公开(公告)号：US08116201B2

公开(公告)日：2012-02-14

申请号：US11746848

申请日：2007-05-10

申请人： Saishankar Nandagopalan ,  Santosh Abraham ,  Sanjiv Nanda

发明人： Saishankar Nandagopalan ,  Santosh Abraham ,  Sanjiv Nanda

IPC分类号： H04Q7/00

CPC分类号： H04L47/283 ,  H04L45/12

摘要： An apparatus includes a processing system configured to establish a link with any one of a plurality of access points in a mesh network, each of the access points providing the apparatus with a different data path through the mesh network. The processing system is further configured to compute a metric for each of the data paths and select one of the access points to establish the link with based on the metrics. In a centralized mesh network, an apparatus includes a processing system configured to compute, for each of the access points, a metric for each of a plurality of data paths supportable by that access point, and establish interconnections between the access points based on the metrics.

摘要翻译： 一种装置包括：处理系统，被配置为与网状网络中的多个接入点中的任何一个建立链路，每个接入点通过网状网络向设备提供不同的数据路径。 处理系统还被配置为计算每个数据路径的度量，并且基于度量来选择接入点之一以建立链接。 在集中式网状网络中，设备包括：处理系统，被配置为针对每个接入点计算由该接入点支持的多个数据路径中的每一个的度量，以及基于度量来建立接入点之间的互连 。

公开(公告)号：US20110300851A1

公开(公告)日：2011-12-08

申请号：US12959206

申请日：2010-12-02

申请人： Dilip Krishnaswamy ,  Subbarao V. Yallapragada ,  Sanjiv Nanda ,  Soumya Das ,  Samir Salib Soliman ,  Peerapol Tinnakornsrisuphap ,  Vidya Narayanan

发明人： Dilip Krishnaswamy ,  Subbarao V. Yallapragada ,  Sanjiv Nanda ,  Soumya Das ,  Samir Salib Soliman ,  Peerapol Tinnakornsrisuphap ,  Vidya Narayanan

IPC分类号： H04W4/00 ,  H04W88/02

CPC分类号： A61B5/0482 ,  A61B5/048 ,  A61B5/6803 ,  G06F3/015 ,  G06F3/016 ,  G06F3/0487 ,  G08B7/06 ,  H04W4/02 ,  H04W28/08 ,  H04W88/02 ,  H04W88/06

摘要： Systems and methods for distributed computing between communication devices. A femto node is treated as a trusted extension of a user equipment and performs processing tasks on behalf of the user equipment. The femto node is also treated as a trusted extension of network servers and performs services on behalf of the network servers. Tasks are thus distributed between the network servers, the femto node and one or more user equipments. The tasks include processing data, filtering incoming messages, and caching network service information.

摘要翻译： 通信设备间分布式计算的系统和方法。 毫微微节点被视为用户设备的信任扩展，并代表用户设备执行处理任务。 毫微微节点也被视为网络服务器的受信任扩展，并代表网络服务器执行服务。 因此，任务分布在网络服务器，毫微微节点和一个或多个用户设备之间。 这些任务包括处理数据，过滤传入的消息和缓存网络服务信息。

公开(公告)号：US08019351B2

公开(公告)日：2011-09-13

申请号：US12401591

申请日：2009-03-10

申请人： Sanjiv Nanda ,  Ranganathan Krishnan

发明人： Sanjiv Nanda ,  Ranganathan Krishnan

IPC分类号： H04W72/00

CPC分类号： H04W72/1226 ,  H04W52/367 ,  H04W52/46 ,  H04W84/18

摘要： Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a module or communications device is configured to select first and second terminal pairs, the first terminal pair having a first transmitting terminal and a first receiving terminal, and the second terminal pair having a second transmitting terminal and a second receiving terminal, schedule a first signal transmission from the first transmitting terminal to an intermediate terminal, the first signal transmission being destined for the first receiving terminal, schedule, simultaneously with the first signal transmission, a second signal transmission from the second transmitting terminal to the second receiving terminal, and schedule a power level for each of the first and second signal transmissions that satisfies a target quality parameter for each of the intermediate terminal and the second receiving terminal.

