Antenna configuration change based on charging pad coupling

• US 10,348,117 B2
• Filed: 10/01/2015
• Issued: 07/09/2019
• Est. Priority Date: 10/01/2015
• Status: Active Grant

• Current Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Winkler, David A., Ballantyne, Wayne, Krenz, Eric L.
• Primary Examiner(s): Shiue, Dong-Chang
• Application Number:
  US14/872,725
• Publication Number:
  US 20170098953A1
• Time in Patent Office: 1,377 Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04B 7/0617 for beam forming

Abstract

An apparatus, such as a user device, can comprise a battery, a plurality of antennas, a transceiver, a charging pad interface, and a controller. The battery can be configured to power the user device. The plurality of antennas can be configured to send and receive signals to and from a wireless node. The transceiver can be configured to communicate, via the plurality of antennas, with the wireless node. The charging pad interface can be configured to detect that the apparatus is coupled to a charging pad and to receive charging power from the charging pad. The controller can be configured to change a configuration of at least one antenna from the plurality of antennas in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

Claims

1. An apparatus, comprising:

a battery that powers the apparatus;

a plurality of antennas that send and receive signals to and from an externally deployed wireless area network node using mmWave bands;

a transceiver that communicates, via the plurality of antennas, with the externally deployed wireless area network node using mmWave bands;

a charging pad interface that detects that the apparatus is coupled to a charging pad and receive charging power from the charging pad; and

a controller that obtains a location of the externally deployed wireless area network node and changes a configuration of at least one antenna from the plurality of antennas based on the obtained location and in response to the charging pad interface detecting that the apparatus is coupled to the charging pad,

wherein the controller changes the configuration of the at least one antenna from the plurality of antennas by applying beamforming to the at least one antenna from the plurality of antennas to communicate with the externally deployed wireless area network node based on the obtained location of the externally deployed wireless area network node and in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

2. The apparatus according to claim 1, wherein the controller changes the configuration of the at least one antenna from the plurality of antennas by disabling the at least one antenna from the plurality of antennas in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

3. The apparatus according to claim 1, wherein the controller changes the configuration of the at least one antenna from the plurality of antennas by switching from communicating with the externally deployed wireless area network node to communicate with a local communication network in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

4. The apparatus according to claim 3, wherein the controller communicates with the local communication network via the charging pad.

5. The apparatus according to claim 1, further comprising:

a digital compass that determines an orientation of the apparatus when the apparatus is coupled to the charging pad,

wherein the controller changes the configuration of the at least one antenna from the plurality of antennas by disabling the at least one antenna and applying beamforming to at least one remaining antenna based on the orientation of the apparatus when the apparatus is coupled to the charging pad.

6. The apparatus according to claim 1, wherein the controller applies initial beamforming, when the apparatus is coupled to the charging pad, to the at least one antenna from the plurality of antennas to communicate with the externally deployed wireless area network node based a unique identifier associated with the charging pad and wherein the location is an a priori location of the externally deployed wireless area network node.

7. The apparatus according to claim 1, wherein the charging pad interface receives a charging pad unique identifier from the charging pad and associated with the charging pad, and

wherein the transceiver applies beamforming to the at least one antenna to communicate with the externally deployed wireless area network node based on the charging pad unique identifier.

8. The apparatus according to claim 1, wherein the apparatus is a portable wireless communication device.

9. The apparatus according to claim 1, wherein the externally deployed wireless area network node comprises a base station.

10. A method, comprising:

powering an apparatus with a battery;

sending and receiving, via a plurality of antennas, signals to and from an externally deployed wireless area network node using mmWave bands;

communicating, via a transceiver and the plurality of antennas, with the externally deployed wireless area network node;

detecting, with a charging pad interface, that the apparatus is coupled to a charging pad and receiving charging power from the charging pad;

obtaining, with a controller, a location of the externally deployed wireless area network node; and

changing, with the controller, a configuration of at least one antenna from the plurality of antennas based on the obtained location of the externally deployed wireless area network node and in response to the charging pad interface detecting that the apparatus is coupled to the charging pad,

wherein the change in the configuration, by the controller, of the at least one antenna from the plurality of antennas includes applying beamforming to the at least one antenna to communicate with the externally deployed wireless area network node based on the obtained location of the externally deployed wireless area network node and in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

11. The method according to claim 10, wherein the change in the configuration, by the controller, of the at least one antenna from the plurality of antennas includes disabling the at least one antenna in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

12. The method according to claim 10, wherein the change in the configuration, by the controller, of the at least one antenna from the plurality of antennas includes switching from communicating with the externally deployed wireless area network node to communicating with a local communication network in response to the charging pad interface detecting that the apparatus is coupled to the charging pad.

13. The method according to claim 12, further comprising communicating, with the controller, with the local communication network via the charging pad.

14. The method according to claim 10, further comprising:

determining, with a digital compass, an orientation of the apparatus when the apparatus is coupled to the charging pad,

wherein the change in the configuration, by the controller, of the at least one antenna from the plurality of antennas includes disabling the at least one antenna from the plurality of antennas and applying beamforming to at least one remaining antenna based on the orientation of the apparatus when the apparatus is coupled to the charging pad.

15. The method according to claim 10, further comprising applying, with the controller, initial beamforming, when the apparatus is coupled to the charging pad, to the at least one antenna from the plurality of antennas to communicate with the externally deployed wireless area network node based a unique identifier associated with the charging pad, wherein the location is an a priori location of the externally deployed wireless area network node.

16. The method according to claim 10, further comprising:

receiving, with the charging pad interface, a charging pad unique identifier from the charging pad and associated with the charging pad; and

applying beamforming, with the transceiver, to the at least one antenna from the plurality of antennas to communicate with the externally deployed wireless area network node based on the charging pad unique identifier.

17. The method according to claim 10, wherein the externally deployed wireless area network node comprises a base station.

18. An apparatus, comprising:

a plurality of antennas that send and receive signals to and from a user device using mmWave bands;

a wireless area network transceiver that communicates, via the plurality of antennas, with the user device using mmWave bands; and

a controller that obtains a location of the externally deployed wireless area network node and changes a configuration of at least one antenna from the plurality of antennas based on the obtained location and in response to the apparatus detecting that the user device is coupled to a charging pad,

wherein the controller changes the configuration of the at least one antenna from the plurality of antennas by applying beamforming to the at least one antenna to communicate with the user device based on the obtained location of the externally deployed wireless area network node and in response to the apparatus detecting that the user device is coupled to the charging pad.

19. The apparatus according to claim 18, wherein the wireless area network transceiver receives a geographic location of the charging pad, and

wherein the controller at least one of optimizes selection of at least one wireless node to service the user device and reduces a paging block size based on the geographic location of the charging pad.

20. The apparatus according to claim 18, wherein the apparatus determines a location of the user device in response to the apparatus detecting that the user device is coupled to the charging pad.

21. The apparatus according to claim 18, wherein the controller determines a plurality of weights that are applied to beamforming when the wireless area network transceiver communicates with the user device and in response to the apparatus detecting that the user device is coupled to the charging pad, and

wherein the controller determines the location of the user device from the determined plurality of weights that are applied to beamforming when the wireless area network transceiver communicates with the user device and from previously determined additional plurality of weights that are applied to beamforming when the wireless area network transceiver previously communicated with other user devices.

22. The apparatus according to claim 18, wherein the controller applies initial beamforming, when the user device is coupled to the charging pad, to the at least one antenna from the plurality of antennas based a unique identifier associated with an a priori location of the charging pad.

23. The apparatus according to claim 18, wherein the apparatus comprises a base station.