System and method for operating an antenna adaptation controller module
A wireless adapter front end system and method for an information handling system including a wireless adapter for communicating on a plurality antenna systems for connection to a plurality of wireless links and an antenna configurable to have a plurality of antenna radiation patterns via an antenna pattern steering control interface, wherein the antenna is operating in a first antenna radiation pattern. An antenna adaptation controller executing code instructions for steering the antenna radiation pattern based upon a plurality of antenna trigger inputs, wherein the antenna trigger inputs include WLAN signal state feedback data and information handling system physical configuration data for configuration of the antenna system relative to a display screen and base housing of the information handling system, the antenna adaptation controller receiving the antenna trigger inputs and selecting a second antenna radiation pattern for comparing a WLAN radio link signal levels of the second antenna radiation pattern to the first antenna radiation pattern, and the antenna adaptation controller setting the second antenna radiation pattern as the highest if the WLAN radio link signal level of the second antenna radiation pattern is greater than the WLAN radio link signal level of the first antenna radiation pattern.
1. A wireless adapter front end for an information handling system comprising:
the information handling system having a display screen housing hinged to a base housing having a processor, memory, and power source;
a wireless adapter for communicating on a plurality antenna systems for connection to a plurality of wireless links;
an antenna configured to have a plurality of antenna radiation patterns via an antenna pattern steering control interface, wherein the antenna is operating in a first antenna radiation pattern;
an antenna adaptation controller executing code instructions configured to steer the antenna radiation pattern based upon a plurality of antenna trigger inputs, wherein the antenna trigger inputs include WLAN signal state feedback data and information handling system physical configuration data for configuration of the antenna system relative to the orientation of the display screen housing and the base housing of the information handling system;
the antenna adaptation controller configured to receive the antenna trigger inputs indicating the WLAN signal state and physical configuration of the antenna system relative to the orientation of the display screen and the base housing and selecting a second antenna radiation pattern for comparing WLAN radio link signal levels of the second antenna radiation pattern to the first antenna radiation pattern; and
the antenna adaptation controller configured to select the second antenna radiation pattern as the highest if the WLAN radio link signal level of the second antenna radiation pattern is greater than the WLAN radio link signal level of the first antenna radiation pattern.
2. The wireless adapter front end of claim 1 wherein the antenna pattern steering control interface is configured to adjusts power between a plurality of parasitic elements in the antenna.
3. The wireless adapter front end of claim 1 wherein the antenna pattern steering control interface is configured to adjusts phase shift in coupling to the antenna.
4. The wireless adapter front end of claim 1 , further comprising:
the antenna adaptation controller configured to receive the antenna trigger inputs and to select the second antenna radiation pattern further based on detecting a physical configuration state adjustment of the antenna system relative to the display screen and base housing of the information handling system.
5. The wireless adapter front end of claim 1 wherein the base housing of the information handling system includes a keyboard.
6. The wireless adapter front end of claim 1 wherein the base housing of the information handling system includes a second display screen.
7. The wireless adapter front end of claim 1 , further comprising:
the antenna adaptation controller configured to receive the antenna trigger inputs including an indication from a proximity sensor of a condition requiring reduced transmission power levels to maintain specific absorption rate (SAR) limits while selecting the second antenna radiation pattern.
8. The wireless adapter front end of claim 1 , further comprising:
a second antenna configured to have a plurality of antenna radiation patterns via an antenna pattern steering control interface, wherein the second antenna is configured to operate in a third antenna radiation pattern; and
the antenna adaptation controller configured to identify which antenna radiation pattern among the plurality of antenna radiation patterns has the highest WLAN radio link signal level for the second antenna.
9. A computer implemented method comprising:
polling antenna trigger inputs including a WLAN module for WLAN signal state feedback data and an embedded controller for information handling system physical configuration data;
receiving the antenna trigger inputs at a WLAN antenna adaptation controller, wherein the antenna trigger inputs include WLAN signal state feedback data and information handling system physical configuration data for configuration of the antenna system relative to a display screen and base housing of the information handling system;
steering an antenna radiation pattern of an antenna configurable to have a plurality of antenna radiation patterns via an antenna pattern steering control interface for comparison of WLAN signal levels between the plurality of antenna radiation patterns; and
selecting the antenna radiation pattern from the plurality of antenna radiation patterns with the highest WLAN radio link signal level.
10. The method of claim 9 wherein the antenna pattern steering control interface may adjust power between a plurality of parasitic elements in the antenna.
11. The method of claim 9 wherein the antenna pattern steering control interface may adjust phase shift in coupling to the antenna.
12. The method of claim 9 further comprising:
switching via the antenna adaptation controller to a second antenna if the WLAN radio link signal level of the second antenna is detected above the highest WLAN radio link signal of the antenna configurable to have a plurality of antenna radiation patterns.
13. The method of claim 9 , further comprising:
receiving the antenna trigger inputs including an indication from a proximity sensor of a condition requiring reduced transmission power levels to maintain specific absorption rate (SAR) limits; and
steering the antenna radiation pattern of an antenna configurable to have a plurality of antenna radiation patterns via an antenna pattern steering control interface further based on the reduced power transmission levels.
14. The method of claim 9 , wherein the steering the antenna radiation pattern of the antenna further implements an impedance adjustment the antenna by adjust coupling RF currents to parasitic elements of the information handling system chassis.
15. A wireless adapter front end for an information handling system comprising:
a wireless adapter for communicating on a plurality antennas;
a first antenna configured to have a plurality of antenna radiation patterns via an antenna pattern steering control interface, wherein the first antenna is configured to operate in a first antenna radiation pattern;
an antenna adaptation controller configured to poll antenna trigger inputs including a WLAN module for WLAN signal state feedback data and an embedded controller for information handling system physical configuration data of the first antenna relative to an orientation of a first housing hinged to a second housing of the information handling system;
the antenna adaptation controller configured to determine whether a WLAN radio link signal level is measured indicating a weak signal for the first antenna radiation pattern;
the antenna adaptation controller executing code instructions configured to steer among the plurality of antenna radiation patterns via an antenna pattern steering control interface and parasitic elements of the first antenna system to alter the first antenna radiation pattern;
the antenna adaptation controller executing code instructions configured to compare WLAN radio link signal levels for the plurality of antenna radiation patterns and selecting a second antenna radiation pattern having a highest WLAN radio link signal level.
16. The wireless adapter front end of claim 1 , further comprising:
the antenna adaptation controller configured to receive antenna trigger inputs including an indication from a proximity sensor of a condition requiring reduced transmission power levels to maintain specific absorption rate (SAR) limits for the first antenna.
17. The wireless adapter front end of claim 15 wherein the antenna adaptation controller is configured to poll antenna trigger inputs via I2C communication with the antenna adaptation controller or interrupt capable GPIO connections from the antenna trigger inputs to trigger I2C polling.
18. The wireless adapter front end of claim 15 , further comprising:
the antenna adaptation controller configured to steer to the second antenna radiation pattern via the antenna pattern steering control interface and configured to receive a second set of antenna trigger inputs to determine if a WLAN radio link signal level for the second antenna radiation pattern exceeds the WLAN radio link signal level for the first antenna radiation pattern.
19. The wireless adapter front end of claim 15 wherein the embedded controller is configured to transmit information handling system physical configuration data relating to usage mode configuration of a display screen housing as the first housing relative to a base housing as the second housing which may include a keyboard or a portion of the display screen, wherein the display screen is foldable across both housings.
20. The wireless adapter front end of claim 15 , further comprising:
a second antenna configured to have a plurality of antenna radiation patterns via an antenna pattern steering control interface; and
the antenna adaptation controller configured to select the highest WLAN radio link signal level for an antenna radiation pattern among the plurality of antenna radiation patterns of the second antenna to use with the antenna radiation pattern with the highest WLAN radio link signal level for the first antenna.