Method and apparatus for dynamic tuning

Patent metadata

Field	Value
Publication number	US-10128885-B2
Application number	US-201615218752-A
Country	US
Kind code	B2
Filing date	Jul 25, 2016
Priority date	Jul 25, 2016
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A system that incorporates teachings of the subject disclosure may include, for example, adjusting a matching network utilizing a first tuning state resulting in a first tuning where the first tuning state is selected from among a first group of predetermined tuning states that increase performance in duplex operation, and responsive to a comparison of a first performance metric with a first reference metric, determining a weighted first tuning state and adjusting the matching network utilizing the weighted first tuning state resulting in a second tuning, where the weighted first tuning state is determined based on a weighting factor, the first tuning state, and a second tuning state selected from a second group of predetermined tuning states. Other embodiments are disclosed.

First claim

What is claimed is:

1. A communication device, comprising:
a matching network including a tunable reactive element;
a processing system including a processor, the processing system being coupled with the matching network; and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, comprising:
during Frequency Division Duplex (FDD) communication, selecting a first tuning state from a group of tuning states stored in the memory, the group of tuning states being predetermined tuning states based on increasing performance in duplex operation;
adjusting the matching network utilizing the first tuning state resulting in a first tuning;
responsive to the first tuning, determining a first performance metric according to a first measurement associated with the FDD communication;
comparing the first performance metric to a first reference metric that is stored in the memory resulting in a first comparison; and
responsive to a first determination that the first performance metric satisfies a first threshold according to the first comparison, determining a weighted first tuning state and adjusting the matching network utilizing the weighted first tuning state resulting in a second tuning,
wherein the weighted first tuning state is determined based on a weighting factor, the first tuning state, and a second tuning state selected from another group of tuning states stored in the memory.

2. The communication device of claim 1 , wherein the operations further comprise:
responsive to a second determination that the first performance metric does not satisfy the first threshold according to the first comparison, selecting a third tuning state from the group of tuning states.

3. The communication device of claim 2 , wherein the operations further comprise:
responsive to the second tuning, determining a second performance metric according to a second measurement associated with the FDD communication;
comparing the second performance metric to a second reference metric resulting in a second comparison;
responsive to a third determination that the second performance metric does not satisfy a second threshold according to the second comparison, selecting the third tuning state from the group of tuning states; and
responsive to a fourth determination that the second performance metric satisfies the second threshold according to the second comparison, continuing the second tuning.

4. The communication device of claim 3 , wherein the second tuning state is selected from the other group of tuning states according to the first tuning state, the other group of tuning states being predetermined tuning states based on increasing performance in at least one of transmit or receive operation.

5. The communication device of claim 1 , wherein the first performance metric comprises an input reflection coefficient.

6. The communication device of claim 1 , wherein the weighting factor is determined based on an operational function of the communication device.

7. The communication device of claim 6 , wherein the operational function comprises downloading an amount of data above a download threshold, and wherein the weighting factor is biased towards a receive operation.

8. The communication device of claim 6 , wherein the operational function comprises transmitting an amount of data above an upload threshold, and wherein the weighting factor is biased towards a transmit operation.

9. The communication device of claim 6 , wherein the operations further comprise:
monitoring a transmit power level; and
determining a link margin based on the monitoring,
wherein the operational function comprises a determination that the link margin is equal to or below a link margin threshold, and wherein the weighting factor is biased towards a transmit operation.

10. The communication device of claim 6 , wherein the operations further comprise:
monitoring a receive metric associated with a received signal during the FDD communication; and
determining a link margin based on the monitoring,
wherein the operational function comprises a determination that the link margin is equal to or below a link margin threshold, and wherein the weighting factor is biased towards a receive operation.

11. The communication device of claim 6 , wherein the operations further comprise monitoring resource block allocation for the FDD communication, and wherein the operational function is determined based on the monitoring.

12. The communication device of claim 6 , wherein the operations further comprise monitoring data throughput for the FDD communication, and wherein the operational function is determined based on the monitoring.

13. The communication device of claim 6 , wherein the operations further comprise monitoring battery level during the FDD communication, and wherein the operational function is determined based on the monitoring.

14. The communication device of claim 6 , wherein the operational function of the communication device comprises a particular application being executed at the communication device.

15. The communication device of claim 1 , wherein the other group of tuning states comprises predetermined tuning states based on increasing performance in transmit operation and in receive operation.

16. The communication device of claim 1 , wherein the first tuning state comprises a tuning voltage, and wherein the tunable reactive element comprises a voltage tunable capacitor.

17. A method comprising:
adjusting, by a processor of a communication device, a matching network utilizing a first tuning state resulting in a first tuning, wherein the first tuning state is selected from among a first group of predetermined tuning states that increase performance in duplex operation; and
responsive to a comparison of a first performance metric with a first reference metric, determining, by the processor, a weighted first tuning state and adjusting the matching network utilizing the weighted first tuning state resulting in a second tuning, wherein the weighted first tuning state is determined based on a weighting factor, the first tuning state, and a second tuning state selected from a second group of predetermined tuning states.

18. The method of claim 17 , wherein the second group of predetermined tuning states increases performance in receive operation, transmit operation, carrier aggregation operation, or a combination thereof, and further comprising:
responsive to a comparison of a second performance metric with a second reference metric, continuing the second tuning,
wherein the second performance metric comprises an input reflection coefficient that is obtained after the second tuning.

19. A non-transitory machine-readable storage medium, comprising executable instructions that, when executed by a processor of a communication device, facilitate performance of operations, comprising:
adjusting a matching network of the communication device utilizing a first tuning state resulting in a first tuning, wherein the first tuning state is selected from among a first group of predetermined tuning states that increase performance in duplex operation; and
responsive to a comparison of a first performance metric with a first reference metric, determining a weighted first tuning state and adjusting the matching network utilizing the weighted first tuning state resulting in a second tuning, wherein the weighted first tuning state is determined based on a weighting factor, the first tuning state, and a second tuning stat

Assignees

• Blackberry Ltd

Inventors

• Greene Matthew Russell
• Schlueter David Michael

Classifications

• H04B17/309

  Measuring or estimating channel quality parameters · CPC title

• H04B7/0615

  of weighted versions of same signal · CPC title

• H04L5/14

  Two-way operation using the same type of signal, i.e. duplex · CPC title

• H04B1/0458

  Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages (matching circuits in general H03H) · CPC title

• H04B1/18 Primary

  Input circuits, e.g. for coupling to an antenna or a transmission line (coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H) · CPC title