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51. 发明授权

US06778619B2 Methods for receiving diversity transmissions including prefiltering to provide minimum phase channel characteristics and related receivers 有权
标题翻译：用于接收包括预滤波以提供最小相位通道特性和相关接收器的分集传输的方法
公开(公告)号：US06778619B2
公开(公告)日：2004-08-17
申请号：US09853207
申请日：2001-05-11
申请人： Kambiz C. Zangi , Dennis Hui
发明人： Kambiz C. Zangi , Dennis Hui
IPC分类号： H04L102
CPC分类号： H04L25/03331 , H04L1/0618 , H04L25/03299
摘要： A method for receiving transmissions includes receiving a first symbol-spaced baseband signal corresponding to first portions of first and second encoded data sequences transmitted over first and second baseband channels, and receiving a second symbol-spaced baseband signal corresponding to second portions of the first and second encoded data sequences transmitted over the first and second baseband channels. The first and second symbol-spaced baseband signals are combined to provide a combined baseband signal, and the combined baseband signal is prefiltered to provide minimum phase channel characteristics. The prefiltered combined baseband signal is equalized to provide an estimate of a data sequence. Related receivers are also discussed.
摘要翻译：一种用于接收传输的方法包括：接收对应于通过第一和第二基带信道发送的第一和第二编码数据序列的第一部分的第一符号间隔基带信号，以及接收对应于第一和第二基带信道的第二部分的第二符号间隔基带信号，通过第一和第二基带信道发射的第二编码数据序列。第一和第二符号间隔的基带信号被组合以提供组合的基带信号，并且组合的基带信号被预过滤以提供最小的相位通道特性。预过滤的组合基带信号被相等以提供数据序列的估计。还讨论了相关接收机。

52. 发明授权

US06359935B1 Method for iterative demodulation and decoding for a system with coding and differential demodulation 有权
标题翻译：用于具有编码和差分解调的系统的迭代解调和解码方法
公开(公告)号：US06359935B1
公开(公告)日：2002-03-19
申请号：US09317782
申请日：1999-05-24
申请人： Dennis Hui , Ali S. Khayrallah
发明人： Dennis Hui , Ali S. Khayrallah
IPC分类号： H04L3202
CPC分类号： H04L1/005 , H04L1/0059 , H04L1/0061 , H04L1/0065 , H04L1/0068 , H04L1/0071 , H04L27/2332 , H04L2001/0098
摘要： A receiver (300) for a communication device (102) includes a multiple symbol differential demodulator (304, 316) and a convolutional decoder (308) and a feedback loop (313). The feedback is used to improve the quality of the demodulation during a second pass through the demodulator. The demodulator has a trellis structure which reduces complexity.
摘要翻译：用于通信设备（102）的接收机（300）包括多符号差分解调器（304,316）和卷积解码器（308）和反馈回路（313）。反馈用于在通过解调器的第二次通过期间提高解调的质量。解调器具有网格结构，降低了复杂度。

53. 发明授权

US08660597B2 Systems and method for coordinated multipoint downlink transmissions 有权
标题翻译：用于协调多点下行链路传输的系统和方法
公开(公告)号：US08660597B2
公开(公告)日：2014-02-25
申请号：US13335482
申请日：2011-12-22
申请人： Kambiz Zangi , Dennis Hui , Leonid Krasny
发明人： Kambiz Zangi , Dennis Hui , Leonid Krasny
IPC分类号： H04B15/00 , H04B7/02
CPC分类号： H04B7/024
摘要： A method for determining antenna weights for use in transmitting data from a plurality of base stations to a user device is disclosed. The antenna weights are determined using an input covariance matrix (S), and the input covariance matrix is determined subject to a predetermined power constraint and a predetermined, non-zero interference constraint.
摘要翻译：公开了一种用于确定用于从多个基站向用户设备发送数据的天线权重的方法。使用输入协方差矩阵（S）确定天线权重，并且在预定功率约束和预定的非零干扰约束条件下确定输入协方差矩阵。

54. 发明申请

US20130308616A1 Time Slot Sharing in TDMA Communication System 有权
标题翻译： TDMA通信系统中的时隙共享
公开(公告)号：US20130308616A1
公开(公告)日：2013-11-21
申请号：US13877518
申请日：2010-10-07
申请人： Dennis Hui , Miguel Lopez
发明人： Dennis Hui , Miguel Lopez
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04L1/08 , H04L27/18 , H04W28/04
摘要： The embodiments of the present invention relate to a method in a transmitting unit; a method in a receiving unit; a transmitting unit and a receiving unit, in a wireless communication network employing Time Division Multiple Access, TDMA, for transmitting and, receiving and demodulating data, respectively, the data being transmitted in a signal comprising a burst, wherein bursts relating to NMS number of mobile stations are multiplexed into a single time slot. The transmission comprises grouping a block of N b number of user code bits, representing the data to be transmitted, into NDS/NMS groups of user code bits. Mapping the groups of user code bits to data symbols such that one group is represented by one data symbol, thereby obtaining a block of data symbols, wherein each data symbol is drawn from one or more pre-defined complex-valued symbol constellation(s). The transmission further comprises repeating the block of data symbols, such that the burst to be transmitted comprises NMS number of equal blocks of data symbols, rotating the NMS number of blocks of data symbols according to a mobile-station-specific rotation, and transmitting the rotated blocks of data symbols in a burst in the time slot.
摘要翻译：本发明的实施例涉及发送单元中的方法; 接收单元中的方法; 发射单元和接收单元，在采用时分多址（TDMA）的无线通信网络中，分别用包括脉冲串的信号中的数据发送和接收和接收数据，所述信号包括突发，其中与NMS号移动台被复用到单个时隙中。传输包括将表示要发送的数据的N b个用户码位块的块分组成用户码位的NDS / NMS组。将用户代码位组映射到数据符号，使得一个组由一个数据符号表示，从而获得数据符号块，其中每个数据符号从一个或多个预定义复值符号星座绘制，。传输还包括重复数据符号块，使得要传输的突发包括NMS个数量相等的数据符号块，根据移动站特定的旋转来旋转数据符号块的NMS个数，在时隙中的突发中旋转的数据符号块。

55. 发明授权

US08189720B2 Blind frequency-offset estimation for temporally and/or spatially correlated signal 有权
标题翻译：用于时间和/或空间相关信号的盲频偏估计
公开(公告)号：US08189720B2
公开(公告)日：2012-05-29
申请号：US12275992
申请日：2008-11-21
申请人： Dennis Hui
发明人： Dennis Hui
IPC分类号： H04L27/06
CPC分类号： H04L27/2657 , H04L27/2671 , H04L27/2676 , H04L2027/0053 , H04L2027/0073
摘要： An iterative, blind, frequency-offset estimation process that does not require any training signal or demodulated information symbols is disclosed. Receivers embodying the disclosed processes can produce periodic frequency-offset estimates, without running computationally intensive equalization or demodulation algorithms, by exploiting the temporal correlation of the received signal in the time domain, as well as the received signal's correlation across in-phase and quadrature dimensions, in some embodiments, to find a frequency-offset estimate that best fits the received signal in a maximum-likelihood sense. In an exemplary method of estimating receiver frequency offset, a temporally stacked signal block is formed from multi-branch signal samples corresponding to each of two or more time-separated samples of the received signal. The temporally stacked signal block is used in computing a maximum-likelihood joint estimate of the receiver frequency offset and the spatial covariance of the temporally stacked signal block de-rotated by the receiver frequency offset.
摘要翻译：公开了不需要任何训练信号或解调信息符号的迭代盲盲频率估计过程。实现所公开的处理的接收机可以通过利用时域中的接收信号的时间相关性以及接收信号在同相和正交尺度上的相关性来产生周期性的频偏估计，而不需要运行计算密集的均衡或解调算法在一些实施例中，以最大似然意义找到最适合接收信号的频偏估计。在估计接收机频率偏移的示例性方法中，时间叠加的信号块由对应于接收信号的两个或更多个时间分离样本中的每一个的多分支信号样本形成。时间叠加的信号块用于计算接收机频率偏移的最大似然联合估计和由接收机频率偏移去旋转的时间叠加的信号块的空间协方差。

