公开(公告)号：US20130077720A1

公开(公告)日：2013-03-28

申请号：US13402297

申请日：2012-02-22

申请人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson ,  Michael Samuel Bebawy

发明人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson ,  Michael Samuel Bebawy

IPC分类号： H04B1/10

CPC分类号： H04W72/1278 ,  H04B1/71075 ,  H04B1/712 ,  H04W72/082

摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. The receiver performs code-averaged equalization and chip chip-level code-specific interference over-cancellation on the received signals. This can result in a unified interference cancellation processing, and can avoid cumbersome calculations of code cross correlations that is required in symbol-level interference cancellation. A symbol-level code-averaged desired signal add-back is performed to address the over-cancellation of some desired signals.

摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 接收机对接收到的信号执行代码平均均衡和芯片级代码特定的干扰过度消除。 这可以导致统一的干扰消除处理，并且可以避免在符号级干扰消除中所需的代码互相关的繁琐计算。 执行符号级代码平均期望信号加法来解决某些期望信号的过度消除。

公开(公告)号：US20130077657A1

公开(公告)日：2013-03-28

申请号：US13333703

申请日：2011-12-21

申请人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson

发明人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson

IPC分类号： H04B1/7115

CPC分类号： H04B1/7107 ,  H04B1/7115 ,  H04B2201/709727 ,  H04B2201/709745

摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive finger placement strategy is used in which after each stage of interference cancellation, finger delays and combining weights of the receiver are adapted to reflect the changed interference characteristics.

摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应手指放置策略，其中在干扰消除的每个阶段之后，接收机的手指延迟和组合权重适于反映改变的干扰特性。

公开(公告)号：US20130077578A1

公开(公告)日：2013-03-28

申请号：US13451076

申请日：2012-04-19

申请人： Yi-Pin Eric WANG ,  Andres Reial ,  Edgar Ramos ,  Stefan Parkvall ,  Stephen Grant

发明人： Yi-Pin Eric WANG ,  Andres Reial ,  Edgar Ramos ,  Stefan Parkvall ,  Stephen Grant

IPC分类号： H04W72/04

CPC分类号： H04W72/1278 ,  H04B1/71075 ,  H04B1/712 ,  H04W72/082

摘要： In MU-MIMO scenarios, a target mobile terminal can be exposed to data streams intended for other mobile terminals. If the target mobile terminal is capable of interference cancellation, then a serving base station can provide the target mobile terminal with interference information so that the target mobile terminal can efficiently cancel interferences due to these interfering data streams. The interference information includes one or more configuration information, each of which characterizes a related interfering data stream. The serving base station provides the interference information over one or more radio resources that are exclusive allocated to the target mobile terminal or are allocated for common listening. The serving base station exchanges configuration information with neighboring base stations over inter-BS links. The inter-BS links use resources that are different from the radio resources used between the base stations and the mobile terminals.

摘要翻译： 在MU-MIMO场景中，目标移动终端可以暴露给旨在用于其他移动终端的数据流。 如果目标移动终端能够进行干扰消除，则服务基站可以向目标移动终端提供干扰信息，使得目标移动终端可以有效地消除由于这些干扰数据流引起的干扰。 干扰信息包括一个或多个配置信息，每个配置信息表征相关的干扰数据流。 服务基站通过专用于目标移动终端的一个或多个无线电资源提供干扰信息，或者被分配用于共同收听。 服务基站通过BS间链路与相邻基站交换配置信息。 BS间链路使用与基站和移动终端之间使用的无线电资源不同的资源。

公开(公告)号：US20090023437A1

公开(公告)日：2009-01-22

申请号：US12138655

申请日：2008-06-13

申请人： Douglas A. CAIRNS ,  Yi-Pin Eric WANG ,  Hakan Bjorkegren

发明人： Douglas A. CAIRNS ,  Yi-Pin Eric WANG ,  Hakan Bjorkegren

IPC分类号： H04W4/00

CPC分类号： H04L25/0242 ,  H04B1/71052 ,  H04B1/712 ,  H04B2201/709727 ,  H04L25/0208

摘要： The technology comprises method(s) and apparatus for operating a telecommunications system. In its basic form the method comprises providing plural channelization codes for potential use by an uplink receiver; using unused channelization codes of the plural codes to generate an estimate of an impairment covariance matrix; and using the estimate of the impairment covariance matrix to form a processing parameter. For example, the processing parameter can be one or more weight values which, in turn, are can be used for generating a combined output signal.

摘要翻译： 该技术包括用于操作电信系统的方法和装置。 在其基本形式中，该方法包括提供用于上行链路接收机的潜在用途的多个信道化码; 使用所述多个代码的未使用的信道化码来生成损害协方差矩阵的估计; 并使用损伤协方差矩阵的估计来形成处理参数。 例如，处理参数可以是一个或多个加权值，其又可以用于产生组合的输出信号。

公开(公告)号：US20120051416A1

公开(公告)日：2012-03-01

申请号：US13050210

申请日：2011-03-17

申请人： Yi-Pin Eric WANG

发明人： Yi-Pin Eric WANG

IPC分类号： H04L27/06 ,  H04L27/01 ,  H04B1/10

CPC分类号： H04L25/08 ,  H04L25/03012 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03184 ,  H04L25/03312 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A receiver is configured to perform symbol detection based on a total frequency domain received signal that comprises contribution from a block of time domain symbols. The receiver comprises electronic circuitry operate to divide the block into plural sub-blocks, and for each sub-block, to jointly detect the symbols of the sub-block while treating symbols of the block which are outside of the sub-block as noise.