摘要翻译： 公开了与无线通信有关的系统和技术。 该系统和技术涉及无线通信，其中模块或通信设备被配置为选择第一和第二终端对，第一终端对具有第一发送终端和第一接收终端，并且第二终端对具有第二发送终端和 第二接收终端，调度从第一发送终端到中间终端的第一信号传输，第一信号传输指定给第一接收终端，与第一信号传输同时调度从第二发射终端到第二信号传输的第二信号传输 第二接收终端，并为每个中间终端和第二接收终端分别满足目标质量参数的第一和第二信号传输中的每一个调度功率电平。

公开(公告)号：US20110194434A1

公开(公告)日：2011-08-11

申请号：US13008755

申请日：2011-01-18

申请人： Arnaud Meylan ,  Santosh Paul Abraham ,  Sanjiv Nanda

发明人： Arnaud Meylan ,  Santosh Paul Abraham ,  Sanjiv Nanda

IPC分类号： H04B17/00 ,  H04L27/28 ,  H04B7/02

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，并在特征向量的本征模式上传输转向数据和转向MIMO导频。

公开(公告)号：US20110154144A1

公开(公告)日：2011-06-23

申请号：US12976641

申请日：2010-12-22

申请人： Sanjiv Nanda

发明人： Sanjiv Nanda

IPC分类号： H04L1/18

CPC分类号： H04L1/1614 ,  H04B7/02 ,  H04B7/0417 ,  H04L1/1621 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1835 ,  H04L1/1848 ,  H04L1/1854 ,  H04L1/1887

摘要： Embodiments disclosed herein address the need in the art for enhanced block acknowledgement. In one embodiment, a receiver indicates a decoding delay for a maximum size aggregate frame in Block Ack negotiation, which may be used by a transmitter to determine to which Block Ack Request a Block Acknowledgement is responsive. In another embodiment, a Transmission Sequence Number (TSN) may be included in a Block Ack Request. The receiver includes the TSN in the corresponding Block Ack response. This allows the transmitter to determine which frames are “in transit.” The TSN may be used to identify blocks. In another embodiment, a TSN may be associated with one or more transmitted frames. While, the TSN is not transmitted with the Block Ack Request, the transmitter may determine which TSN corresponds with a Block Ack response in accordance with acknowledgements contained therein. Combinations of these techniques may be deployed. Various other aspects are also presented.

摘要翻译： 本文公开的实施例解决了本领域对增强块确认的需要。 在一个实施例中，接收器指示块确认协商中的最大尺寸聚合帧的解码延迟，其可由发射机使用以确定哪个块确认请求响应于块确认。 在另一个实施例中，传输序列号（TSN）可以包括在块确认请求中。 接收机包括相应的Block Ack响应中的TSN。 这允许发射机确定哪些帧“在传输中”。可以使用TSN来识别块。 在另一个实施例中，TSN可以与一个或多个传输的帧相关联。 而TSN不是通过块确认请求发送的，所以发射机可以根据其中包含的确认来确定哪个TSN与块确认响应相对应。 可以部署这些技术的组合。 还提出了各种其他方面。

公开(公告)号：US20100315979A1

公开(公告)日：2010-12-16

申请号：US12766519

申请日：2010-04-23

申请人： Shravan K. Surineni ,  Arnaud Meylan ,  Sanjiv Nanda

发明人： Shravan K. Surineni ,  Arnaud Meylan ,  Sanjiv Nanda

IPC分类号： H04B7/00 ,  H04L12/66

CPC分类号： H04W52/0225 ,  H04W74/04 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： Techniques to efficiently schedule and serve stations in a wireless network are described. An access point may aggregate stations with flows carrying traffic having similar characteristics, e.g., VoIP flows. The access point may schedule these stations together in an overall service period. The access point may serve each station in a respective service period within the overall service period. The access point may send a multi poll frame at the start of the overall service period to indicate the start time and/or service period for each station. Each station may decide to power down until its start time. The service periods for the stations may overlap one another. The service period for each station may cover an initial transmission as well as additional transmission and/or retransmission. If additional transmission and/or retransmission are not needed for a given station, then the next station may be served right away.