56. 发明授权

US08107560B2 Method and apparatus for interference cancellation in communication signal processing 有权
标题翻译：通信信号处理中干扰消除的方法和装置
公开(公告)号：US08107560B2
公开(公告)日：2012-01-31
申请号：US10844155
申请日：2004-05-12
申请人： Dayong Chen , Dennis Hui
发明人： Dayong Chen , Dennis Hui
IPC分类号： H04L27/22
CPC分类号： H04L27/0012
摘要： A method and apparatus blindly detects a received signal's modulation type characterizing an impairment component of the received signal for each postulated modulation type by determining spatial correlations between In-phase and Quadrature components of the received signal. The blind detection circuit then detects the modulation type based on the characterized impairment component. A metric generator generates a postulation metric for each postulated modulation type based on the characterized impairment component. After evaluating the postulation metrics, an evaluation circuit identifies the postulated modulation type having the best postulation metric as the modulation type of the received signal. According to an exemplary embodiment, the blind detection circuit determines a whitened noise estimate for each postulated modulation type and generates the postulation metrics based on the whitened noise estimate to reduce interference effects in the postulation metrics.
摘要翻译：一种方法和装置通过确定接收信号的同相和正交分量之间的空间相关性，盲目检测每个假设调制类型表征接收信号的损伤分量的接收信号的调制类型。然后，盲检测电路基于所表征的损伤分量检测调制类型。度量发生器基于特征的损伤分量为每个假设的调制类型生成假设度量。在评估假设度量之后，评估电路将具有最佳假设度量的假定调制类型识别为接收信号的调制类型。根据示例性实施例，盲检测电路确定每个假设调制类型的白化噪声估计，并且基于白化噪声估计生成假设度量，以减少假设度量中的干扰影响。

57. 发明申请

US20110274185A1 Methods and Arrangements for Feeding Back Channel State Information 有权
标题翻译：回馈渠道状态信息的方法和安排
公开(公告)号：US20110274185A1
公开(公告)日：2011-11-10
申请号：US13145223
申请日：2009-01-19
申请人： Jiansong Gan , Dennis Hui
发明人： Jiansong Gan , Dennis Hui
IPC分类号： H04L27/00
CPC分类号： H04L27/2647 , H04B7/024 , H04B7/0417 , H04B7/0626 , H04L1/0026 , H04L25/03343 , H04L2025/03426
摘要： A method and an arrangement (600) in a user equipment (140) for quantizing channel state information in a coordinated multi-point transmission radio communication system (100). A dominant path is between the user equipment (140) and a first network node (110) and a non-dominant path is between the user equipment (140) and a second network node (120, 130). A ratio of the non-dominant path channel response, such as fast fading, to the dominant path channel response is quantized by using a codebook disclosed herein. A method and an arrangement (400) for generating a codebook by applying a log squared error distortion measure in an iterative algorithm. A method and an arrangement (900) in a user equipment (140) for allocating available bits among at least two quantized ratios in a channel state information feedback procedure. The bits are allocated by means of selecting (270) at least one codebook based on statistic properties, such as path gain, of the non-dominant path.
摘要翻译：一种用于在协调的多点传输无线电通信系统（100）中量化信道状态信息的用户设备（140）中的方法和装置（600）。主要路径在用户设备（140）和第一网络节点（110）之间，并且非主导路径在用户设备（140）和第二网络节点（120,130）之间。通过使用本文公开的码本来量化非优势路径信道响应（例如快速衰落）与主路径信道响应的比率。一种用于通过在迭代算法中应用对数平方误差失真测量来生成码本的方法和装置（400）。一种在用户设备（140）中用于在信道状态信息反馈过程中在至少两个量化比率中分配可用比特的方法和装置（900）。通过基于非主导路径的统计特性（例如路径增益）来选择（270）至少一个码本来分配比特。

58. 发明申请

US20110064035A1 Method and Apparatus for Reducing Multi-User-Interference in a Wireless Communication System 审中-公开
标题翻译：一种减少无线通信系统中多用户干扰的方法和装置
公开(公告)号：US20110064035A1
公开(公告)日：2011-03-17
申请号：US12634250
申请日：2009-12-09
申请人： Igor Moáco Guerreiro , Charles Casimiro Cavalcante , Darlan Cavalcante Moreira , Dennis Hui , Icaro L. Silva
发明人： Igor Moáco Guerreiro , Charles Casimiro Cavalcante , Darlan Cavalcante Moreira , Dennis Hui , Icaro L. Silva
IPC分类号： H04B15/00 , H04W72/00
CPC分类号： H04B1/1027 , H04B7/0434 , H04B7/0626 , H04B7/0639 , H04B17/345
摘要： According to the teachings presented herein, each base station in a group of base stations is linked to an associated terminal as a receiver-transmitter pair. These receiver-transmitter pairs reuse channelization resources, such that each terminal represents a source of other-cell interference (also referred to as multi-user interference or MUI) for other terminals in neighboring cells that are reusing all or some of the same channelization resources. Accordingly, the base stations implement a gaming-based algorithm to mitigate MUI for the multiple-input-multiple-output (MIMO) uplink signals received from their associated terminals. More particularly, each base station functions as a player in a game, in which the allowed gaming action is the selection of the precoding matrix to be used for MIMO uplink transmissions to the base station from an associated terminal.
摘要翻译：根据本文给出的教导，一组基站中的每个基站作为接收机 - 发射机对链接到相关联的终端。这些接收机 - 发射机对重用信道化资源，使得每个终端表示对相邻小区中用于重用所有或一些相同信道化资源的相邻小区中的其他终端的其他小区干扰源（也称为多用户干扰或MUI）。因此，基站实施基于游戏的算法来减轻从其相关终端接收的多输入多输出（MIMO）上行链路信号的MUI。更具体地，每个基站用作游戏中的玩家，其中允许的游戏动作是选择用于从相关联的终端到基站的MIMO上行链路传输的预编码矩阵。

