Method and apparatus for controlling a TX power amplifier
First Claim
1. A power controlling method, applied in a power amplifier for controlling power of a signal to-be-transmitted, the method producing a power control curve in a power variation area for controlling the power variation of the signal, the power variation area having at least one transmission power value K, the method comprising:
- generating an original curve according to the transmission power value K, the original curve being horizontally and equally divided into an original left section FL and an original right section FR;
determining a lowest power value H in the power variation area according to the transmission power value K;
determining a left section ratio SL and a right section ratio SR according to the transmission power value K and the lowest power value H;
calculating a left section FL′
of the power control curve according to the lowest power value H, the original left section FL and the left section ratio SL;
calculating a right section FR′
of the power control curve according to the lowest power value H, the original right section FR and the right section ratio SR; and
producing the power control curve in the power variation area according to the left section FL′ and
the right section FR′
to control the power variation of the signal.
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Abstract
A method and an apparatus for controlling a TX power amplifier are provided in the present invention. The invention is applied for generating a power control curve in a power variation area to control the power variation for signal transmission when the TX power amplifier transmits the data during two continuous time slots, which are a first time slot and a second time slot, respectively have a first transmission power value K1 and a second transmission power value K2. The invention is aimed at producing a concave down inter-ramp control curve in a inter-ramp division of the power variation area for controlling the power variation of the TX power amplifier, where the power for signal transmission is transformed from the first transmission power value K1 to the second transmission power value K2.
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Citations
17 Claims
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1. A power controlling method, applied in a power amplifier for controlling power of a signal to-be-transmitted, the method producing a power control curve in a power variation area for controlling the power variation of the signal, the power variation area having at least one transmission power value K, the method comprising:
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generating an original curve according to the transmission power value K, the original curve being horizontally and equally divided into an original left section FL and an original right section FR;
determining a lowest power value H in the power variation area according to the transmission power value K;
determining a left section ratio SL and a right section ratio SR according to the transmission power value K and the lowest power value H;
calculating a left section FL′
of the power control curve according to the lowest power value H, the original left section FL and the left section ratio SL;
calculating a right section FR′
of the power control curve according to the lowest power value H, the original right section FR and the right section ratio SR; and
producing the power control curve in the power variation area according to the left section FL′ and
the right section FR′
to control the power variation of the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification