# US 10,321,463 B1 · Method and apparatus for an accelerometer assisted control system for a reconfigurable antenna communication device

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- Number: US 10,321,463 B1
- Document ID: US10321463B1
- Status: Granted
- Kind: B1
- Application number: 15/872,969
- Filed: 2018-01-16
- Granted: 2019-06-11
- Earliest claimed: 2018-01-16
- Assignees: Dell Products L.P.
- Applicants: Dell Products, LP
- Inventors: Suresh K. Ramasamy; Stephen Shiao
- Web page: https://patentgrep.com/patent/US10321463B1

## CPC

- H04W 72/51: based on terminal or device properties
- H04B 7/0617: {for beam forming}
- H04W 72/542: using measured or perceived quality
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

A wireless adapter front end for an information handling system may comprise a wireless adapter for receiving content via a transceiving antenna configurable to have a plurality of antenna radiation patterns, and a controller. The controller may execute code instructions to receive a trigger input indicating decreased signal strength, measure RSSI variance of the wireless link, measure a rate of mobility of the information handling system determined from accelerometer data or velocity data, identify an allotted training duration time period associated with the rate of mobility and RSSI variance, identify an optimal antenna pattern associated with a highest quality link within the allotted training duration time period, and instruct the transceiving antenna to operate according to the optimal antenna pattern.

## Claims

### Claim 1

A wireless adapter front end for an information handling system comprising:
a wireless adapter for communicating content on a transceiving antenna via a wireless link, wherein the transceiving antenna is configurable to have a plurality of antenna radiation patterns;
a controller executing instructions of a heuristic antenna pattern selection system to:
receive a trigger input indicating decreased signal strength;
receive a measurement of RSSI variance of the wireless link;
receive a measurement of a rate of mobility of the information handling system, wherein the rate of mobility is determined from accelerometer data or velocity data;
determine an allotted training duration time period based on the received measurement of RSSI variance of the wireless link and the received measurement of the rate of geographic movement of the information handling system;
identify an optimal antenna pattern associated with a highest quality link performance indicator within the identified training duration time period; and
instruct the transceiving antenna to operate according to the optimal antenna pattern.

### Claim 2 (depends on 1)

The wireless adapter front end of claim 1, wherein the trigger input indicates a change in positional configuration.

### Claim 3 (depends on 1)

The wireless adapter front end of claim 1 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at less than one second if the received measurement of the rate of mobility of the information handling system indicates a high-mobility state.

### Claim 4 (depends on 3)

The wireless adapter front end of claim 3, wherein the received measurement of the rate of mobility of the information handling system is equal to or greater than three miles per hour and indicates a high-mobility state.

### Claim 5 (depends on 1)

The wireless adapter front end of claim 1 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at less than two seconds if the received measurement of the rate of mobility of the information handling system indicates a low-mobility state.

### Claim 6 (depends on 5)

The wireless adapter front end of claim 5, wherein the received measurement of the rate of mobility of the information handling system is equal to or lesser than 1.5 miles per hour and indicates a low-mobility state.

### Claim 7 (depends on 1)

The wireless adapter front end of claim 1 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at ten seconds if the received measurement of the rate of mobility of the information handling system is zero.

### Claim 8

A method for determining an optimal antenna radiation pattern comprising:
communicating content on a transceiving antenna configurable to have a plurality of antenna radiation patterns via a wireless link;
receiving a trigger input indicating decreased signal strength;
receiving a measurement of a rate of mobility of the information handling system, wherein the rate of mobility is determined from accelerometer data or velocity data;
capping an allotted training duration time period based on the received measurement of the rate of mobility of the information handling system;
identifying an optimal antenna pattern associated with a highest quality link performance indicator within the identified training duration time period; and
instructing the transceiving antenna to operate according to the optimal antenna pattern.

### Claim 9 (depends on 8)

The method for determining an optimal antenna radiation pattern of claim 8, wherein the trigger input indicates the information handling system has powered on.

### Claim 10 (depends on 8)

The method for determining an optimal antenna radiation pattern of claim 8 further comprising:
capping the allotted training duration time period at less than one second if the received measurement of the rate of mobility of the information handling system indicates a high-mobility state.

### Claim 11 (depends on 10)

The method for determining an optimal antenna radiation pattern of claim 10, wherein the received measurement of the rate of mobility of the information handling system is equal to or a velocity of greater than three miles per hour and indicates a high-mobility state.

### Claim 12 (depends on 8)

The method for determining an optimal antenna radiation pattern of claim 8 further comprising:
capping the allotted training duration time period at less than two seconds if the received measurement of the rate of mobility of the information handling system indicates a low-mobility state.

### Claim 13 (depends on 12)

The method for determining an optimal antenna radiation pattern of claim 12, wherein the received measurement of the rate of mobility of the information handling system is equal to or lesser than 1.5 miles per hour and indicates a low-mobility state.

### Claim 14 (depends on 8)

The method for determining an optimal antenna radiation pattern of claim 8 further comprising:
capping the allotted training duration time period at ten seconds if the received measurement of the rate of geographic movement of the information handling system is zero.

### Claim 15

A wireless adapter front end for an information handling system comprising:
a wireless adapter for communicating content on a transceiving antenna via a wireless link, wherein the transceiving antenna is configurable to have a plurality of antenna radiation patterns;
a controller executing instructions of a heuristic antenna pattern selection system to:
receive a trigger input indicating decreased signal strength, a change in positional configuration, or the information handling system has powered on;
receive a measurement of a rate of mobility of the information handling system, wherein the rate of mobility is determined from accelerometer data or velocity data;
capping an allotted training duration time period based on the received measurement of the rate of mobility of the information handling system;
identify an optimal antenna pattern associated with a highest quality link performance indicator within the identified training duration time period; and
instruct the transceiving antenna to operate according to the optimal antenna pattern.

### Claim 16 (depends on 15)

The wireless adapter front end of claim 15 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at less than one second if the received measurement of the rate of mobility of the information handling system indicates a high-mobility state.

### Claim 17 (depends on 16)

The wireless adapter front end of claim 16, wherein the received measurement of the rate of mobility of the information handling system is equal to or greater than three miles per hour and indicates a high-mobility state.

### Claim 18 (depends on 15)

The wireless adapter front end of claim 15 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at less than two seconds if the received measurement of the rate of mobility of the information handling system indicates a low-mobility state.

### Claim 19 (depends on 18)

The wireless adapter front end of claim 18, wherein the received measurement of the rate of mobility of the information handling system is equal to or less than a threshold level of acceleration events and indicates a low-mobility state.

### Claim 20 (depends on 15)

The wireless adapter front end of claim 15 further comprising:
the controller executing instructions of a heuristic antenna pattern selection system to:
cap the allotted training duration time period at ten seconds if the received measurement of the rate of mobility of the information handling system is zero.
