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1. 发明申请

US20080205340A1 NEIGHBOR DISCOVERY IN A WIRELESS SYSTEM 审中-公开
标题翻译：邻里发现无线系统
公开(公告)号：US20080205340A1
公开(公告)日：2008-08-28
申请号：US11680455
申请日：2007-02-28
申请人： Arnaud Meylan , Santosh Abraham , Shravan K. Surineni , Sanjiv Nanda
发明人： Arnaud Meylan , Santosh Abraham , Shravan K. Surineni , Sanjiv Nanda
IPC分类号： H04Q7/00
CPC分类号： H04W8/005 , H04W48/12 , H04W48/18 , H04W52/0216 , H04W92/20 , Y02D70/142 , Y02D70/146 , Y02D70/22
摘要： Beacons may be grouped to facilitate neighbor discovery in a wireless network. For example, neighboring access devices such as IEEE 802.11 access points may cooperate to transmit beacons in a group. In this way, a wireless device seeking to discover the neighboring access devices may scan for the beacons for a shorter period of time. An indication may be provided to enable a wireless device to more efficiently scan the beacons. For example, the indication may indicate the channel the wireless device should scan to receive the next beacon that is to be transmitted. In addition, the indication may include information relating to the transmission time of the next beacon.
摘要翻译：信标可以被分组以便于无线网络中的邻居发现。例如，诸如IEEE 802.11接入点之类的相邻接入设备可以协作来传送组中的信标。以这种方式，寻求发现相邻接入设备的无线设备可以在更短的时间段内扫描信标。可以提供指示以使得无线设备能够更有效地扫描信标。例如，该指示可以指示无线设备应扫描的频道以接收将被发送的下一个信标。此外，该指示可以包括与下一个信标的发送时间有关的信息。

2. 发明申请

US20060256761A1 Rate selection for eigensteering in a MIMO communication system 有权
公开(公告)号：US20060256761A1
公开(公告)日：2006-11-16
申请号：US11128843
申请日：2005-05-12
申请人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
发明人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
IPC分类号： H04Q7/24
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0632 , H04B7/0643 , H04L1/0002 , H04L1/0015 , H04L1/0025 , H04L1/0026 , H04L1/06 , H04L1/1671 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for selecting rates for data transmission on eigenmodes of a MIMO channel are described. An access point transmits an unsteered MIMO pilot via the downlink. A user terminal estimates the downlink channel quality based on the downlink unsteered MIMO pilot and transmits an unsteered MIMO pilot and feedback information via the uplink. The feedback information is indicative of the downlink channel quality. The access point estimates the uplink channel quality and obtains a channel response matrix based on the uplink unsteered MIMO pilot, decomposes the channel response matrix to obtain eigenvectors and channel gains for the eigenmodes of the downlink, and selects rates for the eigenmodes based on the estimated uplink channel quality, the channel gains for the eigenmodes, and the feedback information. The access point processes data based on the selected rates and transmits steered data and a steered MIMO pilot on the eigenmodes with the eigenvectors.

3. 发明授权

US07872981B2 Rate selection for eigensteering in a MIMO communication system 有权
标题翻译： MIMO通信系统中本征导向的速率选择
公开(公告)号：US07872981B2
公开(公告)日：2011-01-18
申请号：US11128843
申请日：2005-05-12
申请人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
发明人： Arnaud Meylan , Santosh Abraham , Sanjiv Nanda
IPC分类号： G01R31/08 , H04W4/00 , H03B1/02 , H04B17/00
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/0632 , H04B7/0643 , H04L1/0002 , H04L1/0015 , H04L1/0025 , H04L1/0026 , H04L1/06 , H04L1/1671 , H04L25/0204 , H04L25/0228 , H04L25/0248 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for selecting rates for data transmission on eigenmodes of a MIMO channel are described. An access point transmits an unsteered MIMO pilot via the downlink. A user terminal estimates the downlink channel quality based on the downlink unsteered MIMO pilot and transmits an unsteered MIMO pilot and feedback information via the uplink. The feedback information is indicative of the downlink channel quality. The access point estimates the uplink channel quality and obtains a channel response matrix based on the uplink unsteered MIMO pilot, decomposes the channel response matrix to obtain eigenvectors and channel gains for the eigenmodes of the downlink, and selects rates for the eigenmodes based on the estimated uplink channel quality, the channel gains for the eigenmodes, and the feedback information. The access point processes data based on the selected rates and transmits steered data and a steered MIMO pilot on the eigenmodes with the eigenvectors.
摘要翻译：描述了用于选择MIMO信道的本征模式上的数据传输速率的技术。接入点经由下行链路发送非导向MIMO导频。用户终端基于下行链路非导向MIMO导频来估计下行链路信道质量，并通过上行链路发送非导向MIMO导频和反馈信息。反馈信息表示下行链路信道质量。接入点估计上行链路信道质量，并且基于上行链路非导向MIMO导频获得信道响应矩阵，分解信道响应矩阵以获得用于下行链路本征模式的特征向量和信道增益，并且基于所估计的本征模式选择本征模式的速率上行链路信道质量，本征模式的信道增益和反馈信息。接入点基于所选择的速率处理数据，并在本征矢量的本征模式上传输转向数据和转向MIMO导频。

