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11.发明授权Correlation using only selected chip position samples in a wireless communication system 有权在无线通信系统中仅使用选定的码片位置样本的相关性公开(公告)号：US06996162B1
公开(公告)日：2006-02-07
申请号：US09679487
申请日：2000-10-04
CPC分类号： H04B1/7077 , H04B1/70755 , H04B1/7083
摘要： A method (70) of operating a wireless receiver (UST). The method receives a wireless communicated signal, wherein the signal comprises a first synchronization channel component. The method also correlates a synchronization channel value (PSC) to the signal to produce a plurality of correlation samples in response to a correlation between the synchronization channel value and the signal. Further, the method compares (72) the plurality of correlation samples to a threshold (τ) and stores as a first set of correlation samples selected ones of the plurality of correlation samples that exceed the threshold and are within a first time sample period, wherein each of the correlation samples in the first set has a corresponding sample time relative to the first time sample period. Finally, the method combines (74) a second set of correlation samples with the first set of correlation samples.
摘要翻译： 一种操作无线接收机（UST）的方法（70）。 该方法接收无线通信信号，其中信号包括第一同步信道分量。 该方法还将同步信道值（PSC）与信号相关联，以响应于同步信道值和信号之间的相关性而产生多个相关样本。 此外，该方法将（72）多个相关采样与阈值（τ）进行比较，并且存储作为超过阈值并且在第一时间采样周期内的多个相关样本中选择的一个相关样本的第一组相关样本，其中 第一组中的每个相关样本具有相对于第一时间采样周期的相应采样时间。 最后，该方法将第二组相关样本与第一组相关样本组合（74）。
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12.发明授权公开(公告)号：US06970495B1
公开(公告)日：2005-11-29
申请号：US09634053
申请日：2000-08-08
IPC分类号： H04B1/713
CPC分类号： H04B1/713
摘要： The frequency hopping pattern of a first wireless communication device is modified such that each transmission (73) to a second wireless communication device is on a frequency (MSj+1) that the second device's normal frequency hopping pattern specifies for one of the second device's next several transmissions to the first device. This permits the second device to make quality measurements (54) on a frequency that the second device will soon use (51) for transmission to the first device.
摘要翻译： 修改第一无线通信设备的跳频模式，使得到第二无线通信设备的每个传输（73）处于第二设备的正常跳频模式的频率（MS＆lt; j + 1＆gt;） 指定第二设备的下一个传输到第一设备之一。 这允许第二设备对第二设备将很快使用的频率（51）进行质量测量（54）以传输到第一设备。
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13.发明申请Integrated circuits, systems, apparatus, packets and processes utilizing path diversity for media over packet applications 有权集成电路，系统，设备，分组和过程，利用分组应用中的媒体利用路径分集公开(公告)号：US20050254428A1
公开(公告)日：2005-11-17
申请号：US11175411
申请日：2005-07-06
CPC分类号： H04L41/08 , H04L29/06027 , H04L41/0206 , H04L41/024 , H04L41/12 , H04L45/00 , H04L45/24 , H04L45/56 , H04L47/2416 , H04L65/105 , H04L65/4076 , H04L65/602 , H04L65/605 , H04L65/80 , H04L67/14 , H04L69/40 , H04W28/04 , H04W40/02 , H04W40/20 , H04W40/246 , H04W84/042 , H04W88/08 , H04W88/14 , H04W88/16
摘要： In one form of the invention, a process of sending real-time information from a sender computer (103) to a receiver computer (105) coupled to the sender computer (103) by a packet network (100) wherein packets (111,113) sometimes become lost, includes steps of directing (441) packets (111) containing the real-time information from the sender computer (103) by at least one path (119) in the packet network (100) to the receiver computer (105), and directing packets (113) containing information dependent on the real-time information from the sender computer (103) by at least one path diversity path (117) in the packet network (100) to the same receiver computer (105). Other forms of the invention encompass other processes, improved packets and packet ensembles (111,113), integrated circuits (610), chipsets (DSP 1721, MCU), computer cards (1651), information storage articles (1511,1611), systems, computers (103,105), gateways (191,193), routers (131,133), cellular telephone handsets (181,189), wireless base stations (183,187), appliances (1721,1731,1741), and packet networks (100), and other forms as disclosed and claimed.
