公开(公告)号：US20100246481A1

公开(公告)日：2010-09-30

申请号：US12415723

申请日：2009-03-31

申请人： Pankaj Aggarwal ,  Avinash Joshi ,  Manish Shukla

发明人： Pankaj Aggarwal ,  Avinash Joshi ,  Manish Shukla

IPC分类号： H04W40/00

CPC分类号： H04W40/02 ,  H04B7/0417 ,  H04L1/0002 ,  H04L1/0034 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0224 ,  H04L47/14

摘要： Systems and methods are provided for determining a number of spatial channels to use to transmit a data packet from a source node to a destination node. This determination can be made based on a Probability of Channel non-Correlation (PCC) function that is generated and updated by the source node based on feedback from the destination node. The PCC function indicates a probability of whether a plurality of spatial channels are non-correlated.

摘要翻译： 提供了用于确定用于将数据分组从源节点传输到目的地节点的多个空间信道的系统和方法。 可以基于基于来自目的地节点的反馈由源节点生成和更新的信道非相关（PCC）功能的概率来进行该确定。 PCC功能指示多个空间信道是否不相关的概率。

公开(公告)号：US07782835B2

公开(公告)日：2010-08-24

申请号：US11622808

申请日：2007-01-12

申请人： Hrishikesh Gossain ,  Pankaj Aggarwal ,  Charles R. Barker, Jr. ,  Keith J. Goldberg ,  William V. Hasty ,  Avinash Joshi ,  Shyamal Ramachandran ,  Surong Zeng ,  Heyun Zheng ,  Sebnem Zorlu Ozer

发明人： Hrishikesh Gossain ,  Pankaj Aggarwal ,  Charles R. Barker, Jr. ,  Keith J. Goldberg ,  William V. Hasty ,  Avinash Joshi ,  Shyamal Ramachandran ,  Surong Zeng ,  Heyun Zheng ,  Sebnem Zorlu Ozer

IPC分类号： H04J3/24 ,  H04W4/00

CPC分类号： H04W40/24 ,  H04L45/00 ,  H04L45/26 ,  H04L45/54 ,  H04W40/26

摘要： The present invention provides a system and method for multihop packet forwarding within a multihop wireless communication network. The method uses a data frame format including at least the four address fields to forward packets in a multihop wireless network. The method includes generating a route request packet at a routable device in response to receiving a packet destined for an unknown destination. The route request packet includes an originating device field including an address of an originating device, wherein the originating device generated the packet originally; and a source field, wherein the source field includes an address of the first routable device which generated the route request packet.

摘要翻译： 本发明提供了一种用于多跳无线通信网络内的多跳分组转发的系统和方法。 该方法使用包括至少四个地址字段的数据帧格式来在多跳无线网络中转发分组。 该方法包括响应于接收到目的地为未知目的地的分组，在可路由设备处生成路由请求分组。 路由请求分组包括包括始发设备的地址的始发设备字段，其中始发设备最初生成分组; 源字段，其中源字段包括生成路由请求分组的第一可路由设备的地址。

公开(公告)号：US20100157888A1

公开(公告)日：2010-06-24

申请号：US12338012

申请日：2008-12-18

申请人： Pankaj Aggarwal ,  Keith J. Goldberg ,  Avinash Joshi ,  Manish Shukla

发明人： Pankaj Aggarwal ,  Keith J. Goldberg ,  Avinash Joshi ,  Manish Shukla

IPC分类号： H04W40/02

CPC分类号： H04W40/02 ,  H04L12/1868 ,  H04L12/189 ,  H04L45/16 ,  H04L45/48 ,  H04L45/54

摘要： Systems and methods are provided for improving efficiency and reliability of broadcast transmission in a multi-hop wireless mesh communication network. In some implementations, systems and methods are provided for a leaf mesh node to acknowledge reception of a broadcast packet broadcast by an Intelligent Access Point (IAP), and for allowing the IAP to determine whether to re-communicate the broadcast packet that it had previously re-transmitted when no acknowledgment is received from a leaf mesh node.

摘要翻译： 提供了用于提高多跳无线网状通信网络中的广播传输的效率和可靠性的系统和方法。 在一些实施方式中，为叶片网状节点提供系统和方法以确认由智能接入点（IAP）广播的广播分组的接收，并且允许IAP确定是否重新传送之前已经广播的广播分组 当没有从叶网状节点接收到确认时，重新发送。

公开(公告)号：US07656901B2

公开(公告)日：2010-02-02

申请号：US11200658

申请日：2005-08-10

申请人： Guenael T. Strutt ,  Charles R. Barker, Jr. ,  William Vann Hasty, Jr. ,  Avinash Joshi ,  Sebnem Z. Ozer

发明人： Guenael T. Strutt ,  Charles R. Barker, Jr. ,  William Vann Hasty, Jr. ,  Avinash Joshi ,  Sebnem Z. Ozer

