Devices, systems, and methods for predicting communication channel conditions

Patent metadata

Field	Value
Publication number	US-11778593-B2
Application number	US-202217903212-A
Country	US
Kind code	B2
Filing date	Sep 6, 2022
Priority date	May 1, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A method includes tracking a geographical location of a vehicle, accessing channel map data associating a channel condition value for each of a set of wireless channels with each of a set of geographical locations during a plurality of time periods of day, and based on the channel map data, the tracked geographical location of the vehicle, and a time of day associated with the vehicle, selecting one of the set of wireless channels for communication.

First claim

What is claimed is:

1. A method, comprising:
tracking a geographical location of a vehicle;
accessing channel map data associating a channel condition value for each of a set of wireless channels with each of a set of geographical locations during a plurality of time periods of day; and
based on the channel map data, the tracked geographical location of the vehicle, and a time of day associated with the vehicle, and prior to entering a first geographical location of the set of geographical locations, selecting one of the set of wireless channels for communication based on predicting channel condition values using the channel map data.

2. The method of claim 1 , further comprising communicating over the selected one of the set of wireless channels during the time of day associated with the vehicle.

3. The method of claim 1 , wherein the vehicle comprises an automobile.

4. The method of claim 1 , wherein the accessing of the channel map data comprises receiving the channel map data from a remote computer, wherein the channel map data is based on channel condition data crowdsourced from a plurality of devices.

5. The method of claim 1 further comprising:
detecting channel condition data for at least one of the plurality of wireless channels, within at least one of the set of geographical locations, during at least one of the plurality of time periods of day; and
providing the detected channel condition data for updating the channel map data.

6. The method of claim 5 , wherein the detecting of the channel condition data associated with the at least one of the plurality of the wireless channels comprises detecting at least one of a received signal strength indicator, a signal-to-noise ratio value, a transmit opportunity value, and a packet loss value.

7. The method of claim 5 , wherein the detecting of the channel condition data comprises determining that the wireless device is within a first geographical location and storing the channel condition data for the at least one of the plurality of wireless channels in a memory responsive to the determination.

8. The method of claim 5 , wherein the detecting of the channel condition data comprises determining that the wireless device is operating at a first time of day and storing the channel condition data for the at least one of the plurality of wireless channels in a memory responsive to the determination.

9. The method of claim 5 , wherein the detecting of the channel condition data comprises determining that a condition value associated with the at least one of the plurality of wireless channels meets or exceeds a threshold condition level and storing the channel condition data for the at least one of the plurality of wireless channels in a memory responsive to the determination.

10. The method of claim 1 , further comprising determining a speed of the vehicle, wherein the selecting of the one of the plurality of wireless channels for communication is initiated based on the determined speed.

11. The method of claim 1 , wherein the selecting of the one of the plurality of wireless channels comprises selecting the one of the plurality of wireless channels for communication in an automotive network including a wireless device in the vehicle and at least one other wireless device.

12. The method of claim 1 , wherein the selecting of the one of the plurality of wireless channels comprises:
using the channel map data, determining that a first predicted condition value of a first wireless channel within the first geographical location during a first time period of day is greater than a second predicted condition value of a second wireless channel within the first geographical location during the first time period of day; and
responsive to the determination, switching from using the first wireless channel for communication to using a second wireless channel for communication prior to entering the first geographical location.

13. The method of claim 1 , wherein the selecting the one of the plurality of wireless channels for communication comprises one of:
adjusting a transmit power used to transmit data via the selected one of the plurality of wireless channels; and
switching from using a first wireless channel width for communication to using a second wireless channel width for communication.

14. A system, comprising:
a vehicle;
a location tracker circuit configured to receive a geographical location of the vehicle;
a time tracker circuit configured to track time associated with the vehicle;
a memory system configured to store channel map data associating a channel condition value for each of a set of wireless channels with each of a set of geographical locations during a plurality of time periods of day; and
a channel condition evaluator circuit configured to, based on the channel map data, the tracked geographical location of the vehicle, and a time of day associated with the vehicle, and prior to entering a first geographical location of the set of geographical locations, select one of the set of wireless channels for communication by a wireless device coupled with the vehicle based on predicting channel condition values using the channel map data.

15. The system of claim 14 , further comprising the wireless device configured to communicate over the selected one of the set of wireless channels during the time of day associated with the vehicle, wherein the vehicle comprises an automobile containing the wireless device.

16. The system of claim 14 , wherein the channel condition evaluator circuit is configured to select the one of the plurality of wireless channels for communication in an automotive network including the wireless device as an access point and at least one other wireless device.

17. The system of claim 14 , further comprising a plurality of wireless devices, wherein:
the channel map data is based on the channel condition data crowdsourced from the plurality of wireless devices; and
the channel condition evaluator circuit is further configured to receive the channel map data from a remote computer.

18. The system of claim 14 , the wireless device further comprising:
a channel condition detector configured to:
detect channel condition data for at least one of the plurality of wireless channels, within at least one of the set of geographical locations, during at least one of the plurality of time periods of day; and
provide the detected channel condition data for updating the channel map data.

19. The system of claim 14 , wherein the channel condition detector is configured to detect the channel condition data by detecting at least one of a received signal strength indicator, a signal-to-noise ratio value, a transmit opportunity value, and a packet loss value.

20. The system of claim 14 , wherein the channel condition evaluator circuit is further configured to select the one of the plurality of wireless channels by:
using the channel map data, determining that a first predicted condition value of a first wireless channel within the first geographical location during a first time period of day is greater than a second predicted condition value of a second wireless channel within the first geographical location during the first time period of day; and
responsive to the determination, switching from using the first wireless channel for communication to using a second wireless channel for communication prior to entering the first geographical location.

Assignees

• Cypress Semiconductor Corp

Inventors

• Evans Bradley
• Stopher Nicholas

Classifications

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title

• H04W4/029

  Location-based management or tracking services · CPC title

• H04W4/40

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title

• H04W24/04

  Arrangements for maintaining operational condition · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title