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1. 发明申请

US20070281624A1 METHOD AND APPARATUS FOR CHANNEL FEEDBACK 审中-公开
标题翻译：信道反馈的方法和装置
公开(公告)号：US20070281624A1
公开(公告)日：2007-12-06
申请号：US11767590
申请日：2007-06-25
申请人： Timothy Thomas , Kevin Baum , Philippe Sartori , Frederick Vook , Xiangyang Zhuang
发明人： Timothy Thomas , Kevin Baum , Philippe Sartori , Frederick Vook , Xiangyang Zhuang
IPC分类号： H04B17/00
CPC分类号： H04B7/0669 , H04L25/0204 , H04L27/2608
摘要： A method for communicating channel estimates on a plurality of subcarriers between a transmitting device and a receiving device. The transmitting device determines a channel estimates on a plurality of subcarriers and then encodes the channel estimates into at least one encoded channel waveform. Then the transmitting device transmits the at least one encoded channel waveform to the receiving device.
摘要翻译：一种用于在发射设备和接收设备之间的多个子载波上传送信道估计的方法。发送设备确定多个子载波上的信道估计，然后将信道估计编码为至少一个编码信道波形。然后，发送设备将至少一个编码信道波形发送到接收设备。

2. 发明申请

US20060067277A1 Method and apparatus for MIMO transmission optimized for successive cancellation receivers 有权
标题翻译：用于连续取消接收机优化的MIMO传输的方法和装置
公开(公告)号：US20060067277A1
公开(公告)日：2006-03-30
申请号：US11209308
申请日：2005-08-23
申请人： Timothy Thomas , Kevin Baum , Frederick Vook , Xiangyang Zhuang
发明人： Timothy Thomas , Kevin Baum , Frederick Vook , Xiangyang Zhuang
IPC分类号： H04Q7/00
CPC分类号： H04B7/0634 , H04B7/04 , H04B7/0636 , H04B7/0639 , H04B7/066 , H04B7/0691 , H04L27/2601
摘要： A method for communicating a plurality of data streams between a transmitting device with multiple transmit antennas and a receiving device, is disclosed. The method comprises determining a list consisting of a subset of the multiple transmit antennas on which the transmitting device will transmit data, determining a set of power weightings, providing the set of power weightings and the list of the subset of the multiple transmit antennas to the transmitting device, weighting a plurality of data streams by the power weightings, and transmitting the power weighted data streams on the subset of the multiple transmit antennas to the receiving device. Another aspect of the invention comprises maintaining a codebook consisting of a plurality of transmit weight vectors at both the transmitting device and the receiving device. The method also comprises determining a list consisting of a subset of the plurality of transmit weight vectors which to use for transmitting the multiple data streams, determining a set of power weightings to be use for each data stream, providing the set of power weightings and the list of the subset of the plurality of transmit weight vectors to the transmitting device, and weighting the data streams by the power weightings and beamforming the data streams with the subset of the plurality of transmit weight vectors.
摘要翻译：公开了一种在具有多个发射天线的发射装置与接收装置之间传送多个数据流的方法。该方法包括确定由发射设备将在其上发射数据的多个发射天线的子集组成的列表，确定一组功率加权，提供该组功率加权和多个发射天线的子集的列表到发送设备，通过功率加权对多个数据流进行加权，以及将多个发射天线的子集上的功率加权数据流发送到接收设备。本发明的另一方面包括在发送设备和接收设备两者处维护由多个发送权重向量组成的码本。该方法还包括确定由用于发送多个数据流的多个发射权重向量的子集组成的列表，确定要为每个数据流使用的一组功率权重，提供该组功率权重和将多个发射权重向量的子集的列表发送到发射装置，以及通过功率加权对数据流进行加权，并且利用多个发射权重向量的子集对数据流进行波束形成。

3. 发明申请

US20070183362A1 METHOD AND APPARATUS FOR PERFORMING SPATIAL-DIVISION MULTIPLE ACCESS 有权
标题翻译：用于执行空间分割多路访问的方法和装置
公开(公告)号：US20070183362A1
公开(公告)日：2007-08-09
申请号：US11275938
申请日：2006-02-06
申请人： Bishwarup Mondal , Xiangyang Zhuang , Kevin Baum , Timothy Thomas , Frederick Vook
发明人： Bishwarup Mondal , Xiangyang Zhuang , Kevin Baum , Timothy Thomas , Frederick Vook
IPC分类号： H04Q7/00
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0634 , H04B7/0639 , Y02D70/444
摘要： 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.
摘要翻译：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码本中的矩阵，导致节点接收的最小功率。当与特定节点进行通信时，将考虑每个节点的空子空间。

