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1. 发明授权

US08934854B2 Transmitter with peak-tracking PAPR reduction and method therefor 有权
标题翻译：具有峰值跟踪减少PAPR的发射机及其方法
公开(公告)号：US08934854B2
公开(公告)日：2015-01-13
申请号：US13597762
申请日：2012-08-29
申请人： Ronald Duane McCallister
发明人： Ronald Duane McCallister
IPC分类号： H04B1/04 , H04B17/00
CPC分类号： H03F1/3247 , H03F1/0266 , H03F3/193 , H03F3/245 , H03F2200/102
摘要： A transmitter (20) includes a peak reduction section (30), a predistorter (98), and an amplifying section (102) biased by a variable bias signal generator (118). The peak reduction section (30) is controlled by a signal magnitude threshold (36) that defines maximum magnitudes for local peaks (32) of a reduced-peak communication signal (38). The bias signal generator (118) is controlled by a bias control signal (110). Both the signal magnitude threshold (36) and the bias control signal (110) are derived from a common reduced bandwidth (50) peak-tracking signal (42). The peak-tracking signal (42) is derived from an inflated-peak communication signal (26). The predistorter (98) applies distortion to the reduced-peak communication signal (38) that is configured, at least in part, by the bias control signal (110).
摘要翻译：发射机（20）包括峰值减小部分（30），预失真器（98）和由可变偏置信号发生器（118）偏置的放大部分（102）。峰值降低部分（30）由对峰值通信信号（38）的局部峰值（32）定义最大幅度的信号幅度阈值（36）来控制。偏置信号发生器（118）由偏置控制信号（110）控制。信号幅度阈值（36）和偏置控制信号（110）都是从共同的降低带宽（50）峰值跟踪信号（42）导出的。峰值跟踪信号（42）从充气峰值通信信号（26）导出。预失真器（98）对至少部分由偏置控制信号（110）配置的减小峰值通信信号（38）施加失真。

2. 发明授权

US08489047B2 Transmitter linearized using bias deviation gain adjustment and method therefor 有权
标题翻译：发射机采用偏置偏差增益线性化调整及其方法
公开(公告)号：US08489047B2
公开(公告)日：2013-07-16
申请号：US12917878
申请日：2010-11-02
申请人： Ronald Duane McCallister , Eric M. Brombaugh
发明人： Ronald Duane McCallister , Eric M. Brombaugh
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04B1/0475 , H03F1/301 , H03F1/3241 , H03F1/3247 , H03F3/193 , H03F3/245 , H03F2200/15 , H03F2200/18 , H03G3/3042
摘要： A transmitter (50) includes a low power memoryless nonlinear predistorter (58) that inserts predistortion configured to address a nonlinearity (146) corresponding to gain droop and another nonlinearity (148) corresponding to deviations from an average bias condition. When efforts are taken to reduce memory effects, such as configuring a network of components (138) that couple to an HPA (114) to avoid resonance frequencies within a video bandwidth (140), high performance linearization at low power results without extending linearization beyond that provided by the memoryless nonlinear predistorter (58). Each nonlinearity is addressed by applying gain to a communication signal (54). The amount of gain applied is determined by a look-up table (170) for one nonlinearity (146) and by a look-up table (198) in combination with a differentiator (202) for the other nonlinearity (148). The look-up tables (170, 198) are updated in accordance with modified LMS control loops.
摘要翻译：发射机（50）包括低功率无记忆非线性预失真器（58），其插入被配置为寻址对应于增益下降的非线性（146）的预失真和对应于与平均偏置条件的偏差相对应的另一非线性（148）。当努力减少存储器效应时，例如配置耦合到HPA（114）的组件网络（138）以避免视频带宽（140）内的共振频率，在低功率下实现高性能线性化，而不会延长线性化超出由无记忆非线性预失真器（58）提供。通过将增益应用于通信信号来解决每个非线性（54）。施加的增益量由用于一个非线性（146）的查找表（170）和与另一非线性（148）的微分器（202）组合的查找表（198）确定。根据修改的LMS控制环来更新查找表（170,198）。

