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：US07733766B2

公开(公告)日：2010-06-08

申请号：US11260826

申请日：2005-10-27

申请人： Sebnem Z. Ozer ,  Surong Zeng ,  Charles R. Barker, Jr.

发明人： Sebnem Z. Ozer ,  Surong Zeng ,  Charles R. Barker, Jr.

IPC分类号： G01R31/08

CPC分类号： H04L12/2854 ,  H04L47/11 ,  H04L47/12 ,  H04L47/14 ,  H04L47/263 ,  H04L47/30 ,  H04W24/00 ,  H04W28/08 ,  H04W28/12 ,  H04W28/22 ,  H04W88/08

摘要： A system and method for providing a traffic control scheme for QoS provision and congestion control across multiple interfaces of wireless nodes (102, 106 and 107), such as wireless access points (107 and 106), communicating in a wireless multihopping communication network (100). The nodes (102, 106 and 107) can include multiple transceivers. The system and method detects bottleneck interfaces in these nodes (102,106, 107) to control the traffic along the path of the corresponding traffic flow. Different measurements and cross-layer feedback are used to differentiate the cause of the congestion, such as wireless link quality degradation due to fading or degradation due to congestion in a shared medium. The nodes (102, 106, 107) inform each other on the status of their congestion level. High and low level signaling and interruption mechanisms are used to control the interfaces of the congested node (102, 106 or 107) to adjust traffic flow and alleviate the congestion.

摘要翻译： 一种用于在无线节点（102,106和107）的多个接口（例如无线接入点（107和106））的多个接口上提供QoS提供和拥塞控制的业务控制方案的系统和方法，在无线多​​呼叫通信网络（100 ）。 节点（102,106和107）可以包括多个收发器。 系统和方法检测这些节点（102,106,107）中的瓶颈接口，以控制沿着相应业务流的路径的流量。 使用不同的测量和跨层反馈来区分拥塞的原因，例如由于共享介质中的拥塞引起的衰落或劣化导致的无线链路质量劣化。 节点（102,106,107）在其拥塞级别的状态上通知彼此。 高低级信令和中断机制用于控制拥塞节点（102,106或107）的接口，以调整业务流量并减轻拥塞。

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：US07542478B1

公开(公告)日：2009-06-02

申请号：US11158737

申请日：2005-06-22

申请人： Sebnem Z. Ozer ,  Surong Zeng ,  Charles R. Barker, Jr.

发明人： Sebnem Z. Ozer ,  Surong Zeng ,  Charles R. Barker, Jr.

IPC分类号： H04L12/413

CPC分类号： H04W48/08 ,  H04W28/22 ,  H04W74/00 ,  H04W84/18

摘要： A system and method to avoid and control the bottleneck points in multi-hop wireless ad-hoc networks is described. This is achieved by using the overheard RTS/(N)CTS information to compute a weighted combination of the node's and neighbors weighted queue size. Rate limiting factor can be distributed by using ACK messages in case RTS/CTS is not enabled while node weight values can be distributed in DATA messages. Furthermore, rate limiting is based on two metrics that eliminate the problems of drop-tail schemes. Priority levels may be used for selective rejection to provide availability for emergency and system packets.

摘要翻译： 描述了一种在多跳无线自组织网络中避免和控制瓶颈点的系统和方法。 这是通过使用侦听RTS /（N）CTS信息来计算节点和邻居加权队列大小的加权组合来实现的。 可以通过使用ACK消息来分发速率限制因子，以防在RTS / CTS未启用，而节点权重值可以分发在DATA消息中。 此外，速率限制是基于两个度量标准，消除了拖尾方案的问题。 优先级可用于选择性拒绝以提供紧急和系统数据包的可用性。

公开(公告)号：US07072323B2

公开(公告)日：2006-07-04

申请号：US09929031

申请日：2001-08-15

申请人： Robin U. Roberts ,  Charles R. Barker, Jr.

发明人： Robin U. Roberts ,  Charles R. Barker, Jr.

IPC分类号： H04Q7/24

CPC分类号： H04W36/0011 ,  H04L29/12018 ,  H04L29/12811 ,  H04L61/10 ,  H04L61/6009 ,  H04W8/26 ,  H04W40/248 ,  H04W40/36 ,  H04W80/04

摘要： A communications network which is capable of effectively and efficiently handling mobility of wireless user terminals between access point nodes of a packet-switched network with minimal overhead and packet loss, and a method for using the same. The communications network employs a packet-switched core network and a plurality of access points coupled to the core network. Each access point is adapted to provide any user terminal with wireless communications access to the core network when that user terminal becomes affiliated with that access point. The system and method further employ ad-hoc routing techniques during handoff of a wireless user terminal between access point nodes of the core network to enable the network to maintain multiple paths via which data packets are provided to the user terminal during handoff to substantially eliminate packet loss during handoff.