4. 发明申请

US20050270975A1 Method and apparatus for scheduling in a wireless network 有权
标题翻译：用于在无线网络中进行调度的方法和装置
公开(公告)号：US20050270975A1
公开(公告)日：2005-12-08
申请号：US11086085
申请日：2005-03-21
申请人： Arnaud Meylan , Santosh Abraham
发明人： Arnaud Meylan , Santosh Abraham
IPC分类号： H04L12/28 , H04L12/56 , H04W28/04 , H04W72/12 , H04W80/00 , H04L1/00
CPC分类号： H04W72/1252 , H04B7/0447 , H04L1/0015 , H04L1/1854 , H04L25/0226 , H04L47/14 , H04L47/24 , H04L47/26 , H04W80/04
摘要： Techniques for scheduling flows and links for transmission are described. Each link is an oriented source-destination pair and carries one or more flows. Each flow may be associated with throughput, delay, feedback (e.g., acknowledgments (ACKs)) and/or other requirements. A serving interval is determined for each flow based on the requirements for the flow. A serving interval is determined for each link based on the serving intervals for all of the flows sent on the link. Each link is scheduled for transmission at least once in each serving interval, if system resources are available, to ensure that the requirements for all flows sent on the link are met. The links are also scheduled in a manner to facilitate closed loop rate control. The links are further scheduled such that ACKs for one or more layers in a protocol stack are sent at sufficiently fast rates.
摘要翻译：描述用于调度流和用于传输的链路的技术。每个链路是一个定向的源 - 目的地对，并携带一个或多个流。每个流程可以与吞吐量，延迟，反馈（例如确认（ACK））和/或其他要求相关联。根据流量的要求为每个流量确定服务间隔。基于在链路上发送的所有流的服务间隔，为每个链路确定服务间隔。如果系统资源可用，则每个链路被调度至少在每个服务间隔中传输一次，以确保满足在链路上发送的所有流的要求。这些链路的安排也是为了方便闭环速率控制。进一步调度链路，使得以足够快的速率发送协议栈中的一个或多个层的ACK。

5. 发明授权

US08401018B2 Method and apparatus for scheduling in a wireless network 有权
标题翻译：用于在无线网络中进行调度的方法和装置
公开(公告)号：US08401018B2
公开(公告)日：2013-03-19
申请号：US11086085
申请日：2005-03-21
申请人： Arnaud Meylan , Santosh Abraham
发明人： Arnaud Meylan , Santosh Abraham
IPC分类号： H04W72/00
CPC分类号： H04W72/1252 , H04B7/0447 , H04L1/0015 , H04L1/1854 , H04L25/0226 , H04L47/14 , H04L47/24 , H04L47/26 , H04W80/04
摘要： Techniques for scheduling flows and links for transmission are described. Each link is an oriented source-destination pair and carries one or more flows. Each flow may be associated with throughput, delay, feedback (e.g., acknowledgments (ACKs)) and/or other requirements. A serving interval is determined for each flow based on the requirements for the flow. A serving interval is determined for each link based on the serving intervals for all of the flows sent on the link. Each link is scheduled for transmission at least once in each serving interval, if system resources are available, to ensure that the requirements for all flows sent on the link are met. The links are also scheduled in a manner to facilitate closed loop rate control. The links are further scheduled such that ACKs for one or more layers in a protocol stack are sent at sufficiently fast rates.
摘要翻译：描述用于调度流和用于传输的链路的技术。每个链路是一个定向的源 - 目的地对，并携带一个或多个流。每个流程可以与吞吐量，延迟，反馈（例如确认（ACK））和/或其他要求相关联。根据流量的要求为每个流量确定服务间隔。基于在链路上发送的所有流的服务间隔，为每个链路确定服务间隔。如果系统资源可用，则每个链路被调度至少在每个服务间隔中传输一次，以确保满足在链路上发送的所有流的要求。这些链路的安排也是为了方便闭环速率控制。进一步调度链路，使得以足够快的速率发送协议栈中的一个或多个层的ACK。

