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公开(公告)号：JP2001127664A
公开(公告)日：2001-05-11
申请号：JP2000276259
申请日：2000-09-12
Applicant: MOTOROLA INC
Inventor： IYU K CHAN , SCHWENT DALE , MICHAEL RANDOHAA , KLOMSDORF ARMIN , HUNDT MICHAEL
Abstract: PROBLEM TO BE SOLVED: To provide an RF coupler that is suitable for use in a multi-band wireless communication unit where duplicate in components of an RF power detector can be reduced. SOLUTION: A radio frequency(RF) coupler 312 suitable for use in a multi- band wireless communication unit 200 has a terminator 316 and couplers 314, 315. The couplers 314, 315 have passing path coupling elements 318, 320 and coupling path coupling elements 319, 321. The passing path coupling elements 318, 320 transmit RF signals transmitted by respective frequency bands TX band 1, TX band 2 in which the unit 200 is in operation. The coupling path coupling elements 319, 321 couple the RF signals transmitted by the respective passing path coupling elements 318, 320. The coupling path coupling elements 319, 321 and the terminator 316 are coupled in series thereby making compatible with an RF power detector 313 using a single detection diode 322.
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公开(公告)号：CA2697000A1
公开(公告)日：2009-02-19
申请号：CA2697000
申请日：2008-08-13
Applicant: MOTOROLA INC
Inventor： NORY RAVIKIRAN , FERNANDES EDGAR , LOVE ROBERT , NANGIA VIJAY , SCHWENT DALE , STEWART KENNETH A
Abstract: The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (315) an uplink scheduling grant at a user equipment (120), establishing (320) a desired power level based on at least the uplink scheduling grant, and setting (325) hardware power settings based on the desired power level. The method may also include transmitting (330) data in a first subframe at a first power level based on the hardware power settings, measuring (335) the first power level in the first subframe, and determining (340) a difference between the desired power level and the measured first power level. The method may additionally include modifying (345) the hardware power settings based on the difference and transmitting (350) at a second power level based on the modified hardware power settings in a next transmission corresponding to the transmission in the first subframe.
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3.发明专利
公开(公告)号：AU739634B2
公开(公告)日：2001-10-18
申请号：AU5657700
申请日：2000-09-08
Applicant: MOTOROLA INC
Inventor： CHAN YIU K , SCHWENT DALE , LANDHERR MICHAEL , KLOMSDORF ARMIN , HAND MICHAEL
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公开(公告)号：BR0100042A
公开(公告)日：2001-08-21
申请号：BR0100042
申请日：2001-01-09
Applicant: MOTOROLA INC
Inventor： KLOMSDORF ARMIN , SCHWENT DALE , WINKELMANN LUKE E , GREENE MATHEW
Abstract: A modulation format switch in signal communication with an amplifier, which produces a plurality of modulation format signals, and a load is described. The modulation format switch includes at least one matching network in signal communication with the amplifier and the load, where the at least one matching network capable of having a plurality of impedance values corresponding to the plurality of modulation format signals. The modulation format switch also includes a controllable element in the matching network, the controllable element capable of having more than one impedance value.
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公开(公告)号：BRPI0815355A2
公开(公告)日：2015-02-10
申请号：BRPI0815355
申请日：2008-08-13
Applicant: MOTOROLA INC
Inventor： NORY RAVIKIRAN , FERNANDES EDGAR , LOVE ROBERT , NANGIA VIJAY , SCHWENT DALE , STEWART KENNETH A
Abstract: The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (315) an uplink scheduling grant at a user equipment (120), establishing (320) a desired power level based on at least the uplink scheduling grant, and setting (325) hardware power settings based on the desired power level. The method may also include transmitting (330) data in a first subframe at a first power level based on the hardware power settings, measuring (335) the first power level in the first subframe, and determining (340) a difference between the desired power level and the measured first power level. The method may additionally include modifying (345) the hardware power settings based on the difference and transmitting (350) at a second power level based on the modified hardware power settings in a next transmission corresponding to the transmission in the first subframe.
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Patent Agency Ranking
公开(公告)号：CA2695964C
公开(公告)日：2014-01-14
申请号：CA2695964
申请日：2008-08-13
Applicant: MOTOROLA INC
Inventor： NORY RAVIKIRAN , FERNANDES EDGAR , LOVE ROBERT , NANGIA VIJAY , SCHWENT DALE , STEWART KENNETH A
Abstract: The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (320), at a user equipment (120), a signal from a base station (130) in a frequency division multiplexed wireless system and mapping (330), in response to receiving the signal from the base station, a power control calibration region to an uplink symbol in a subframe to establish a mapped uplink symbol using predetermined criteria. The method can also include calibrating (350) a transmit power based on transmission in the calibration region and transmitting (360) data at the calibrated transmit power on at least one other symbol following the mapped uplink symbol.
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公开(公告)号：AU2003213278A1
公开(公告)日：2003-09-29
申请号：AU2003213278
申请日：2003-02-24
Applicant: MOTOROLA INC
Inventor： SCHWENT DALE , NAGODE THOMAS , PRATT PATRICK
Abstract: Methods in radio communications devices having a transmitter with an integral control loop, and in other integral control systems, including generating a first error signal ( 210 ) based upon an amplifier output signal and a corrected reference signal, generating a second error ( 220 ) signal based on a closed loop integral control signal applied to a control input of the amplifier and based on an integral control reference signal, and generating the corrected reference signal ( 230 ) by correcting a reference signal based upon the first and second error signals.
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公开(公告)号：BR0005388A
公开(公告)日：2001-06-12
申请号：BR0005388
申请日：2000-09-13
Applicant: MOTOROLA INC
Inventor： CHAN YIU K , KLOMSDORF ARMIN , LANDHERR MICHAEL , SCHWENT DALE , HAND MICHAEL
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公开(公告)号：CA2697000C
公开(公告)日：2014-03-18
申请号：CA2697000
申请日：2008-08-13
Applicant: MOTOROLA INC
Inventor： NORY RAVIKIRAN , FERNANDES EDGAR , LOVE ROBERT , NANGIA VIJAY , SCHWENT DALE , STEWART KENNETH A
Abstract: The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (315) an uplink scheduling grant at a user equipment (120), establishing (320) a desired power level based on at least the uplink scheduling grant, and setting (325) hardware power settings based on the desired power level. The method may also include transmitting (330) data in a first subframe at a first power level based on the hardware power settings, measuring (335) the first power level in the first subframe, and determining (340) a difference between the desired power level and the measured first power level. The method may additionally include modifying (345) the hardware power settings based on the difference and transmitting (350) at a second power level based on the modified hardware power settings in a next transmission corresponding to the transmission in the first subframe.
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公开(公告)号：BRPI0518523A2
公开(公告)日：2008-11-25
申请号：BRPI0518523
申请日：2005-11-28
Applicant: MOTOROLA INC
Inventor： BLACK GREG R , KLOMSDORF ARMIN W , SCHWENT DALE
Abstract: A polar modulation power amplifier circuit includes a control circuit ( 101 ) to determine and provide a load selection signal ( 127 ), wherein the load selection signal ( 127 ) is determined responsive to a requested power signal ( 119 ). A power amplifier ( 113 ) is responsive to a power control signal ( 141 ), for amplifying an RF signal ( 139 ) to produce an amplified signal ( 145 ), having an output power level. A variable impedance matching circuit ( 117 ) is responsive to the load selection signal ( 127 ), to adjust a relationship between the control level and the output power level, to produce a range-adjusted amplified signal ( 147 ).
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