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1. 发明申请

US20100111232A1 METHOD AND APPARATUS FOR ITERATIVE RECEIVER STRUCTURES FOR OFDM/MIMO SYSTEMS WITH BIT INTERLEAVED CODED MODULATION 有权
标题翻译：用于具有位交互编码调制的OFDM / MIMO系统的迭代接收机结构的方法和装置
公开(公告)号：US20100111232A1
公开(公告)日：2010-05-06
申请号：US12558367
申请日：2009-09-11
申请人： Haralabos Papadopoulos , Ming-Yang Chen , Sean A. Ramprashad
发明人： Haralabos Papadopoulos , Ming-Yang Chen , Sean A. Ramprashad
IPC分类号： H04L27/06
CPC分类号： H04L1/06 , H04L1/005 , H04L25/03216 , H04L27/2647
摘要： The techniques and components described herein may improve the performance for a class of reduced-complexity receiver designs for coded OFDM MIMO systems with bit interleaved coded modulation. The receiver structures described are soft-input soft-output inner/outer decoder receiver structures that include one or more of the following: 1) an inner decoder that includes a linear front-end followed by a limited tree-search based on a soft-output M-algorithm; 2) a conventional near-optimal or optimal decoder for the outer binary code; and 3) iterative decoding (ID), whereby decoding (output) information is passed from one decoder module as input to the other and used to refine and improve the inner/outer decoding module outputs.
摘要翻译：本文描述的技术和组件可以改进具有比特交织编码调制的编码OFDM MIMO系统的一类降低复杂度的接收机设计的性能。所描述的接收器结构是包括以下一个或多个的软输入软输出内/外解码器接收器结构：1）内部解码器，其包括线性前端，随后是基于软启动的有限树搜索，输出M算法; 2）用于外部二进制码的常规近似或最优解码器; 和3）迭代解码（ID），由此解码（输出）信息作为输入从一个解码器模块传递到另一个解码器模块，并用于细化和改进内/外解码模块输出。

2. 发明授权

US08855221B2 Method and apparatus for iterative receiver structures for OFDM/MIMO systems with bit interleaved coded modulation 有权
标题翻译：用于具有位交织编码调制的OFDM / MIMO系统的迭代接收机结构的方法和装置
公开(公告)号：US08855221B2
公开(公告)日：2014-10-07
申请号：US12558367
申请日：2009-09-11
申请人： Haralabos Papadopoulos , Ming-Yang Chen , Sean A. Ramprashad
发明人： Haralabos Papadopoulos , Ming-Yang Chen , Sean A. Ramprashad
IPC分类号： H04K1/10 , H04L1/06 , H04L25/03 , H04L27/26 , H04L1/00
CPC分类号： H04L1/06 , H04L1/005 , H04L25/03216 , H04L27/2647
摘要： The techniques and components described herein may improve the performance for a class of reduced-complexity receiver designs for coded OFDM MIMO systems with bit interleaved coded modulation. The receiver structures described are soft-input soft-output inner/outer decoder receiver structures that include one or more of the following: 1) an inner decoder that includes a linear front-end followed by a limited tree-search based on a soft-output M-algorithm; 2) a conventional near-optimal or optimal decoder for the outer binary code; and 3) iterative decoding (ID), whereby decoding (output) information is passed from one decoder module as input to the other and used to refine and improve the inner/outer decoding module outputs.
摘要翻译：本文描述的技术和组件可以改进具有比特交织编码调制的编码OFDM MIMO系统的一类降低复杂度的接收机设计的性能。所描述的接收器结构是包括以下一个或多个的软输入软输出内/外解码器接收器结构：1）内部解码器，其包括线性前端，随后是基于软启动的有限树搜索，输出M算法; 2）用于外部二进制码的常规近似或最优解码器; 和3）迭代解码（ID），由此解码（输出）信息作为输入从一个解码器模块传递到另一个解码器模块，并用于细化和改进内/外解码模块输出。

3. 发明授权

US08705484B2 Method for varying transmit power patterns in a multi-cell environment 有权
标题翻译：在多小区环境中改变发射功率模式的方法
公开(公告)号：US08705484B2
公开(公告)日：2014-04-22
申请号：US12538739
申请日：2009-08-10
申请人： Giuseppe Caire , Haralabos Papadopoulos , Sean A. Ramprashad , Christine Pepin
发明人： Giuseppe Caire , Haralabos Papadopoulos , Sean A. Ramprashad , Christine Pepin
IPC分类号： H04W4/00 , H04W40/00
CPC分类号： H04W52/34 , H04L5/0007 , H04L5/0032 , H04W16/30
摘要： A method and apparatus is disclosed herein for varying transmit power patterns in a multi-cell wireless transmission environment. In one embodiment, the method comprises varying transmit power coordination patterns for base stations in the wireless communication system to jointly vary base station power over a set of virtual channels over base stations within a cluster and across clusters of base stations; and jointly transmitting by groups of the base stations to one or more user terminals in their respective clusters based on the transmit power coordination patterns.
摘要翻译：本文公开了一种在多小区无线传输环境中改变发射功率模式的方法和装置。在一个实施例中，该方法包括改变无线通信系统中的基站的发射功率协调模式，以在群集内和跨基站群上的基站上共同改变在一组虚拟信道上的基站功率; 并且基于所述发射功率协调模式，将所述基站的组共同发送到其各自的集群中的一个或多个用户终端。

4. 发明授权

US08688154B2 Method and apparatus for communicating with blind interference alignment using power allocation and/or transmission architecture 有权
标题翻译：用于使用功率分配和/或传输架构与盲目干扰对准进行通信的方法和装置
公开(公告)号：US08688154B2
公开(公告)日：2014-04-01
申请号：US13223762
申请日：2011-09-01
申请人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
发明人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
IPC分类号： H04W24/02 , H04B15/00
CPC分类号： H04B7/0452 , H04B7/024 , H04B7/0822 , H04B7/0871 , H04W52/243 , H04W52/30
摘要： A method and system are disclosed herein for power allocation and/or clustering in a wireless communication system that uses blind interference alignment. In one embodiment, the system comprises a plurality of receivers, where each receiver in the plurality has a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The system also includes a plurality of base stations to perform cluster-based transmission, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a blind interference alignment (BIA) scheme, and wherein the plurality of base stations are grouped in different clusters at different times according to cluster patterns.
摘要翻译：本文公开了一种使用盲目干扰对准的无线通信系统中的功率分配和/或聚类的方法和系统。在一个实施例中，系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，该多模天线具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机在多个天线方式。该系统还包括多个基站以执行基于簇的传输，多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与多个接收机中的一个或多个接收机进行通信使用盲目干扰对准（BIA）方案，并且其中所述多个基站根据群集模式在不同时间被分组成不同的群集。

5. 发明授权

US08229443B2 Method of combined user and coordination pattern scheduling over varying antenna and base-station coordination patterns in a multi-cell environment 有权
标题翻译：在多小区环境中改变天线和基站协调模式的组合用户和协调模式调度的方法
公开(公告)号：US08229443B2
公开(公告)日：2012-07-24
申请号：US12538733
申请日：2009-08-10
申请人： Giuseppe Caire , Sean A. Ramprashad , Haralabos Papadopoulos
发明人： Giuseppe Caire , Sean A. Ramprashad , Haralabos Papadopoulos
IPC分类号： H04W40/00
CPC分类号： H04W16/28 , H04W28/16
摘要： A method and system is disclosed herein for scheduling in a multi-cell environment. In one embodiment, the system comprises a plurality of user terminals; a plurality of base stations to communicate with the plurality of user terminals, wherein the plurality of antennas from the base stations are grouped into coordination patterns that specify which antennas operate together as a cluster to coordinate transmissions with a subset of the plurality of user terminals, and further wherein defined pairs of the antenna sets and associated user sets vary over transmission resources based on coordination pattern changes such that different sets of antennas in the plurality of antennas are grouped together on different resources to coordinate transmissions to different subsets of users; and at least one controller to execute at least one scheduling algorithm to schedule transmissions with user terminals by specifying which user terminal to schedule for service by which sets of antennas and on which transmission resource and with what transmission rate.
摘要翻译：本文公开了一种用于在多小区环境中进行调度的方法和系统。在一个实施例中，系统包括多个用户终端; 多个基站，用于与多个用户终端进行通信，其中来自基站的多个天线被分组成协调模式，这些协调模式指定哪些天线一起工作为群集以协调与多个用户终端的子集的传输，并且其中所述天线组和相关联的用户组的定义对基于协调模式改变在传输资源之上变化，使得所述多个天线中的不同天线集合在不同的资源上以协调对不同用户子集的传输; 以及至少一个控制器，用于执行至少一个调度算法以通过指定哪个用户终端通过哪些天线集合以及在哪个传输资源上以及以什么传输速率来指定哪个用户终端来调度与用户终端的传输。

6. 发明申请

US20100040163A1 CHANNEL CLASSIFICATION AND RATE ADAPTATION FOR SU-MIMO SYSTEMS 有权
标题翻译：用于SU-MIMO系统的信道分类和速率适应
公开(公告)号：US20100040163A1
公开(公告)日：2010-02-18
申请号：US12538736
申请日：2009-08-10
申请人： Giuseppe Caire , Carl-Erik W. Sundberg , Haralabos Papadopoulos , Sean A. Ramprashad
发明人： Giuseppe Caire , Carl-Erik W. Sundberg , Haralabos Papadopoulos , Sean A. Ramprashad
IPC分类号： H04B7/02 , H04L5/12
CPC分类号： H04L1/0025 , H04L1/0003 , H04L1/0009 , H04L1/0036
摘要： A method, apparatus and system are disclosed herein for channel classification and adaptation. In one embodiment, the system comprises a base station having a transmitter that is operable to transmit wireless signals using a plurality of transmission options; and a user terminal having a receiver that is operable to receive and decode wireless signals using a plurality of receiver algorithms, where the user terminal is operable to receive communications from the transmitter over a multiple-input, multiple output (MIMO) channel, to select at least one coding mode to be used by the transmitter on the channel based on rates achievable using MIMO transmission, in view of the channel information, using different combinations of one of the plurality of receiver algorithms and one of the plurality of transmission options, and to send information to identify the at least one coding mode to the base station using a feedback channel, each coding mode specifying at least an encoder to be used by the transmitter for the channel.
摘要翻译：本文公开了用于信道分类和适配的方法，装置和系统。在一个实施例中，该系统包括具有可操作以使用多个传输选项传输无线信号的发射机的基站; 以及具有接收机的用户终端，所述接收机可操作以使用多个接收机算法来接收和解码无线信号，其中所述用户终端可操作以通过多输入多输出（MIMO）信道从所述发射机接收通信，以选择考虑到信道信息，使用多个接收机算法中的一个接收机算法和多个传输选项之一的不同组合，基于信道上的发射机使用的至少一个编码模式，使用MIMO传输可实现的速率，以及使用反馈信道向基站发送用于识别至少一个编码模式的信息，每个编码模式至少指定要由发射机用于信道的编码器。

7. 发明授权

US08787259B2 Method for efficient MU-MIMO transmission by joint assignments of transmission architecture, and interference alignment schemes using optimized user-code assignments and power-allocation 有权
标题翻译：通过传输架构的联合分配进行高效MU-MIMO传输的方法，以及使用优化的用户代码分配和功率分配的干扰对准方案
公开(公告)号：US08787259B2
公开(公告)日：2014-07-22
申请号：US13239167
申请日：2011-09-21
申请人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
发明人： Haralabos Papadopoulos , Sean A. Ramprashad , Chenwei Wang
IPC分类号： H04W4/00 , H04B7/08 , H04B7/04 , H04B7/02
CPC分类号： H04B7/0822 , H04B7/024 , H04B7/0413
摘要： A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource.
摘要翻译：本文公开了一种用于在系统中操作BIA代码结构的方法，装置和无线通信系统。在一个实施例中，无线通信系统包括多个接收机，其中多个接收机中的每个接收机具有多模天线，其具有可在多个天线模式中操作的单个射频（RF）链，并且其中每个接收机以预定的方式在多个天线模式之间移动。无线通信系统还包括在小区拓扑中的多个基站以对多个接收机执行下行链路传输，所述多个基站中的每个基站具有一个或多个具有发射天线的发射机，并且可操作以与一个使用基于多用户MIMO（MU-MIMO）的盲干扰对准（BIA）方案在多个接收机中使用多个接收机，其中多个基站中的每个有源基站在给定的基站中操作相同的BIA码结构传输资源。