3. 发明申请

US20120034887A1 Transmitter Linearized Using Cartesian-Processed Look-Up Table and Method Therefor 有权
标题翻译：使用笛卡尔加工查找表线性化发射机及其方法
公开(公告)号：US20120034887A1
公开(公告)日：2012-02-09
申请号：US12860507
申请日：2010-08-20
申请人： Ronald Duane McCallister , Eric M. Brombaugh
发明人： Ronald Duane McCallister , Eric M. Brombaugh
IPC分类号： H04B1/04
CPC分类号： H03F1/3247 , H03F1/3241 , H03F3/24 , H03F2201/3224 , H03F2201/3233 , H04B2001/0425
摘要： A transmitter (50) includes a nonlinear predistorter (58) having two instances of an inverting transform (106, 106′) that may be implemented in a look-up table (122) and that implements a transform which is the inverse of an average terms component (96) of a nonlinear transform model (94) for an amplifier (70). The look-up table (122) may be updated using a continuous process control loop that avoids Cartesian to polar coordinate conversions. One of the two instances of the inverting transform (106) is cascaded with a non-inversing transform (108) within a residual cancellation section (110) of the predistorter (58). The non-inversing transform (108) implements a transform which is an estimate of a deviation terms component (98) of the nonlinear transform model (94). The residual cancellation section (110) produces a weak signal that replaces an unwanted residual term in an amplified communication signal (76) with a much weaker residual term.
摘要翻译：发射机（50）包括具有可以在查找表（122）中实现并且实现与平均值相反的变换的反向变换（106,106'）的两个实例的非线性预失真器（58）用于放大器（70）的非线性变换模型（94）的项分量（96）。可以使用避免笛卡尔到极坐标转换的连续过程控制循环来更新查找表（122）。反相变换（106）的两个实例之一与预失真器（58）的残余消除部分（110）内的非反相变换（108）级联。非反转变换（108）实现变换，其是非线性变换模型（94）的偏差项分量（98）的估计。残余消除部分（110）产生弱信号，其以较弱的残余项替代放大的通信信号（76）中的不需要的残余项。

4. 发明申请

US20110092173A1 TRANSMITTING UNIT THAT REDUCES PAPR USING OUT-OF-BAND DISTORTION AND METHOD THEREFOR 有权
标题翻译：传输单元减少使用带外失真的PAPR及其方法
公开(公告)号：US20110092173A1
公开(公告)日：2011-04-21
申请号：US12580069
申请日：2009-10-15
申请人： Ronald Duane McCallister , Eric M. Brombaugh
发明人： Ronald Duane McCallister , Eric M. Brombaugh
IPC分类号： H04B1/02
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/34 , H03F3/19 , H03F3/24 , H03F2201/3209 , H04B2001/0433
摘要： A transmitting unit (12) clips a communication signal (14) to form a threshold-responsive signal (36, 36′) which includes in-band distortion (40) and out-of-band distortion (38). A portion of the out-of-band distortion (38) is notched within rejection bands (48, 50) adjacent to the communication signal's bandwidth (24). But remaining portions of the out-of-band distortion (38) and portions of the in-band distortion (40) are included with the communication signal (14). The remaining portion of the out-of-band distortion (38) causes the communication signal (14) to be in violation of a spectral mask (30). The mask-violating communication signal 14 with out-of-band distortion (38) and in-band distortion (40) is amplified by an RF power amplifier (22). After amplification, a bandpass filter (92) exhibiting fast rolloff regions (110) attenuates the amplified out-of-band distortion (38) causing compliance with the spectral mask (30).
摘要翻译：发送单元（12）夹住通信信号（14）以形成包括带内失真（40）和带外失真（38）的阈值响应信号（36,36'）。带外失真（38）的一部分在与通信信号带宽（24）相邻的抑制频带（48,50）内被切断。但是，通信信号（14）包括带外失真（38）的剩余部分和带内失真（40）的部分。带外失真（38）的剩余部分导致通信信号（14）违反频谱掩模（30）。具有带外失真（38）和带内失真（40）的屏蔽违规通信信号14被RF功率放大器（22）放大。在放大之后，呈现快速滚降区域（110）的带通滤波器（92）衰减放大的带外失真（38），导致符合频谱掩模（30）。

