公开(公告)号：US08903440B2

公开(公告)日：2014-12-02

申请号：US12882945

申请日：2010-09-15

申请人： Sanjiv Nanda ,  J. Rodney Walton

发明人： Sanjiv Nanda ,  J. Rodney Walton

IPC分类号： H04B7/00 ,  H04W72/12 ,  H04W84/18

CPC分类号： H04W72/1278 ,  H04W72/1231 ,  H04W84/18

摘要： An ad hoc network with distributed hierarchical scheduling is disclosed. In one aspect, stations in a network mesh detect interfering neighbor stations and form interference lists. Stations transmit their interference lists. Scheduling stations schedule allocations for child stations in response to interference lists, received remote allocations, or a combination thereof. Coordination messages are transmitted including frame structure, allocations, and interference lists, among others. In another aspect, an ad hoc mesh network may be organized into a tree topology. In an example wireless backhaul network, this matches traffic flow. Distributed, hierarchical scheduling is provided where parents schedule communication with children while respecting already scheduled transmissions to/from interferers and to/from interferers of their respective children. Procedures to construct interference constraints for distributed, hierarchical scheduling are described, resulting in efficient scheduling and reuse in an ad hoc wireless network, without centralized scheduling. Various other aspects are also disclosed.

摘要翻译： 公开了一种具有分布式分层调度的自组织网络。 在一个方面，网络网络中的站检测干扰相邻站并形成干扰列表。 车站发送干扰列表。 调度站响应于干扰列表，接收的远程分配或其组合来调度子站的分配。 发送协调消息，包括帧结构，分配和干扰列表等。 在另一方面，可以将自组织网状网络组织成树形拓扑。 在无线回程网络的示例中，这匹配了流量。 提供了分布式的分层调度，其中父母调度与孩子的通信，同时尊重已经调度的传输到/来自干扰源和/或来自其相应子项的干扰。 描述了为分布式分层调度构建干扰约束的过程，从而在ad hoc无线网络中进行有效的调度和重用，而无需集中调度。 还公开了各种其它方面。

公开(公告)号：US08867456B2

公开(公告)日：2014-10-21

申请号：US12276932

申请日：2008-11-24

申请人： Mehmet Yavuz ,  Peter J. Black ,  Sanjiv Nanda

发明人： Mehmet Yavuz ,  Peter J. Black ,  Sanjiv Nanda

IPC分类号： H04W4/00 ,  H04J3/06 ,  H04W52/20 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W56/00 ,  H04W28/04 ,  H04W52/44 ,  H04W52/38

CPC分类号： H04W72/082 ,  H04L1/1825 ,  H04L5/0092 ,  H04W28/04 ,  H04W52/143 ,  H04W52/20 ,  H04W52/244 ,  H04W52/32 ,  H04W52/322 ,  H04W52/325 ,  H04W52/38 ,  H04W52/44 ,  H04W56/001 ,  H04W56/0015 ,  H04W56/0025 ,  H04W74/04

摘要： Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal.

摘要翻译： 在无线通信期间发生的干扰可以通过混合时间重用来管理。 一种修改通信介质的装置的方法确定相应的一个或多个非计划接入点的一个或多个时间重用模式。 选择较少干扰一个或多个时间重用模式的第二次重用模式。 信号根据第二次重用模式从第二计划外接入点发送到相关接入终端。

公开(公告)号：US08792441B2

公开(公告)日：2014-07-29

申请号：US13283510

申请日：2011-10-27

申请人： Jay Rodney Walton ,  Sanjiv Nanda

发明人： Jay Rodney Walton ,  Sanjiv Nanda

IPC分类号： H04W72/04 ,  H04W74/04 ,  H04W74/08 ,  H04W72/12 ,  H04W84/18 ,  H04W16/28

CPC分类号： H04W74/0808 ,  H04W16/28 ,  H04W72/1231 ,  H04W84/18

摘要： Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements.

摘要翻译： 网络接入点（AP）点，包括网关和路由器，部署在一个地理区域。 AP监控其他运营商的通信信道，并进行相应的传输。 当其他载波被感测到时，如果网状网络的效率将提高，则选择性地共同发射AP。 AP基于观察到的载波干扰比选择传输速率。 AP使用定向天线来增加载波干扰比和频谱效率。 AP发射时间表可以根据观测到的载波干扰测量进行适应性调整。

公开(公告)号：US08761060B2

公开(公告)日：2014-06-24

申请号：US13024893

申请日：2011-02-10

申请人： Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Leonard Henry Grokop ,  Vinay Chande ,  Sanjiv Nanda ,  Farhad Meshkati ,  Sumeeth Nagaraja

发明人： Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Leonard Henry Grokop ,  Vinay Chande ,  Sanjiv Nanda ,  Farhad Meshkati ,  Sumeeth Nagaraja

IPC分类号： H04B7/00 ,  H04W52/32

CPC分类号： H04W52/325 ,  H04W28/18 ,  H04W52/143 ,  H04W52/16 ,  H04W52/242 ,  H04W52/243 ,  H04W52/247 ,  H04W52/281 ,  H04W52/50 ,  H04W72/082 ,  H04W84/045

摘要： Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.

