System and method for cross technology radio frequency interference mitigation

Patent metadata

Field	Value
Publication number	US-2025141637-A1
Application number	US-202318494102-A
Country	US
Kind code	A1
Filing date	Oct 25, 2023
Priority date	Oct 25, 2023
Publication date	May 1, 2025
Grant date	—

Abstract

A method for cross-technology radiofrequency interference mitigation includes detecting an RF device that is within a predetermined distance from a vehicle. The vehicle includes a plurality of wireless communication chipsets, each of the plurality of wireless communication chipsets is configured to wirelessly transmit and receive data. The method further includes determining that signals transmitted by the RF device is causing radiofrequency interference to signals transmitted by the plurality of wireless communication chipsets of the vehicle. Further, method includes commanding at least one of the plurality of wireless communication chipsets or the RF device to perform a control action to minimize the radiofrequency interference in response to determining that the that the signals transmitted by the RF device is causing radiofrequency interference to signals transmitted by the plurality of wireless communication chipsets of the vehicle.

First claim

What is claimed is:

1 . A method for cross-technology radiofrequency interference mitigation, comprising:
detecting that a RF device within a predetermined distance from a vehicle, wherein the vehicle includes a plurality of wireless communication chipsets, each of the plurality of wireless communication chipsets is configured to wirelessly transmit and receive data; determining that signals transmitted by the RF device are causing radiofrequency interference to signals transmitted by the plurality of wireless communication chipsets of the vehicle; and in response to determining that the that the signals transmitted by the RF device is causing radiofrequency interference to signals transmitted by the plurality of wireless communication chipsets of the vehicle, commanding at least one of the plurality of wireless communication chipsets or the RF device to perform a control action to minimize the radiofrequency interference.

2 . The method of claim 1 , wherein the control action includes changing a channel of operation of the RF device.

3 . The method of claim 1 , wherein the control action includes chaining a channel of operation of at least one of the plurality of wireless chipsets.

4 . The method of claim 1 , wherein the control action includes increasing an electrical power transmitted to the RF device.

5 . The method of claim 1 , wherein the control action includes increasing an electrical power transmitted to the at least one of the plurality of wireless chipsets.

6 . The method of claim 1 , further comprising determining a channel mapping distribution among the plurality of wireless communication chipsets of the vehicle and the RF device.

7 . The method of claim 6 , further comprising updating a plurality of channels of operation of the plurality of wireless communication chipsets of the vehicle and the RF device according to the channel mapping distribution.

8 . The method of claim 7 , further comprising determining a signal-to-noise ratio (SNR) of at least one of the plurality of wireless communication chipset to determine whether the signals transmitted by the RF device are causing the radiofrequency interference to signals transmitted by the plurality of wireless chipsets of the vehicle.

9 . The method of claim 8 , further comprising;
comparing the SNR of the at least one of the plurality of wireless communication chipset with a predetermined SNR threshold to determine whether the SNR of the RF device is less than the predetermined SNR threshold; and determining that the SNR of the at least one of the plurality of wireless communication chipset is less than the predetermined SNR threshold.

10 . The method of claim 9 , wherein the control action is performed solely in response to determining that the SNR of the RF device is less than the predetermined SNR threshold.

11 . A system for cross-technology radiofrequency interference mitigation, comprising:
a vehicle including a controller and a plurality of wireless communication chipsets in communication with the controller; wherein the controller is programmed to:
detect that a RF device within a predetermined distance from the vehicle, wherein the vehicle includes a plurality of wireless communication chipsets, each of the plurality of wireless communication chipsets is configured to wirelessly transmit and receive data;
determine that signals transmitted by the RF device is causing radiofrequency interference to signals transmitted by the plurality of wireless chipsets of the vehicle; and
in response to determining that the that the signals transmitted by the RF device is causing radiofrequency interference to signals transmitted by the plurality of wireless chipsets of the vehicle, command at least one of the plurality of wireless communication chipsets or the RF device to perform a control action to minimize the radiofrequency interference.

12 . The system of claim 11 , wherein the control action includes changing a channel of operation of the RF device.

13 . The system of claim 11 , wherein the control action includes chaining a channel of operation of at least one of the plurality of wireless chipsets.

14 . The system of claim 11 , wherein the control action includes increasing a power transmitted to the RF device.

15 . The system of claim 11 , wherein the control action includes increasing a power transmitted to the at least one of the plurality of wireless chipsets.

16 . The system of claim 11 , wherein the controller is programmed to determine a channel mapping distribution among the plurality of wireless communication chipsets of the vehicle and the RF device.

17 . The system of claim 16 , wherein the controller is programmed to update a plurality of channels of operation of the plurality of wireless communication chipsets of the vehicle and the RF device according to the channel mapping distribution.

18 . The system of claim 17 , wherein the controller is programmed to determine a signal-to-noise ratio (SNR) of at least one of the plurality of wireless communication chipsets of the vehicle to determine whether the signals transmitted by the RF device are causing radiofrequency interference to the signals transmitted by the plurality of wireless chipsets of the vehicle.

19 . The system of claim 18 , wherein the controller is programmed to:
compare the SNR of the at least one of the plurality of wireless communication chipsets with a predetermined SNR threshold to determine whether the SNR of the RF device is less than the predetermined SNR threshold; and determine that the SNR of the RF device is less than the predetermined SNR threshold.

20 . The system of claim 19 , wherein the control action is performed solely in response to determining that the SNR of the RF device is less than the predetermined SNR threshold.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Ali Kamran
• Thanayankizil Lakshmi V

Classifications

• H04B17/336

  Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] · CPC title

• H04L5/0073 Primary

  Allocation arrangements that take into account other cell interferences · CPC title

• H04B15/00 Primary

  Suppression or limitation of noise or interference (by means associated with receiver H04B1/10) · CPC title

• H04B17/345 Primary

  Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title