公开(公告)号：US08537790B2

公开(公告)日：2013-09-17

申请号：US12367483

申请日：2009-02-06

申请人： Mark C. Cudak ,  Timothy A. Thomas ,  Frederick W. Vook ,  Anup K. Talukdar ,  Fan Wang ,  Bishwarup Mondal

发明人： Mark C. Cudak ,  Timothy A. Thomas ,  Frederick W. Vook ,  Anup K. Talukdar ,  Fan Wang ,  Bishwarup Mondal

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04L1/06 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/03248

摘要： A method for communicating control channel information in a wireless communication system, including transmitting a super-frame having a time-frequency resource region containing an allocation control channel and multiple pilot elements, at least some of which are associated with the allocation control channel, and indicating, in a configuration information control channel of the super-frame, a characteristic of the pilots elements associated with the allocation control channel.

摘要翻译： 一种用于在无线通信系统中传送控制信道信息的方法，包括发送具有包含分配控制信道的时间 - 频率资源区域和多个导频元素的超帧，其中至少一些与分配控制信道相关联，以及 在超帧的配置信息控制信道中指示与分配控制信道相关联的导频元素的特性。

公开(公告)号：US08243678B2

公开(公告)日：2012-08-14

申请号：US12367473

申请日：2009-02-06

申请人： Mark C Cudak ,  Amitabha Ghosh ,  Bishwarup Mondal ,  Anup K Talukdar ,  Timothy A Thomas ,  Frederick W Vook ,  Fan Wang ,  Xiangyang Zhuang

发明人： Mark C Cudak ,  Amitabha Ghosh ,  Bishwarup Mondal ,  Anup K Talukdar ,  Timothy A Thomas ,  Frederick W Vook ,  Fan Wang ,  Xiangyang Zhuang

IPC分类号： H04W4/00

CPC分类号： H04L5/0007 ,  H04L1/06 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/03248

摘要： A method for communicating control channel information in a wireless communication system, including transmitting a super-frame having a time-frequency resource region containing an allocation control channel and multiple pilot elements, at least some of which are associated with the allocation control channel, and indicating, in a configuration information control channel of the super-frame, a characteristic of the pilots elements associated with the allocation control channel.

摘要翻译： 一种用于在无线通信系统中传送控制信道信息的方法，包括发送具有包含分配控制信道的时间 - 频率资源区域和多个导频元素的超帧，其中至少一些与分配控制信道相关联，以及 在超帧的配置信息控制信道中指示与分配控制信道相关联的导频元素的特性。

公开(公告)号：US20090225721A1

公开(公告)日：2009-09-10

申请号：US12367473

申请日：2009-02-06

申请人： MARK C. CUDAK ,  Amitabha Ghosh ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Timothy A. Thomas ,  Frederick W. Vook ,  Fan Wang ,  Xiangyang Zhuang

发明人： MARK C. CUDAK ,  Amitabha Ghosh ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Timothy A. Thomas ,  Frederick W. Vook ,  Fan Wang ,  Xiangyang Zhuang

IPC分类号： H04W72/04

CPC分类号： H04L5/0007 ,  H04L1/06 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/03248

摘要： A method for communicating control channel information in a wireless communication system, including transmitting a super-frame having a time-frequency resource region containing an allocation control channel and multiple pilot elements, at least some of which are associated with the allocation control channel, and indicating, in a configuration information control channel of the super-frame, a characteristic of the pilots elements associated with the allocation control channel.

公开(公告)号：US08391173B2

公开(公告)日：2013-03-05

申请号：US12776499

申请日：2010-05-10

申请人： Mark C. Cudak ,  Amitabha Ghosh ,  William J. Hillery ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Eugene Visotsky ,  Frederick W. Vook ,  Fan Wang

发明人： Mark C. Cudak ,  Amitabha Ghosh ,  William J. Hillery ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Eugene Visotsky ,  Frederick W. Vook ,  Fan Wang

IPC分类号： H04W4/00

CPC分类号： H04W16/02 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0094 ,  H04W28/16

摘要： In an OFDM communication system, wherein a frequency bandwidth is divided into multiple Physical Resource Units (PRUs), a Frequency Partitioning Configuration Module (FPCM) is provided that configures a physical layer for use in multiple coverage areas. The FPCM divides the PRUs into a first group, for frequency selective allocations, and a second group, for frequency diverse allocations. The FPCM subdivides each of the two groups into multiple sets of PRUs, maps the sets of PRUs from the first group to consecutive PRUs allocated for contiguous segment allocation (CS-PRUs), and maps the sets of PRUs from the second group to consecutive PRUs allocated for distributed segment allocation (DS-PRUs). The FPCM permutes the DS-PRUs and allocates the CS-PRUs and the permuted DS-PRUs to at least one frequency partition.

摘要翻译： 在其中将频率带宽划分为多个物理资源单元（PRU）的OFDM通信系统中，提供了配置用于多个覆盖区域的物理层的频率分配配置模块（FPCM）。 FPCM将PRU划分为第一组，用于频率选择性分配，第二组用于频率不同的分配。 FPCM将两组中的每一个细分为多组PRU，将来自第一组的PRU集合映射到为连续分段分配（CS-PRU）分配的连续PRU，并将来自第二组的PRU集合映射到连续PRU 分配给分布式分段分配（DS-PRU）。 FPCM将DS-PRU置换并将CS-PRU和置换的DS-PRU分配给至少一个频率分区。

公开(公告)号：US20100284482A1

公开(公告)日：2010-11-11

申请号：US12776499

申请日：2010-05-10

申请人： Mark C. Cudak ,  Amitabha Ghosh ,  William J. Hillery ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Eugene Visotsky ,  Frederick W. Vook ,  Fan Wang

发明人： Mark C. Cudak ,  Amitabha Ghosh ,  William J. Hillery ,  Bishwarup Mondal ,  Anup K. Talukdar ,  Eugene Visotsky ,  Frederick W. Vook ,  Fan Wang

IPC分类号： H04L5/12

CPC分类号： H04W16/02 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0094 ,  H04W28/16

摘要： In an OFDM communication system, wherein a frequency bandwidth is divided into multiple Physical Resource Units (PRUs), a Frequency Partitioning Configuration Module (FPCM) is provided that configures a physical layer for use in multiple coverage areas. The FPCM divides the PRUs into a first group, for frequency selective allocations, and a second group, for frequency diverse allocations. The FPCM subdivides each of the two groups into multiple sets of PRUs, maps the sets of PRUs from the first group to consecutive PRUs allocated for contiguous segment allocation (CS-PRUs), and maps the sets of PRUs from the second group to consecutive PRUs allocated for distributed segment allocation (DS-PRUs). The FPCM permutes the DS-PRUs and allocates the CS-PRUs and the permuted DS-PRUs to at least one frequency partition.

摘要翻译： 在其中将频率带宽划分为多个物理资源单元（PRU）的OFDM通信系统中，提供了配置用于多个覆盖区域的物理层的频率分配配置模块（FPCM）。 FPCM将PRU划分为第一组，用于频率选择性分配，第二组用于频率不同的分配。 FPCM将两组中的每一个细分为多组PRU，将来自第一组的PRU集合映射到为连续分段分配（CS-PRU）分配的连续PRU，并将来自第二组的PRU集合映射到连续PRU 分配给分布式分段分配（DS-PRU）。 FPCM将DS-PRU置换并将CS-PRU和置换的DS-PRU分配给至少一个频率分区。

公开(公告)号：US20100260234A1

公开(公告)日：2010-10-14

申请号：US12421573

申请日：2009-04-09

申请人： Timothy A. Thomas ,  William J. Hillery ,  Bishwarup Mondal ,  Frederick W. Vook ,  Fan Wang

发明人： Timothy A. Thomas ,  William J. Hillery ,  Bishwarup Mondal ,  Frederick W. Vook ,  Fan Wang

IPC分类号： H04B1/707

CPC分类号： H04L1/0026 ,  H04B1/7103 ,  H04B7/0417 ,  H04B7/066 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04J13/0003 ,  H04L1/1607 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/0206 ,  H04L25/021 ,  H04L25/0228 ,  H04L25/0248 ,  H04L25/03343 ,  H04L27/2626 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04L2025/03815

摘要： Channel information feedback takes place by calculating channel information to feed back to the base station. The channel quality information is spread by a remote unit with spreading codes from mutually unbiased bases and transmitted to the base station. The advantages of spreading the feedback channel are that multiple mobiles can send their feedback on the same time-frequency resources making the feedback very efficient and also improving feedback performance through orthogonal spreading which gives a spreading gain above noise and interference. Using the spreading codes from mutually unbiased bases can reduce interference across sectors.

