packet size to incorporate additional error correction;

receiving the data signal from the first data transmission path and the second data transmission path at a second wireless communication node;
decoding the data signal from the first data transmission path;
decoding the data signal from the second data transmission path; and
wherein decoding the data signal from the first data transmission path begins before decoding the data signal from the second data transmission path.

10. The method of claim 9 , wherein decoding the data signal from the second data transmission path begins after decoding the data signal from the first data transmission path has been completed.

11. The method of claim 10 , wherein the data signal from the second data transmission path is decoded only if the data signal from the first data transmission path is not decoded correctly.

12. The method of claim 9 , wherein decoding the data signal from the second data transmission path is performed in parallel with decoding the data signal from the first data transmission path.

13. The method of claim 9 , further comprising:
processing the data signal from the first data transmission path if the data signal is decoded correctly.

14. The method of claim 9 , further comprising:
processing the data signal from the second data transmission path if the data signal from the first data transmission path is not decoded correctly.

15. The method of claim 9 , wherein the first data transmission path includes two reflection points.

16. The method of claim 9 , wherein the second data transmission path includes three reflection points.

17. The method of claim 9 , wherein the reflection point is a location at which the electromagnetic wave is refracted by the ionosphere of the earth so that the electromagnetic wave begins to travel back to the surface of the earth.

18. The method of claim 9 , wherein the data signal includes financial trading data.

Assignees

• Skywave Networks Llc

Inventors

• Babich Kevin J

Classifications

• H04L1/06

  using space diversity · CPC title

• H04B7/028

  Spatial transmit diversity using a single antenna at the transmitter · CPC title

• G06Q40/04

  Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange · CPC title

• H04B7/24 Primary

  for communication between two or more posts (wireless communication networks H04W) · CPC title

• H04B7/22 Primary

  Scatter propagation systems {, e.g. ionospheric, tropospheric or meteor scatter} · CPC title