8. 发明申请

US20080225751A1 METHOD AND APPARATUS FOR PRIORITIZED INFORMATION DELIVERY WITH NETWORK CODING OVER TIME-VARYING NETWORK TOPOLOGIES 有权
标题翻译：用于通过网络编码进行改进的信息交付的时变网络拓扑的方法和装置
公开(公告)号：US20080225751A1
公开(公告)日：2008-09-18
申请号：US12040653
申请日：2008-02-29
申请人： Ulas C. Kozat , Christine Pepin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
发明人： Ulas C. Kozat , Christine Pepin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
IPC分类号： H04L12/28
CPC分类号： H04W40/12 , H04L12/1881 , H04L41/12 , H04L41/5003 , H04L41/5054 , H04L45/14 , H04L45/16 , H04L45/30 , H04L45/38 , H04L47/10 , H04L47/125 , H04L47/15 , H04L47/24 , H04L47/2408 , H04L47/2441 , H04L47/38 , H04L47/6215
摘要： A method and apparatus is disclosed herein for information delivery with network coding over time-varying network topologies. In one embodiment, the method comprises decomposing a sequence of topology graphs that model a time-varying network topology into a plurality of virtual graphs, where each virtual graph of the plurality of virtual graphs corresponds to a distinct traffic class, and the virtual topology graph representing a partial topology of a time-varying network. The method also includes selecting a network code for each virtual graph in the plurality of the virtual graphs to meet requirements of the distinct traffic class corresponding to said each topology graph, where the network code is used to encode packets of the associated traffic class, and processing packets of each traffic class using the network code determined by its corresponding virtual topology and the requirements of said each traffic class, including using a virtual buffer system to implement the network code corresponding to each traffic class over the physical network topology. The method also includes using a scheduler to determine the transmission schedules for each output packet from the virtual buffer system of each traffic class where the scheduling decisions are based, at least in part, on the QoS requirements of each class.
摘要翻译：本文公开了一种用于通过随时间变化的网络拓扑进行网络编码的信息传递的方法和装置。在一个实施例中，该方法包括分解将时变网络拓扑建模成多个虚拟图的拓扑图序列，其中多个虚拟图中的每个虚拟图对应于不同的流量类别，虚拟拓扑图代表时变网络的部分拓扑。该方法还包括为多个虚拟图中的每个虚拟图选择网络代码以满足对应于所述每个拓扑图的不同流量类别的要求，其中网络代码用于对相关联的流量类别的分组进行编码;以及使用由其对应的虚拟拓扑确定的网络代码和所述每个流量类别的要求来处理每个流量类别的分组，包括使用虚拟缓冲器系统来实现通过物理网络拓扑对应于每个流量类别的网络代码。该方法还包括使用调度器至少部分地基于每个类的QoS要求来确定来自调度决策所基于的每个业务类别的虚拟缓冲器系统的每个输出分组的传输调度。

