公开(公告)号：US08064494B2

公开(公告)日：2011-11-22

申请号：US10447631

申请日：2003-05-28

Applicant: Daniel R. Kindred ,  Jeffrey Levin ,  Steven J. Halter

Inventor： Daniel R. Kindred ,  Jeffrey Levin ,  Steven J. Halter

IPC: H04B1/00 ,  H04L27/00 ,  H04L27/06

CPC classification number: H04B1/7117 ,  H04B2201/70707

Abstract: Techniques for polling fingers on a channel (which are fingers for which symbols are to be combined) to determine the last finger on the channel. As each finger is polled, the polled finger compares its state information with the state information for the channel to determine whether or not it is the last finger on the channel. The polled finger may be deemed as the last finger if (1) the polled finger is the current last finger, (2) the polled finger is later than the current last finger, or (3) all fingers on the channel have been polled and none of the fingers indicated that it is the last finger. If the polled finger is deemed as the last finger then, (1) the channel state information is updated with the polled finger state information, and (2) the symbols provided by the polled finger may be marked as being ready for subsequent processing.

Abstract translation: 用于在通道（其是要组合符号的手指）上轮询手指以确定通道上的最后一个手指的技术。 当轮询每个手指时，被轮询的手指将其状态信息与通道的状态信息进行比较，以确定其是否是通道上的最后一个手指。 （1）轮询的手指是当前的最后一根手指，（2）轮询的手指比当前的最后一根手指晚，或者（3）通道上的所有手指已被轮询，并且 手指都不指示它是最后一根手指。 如果被轮询的手指被认为是最后一个手指，则（1）通过轮询的手指状态信息来更新信道状态信息，以及（2）被轮询的手指提供的符号可被标记为准备好进行后续处理。

公开(公告)号：US20110228816A1

公开(公告)日：2011-09-22

申请号：US13150371

申请日：2011-06-01

Applicant: Gary R. Lomp

Inventor： Gary R. Lomp

IPC: H04B1/69 ,  H04B7/00

CPC classification number: H04W52/04 ,  H03G3/3042 ,  H03G3/3047 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70707 ,  H04J13/00 ,  H04J13/0003 ,  H04J13/10 ,  H04J13/16 ,  H04W52/22 ,  H04W52/221 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/52 ,  H04W52/54

Abstract: A spread signal is produced having an adjustable spread spectrum. A data signal is provided for transmission. The data signal is processed to have a first spread spectrum. The processed first spread spectrum data signal is filtered to have one out of a plurality of spread spectrums. The filtering capable of producing a signal having a spread spectrum of any of the plurality of spread spectrums. The filtered one spread spectrum data signal is transmitted.

Abstract translation: 产生具有可调扩展频谱的扩展信号。 提供数据信号用于传输。 数据信号被处理成具有第一扩展频谱。 经处理的第一扩频数据信号被滤波以具有多个扩展频谱中的一个。 该滤波能够产生具有多个扩展频谱中的任一个的扩展频谱的信号。 滤波后的一个扩频数据信号被发送。

公开(公告)号：US20110206015A1

公开(公告)日：2011-08-25

申请号：US13099674

申请日：2011-05-03

Applicant: Jung-Lin Pan

Inventor： Jung-Lin Pan

IPC: H04B7/216 ,  H04W4/00

CPC classification number: H04B1/70757 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70707 ,  H04L25/03038 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

Abstract: A method and apparatus for reducing the processing rate when performing chip-level equalization (CLE) in a code division multiple access (CDMA) receiver which includes an equalizer filter. Signals received by at least one antenna of the receiver are sampled at M times the chip rate. Each sample stream is split into M sample data streams at the chip rate. Multipath combining is preferably performed on each split sample data stream. The sample data streams are then combined into one combined sample data stream at the chip rate. The equalizer filter performs equalization on the combined sample stream at the chip rate. Filter coefficients are adjusted by adding a correction term to the filter coefficients utilized by the equalizer filter for a previous iteration.

