公开(公告)号：US20110064035A1

公开(公告)日：2011-03-17

申请号：US12634250

申请日：2009-12-09

Applicant: Igor Moáco Guerreiro ,  Charles Casimiro Cavalcante ,  Darlan Cavalcante Moreira ,  Dennis Hui ,  Icaro L. Silva

Inventor： Igor Moáco Guerreiro ,  Charles Casimiro Cavalcante ,  Darlan Cavalcante Moreira ,  Dennis Hui ,  Icaro L. Silva

IPC: H04B15/00 ,  H04W72/00

CPC classification number: H04B1/1027 ,  H04B7/0434 ,  H04B7/0626 ,  H04B7/0639 ,  H04B17/345

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100291936A1

公开(公告)日：2010-11-18

申请号：US12465864

申请日：2009-05-14

Applicant: Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

Inventor： Kambiz Zangi ,  Jiann-Ching Guey ,  Dennis Hui

IPC: H04W72/00 ,  H04B7/00

CPC classification number: H04W72/1231 ,  H04B7/024 ,  H04L5/0066 ,  H04L5/0091

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100272074A1

公开(公告)日：2010-10-28

申请号：US12555966

申请日：2009-09-09

Applicant: Jung-Fu Cheng ,  Kambiz Zangi ,  Dennis Hui ,  Leonid Krasny

Inventor： Jung-Fu Cheng ,  Kambiz Zangi ,  Dennis Hui ,  Leonid Krasny

IPC: H04J3/00 ,  H03M13/05 ,  G06F11/10

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080282125A1

公开(公告)日：2008-11-13

申请号：US11746679

申请日：2007-05-10

Applicant: Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

Inventor： Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

IPC: H04L1/18

CPC classification number: H04L1/1845 ,  H04L1/1812

Abstract: 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.

Abstract translation: 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）。

公开(公告)号：US20080279182A1

公开(公告)日：2008-11-13

申请号：US11746920

申请日：2007-05-10

Applicant: Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

Inventor： Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

IPC: H04L12/56

CPC classification number: H04L1/0045 ,  H03M13/3761 ,  H04B7/15521 ,  H04L1/0054 ,  H04L1/1845 ,  H04L2001/0096

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080274727A1

公开(公告)日：2008-11-06

申请号：US11628460

申请日：2004-06-18

Applicant: Johan Axnas ,  Magnus Olsson ,  Dennis Hui

Inventor： Johan Axnas ,  Magnus Olsson ,  Dennis Hui

IPC: H04Q7/20 ,  H04B17/00 ,  H04M1/00

CPC classification number: H04B1/7103 ,  H04B2201/70701 ,  H04L25/0224 ,  H04L25/03178 ,  H04L25/03292

Abstract: Signal properties of a signal section (106) comprising a training sequence are compared with corresponding signal properties of other signal sections (108, 110). At a too large discrepancy, co-sequence interference is concluded to be present. The used signal property can preferably be a signal-to-noise ratio measure or a signal statistics measure. If the existence of co-sequence interference (102) is concluded, measures can be taken to avoid such interference and to mitigate the effects of the interference. A method for mitigating effects of co-sequence interference in channel estimation comprises a joint detection and estimation procedure performed under constrictions assuming presence of co-sequence interference.

Abstract translation: 将包括训练序列的信号部分（106）的信号特性与其他信号部分（108,110）的相应信号特性进行比较。 在一个太大的差异上，共序干扰得出结论。 所使用的信号特性可以优选地是信噪比测量或信号统计测量。 如果存在共序干扰（102），则可以采取措施避免这种干扰并减轻干扰的影响。 用于减轻协同干扰在信道估计中的影响的方法包括在假设存在协同干扰的收缩下执行的联合检测和估计过程。

公开(公告)号：US07340016B2

公开(公告)日：2008-03-04

申请号：US10889641

申请日：2004-07-12

Applicant: Dennis Hui

Inventor： Dennis Hui

IPC: H04L1/02 ,  H04B1/10 ,  H04B7/02

CPC classification number: H04L25/03299 ,  H04L1/0618 ,  H04L25/03184 ,  H04L25/03331 ,  H04L2025/03375

Abstract: A multi-branch receiver comprises a plurality of signal branches including branch filters to filter respective branch input signals and to produce corresponding branch output signals, a combiner to combine the branch output signals to produce a combined baseband signal, a pre-filter to filter the combined baseband signal to produce a received signal with minimum phase channel characteristics, and an equalizer to generate an estimate of a data sequence contained in the received signal.

