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11.发明申请RECEIVER AND METHOD FOR REDUCING AN AMOUNT OF CHANNEL STATE INFORMATION FEEDBACK TO A TRANSMITTER 有权一种用于减少信道状态信息反馈到发射机的接收机和方法公开(公告)号：US20120115427A1
公开(公告)日：2012-05-10
申请号：US12941114
申请日：2010-11-08
Applicant: Dennis Hui , Jung-Fu Cheng , Kambiz Zangi , Leonid Krasny
Inventor： Dennis Hui , Jung-Fu Cheng , Kambiz Zangi , Leonid Krasny
IPC: H04B17/00
CPC classification number: H04B7/0417 , H04B7/065 , H04B7/0658 , H04B7/066 , H04B7/0663
Abstract: A receiver and a method are described herein for reducing an amount of channel state information related to a transmit channel correlation matrix φTX that is feedback to a transmitter. In addition, to a transmitter and a method are described herein for reconstructing the transmit channel correlation matrix φTX using the reduced channel state feedback information received from the receiver.
Abstract translation: 本文描述了一种接收机和方法，用于减少与发射机反馈的发射信道相关矩阵TX相关的信道状态信息量。 此外，本文描述了一种发射机和方法，用于使用从接收机接收的减少的信道状态反馈信息来重建发射信道相关矩阵＆phgr。TX。
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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
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。
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公开(公告)号：US08208397B2
公开(公告)日：2012-06-26
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: H04L1/00
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。
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公开(公告)号：US08107983B2
公开(公告)日：2012-01-31
申请号：US12404773
申请日：2009-03-16
Applicant: Kambiz Zangi , Dennis Hui , Leonid Krasny
Inventor： Kambiz Zangi , Dennis Hui , Leonid Krasny
CPC classification number: H04B7/024
Abstract: 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.
Abstract translation: 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。
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15.发明授权Signaling support for antenna selection using subset lists and subset masks 有权使用子集列表和子集掩码进行天线选择的信令支持
公开(公告)号：US08897834B2
公开(公告)日：2014-11-25
申请号：US13292738
申请日：2011-11-09
Applicant: Karl J. Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas B. Karlsson
Inventor： Karl J. Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas B. Karlsson
CPC classification number: H04B7/0619 , H04B7/024 , H04B7/061 , H04B7/0639 , H04B7/0691 , H04B7/10 , H04W72/12 , H04W72/1278 , H04W88/02
Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.
Abstract translation: 本文描述的通信设备具有控制（或至少部分控制），一个或多个基站中的虚拟天线将用于传输。 在一个实施例中，移动电话执行以下步骤：（1）从识别与基站相关联的虚拟天线的配置接收来自调度单元的天线子集列表; （2）使用天线子集列表来选择用于传输的虚拟天线的配置中的哪些虚拟天线; 并且（3）发送包含指示/请求基站/调度单元使用所选择的虚拟天线进行传输的信息的天线选择信号（到调度单元）。
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16.发明申请Using Spatial Properties of MIMO Channels for Enhanced Channel Estimation in MIMO Systems 有权使用MIMO信道的空间属性来增强MIMO系统中的信道估计
公开(公告)号：US20100272207A1
公开(公告)日：2010-10-28
申请号：US12810360
申请日：2007-12-27
Applicant: Kambiz Zangi , Leonid Krasny
Inventor： Kambiz Zangi , Leonid Krasny
IPC: H04B7/02
CPC classification number: H04B7/0413 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04L25/0244 , H04L27/2647
Abstract: An apparatus for estimating a channel response associated with a multiple input/multiple output (MIMO) system includes an antenna that receives multiple pilot symbols, each of the multiple pilot symbols transmitted from a different one of multiple transmit antennas of a transmitter in the MIMO system. The apparatus further includes a channel estimator that determines spatial, time and frequency correlations of channels of the MIMO system among the multiple transmit antennas when estimating a channel response associated with the MIMO system based on multiple ones of the received plurality of pilot symbols.
Abstract translation: 用于估计与多输入/多输出（MIMO）系统相关联的信道响应的装置包括：天线，其接收多个导频符号，所述多个导频符号中的每一个从MIMO系统中的发射机的多个发射天线中的不同发射天线发送 。 该装置还包括信道估计器，其基于接收到的多个导频符号中的多个导频符号估计与MIMO系统相关联的信道响应，确定MIMO系统在多个发射天线中的信道的空间，时间和频率相关性。
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17.发明申请Signaling Support for Antenna Selection Using Subset Lists and Subset Masks 有权使用子集列表和子集掩码进行天线选择的信令支持
公开(公告)号：US20070135161A1
公开(公告)日：2007-06-14
申请号：US11538535
申请日：2006-10-04
Applicant: Karl Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas Karlsson
Inventor： Karl Molnar , Kambiz Zangi , Leonid Krasny , Stephen Grant , Jonas Karlsson
IPC: H04M1/00
CPC classification number: H04B7/0619 , H04B7/024 , H04B7/061 , H04B7/0639 , H04B7/0691 , H04B7/10 , H04W72/12 , H04W72/1278 , H04W88/02
Abstract: A mobile phone is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations should be used for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas should be used for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.
