Selecting PA bias levels of RF PA circuitry during a multislot burst
First Claim
1. Circuitry comprising:
- power amplifier (PA) control circuitry adapted to;
select one PA bias level of radio frequency (RF) PA circuitry during one slot of a multislot transmit burst from the RF PA circuitry, such that the RF PA circuitry has one output power level during the one slot and has a next output power level during an adjacent next slot of the multislot transmit burst;
if the one output power level exceeds the next output power level by more than a power drop limit, then maintain the one PA bias level during the adjacent next slot; and
if the one output power level significantly exceeds the next output power level, but by less than the power drop limit, then select a next PA bias level, which is less than the one PA bias level, during the adjacent next slot; and
PA bias circuitry adapted to provide the one PA bias level and the next PA bias level.
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Accused Products
Abstract
Power amplifier (PA) control circuitry and PA bias circuitry are disclosed. During one slot of a multislot transmit burst from radio frequency (RF) PA circuitry, the PA control circuitry selects one PA bias level of the RF PA circuitry and the RF PA circuitry has one output power level. The RF PA circuitry has a next output power level during an adjacent next slot of the multislot transmit burst. If the one output power level exceeds the next output power level by more than a power drop limit, then the PA control circuitry maintains the one PA bias level during the adjacent next slot. If the one output power level significantly exceeds the next output power level, but by less than the power drop limit, then the PA control circuitry selects a next PA bias level, which is less than the one PA bias level, during the adjacent next slot.
262 Citations
20 Claims
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1. Circuitry comprising:
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power amplifier (PA) control circuitry adapted to; select one PA bias level of radio frequency (RF) PA circuitry during one slot of a multislot transmit burst from the RF PA circuitry, such that the RF PA circuitry has one output power level during the one slot and has a next output power level during an adjacent next slot of the multislot transmit burst; if the one output power level exceeds the next output power level by more than a power drop limit, then maintain the one PA bias level during the adjacent next slot; and if the one output power level significantly exceeds the next output power level, but by less than the power drop limit, then select a next PA bias level, which is less than the one PA bias level, during the adjacent next slot; and PA bias circuitry adapted to provide the one PA bias level and the next PA bias level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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providing power amplifier (PA) control circuitry and PA bias circuitry; selecting one PA bias level of radio frequency (RF) PA circuitry during one slot of a multislot transmit burst from the RF PA circuitry, such that the RF PA circuitry has one output power level during the one slot and has a next output power level during an adjacent next slot of the multislot transmit burst; if the one output power level exceeds the next output power level by more than a power drop limit, then maintaining the one PA bias level during the adjacent next slot; if the one output power level significantly exceeds the next output power level, but by less than the power drop limit, then selecting a next PA bias level, which is less than the one PA bias level, during the adjacent next slot; and providing the one PA bias level and the next PA bias level. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification