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21. 发明申请

US20070259681A1 Method and Apparatus for Interference Based User Equipment Management in a Wireless Communication Network 审中-公开
标题翻译：无线通信网络中干扰用户设备管理的方法与装置
公开(公告)号：US20070259681A1
公开(公告)日：2007-11-08
申请号：US11741083
申请日：2007-04-27
申请人： Jung-fu Cheng , Anders Furuskar , Dennis Hui , Muhammad Ali Kazmi , Arne Simonssson , Per Skillermark
发明人： Jung-fu Cheng , Anders Furuskar , Dennis Hui , Muhammad Ali Kazmi , Arne Simonssson , Per Skillermark
IPC分类号： H04B7/00
CPC分类号： H04L27/2608 , H04L5/006 , H04L5/0062 , H04L27/364 , H04W72/1231
摘要： According to methods and apparatus taught herein, user equipments (UEs) in a wireless communication network are scheduled based on determining received signal power densities for a plurality of UEs to be scheduled, allocating UEs to scheduling intervals based on a sorting of their received signal power densities, and assigning UEs in the same scheduling interval to mirror frequency bands within an available frequency spectrum according to the sorting. For example, UEs to be scheduled are assigned to a given scheduling interval in rank order of their received signal power densities until the scheduling interval is fully allocated. Remaining UEs are assigned in rank order to one or more other scheduling intervals, and the process may be repeated or otherwise carried out on an ongoing basis. Such an allocation scheme tends to minimize both adjacent frequency and mirror frequency interferences between UEs scheduled in the same interval.
摘要翻译：根据本文教导的方法和装置，基于确定要调度的多个UE的接收信号功率密度来调度无线通信网络中的用户设备（UE），基于对其接收信号功率的分类，将UE分配到调度间隔并且按照相同的调度间隔分配UE以根据排序来反映可用频谱内的频带。例如，要调度的UE被分配给其接收信号功率密度的等级的给定调度间隔，直到调度间隔被完全分配为止。剩余的UE被按照等级顺序分配给一个或多个其他调度间隔，并且该过程可以在持续的基础上重复或以其他方式执行。这种分配方案倾向于最小化在相同间隔中调度的UE之间的相邻频率和镜像频率干扰。

22. 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。

23. 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。

24. 发明授权

US08923148B2 Efficient uplink transmission of channel state information 有权
标题翻译：高效的上行传输信道状态信息
公开(公告)号：US08923148B2
公开(公告)日：2014-12-30
申请号：US13439759
申请日：2012-04-04
申请人： Jung-Fu Cheng , Kambiz Zangi , Dennis Hui , Leonid Krasny
发明人： Jung-Fu Cheng , Kambiz Zangi , Dennis Hui , Leonid Krasny
IPC分类号： H04L12/26 , H04B7/02 , H04L1/20 , H04B17/00 , H04L25/02 , H04L1/00 , H04B7/06
CPC分类号： H04B17/0047 , H04B7/024 , H04B7/0626 , H04B7/0639 , H04B17/336 , H04B17/364 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0026 , H04L1/20 , H04L25/0212 , H04L25/022 , H04L25/0224
摘要： A UE in a wireless communication network transmits succinct, direct channel state information to the network, enabling coordinated multipoint calculations such as joint processing, without substantially increasing uplink overhead. The UE receives and processes reference symbols over a set of non-uniformly spaced sub-carriers, selected according to a scheme synchronized to the network. The frequency response for each selected sub-carrier is estimated conventionally, and the results quantized and transmitted to the network on an uplink control channel. The non-uniform sub-carrier selection may be synchronized to the network in a variety of ways.
摘要翻译：无线通信网络中的UE向网络发送简洁的直接信道状态信息，实现诸如联合处理之类的协调多点计算，而基本上不增加上行链路开销。 UE根据与网络同步的方案选择的一组非均匀间隔的子载波上接收和处理参考符号。对于每个选择的子载波的频率响应是常规估计的，并且在上行链路控制信道上量化并传输到网络。非均匀子载波选择可以以各种方式与网络同步。

25. 发明授权

US08879428B2 Systems and method for graph-based distributed parameter coordination in a communication network 有权
标题翻译：通信网络中基于图形的分布式参数协调的系统和方法
公开(公告)号：US08879428B2
公开(公告)日：2014-11-04
申请号：US13308776
申请日：2011-12-01
申请人： Dennis Hui , Jiann-Ching Guey
发明人： Dennis Hui , Jiann-Ching Guey
IPC分类号： H04L12/28
CPC分类号： H04L43/04 , H04L41/0823 , H04W16/02 , H04W24/02
摘要： Systems and method are disclosed for graph-based distributed parameter coordination in a communication network. In general, discrete local parameters to be coordinated among communication nodes in the network and their respective performance metrics, or costs, are modeled using a factor graph. Based on the factor graph, a variant of the sum-product algorithm, namely the min-sum algorithm, is applied in order for the communication nodes, through iterative message passing with their neighboring communication nodes, to decide upon optimal values for the local parameters for the communication nodes that collectively optimize a global performance metric across the communication network. In one embodiment, the communication network is a wireless communication network. In one specific embodiment, the wireless communication network is a cellular communication network.
摘要翻译：公开了用于通信网络中基于图的分布式参数协调的系统和方法。通常，使用因子图来建模要在网络中的通信节点之间协调的离散局部参数及其各自的性能度量或成本。基于因子图，应用和积算法的一个变体，即最小和算法，以便通信节点通过与其相邻通信节点的迭代消息传递来决定本地参数的最优值对于通过通信网络共同优化全局性能度量的通信节点。在一个实施例中，通信网络是无线通信网络。在一个具体实施例中，无线通信网络是蜂窝通信网络。

26. 发明授权

US08837621B2 Channel estimation for a very large-scale multiple-input multiple output (MIMO) system 有权
标题翻译：用于非常大规模的多输入多输出（MIMO）系统的信道估计
公开(公告)号：US08837621B2
公开(公告)日：2014-09-16
申请号：US13342688
申请日：2012-01-03
申请人： Jiann-Ching Guey , Kumar Balachandran , Dennis Hui
发明人： Jiann-Ching Guey , Kumar Balachandran , Dennis Hui
IPC分类号： H04B7/02 , H04L25/02 , H04L5/00 , H04B7/06 , H04L25/03
CPC分类号： H04B7/0413 , H04B7/0626 , H04B7/0691 , H04L5/0023 , H04L5/0048 , H04L25/0232 , H04L2025/03808
摘要： A transmitter, receiver, and method for channel estimation for a Multiple-Input Multiple-Output (MIMO) communication system in which the transmitter includes a multiplicity of transmit antennas spaced such that spacing between adjacent antennas provides a spatial correlation coefficient greater than a threshold level. The transmitter selects a subset of the multiplicity of transmit antennas for transmitting the pilot reference signals. The pilot reference signals are transmitted only from the selected subset of transmit antennas to the receiver. The receiver includes a channel estimator configured to derive a channel estimation for all of the multiplicity of transmit antennas using the received pilot reference signals and known or estimated spatial correlation among the multiplicity of transmit antennas.
摘要翻译：一种用于多输入多输出（MIMO）通信系统的信道估计的发射机，接收机和方法，其中所述发射机包括多个发射天线，所述多个发射天线间隔开，使得相邻天线之间的间隔提供大于阈值水平的空间相关系数。发射机选择用于发射导频参考信号的多个发射天线的子集。导频参考信号仅从选定的发射天线子集发射到接收机。接收机包括信道估计器，其被配置为使用所接收的导频参考信号和多个发射天线之间的已知或估计的空间相关性来导出所有多个发射天线的信道估计。

27. 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。

28. 发明授权

US08526407B2 Extended coordinated multipoint cells to mitigate inter-comp-cell downlink interference 有权
标题翻译：扩展的协调多点信元以减轻组间小区下行链路干扰
公开(公告)号：US08526407B2
公开(公告)日：2013-09-03
申请号：US12465864
申请日：2009-05-14
申请人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
发明人： Kambiz Zangi , Jiann-Ching Guey , Dennis Hui
IPC分类号： H04W4/00
CPC分类号： H04W72/1231 , H04B7/024 , H04L5/0066 , H04L5/0091
摘要： Inter-CoMP cell interference is reduced by “extending” at least one CoMP cell to include UEs served by a neighboring CoMP cell in the extended CoMP cell's transmission calculations, so as to minimize interference to the UEs served by other CoMP cells. Each UE in a border sub-cell identifies neighboring CoMP cells from which it receives interference in excess of a threshold value, and includes the interfering CoMP cells in a close-neighbor set. The close-neighbor set is transmitted to the UE's serving CoMP cell controller. When downlink transmissions are scheduled to the target UE, the controller notifies the neighboring CoMP cells in the close-neighbor set, identifying the target UE. Those CoMP cells then use information about the channel conditions from their transmit antennas to the target UE receive antennas to compute transmissions to UEs they serve, with the constraint that interference to the target UE is below a predetermined level.
摘要翻译：通过在扩展的CoMP小区的传输计算中“延伸”至少一个CoMP小区以包括由相邻CoMP小区服务的UE来减少CoMP间小区干扰，以便最小化对由其他CoMP小区服务的UE的干扰。边界子小区中的每个UE识别出相邻的CoMP小区，其接收到超过阈值的干扰，并且包括邻近组中的干扰CoMP小区。近邻集合被发送到UE的服务CoMP小区控制器。当向目标UE调度下行链路传输时，控制器通知近邻集中的相邻CoMP小区，识别目标UE。那些CoMP小区然后使用关于从其发射天线到目标UE接收天线的信道条件的信息来计算对它们所服务的UE的传输，其限制是对目标UE的干扰低于预定水平。

