Power efficient communications

• US 9,198,134 B2
• Filed: 10/11/2012
• Issued: 11/24/2015
• Est. Priority Date: 03/12/2010
• Status: Active Grant

• Current Assignee: Sunrise Micro Devices, Inc. (SoftBank Group Corp.)
• Original Assignee: Sunrise Micro Devices, Inc. (SoftBank Group Corp.)
• Inventors: Callaway, Edgar H. Jr., Gorday, Paul E.
• Primary Examiner(s): Nguyen, Hai V
• Application Number:
  US13/649,816
• Publication Number:
  US 20130035043A1
• Time in Patent Office: 1,139 Days
• Field of Search: 455/73, 455/574, 455/127.5, 370/318
• US Class Current: 1/1
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04L 27/2614 Peak power aspects
• CPC Class Codes: H04L 47/748 Negotiation of resources, e.g. modification of a request
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 52/0261 managing power supply demand, e.g. depending on battery level
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method, system, and device provide power-efficient communications within the context of available power. Transmission and receipt data rates are scalable in accordance with output power available from a power source. Data is transmitted at a data rate determined, at least in part, by the available output power.

Claims

1. A power-efficient communication device, comprising:

a transmitter with a data transmission rate determined, at least in part, by output power from an electrical power source that is available to the transmitter, wherein the electrical power source is a power source with a defined power and energy characteristic in which a peak power sourcing ability of the electrical power source is limited while an amount of energy the electrical power source can source is indefinitely large, and

wherein the transmitter in operation minimizes a ratio of peak-to-average power consumption of available output power from the electrical power source used in transmitting data in order to maximize energy consumption of the available output power from the electrical power source per unit time.

2. The device of claim 1, wherein the data transmission rate is determined such that a transmission range of the transmitter is constant as the available output power varies.

3. The device of claim 1, wherein the device is a transceiver further comprising:

a receiver operable to receive data at a data reception rate determined, at least in part, by the output power available from the electrical power source.

4. A method of power-efficient communications, comprising:

determining an available output power of an electrical power source that is available for operation; and

transmitting data at a data transmission rate determined, at least in part, by the available output power,

wherein the electrical power source is a power source with a defined power and energy characteristic in which a peak power sourcing ability of the electrical power source is limited while an amount of energy the electrical power source can source is indefinitely large, and wherein in transmitting data a ratio of peak-to-average power consumption of available output power from the electrical power source used in transmitting data is minimized in order to maximize energy consumption of the available output power from the electrical power source per unit time.