Abstract translation: 这里描述的移动电话具有控制（或至少部分控制），一个或多个基站中的哪个虚拟天线应该用于传输。 在一个实施例中，移动电话执行以下步骤：（1）从识别与基站相关联的虚拟天线的配置接收来自调度单元的天线子集列表; （2）使用天线子集列表来选择虚拟天线配置中哪些虚拟天线应用于传输; 并且（3）发送包含指示/请求基站/调度单元使用所选择的虚拟天线进行传输的信息的天线选择信号（到调度单元）。
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18.发明授权Using spatial properties of MIMO channels for enhanced channel estimation in MIMO systems 有权使用MIMO信道的空间属性来增强MIMO系统中的信道估计
公开(公告)号：US08432993B2
公开(公告)日：2013-04-30
申请号：US12810360
申请日：2007-12-27
Applicant: Kambiz Zangi , Leonid Krasny
Inventor： Kambiz Zangi , Leonid Krasny
IPC: H04B7/02
CPC classification number: H04B7/0413 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04L25/0244 , H04L27/2647
Abstract: An apparatus for estimating a channel response associated with a multiple input/multiple output (MIMO) system includes an antenna that receives multiple pilot symbols, each of the multiple pilot symbols transmitted from a different one of multiple transmit antennas of a transmitter in the MIMO system. The apparatus further includes a channel estimator that determines spatial, time and frequency correlations of channels of the MIMO system among the multiple transmit antennas when estimating a channel response associated with the MIMO system based on multiple ones of the received plurality of pilot symbols.
Abstract translation: 用于估计与多输入/多输出（MIMO）系统相关联的信道响应的装置包括：天线，其接收多个导频符号，所述多个导频符号中的每一个从MIMO系统中的发射机的多个发射天线中的不同发射天线发送 。 该装置还包括信道估计器，其基于接收到的多个导频符号中的多个导频符号估计与MIMO系统相关联的信道响应，确定MIMO系统在多个发射天线中的信道的空间，时间和频率相关性。
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19.发明授权Joint estimation of MIMO channels and noise correlation for wireless systems with multiple receive antennas 有权具有多个接收天线的无线系统的MIMO信道和噪声相关的联合估计
公开(公告)号：US08094762B2
公开(公告)日：2012-01-10
申请号：US12114516
申请日：2008-05-02
Applicant: Leonid Krasny , Kambiz Zangi
Inventor： Leonid Krasny , Kambiz Zangi
CPC classification number: H04B7/0851 , H04L25/0204 , H04L25/0224 , H04L25/0242
Abstract: A radio communication sent by a transmitter having M transmit antennas is received by a receiver having N receive antennas, where M is a positive integer greater than or equal to one and N is positive integer greater than one. Thus, N output signals, one for each receive antenna, are received. The signal transmitted from each transmit antenna includes predetermined pilot symbols known by the receiver and information symbols to be determined by the receiver. Weights for estimating each of M×N single-input/single-output channels between transmit and receive antennas are determined based on jointly processing pilot symbols received on all of the N receive antennas. The M×N channels are estimated based on the determined weights, and those estimated channels are used to determine the information symbols. An iterative procedure is used to estimate the M×N channels using a noise correlation matrix estimate and to estimate the noise correlation matrix using the M×N channel estimates.
Abstract translation: 由具有M个发射天线的发射机发送的无线电通信由具有N个接收天线的接收机接收，其中M是大于或等于1的正整数，并且N是大于1的正整数。 因此，接收每个接收天线一个N个输出信号。 从每个发送天线发送的信号包括接收机已知的预定导频符号和由接收机确定的信息符号。 基于在所有N个接收天线上接收到的导频符号共同确定用于估计发射天线和接收天线之间的每个M×N个单输入/单输出信道的权重。 基于所确定的权重来估计M×N个信道，并且使用那些估计的信道来确定信息符号。 使用迭代过程使用噪声相关矩阵估计来估计M×N个信道，并且使用M×N信道估计来估计噪声相关矩阵。
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20.发明申请Method and Apparatus for Linearly Precoding Downlink Transmissions to Reduce Temporal Variations in Interference 有权用于线性预编码下行链路传输以减少干扰时间变化的方法和装置
公开(公告)号：US20090069054A1
公开(公告)日：2009-03-12
申请号：US11850781
申请日：2007-09-06
Applicant: Kambiz C. Zangi , Leonid Krasny , Dennis Hui
Inventor： Kambiz C. Zangi , Leonid Krasny , Dennis Hui
IPC: H04M1/00
CPC classification number: H04L5/0082 , H04L1/0015 , H04L5/0023 , H04L5/0058 , H04L25/03343 , H04W4/08 , H04W28/18 , H04W72/00
Abstract: According to one or more method and apparatus embodiments taught herein, network base stations reduce temporal variations in the interference perceived by mobile stations operating within the network by slowing down the rate at which they change or otherwise update the linear precoding settings applied to their transmitted Orthogonal Frequency Division Multiplex (OFDM) signals in comparison to the rate at which the base stations perform link adaptation. That is, the precoding-related component of measured interference (e.g., other-cell interference) at the mobile stations is made quasi-stationary with respect to channel quality reporting and link adaptation intervals by fixing the preceding settings used by each base station over time intervals substantially longer than the channel reporting/link adaptation intervals.
Abstract translation: 根据本文教导的一个或多个方法和装置实施例，网络基站通过减慢其改变的速率或以其他方式更新应用于其发送的正交的线性预编码设置的速率来减少在网络内操作的移动站感知到的干扰的时间变化 频分复用（OFDM）信号与基站执行链路自适应的速率相比较。 也就是说，通过固定每个基站随时间推移的先前设置，相对于信道质量报告和链路自适应间隔，将移动站处的测量干扰（例如，其他小区干扰）的预编码相关分量制成准静止 间隔显着长于信道报告/链路自适应间隔。
