公开(公告)号：US20120327980A1

公开(公告)日：2012-12-27

申请号：US13495516

申请日：2012-06-13

Applicant: Krishna Kamal Sayana ,  Tyler Brown ,  Xiangyang Zhuang

Inventor： Krishna Kamal Sayana ,  Tyler Brown ,  Xiangyang Zhuang

IPC: H04B1/38 ,  H04L27/06

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0094 ,  H04L5/16 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0242

Abstract: A wireless communication terminal including a transceiver coupled to a processor and corresponding methods are disclosed. The processor is configured to determine resource elements that carry data intended for the terminal from a set of allocated resource elements that carry data intended for the terminal excluding at least resource elements associated with a first set of one or more resource elements of a particular type that are shifted relative to a known reference signal pattern. The processor is also configured to decode the resource elements that carry the data intended for the terminal based on the resource elements that carry the data intended for the terminal.

Abstract translation: 公开了一种包括耦合到处理器的收发器和相应方法的无线通信终端。 处理器被配置为确定承载来自一组分配的资源元素的资源元素的资源元素，所述资源元素携带旨在用于终端的数据至少排除与特定类型的一个或多个资源元素的第一集合相关联的资源元素， 相对于已知的参考信号图案移位。 处理器还被配置为基于承载用于终端的数据的资源元素来解码承载用于终端的数据的资源元素。

公开(公告)号：US08289863B2

公开(公告)日：2012-10-16

申请号：US12169783

申请日：2008-07-09

Applicant: Frederick W. Vook ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas

Inventor： Frederick W. Vook ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas

IPC: H04W4/00 ,  H04L12/26

CPC classification number: H04L5/0094 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0051 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03796 ,  H04L2025/03815 ,  H04W72/04

Abstract: In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.

Abstract translation: 在无线通信系统中，公开了一种用于闭环传输的方法和装置。 根据本发明的优选实施例，上行链路帧的时间频率部分被动态地保留作为用于上行链路信道探测的探测区域。 在下行链路帧中向第一用户台发送第一消息，分配探测区域内的时间 - 频率资源和发声波形。 此外，在所分配的时间 - 频率资源内从用户站接收信号，从接收到的探测信号确定部分信道响应，并且基于至少部分信道响应来定制对用户站的后续传输。

公开(公告)号：US20120243501A1

公开(公告)日：2012-09-27

申请号：US13486144

申请日：2012-06-01

Applicant: Frederick W. Vook ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas

Inventor： Frederick W. Vook ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas

IPC: H04W72/04

CPC classification number: H04L5/0094 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0051 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2613 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03796 ,  H04L2025/03815 ,  H04W72/04

Abstract: In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response.

Abstract translation: 在无线通信系统中，公开了一种用于闭环传输的方法和装置。 根据本发明的优选实施例，上行链路帧的时间频率部分被动态地保留作为用于上行链路信道探测的探测区域。 在下行链路帧中向第一用户台发送第一消息，分配探测区域内的时间 - 频率资源和发声波形。 此外，在所分配的时间 - 频率资源内从用户站接收信号，从接收到的探测信号确定部分信道响应，并且基于至少部分信道响应来定制对用户站的后续传输。

公开(公告)号：US08000293B2

公开(公告)日：2011-08-16

申请号：US12192164

申请日：2008-08-15

Applicant: Bishwarup Mondal ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas ,  Frederick W. Vook

Inventor： Bishwarup Mondal ,  Xiangyang Zhuang ,  Kevin L. Baum ,  Timothy A. Thomas ,  Frederick W. Vook

IPC: H04W4/00

CPC classification number: H04B7/0617 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639 ,  Y02D70/444

Abstract: A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the channel subspace except that the null subspace information directs a base station to the matrix in a predefined codebook that results in minimum power being received at the node. The null subspace for each node is taken into consideration when communicating with a particular node.

