公开(公告)号：US20130022152A1

公开(公告)日：2013-01-24

申请号：US13188904

申请日：2011-07-22

申请人： Neil McGowan ,  Marthuinus Willem DA SILVEIRA

发明人： Neil McGowan ,  Marthuinus Willem DA SILVEIRA

IPC分类号： H04B7/02

CPC分类号： H01Q1/246 ,  H01Q21/08 ,  H01Q21/26

摘要： A wireless communication system that includes a robust transmitter array. The robust transmitter array includes an antenna array system with at least one column, at least one antenna element, and at least one polarization, a plurality of transmitter devices to transmit analog voice/data signals through the antenna array system, and a signal processor. The signal processor modifies two or more input signals in the event of a transmitter device failure such that substantially similar amounts of each of the two or more input signals are output from the transmitter system to the antenna array system, and wherein substantially less transmitted signal power is lost than in the case wherein the signal processor does not modify the two or more input signals in the event of a transmitter failure.

摘要翻译： 一种包括鲁棒发射机阵列的无线通信系统。 鲁棒的发射机阵列包括具有至少一列，至少一个天线元件和至少一个极化的天线阵列系统，用于通过天线阵列系统传输模拟语音/数据信号的多个发射机设备，以及信号处理器。 在发射机设备故障的情况下，信号处理器修改两个或更多个输入信号，使得两个或多个输入信号中的每一个的基本相似的量从发射机系统输出到天线阵列系统，并且其中基本上较少的发射信号功率 在信号处理器在发射机故障的情况下不修改两个或更多个输入信号的情况下丢失。

公开(公告)号：US08331466B2

公开(公告)日：2012-12-11

申请号：US12245047

申请日：2008-10-03

申请人： Ning Guo ,  Neil McGowan ,  Bradley John Morris

发明人： Ning Guo ,  Neil McGowan ,  Bradley John Morris

IPC分类号： H04K1/10

CPC分类号： H04L27/2623 ,  H04L27/2624

摘要： A method and system adaptively reduce a peak-to-average power ratio in a communication system. Energy is clipped from at least one peak of a modulated signal. The modulated signal includes a plurality of sub-carriers. At least one data sub-carrier is adaptively selected for peak-to-average power ratio reduction use based on known scheduling information. The clipped energy is distributed among at least one data sub-carrier.

摘要翻译： 一种方法和系统自适应地降低通信系统中的峰均功率比。 能量被从调制信号的至少一个峰限制。 调制信号包括多个子载波。 基于已知的调度信息，至少一个数据子载波被自适应地选择用于峰值到平均功率比减少使用。 剪切的能量分布在至少一个数据子载波中。

公开(公告)号：US20120307743A1

公开(公告)日：2012-12-06

申请号：US13150565

申请日：2011-06-01

申请人： Neil McGowan ,  Marthuinus Willem DA SILVEIRA

发明人： Neil McGowan ,  Marthuinus Willem DA SILVEIRA

IPC分类号： H04W72/04

CPC分类号： H04W74/0833 ,  H04L27/265 ,  H04L27/2655

摘要： Methods and devices for extracting a RACH preamble using as input a number of Fast Fourier Transformed symbols, in order to extract a random access channel (RACH) preamble from a signal received in a base station from a user device, in a radio communication system, are provided. An initial cyclic prefix (symbol CP) is removed prior to performing FFT on symbols. After (1) selecting from the FFT of a symbol frequencies corresponding to the RACH band all other non-RACH frequency bins having been set to zero, (2) shifting the signal to baseband and (3) performing a FFT on the baseband signal, a phase adjustment is performed to compensate for group delays due to symbol CP gaps occurring when generating the baseband signal, the phase adjustment being determined individually for each symbol.