IPC分类号： H04J3/16

CPC分类号： H04W40/12 ,  H04L45/123 ,  H04W28/06 ,  H04W28/22 ,  H04W40/02 ,  H04W80/02 ,  H04W84/18 ,  H04W92/18

摘要： A system and method that creates an abstraction of the physical layer of a wireless communication network (100), in particular, a wireless ad-hoc peer-to-peer communication network (100), and that normalizes the feedback from the physical layer to enable multiple types of nodes (102, 106, 107) in the wireless network to operate using a common wireless routing protocol. This routing protocol uses a link quality metric to determine the best route regardless of how it actually chooses the route or disseminates such link quality information. The generalized routing metric can be derived for any node (102, 106, 107), regardless of its relative performance or its media access control (MAC) technology. The system and method also create a transaction summary that can be used for link adaptation and link quality estimation to determine, for example, future data rates, link quality/routing metrics, and transmit powers.

摘要翻译： 一种创建无线通信网络（100），特别是无线自组织对等通信网络（100）的物理层的抽象的系统和方法，并且将来自物理层的反馈归一化为 使无线网络中的多种类型的节点（102,106,107）能够使用公共无线路由协议进行操作。 该路由协议使用链路质量度量来确定最佳路由，而不管实际选择路由或传播此类链路质量信息。 可以为任何节点（102,106,107）导出广义路由度量，而不管其相对性能或其媒体访问控制（MAC）技术如何。 系统和方法还创建可用于链路自适应和链路质量估计的事务摘要，以确定例如将来的数据速率，链路质量/路由度量和发射功率。

公开(公告)号：US07522537B2

公开(公告)日：2009-04-21

申请号：US10755346

申请日：2004-01-13

申请人： Avinash Joshi

发明人： Avinash Joshi

IPC分类号： H04L12/28 ,  H04Q7/24

CPC分类号： H04W48/08 ,  H04L69/329 ,  H04W24/00 ,  H04W36/12 ,  H04W40/22 ,  H04W40/24 ,  H04W40/246 ,  H04W40/248 ,  H04W40/28 ,  H04W40/30 ,  H04W40/36 ,  H04W84/18 ,  H04W88/04 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/39

摘要： A system and method enables an ad-hoc communication network to maintain connectivity between intelligent access points and nodes. The method includes: broadcasting an access point advertisement from a sender node to wireless routers; deciding by the wireless routers whether to use the sender node as a next hop towards the intelligent access point based on routing criterion associated with the wireless routers and contents of the access point advertisement; transmitting a unicast route request from the wireless routers to the intelligent access point; transmitting a unicast route reply from the sender node to the wireless router in response to receiving the unicast route request; storing a route entry associated with the intelligent access point in the wireless router; and periodically broadcasting a hello message from the wireless router to the nodes identifying the route from the wireless router to the intelligent access point using the stored route entry.

摘要翻译： 系统和方法使得自组织通信网络能够维护智能接入点和节点之间的连接。 该方法包括：从发送方节点向无线路由器广播接入点广告; 基于与无线路由器相关联的路由标准和接入点广告的内容，由无线路由器决定是否使用发送方节点作为智能接入点的下一跳; 从所述无线路由器向所述智能接入点发送单播路由请求; 响应于接收到所述单播路由请求，从所述发送方节点向所述无线路由器发送单播路由应答; 存储与所述无线路由器中的所述智能接入点相关联的路由条目; 并且定期地从无线路由器向使用存储的路由条目的从无线路由器到智能接入点的路由识别路由的节点广播。

公开(公告)号：US07512074B2

公开(公告)日：2009-03-31

申请号：US10986698

申请日：2004-11-12

申请人： Guenael T. Strutt ,  Avinash Joshi

发明人： Guenael T. Strutt ,  Avinash Joshi

IPC分类号： H04L12/26

CPC分类号： H04L45/26 ,  H04L45/02 ,  H04W40/28

摘要： The present invention provides a system and method for evaluating the performance of a potential route before it is actually established. In a wireless network, when a trigger is received by a source node that suggests the existence of a better route, the source node sends a scouting packet along the suggested route. The scouting packet collects statistics related to the suggested route, without establishing the route while the scouting packet traverses the route. The metric for the suggested route, which is derived from the statistics collected by the scouting packet, is compared to the metric for the current route. If the metric for the suggested route is preferable to that of the current route, the suggested route is established as a new route.

摘要翻译： 本发明提供一种用于在实际建立之前评估潜在路线的性能的系统和方法。 在无线网络中，当源节点接收到建议存在更好路由的触发器时，源节点沿建议的路由发送一个侦察包。 侦察包收集与建议路由相关的统计信息，而不会在侦测包穿越路由时建立路由。 将由侦察包收集的统计数据导出的建议路由的度量与当前路由的度量进行比较。 如果建议路由的度量优于当前路由的度量，则建议的路由建立为新路由。

公开(公告)号：US20070274272A1

公开(公告)日：2007-11-29

申请号：US11420392

申请日：2006-05-25

申请人： Avinash Joshi ,  Manish Shukla

发明人： Avinash Joshi ,  Manish Shukla

IPC分类号： H04Q7/24

CPC分类号： H04L1/0006 ,  H04L1/0001 ,  H04L45/302 ,  H04W72/08 ,  H04W84/18

摘要： In a network comprising a source, a destination, and intermediate nodes along a route between the source and the destination, techniques are provided for allocating one or more time slots to transmit a particular data stream along the route based on the QoS requirements to transmit the particular data stream. In one implementation, a Scout Request message (SRM) is sent from the source to the destination to allocate time slots along the route to transmit a particular data stream to the destination. The SRM can include QoS requirements to transmit the particular data stream. Each intermediate node along the route can allocate one or more time slots to transmit the particular data stream based on the QoS requirements needed to transmit the particular data stream along the route.

摘要翻译： 在包括源和目的地之间的路由的源，目的地和中间节点的网络中，提供了用于分配一个或多个时隙以基于QoS要求沿着路由发送特定数据流的技术，以发送 特定数据流。 在一个实现中，Scout请求消息（SRM）从源发送到目的地以沿着路由分配时隙以将特定数据流发送到目的地。 SRM可以包括传输特定数据流的QoS要求。 沿着路由的每个中间节点可以基于沿路由发送特定数据流所需的QoS要求来分配一个或多个时隙以发送特定数据流。

公开(公告)号：US20070211686A1

公开(公告)日：2007-09-13

申请号：US11348607

申请日：2006-02-06

申请人： John Belcea ,  Pertti Alapuranen ,  Michael Johnson ,  Avinash Joshi ,  Robin Roberts

发明人： John Belcea ,  Pertti Alapuranen ,  Michael Johnson ,  Avinash Joshi ,  Robin Roberts

IPC分类号： H04J3/00

CPC分类号： H04W74/0808 ,  H04L41/00 ,  H04L45/26 ,  H04W74/0866 ,  H04W84/18

摘要： Techniques are provided for reliably distributing network management information in and ad hoc multi-hop wireless network which includes a number of existing nodes. A first node selects a particular timeslot in a dedicated channel based on the network management information received from the neighbor nodes and determines, via a contention channel, if the particular timeslot is being used by any neighbor nodes of the first node. If the particular timeslot is determined to be unused, then it is assigned to the first node for periodically transmitting network management information.

摘要翻译： 提供了技术，用于将网络管理信息可靠地分发到包括多个现有节点的多跳无线网络中。 第一节点基于从邻居节点接收的网络管理信息在专用信道中选择特定时隙，并且经由竞争信道确定该特定时隙是否被第一节点的任何相邻节点使用。 如果特定时隙被确定为未使用，则将其分配给第一节点以周期性地发送网络管理信息。

公开(公告)号：US20070153789A1

公开(公告)日：2007-07-05

申请号：US11324483

申请日：2006-01-03

申请人： Charles Barker ,  Avinash Joshi

发明人： Charles Barker ,  Avinash Joshi

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L12/1854 ,  H04L12/189 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2416 ,  H04W72/005

摘要： Techniques are provided for providing information to a group of nodes over a medium. Before transmitting information to the group of nodes, a source can analyze factors to determine transmission reliability of a first transmission technique and a second transmission technique and generate an analysis result. Based on the result of this analysis, the source can select one of the first transmission technique and the second transmission technique for providing the information to the group of nodes over the medium.

摘要翻译： 提供了用于通过介质向一组节点提供信息的技术。 在将信息发送到节点组之前，源可以分析因素来确定第一传输技术和第二传输技术的传输可靠性并产生分析结果。 基于该分析的结果，源可以选择第一传输技术和第二传输技术之一，以将信息提供给介质上的节点组。

公开(公告)号：US20070127379A1

公开(公告)日：2007-06-07

申请号：US11295912

申请日：2005-12-07

申请人： Hrishikesh Gossain ,  Avinash Joshi

发明人： Hrishikesh Gossain ,  Avinash Joshi

IPC分类号： H04J1/16

CPC分类号： H04L45/22 ,  H04W24/00 ,  H04W40/12 ,  H04W40/125 ,  H04W40/14 ,  H04W40/22 ,  H04W40/28 ,  H04W48/08

摘要： A system and method for improving a current wireless communication route, between a source node and a destination node in an on-demand wireless communication network, enables the current communication route to be improved even when the current route has not failed. The method includes analyzing at a local node a packet transmission from the source node, the packet transmission comprising a current route metric (step 705). The local node then determines that it can provide an improved wireless communication route, between the source node and the destination node, having a better route metric than the current route metric (step 710). A route improvement message is then transmitted from the local node to the source node (step 740).

摘要翻译： 用于改善在点播无线通信网络中的源节点和目的地节点之间的当前无线通信路由的系统和方法使即使当前路由未失败也能够改善当前通信路由。 该方法包括在本地节点处分析来自源节点的分组传输，所述分组传输包括当前路由度量（步骤705）。 然后，本地节点确定它可以在源节点和目的地节点之间提供改进的无线通信路由，其具有比当前路由度量更好的路由度量（步骤710）。 然后，路由改进消息从本地节点发送到源节点（步骤740）。