5. 发明申请

US20100048146A1 Transceiver with Compensation for Transmit Signal Leakage and Method Therefor 有权
标题翻译：收发器，用于传输信号泄漏补偿及其方法
公开(公告)号：US20100048146A1
公开(公告)日：2010-02-25
申请号：US12521412
申请日：2007-01-30
申请人： Ronald Duane McCallister
发明人： Ronald Duane McCallister
IPC分类号： H04B1/44
CPC分类号： H04B1/525 , H04B2001/0416
摘要： A transceiver (10) includes an RF transmitter (12) and an RF receiver (14) coupled together through a duplexer (30) or non-filtering multiport device (30′). Either device may leak significant portions (56, 58) of the transmit signal (20) into the receive signal (44), and may significantly distort the transmit signal (20). Distortion is compensated in the transmitter (12) through the use of a linear predistorter (68) that is adjusted in response to an RF feedback signal obtained from the antenna-side of the device. Transmit signal leakage is compensated in the receiver (14) by producing an RF cancellation signal (106) that, when combined with the receive signal (44) at RF at least partially cancels the transmit signal portions (56, 58) leaked into the receive signal (44). Residual leakage signal and intermodulation products thereof may be cancelled digitally.
摘要翻译：收发器（10）包括通过双工器（30）或非过滤多端口设备（30'）耦合在一起的RF发射器（12）和RF接收器（14）。任一装置可能将发射信号（20）的重要部分（56,58）泄漏到接收信号（44）中，并且可能使发射信号（20）显着失真。在发射机（12）中通过使用响应于从设备的天线侧获得的RF反馈信号而调整的线性预失真器（68）来补偿变形。在接收器（14）中通过产生RF信号（106）来补偿发射信号泄漏，该RF消除信号（106）当与RF中的接收信号（44）组合时至少部分地消除泄漏到接收器中的发射信号部分（56,58）信号（44）。可以数字地取消残留泄漏信号及其互调产物。

6. 发明申请

US20090227215A1 RF Transmitter with Bias-Signal-Induced Distortion Compensation and Method Therefor 有权
标题翻译：射频发射器，具有偏置信号诱导失真补偿及其方法
公开(公告)号：US20090227215A1
公开(公告)日：2009-09-10
申请号：US12043880
申请日：2008-03-06
申请人： Ronald Duane McCallister
发明人： Ronald Duane McCallister
IPC分类号： H04B1/04
CPC分类号： H04B1/04 , H03F1/0211 , H03F1/0266 , H03F1/3205 , H03F1/3247 , H03F1/34 , H03F3/193 , H03F3/24 , H03F3/245 , H03F2200/15 , H03F2200/18 , H04B2001/0433
摘要： An RF transmitter (60) generates non-DC bias signals (104, 106) configured to improved power-added efficiency (PAE) in the operation of an RF amplifier (94). The RF amplifier (94) generates an amplified RF signal (126) which, due to the addition of the bias signals (104, 106), includes bias-signal-induced RF distortion (48, 50). The bias signals (104, 106) drive a bias-induced distortion cancellation circuit (152) that adjusts the bias signals to compensate for the influence of impedances experienced by the bias signals (104, 106) before being applied to the RF amplifier (94). After mixing with a baseband communication signal (64), adjusted bias signals (186, 188) are combined into a composite baseband signal (76), upconverted to RF in an upconversion section 84, and applied to the RF amplifier (94) where they cancel at least a portion of the bias-signal-induced RF distortion (48, 50).
摘要翻译： RF发射器（60）产生被配置为在RF放大器（94）的操作中改善功率附加效率（PAE）的非DC偏置信号（104,106）。 RF放大器（94）产生放大的RF信号（126），其由偏置信号（104,106）的相加而包括偏置信号引起的RF失真（48,50）。偏置信号（104,106）驱动偏置引起的失真消除电路（152），该电路调节偏置信号以补偿在施加到RF放大器（94,106）之前偏置信号（104,106）所经受的阻抗的影响）。在与基带通信信号（64）混合之后，调整的偏置信号（186,188）被组合成复合基带信号（76），在上变频部分84中被上变频到RF，并且被施加到RF放大器（94）消除偏置信号引起的RF失真的至少一部分（48,50）。