摘要翻译： 用于提取RACH前同步码的方法和装置，以便使用多个快速傅立叶变换符号来输入，以便在无线电通信系统中从用户装置在基站接收的信号中提取随机接入信道（RACH）前导码， 被提供。 在对符号执行FFT之前，删除初始循环前缀（符号CP）。 在（1）从FFT中选择与RACH频带对应的符号频率，所有其他非RACH频率仓已被设置为零，（2）将信号移位到基带，和（3）对基带信号执行FFT， 执行相位调整以补偿由于在生成基带信号时发生的符号CP间隙引起的组延迟，对于每个符号单独确定相位调整。

公开(公告)号：US20120076019A1

公开(公告)日：2012-03-29

申请号：US13126411

申请日：2010-09-24

申请人： Neil McGowan ,  Peter Deane

发明人： Neil McGowan ,  Peter Deane

IPC分类号： H04L12/26

CPC分类号： H01Q1/523 ,  H01Q3/2617

摘要： Methods and devices for removing cross coupling effects between elements of an antenna array (110) are provided. Cross coupling coefficients between all pairs of antenna elements of the antenna array are predetermined to minimize a total power in theoretical null points calculated without considering the cross element effects. A transceiver (100) includes a multiplexing block (105) configured to receive data signals to be transmitted via the antenna elements and to output to at least one of the antenna elements, a sum signal including (i) a data signal, which data signal is designated for the at least one antenna element, and (ii) a linear combination of data signals designated for other antenna elements of the antenna array, each of the data signals in the linear combination being weighted by a respective cross coupling coefficient between the at least one antenna element and an antenna element emitting the each of the data signals.

摘要翻译： 提供了用于去除天线阵列（110）的元件之间的交叉耦合效应的方法和装置。 预先确定天线阵列的所有天线元件对之间的交叉耦合系数以最小化在不考虑交叉元素效应的情况下计算的理论空点的总功率。 收发器（100）包括多路复用块（105），被配置为接收要通过天线元件传输的数据信号并将至少一个天线元件输出到和信号，该和信号包括（i）数据信号，哪个数据信号 被指定用于至少一个天线元件，以及（ii）被指定用于天线阵列的其他天线元件的数据信号的线性组合，线性组合中的每个数据信号由相应的交叉耦合系数 至少一个天线元件和发射每个数据信号的天线元件。

公开(公告)号：US07782827B2

公开(公告)日：2010-08-24

申请号：US10642649

申请日：2003-08-19

申请人： Peter Deane ,  Abdelgader Legnain ,  Neil McGowan ,  Marthinus Da Silveira

发明人： Peter Deane ,  Abdelgader Legnain ,  Neil McGowan ,  Marthinus Da Silveira

IPC分类号： H04H20/67 ,  H04B7/216

CPC分类号： H04B1/40 ,  H04B1/18

摘要： A method and apparatus for processing multiple signals at a common frequency combined into a single radio frequency cable and subsequently recovering the signals without significant losses, distortion, or cross-talk. The method and apparatus includes processing multiple signals at a common frequency fed through a single radio frequency (RF) cable with or without one or more amplifiers and utilized for either forward or reverse link transmissions. The invention enables a single power amplifier to amplify multiple RF signals that occupy a common frequency channel and after amplification splitting these signals into amplified copies of the originals. The amplified signals may be sent to different antenna ports to illuminate different base station sectors if required. The signal splitting function is performed at the antenna masthead such that this method reduces the number of feeder cables running up the antenna tower by a factor of N, where N is the number of common frequency signals (e.g., the number of sectors) amplified by the single power amplifier. This invention enables a single power amplifier to simultaneously provide all the radio frequency signals necessary to feed a general N input phased array antenna system and form multiple antenna beams uniquely for several individual users simultaneously.

摘要翻译： 一种用于以合并到单个射频电缆中的共同频率处理多个信号并且随后恢复信号而没有显着损失，失真或串扰的方法和装置。 该方法和装置包括在具有或不具有一个或多个放大器的单个射频（RF）电缆馈送的公共频率处理多个信号，并用于正向或反向链路传输。 本发明使得单个功率放大器可以放大占用公共频率信道的多个RF信号，并且在将这些信号分解成原稿的放大副本之后。 如果需要，放大的信号可以被发送到不同的天线端口以照亮不同的基站扇区。 信号分离功能在天线标头上进行，使得该方法将以天线塔运行的馈电电缆的数量减少N倍，其中N是通过频率信号放大的共频率信号（例如，扇区数） 单功率放大器。 本发明使得单个功率放大器能够同时提供馈送一般N输入相控阵天线系统所必需的所有射频信号，同时为多个个体用户同时形成多个天线波束。

公开(公告)号：US20090041109A1

公开(公告)日：2009-02-12

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： H04B1/66

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（LN）-S尾数位和2N + S指数位来表示复数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位均匀量化相比 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。

公开(公告)号：US07457641B1

公开(公告)日：2008-11-25

申请号：US11286415

申请日：2005-11-25

申请人： Abdelgader Legnain ,  Peter Deane ,  Neil McGowan

发明人： Abdelgader Legnain ,  Peter Deane ,  Neil McGowan

IPC分类号： H04Q7/20

CPC分类号： H04W72/1231 ,  H04W16/28

摘要： A method and apparatus for transmitting wireless data to users which increases the wireless capacity for data transmissions within a sector served by a base station is disclosed. Accordingly, the sector is subdivided into a plurality of beams, typically by means of beam forming antennas, and the user data to be transmitted is time division multiplexed by scheduling the data into timeslots for transmission via the beams. Capacity is thus increased by decreasing network interference and/or transmitting data to more than one user at the same time by means of the multiple beams, and time division multiplexing the data. Preferably multiple users can be scheduled on multiple beams simultaneously in order to increase capacity. Preferably the same user can be allocated more than one beam if the radio conditions warrant. Such a system is optimized for data and carries out the following steps: a. Evaluating the reverse link wireless conditions for each user; b. responsive to step a, generating information defining the beam or beams to be utilized by each user; c. generating a Scheduler Metric (SM) for every user; d. scheduling each of the n beams based on the SM and said information for each user; and e. transmitting data scheduled in step d on said n beams.

摘要翻译： 公开了一种用于向用户发送无线数据的方法和装置，其增加了由基站服务的扇区内的数据传输的无线容量。 因此，通常通过波束形成天线将该扇区细分为多个波束，并且通过将该数据调度到用于经由波束传输的时隙中，待传输的用户数据被时分多路复用。 因此通过减少网络干扰和/或通过多个波束同时向多个用户发送数据并且对数据进行时分复用来增加容量。 优选地，多个用户可以同时在多个波束上进行调度，以便增加容量。 如果无线电条件允许，则优选地，相同的用户可以被分配多于一个波束。 这样的系统针对数据进行了优化，并执行以下步骤：a。 评估每个用户的反向链路无线条件; b。 响应于步骤a，产生定义要由每个用户使用的波束或波束的信息; C。 为每个用户生成调度表度量（SM）; d。 基于SM和每个用户的所述信息调度n个光束中的每一个; 和e。 在所述n个波束上发送在步骤d中调度的数据。

公开(公告)号：US07424039B2

公开(公告)日：2008-09-09

申请号：US10642686

申请日：2003-08-19

申请人： Peter Deane ,  Abdelgader Legnain ,  Marthinus Da Silveira ,  Neil McGowan

发明人： Peter Deane ,  Abdelgader Legnain ,  Marthinus Da Silveira ,  Neil McGowan

IPC分类号： H04J3/04

CPC分类号： H04J13/0003 ,  H01Q1/246 ,  H01Q3/26

摘要： A method and apparatus for processing multiple signals at a common frequency fed through a single radio frequency (RF) cable with or without one or more amplifiers and utilized for either forward or reverse link transmissions. The invention enables a single power amplifier to amplify multiple RF signals that occupy a common frequency channel and after amplification splitting these signals into amplified copies of the originals. The amplified signals may be sent to different antenna ports to illuminate different base station sectors if required. The signal splitting function is performed at the antenna masthead such that this method reduces the number of feeder cables running up the antenna tower by a factor of N, where N is the number of common frequency signals (e.g., the number of sectors) amplified by the single power amplifier. This invention enables a single power amplifier to simultaneously provide all the radio frequency signals necessary to feed a general N input phased array antenna system and form multiple antenna beams uniquely for several individual users simultaneously.