摘要翻译： 基于接入点接收的信息来控制接入点的发射功率。 例如，接入点可以采用使用从附近的接入终端接收的消息的一个或多个算法来维持在为接入点传输提供足够的覆盖区域和减轻这些传输在附近的接入终端处造成的干扰的可接受的折衷。 这里，接入点可以在接入终端初始化时采用基于网络侦听的算法，以提供初始的发射功率控制，直到为另一发射功率控制算法（例如，接入终端辅助算法）收集足够的信息。 此外，接入终端可以采用有源接入终端保护方案来减轻接入点否则可能导致与另一接入点主动通信的附近接入终端的干扰。

公开(公告)号：US08665795B2

公开(公告)日：2014-03-04

申请号：US13277450

申请日：2011-10-20

申请人： John W Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K Surineni

发明人： John W Ketchum ,  Sanjiv Nanda ,  Arnaud Meylan ,  Shravan K Surineni

IPC分类号： H04Q7/00

CPC分类号： H04B7/0643 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0636 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

摘要： Techniques to support beamforming for stations in a wireless network are described. A station may support beamforming with implicit or explicit feedback by having capabilities to transmit and receive sounding frames, responding to training request by sending a sounding frame, and responding to request for explicit feedback. In one explicit beamforming embodiment, the station may send a first frame with an explicit feedback request and may also send a Null Data Packet (NDP) having at least one training field but no data field. The station may receive a second frame with explicit feedback, which may be derived based on the NDP. The station may derive steering information based on explicit feedback and may then send a steered frame with beamforming based on steering information. Other aspects, embodiments, and features are also claimed and described.

摘要翻译： 描述了支持无线网络中的站的波束成形的技术。 站可以通过具有发送和接收探测帧的能力来支持具有隐式或显式反馈的波束成形，通过发送探测帧来响应训练请求，以及响应对显式反馈的请求。 在一个明确的波束形成实施例中，站可以发送具有显式反馈请求的第一帧，并且还可以发送具有至少一个训练场但不包括数据字段的空数据分组（NDP）。 该站可以接收具有显式反馈的第二帧，其可以基于NDP导出。 该站可以基于显式反馈导出转向信息，然后可以基于转向信息发送具有波束成形的转向帧。 还要求和描述其它方面，实施例和特征。

公开(公告)号：US08611822B2

公开(公告)日：2013-12-17

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： H04B1/00

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。 第二个区域比第一个区域小。 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：US08582430B2

公开(公告)日：2013-11-12

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： G08C15/00

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：US20130191518A1

公开(公告)日：2013-07-25

申请号：US13358309

申请日：2012-01-25

申请人： Vidya Narayanan ,  Saumitra Mohan Das ,  Ashwin Swaminathan ,  Sanjiv Nanda ,  Ranjith Subramanian Jayaram ,  Lakshminath Reddy Dondeti

发明人： Vidya Narayanan ,  Saumitra Mohan Das ,  Ashwin Swaminathan ,  Sanjiv Nanda ,  Ranjith Subramanian Jayaram ,  Lakshminath Reddy Dondeti

IPC分类号： G06F15/177

CPC分类号： H04L67/16 ,  H04L29/08072 ,  H04L41/12 ,  H04L45/02 ,  H04W8/18 ,  H04W84/12 ,  H04W84/18

摘要： Apparatus and methods for automatic service discovery and connectivity include acts of or components for retrieving service metadata associated with one or more service devices from a connectivity entity, wherein the service metadata comprises connectivity parameters, and configuring one or more links with at least one of the one or more service devices based on the service metadata. Further, the apparatus and methods may include acts of or components for using a service available from the one or more service devices through the one or more links.

摘要翻译： 用于自动服务发现和连接的设备和方法包括用于从连接实体检索与一个或多个服务设备相关联的服务元数据的动作或组件，其中所述服务元数据包括连接性参数，以及使用至少一个 基于服务元数据的一个或多个服务设备。 此外，装置和方法可以包括通过一个或多个链路使用可从一个或多个服务设备获得的服务的动作或组件。

公开(公告)号：US08489135B2

公开(公告)日：2013-07-16

申请号：US12419228

申请日：2009-04-06

申请人： Sanjiv Nanda ,  Ranganathan Krishnan

发明人： Sanjiv Nanda ,  Ranganathan Krishnan

IPC分类号： H04W28/04 ,  H04W48/18

CPC分类号： H04W8/005 ,  H04B1/7183 ,  H04W48/16 ,  H04W84/20

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 listen for a period of time for an incoming pilot signal from a remote terminal that exceeds a threshold power level for the purpose of acquiring such incoming pilot signal and operating under control of the remote terminal, and operating independently of the remote terminal if such pilot signal is not detected within the period of time, such independent operation including transmitting a pilot signal.

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：为了获取这样的输入导频信号并在控制下操作的目的，监听来自远程终端的输入导频信号超过阈值功率电平的一段时间 并且如果在该时间段内没有检测到这样的导频信号，则独立于远程终端操作，这种独立操作包括发送导频信号。

公开(公告)号：US08483620B2

公开(公告)日：2013-07-09

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。