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1. 发明申请

US20080305805A1 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：US20080305805A1
公开(公告)日：2008-12-11
申请号：US12192164
申请日：2008-08-15
申请人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas , Frederick W. Vook
发明人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas , Frederick W. Vook
IPC分类号： H04Q7/20 , H04M1/00
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。

2. 发明授权

US08509112B2 Method and apparatus for closed loop transmission 有权
标题翻译：闭环传动的方法和装置
公开(公告)号：US08509112B2
公开(公告)日：2013-08-13
申请号：US13486144
申请日：2012-06-01
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W4/00 , H04L12/26
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.
摘要翻译：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，根据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到用户站的后续传输。

3. 发明授权

US08059555B2 Method and apparatus for closed loop transmission 有权
标题翻译：闭环传动的方法和装置
公开(公告)号：US08059555B2
公开(公告)日：2011-11-15
申请号：US12169771
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04W4/00 , H04L12/26
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.
摘要翻译：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。

4. 发明授权

US07848438B2 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：US07848438B2
公开(公告)日：2010-12-07
申请号：US11672275
申请日：2007-02-07
申请人： Kevin L. Baum , Brian K. Classon , Vijay Nangia , Timothy A. Thomas
发明人： Kevin L. Baum , Brian K. Classon , Vijay Nangia , Timothy A. Thomas
IPC分类号： H04L27/28
CPC分类号： H04L25/0228 , H04L5/0048 , H04L5/005 , H04L27/2613
摘要： A pilot (or reference) transmission scheme is utilized where different transmitters are assigned pilot sequences with possibly different cyclic time shifts. A pilot signal is transmitted concurrently by the transmitters in a plurality of pilot blocks, and a receiver processes the plurality of received pilot blocks to recover a channel estimate for at least one of the transmitters while suppressing the interference due to the pilot signals from the other transmitters.
摘要翻译：使用导频（或参考）传输方案，其中不同的发射机被分配具有可能不同的循环时间偏移的导频序列。导频信号由多个导频块中的发射机同时传输，并且接收机处理多个接收的导频块以恢复至少一个发射机的信道估计，同时抑制由于来自另一个的导频信号引起的干扰发射机。

5. 发明授权

US07656842B2 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：US07656842B2
公开(公告)日：2010-02-02
申请号：US11209308
申请日：2005-08-23
申请人： Timothy A. Thomas , Kevin L. Baum , Frederick W. Vook , Xiangyang Zhuang
发明人： Timothy A. Thomas , Kevin L. Baum , Frederick W. Vook , Xiangyang Zhuang
IPC分类号： H04W4/00
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。

6. 发明申请

US20080273494A1 METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION 有权
公开(公告)号：US20080273494A1
公开(公告)日：2008-11-06
申请号：US12169783
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
IPC分类号： H04Q7/00
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.

7. 发明授权

US07426198B2 Method and apparatus for performing spatial-division multiple access 有权
标题翻译：用于执行空分多址的方法和装置
公开(公告)号：US07426198B2
公开(公告)日：2008-09-16
申请号：US11275938
申请日：2006-02-06
申请人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas , Frederick W. Vook
发明人： Bishwarup Mondal , Xiangyang Zhuang , Kevin L. Baum , Timothy A. Thomas , Frederick W. 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。

8. 发明申请

US20120140843A1 METHOD AND APPARATUS FOR TRANSMISSION WITHIN A MULTI-CARRIER COMMUNCATION SYSTEM 有权
标题翻译：用于多载波通信系统中传输的方法和装置
公开(公告)号：US20120140843A1
公开(公告)日：2012-06-07
申请号：US13356665
申请日：2012-01-24
申请人： Philippe J. Sartori , Kevin L. Baum , Timothy A. Thomas
发明人： Philippe J. Sartori , Kevin L. Baum , Timothy A. Thomas
IPC分类号： H04L27/28
CPC分类号： H04L25/03866 , H04L1/06 , H04L27/2602 , H04L2025/03426
摘要： Multiple transmit antenna transmission together with preferably pseudo-random, antenna-specific, scrambling (PRAS) is utilized to scramble incoming data differently on different antennas for those users requiring frequency diversity type transmissions. When PRAS is activated for a particular allocation, each transmit antenna applies a different scrambling sequence to the data symbols that are transmitted in the allocation.
摘要翻译：多个发射天线传输与优选的伪随机天线专用加扰（PRAS）一起被用于对于需要频率分集型传输的那些用户在不同的天线上不同地扰频输入数据。当PRAS被激活用于特定分配时，每个发射天线将不同的加扰序列应用于在分配中发送的数据符号。

9. 发明申请

US20090196164A1 METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION 有权
标题翻译：闭环传输的方法和装置
公开(公告)号：US20090196164A1
公开(公告)日：2009-08-06
申请号：US12169771
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
IPC分类号： H04J11/00
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.
摘要翻译：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。

10. 发明申请

US20080267271A1 METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION 有权
标题翻译：闭环传输的方法和装置
公开(公告)号：US20080267271A1
公开(公告)日：2008-10-30
申请号：US12169797
申请日：2008-07-09
申请人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
发明人： Frederick W. Vook , Xiangyang Zhuang , Kevin L. Baum, , Timothy A. Thomas
IPC分类号： H04B1/40 , H04L27/28
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.
摘要翻译：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。

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