摘要翻译： 信道信息反馈通过计算信道信息反馈给基站进行。 信道质量信息由具有来自相互无偏置的基站的扩展码的远程单元传播并被发送到基站。 扩展反馈信道的优点是，多个移动台可以在相同的时间 - 频率资源上发送其反馈，从而使得该反馈非常有效，并且还通过正交扩频来提高反馈性能，其给出高于噪声和干扰的扩频增益。 使用来自相互无偏的基地的扩展码可以减少扇区之间的干扰。

公开(公告)号：US20120147813A1

公开(公告)日：2012-06-14

申请号：US12965949

申请日：2010-12-13

申请人： Eugene Visotsky ,  Mark C. Cudak ,  William J. Hillery ,  Arvind Krishnamoorthy ,  Bishwarup Mondal ,  Frederick W. Vook

发明人： Eugene Visotsky ,  Mark C. Cudak ,  William J. Hillery ,  Arvind Krishnamoorthy ,  Bishwarup Mondal ,  Frederick W. Vook

IPC分类号： H04W4/00

CPC分类号： H04B7/0623 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0669 ,  H04B7/0671 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0053

摘要： During operation, the choice of the initial ranging code (sometimes referred to as a ranging preamble code, or a random-access preamble) at the mobile station is associated with a PMI feedback to be signaled to the base station during the initial ranging. More particularly, during initial system access a ranging code is transmitted by the mobile station to the base station. The mobile station chooses one of the available ranging codes based on the channel conditions and associates the ranging code with channel feedback information. The ranging code is then transmitted to the base station, and provides the base station with the channel feedback information.

摘要翻译： 在操作期间，移动站处的初始测距码（有时称为测距前导码或随机接入前同步码）的选择与在初始测距期间向基站发信号通知的PMI反馈相关联。 更具体地，在初始系统接入期间，测距码由移动台发送到基站。 移动台基于信道条件选择可用的测距码之一，并将测距码与信道反馈信息相关联。 然后将测距码发送到基站，并向基站提供信道反馈信息。

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。

公开(公告)号：US08000293B2

公开(公告)日：2011-08-16

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： H04W4/00

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。

公开(公告)号：US20110105051A1

公开(公告)日：2011-05-05

申请号：US12872085

申请日：2010-08-31

申请人： Timothy A. Thomas ,  Bishwarup Mondal ,  Eugene Visotsky ,  Frederick W. Vook

发明人： Timothy A. Thomas ,  Bishwarup Mondal ,  Eugene Visotsky ,  Frederick W. Vook

IPC分类号： H04B7/005

CPC分类号： H04L27/2601 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0641 ,  H04L25/0242 ,  H04L25/03006 ,  H04L25/03343 ,  H04L2025/03426

摘要： A method and apparatus for providing channel feedback is provided herein. During operation a covariance matrix at time t (R) is calculated as a function of a received downlink signal. Matrix Ct is also calculated and is based on a previous quantized covariance matrix (Rqt-1), the covariance matrix (R) at time t, and a forgetting factor (γ) that is applied to Rqt-1. The Ct is then used to create a DERC feedback message (signal or waveform) and may be transmitted with pilots on a proper feedback channel to a base unit. The base unit receives the feedback (Ct) as a DERC waveform on a proper feedback channel. The base unit uses non-coherent or coherent detection to detect the DERC values send by the remote unit and uses the DERC values with a previous quantized covariance matrix estimate, a forgetting factor, and a weighting value to compute a covariance matrix estimate to use for beamforming. The base unit then uses the covariance matrix estimate to determine appropriate channel beamforming weights, and instructs transmit beamforming circuitry to use the appropriate weights.

摘要翻译： 本文提供了一种用于提供信道反馈的方法和装置。 在运行期间，计算时间t（R）处的协方差矩阵作为接收的下行链路信号的函数。 还计算矩阵Ct，并且基于先前的量化协方差矩阵（Rqt-1），时间t的协方差矩阵（R）和应用于Rqt-1的遗忘因子（γ）。 然后，Ct用于创建DERC反馈消息（信号或波形），并且可以在适当的反馈信道上的导频发送到基本单元。 基本单元在适当的反馈通道上接收反馈（Ct）作为DERC波形。 基本单元使用非相干或相干检测来检测远程单元发送的DERC值，并且使用具有先前的量化协方差矩阵估计，遗忘因子和加权值的DERC值来计算协方差矩阵估计，以用于 波束成形。 基本单元然后使用协方差矩阵估计来确定适当的信道波束成形权重，并且指示发送波束成形电路使用适当的权重。