公开(公告)号：US20090047902A1

公开(公告)日：2009-02-19

申请号：US11838536

申请日：2007-08-14

申请人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

发明人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

IPC分类号： H04B7/185

CPC分类号： H04W52/242 ,  H04B17/13 ,  H04W52/10 ,  H04W52/146 ,  H04W52/228 ,  H04W52/52

摘要： 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.

摘要翻译： 本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。 该方法可以包括在用户设备（120）处接收（315）上行链路调度许可，基于至少上行链路调度许可来建立（320）期望的功率电平，并且基于所需的功率来设置（325）硬件功率设置 水平。 该方法还可以包括基于硬件功率设置以第一功率电平在第一子帧中发送（330）数据，测量（335）第一子帧中的第一功率电平，以及确定（340）期望功率之间的差 水平和测量的第一功率水平。 该方法可以另外包括基于差异修改（345）硬件功率设置，并且基于在与第一子帧中的传输相对应的下一个传输中的修改的硬件功率设置在第二功率电平上发送（350）。

公开(公告)号：US06741840B2

公开(公告)日：2004-05-25

申请号：US10097714

申请日：2002-03-13

申请人： Thomas Nagode ,  Patrick Pratt ,  Dale Schwent

发明人： Thomas Nagode ,  Patrick Pratt ,  Dale Schwent

IPC分类号： H04B109

CPC分类号： H04B1/0475 ,  H03F1/0272

摘要： 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.

摘要翻译： 包括具有集成控制回路的发射器的无线电通信设备中的方法，以及其它积分控制系统中的方法，包括基于放大器输出信号和校正参考信号产生第一误差信号（210），产生第二误差（220）信号 基于施加到放大器的控制输入并基于积分控制参考信号的闭环积分控制信号，并且通过基于第一和第二误差信号校正参考信号来产生校正的参考信号（230）。

公开(公告)号：US07079819B2

公开(公告)日：2006-07-18

申请号：US10805862

申请日：2004-03-22

申请人： Thomas Nagode ,  Patrick Pratt ,  Dale Schwent

发明人： Thomas Nagode ,  Patrick Pratt ,  Dale Schwent

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/0272

摘要： 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.

摘要翻译： 包括具有集成控制回路的发射器的无线电通信设备中的方法，以及其它积分控制系统中的方法，包括基于放大器输出信号和校正参考信号产生第一误差信号（210），产生第二误差（220）信号 基于施加到放大器的控制输入并基于积分控制参考信号的闭环积分控制信号，并且通过基于第一和第二误差信号校正参考信号来产生校正的参考信号（230）。

公开(公告)号：US06487398B1

公开(公告)日：2002-11-26

申请号：US09929578

申请日：2001-08-14

申请人： Dan Nobbe ,  Dale Schwent ,  David P. Kovac ,  Vikram Karnani

发明人： Dan Nobbe ,  Dale Schwent ,  David P. Kovac ,  Vikram Karnani

IPC分类号： H01Q1112

CPC分类号： H04B1/0475

摘要： A low noise direct conversion transmitter architecture without a post-PA filter is described. A high power/low noise differential LO (110), controlled by a near unity divide ratio PLL (112) for re-modulation protection, is coupled a polyphase quadrature generator (120) generating amplitude-balanced and phase-shifted limited differential LO signals. The quadrature mixers (130 and 132) receive the limited differential LO signals and the filtered differential baseband signals to produce up-converted differential signals. The combiner (168) receives the up-converted differential signals and combines them to produce a differential RF transmission signal. A VCA (174) amplifies the differential RF transmission signal, and the resulting differential signal is converted to a single-ended RF transmission signal through a balun (180). A linear amplifier (184) is coupled to the single-ended RF transmission signal for amplification before radio transmission by an antenna (188).

摘要翻译： 描述了没有后置PA滤波器的低噪声直接转换发射机架构。 由用于再调制保护的接近单位分频比P​​LL（112）控制的高功率/低噪声差分LO（110）被耦合到产生幅度平衡和相移限制差分LO信号的多相正交发生器（120） 。 正交混频器（130和132）接收限制的差分LO信号和滤波的差分基带信号以产生上变频的差分信号。 组合器（168）接收上变频的差分信号并将其组合以产生差分RF传输信号。 VCA（174）放大差分RF传输信号，所得到的差分信号通过平衡 - 不平衡变换（180）转换为单端RF传输信号。 线性放大器（184）耦合到单端RF发射信号，用于在由天线（188）进行无线电传输之前进行放大。

公开(公告)号：US08145127B2

公开(公告)日：2012-03-27

申请号：US11838536

申请日：2007-08-14

申请人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

发明人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

IPC分类号： H04B7/185

CPC分类号： H04W52/242 ,  H04B17/13 ,  H04W52/10 ,  H04W52/146 ,  H04W52/228 ,  H04W52/52

摘要： 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.

摘要翻译： 本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。 该方法可以包括在用户设备（120）处接收（315）上行链路调度许可，基于至少上行链路调度许可来建立（320）期望的功率电平，并且基于所需的功率来设置（325）硬件功率设置 水平。 该方法还可以包括基于硬件功率设置以第一功率电平在第一子帧中发送（330）数据，测量（335）第一子帧中的第一功率电平，以及确定（340）期望功率之间的差 水平和测量的第一功率水平。 该方法可以另外包括基于差异修改（345）硬件功率设置，并且基于在与第一子帧中的传输相对应的下一个传输中的修改的硬件功率设置在第二功率电平上发送（350）。

公开(公告)号：US20090046693A1

公开(公告)日：2009-02-19

申请号：US11838517

申请日：2007-08-14

申请人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

发明人： Ravikiran Nory ,  Edgar Fernandes ,  Robert Love ,  Vijay Nangia ,  Dale Schwent ,  Kenneth A. Stewart

IPC分类号： H04J1/00 ,  H04Q7/20

CPC分类号： H04W52/08 ,  H04B17/13 ,  H04W52/146 ,  H04W52/16 ,  H04W52/50

摘要： 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, 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, and performing (340) a calibration transmission during the mapped uplink symbol for performing transmit power control calibration. The method can also include calibrating (350) a transmit power based on the calibration transmission and transmitting (360) data at the calibrated transmit power on at least one other symbol following the mapped uplink symbol.

摘要翻译： 本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。 该方法可以包括在用户设备（120）处接收（320）来自频分复用无线系统中的来自基站（130）的信号，响应于接收到来自基站的信号而映射（330） 功率控制校准区域到子帧中的上行链路符号，以使用预定标准建立映射的上行链路符号，并且在映射的上行链路符号期间执行（340）校准传输以执行发射功率控制校准。 该方法还可以包括基于校准传输校准（350）发射功率，并且在被映射的上行链路符号之后的至少一个其他符号上以校准的发射功率发射（360）数据。