59. 发明申请

US20080282125A1 Method and Apparatus for Combined Packet Retransmission and Soft Decoding of Combined Packets in a Wireless Communication Network 有权
标题翻译：无线通信网络中组合分组的组合分组重传和软解码的方法和装置
公开(公告)号：US20080282125A1
公开(公告)日：2008-11-13
申请号：US11746679
申请日：2007-05-10
申请人： Abdulrauf Hafeez , Dayong Chen , Dennis Hui
发明人： Abdulrauf Hafeez , Dayong Chen , Dennis Hui
IPC分类号： H04L1/18
CPC分类号： H04L1/1845 , H04L1/1812
摘要： In a wireless communication network using point-to-point or point-to-multipoint communications, this disclosure teaches the use of combined packets for retransmission and corresponding soft value processing at a receiver, wherein combined packets are formed as the logical combination of two or more previously transmitted packets and allow the receiver to use a single combined packet to correct one or more failed packets. For example, with the combined packet retransmission and corresponding soft value receiver processing as taught herein, a given receiver can use a given combined packet to correct bit errors in all (failed) packets comprising the combined packet as long as the bit errors in a failed packet do not overlap (or align) with bit errors in the other failed packets comprising the combined packet.
摘要翻译：在使用点对点或点对多点通信的无线通信网络中，本公开教导了在接收机处使用组合分组进行重传和对应的软值处理，其中组合分组被形成为两个或更先前传输的分组，并允许接收机使用单个组合分组来校正一个或多个故障分组。例如，通过组合的分组重传和如本文所教导的相应的软值接收器处理，给定的接收机可以使用给定的组合分组来校正包括组合分组的所有（失败的）分组中的比特错误，只要失败的比特错误分组不与包括组合分组的其他故障分组中的比特错误重叠（或对齐）。

60. 发明申请

US20080279182A1 Method and Apparatus for the Use of Network Coding in a Wireless Communication Network 有权
标题翻译：在无线通信网络中使用网络编码的方法和装置
公开(公告)号：US20080279182A1
公开(公告)日：2008-11-13
申请号：US11746920
申请日：2007-05-10
申请人： Abdulrauf Hafeez , Dayong Chen , Dennis Hui
发明人： Abdulrauf Hafeez , Dayong Chen , Dennis Hui
IPC分类号： H04L12/56
CPC分类号： H04L1/0045 , H03M13/3761 , H04B7/15521 , H04L1/0054 , H04L1/1845 , H04L2001/0096
摘要： According to a method and apparatus taught herein, a network node includes a receiver circuit that determines soft values for received packets corresponding to the information bit groups associated with network coding operations, where the soft values are determined for each information bit group based on joint probabilities of the information bits within the information bit group. For example, first soft values are determined for the information bit groups in a first (received) constituent packet and second soft values are likewise determined for the information bit groups in a network-coded (received) packet that depends on the first constituent packet and a second constituent packet. Third soft values are generated for the information bit groups of the second constituent packet based on jointly evaluating the first and second soft values.
摘要翻译：根据本文教导的方法和装置，网络节点包括接收机电路，其确定与与网络编码操作相关联的信息比特组对应的接收分组的软值，其中基于联合概率为每个信息比特组确定软值信息位组内的信息位。例如，为第一（接收）构成分组中的信息比特组确定第一软值，并且同样地确定依赖于第一组成分组的网络编码（接收）分组中的信息比特组的第二软值，第二组成分组。基于联合评估第一和第二软值，为第二组成分组的信息比特组生成第三软值。

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