Operation mode adaptation based on hardware and channel condition constraints

• US 9,474,075 B2
• Filed: 03/28/2014
• Issued: 10/18/2016
• Est. Priority Date: 03/28/2014
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Yavuz, Mehmet, Patel, Chirag Sureshbhai, Kadous, Tamer Adel, Chande, Vinay
• Primary Examiner(s): Pham, Chi H
• Assistant Examiner(s): Rivas, Raul
• Application Number:
  US14/229,642
• Publication Number:
  US 20150282154A1
• Time in Patent Office: 935 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0426 Power distribution
• CPC Class Codes: H04W 28/0221 power availability or consumption
• CPC Class Codes: H04W 52/0238 where the received signal is an unwanted signal, e.g. interference or idle signal
• CPC Class Codes: H04W 52/0245 according to signal strength
• CPC Class Codes: H04W 52/0277 according to available power supply, e.g. switching off when a low battery condition is detected
• CPC Class Codes: H04W 52/028 switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A system and method for operation mode adaptation is operable by a network entity that determines channel conditions between the network entity and a second network entity. The network entity determines its hardware constraints and power consumption requirements. The network entity balances data throughput with power consumption for the network entity by selecting a hardware allocation, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements. In some implementations, the network entity balances data throughput with power consumption for the network entity by selecting an operation mode, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements.

Claims

1. A method of wireless communication operable by a network entity, comprising:

determining a channel rank for channel conditions between the network entity and a second network entity, the channel rank being based on a number of data streams that can be supported by the channel;

determining hardware constraints for the network entity;

determining power consumption requirements for the network entity; and

balancing data throughput with power consumption for the network entity by selecting a hardware allocation, based at least in part on the channel rank conditions, the hardware constraints, and the power consumption requirements.

2. The method of claim 1, further comprising wherein determining channel conditions by comprises determining a channel capacity for a channel between the network entity and the second network entity.

3. The method of claim 1, wherein determining the hardware constraints comprises determining a number of transmit antenna chains for the network entity.

4. The method of claim 1, wherein determining the hardware constraints comprises determining transmit antenna chain power amplifier capabilities.

5. The method of claim 1, wherein determining the power consumption constraints comprises determining a current battery level.

6. The method of claim 1, wherein selecting the hardware allocation comprises allocating unequal power levels to a plurality of transmit antenna chains, in response to determining that the plurality of transmit antenna chains have differing power amplifier capabilities.

7. The method of claim 1, wherein selecting the hardware allocation comprises disabling at least one transmit antenna chain.

8. The method of claim 7, wherein disabling the at least one transmit antenna chain is in response to determining a current battery level to be low.

9. The method of claim 7, further comprising periodically re-enabling a disabled transmit antenna chain for channel estimation or switching to a higher rank.

10. The method of claim 1, wherein selecting the hardware allocation comprises reallocating at least one transmit antenna chain from Wi-Fi use to Long Term Evolution (LTE) use or reallocating at least one transmit antenna chain from LTE use to Wi-Fi use.

11. The method of claim 1, wherein the network entity comprises an access terminal.

12. The method of claim 1, wherein the network entity comprises an access point.

13. A computer program product, comprising:

a non-transitory computer-readable medium comprising;

code for determining a channel rank for channel conditions between the network entity and a second network entity, the channel rank being based on a number of data streams that can be supported by the channel;

code for determining hardware constraints for the network entity;

code for determining power consumption requirements for the network entity; and

code for balancing data throughput with power consumption for the network entity by selecting a hardware allocation, based at least in part on the channel rank conditions, the hardware constraints, and the power consumption requirements.

14. The computer program product of claim 13, wherein the code for determining the hardware constraints comprises code for determining transmit antenna chain power amplifier capabilities.

15. The computer program product of claim 13, wherein the code for selecting the hardware allocation comprises code for allocating unequal power levels to a plurality of transmit antenna chains, in response to determining that a plurality of transmit antenna chains have differing power amplifier capabilities.

16. The computer program product of claim 13, wherein the code for selecting the hardware allocation comprises code for disabling at least one transmit antenna chain.

17. A wireless communication apparatus, comprising:

means for determining a channel rank for channel conditions for a communication channel between the network entity and a second network entity, the channel rank being based on a number of data streams that can be supported by the channel;

means for determining hardware constraints for the network entity;

means for determining power consumption requirements for the network entity; and

means for balancing data throughput with power consumption for the network entity by selecting an operation mode, based at least in part on the channel rank conditions, the hardware constraints, and the power consumption requirements, wherein selecting the operation mode comprises (1) selecting one of a single-input single-output (SISO) mode, a single-input multiple-output (SIMO) mode, or a multiple-input multiple-output (MIMO) mode, and (2) selecting one of a carrier aggregation (CA) enabled mode or a CA disabled mode.

18. The apparatus of claim 17, further comprising wherein means for determining channel conditions comprises means for by determining a channel capacity for a channel between the network entity and the second network entity.

19. The apparatus of claim 17, wherein means for determining the hardware constraints comprises means for determining a number of transmit antenna chains for the network entity.

20. The apparatus of claim 17, wherein means for determining the hardware constraints comprises means for determining transmit antenna chain power amplifier capabilities.

21. The apparatus of claim 17, wherein means for determining the power consumption constraints comprises means for determining a current battery level.

22. The apparatus of claim 18, wherein means for selecting the operation mode comprises means for selecting the SISO mode and the CA enabled mode, in response to determining the channel capacity to be rank 1.

23. The apparatus of claim 17, wherein means for selecting the operation mode comprises means for selecting the MIMO mode in response to determining the channel capacity to be greater than rank 1.

24. The apparatus of claim 17, wherein means for selecting the operation mode is further based on means for determining a number of receive antenna chains for the second network entity.

25. The apparatus of claim 17, wherein means for selecting one of the SISO mode, the SIMO mode, or the MIMO mode is further based on means for determining a number of receive antenna chains for the second network entity.

26. A wireless communication apparatus, comprising:

at least one processor configured to;

determine a channel rank for channel conditions for a communication channel between the network entity and a second network entity, the channel rank being based on a number of data streams that can be supported by the communication channel;

determine hardware constraints for the network entity;

determine power consumption requirements for the network entity; and

balance data throughput with power consumption for the network entity in which an operation mode is selected based, at least in part, on the channel rank conditions, the hardware constraints, and the power consumption requirements, wherein the selection of the operation mode comprises (1) a selection of one of a single-input single-output (SISO) mode, a single-input multiple-output (SIMO) mode, or a multiple-input multiple-output (MIMO) mode, and (2) a selection of one of a carrier aggregation (CA) enabled mode or a CA disabled mode; and

a radio frequency (RF) transceiver capable of communicating with the second network entity.

27. The apparatus of claim 26, wherein the processor is configured to select the SISO mode and the carrier aggregation (CA) enabled mode in response to a determination that the channel capacity is rank 1.