摘要翻译： 一种用于在具有或不具有一个或多个放大器的单个射频（RF）电缆馈送的公共频率处理多个信号并用于正向或反向链路传输的方法和装置。 本发明使得单个功率放大器可以放大占用公共频率信道的多个RF信号，并且在将这些信号分解成原稿的放大副本之后。 如果需要，放大的信号可以被发送到不同的天线端口以照亮不同的基站扇区。 信号分离功能在天线标头上进行，使得该方法将以天线塔运行的馈电电缆的数量减少N倍，其中N是通过频率信号放大的共频率信号（例如，扇区数） 单功率放大器。 本发明使得单个功率放大器能够同时提供馈送一般N输入相控阵天线系统所必需的所有射频信号，同时为多个个体用户同时形成多个天线波束。

公开(公告)号：US20070153936A1

公开(公告)日：2007-07-05

申请号：US11686352

申请日：2007-03-14

申请人： Neil McGowan ,  Marthinus Da Silveira ,  Mihai Parvan ,  Matthew Conrod

发明人： Neil McGowan ,  Marthinus Da Silveira ,  Mihai Parvan ,  Matthew Conrod

IPC分类号： H04L27/00

CPC分类号： H04B1/0483 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/34 ,  H03F3/24 ,  H03F3/602 ,  H03F2200/204 ,  H03F2200/393 ,  H03F2200/451 ,  H04B2001/0433

摘要： A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulated and amplified radio frequency (RF) signals just prior to propagation from an antenna, can determine errors produced by the analog circuitry including the analog hybrid matrix and may compensate for the same by introducing an amplitude, phase and delay adjustment (in the digital domain) into output digital waveform signals to compensate for the error introduced downstream to the baseband processor.

摘要翻译： 分区单元中的前向链路发射机还包括具有传统基带信号数字处理电路的基带处理器，此外还包括数字混合矩阵（向量和延迟补偿变换模块），其相位和幅度（矢量）和延迟可被调整以补偿 由反馈电路引入和检测的下游误差。 因此，基带处理器可以通过监测在从天线传播之前产生调制和放大的射频（RF）信号的模拟混合矩阵的输出，从而可以确定包括模拟混合矩阵的模拟电路产生的误差，并且可以补偿 通过将幅度，相位和延迟调整（在数字域中）引入到输出数字波形信号中来补偿下行到基带处理器的误差也是一样的。

公开(公告)号：US20070140101A1

公开(公告)日：2007-06-21

申请号：US11300508

申请日：2005-12-15

申请人： Ning Guo ,  Neil McGowan ,  Gary Boudreau

发明人： Ning Guo ,  Neil McGowan ,  Gary Boudreau

IPC分类号： H04J9/00 ,  H04J11/00

CPC分类号： H04L27/2618

摘要： A method and apparatus for reducing the peak to average power ratio of an OFDM signal. The method involves operating on the signal only after it is converted to the time domain where the signal is compared to a power threshold and any signal above the power threshold is considered undesirable. A reduced signal is produced by reducing the magnitude to the power threshold whenever it exceeds that threshold. The delta between the original signal and reduced signal is the clipped signal. The clipped signal is multiplied by a g-function, and then subtracted from the original signal to produce a first iteration of a peak-reduced signal. The process can then be repeated using the first peak-reduced signal in place of the original signal to produce the second iteration of a peak-reduced signal. This process can be repeated each time bringing the peaks closer to the power threshold. The g-function can be defined either to allow for per-symbol cyclic signal processing or non-cyclic processing that is symbol time independent.

摘要翻译： 一种降低OFDM信号的峰均功率比的方法和装置。 该方法仅在将信号转换为信号与功率阈值进行比较的时域之后对信号进行操作，并且认为任何高于功率阈值的信号都是不合需要的。 通过在超过该阈值时将功率阈值的幅度减小来产生降低的信号。 原始信号和减小信号之间的差值是限幅信号。 剪切信号乘以g函数，然后从原始信号中减去，以产生峰值降低信号的第一次迭代。 然后可以使用第一峰值降低信号代替原始信号来重复该过程，以产生峰值降低信号的第二次迭代。 每次使峰值更接近功率阈值时，可以重复该过程。 g函数可以被定义为允许符号时间无关的每符号循环信号处理或非循环处理。