6. 发明授权

US09521584B2 Method and apparatus for managing data flow through a mesh network 有权
标题翻译：用于通过网状网络管理数据流的方法和装置
公开(公告)号：US09521584B2
公开(公告)日：2016-12-13
申请号：US11549849
申请日：2006-10-16
申请人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Xiaofei Wang
发明人： Sanjiv Nanda , Saishankar Nandagopalan , Santosh Abraham , Xiaofei Wang
IPC分类号： G06F15/16 , H04W28/12 , H04W74/06 , H04W84/18
CPC分类号： H04W28/12 , H04W74/06 , H04W84/18 , Y02D70/142 , Y02D70/22
摘要： Traffic streams through mesh points in a mesh network are managed. Data arriving at the mesh point are aggregated in packet queues. The packet queues segregate arriving data by the data's Quality of Service (QoS) requirement. An appropriate communication channel is selected. The communication channel is accessed through a contention access schema. An M-Request-To-Send (MRTS) message is sent to potential receiving mesh points with receiving mesh points responding with an M-Clear-to-Send (MCTS) message. Data from the packet queues is transmitted to the next mesh point. A mesh point power save mode allows battery operated mesh points to sleep preserving power.
摘要翻译：通过网状网络中的网点进行流量管理。到达网格点的数据被聚合在数据包队列中。数据包队列根据数据的服务质量（QoS）要求隔离到达的数据。选择适当的通信通道。通信通道是通过争用访问模式访问的。将M-Request-To-Send（MRTS）消息发送到具有以M-Clear-to-Send（MCTS）消息响应的接收网点的潜在接收网点。来自分组队列的数据被发送到下一个网格点。网点省电模式允许电池操作的网点保持功率睡眠。

7. 发明授权

US08004992B2 Adding hybrid ARQ to WLAN protocols with MAC based feedback 有权
标题翻译：将混合ARQ添加到基于MAC的反馈的WLAN协议
公开(公告)号：US08004992B2
公开(公告)日：2011-08-23
申请号：US12041525
申请日：2008-03-03
申请人： Santosh Abraham , Saishankar Nandagopalan , Sanjiv Nanda , Ashwin Sampath
发明人： Santosh Abraham , Saishankar Nandagopalan , Sanjiv Nanda , Ashwin Sampath
IPC分类号： H04L1/00 , H04L12/26 , H04W4/00 , H04L12/28 , H04L12/56
CPC分类号： H04L1/1812
摘要： A wireless node having a MAC layer configured to coordinate access to a shared wireless medium using a MAC protocol, a PHY layer configured to provide an interface to the shared wireless medium, and a HARQ layer between the MAC and PHY layers, the HARQ layer being configured to support HARQ using the MAC protocol.
摘要翻译：具有MAC层的无线节点被配置为使用MAC协议来协调对共享无线介质的访问，被配置为向所述共享无线介质提供接口的PHY层以及所述MAC层与所述PHY层之间的HARQ层，所述HARQ层为配置为使用MAC协议来支持HARQ。