Abstract translation: 一种在包括均衡器滤波器的码分多址（CDMA）接收机中执行码片级均衡（CLE）时降低处理速率的方法和装置。 由接收机的至少一个天线接收的信号以芯片速率的M倍采样。 每个样本流以码片速率被分成M个采样数据流。 优选对每个分割样本数据流执行多路径组合。 然后将样本数据流以码片速率组合成一个组合的采样数据流。 均衡器滤波器以码片速率对组合的采样流进行均衡。 通过将校正项加到由均衡器滤波器用于先前迭代的滤波器系数来调整滤波器系数。

公开(公告)号：US07983320B2

公开(公告)日：2011-07-19

申请号：US10784747

申请日：2004-02-24

Applicant: Larry W. Fullerton ,  Ivan A. Cowie

Inventor： Larry W. Fullerton ,  Ivan A. Cowie

IPC: H04B1/69

CPC classification number: H04B1/71637 ,  H04B1/69 ,  H04B1/707 ,  H04B1/70753 ,  H04B1/708 ,  H04B1/71632 ,  H04B1/71635 ,  H04B1/7176 ,  H04B1/7183 ,  H04B14/026 ,  H04B2001/6908 ,  H04B2201/70707 ,  H04L27/2601 ,  H04L27/2602

Abstract: An impulse radio communications system using one or more subcarriers to communicate information from an impulse radio transmitter to an impulse radio receiver. The impulse radio communication system is an ultrawide-band time domain system. The use of subcarriers provides impulse radio transmissions added channelization, smoothing and fidelity. Subcarriers of different frequencies or waveforms can be used to add channelization of impulse radio signals. Thus, an impulse radio link can communicate many independent channels simultaneously by employing different subcarriers for each channel. The impulse radio uses modulated subcarrier(s) for time positioning a periodic timing signal or a coded timing signal. Alternatively, the coded timing signal can be summed or mixed with the modulated subcarrier(s) and the resultant signal is used to time modulate the periodic timing signal. Direct digital modulation of data is another form of subcarrier modulation for impulse radio signals. Direct digital modulation can be used alone to time modulate the periodic timing signal or the direct digitally modulated the periodic timing signal can be further modulated with one or more modulated subcarrier signals. Linearization of a time modulator permits the impulse radio transmitter and receiver to generate time delays having the necessary accuracy for impulse radio communications.

Abstract translation: 一种使用一个或多个子载波将脉冲无线电发射机的信息传送到脉冲无线电接收机的脉冲无线电通信系统。 脉冲无线电通信系统是一个超宽带时域系统。 使用副载波提供脉冲无线电传输，增加信道化，平滑和保真度。 可以使用不同频率或波形的子载波来增加脉冲无线电信号的信道化。 因此，脉冲无线电链路可以通过为每个信道采用不同的子载波来同时传送许多独立信道。 脉冲无线电使用调制子载波来定时周期性定时信号或编码定时信号。 或者，编码的定时信号可以与调制的子载波相加或混合，并且所得到的信号用于时间调制周期性定时信号。 数据的直接数字调制是脉冲无线电信号的另一种形式的子载波调制。 可以单独使用直接数字调制来对周期性定时信号进行时间调制，或者直接数字调制，可以用一个或多个调制子载波信号进一步调制周期性定时信号。 时间调制器的线性化允许脉冲无线电发射机和接收机产生具有脉冲无线电通信必要精度的时间延迟。

公开(公告)号：US20110164517A1

公开(公告)日：2011-07-07

申请号：US12989938

申请日：2009-04-28

Applicant: David Shepherd ,  Mark Reed ,  Zhennig Shi

Inventor： David Shepherd ,  Mark Reed ,  Zhennig Shi

IPC: H04L12/26

CPC classification number: H04L1/0048 ,  H04B1/707 ,  H04B2201/70707 ,  H04L1/005 ,  H04L25/03331 ,  H04W52/346 ,  H04W72/1205

