Dynamically varying linearity system for an RF front-end of a communication device
AssigneeSkyworks Solutions, Inc.
InventorBalasubramanian Ramachandran
Life of this patent
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Abstract
A dynamically varying linearity system “DVLS” capable of varying the linearity of a radio frequency (RF) front-end of a communication device responsive to receiving a condition signal indicating a desired mode of operation of a transmitter. The DVLS may include a condition signal indicative of the desired mode of operation and a controller that adjusts the linearity of the transmitter responsive to the condition signal. The condition signal may be responsive to a user interface. The controller, responsive to the condition signal, may dynamically adjust the operating current of the transmitter.
Claims58
A communication device having a system for dynamically varying the operating current of at least part of a multi-mode transmitter comprising:
- a mode selector for selecting a mode of operation of the multi-mode transmitter, wherein the mode selector is configured to select a mode responsive to a command received over a user interface;
- and
- a controller that adjusts the operating current of at least part of the multi-mode transmitter responsive to the mode selector, the controller further including first, second, and third sub-modules, wherein
- the first sub-module is configured to determine a base linearity responsive to the selected mode, where the base linearity is responsive to a crest factor associated with the selected mode,
- the second sub-module is configured to adjust the base linearity responsive to a desired transmit power, and
- the third sub-module is configured to determine the operating current responsive to the adjusted base linearity.
A system comprising:
- a mode selector for selecting a mode of operation of a transmitter;
- and
- a controller that adjusts the operating current of at least part of the transmitter responsive to the mode selector, wherein the controller includes first, second, and third sub-modules, wherein the first sub-module is configured to determine a base linearity responsive to the selected mode, the second sub-module is configured to adjust the base linearity responsive to a desired transmit power, and the third sub-module is configured to determine the operating current responsive to the adjusted base linearity.
A communication device having a system for dynamically varying the operating current of at least part of a multi-mode transmitter comprising:
- means for selecting a mode of operation of the multi-mode transmitter, wherein the selector means is configured to select a mode responsive to a command received over a user interface;
- and
- means for adjusting the operating current of at least part of the multi-mode transmitter responsive to the selector means, wherein the adjusting means further includes:
- means for determining a base linearity responsive to the selected mode, where the base linearity is responsive to a crest factor associated with the selected mode;
- means for adjusting the base linearity responsive to a desired transmit power;
- and
- means for determining the operating current responsive to the adjusted base linearity.
A system comprising:
- means for selecting a mode of operation of a transmitter;
- and
- means for adjusting the operating current of at least part of the transmitter responsive to the selector means, wherein the adjusting means further includes
- means for determining a base linearity responsive to the selected mode,
- means for adjusting the base linearity responsive to a desired transmit power, and
- means for determining the operating current responsive to the adjusted base linearity.
A method for dynamically varying the operating current of at least part of a transmitter, the method comprising:
- selecting a mode of operation for the transmitter;
- and
- adjusting the operating current of at least part of the transmitter in response to selecting the mode of operation;
- wherein adjusting further includes
- determining a base linearity responsive to the selected mode of operation,
- adjusting the base linearity responsive to a desired transmit power, and
- setting the operating current responsive to the adjusted base linearity.
A signal-bearing medium having software for dynamically varying the operating current of at least part of a transmitter, the signal-bearing medium comprising:
- logic configured to select a mode of operation for the transmitter;
- and
- logic configured to adjust the operating current of at least part of the transmitter in response to selecting the mode of operation;
- wherein the adjusting logic further includes
- logic configured to determine a base linearity responsive to the selected mode of operation;
- logic configured to adjust the base linearity responsive to a desired transmit power, and
- logic configured to set the operating current responsive to the adjusted base linearity.
A computer data signal embodied in a carrier wave comprising:
- a mode selection source code segment comprising means for selecting a mode of operation for the transmitter;
- and
- an adjustment source code segment comprising means for adjusting the operating current of at least part of the transmitter in response to selecting the mode of operation;
- wherein the adjustment source code segment further includes
- determining source code segment comprising means for determining a base linearity responsive to the selected mode of operation,
- adjustment source code segment comprising means for adjusting the base linearity responsive to a desired transmit power, and
- setting source code segment comprising means for setting the operating current responsive to the adjusted base linearity.
A computer-readable medium having software for dynamically varying the operating current of at least part of a transmitter, the computer-readable medium comprising:
- logic configured to select a mode of operation for the transmitter;
- and
- logic configured to adjust the operating current of at least part of the transmitter in response to selecting the mode of operation;
- wherein the adjusting logic further includes
- logic configured to determine a base linearity responsive to the selected mode of operation,
- logic configured to adjust the base linearity responsive to a desired transmit power, and
- logic configured to set the operating current responsive to the adjusted base linearity.
A signal-bearing medium having software for dynamically varying the operating current of at least part of a multi-mode transmitter, the signal bearing medium comprising:
- logic configured to select a mode of operation of the multi-mode transmitter, wherein the selector logic is configured to select a mode responsive to a command received over a user interface;
- logic configured to adjust the operating current of at least part of the multi-mode transmitter responsive to the selector means, wherein the adjusting logic further includes
- logic configured to determine a base linearity responsive to the selected mode, where the base linearity is responsive to a crest factor associated with the selected mode,
- logic configured to adjust the base linearity responsive to a desired transmit power, and
- logic configured to determine the operating current responsive to the adjusted base linearity.
Dependencies are inferred from the claim text.