Temperature compensation of transmit power of a wireless communication device
First Claim
1. A method for temperature compensation of transmit power of a wireless communication device, the method comprises:
- measuring transmit power of the wireless communication device at a first temperature-based biasing condition to produce a first measured transmit power;
measuring transmit power of the wireless communication device at a second temperature-based biasing condition to produce a second measured transmit power;
determining ambient temperature of at least a portion of the wireless communication device based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions; and
compensating transmit power level of the wireless communication device based on the ambient temperature.
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Accused Products
Abstract
A method for temperature compensation of transmit power of a wireless communication device begins by measuring transmit power of the wireless communication device at a first temperature-based biasing condition to produce a first measured transmit power. The method continues by measuring transmit power of the wireless communication device at a second temperature-based biasing condition to produce a second measured transmit power. The method continues by determining ambient temperature of at least a portion of the wireless communication device based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions. The method continues by compensating transmit power level of the wireless communication device based on the ambient temperature.
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Citations
24 Claims
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1. A method for temperature compensation of transmit power of a wireless communication device, the method comprises:
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measuring transmit power of the wireless communication device at a first temperature-based biasing condition to produce a first measured transmit power;
measuring transmit power of the wireless communication device at a second temperature-based biasing condition to produce a second measured transmit power;
determining ambient temperature of at least a portion of the wireless communication device based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions; and
compensating transmit power level of the wireless communication device based on the ambient temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless communication device comprises:
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a receiver section operably coupled to convert inbound radio frequency (RF) signals into inbound low intermediate frequency (IF) signals;
a transmitter section operably coupled to convert outbound low IF signals into outbound RF signals, wherein the transmitter section transmits the outbound RF signals at a substantially constant power level, wherein the substantially constant power level is maintained by;
measuring transmit power of the transmitter section at a first temperature-based biasing condition to produce a first measured transmit power;
measuring transmit power of the transmitter section at a second temperature-based biasing condition to produce a second measured transmit power;
determining ambient temperature of at least a portion of the transmitter section based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions; and
compensating transmit power level of the transmit section based on the ambient temperature to produce the substantially constant power level. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An adjustable power amplifier comprises:
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an input amplifier section operably coupled to intermediately amplify output radio frequency (RF) signals to produce intermediately amplified RF signals;
an output amplifier section operably coupled to amplify the intermediate amplified RF signals to produce power amplified outbound RF signals;
a first biasing circuit, when enabled, biases the output amplifier section in accordance with a first temperature to biasing relationship;
a second biasing circuit, when enabled, biases the output amplifier section in accordance with a second temperature to biasing relationship; and
gain adjust module operably coupled to adjust gain of at least one of the input amplifier section and the output amplifier section based on transmit power level differences of the power amplified outbound RF signals when the first biasing circuit is enabled and when the second biasing circuit is enabled. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification