METHODS AND DEVICES FOR MITIGATING INTERFERENCE WITH FHSS SIGNALS

• US 20170310357A1
• Filed: 04/25/2016
• Published: 10/26/2017
• Est. Priority Date: 09/04/2013
• Status: Active Grant

• Current Assignee: Hubble Connected Ltd. (Binatone Electronics International Limited)
• Original Assignee: Binatone Electronics International Limited
• Inventors: LEE, Heung Sang, CHOW, Hung Pong, TIN, Wai Kuen
• Granted Patent: US 10,020,840 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 1/715 Interference-related aspects

Abstract

Methods and devices for mitigating interference with a signal of a frequency hopping spread spectrum system are disclosed. A second signal is detected, and a property of the second signal is determined. At least one of a set of designated frequency channels used by the frequency hopping spread spectrum system is determined as having a property most similar to that of the second signal. The usage, by the frequency hopping spread spectrum system, of the at least one most similar designated frequency channel is then modified, for communication of data.

Claims

1. A method of mitigating interference with a first signal that is a signal of a frequency hopping spread spectrum system, wherein the frequency hopping spread spectrum system utilizes a set of designated frequency channels, comprising:

detecting, with a radio communications device, a second signal that is not a frequency hopping spread spectrum signal;

determining, with the radio communications device, a property of said second signal;

comparing the property of the second signal with at least one property of each of the set of designated frequency channels;

determining, with the radio communications device, at least one of the set of designated frequency channels used by said frequency hopping spread spectrum system as having the at least one property that is most similar to said property of said second signal; and

modifying usage, with the radio communications device, of said at least one most similar designated frequency channel by said first signal to communicate data so as to mitigate interference between said first and second signals by reducing a frequency bandwidth for the data of the first signal when said first and second signals are concurrently communicating on the at least one similar designated frequency channel during simultaneous transmission of said first and second signals.

2. The method as claimed in claim 1, wherein reducing a frequency bandwidth for the data of the first signal comprises reducing a duty cycle for the data of the first signal.