Method and apparatus for controlling a TX power amplifier
First Claim
1. A method of controlling output power in an inter-slot region of a multi-slot wireless communication device, comprising:
- providing a first power value in a first slot at a first time immediately before the inter-slot region;
providing a second power value in a second slot at a second time immediately after the inter-slot region, wherein the second slot is adjacent to the first slot and the second slot uses a different modulation type than the first slot; and
configuring or generating an output power curve in the inter-slot region, wherein at least one output power value of the output power curve is substantially less than each of the first power value and the second power value.
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Abstract
A method and an apparatus for controlling a TX power amplifier are provided. The method is for generating a power control curve in an inter-slot region between two continuous or adjacent time slots, which respectively have different modulation types. The method and apparatus produces a concave inter-slot ramp control curve for reducing the power of the TX power amplifier in the inter-slot region, where the power for signal transmission is transformed from a first power value K1 to a second power value K2. The method and apparatus further estimates a transient period of the concave inter-slot ramp control curve, during which modulation switching of the TX power amplifier may occur.
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Citations
38 Claims
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1. A method of controlling output power in an inter-slot region of a multi-slot wireless communication device, comprising:
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providing a first power value in a first slot at a first time immediately before the inter-slot region;
providing a second power value in a second slot at a second time immediately after the inter-slot region, wherein the second slot is adjacent to the first slot and the second slot uses a different modulation type than the first slot; and
configuring or generating an output power curve in the inter-slot region, wherein at least one output power value of the output power curve is substantially less than each of the first power value and the second power value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for controlling output power in an inter-slot region of a multi-slot wireless communication device, comprising:
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a device configured to provide (i) a first power value in a first slot at a first time immediately before the inter-slot region and (ii) a second power value in a second slot at a second time immediately after the inter-slot region, wherein the second slot is adjacent to the first slot and the second slot uses a different modulation type than the first slot; and
a controller configured to adjust the output power according to an output power curve in the inter-slot region, wherein at least one output power value of the output power curve is substantially less than the first power value and the second power value. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A multi-slot wireless communication system, comprising:
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a base station; and
a mobile unit configured to communicate with the base station by a plurality of slots, comprising;
a transmission power amplifier;
a device configured to provide (i) a first power value in a first slot at a first time immediately before an inter-slot region and (ii) a second power value in a second slot at a second time immediately after the inter-slot region, wherein the second slot is adjacent to the first slot and the second slot uses a different modulation type than the first slot;
a memory configured to provide at least one original power curve;
a curve generator, connected to the measurement device and the memory, configured to generate an output power curve in the inter-slot region according to the original power curve, wherein at least one output power value of the output power curve is substantially less than the first power value and the second power value; and
a controller, coupled to the curve generator and the transmission power amplifier, configured to adjust the output power of the transmission power amplifier according to the output power curve. - View Dependent Claims (27, 28)
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29. An apparatus for controlling switching in an inter-slot ramp between a first slot having a first power value and a second slot having a second power value, wherein the second slot is adjacent to the first slot, comprising:
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a power controlling apparatus adapted to configure and/or generate an output power curve for the inter-slot region, wherein at least one output power value of the output power curve is substantially less than each of the first power value and the second power value; and
a transient period estimator, coupled to the power controlling apparatus, configured to estimate a transient period of the output power curve in the inter-slot ramp during which switching may occur. - View Dependent Claims (30, 31, 32, 33)
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34. A method for controlling switching in an inter-slot ramp between a first slot and a second slot adjacent to the first slot, wherein the first slot has a first power value and the second slot has a second power value, comprising:
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configuring or generating an output power curve for the inter-slot region, wherein at least one output power value of the output power curve is substantially less than each of the first power value and the second power value; and
estimating a transient period of the output power curve in the inter-slot ramp during which switching may occur. - View Dependent Claims (35, 36, 37, 38)
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Specification