APPROACH FOR OPTIMIZING ENERGY CONSUMPTION OF MULTIPLE-INPUT MULTIPLE- OUTPUT SYSTEM

• US 20110038432A1
• Filed: 08/11/2009
• Published: 02/17/2011
• Est. Priority Date: 08/11/2009
• Status: Active Grant

• Current Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Original Assignee: Empire Technology Development LLC (Allied Inventors Management, LLC)
• Inventors: POTKONJAK, MIODRAG
• Granted Patent: US 8,902,797 B2
• Time in Patent Office: Days
• US Class Current: 375/260
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0251 using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 52/0261 managing power supply demand, e.g. depending on battery level
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 52/28 using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present disclosure generally relates to techniques to reduce energy consumption in a multiple-input multiple-output (MIMO) system. Some example embodiments may include collecting a set of information associated with one or more of an energy consumption, a network traffic condition, an environmental condition, and/or quality of a communication link associated with the first wireless communication device and/or the MIMO system, configuring the first wireless communication device to operate at a first reduced energy consumption level based on the collected set of information, identifying operation information associated with the first wireless communication device based upon at least the configuration of the first wireless communication device, and transmitting the operation information for reception by the second wireless communication device so that the second wireless communication device can be configured to operate at a second reduced energy consumption level based on the operation information.

Claims

1. A method for optimizing energy consumption of a multiple-input multiple-output (MIMO) system including a first wireless communication device and a second wireless communication device, the method comprising:

collecting a set of information associated with one or more of an energy consumption, a network traffic condition, an environmental condition, and/or quality of a communication link associated with the first wireless communication device and/or the MIMO system;

configuring the first wireless communication device to operate at a first reduced energy consumption level based on the collected set of information;

identifying operation information associated with the first wireless communication device based upon at least the configuration of the first wireless communication device; and

transmitting the operation information for reception by the second wireless communication device so that the second wireless communication device can be configured to operate at a second reduced energy consumption level based on the operation information.

2. The method of claim 1, wherein collecting the set of information comprises one or more of gathering information associated with the energy consumption by a first module configured to obtain static information, gathering information associated with the network traffic condition and/or the quality of communication link by a second module configured to obtain dynamic information, and/or gathering information associated with the environmental condition by a third module configured to obtain environmental information associated with the first wireless communication device and/or the MIMO system.

3. The method of claim 1, wherein configuring the first wireless communication device comprises modifying the operation information associated with the first wireless communication device by changing an operating mode for a component of the first wireless communication device to reduce energy consumption before transmitting the operation information.

4. The method of claim 2, wherein configuring the first wireless communication device comprises:

comparing a surrounding temperature condition collected by the third module based on a set of criteria including an ambient temperature to generate a comparison result; and

modifying the operation information associated with the first wireless communication device by changing an operating mode for a component of the first wireless communication device to reduce energy consumption based on the comparison result.

5. The method of claim 1, wherein configuring the first wireless communication device further comprises reducing amount of time the first wireless communication device spends in performing energy intensive tasks.

6. The method of claim 2, wherein configuring the first wireless communication device further comprises:

comparing a network traffic condition collected by the second module based on a set of criteria including network congestion to generate a comparison result; and

modifying the operation information associated with the first wireless communication device by suspending a data transmission task to reduce energy consumption based on the comparison result.

7. The method of claim 2, wherein configuring the first wireless communication device further comprises:

comparing a reception rate condition collected by the second module based on a set of criteria including a reception rate to generate a comparison result; and

modifying the operation information associated with the first wireless communication device by varying a size of a packet used to transmit data to the second wireless communication device to reduce energy consumption based on the comparison result.

8. The method of claim 2, wherein configuring the first wireless communication device further comprises:

comparing an interference condition collected by the second module based on a set of criteria including interference to generate a comparison result; and

modifying the operation information associated with the first wireless communication device by suspending a data transmission task to reduce energy consumption based on the comparison result.

9. The method of claim 1, wherein configuring the first wireless communication device further comprises modifying the operation information by compressing data before transmitting compressed data for reception by the second wireless communication device.

10. The method of claim 1, wherein configuring the first wireless communication device further comprises modifying the operation information by varying the lengths of error correction codes used to transmit data for reception by the second wireless.

11. A multiple-input multiple-output (MIMO) system, comprising:

a first wireless communication device having an energy consumption optimization module; and

a second wireless communication device coupled to the first wireless communication device via a wireless communication channel, wherein the energy consumption optimization module of the first wireless communication device is arranged to;

process a set of information associated with one or more of an energy consumption, a network traffic condition, an environmental condition, and/or quality of a communication link associated with the first wireless communication device and/or the MIMO system to identify an operating mode associated with a first reduced energy consumption level for the first wireless communication device;

configure the first wireless communication device to operate in the operating mode, and

identify operation information associated with the first wireless communication device based upon at least the configuration of the first wireless communication device; and

encode the operation information in a transmission from the first wireless communication device to the second wireless communication device so that the second wireless communication device can be configured to operate at a second reduced energy consumption level based on the operation information.

12. The MIMO system of claim 11, wherein the set of information is collected by one or more of a first module configured to obtain static information, a second module configured to obtain dynamic information, and/or a third module configured to obtain environmental information associated with the first wireless communication device and/or the MIMO system.

13. The MIMO system of claim 11, wherein the energy consumption optimization module of the first wireless communication device is further configured to modify the operation information associated with the first wireless communication device by changing a first operating mode for a first component of the first wireless communication device to reduce energy consumption, and in response to receiving the first operating mode as the operation information associated with the first wireless communication device, the second wireless communication device is further configured to change a second operating mode for a second component of the second wireless communication device to reduce energy consumption.

14. The MIMO system of claim 12, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device based on a temperature condition collected by the third module.

15. The MIMO system of claim 12, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device by suspending a data transmission task for the first wireless communication device based on a network traffic condition collected by the second module, wherein the second wireless communication device is configured to remain operating in the second reduced energy consumption level until receipt of a notification from the first wireless communication device to resume the data transmission task.

16. The MIMO system of claim 12, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device by varying a size of a packet used to transmit data to the second wireless communication device based on a reception rate condition collected by the second module.

17. The MIMO system of claim 12, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device by suspending a data transmission task for the first wireless communication device based on an interference condition collected by the second module, wherein the second wireless communication device is configured to remain operating in the second reduced energy consumption level until receipt of a notification from the first wireless communication device to resume the data transmission task.

18. The MIMO system of claim 11, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device by compressing data before the first wireless communication device transmits compressed data to the second wireless communication device while minimizing a weighted sum of a first energy required for compressing data and a second energy required for operating in a transmission mode.

19. The MIMO system of claim 11, wherein the energy consumption optimization module is further configured to modify the operation information associated with the first wireless communication device by varying lengths and/or types of error correction codes used for the first wireless communication device to transmit data to the second wireless communication device.

20. A computer readable medium containing a sequence of instructions for optimizing energy consumption for a wireless communication system having a first wireless communication device and a second wireless communication device, wherein the sequence of instructions, when executed by the first wireless communication device, causes the first wireless communication device to:

collect a set of information associated with one or more of an energy consumption, a network traffic condition, an environmental condition, and/or quality of a communication link associated with the first wireless communication device and/or the wireless communication system;

configure the first wireless communication device to operate at a first reduced energy consumption level based on the collected set of information;

identify operation information associated with the first wireless communication device based upon at least the configuration of the first wireless communication device; and

transmit the operation information for reception by the second wireless communication so that the second wireless communication device can be configured to operate at a second reduced energy consumption level based on the operation information.

21. The computer readable medium of claim 20, wherein the energy consumption information is collected by one or more of a first module configured to obtain static information, a second module configured to obtain dynamic information, and/or a third module configured to obtain environmental information associated with the first wireless communication device and/or the wireless communication system.