4. 发明申请

US20060094435A1 Method and apparatus for channel feedback 失效
标题翻译：频道反馈的方法和装置
公开(公告)号：US20060094435A1
公开(公告)日：2006-05-04
申请号：US11253239
申请日：2005-10-18
申请人： Timothy Thomas , Kevin Baum , Philippe Sartori , Frederick Vook , Xiangyang Zhuang
发明人： Timothy Thomas , Kevin Baum , Philippe Sartori , Frederick Vook , Xiangyang Zhuang
IPC分类号： H04Q7/20
CPC分类号： H04B7/0669 , H04L25/0204 , H04L27/2608
摘要： A method for communicating channel estimates on a plurality of subcarriers between a transmitting device and a receiving device. The transmitting device determines a channel estimates on a plurality of subcarriers and then encodes the channel estimates into at least one encoded channel waveform. Then the transmitting device transmits the at least one encoded channel waveform to the receiving device.
摘要翻译：一种用于在发射设备和接收设备之间的多个子载波上传送信道估计的方法。发送设备确定多个子载波上的信道估计，然后将信道估计编码为至少一个编码信道波形。然后，发送设备将至少一个编码信道波形发送到接收设备。

5. 发明申请

US20060035643A1 Method and apparatus for closed loop transmission 有权
公开(公告)号：US20060035643A1
公开(公告)日：2006-02-16
申请号：US11004262
申请日：2004-12-03
申请人： Frederick Vook , Xiangyang Zhuang , Kevin Baum , Timothy Thomas
发明人： Frederick Vook , Xiangyang Zhuang , Kevin Baum , Timothy Thomas
IPC分类号： H04Q7/20
CPC分类号： H04L5/0094 , H04L5/0023 , H04L5/0026 , H04L5/0051 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03796 , H04L2025/03815 , H04W72/04
摘要： 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.

6. 发明申请

US20050226140A1 Method and apparatus for pilot signal transmission 有权
标题翻译：导频信号传输的方法和装置
公开(公告)号：US20050226140A1
公开(公告)日：2005-10-13
申请号：US10813476
申请日：2004-03-30
申请人： Xiangyang Zhuang , Kevin Baum , Vijay Nangia , Frederick Vook
发明人： Xiangyang Zhuang , Kevin Baum , Vijay Nangia , Frederick Vook
IPC分类号： H04B1/69 , H04B1/707 , H04J11/00 , H04J13/00 , H04L27/26
CPC分类号： H04L27/2613 , H04B1/69 , H04B2001/6912 , H04B2201/70701 , H04J13/00 , H04J13/16
摘要： Pilot sequences are constructed from distinct “classes” of chirp sequences that have an optimal cross correlation property. Utilization of chirp sequences for pilot sequences results in pilot sequences that have optimal or nearly-optimal cross correlation and auto-correlation properties.
摘要翻译：导频序列由具有最佳互相关性质的啁啾序列的不同“类”构成。啁啾序列对导频序列的利用导致具有最佳或接近最优的互相关和自相关性质的导频序列。

7. 发明申请

US20060039451A1 Method and apparatus for fast cell search 审中-公开
标题翻译：用于快速小区搜索的方法和装置
公开(公告)号：US20060039451A1
公开(公告)日：2006-02-23
申请号：US11109412
申请日：2005-04-19
申请人： Xiangyang Zhuang , Kevin Baum
发明人： Xiangyang Zhuang , Kevin Baum
IPC分类号： H04L27/30
CPC分类号： H04L27/261 , H04L5/0007 , H04L5/0048 , H04L27/2607 , H04L27/2613 , H04L27/2614
摘要： A method and apparatus for identifying a base station is provided herein. Particularly, a received reference sequence comprising a GCL-based sequence is analyzed to determine an index of the GCL-based sequence. The index of the GCL-based sequence is then mapped to a base station identity.
摘要翻译：本文提供了一种用于识别基站的方法和装置。特别地，分析包含基于GCL的序列的接收参考序列，以确定基于GCL的序列的索引。然后将基于GCL的序列的索引映射到基站标识。