Abstract translation: 本文提供了一种在通信系统内执行空分多址的方法和装置。 在运行期间，节点将返回空子空间信息及其信道子空间信息。 空子空间类似于信道子空间，除了空子信息将基站指向预定义码本中的矩阵，导致在该节点处接收的最小功率。 当与特定节点进行通信时，将考虑每个节点的空子空间。

公开(公告)号：US07940740B2

公开(公告)日：2011-05-10

申请号：US12365166

申请日：2009-02-03

Applicant: Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

Inventor： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC: H04B7/208 ,  H04B7/216 ,  H04W4/00 ,  H04J3/00 ,  G01R31/08

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0091

Abstract: A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols, and transmitting the subframe. Upon receiving the subframe, a wireless device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

Abstract translation: 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号，并且发送子帧。 在接收到子帧时，无线设备基于与发送子帧的基站相关联的标识符来确定哪个传输资源集合包含PRS，并且处理包含PRS的资源集合以估计定时（例如，到达时间）信息 。

公开(公告)号：US20110085610A1

公开(公告)日：2011-04-14

申请号：US12577553

申请日：2009-10-12

Applicant: Xiangyang Zhuang ,  Krishna Kamal Sayana ,  Kenneth A. Stewart

Inventor： Xiangyang Zhuang ,  Krishna Kamal Sayana ,  Kenneth A. Stewart

IPC: H04L27/28

CPC classification number: H04B7/0626 ,  H04B7/0639 ,  H04L5/0037

Abstract: A method for configurable spatial channel information feedback in wireless communication systems is disclosed including receiving, at the wireless communication device, transmission from a plurality of antennas, receiving an indication of a feedback mode for feeding back spatial channel information that is based on correlations among at least some of the plurality of antennas, decomposing a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components, and feeding back parameters representative of the Kronecker components according to the feedback mode indicated.

Abstract translation: 公开了一种用于无线通信系统中的可配置的空间信道信息反馈的方法，包括在无线通信设备处接收来自多个天线的传输，接收用于反馈空间信道信息的反馈模式的指示，所述反馈模式基于在 所述多个天线中的至少一部分，将表示所述多个天线中的至少一些的所述相关性的相关矩阵分解为至少两个克罗内克分量，以及根据所指示的反馈模式反馈表示所述克罗内克分量的参数。

公开(公告)号：US20100260154A1

公开(公告)日：2010-10-14

申请号：US12756777

申请日：2010-04-08

Applicant: Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

Inventor： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

IPC: H04W72/12

CPC classification number: G01S5/10 ,  G01S5/0205

Abstract: A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

Abstract translation: 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号。 在接收到子帧时，无线通信设备基于与发送子帧的基站相关联的标识符来确定哪一组传输资源包含PRS，并处理包含PRS的资源集合以估计定时（例如，到达时间） 信息。

公开(公告)号：US20100120442A1

公开(公告)日：2010-05-13

申请号：US12269853

申请日：2008-11-12

Applicant: XIANGYANG ZHUANG ,  ROBERT T. LOVE ,  VIJAY NANGIA ,  AJIT NIMBALKER ,  KENNETH A. STEWART

Inventor： XIANGYANG ZHUANG ,  ROBERT T. LOVE ,  VIJAY NANGIA ,  AJIT NIMBALKER ,  KENNETH A. STEWART

IPC: H04W72/00 ,  H04B1/38

CPC classification number: H04B7/15542 ,  H04B7/15507 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0087 ,  H04L5/0094 ,  H04W72/005 ,  H04W72/04 ,  H04W72/044 ,  H04W72/1278 ,  H04W84/047 ,  H04W88/04

Abstract: A wireless communication relay terminal including a controller coupled to a transceiver wherein the controller is configured to cause the transceiver to transmit a first portion of a first sub-frame during a first time-frequency region to a wireless communication device, to cause the transceiver to receive, from a base station, a portion of a second sub-frame during a second time-frequency region wherein the first and second time-frequency regions are non-overlapping The controller is also configured to detect a control region within the portion of the second sub-frame received by attempting to decode information in a possible control region of the second sub-frame having at least one of several possible starting locations that are known a priori by the terminal.