Abstract: The invention concerns complexity management of a receiver in a multi-access/user communication system where interference exists. For example, but not limited to, multi-user detection at the receiver in the uplink of a code division multiple access DS/CDMA system. The invention provides a method for power management and decoding schedule optimisation by deriving (40) an extrinsic information transfer (EXIT) function for an interference canceller and a plurality of decoders. Then, determining (42) a power level for each of the plurality of users based on the derived EXIT functions; and then deriving (44) a decoding schedule for the plurality of decoders based on the derived EXIT functions and determined power levels. It is an advantage of the invention that optimization is broken into two parts. There is no trade-off between computational complexity (number of iterations) and the improvement in bit error rate performance at a given signal-to-noise ratio. Using the invention, large gains in receiver sensitivity (i.e. in power efficiency and/or spectrum efficiency therefore reducing interference from the terminals) and computational complexity can be achieved simultaneously.

Abstract translation: 本发明涉及存在干扰的多址/用户通信系统中的接收机的复杂度管理。 例如但不限于在码分多址DS / CDMA系统的上行链路中的接收机处的多用户检测。 本发明提供一种通过导出（40）干扰消除器和多个解码器的外在信息传输（EXIT）功能来对功率管理和解码进度优化的方法。 然后，基于导出的EXIT功能确定（42）多个用户中的每一个的功率电平; 然后基于导出的EXIT函数和确定的功率电平导出（44）多个解码器的解码调度。 本发明的优点是将优化分为两部分。 在给定的信噪比下，计算复杂度（迭代次数）和误码率性能的改善之间不存在折衷。 使用本发明，可以同时实现接收机灵敏度（即，功率效率和/或频谱效率，从而减少来自终端的干扰）的大增益和计算复杂度。

公开(公告)号：US07974997B2

公开(公告)日：2011-07-05

申请号：US11731174

申请日：2007-03-30

Applicant: Eliahou Arviv ,  Robert L. Lang ,  Yi-Chen Li ,  Oliver Ridler ,  Xiao-an Wang

Inventor： Eliahou Arviv ,  Robert L. Lang ,  Yi-Chen Li ,  Oliver Ridler ,  Xiao-an Wang

IPC: G06F17/16

CPC classification number: G06F17/16 ,  H04B1/707 ,  H04B2201/70707 ,  H04B2201/709727

Abstract: In one embodiment, a receiver including one or more signal-processing blocks and a hardware-based matrix co-processor. The one or more signal-processing blocks are adapted to generate a processed signal from a received signal. The hardware-based matrix co-processor includes two or more different matrix-computation engines, each adapted to perform a different matrix computation, and one or more shared hardware-computation units, each adapted to perform a mathematical operation. At least one signal-processing block is adapted to offload matrix-based signal processing to the hardware-based matrix co-processor. Each of the two or more different matrix-computation engines is adapted to offload the same type of mathematical processing to at least one of the one or more shared hardware-computation units.

Abstract translation: 在一个实施例中，接收机包括一个或多个信号处理块和基于硬件的矩阵协处理器。 所述一个或多个信号处理块适于从接收到的信号产生经处理的信号。 基于硬件的矩阵协处理器包括两个或更多个不同的矩阵计算引擎，每个矩阵计算引擎适于执行不同的矩阵计算，以及一个或多个共享硬件计算单元，每个共享硬件计算单元适于执行数学运算。 至少一个信号处理块适于将基于矩阵的信号处理卸载到基于硬件的矩阵协处理器。 两个或更多个不同的矩阵计算引擎中的每一个适于将相同类型的数学处理卸载到一个或多个共享硬件计算单元中的至少一个。

公开(公告)号：US20110129001A1

公开(公告)日：2011-06-02

申请号：US12787253

申请日：2010-05-25

Applicant: Paul A. Conflitti

Inventor： Paul A. Conflitti

IPC: H04L27/06 ,  H04B1/709

CPC classification number: G01S19/32 ,  G01S19/33 ,  G01S19/37 ,  H04B1/70752 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/70707 ,  H04B2201/70715

Abstract: Methods and apparatuses are provided for implementing a multiple-mode correlator within a receiver. The multiple-mode correlator may include at least one pre-multiplier portion and a plurality of correlation portions that selectively process multiply result signals from the pre-multiplier portion.