摘要翻译： 接收机被配置为基于包括来自时域符号块的贡献的总频域接收信号执行符号检测。 接收机包括电子电路，用于将块划分为多个子块，并且对于每个子块，共同检测子块的符号，同时将处于子块外部的块的符号作为噪声进行处理。

公开(公告)号：US20120051467A1

公开(公告)日：2012-03-01

申请号：US13050697

申请日：2011-03-17

申请人： Yi-Pin Eric WANG ,  Dennis Hui

发明人： Yi-Pin Eric WANG ,  Dennis Hui

IPC分类号： H04L27/00

CPC分类号： H04L25/08 ,  H04L25/03012 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03184 ,  H04L25/03312 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

摘要： In one of its aspects the technology disclosed herein concerns a method of operating a receiver. The method comprises performing symbol detection by (1) receiving a frequency-domain signal that comprises contribution from time-domain symbols transmitted from one or more transmit antennas; (2) generating a transformation matrix and a triangular matrix based on a frequency domain channel response; (3) using the transformation matrix to transform the received frequency-domain signal to obtain a transformed frequency-domain signal; and (4) performing symbol detection by performing plural stages of detection, each stage of detection using elements of the transformed frequency-domain received signal associated with the detection stage.

摘要翻译： 在其中的一个方面，本文公开的技术涉及操作接收机的方法。 该方法包括：（1）接收包括从一个或多个发射天线发射的时域符号的贡献的频域信号; （2）基于频域信道响应生成变换矩阵和三角矩阵; （3）使用变换矩阵来变换接收到的频域信号以获得变换的频域信号; 和（4）通过执行多级检测来执行符号检测，每个检测阶段使用与检测级相关联的变换的频域接收信号的元素。

公开(公告)号：US20160135210A1

公开(公告)日：2016-05-12

申请号：US14130798

申请日：2013-11-05

申请人： Sairamesh NAMMI ,  Erik LARSSON ,  Yi-Pin Eric WANG

发明人： Sairamesh NAMMI ,  Erik LARSSON ,  Yi-Pin Eric WANG

IPC分类号： H04W72/12 ,  H04W48/16

CPC分类号： H04W72/1231 ,  H04W40/08 ,  H04W48/12 ,  H04W48/16 ,  H04W72/1273 ,  H04W72/1289 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/324

摘要： A method and system for probing in a wireless communication network are disclosed. According to one aspect, a method includes directing at least one low power node to transmit a probing signal, where the probing signal includes least one code. The method also includes receiving from a wireless terminal an indication of downlink channel quality. The channel quality is based on a power of the probing signal received by the wireless terminal. The method further includes selectively directing at least one of the at least one low power node to communicate with the wireless terminal. The selecting is based on the indication of downlink channel quality.

摘要翻译： 公开了一种在无线通信网络中进行探测的方法和系统。 根据一个方面，一种方法包括引导至少一个低功率节点来发射探测信号，其中所述探测信号包括至少一个码。 该方法还包括从无线终端接收下行链路信道质量的指示。 信道质量基于由无线终端接收的探测信号的功率。 该方法还包括选择性地引导至少一个低功率节点中的至少一个与无线终端进行通信。 该选择基于下行链路信道质量的指示。

公开(公告)号：US20120051466A1

公开(公告)日：2012-03-01

申请号：US13050433

申请日：2011-03-17

申请人： Yi-Pin Eric WANG ,  Gregory E. Bottomley

发明人： Yi-Pin Eric WANG ,  Gregory E. Bottomley

IPC分类号： H04L27/06

CPC分类号： H04L25/08 ,  H04L25/03012 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03184 ,  H04L25/03312 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A receiver comprises plural receive antennas and electronic circuitry. The plural receive antennas are configured to receive, on plural subcarriers transmitted over a radio interface, a frequency domain signal that comprises contribution from a block of time domain symbols. The electronic circuitry is configured or operable to perform symbol detection of time domain symbols comprising the block by performing a multi-stage joint detection procedure comprising plural stages, and thus serves as a detector (40). For a first stage the block is divided into a first number of sub-blocks each having a sub-block first size. For a second stage the block is divided into a second number of sub-blocks each having a sub-block second size, the sub-block second size being greater than the sub-block first size. For each stage a detector (40) formulates frequency domain combining weights and uses the frequency domain combining weights for combining multiple receive versions of each subcarrier to provide candidate symbol combination values for symbols in each sub-block of the respective stage. For the second stage the detector (40) is further configured to use the candidate symbol combination values of the first stage to formulate joint hypotheses to serve as candidates for the joint detection operation of the second stage.

摘要翻译： 接收机包括多个接收天线和电子电路。 多个接收天线被配置为在由无线电接口发送的多个子载波上接收包括来自时域符号块的贡献的频域信号。 电子电路被配置或可操作以通过执行包括多个级的多级联合检测过程来执行包括该块的时域符号的符号检测，从而用作检测器（40）。 对于第一阶段，块被分成具有子块第一大小的第一数量的子块。 对于第二级，块被分成第二数量的子块，每个子块具有子块的第二尺寸，子块的第二尺寸大于子块的第一尺寸。 对于每个阶段，检测器（40）制定频域组合权重并使用频域组合权重来组合每个子载波的多个接收版本，以为相应级的每个子块中的符号提供候选符号组合值。 对于第二级，检测器（40）还被配置为使用第一级的候选符号组合值来形成联合假设以用作第二级的联合检测操作的候选。