Controlling multiple-input and multiple-output operation of a communication device when the device is attached to a battery charger

Patent metadata

Field	Value
Publication number	US-9705573-B2
Application number	US-201514734603-A
Country	US
Kind code	B2
Filing date	Jun 9, 2015
Priority date	Mar 31, 2015
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A method for controlling multiple-input and multiple-output operation in a communication device when the communication device is attached to a battery charger includes determining that a battery level of a communication device is below a first battery level threshold. The method further includes determining that the communication device is attached to a battery char and determining whether to disable multiple-input and multiple-output operation of the communication device while it is attached to the battery charger.

First claim

We claim:

1. A method comprising:
determining that a battery level of a communication device is below a first battery level threshold
while the communication device is attached to a battery charger, the communication device enabling multiple-input and multiple-output (MIMO) operation; and
determining, based on a type of the attached battery charger, whether to disable multiple-input and multiple-output operation of the communication device while the device is attached to the battery charger.

2. The method of claim 1 , wherein determining whether to disable the multiple-input and multiple-output operation comprises:
monitoring a type of charger to which the communication device is attached; and
disabling the multiple-input and multiple-output operation upon determining that the type of battery charger is a turbo charger.

3. The method of claim 2 further comprising determining, based on a battery level and a data rate, whether to re-enable multiple-input and multiple-output operation of the communication device while the communication device is attached to the turbo charger.

4. The method of claim 3 , wherein determining whether to re-enable the multiple-input and multiple-output operation comprises:
monitoring the battery level of the communication device; and
determining to re-enable the multiple-input and multiple-output operation upon determining that the battery level exceeds a second battery level threshold.

5. The method of claim 3 , wherein determining whether to re-enable the multiple-input and multiple-output operation comprises:
monitoring a set of parameters that indicate quality of service associated with communicating data to another device; and
re-enabling the multiple-input and multiple-output operation of the communication device when at least one parameter in the set of parameters falls below a corresponding threshold.

6. The method of claim 5 , wherein the set of parameters comprises at least one of bit error rate, packet error rate, packet loss, packet retransmission rate, or retransmission timer results.

7. The method of claim 6 , wherein re-enabling the multiple-input and multiple-output operation of the communication device comprises partially re-enabling the multiple-input and multiple-output operation by enabling only one path from among a transmit path and a receive path, while the device remains connected to the attached battery charger.

8. The method of claim 7 , wherein partially re-enabling the multiple-input and multiple-output operation comprises enabling a transmit path of a first transceiver path while continuing to disable a receive path of the first transceiver path when at least one of the packet retransmission rate or the retransmission timer results falls below the corresponding threshold.

9. The method of claim 7 , wherein partially re-enabling the multiple-input and multiple-output operation comprises enabling a receive path of a first transceiver path while continuing to disable a transmit path of the first transceiver path when at least one of the bit error rate, the packet error rate, or the packet loss falls below the corresponding threshold.

10. The method of claim 1 , wherein determining whether to disable the multiple-input and multiple-output operation comprises:
monitoring a charging rate and a discharge rate of a battery of the communication device; and
disabling the multiple-input and multiple-output operation upon determining that the discharge rate exceeds the charging rate.

11. The method of claim 10 , further comprising determining whether to re-enable multiple-input and multiple-output operation of the communication device while the device is attached to the battery charger, wherein determining whether to re-enable the multiple-input and multiple-output operation comprises:
monitoring the battery level of the communication device;
determining to re-enable the multiple-input and multiple-output operation upon determining that the battery level exceeds a second battery level threshold.

12. The method of claim 10 , further comprising determining whether to re-enable multiple-input and multiple-output operation of the communication device while the device is attached to the battery charger, wherein determining whether to re-enable the multiple-input and multiple-output operation comprises:
monitoring a set of parameters that indicate quality of service associated with communicating data to another device;
re-enabling the multiple-input and multiple-output operation of the communication device when at least one parameter in the set of parameters falls below a corresponding threshold.

13. The method of claim 12 , wherein the set of parameters comprises at least one of bit error rate, packet error rate, packet loss, packet retransmission rate, or retransmission timer results.

14. The method of claim 13 , wherein re-enabling the multiple-input and multiple-output operation of the communication device comprises partially re-enabling the multiple-input and multiple-output operation.

15. The method of claim 14 , wherein partially re-enabling the multiple-input and multiple-output operation comprises enabling a transmit path of a first transceiver path while continuing to disable a receive path of the first transceiver path when at least one of the packet retransmission rate or the retransmission timer results falls below the corresponding threshold.

16. The method of claim 14 , wherein partially re-enabling the multiple-input and multiple-output operation comprises enabling a receive path of a first transceiver path while continuing to disable a transmit path of the first transceiver path when at least one of the bit error rate, the packet error rate, or the packet loss falls below the corresponding threshold.

17. The method of claim 1 , further comprising:
monitoring and determining the type of battery charger using one of an identifier sent from the battery charger, a coulomb counter, and a voltage method that determines a current or voltage coming from the battery charger, wherein a current or voltage that exceeds a threshold that is set in the communication device signals that a turbo charger is attached.

18. A communication device configured to control multiple-input and multiple-output operation for communicating data, the communication device comprising:
an internal battery configured to power the communication device;
a charge adapter configured to charge the internal battery when the communication device is attached to a battery charger;
a processor coupled to at least one of the internal battery or the charge adapter, wherein the processor is configured to:
determine that a battery level of the internal battery is below a first battery level threshold;
determine that the communication device is attached to the battery charger while the battery level is below the first battery level threshold; and
determine, based on a type of the attached battery charger, whether to disable multiple-input and multiple-output operation of the communication device while the device is attached to the battery charger.

19. The communication device of claim 18 , wherein the processor is configured to determine whether to disable the multiple-input and multiple-output operation by being configured to:
monitor a type of charger to which the communication device is attached; and
disable the multiple-input and multiple-output operation upon determining that the type of battery charger is a turbo charger.

20. The communication device of claim 18 , wherein the

Assignees

• Motorola Mobility Llc

Inventors

• Braun Mark
• Gillella Santhosh Kumar
• Gupta Ranjeet
• Hor-Lao Mary
• Vissa Sudhir C

Classifications

• H04W52/02

  Power saving arrangements · CPC title

• H04B7/0413 Primary

  MIMO systems · CPC title