7. 发明授权

US07088958B2 Remote power amplifier linearization 有权
标题翻译：远程功率放大器线性化
公开(公告)号：US07088958B2
公开(公告)日：2006-08-08
申请号：US09884000
申请日：2001-06-19
申请人： Daniel Davidson MacFarlane Shearer, III , Ronald Duane McCallister
发明人： Daniel Davidson MacFarlane Shearer, III , Ronald Duane McCallister
IPC分类号： H04B7/00
CPC分类号： H04W52/52 , H04L1/0003 , H04L1/0025
摘要： A communication system (20) includes a hub radio (22) that wirelessly communicates with any number of user radios (24). The hub radio (22) monitors signal quality measurements compiled from the communication signals (30′) transmitted from the various user radios (24) and based upon baseband quadrature constellation point error to estimate out-of-band signal energy for the communication signals (30′). The hub radio (22) formulates commands based upon these measurements that instruct the user radios (24) how to adjust their power amplifier linearizers (66) so that their power amplifiers (74) become better linearized to minimize spectral regrowth and insure compliance with a spectral template.
摘要翻译：通信系统（20）包括与任何数量的用户无线电（24）无线通信的集线器无线电（22）。集线器收音机（22）监视从各种用户无线电（24）发送的通信信号（30'）编译的信号质量测量，并且基于基带正交星座点误差来估计通信信号的带外信号能量（ 30'）。集线器无线电（22）基于这些测量来制定指令，其指示用户无线电（24）如何调整其功率放大器线性化器（66），使得它们的功率放大器（74）变得更好地线性化，以使频谱再生长最小化并确保符合光谱模板。

8. 发明授权

US08824574B2 Transmitting unit that reduces PAPR and method therefor 有权
标题翻译：减少PAPR的传输单元及其方法
公开(公告)号：US08824574B2
公开(公告)日：2014-09-02
申请号：US12557915
申请日：2009-09-11
申请人： Ronald Duane McCallister , Eric M. Brombaugh
发明人： Ronald Duane McCallister , Eric M. Brombaugh
IPC分类号： H04K1/10 , H04K1/02 , H04L27/26 , H04L27/36 , H04L5/00
CPC分类号： H04L27/2623 , H04L5/0048 , H04L27/367
摘要： A communication system includes a transmitting unit with a peak to average power (PAPR) reduction section. The PAPR reduction section modifies the PAPR reduction it effects in a communication signal in accordance with two different error vector magnitude (EVM) constraints for each channel type, where a channel type is a distinct combination of a modulation order and a coding rate. The EVM constraint followed for each subcarrier in an OFDM or OFDMA application is selected in response to whether the subcarrier conveys voice or non-voice data. The PAPR reduction section may include a scaling filter. The scaling filter is efficiently defined through the use of a predetermined sinc function and a first stage scale factor that is calculated in response to a weighted average of excursion signal subcarrier gains, where the weighting follows the distribution of channel types through the subcarriers.
摘要翻译：通信系统包括具有峰值对平均功率（PAPR）减小部分的发送单元。 PAPR减少部分根据针对每个信道类型的两个不同的误差向量幅度（EVM）约束修改在通信信号中影响的PAPR减小，其中信道类型是调制阶数和编码率的不同组合。响应于子载波是否传送语音或非语音数据，选择OFDM或OFDMA应用中的每个子载波所遵循的EVM约束。 PAPR减少部分可以包括缩放滤波器。缩放滤波器通过使用预定的sinc函数和响应于偏移信号副载波增益的加权平均而计算的第一级比例因子被有效地定义，其中加权遵循通过子载波的信道类型的分布。

