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US 10,097,215 B2Granted
Electronic device and method of controlling transmission power
AssigneeSamsung Electronics Co., Ltd.
InventorsSeongjun Song, Kyunghwan Jo, Youngseok Song, Sungchul Park
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Abstract
A transmission power control method and an electronic device capable of adjusting a bias of a power amplifier are provided. The electronic device includes: a temperature sensor; a power amplifier (PA); and a controller configured to monitor signals from the temperature sensor, determine a bias value for the PA, based on the monitored signals, and control the PA to amplify a signal for transmission based on the determined bias value.
Claims15
An electronic device comprising:
- a temperature sensor;
- a power amplifier (PA);
- and
- a processor configured to:
- determine a transmission power of the PA,
- determine whether the determined transmission power is less than or equal to a preset threshold level, the preset threshold level being set to distinguish between a high power mode and a low power mode,
- monitor, when the determined transmission power is less than or equal to the preset threshold level, signals from the temperature sensor,
- determine a bias value for the PA, based on the monitored signals, and
- control the PA to amplify a signal for transmission based on the determined bias value,
- wherein the processor is further configured to select the bias value using a temperature-based compensation table including bias values that vary according to a plurality of temperatures, and
- wherein the bias value is set to maintain a first amplification gain at a first temperature higher than a specified temperature and is set to maintain a second amplification gain higher than the first amplification gain at a second temperature lower than the specified temperature.
8 more elements
A method of controlling transmission power, the method comprising:
- determining a transmission power of a power amplifier (PA);
- determining whether the determined transmission power is less than or equal to a preset threshold level, the preset threshold level being set to distinguish between a high power mode and a low power mode;
- monitoring, when the determined transmission power is less than or equal to the preset threshold level, a temperature surrounding the PA;
- determining a bias value for the PA based on the monitored temperature;
- and
- controlling the PA to amplify a signal for transmission based on the determined bias value,
- wherein determining the bias value comprises selecting the bias value using a temperature-based compensation table including bias values that vary according to a plurality of temperatures, and
- wherein the bias value is set to maintain a first amplification gain at a first temperature higher than a specified temperature and is set to maintain a second amplification gain higher than the first amplification gain at a second temperature lower than the specified temperature.
5 more elements
Dependencies are inferred from the claim text.