摘要翻译： 在本发明的一种形式中，发送计算机（103）将实时信息发送到分组网络（100）耦合到发送方计算机（103）的接收机（105）的过程，其中分组（111,113）有时 包括将包含来自发送者计算机（103）的实时信息的分组（441）通过分组网络（100）中的至少一个路径（119）引导到接收机计算机（105）的步骤， 以及将分组网络（100）中的至少一个路径分集路径（117）包含取决于来自发送者计算机（103）的实时信息的信息的分组（113）导向到同一接收机计算机（105）。 本发明的其他形式包括其他过程，改进的分组和分组集合（111,113），集成电路（610），芯片组（DSP1721，MCU），计算机卡（1651），信息存储产品（1511,1611），系统，计算机 （103,105），网关（191,193），路由器（131,133），蜂窝电话手机（181,189），无线基站（183,187），设备（1721,1731,1741）和分组网络（100） 声称。
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14.发明授权Discrete multitone modulation with reduced peak-to-average ratio using unloaded subchannels 有权使用无负载子信道降低峰均比的离散多音调制公开(公告)号：US06954505B2
公开(公告)日：2005-10-11
申请号：US10034951
申请日：2001-12-27
CPC分类号： G06Q30/02 , H04L27/2623
摘要： A transceiver (100) such as used in Discrete Multitone (DMT) modulation of digital signals for communication, such as in a DSL modem communications system, is described. The transceiver (100) includes a function (119) by way of which unloaded subchannels are encoded with a clip prevention signal. The clip prevention signal is derived to avoid clipping by an amplifier (18) after modulation into the time domain, upsampling, and filtering. The effects of the upsampling and filtering are considered in deriving the clip prevention signal, by considering the upsampling and filtering as a polyphase combination, and using the filter response for each phase. Frequency domain and time domain update alternatives are disclosed.
摘要翻译： 描述了诸如在DSL调制解调器通信系统中用于通信的数字信号的离散多音（DMT）调制中的收发器（100）。 收发器（100）包括功能（119），通过该功能，通过剪辑防止信号对未加载的子信道进行编码。 导出剪辑防止信号，以避免在调制到时域之后由放大器（18）进行削波，上采样和滤波。 通过考虑上采样和滤波作为多相组合，并且对每个相位使用滤波器响应，在推导剪辑防止信号时考虑上采样和滤波的影响。 公开了频域和时域更新的替代方案。
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15.发明授权公开(公告)号：US06831956B1
公开(公告)日：2004-12-14
申请号：US09669813
申请日：2000-09-26
IPC分类号： H04B1707
CPC分类号： H04B1/7113
摘要： A wireless receiver (UST). The receiver comprises at least one antenna (ATU) for receiving a plurality of frames (FR) in a form of a plurality of paths. Each of the plurality of frames comprises a plurality of time slots (SLN), and each of the plurality of time slots comprises a plurality of symbols. Further, each of the plurality of paths has a corresponding sample position, wherein the plurality of symbols comprise a primary synchronization code symbol (PSC). The receiver further comprises circuitry (52) for correlating a primary synchronization code across a group of the plurality of symbols and circuitry (52) for identifying a plurality of path positions within the group. Each of the plurality of path positions corresponds to a respective one of a plurality of largest-amplitude paths represented within the group as detected in response to the circuitry for correlating. The receiver further comprises circuitry (56) for defining a plurality of sub-windows. Each of the plurality of sub-windows comprises a plurality of sample positions, and each of the plurality of sub-windows includes at least one of the plurality of identified path positions. Finally, the receiver further comprises circuitry (54, 58) for combining paths selected from the sample positions within the plurality of sub-windows.
摘要翻译： 无线接收器（UST）。 接收机包括用于接收多个路径形式的多个帧（FR）的至少一个天线（ATU）。 多个帧中的每一个包括多个时隙（SLN），并且多个时隙中的每一个包括多个符号。 此外，多个路径中的每一个具有对应的采样位置，其中多个符号包括主同步码符号（PSC）。 接收机还包括电路（52），用于在一组多个符号和电路（52）之间相互关联主同步码，用于识别组内的多个路径位置。 多个路径位置中的每一个对应于响应于用于相关的电路检测到的在组内表示的多个最大幅度路径中的相应一个路径位置。 接收器还包括用于限定多个子窗口的电路（56）。 多个子窗口中的每一个包括多个采样位置，并且多个子窗口中的每一个子窗口包括多个识别的路径位置中的至少一个。 最后，接收机还包括用于组合从多个子窗口内的样本位置选择的路径的电路（54,58）。
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16.发明授权Variable scaling of 16-bit fixed point fast fourier forward and inverse transforms to improve precision for implementation of discrete multitone for asymmetric digital subscriber loops 失效16位固定点快速傅立叶变换的正向变换和逆变换，以提高用于非对称数字用户环路的离散多音频实现的精度
公开(公告)号：US6137839A
公开(公告)日：2000-10-24
申请号：US742226
申请日：1996-10-31
IPC分类号： H04L1/00 , H04L1/16 , H04L5/02 , H04L5/14 , H04L25/03 , H04L25/49 , H04L27/26 , H04M11/06 , H04K1/10
CPC分类号： H04M11/062 , H04L1/0003 , H04L25/03 , H04L25/03343 , H04L25/4921 , H04L27/265 , H04L5/023 , H04L5/1438 , H04M11/06 , H04L2025/03414 , H04L2025/03611 , H04L27/2613 , H04L27/2655
摘要： A discrete multitone (DMT) digital subscriber loop (xDSL) telecommunication system has a transmitter portion including a bit encoder, inverse fast Fourier transform (FFT), parallel-to-serial converter, digital-to-analog converter and line driver for transmitting data signals to a twisted pair telephone line and a receiver portion including an analog-to-digital converter, serial-to-parallel converter, forward FFT and bit decoder for receiving data signals from the twisted pair telephone line. The FFT's are implemented in 19-bit precision using a fixed point 16-bit processor. At each FFT stage, the number of sign bits in the FFT input data is examined to determine whether overflow is possible during multiply and add operations. The input data is downscaled by right shifting one or two bits if overflow is possible. If downscaling occurred, the output data is rescaled after completion of the FFT operation. If overflow is not possible, no scaling is done. By using variable scaling to downscale only when necessary, better overall precision is maintained.
摘要翻译： 离散多音（DMT）数字用户环路（xDSL）电信系统具有包括比特编码器，快速傅里叶逆变换（FFT），并行到串行转换器，数模转换器和用于发送数据的线路驱动器的发射机部分 信号到双绞线电话线和包括模数转换器，串并转换器，正向FFT和位解码器的接收器部分，用于从双绞线电话线接收数据信号。 FFT使用固定点16位处理器以19位精度实现。 在每个FFT阶段，检查FFT输入数据中的符号位的数量，以确定在乘法和加法运算期间是否可能溢出。 如果可以溢出，则通过右移一位或两位来对输入数据进行缩减。 如果发生降频，则在FFT操作完成后，输出数据重新定标。 如果无法进行溢出，则不进行缩放。 通过使用可变缩放来缩小尺寸，只有在必要时才能保持更好的整体精度。
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公开(公告)号：US08134996B2
公开(公告)日：2012-03-13
申请号：US11459313
申请日：2006-07-21
IPC分类号： H04J3/06
CPC分类号： H04L27/2613 , H04J11/0069 , H04L5/0007 , H04L27/2657 , H04L27/2662
摘要： The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
摘要翻译： 本发明提供一种操作基站发射机的方法。 在一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分对于所有小区是公共的，并且次要部分是小区特定的，并且发送蜂窝下行链路同步信号。 在另一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主信号中的相应一个信号。 该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。 本发明还提供了一种操作用户设备的方法。 该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中辅助部分提供小区特定参数并且识别和提取次要部分。