8. 发明申请

US20060009227A1 Method and apparatus for reference signal selection in a cellular system 有权
标题翻译：用于蜂窝系统中参考信号选择的方法和装置
公开(公告)号：US20060009227A1
公开(公告)日：2006-01-12
申请号：US11150953
申请日：2005-06-13
申请人： Mark Cudak , Kevin Baum , Frederick Vook
发明人： Mark Cudak , Kevin Baum , Frederick Vook
IPC分类号： H04Q7/20
CPC分类号： H04W48/08 , H04L5/0007 , H04L5/005 , H04L27/2613 , H04L27/2656 , H04W16/06 , H04W16/18
摘要： In a wireless communication system, a method and apparatus for reference signal selection is disclosed. In accordance with the preferred embodiment of the present invention, a first reference signal in a first cell is pseudo-randomly selected from a predetermined limited set of reference signals for transmission on a first channel resource. A second reference signal in the cell is pseudo-randomly selected from the predetermined limited set of reference signals for transmission on a second channel resource, where the predetermined limited set of reference signals is common among the first cell and at least a second cell.
摘要翻译：在无线通信系统中，公开了一种用于参考信号选择的方法和装置。根据本发明的优选实施例，第一小区中的第一参考信号从用于在第一信道资源上传输的预定有限的参考信号集中伪随机地选择。小区中的第二参考信号从用于在第二信道资源上传输的预定的有限参考信号集中被伪随机地选择，其中预定的有限参考信号集合在第一小区和至少第二小区中是共同的。

9. 发明申请

US20070036066A1 METHOD AND APPARATUS FOR PILOT SIGNAL TRANSMISSION 有权
标题翻译：引导信号传输的方法和装置
公开(公告)号：US20070036066A1
公开(公告)日：2007-02-15
申请号：US11419797
申请日：2006-05-23
申请人： Timothy Thomas , Kevin Baum , Brian Classon , Vijay Nangia
发明人： Timothy Thomas , Kevin Baum , Brian Classon , Vijay Nangia
IPC分类号： H04J11/00 , H04B3/10
CPC分类号： H04B7/0678 , H04L5/0023 , H04L5/0048
摘要： A pilot transmission scheme is presented where during a first OFDM symbol period a first pilot sequence is transmitted over a first multiple sub-carriers on a first group of antennas. During a second OFDM symbol period, a second pilot sequence is transmitted over a second multiple sub-carriers on a second group of antennas. The first and the second groups of antennas only transmit one pilot sequence every subframe of M OFDM symbol periods.
摘要翻译：提出了一种导频传输方案，其中在第一OFDM符号周期期间，在第一组天线上的第一多个子载波上发送第一导频序列。在第二OFDM符号周期期间，在第二组天线上的第二多个子载波上发送第二导频序列。第一组和第二组天线只在M个OFDM符号周期的每个子帧上发送一个导频序列。

10. 发明申请

US20070183307A1 Method and apparatus for initial acquisition and cell search for an OFDMA system 有权
标题翻译：用于OFDMA系统的初始采集和小区搜索的方法和装置
公开(公告)号：US20070183307A1
公开(公告)日：2007-08-09
申请号：US11351306
申请日：2006-02-08
申请人： Hidenori Akita , Kevin Baum , Brian Classon , Masaya Fukuta , Hiroshi Hayashi , Vijay Nangia , Robert Love , Kenneth Stewart
发明人： Hidenori Akita , Kevin Baum , Brian Classon , Masaya Fukuta , Hiroshi Hayashi , Vijay Nangia , Robert Love , Kenneth Stewart
IPC分类号： H04J3/06 , H04J11/00
CPC分类号： H04W48/16 , H04J11/0073 , H04L5/0007 , H04L27/2613 , H04L27/2655 , H04L27/2656 , H04L27/266 , H04L27/2663
摘要： A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816) and including information for providing at least partial cell identification information (812). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
摘要翻译：提供了一种用于发送包括在OFDMA信号（818）的带宽的局部部分内发送的同步信道信号的正交频域多址（OFDMA）信号的方法和装置，所述同步信道信号具有在带宽的局部部分（816）并且包括用于提供至少部分小区识别信息的信息（812）。同步信道信号支持在支持多个系统带宽的OFDMA系统中提供OFDMA符号定时检测和频率误差检测（1112）和帧边界检测和小区特定信息检测（1114）的具有低计算负荷的初始采集和小区搜索方法，同步和非同步的系统，大的信元索引和具有短和长循环前缀长度的OFDMA符号结构。

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