摘要翻译： 描述了在无线网络中有效地调度和服务站的技术。 接入点可以聚合具有携带具有类似特征的流量的流的站，例如VoIP流。 接入点可以在整个服务周期内将这些站安排在一起。 接入点可以在整个服务周期内的相应服务周期内为每个站服务。 接入点可以在整个服务周期开始时发送多轮询帧，以指示每个车站的起始时间和/或服务周期。 每个工作站可能决定关闭电源直到其开始时间。 站点的服务周期可能彼此重叠。 每个站的服务周期可以覆盖初始传输以及额外的传输和/或重传。 如果对于给定的站不需要额外的传输和/或重传，则可以立即提供下一个站。

公开(公告)号：US20100285737A1

公开(公告)日：2010-11-11

申请号：US12722714

申请日：2010-03-12

申请人： Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac ,  Sanjiv Nanda

发明人： Dhananjay Ashok Gore ,  Gwendolyn Denise Barriac ,  Sanjiv Nanda

IPC分类号： H04B7/14

CPC分类号： H04B7/15578

摘要： A method for controlling gain in a wireless repeater implementing echo cancellation determines a signal-to-interference-noise-ratio (SINR) of the input and output signals of the repeater and adjusts the gain of the repeater to optimize an achievable data rate and a coverage area of the repeater. The repeater gain may be decreased to increase the data rate and increase the achievable SINR of the output signal while the coverage area is reduced. Alternately, the repeater gain may be increased to decrease the data rate and decrease the achievable SINR of the output signal while the coverage area is increased.

摘要翻译： 用于控制实现回波消除的无线中继器中的增益的方法确定中继器的输入和输出信号的信噪比（SINR），并且调整中继器的增益以优化可实现的数据速率和 中继器的覆盖区域。 当覆盖区域减小时，可以减小中继器增益以增加数据速率并增加输出信号的可实现SINR。 或者，当覆盖区域增加时，可以增加中继器增益以降低数据速率并降低输出信号的可实现SINR。

公开(公告)号：US20100015921A1

公开(公告)日：2010-01-21

申请号：US12502084

申请日：2009-07-13

申请人： Mehmet Yavuz ,  Sanjiv Nanda ,  Vansh Pal Singh Makh

发明人： Mehmet Yavuz ,  Sanjiv Nanda ,  Vansh Pal Singh Makh

IPC分类号： H04B15/00

CPC分类号： H04W72/085 ,  H04W72/0406 ,  H04W84/045

摘要： Systems and methods for avoiding interference signals sent by a femto node in a wireless communication system are described herein. In one embodiment, the method comprises establishing a communication link between a first transceiver and a base station. The base station is configured to provide wireless communication coverage within a first area. The method further comprises detecting by the first transceiver a femto signal generated by the femto node. The femto node is configured to provide wireless communication coverage within a second area to at least a second transceiver. The second transceiver is different from the first transceiver. The second area is smaller than the first area. The method further comprises identifying information indicative of a signal strength of the femto signal. The method further comprises transmitting a first message in response to detecting the femto signal, the first message comprising information identifying the femto node and the information indicative of the signal strength of the femto signal to the base station over a first frequency carrier. The method further comprises receiving a second message from the base station. The second message comprises information indicative of an instruction to communicate over a second carrier frequency. The method further comprises communicating with the base station over a second frequency carrier in response to the second message.