Abstract translation: 多分支接收机包括多个信号分支，包括分支滤波器以滤除相应的分支输入信号并产生相应的分支输出信号，组合器组合分支输出信号以产生组合基带信号，预滤波器以过滤 组合基带信号以产生具有最小相位信道特性的接收信号，以及均衡器以产生包含在接收信号中的数据序列的估计。

公开(公告)号：US07321646B2

公开(公告)日：2008-01-22

申请号：US10716085

申请日：2003-11-18

Applicant: Huseyin Arslan ,  Abdulrauf Hafeez ,  Rajaram Ramesh ,  Dennis Hui

Inventor： Huseyin Arslan ,  Abdulrauf Hafeez ,  Rajaram Ramesh ,  Dennis Hui

IPC: H04B1/10

CPC classification number: H04L25/03133 ,  H04L2025/03605

Abstract: To receive a signal from a multiple-input-multiple-output (MIMO) communication channel, initial channel taps are generated based on an impulse response estimate of the MIMO communication channel. The received signal is pre-filtered using the initial channel taps to generate output channel taps and a corresponding output signal having an increased signal-to-noise ratio (SNR) and uncorrelated noise. The SNR is based on a ratio of the energy in a first subset of the output channel taps to the energy in a second subset of the output channel taps.

Abstract translation: 为了从多输入多输出（MIMO）通信信道接收信号，基于MIMO通信信道的脉冲响应估计来生成初始信道抽头。 使用初始信道抽头对接收到的信号进行预滤波以产生输出信道抽头和具有增加的信噪比（SNR）和不相关噪声的相应输出信号。 SNR基于输出信道抽头的第一子集中的能量与输出信道抽头的第二子集中的能量的比率。

公开(公告)号：US09444672B2

公开(公告)日：2016-09-13

申请号：US13512973

申请日：2009-12-21

Applicant: Dennis Hui ,  Miguel Lopez

Inventor： Dennis Hui ,  Miguel Lopez

IPC: H04K1/02 ,  H04L12/56 ,  H04L27/36 ,  H04L1/00 ,  H04L27/34

CPC classification number: H04L27/36 ,  H04L1/0041 ,  H04L27/3405

Abstract: A modulator includes a symbol mapper that is configured to map respective bits sets of a bit sequence corresponding to a burst and including data, training, tail, and guard bits into respective symbols to form a symbol sequence of data, training, tail, and guard symbols. A vector precoder is configured to apply a vector precoding transformation to the data and training symbols to form precoded symbols. These precoded symbols are combined with the tail and guard symbols in a symbol processor to form a sequence of transmit symbols. The record precoding conducted by the modulator of a transmitter enables improved link performance without the cost of increased processing complexity of the receiver algorithm.

Abstract translation: 调制器包括符号映射器，其被配置为将与突发相对应的比特序列的各个比特组映射到包括数据，训练，尾部和保护比特到相应符号中以形成数据，训练，尾部和后卫的符号序列 符号。 向量预编码器被配置为向数据和训练符号应用向量预编码变换以形成预编码符号。 这些预编码符号与符号处理器中的尾部和保护符号组合以形成发送符号序列。 由发射机的调制器执行的记录预编码器能够改善链路性能，而不会增加接收机算法的处理复杂度。

公开(公告)号：US08934930B2

公开(公告)日：2015-01-13

申请号：US13283003

申请日：2011-10-27

Applicant: Jiann-Ching Guey ,  Dennis Hui

Inventor： Jiann-Ching Guey ,  Dennis Hui

IPC: H04B7/00 ,  H04W24/02 ,  H04W24/04 ,  H04W92/24 ,  H04L12/911 ,  H04W92/20

CPC classification number: H04W24/02 ,  H04L47/822 ,  H04W24/04 ,  H04W92/20 ,  H04W92/24

Abstract: 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.

Abstract translation: 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。