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1. 发明申请

US20090225743A1 USING A NETWORK FREQUENCY REFERENCE TO AUGMENT TIMING SYNCHRONIZATION IN A WIRELESS BASE STATION 有权
标题翻译：使用网络频率参考无线基站中的连接时间同步
公开(公告)号：US20090225743A1
公开(公告)日：2009-09-10
申请号：US12044279
申请日：2008-03-07
申请人： Charles Nicholls , David Steer , Bradley John Morris
发明人： Charles Nicholls , David Steer , Bradley John Morris
IPC分类号： H04J3/06
CPC分类号： H04W56/00 , H04J3/0644 , H04J3/0647 , H04J3/0661 , H04J3/0688 , H04W56/0015 , H04W56/0035 , H04W84/045 , H04W92/045
摘要： A method and an apparatus for augmenting timing synchronization in a base station using backhaul network frequency synchronization are provided. When in a first mode an external time epoch reference synchronized with system time is used to synchronize the base station to system time. When in a second mode a network frequency reference recovered from a backhaul network link is used to maintain the timing synchronization.
摘要翻译：提供了一种使用回程网络频率同步来增强基站中的定时同步的方法和装置。当处于第一模式时，与系统时间同步的外部时间基准参考用于使基站与系统时间同步。当处于第二模式时，使用从回程网络链路恢复的网络频率参考来维持定时同步。

2. 发明授权

US08867520B2 Using a network frequency reference to augment timing Synchronization in a wireless base station 有权
标题翻译：使用网络频率参考来增加无线基站中的同步
公开(公告)号：US08867520B2
公开(公告)日：2014-10-21
申请号：US12044279
申请日：2008-03-07
申请人： Charles Nicholls , David Steer , Bradley John Morris
发明人： Charles Nicholls , David Steer , Bradley John Morris
IPC分类号： H04J3/06 , H04W56/00 , H04W84/04 , H04W92/04
CPC分类号： H04W56/00 , H04J3/0644 , H04J3/0647 , H04J3/0661 , H04J3/0688 , H04W56/0015 , H04W56/0035 , H04W84/045 , H04W92/045
摘要： A method and an apparatus for augmenting timing synchronization in a base station using backhaul network frequency synchronization are provided. When in a first mode an external time epoch reference synchronized with system time is used to synchronize the base station to system time. When in a second mode a network frequency reference recovered from a backhaul network link is used to maintain the timing synchronization.
摘要翻译：提供了一种使用回程网络频率同步来增强基站中的定时同步的方法和装置。当处于第一模式时，与系统时间同步的外部时间基准参考用于使基站与系统时间同步。当处于第二模式时，使用从回程网络链路恢复的网络频率参考来维持定时同步。

3. 发明授权

US08972359B2 Compact floating point delta encoding for complex data 有权
标题翻译：用于复杂数据的紧凑型浮点增量编码
公开(公告)号：US08972359B2
公开(公告)日：2015-03-03
申请号：US11303990
申请日：2005-12-19
申请人： Neil McGowan , Bradley John Morris , Edward Ken Kiu Mah
发明人： Neil McGowan , Bradley John Morris , Edward Ken Kiu Mah
IPC分类号： G06F17/00 , H03M7/30
CPC分类号： H04L1/0009 , H03M7/30 , H04L1/0028 , H04W88/08
摘要： A method and apparatus for compression of complex data signals within a telecommunications base station. The method includes representing a sample of a complex value discrete time signal using 2(L−N)−S mantissa bits and 2N+S exponent bits to realize peak output signal to noise ratios over a wider dynamic range compared to a conventional L-bit uniform quantization format. The increases in dynamic range and peak output SNR is achieved without increasing the average number of data bits per sample and with relatively simple computational effort.
摘要翻译：一种用于压缩电信基站内复杂数据信号的方法和装置。该方法包括使用2（L-N）-S尾数位和2N + S指数位来表示复值离散时间信号的样本，以在较宽的动态范围内实现峰值输出信噪比，与传统的L位均匀量化格式。实现动态范围和峰值输出SNR的增加，而不增加每个样本的平均数据位数，并以相对简单的计算工作量。

4. 发明授权

US08948291B2 Methods and systems for programmable digital down-conversion 有权
标题翻译：可编程数字下变频的方法和系统
公开(公告)号：US08948291B2
公开(公告)日：2015-02-03
申请号：US13130211
申请日：2010-11-18
申请人： Bradley John Morris , Lars Johan Thorebäck
发明人： Bradley John Morris , Lars Johan Thorebäck
IPC分类号： H03K7/06 , H03K9/06 , H04L27/38 , H04L27/06
CPC分类号： H04L25/02 , H04L27/06 , H04L27/38
摘要： A radio communication apparatus operable over a wide range of frequencies including a signal processing device is provided. The device performs an analog to digital conversion at a predetermined sample rate independent of a selected frequency band within the wide range of frequencies to generate a digital signal, and digitally processes the digital signal to output a data signal at baseband associated with the selected frequency band.
摘要翻译：提供了可在包括信号处理装置的宽频率范围内工作的无线电通信装置。该器件以宽频率范围内的所选频带独立于预定采样速率进行模数转换，以产生数字信号，并对数字信号进行数字处理以输出与所选频带相关联的数据信号。