Abstract translation: 一种无线通信中继终端，包括耦合到收发器的控制器，其中所述控制器被配置为使所述收发器在第一时间频率区域期间将第一子帧的第一部分发送到无线通信设备，以使所述收发器 在第一时间频率区域和第二时间频率区域不重叠的第二时间频率区域期间，从基站接收第二子帧的一部分。控制器还被配置为检测第二子帧的部分内的控制区域 通过尝试对具有由终端先验已知的几个可能的起始位置中的至少一个的第二子帧的可能控制区域中的信息进行解码而接收的第二子帧。

公开(公告)号：US20080310353A1

公开(公告)日：2008-12-18

申请号：US11764643

申请日：2007-06-18

Applicant: Robert Love ,  Brian Keith Classon ,  Mark Harrison ,  Krishna Kamal Sayana ,  Kenneth Anderson Stewart ,  Xiangyang Zhuang ,  Vijay Nangia

Inventor： Robert Love ,  Brian Keith Classon ,  Mark Harrison ,  Krishna Kamal Sayana ,  Kenneth Anderson Stewart ,  Xiangyang Zhuang ,  Vijay Nangia

IPC: H04Q7/00

CPC classification number: H04W72/0406 ,  H04L1/0009 ,  H04L1/0025 ,  H04W72/085

Abstract: A wireless communications system base station (101), upon receiving (202) from a mobile station (102) a wireless transmission that comprises a suggested transmitter-receiver configuration, can respond (in appropriate instances) by automatically transmitting (203) to the mobile station a wireless transmission comprising an indication to use instead a default transmitter-receiver configuration. By one approach, the latter action can be based, at least in part, upon a determination regarding reliability (301) of that suggested transmitter-receiver configuration (which might comprise, for example, a direct or indirect measure of quality of the channel by the default transmitter-receiver configuration was received) to provide a corresponding reliability assessment. The latter can then be used (302) to determine whether to use this suggested transmitter-receiver configuration for a subsequent communication with the mobile station.

Abstract translation: 无线通信系统基站（101）在从移动站（102）接收（202）无线传输时，包括建议的发射机 - 接收机配置，可以通过自动发送（203）到移动台（203）来响应（在适当的情况下） 驻留无线传输，其包括使用指示而不是默认发射机 - 接收机配置。 通过一种方法，后一动作可以至少部分地基于关于该建议的发射机 - 接收机配置的可靠性（301）的确定（其可以包括例如通过以下方式直接或间接测量信道的质量： 收到默认发射机 - 接收机配置），以提供相应的可靠性评估。 然后可以使用后者（302）来确定是否将该建议的发射机 - 接收机配置用于与移动台的后续通信。

公开(公告)号：US07126996B2

公开(公告)日：2006-10-24

申请号：US10035039

申请日：2001-12-28

Applicant: Brian K. Classon ,  Philippe J. Sartori ,  Vijay Nangia ,  Xiangyang Zhuang ,  Kevin L. Baum

Inventor： Brian K. Classon ,  Philippe J. Sartori ,  Vijay Nangia ,  Xiangyang Zhuang ,  Kevin L. Baum

IPC: H04L27/28

CPC classification number: H04L1/0026 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0018 ,  H04L25/0204 ,  H04L25/0206

Abstract: Mobile units in a multicarrier, multidimensional communications system can assess their own channel coherence time attributes (base stations can also access such dynamics for mobile units as well). This information is utilized (either by the mobile unit itself or by an infrastructure component such as a base site) to determine a level of trustworthiness for other channel quality data as might be measured by the mobile unit. Different modulation and coding schemes, along with responsive frequency and time diversity resource allocations, are adaptively selected as a function of this level of trustworthiness.