Abstract translation: 提供了用于在接收机内实现多模式相关器的方法和装置。 多模式相关器可以包括至少一个预乘法器部分和多个相关部分，其选择性地处理来自预乘法器部分的乘法结果信号。

公开(公告)号：US07929495B2

公开(公告)日：2011-04-19

申请号：US11790990

申请日：2007-04-30

Applicant: Francis Dominique ,  Hongwei Kong

Inventor： Francis Dominique ,  Hongwei Kong

IPC: H04W4/00

CPC classification number: H04B1/707 ,  H04B2201/70707

Abstract: In a method for power reduction at a receiver, a first radio frame is processed to recover transmitted data based on transport format information. The transport format information is determined based on a combination of transport format information associated with a plurality of received radio frames rather than a single frame. In another method for power reduction at a receiver, whether transport format information associated with a first radio frame is different from transport format information associated with a second radio frame is determined. The transport channel data is then processed based on the determination. The first radio frame is received prior to the second radio frame, and the transport format information indicates a transport format for transport channel data received in the first and second radio frames.

Abstract translation: 在接收机的功率降低方法中，处理第一无线电帧以基于传输格式信息恢复发送的数据。 基于与多个接收的无线电帧相关联的传输格式信息的组合而不是单个帧来确定传输格式信息。 在另一种用于接收机功率降低的方法中，确定与第一无线电帧相关联的传输格式信息不同于与第二无线电帧相关联的传输格式信息。 然后基于确定来处理传输信道数据。 在第二无线帧之前接收第一无线电帧，并且传输格式信息指示在第一和第二无线电帧中接收的传输信道数据的传输格式。

公开(公告)号：US07924908B2

公开(公告)日：2011-04-12

申请号：US12256928

申请日：2008-10-23

Applicant: Alex Margulis ,  Gadi Mazuz ,  Udi Ben-David

Inventor： Alex Margulis ,  Gadi Mazuz ,  Udi Ben-David

IPC: H04B1/69

CPC classification number: H04B1/7117 ,  H04B2201/70707

Abstract: In some embodiments of the present invention, a method and apparatus to generate interrupts in a transfer of information between a rake receiver and a processor, said interrupts having a rate of generation per unit time independent of a rate of the transfer of information per unit time.

Abstract translation: 在本发明的一些实施例中，一种在耙式接收机和处理器之间产生信息传送中产生中断的方法和装置，所述中断具有与每单位时间的信息传送速率无关的每单位时间的发生速率 。

公开(公告)号：US07903722B2

公开(公告)日：2011-03-08

申请号：US11792885

申请日：2005-01-14

Applicant: Alton Shelborne Keel ,  Louis Robert Litwin ,  Zoran Kostic

Inventor： Alton Shelborne Keel ,  Louis Robert Litwin ,  Zoran Kostic

IPC: H04B1/00

CPC classification number: H04B1/70757 ,  H04B1/708 ,  H04B2201/70707

Abstract: An apparatus comprises a receiver for receiving a multipath signal and a searcher that stores delayed samples of the received multipath signal, wherein the searcher is operative on the delayed samples of the received multipath signal for identifying one or more paths of the received multipath signal.

Abstract translation: 一种装置包括用于接收多路径信号的接收机和存储所接收的多路径信号的延迟采样的搜索器，其中，搜索器对所接收的多路径信号的延迟采样进行操作，用于识别所接收的多径信号的一个或多个路径。