5. 发明授权

US08576943B2 Linearization for a single power amplifier in a multi-band transmitter 有权
标题翻译：多频段发射机中单个功率放大器的线性化
公开(公告)号：US08576943B2
公开(公告)日：2013-11-05
申请号：US13228926
申请日：2011-09-09
申请人： Sai Mohan Kilambi , Bradley John Morris
发明人： Sai Mohan Kilambi , Bradley John Morris
IPC分类号： H04L25/49 , H03K7/00 , H03C3/04 , H03C1/04 , H04B1/10
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/3252 , H04B1/0475 , H04B2001/0425
摘要： A multi-band signal is generated by combining two or more input signals separated in frequency. The input signals are combined either before or after predistortion depending on the bandwidth of the multi-band signal. If the bandwidth of the multi-band signal is less than a predetermined bandwidth threshold, the input signals are combined and predistortion is applied to the combined signal to generate the multi-band signal. If the bandwidth of the multi-band signal is greater than the bandwidth threshold, the individual input signals are predistorted and subsequently combined to generate the multi-band signal.
摘要翻译：通过组合在频率上分离的两个或多个输入信号来产生多频带信号。根据多频带信号的带宽，输入信号在预失真之前或之后组合。如果多频带信号的带宽小于预定带宽阈值，则组合输入信号，并将预失真应用于组合信号以产生多频带信号。如果多频带信号的带宽大于带宽阈值，则各个输入信号被预失真并随后组合以产生多频带信号。

6. 发明申请

US20120275543A1 SELECTIVE PEAK POWER REDUCTION 有权
标题翻译：选择峰值功率降低
公开(公告)号：US20120275543A1
公开(公告)日：2012-11-01
申请号：US13541348
申请日：2012-07-03
申请人： Bradley John Morris , Arthur Thomas Gerald Fuller
发明人： Bradley John Morris , Arthur Thomas Gerald Fuller
IPC分类号： H04L25/49
CPC分类号： H04L25/49 , H04L27/2624
摘要： A communication system comprising signal processing circuitry and up-conversion circuitry. The signal processing circuitry is configured to: i) generate a first signal of a first modulation type and a second signal of a second modulation type; ii) combine the first and second signals to form a combined input signal; iii) generate peak reduction distortion based on the combined input signal; iv) select a portion of the peak reduction distortion that corresponds to a first frequency band; and v) apply the selected portion of the peak reduction distortion in the first frequency band of the combined input signal to provide a combined output signal. The up-conversion circuitry up-converts the combined output signal to an RF signal for transmission.
摘要翻译：一种包括信号处理电路和上转换电路的通信系统。信号处理电路被配置为：i）产生第一调制类型的第一信号和第二调制类型的第二信号; ii）组合第一和第二信号以形成组合的输入信号; iii）基于组合的输入信号产生峰值减小失真; iv）选择对应于第一频带的峰值减小失真的一部分; 以及v）将组合输入信号的第一频带中的峰值减小失真的选定部分应用于组合输出信号。上变频电路将组合输出信号上变频为RF信号进行传输。

7. 发明申请

US20120128082A1 Methods and Systems for Programmable Digital Down-Conversion 有权
标题翻译：可编程数字下变频的方法和系统
公开(公告)号：US20120128082A1
公开(公告)日：2012-05-24
申请号：US13130211
申请日：2010-11-18
申请人： Bradley John Morris , Lars Johan Thorebäck
发明人： Bradley John Morris , Lars Johan Thorebäck
IPC分类号： H04L27/00
CPC分类号： H04L25/02 , H04L27/06 , H04L27/38
摘要： A radio communication apparatus operable over a wide range of frequencies including a signal processing device is provided. The device performs an analog to digital conversion at a predetermined sample rate independent of a selected frequency band within the wide range of frequencies to generate a digital signal, and digitally processes the digital signal to output a data signal at baseband associated with the selected frequency band.
摘要翻译：提供了可在包括信号处理装置的宽频率范围内工作的无线电通信装置。该器件以宽频率范围内的所选频带独立于预定采样速率进行模数转换，以产生数字信号，并对数字信号进行数字处理以输出与所选频带相关联的数据信号。

