Antenna configuration change based on charging pad coupling

Patent metadata

Field	Value
Publication number	US-10348117-B2
Application number	US-201514872725-A
Country	US
Kind code	B2
Filing date	Oct 1, 2015
Priority date	Oct 1, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

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.

First claim

We claim:

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

Assignees

• Motorola Mobility Llc

Inventors

• Winkler David A
• Ballantyne Wayne
• Krenz Eric L

Classifications

• H04B7/0617

  for beam forming · CPC title

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J50/10 Primary

  using inductive coupling · CPC title

• H02J7/025 Primary

  Electricity · mapped topic

• H02J7/00

  Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title