9. 发明授权

US08861356B2 Method and apparatus for prioritized information delivery with network coding over time-varying network topologies 有权
标题翻译：用于通过随时间变化的网络拓扑进行网络编码的优先信息传递的方法和装置
公开(公告)号：US08861356B2
公开(公告)日：2014-10-14
申请号：US12040653
申请日：2008-02-29
申请人： Ulas C. Kozat , Christine Pépin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
发明人： Ulas C. Kozat , Christine Pépin , Haralabos Papadopoulos , Sean A. Ramprashad , Carl-Erik W. Sundberg
IPC分类号： H04L12/801 , H04L12/851 , H04L12/725 , H04L12/18 , H04W40/12 , H04L12/811 , H04L12/721 , H04L12/761 , H04L12/863 , H04L12/803 , H04L12/24
CPC分类号： H04W40/12 , H04L12/1881 , H04L41/12 , H04L41/5003 , H04L41/5054 , H04L45/14 , H04L45/16 , H04L45/30 , H04L45/38 , H04L47/10 , H04L47/125 , H04L47/15 , H04L47/24 , H04L47/2408 , H04L47/2441 , H04L47/38 , H04L47/6215
摘要： A method and apparatus is disclosed herein for information delivery with network coding over time-varying network topologies. In one embodiment, the method comprises decomposing a sequence of topology graphs that model a time-varying network topology into a plurality of virtual graphs, where each virtual graph of the plurality of virtual graphs corresponds to a distinct traffic class, and the virtual topology graph representing a partial topology of a time-varying network. The method also includes selecting a network code for each virtual graph in the plurality of the virtual graphs to meet requirements of the distinct traffic class corresponding to said each topology graph, where the network code is used to encode packets of the associated traffic class, and processing packets of each traffic class using the network code determined by its corresponding virtual topology and the requirements of said each traffic class, including using a virtual buffer system to implement the network code corresponding to each traffic class over the physical network topology. The method also includes using a scheduler to determine the transmission schedules for each output packet from the virtual buffer system of each traffic class where the scheduling decisions are based, at least in part, on the QoS requirements of each class.
摘要翻译：本文公开了一种用于通过随时间变化的网络拓扑进行网络编码的信息传递的方法和装置。在一个实施例中，该方法包括分解将时变网络拓扑建模成多个虚拟图的拓扑图序列，其中多个虚拟图中的每个虚拟图对应于不同的流量类别，虚拟拓扑图代表时变网络的部分拓扑。该方法还包括为多个虚拟图中的每个虚拟图选择网络代码以满足对应于所述每个拓扑图的不同流量类别的要求，其中网络代码用于对相关联的流量类别的分组进行编码;以及使用由其对应的虚拟拓扑确定的网络代码和所述每个流量类别的要求来处理每个流量类别的分组，包括使用虚拟缓冲器系统来实现通过物理网络拓扑对应于每个流量类别的网络代码。该方法还包括使用调度器至少部分地基于每个类的QoS要求来确定来自调度决策所基于的每个业务类别的虚拟缓冲器系统的每个输出分组的传输调度。

10. 发明申请

US20080089333A1 INFORMATION DELIVERY OVER TIME-VARYING NETWORK TOPOLOGIES 审中-公开
标题翻译：信息交付过时网络拓扑
公开(公告)号：US20080089333A1
公开(公告)日：2008-04-17
申请号：US11873248
申请日：2007-10-16
申请人： Ulas C. Kozat , Haralabos Papadopoulos , Christine Pepin , Sean A. Ramprashad , Carl-Erik W. Sundberg
发明人： Ulas C. Kozat , Haralabos Papadopoulos , Christine Pepin , Sean A. Ramprashad , Carl-Erik W. Sundberg
IPC分类号： H04L12/56
CPC分类号： H04L45/123 , H04L1/004 , H04L1/1607 , H04L41/0816 , H04L41/083 , H04L41/12 , H04L41/5022 , H04L45/02 , H04L45/28 , H04L2001/0093
摘要： A method and apparatus is disclosed herein for delivering information over time-varying networks. In one embodiment, the method comprises, for each of a plurality of time intervals, determining a virtual network topology for use over each time interval; selecting for the time interval based on the virtual network topology, a fixed network code for use during the time interval; and coding information to be transmitted over the time-varying network topology using the fixed network code with necessary virtual buffering at each node.
摘要翻译：本文公开了一种用于通过时变网络递送信息的方法和装置。在一个实施例中，对于多个时间间隔中的每一个，所述方法包括：确定虚拟网络拓扑以在每个时间间隔内使用; 基于虚拟网络拓扑选择时间间隔，在时间间隔期间使用固定网络代码; 以及使用固定网络代码通过时变网络拓扑传输的编码信息，并在每个节点具有必要的虚拟缓冲。

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