8. 发明申请

US20120119811A1 Configurable Basis-Function Generation for Nonlinear Modeling 有权
标题翻译：非线性建模的可配置基函数生成
公开(公告)号：US20120119811A1
公开(公告)日：2012-05-17
申请号：US13119165
申请日：2010-11-16
申请人： Chunlong Bai , Bradley John Morris , Brian Lehman
发明人： Chunlong Bai , Bradley John Morris , Brian Lehman
IPC分类号： H03K5/08
CPC分类号： H03F1/3252 , H03F1/3247
摘要： Digital predistorter circuits with selectable basis function configurations are described. In some embodiments, an input scaling block is introduced prior to a basis function generator structure. The input scaling factor is based on the input signal's average power. In other embodiments, configurable connection coefficients are used to construct the orthogonal basis functions. Multiple sets of tap weights for the predistorter are maintained, each set corresponding to a given basis function configuration. In an example method for pre-distorting an input signal to compensate for distortion introduced by an electronic device, a statistic characterizing the input signal is calculated, and one of a pre-determined set of basis function configurations is selected, based on the statistic. A set of pre-distortion model weights corresponding to the selected basis function configuration are determined, after which the selected basis function configuration and the corresponding set of pre-distortion model weights are applied to the input signal.
摘要翻译：描述了具有可选基础功能配置的数字预失真器电路。在一些实施例中，在基函数发生器结构之前引入输入缩放块。输入比例因子基于输入信号的平均功率。在其他实施例中，可配置连接系数用于构建正交基函数。维护用于预失真器的多组抽头权重，每组对应于给定的基础功能配置。在用于对输入信号进行预失真以补偿由电子设备引入的失真的示例性方法中，计算表征输入信号的统计量，并且基于统计量来选择预定的一组基函数配置中的一个。确定与选择的基本功能配置相对应的一组预失真模型权重，之后将所选择的基本功能配置和相应的一组预失真模型权重应用于输入信号。

9. 发明授权

US07095278B2 Power amplifier arrangement and method for memory correction/linearization 有权
标题翻译：用于存储器校正/线性化的功率放大器布置和方法
公开(公告)号：US07095278B2
公开(公告)日：2006-08-22
申请号：US10900300
申请日：2004-07-28
申请人： Arthur Thomas Gerald Fuller , Bradley John Morris
发明人： Arthur Thomas Gerald Fuller , Bradley John Morris
IPC分类号： H03F1/26
CPC分类号： H03F1/0211 , H03F1/3258 , H03F2200/102
摘要： A device, system, and method are provided for a power amplifier arrangement. In embodiments of a Vdd modulated power amplifier arrangement, a memory correction block includes a Vdd predictor for predicting waveform distortions of a Vdd modulated power supply and a main-path corrector for pre-distorting the input to the power amplifier arrangement as a function of the input to the power amplifier arrangement, an input envelope signal determined as a function of the input to the power amplifier arrangement, and an output of the Vdd predictor. Embodiments of the invention provide for operating power amplifier arrangements having memory. In some embodiments, methods of training the Vdd predictor and the main-path corrector of the memory correction block are provided.
摘要翻译：提供了用于功率放大器装置的装置，系统和方法。在Vdd调制功率放大器装置的实施例中，存储器校正块包括用于预测Vdd调制电源的波形失真的Vdd预测器和用于将功率放大器装置的输入预失真的主路径校正器作为输入到功率放大器装置，确定为功率放大器装置的输入的函数的输入包络信号以及Vdd预测器的输出。本发明的实施例提供具有存储器的操作功率放大器装置。在一些实施例中，提供训练存储器校正块的Vdd预测器和主路径校正器的方法。

10. 发明授权

US06987953B2 Digital transmitter and method 有权
标题翻译：数字发射机和方法
公开(公告)号：US06987953B2
公开(公告)日：2006-01-17
申请号：US10403727
申请日：2003-03-31
申请人： Bradley John Morris , Arthur Thomas Gerald Fuller
发明人： Bradley John Morris , Arthur Thomas Gerald Fuller
IPC分类号： H04B1/02 , H04B1/04
CPC分类号： H04B1/0483
摘要： A transmitter and method is provided for digitally upconverting a baseband digital signal to a modulated intermediate frequency (IF) digital signal and sigma-delta modulating the IF digital signal. The baseband digital signal is split into N phases, as can be accomplished using a polyphase interpolation technique (polyphase filter), and modulated. The modulated N phases are not recombined and each phase is further modulated, as can be accomplished using a digital-to-digital sigma-delta modulator that generates digital output signals at the same rate. A high speed digital multiplexer multiplexes the digital output signals into a single bit stream at a higher rate for subsequent power amplification and RF transmission.
摘要翻译：提供了一种发射机和方法，用于将基带数字信号数字上变频到调制中频（IF）数字信号和Σ-Δ调制IF数字信号。基带数字信号被分为N个阶段，可以使用多相插值技术（多相滤波器）实现并进行调制。调制的N相不被重新组合，并且每个相位被进一步调制，这可以使用以相同速率产生数字输出信号的数字 - 数字Σ-Δ调制器来实现。高速数字多路复用器以更高的速率将数字输出信号复用为单个比特流，用于随后的功率放大和RF传输。

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