公开(公告)号：WO2014113227A1

公开(公告)日：2014-07-24

申请号：PCT/US2014/010277

申请日：2014-01-06

Applicant: MOTOROLA MOBILITY LLC

Inventor： NAGODE, Thomas D. ,  BLACK, Gregory R. ,  GOEDKEN, Ryan J.

IPC: H03F1/02 ,  H03F1/30 ,  H03F1/32 ,  H03F3/189 ,  H03F3/24

CPC classification number: H04B1/62 ,  H03F1/0227 ,  H03F1/30 ,  H03F1/3247 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/245 ,  H03F2200/06 ,  H03F2200/09 ,  H03F2200/102 ,  H03F2200/336 ,  H03F2200/375 ,  H03F2200/447 ,  H03F2201/3233 ,  H03G3/00

Abstract: A method and system enhances the gain of a propagation path of a radio frequency (RF) signal while utilizing an envelope tracking (ET) mechanism to provide power to a power amplifier within the propagation path. An envelope tracking (ET) controller detects using the ET mechanism an RF envelope of the RF signal being propagated towards the power amplifier. The ET controller applies envelope pre-distortion to the RF signal. The ET controller initiates a function for shaping the supply voltage of the power amplifier by selecting a shaping table that can provide a specific level of increasing amplifier gain at higher signal drive level. The ET controller shapes the supply voltage for the power amplifier by adjusting values corresponding to the detected RF envelope. As a result, RF signals are propagated from the transceiver to the power amplifier output port across high and low transceiver drive levels with net constant gain.

Abstract translation: 一种方法和系统增强射频（RF）信号的传播路径的增益，同时利用包络跟踪（ET）机制向传播路径内的功率放大器提供功率。 信封跟踪（ET）控制器使用ET机制检测RF信号的RF包络向功率放大器传播。 ET控制器将包络预失真应用于RF信号。 ET控制器通过选择一个可在较高信号驱动电平下提供特定电平增加放大器增益的整形表，启动整形功率放大器电源电压的功能。 ET控制器通过调整与检测到的RF包络相对应的值来形成功率放大器的电源电压。 结果，射频信号从收发器传播到功率放大器输出端口，可以通过具有净恒定增益的高和低收发器驱动电平。

公开(公告)号：WO2013033172A1

公开(公告)日：2013-03-07

申请号：PCT/US2012/052810

申请日：2012-08-29

Applicant: MOTOROLA MOBILITY LLC ,  THORSON, Dean E. ,  NAGODE, Thomas D. ,  SCHUMACHER, Lawrence R.

Inventor： THORSON, Dean E. ,  NAGODE, Thomas D. ,  SCHUMACHER, Lawrence R.

IPC: H04W52/24 ,  H04B1/52 ,  H04B15/02

CPC classification number: H04W52/16 ,  H04B1/525 ,  H04B15/02 ,  H04W52/243

Abstract: A method and apparatus can cut back power in a simultaneous dual frequency band call. The method may operate a dual frequency band transmit device. The method may include determining if a transmit frequency in a first frequency band from the device combined with a transmit frequency in a second frequency band from the device causes receiver desensitization at the device. The method may include determining if the transmit power in the first frequency band is above a threshold power. The method may include reducing maximum transmit power in the second frequency band by an amount proportional to transmit power in the first frequency band and transmit signal bandwidth in the second frequency band in only the portion of the second frequency band where a resultant frequency component can cause desensitization.

Abstract translation: 一种方法和装置可以在同时双频带呼叫中切断功率。 该方法可以操作双频带发射设备。 该方法可以包括确定来自设备的第一频带中的发射频率是否与来自该设备的第二频带中的发射频率组合导致设备处的接收机脱敏。 该方法可以包括确定第一频带中的发射功率是否高于阈值功率。 该方法可以包括：将第二频带中的最大发射功率减小与第一频带中的发射功率成比例的量，并且仅在第二频带中产生频率分量可导致的第二频带中的信号带宽 脱敏。

公开(公告)号：WO2013109467A2

公开(公告)日：2013-07-25

申请号：PCT/US2013/021113

申请日：2013-01-11

Applicant: MOTOROLA MOBILITY LLC

Inventor： GOEDKEN, Ryan J. ,  KLOMSDORF, Armin W. ,  NAGODE, Thomas D. ,  SCHWENT, Dale G.

IPC: H03F1/26

CPC classification number: H03F1/0227 ,  H03F1/32 ,  H03F3/195 ,  H03F3/245

Abstract: A method (700) and apparatus (600) optimize resource block based transmitter operation in a wireless communication device. The method can include receiving (720) a radio resource assignment including a particular resource block allocation. The method can include configuring (730) a wireless communication transceiver for the particular resource block allocation. The method can include degrading (740) power amplifier distortion of the wireless communication transceiver based on the particular resource block allocation. The power amplifier distortion can be a measure of a deviation of the power amplifier output in an analysis domain from an ideal linear amplifier.

Abstract translation: 方法（700）和装置（600）优化无线通信设备中基于资源块的发射机操作。 该方法可以包括接收（720）包括特定资源块分配的无线电资源分配。 该方法可以包括为特定资源块分配配置（730）无线通信收发器。 该方法可以包括基于特定资源块分配来降低（740）无线通信收发器的功率放大器失真。 功率放大器失真可以衡量分析域中的功率放大器输出与理想线性放大器的偏差。