29. 发明申请

US20130109421A1 Adaptation of Parameters in a Communication Network 有权
标题翻译：通信网络中参数的适配
公开(公告)号：US20130109421A1
公开(公告)日：2013-05-02
申请号：US13283003
申请日：2011-10-27
申请人： Jiann-Ching Guey , Dennis Hui
发明人： Jiann-Ching Guey , Dennis Hui
IPC分类号： H04W16/18
CPC分类号： H04W24/02 , H04L47/822 , H04W24/04 , H04W92/20 , H04W92/24
摘要： A distributed parameter update procedure is provided for updating parameters that do not have discrete values. When a parameter value is changed, a search is conducted of a parameter space to find a new parameter value minimizes some cost function. The cost function is derived based on the current parameter settings in neighboring nodes. The distributed parameter update procedure may simplify the search process by localizing the search of the parameter space for a new parameter value to the vicinity of the current parameter setting. In some embodiments, the search is conducted along a line of steepest descent emanating from the current parameter setting.
摘要翻译：提供了分布式参数更新过程，用于更新不具有离散值的参数。当一个参数值被改变时，进行一个参数空间的搜索以找到一个新的参数值，最小化一些成本函数。成本函数是根据相邻节点中的当前参数设置得出的。分布式参数更新过程可以通过将新参数值的参数空间的搜索定位到当前参数设置的附近来简化搜索过程。在一些实施例中，沿着从当前参数设置发出的最速下降线进行搜索。

30. 发明申请

US20120288022A1 CHANNEL ESTIMATION FOR A VERY LARGE-SCALE MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SYSTEM 有权
标题翻译：用于非常大规模多输入多输出（MIMO）系统的信道估计
公开(公告)号：US20120288022A1
公开(公告)日：2012-11-15
申请号：US13342688
申请日：2012-01-03
申请人： Jiann-Ching Guey , Kumar Balachandran , Dennis Hui
发明人： Jiann-Ching Guey , Kumar Balachandran , Dennis Hui
IPC分类号： H04B15/00 , H04L27/28
CPC分类号： H04B7/0413 , H04B7/0626 , H04B7/0691 , H04L5/0023 , H04L5/0048 , H04L25/0232 , H04L2025/03808
摘要： A transmitter, receiver, and method for channel estimation for a Multiple-Input Multiple-Output (MIMO) communication system in which the transmitter includes a multiplicity of transmit antennas spaced such that spacing between adjacent antennas provides a spatial correlation coefficient greater than a threshold level. The transmitter selects a subset of the multiplicity of transmit antennas for transmitting the pilot reference signals. The pilot reference signals are transmitted only from the selected subset of transmit antennas to the receiver. The receiver includes a channel estimator configured to derive a channel estimation for all of the multiplicity of transmit antennas using the received pilot reference signals and known or estimated spatial correlation among the multiplicity of transmit antennas.
摘要翻译：一种用于多输入多输出（MIMO）通信系统的信道估计的发射机，接收机和方法，其中所述发射机包括多个发射天线，所述多个发射天线间隔开，使得相邻天线之间的间隔提供大于阈值水平的空间相关系数。发射机选择用于发射导频参考信号的多个发射天线的子集。导频参考信号仅从选定的发射天线子集发射到接收机。接收机包括信道估计器，其被配置为使用所接收的导频参考信号和多个发射天线之间的已知或估计的空间相关性来导出所有多个发射天线的信道估计。

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