专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 发明授权

US08451951B2 Channel classification and rate adaptation for SU-MIMO systems 有权
标题翻译： SU-MIMO系统的信道分类和速率适配
公开(公告)号：US08451951B2
公开(公告)日：2013-05-28
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： H04L27/06 , H04B1/00
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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20100041408A1 METHOD FOR VARYING TRANSMIT POWER PATTERNS IN A MULTI-CELL ENVIRONMENT 有权
标题翻译：在多细胞环境中改变发射功率模式的方法
公开(公告)号：US20100041408A1
公开(公告)日：2010-02-18
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： H04W40/00 , H04B7/00 , H04W4/00 , H04M1/00
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。

9. 发明申请

US20100041407A1 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：组合用户和协调模式的方法在多个环境中变化的天线和基站协调模式在多细胞环境中
公开(公告)号：US20100041407A1
公开(公告)日：2010-02-18
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。

10. 发明申请

US20090296842A1 SOFT OUTPUT M-ALGORITHM RECEIVER STRUCTURES WITH GENERALIZED SURVIVOR SELECTION CRITERIA FOR MIMO SYSTEMS 有权
标题翻译：用于MIMO系统的具有通用选择标准的软输出M算法接收机结构
公开(公告)号：US20090296842A1
公开(公告)日：2009-12-03
申请号：US12476066
申请日：2009-06-01
申请人： Haralabos Papadopoulos , Carl-Erik W. Sundberg
发明人： Haralabos Papadopoulos , Carl-Erik W. Sundberg
IPC分类号： H04K1/10 , H04J11/00
CPC分类号： H04L25/03216 , H04L1/0055 , H04L1/0618 , H04L25/0204 , H04L25/0246 , H04L25/03318 , H04L2025/03414 , H04L2025/0342
摘要： A method and apparatus is disclosed herein for a modified soft output M-algorithm. In one embodiment, the soft output M-algorithm is employed by a receiver in a wireless communication system to receive information-bearing signals wirelessly transmitted from the transmitter wirelessly transmitted, the receiver comprising: an inner decoder structure having a multiple-in multiple-out (MIMO) joint demapper to perform joint inner demapping over each tone, the joint demapper being operable to apply a soft-output M-type algorithm to identify survivor candidates at each depth in a detection tree being searched for each tone, including surviving full-length candidates, based on at least one metric and at least one other criterion, where a number of best alternatives from every level of the tree are expanded along with one or more alternatives selected meeting the at least one other criterion and where soft-output related information is collected and stored for each bit, and an outer decoder operable with the inner decoder to perform iterative decoding.
摘要翻译：本文公开了一种用于修改的软输出M算法的方法和装置。在一个实施例中，软输出M算法被无线通信系统中的接收机采用以接收从无线发送的发射机无线发射的信息承载信号，所述接收机包括：内部解码器结构，其具有多进多出（MIMO）联合解映射器，以在每个音调上执行联合内部解映射，所述联合解映射器可操作以应用软输出M型算法来识别正在搜索每个音调的检测树中的每个深度处的幸存候选者，基于至少一个度量和至少一个其他标准，其中来自所述树的每个级别的多个最佳替代物与满足所述至少一个其他标准的一种或多种选择一起扩展，并且其中软输出相关针对每个位收集和存储信息，以及可以与内部解码器一起执行迭代解码的外部解码器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式