TW200640123A - Method and apparatus for controlling a TX power amplifier - Google Patents

Method and apparatus for controlling a TX power amplifier

Info

Publication number
TW200640123A
TW200640123A TW094124919A TW94124919A TW200640123A TW 200640123 A TW200640123 A TW 200640123A TW 094124919 A TW094124919 A TW 094124919A TW 94124919 A TW94124919 A TW 94124919A TW 200640123 A TW200640123 A TW 200640123A
Authority
TW
Taiwan
Prior art keywords
power
power amplifier
inter
control curve
slot
Prior art date
Application number
TW094124919A
Other languages
Chinese (zh)
Other versions
TWI299612B (en
Inventor
Chung-Shine Huang
Ping-Chun Lin
Original Assignee
Mediatek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/124,476 external-priority patent/US7489908B2/en
Priority claimed from US11/147,152 external-priority patent/US7489909B2/en
Application filed by Mediatek Inc filed Critical Mediatek Inc
Publication of TW200640123A publication Critical patent/TW200640123A/en
Application granted granted Critical
Publication of TWI299612B publication Critical patent/TWI299612B/en

Links

Landscapes

  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Amplifiers (AREA)

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.
TW94124919A 2005-05-06 2005-07-22 Method and apparatus for controlling a tx power amplifier TWI299612B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/124,476 US7489908B2 (en) 2004-06-18 2005-05-06 Method and apparatus for controlling a TX power amplifier
US11/147,152 US7489909B2 (en) 2004-06-18 2005-06-06 Method and apparatus for controlling a TX power amplifier

Publications (2)

Publication Number Publication Date
TW200640123A true TW200640123A (en) 2006-11-16
TWI299612B TWI299612B (en) 2008-08-01

Family

ID=45069737

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94124919A TWI299612B (en) 2005-05-06 2005-07-22 Method and apparatus for controlling a tx power amplifier

Country Status (1)

Country Link
TW (1) TWI299612B (en)

Also Published As

Publication number Publication date
TWI299612B (en) 2008-08-01

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