System and method for a modular dynamic wireless power control system in a convertible information handling system

• US 10,218,403 B2
• Filed: 07/30/2017
• Issued: 02/26/2019
• Est. Priority Date: 07/30/2017
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Koshy, Kamal J., Bologna, Benny J., Chang, Ching Wei, Grobelny, Nicholas D., Tan, Geroncio O.
• Primary Examiner(s): Maung, Nay A
• Assistant Examiner(s): Fleming-Hall, Erica L
• Application Number:
  US15/663,766
• Publication Number:
  US 20190036563A1
• Time in Patent Office: 576 Days
• CPC Class Codes: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/281 taking into account user or data type priority
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A system and method operating a convertible information handling system comprising a processor executing code instructions for a modular dynamic wireless power control system for detecting an active wireless link operating via an antenna system and a first orientation mode, wherein the transmission power of the antenna system is limited to a regulatory safety maximum depending on orientation, the processor determining the permitted regulatory safety maximum transmission power for the first orientation mode for the information handling system and the processor determining relative transmission activity levels for the information handling system relative to the first active wireless link and the second active wireless link, including a first wireless link data rate transmission level for the first antenna system and a second wireless link data rate transmission level for the second antenna system. The modular dynamic wireless power control system instructing the wireless interface adapter controller to increase transmission power to the first antenna and decrease transmission power to the second antenna relative to the regulatory safety maximum power level when the first wireless link data rate transmission level is greater than the second wireless link data rate transmission level.

Claims

1. A convertible information handling system comprising:

a wireless adapter for communicating on an antenna system;

a processor executing code instructions for a modular dynamic wireless power control system for detecting an active wireless link operating via a first antenna system and a first orientation mode, wherein the transmission power of the first antenna system is limited to a regulatory safety maximum depending on orientation;

the processor determining the permitted regulatory safety maximum transmission power for the first orientation mode for the information handling system;

the processor determining relative transmission activity levels for the information handling system relative to the first active wireless link and the second active wireless link, including a first wireless link data rate transmission level for the first antenna system and a second wireless link data rate transmission level for a second antenna system; and

the modular dynamic wireless power control system instructing the wireless interface adapter controller to increase transmission power to the first antenna and decrease transmission power to the second antenna relative to the regulatory safety maximum power level when the first wireless link data rate transmission level is greater than the second wireless link data rate transmission level.

2. The information handling system of claim 1, further comprising:

the processor detecting a change in orientation to a second orientation mode; and

the modular dynamic wireless power control system instructing the wireless adapter controller to decrease the permitted regulatory safety maximum transmission power to that associated with the second orientation mode upon detecting the second orientation mode, wherein the second orientation mode is a tablet mode.

3. The information handling system of claim 1, wherein the convertible information handling system has a 360 degree hinge.

4. The information handling system of claim 1, further comprising:

the modular dynamic wireless power control system detecting an undocking of a tablet head of the information handling system from a tablet base; and

the modular dynamic wireless power control system instructing the wireless adapter controller to decrease transmission power to the antenna system to the permitted regulatory safety maximum transmission power for a tablet upon detecting the undocked tablet head.

5. The information handling system of claim 1, further comprising:

a sensor hub detecting orientation of a tablet head and a tablet base of the reconfigurable information handling system relative to one another to determine the first orientation mode.

6. The information handling system of claim 1, further comprising:

a sensor hub detecting orientation of a tablet head and a tablet base of the reconfigurable information handling system relative to one another to determine the second orientation mode.

7. The information handling system of claim 1, further comprising:

a sensor hub and a plurality of sensors including an orientation sensor.

8. A computer implemented method comprising:

executing code instructions, via a processor in a convertible information handling system, for a modular dynamic wireless power control system for detecting an active wireless link operating via a first antenna system and a first orientation mode, wherein the transmission power of the first antenna system is limited to a regulatory safety maximum depending on orientation;

detecting a change in orientation to a second orientation mode;

determining the permitted regulatory safety maximum transmission power for the second orientation mode that is lower than permitted regulatory safety maximum transmission power for other orientation modes via the modular dynamic wireless power control system;

instructing a wireless adapter controller to decrease the permitted regulatory safety maximum transmission power for the second orientation mode upon detecting the second orientation mode, wherein the second orientation mode is a tablet mode;

determining a plurality of wireless link data rate transmission levels for transmission via each of a first active wireless link and a second active wireless link; and

dynamically adjusting the transmission power between the first antenna system and a second, co-located antenna system relative to the regulatory safety maximum power level based a ratio between the wireless link data rate transmission levels for transmission via each of the first active wireless link and the second active wireless link.

9. The method of claim 8, wherein the second orientation mode is a tablet mode.

10. The method of claim 8, wherein the second orientation mode is an undocked tablet head from a tablet base of the convertible information handling system.

11. The method of claim 8, further comprising:

dynamically adjusting regulatory safety maximum power level based on changes in the orientation mode between the second orientation mode and other orientation modes including the first orientation mode.

12. The method of claim 8, further comprising:

monitoring the plurality of wireless link data rate transmission levels for transmission via each of the first active wireless link, the second active wireless link, and one or more additional active wireless links corresponding changes in the ratio between wireless link data rate transmission levels for the first active wireless link, the second active wireless link, and the one or more additional active wireless links.

13. The method of claim 8, further comprising:

accessing a cutback table of permitted power levels in co-location operation modes between the first active wireless link and the second active wireless link to determine permitted power levels at each of the first antenna system and the second, co-located antenna system.

14. The method of claim 8, further comprising:

detecting a change in orientation to the first orientation mode;

instructing the wireless adapter controller to increase the permitted regulatory safety maximum transmission power to that corresponding to the first orientation mode.

15. The method of claim 8, wherein the orientation modes include a laptop mode, a tablet mode, a tent mode, and an easel mode.

16. A convertible information handling system comprising:

a wireless adapter for communicating on an antenna system;

a processor executing code instructions for a modular dynamic wireless power control system for detecting a plurality of active wireless links operating via a plurality of antenna systems co-located on the convertible information handling system, wherein the total transmission power of the plurality of antenna systems is limited to a regulatory safety maximum depending on orientation;

the processor determining the permitted regulatory safety maximum transmission power for the first orientation mode for the information handling system;

the processor determining a simultaneous transmit configuration mode and wireless link data rate transmission levels for the plurality of active wireless links and accessing a cutback table of permitted power levels for the simultaneous transmit configuration mode; and

the wireless interface adapter dynamically adjusting the transmission power between the plurality of antenna systems co-located on the information handling system relative to the regulatory safety maximum power level based on the cutback table of permitted power levels.

17. The information handling system of claim 16, further comprising:

the processor monitoring for changes in wireless link data rate transmission levels or active wireless links and accessing a cutback table of permitted power levels for the corresponding simultaneous transmit configuration mode in response.

18. The information handling system of claim 16, further comprising:

the processor detecting a change in orientation to a second orientation mode;

the modular dynamic wireless power control system instructing the wireless adapter controller to decrease the permitted regulatory safety maximum transmission power for the second orientation mode upon detecting the second orientation mode, wherein the second orientation mode is a tablet mode.

19. The information handling system of claim 16, further comprising:

the processor detecting a user proximity via a proximity detector near one of the plurality of wireless links and instructing the wireless adapter controller to decrease the permitted regulatory safety maximum transmission power for the plurality of wireless links.

20. The wireless adapter front end of claim 16, further comprising:

the processor detecting a user proximity via a proximity detector near one of the plurality of wireless links and dynamically adjusting the transmission power to the other of the plurality of antenna systems co-located on the information handling system relative to the regulatory safety maximum power level based on the cutback table of permitted power levels.