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公开(公告)号：US20080019350A1
公开(公告)日：2008-01-24
申请号：US11459313
申请日：2006-07-21
IPC分类号： H04J3/06
CPC分类号： H04L27/2613 , H04J11/0069 , H04L5/0007 , H04L27/2657 , H04L27/2662
摘要： The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
摘要翻译： 本发明提供一种操作基站发射机的方法。 在一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分对于所有小区是公共的，并且次要部分是小区特定的，并且发送蜂窝下行链路同步信号。 在另一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主信号中的相应一个信号。 该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。 本发明还提供了一种操作用户设备的方法。 该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中辅助部分提供小区特定参数并且识别和提取次要部分。
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19.发明授权Parallel concatenated trellis-coded modulation with asymmetric signal mapping 有权具有不对称信号映射的并行级联网格编码调制公开(公告)号：US07180955B2
公开(公告)日：2007-02-20
申请号：US09919191
申请日：2001-07-31
申请人： Eko N. Onggosanusi , Alan Gatherer
发明人： Eko N. Onggosanusi , Alan Gatherer
IPC分类号： H04L5/12
CPC分类号： H04L1/006 , H03M13/258 , H03M13/3988 , H04L1/0041 , H04L1/0066
摘要： Parallel concatenated trellis-coding modulation is accomplished by producing coded bits (21) from uncoded bits and also producing an interleaved version (22) of the coded bits from the uncoded bits. A first coded bits-to-signal mapping (mapping 1) is applied to the coded bits to produce a first output signal (S11), and a second coded bits-to-signal mapping (mapping 2) is applied to the interleaved version of the coded bits to produce a second output signal (S22), wherein the second coded bits-to-signal mapping differs from the first coded bits-to-signal mapping.
摘要翻译： 通过从未编码比特产生编码比特（21）并且还从未编码比特产生编码比特的交织版本（22）来实现并行级联网格编码调制。 将第一编码比特到信号映射（映射1）应用于编码比特以产生第一输出信号（S 11> 11）和第二编码比特到信号映射（映射2 ）被施加到编码比特的交织版本以产生第二输出信号（S 22），其中第二编码比特到信号映射与第一编码比特到信号映射不同 。
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20.发明授权Beam forming for transmit using bluetooth modified hopping sequences (BFTBMH) 有权使用蓝牙修改的跳频序列（BFTBMH）进行发送的波束形成公开(公告)号：US07164704B1
公开(公告)日：2007-01-16
申请号：US09489668
申请日：2000-01-24
IPC分类号： H04B1/713
CPC分类号： H01Q3/22 , H01Q1/2291 , H04B1/713 , H04B7/0615 , H04B7/0697 , H04B7/0848 , H04W84/18
摘要： A communication circuit (28) is designed with a signal processing circuit (370) arranged to produce a first plurality of data signals and receive a second plurality of data signals. A transmit circuit (364) is coupled to receive the first plurality of data signals and transmit each data signal of the first plurality of data signals on a respective transmit frequency in a predetermined sequence of transmit frequencies. A receive circuit (362) is coupled to receive each data signal of the second plurality of data signals from a remote transmitter on the respective transmit frequency in the predetermined sequence. The receive circuit applies the second plurality of data signals to the signal processing circuit.
摘要翻译： 通信电路（28）被设计成具有被配置为产生第一多个数据信号并接收第二多个数据信号的信号处理电路（370）。 发射电路（364）被耦合以接收第一多个数据信号，并且以预定的发射频率的顺序在相应的发射频率上发射第一多个数据信号的每个数据信号。 接收电路（362）被耦合以便以预定顺序在相应发射频率上从远程发射机接收第二多个数据信号的每个数据信号。 接收电路将第二多个数据信号施加到信号处理电路。
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