摘要翻译： 本文描述了用于避免毫微微节点在无线通信系统中发送的干扰信号的系统和方法。 在一个实施例中，该方法包括在第一收发器和基站之间建立通信链路。 基站被配置为在第一区域内提供无线通信覆盖。 该方法还包括由第一收发机检测由毫微微节点产生的毫微微信号。 毫微微节点被配置为在至少第二收发器的第二区域内提供无线通信覆盖。 第二收发器与第一收发器不同。 第二个区域小于第一个区域。 该方法还包括识别指示毫微微信号的信号强度的信息。 所述方法还包括响应于检测到所述毫微微信号而发送第一消息，所述第一消息包括识别所述毫微微节点的信息和指示所述毫微微信号的信号在所述基站上的信号在第一频率载波上的信息。 该方法还包括从基站接收第二消息。 第二消息包括指示通过第二载波频率进行通信的指示的信息。 该方法还包括响应于第二消息通过第二频率载波与基站进行通信。

公开(公告)号：US20090323646A1

公开(公告)日：2009-12-31

申请号：US12112718

申请日：2008-04-30

申请人： John W. Ketchum ,  Jay Rodney Walton ,  Sanjiv Nanda

发明人： John W. Ketchum ,  Jay Rodney Walton ,  Sanjiv Nanda

IPC分类号： H04W4/00

CPC分类号： H04W28/065 ,  H04L1/1635 ,  H04L25/03343 ,  H04L29/06 ,  H04L47/2441 ,  H04L69/16 ,  H04L69/161 ,  H04L69/22 ,  H04L69/32 ,  H04W80/02 ,  H04W84/12

摘要： Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. Data associated with at least one MAC ID can be aggregated into a single byte stream. The single byte stream can be formatted into MAC PDUs and then muxed. The muxed MAC PDUs can then be transmitted on a single MAC frame. Muxing of the MAC PDUs can be based on the priority of the MAC PDUs or other criteria. A MAC header can comprise information about the muxed PDUs, such as a pointer, that identifies the location of the MAC PDUs within the MAC frame. A MAC frame can contain partial MAC PDUs. The transmitted muxed MAC PDUs can be retransmitted, and an acknowledgment or feedback scheme may be used to help manage the transmission of the protocol data units.

摘要翻译： 公开了解决用于高吞吐量系统的有效使用的MAC处理的实施例。 与至少一个MAC ID相关联的数据可以聚合成单个字节流。 单字节流可以格式化为MAC PDU，然后进行多路复用。 然后，多路复用MAC PDU可以在单个MAC帧上传输。 MAC PDU的复用可以基于MAC PDU的优先级或其他标准。 MAC报头可以包括关于多路复用PDU（例如指针）的信息，其标识MAC帧内的MAC PDU的位置。 MAC帧可以包含部分MAC PDU。 传输的复用MAC PDU可以被重传，并且可以使用确认或反馈方案来帮助管理协议数据单元的传输。

公开(公告)号：US20090203322A1

公开(公告)日：2009-08-13

申请号：US12027794

申请日：2008-02-07

申请人： Gavin Bernard Horn ,  Ashwin Sampath ,  Sanjiv Nanda

发明人： Gavin Bernard Horn ,  Ashwin Sampath ,  Sanjiv Nanda

IPC分类号： H04B17/00

CPC分类号： H04W72/082 ,  H04W72/0406 ,  H04W72/12 ,  H04W74/08

摘要： Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources.

摘要翻译： 干扰管理可能涉及由经受干扰的无线节点和接收干扰管理消息的潜在干扰源的适当响应的干扰管理消息的传输。 在检测到干扰信号时，无线节点可以确定信号是来自同步干扰源还是异步干扰源。 基于该确定，无线节点可以使用不同类型的信号来管理不同类型的干扰。 在一些方面，异步干扰管理可以包括响应于干扰信号在频率上和/或时间上进行退出。 异步干扰管理可能涉及发送回退信标以清除给定载波的潜在干扰源。 这里，可以计量无线节点的信标传输，以便公平地共享通信资源。