9. 发明授权

US08805298B2 Transceiver with compensation for transmit signal leakage and method therefor 有权
标题翻译：收发器补偿发射信号泄漏及其方法
公开(公告)号：US08805298B2
公开(公告)日：2014-08-12
申请号：US12521412
申请日：2007-01-30
申请人： Ronald Duane McCallister
发明人： Ronald Duane McCallister
IPC分类号： H04B1/44 , H04M1/00 , H04B1/38 , H04L5/16 , H04B1/52 , H04B1/04
CPC分类号： H04B1/525 , H04B2001/0416
摘要： A transceiver (10) includes an RF transmitter (12) and an RF receiver (14) coupled together through a duplexer (30) or non-filtering multiport device (30′). Either device may leak significant portions (56, 58) of the transmit signal (20) into the receive signal (44), and may significantly distort the transmit signal (20). Distortion is compensated in the transmitter (12) through the use of a linear predistorter (68) that is adjusted in response to an RF feedback signal obtained from the antenna-side of the device. Transmit signal leakage is compensated in the receiver (14) by producing an RF cancellation signal (106) that, when combined with the receive signal (44) at RF at least partially cancels the transmit signal portions (56, 58) leaked into the receive signal (44). Residual leakage signal and intermodulation products thereof may be cancelled digitally.
摘要翻译：收发器（10）包括通过双工器（30）或非过滤多端口设备（30'）耦合在一起的RF发射器（12）和RF接收器（14）。任一装置可能将发射信号（20）的重要部分（56,58）泄漏到接收信号（44）中，并且可能使发射信号（20）显着失真。在发射机（12）中通过使用响应于从设备的天线侧获得的RF反馈信号而调整的线性预失真器（68）来补偿变形。在接收器（14）中通过产生RF信号（106）来补偿发射信号泄漏，该RF抵消信号（106）当与RF中的接收信号（44）组合时至少部分地消除泄漏到接收器中的发射信号部分（56,58）信号（44）。可以数字地取消残留泄漏信号及其互调产物。

10. 发明申请

US20140065986A1 Transmitter With Peak-Tracking PAPR Reduction and Method Therefor 有权
标题翻译：具有峰值跟踪PAPR的发射机及其方法
公开(公告)号：US20140065986A1
公开(公告)日：2014-03-06
申请号：US13597762
申请日：2012-08-29
申请人： Ronald Duane McCallister
发明人： Ronald Duane McCallister
IPC分类号： H04B1/02
CPC分类号： H03F1/3247 , H03F1/0266 , H03F3/193 , H03F3/245 , H03F2200/102
摘要： A transmitter (20) includes a peak reduction section (30), a predistorter (98), and an amplifying section (102) biased by a variable bias signal generator (118). The peak reduction section (30) is controlled by a signal magnitude threshold (36) that defines maximum magnitudes for local peaks (32) of a reduced-peak communication signal (38). The bias signal generator (118) is controlled by a bias control signal (110). Both the signal magnitude threshold (36) and the bias control signal (110) are derived from a common reduced bandwidth (50) peak-tracking signal (42). The peak-tracking signal (42) is derived from an inflated-peak communication signal (26). The predistorter (98) applies distortion to the reduced-peak communication signal (38) that is configured, at least in part, by the bias control signal (110).
摘要翻译：发射机（20）包括峰值减小部分（30），预失真器（98）和由可变偏置信号发生器（118）偏置的放大部分（102）。峰值降低部分（30）由对峰值通信信号（38）的局部峰值（32）定义最大幅度的信号幅度阈值（36）来控制。偏置信号发生器（118）由偏置控制信号（110）控制。信号幅度阈值（36）和偏置控制信号（110）都是从共同的降低带宽（50）峰值跟踪信号（42）导出的。峰值跟踪信号（42）从充气峰值通信信号（26）导出。预失真器（98）对至少部分由偏置控制信号（110）配置的减小峰值通信信号（38）施加失真。

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