8. 发明申请

US20070127380A1 METHOD AND APPARATUS FOR FLOW CONTROL OF DATA IN A MESH NETWORK 有权
标题翻译：网络流量控制数据的方法和装置
公开(公告)号：US20070127380A1
公开(公告)日：2007-06-07
申请号：US11549823
申请日：2006-10-16
申请人： Santosh Abraham , Saishankar Nandagopalan , Sanjiv Nanda
发明人： Santosh Abraham , Saishankar Nandagopalan , Sanjiv Nanda
IPC分类号： H04L12/26 , H04J1/16
CPC分类号： H04L47/25 , H04L47/10 , H04L47/11 , H04L47/14 , H04L47/15 , H04L47/17 , H04L47/263 , H04L47/27 , H04L47/286 , H04L47/70 , H04L47/783 , H04L47/822 , H04L47/824 , H04W24/00 , H04W28/10 , H04W28/22 , H04W40/22 , H04W74/08 , H04W84/18
摘要： Flows admitted to a mesh node may be controlled through contention access parameters. The admitting node may determine a desired transmission opportunity duration, and a transmission opportunity frequency. Furthermore, the node may achieve the flow rate and delay bound requirements of the admitted flow based at least in part upon the desired transmission opportunity duration, and the transmission opportunity frequency. The data rate and the access frequency of the admitted node may be monitored at the physical access level. The flow rate requirement may be accomplished based at least in part upon an adjustment to the transmission opportunity duration. The delay bound requirement may be accomplished at least in part upon manipulation of the contention access parameters. The transmission opportunity duration and the access parameters may be determined by the upstream admitting nodes, which may reduce congestion near mesh portals, and accomplish increased data transfer.
摘要翻译：可以通过争用访问参数来控制进入网状节点的流。接纳节点可以确定期望的传输机会持续时间和传输机会频率。此外，节点可以至少部分地基于期望的传输机会持续时间和传输机会频率来实现允许的流的流速和延迟约束要求。可以在物理访问级别监视允许的节点的数据速率和访问频率。流量要求可以至少部分地基于对传输机会持续时间的调整来实现。延迟限制要求可以至少部分地基于争用访问参数的操纵来实现。传输机会持续时间和访问参数可以由上游准入节点确定，这可以减少网格门户附近的拥塞，并且实现增加的数据传输。

9. 发明授权

US08355372B2 Transmission mode and rate selection for a wireless communication system 有权
标题翻译：无线通信系统的传输模式和速率选择
公开(公告)号：US08355372B2
公开(公告)日：2013-01-15
申请号：US12463078
申请日：2009-05-08
申请人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
发明人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04W4/00
CPC分类号： H04L25/0202 , H04B7/0421 , H04L1/0002 , H04L1/0026
摘要： To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
摘要翻译：为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式，站A获得用于空间处理的信道信息，并确定该信息的年龄。站A基于信道信息的年龄和可能的其他信息（例如，MIMO信道的衰落特性）来选择多种传输模式之一。为了选择用于数据传输的速率，站A获得指示MIMO信道的接收信号质量的信道状态信息（CSI），例如接收到的SNR或初始速率。站A确定CSI的年龄，并且基于CSI，CSI的年龄，所选择的传输模式以及可能的其他信息来选择一个或多个最终速率。站A根据选择的传输模式和最终速率处理数据，并将处理的数据发送到站B.

10. 发明申请

US20090290655A1 TRANSMISSION MODE AND RATE SELECTION FOR A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统的传输模式和速率选择
公开(公告)号：US20090290655A1
公开(公告)日：2009-11-26
申请号：US12463078
申请日：2009-05-08
申请人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
发明人： Santosh Abraham , Arnaud Meylan , Jay Rodney Walton
IPC分类号： H04B7/02
CPC分类号： H04L25/0202 , H04B7/0421 , H04L1/0002 , H04L1/0026
摘要： To select a transmission mode to use for a data transmission via a MIMO channel from station A to station B, station A obtains channel information used for spatial processing and determines the age of this information. Station A selects one of multiple transmission modes based on the age of the channel information and possibly other information (e.g., the fading characteristic of the MIMO channel). To select rate(s) to use for the data transmission, station A obtains channel state information (CSI) indicative of the received signal quality for the MIMO channel, e.g., received SNRs or “initial” rates. Station A determines the age of the CSI and selects one or more “final” rates based on the CSI, the age of the CSI, the selected transmission mode, and possibly other information. Station A processes data in accordance with the selected transmission mode and final rate(s) and transmits the processed data to station B.
摘要翻译：为了选择通过从站A到站B的MIMO信道进行数据传输的传输模式，站A获得用于空间处理的信道信息，并确定该信息的年龄。站A基于信道信息的年龄和可能的其他信息（例如，MIMO信道的衰落特性）来选择多种传输模式之一。为了选择用于数据传输的速率，站A获得指示MIMO信道的接收信号质量的信道状态信息（CSI），例如接收到的SNR或“初始”速率。站A确定CSI的年龄，并且基于CSI，CSI的年龄，所选择的传输模式以及可能的其他信息来选择一个或多个“最终”速率。站A根据选择的传输模式和最终速率处理数据，并将处理的数据发送到站B.

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