公开(公告)号：US06968158B1

公开(公告)日：2005-11-22

申请号：US09494444

申请日：2000-01-31

申请人： Mahesh B. Bhuta ,  Alex C. Wang ,  Charles R. Barker, Jr.

发明人： Mahesh B. Bhuta ,  Alex C. Wang ,  Charles R. Barker, Jr.

IPC分类号： H04B1/00 ,  H04L12/56 ,  H04W4/14

CPC分类号： H04L67/322 ,  H04W4/14 ,  H04W4/20

摘要： Graphical display data representing an image for display is packetized for wireless transmission. At least one command for displaying the image from the data is within the packet. The command is used to display the image, as represented by the packetized data, in related configurations to create an animated display or at predetermined times or intervals to make the image appear spontaneously or be removed after a predetermined period of time for later display or are erased. Transmission of the packetized data occurs when the receiving devise is idle. The transmission of the packets may be interrupted by a present need to establish a communications channel with the receiving device, for example for voice communication or for transmission of hyperlinked data. A handshake protocol is used to assure the parts of the packetized data are successfully downloaded.

摘要翻译： 表示用于显示的图像的图形显示数据被分组化用于无线传输。 用于从数据显示图像的至少一个命令在分组内。 该命令用于在相关配置中显示由分组化数据表示的图像以创建动画显示，或者以预定时间或间隔使图像自发地出现或在预定时间段之后被移除以供稍后显示，或者是 擦除 当接收设备空闲时，发送分组数据。 当前需要与接收设备建立通信信道，例如用于语音通信或用于超链接数据的传输，分组的传输可能被中断。 握手协议用于确保分组化数据的部分成功下载。

公开(公告)号：US08248949B2

公开(公告)日：2012-08-21

申请号：US11858507

申请日：2007-09-20

申请人： Sebnem Zorlu Ozer ,  Charles R. Barker, Jr. ,  William V. Hasty

发明人： Sebnem Zorlu Ozer ,  Charles R. Barker, Jr. ,  William V. Hasty

IPC分类号： H04L12/26

CPC分类号： H04W84/22 ,  H04W24/02 ,  H04W88/16

摘要： A method and device for providing an alternative backhaul portal at a mesh access point in a mesh network as provided enables improved backhaul services. The method includes processing a registration of the mesh access point as an alternative backhaul portal in the mesh network. It is then determined that additional backhaul capacity is required in the mesh network. Next, the mesh access point is activated as an alternative backhaul portal in the mesh network in response to determining that additional backhaul capacity is required. Mesh network data are then routed through the alternative backhaul portal at the mesh access point until it is determined that additional backhaul capacity is no longer required. The mesh access point is then deactivated as an alternative backhaul portal in the mesh network.

摘要翻译： 用于在所提供的网状网络中的网格接入点处提供备用回程门户的方法和设备使得能够改进回程服务。 该方法包括处理网状接入点的注册作为网状网络中的替代回程门户。 然后确定在网状网络中需要额外的回程容量。 接下来，响应于确定需要额外的回程容量，网状接入点被激活为网状网络中的替代回程门户。 然后，网状网络数据通过网状接入点的备用回程门户路由，直到确定不再需要额外的回程容量为止。 然后，网状接入点作为网状网络中的替代回程门禁停用。

公开(公告)号：US07382759B2

公开(公告)日：2008-06-03

申请号：US11221136

申请日：2005-09-07

申请人： Avinash Joshi ,  Surong Zeng ,  William Vann Hasty, Jr. ,  Charles R. Barker, Jr. ,  Robin U. Roberts ,  Keith J. Goldberg

发明人： Avinash Joshi ,  Surong Zeng ,  William Vann Hasty, Jr. ,  Charles R. Barker, Jr. ,  Robin U. Roberts ,  Keith J. Goldberg

IPC分类号： H04Q7/24 ,  H04L12/28

CPC分类号： H04W40/36 ,  H04L45/02 ,  H04W40/22 ,  H04W40/24 ,  H04W40/28 ,  H04W40/30 ,  H04W84/18 ,  H04W84/22 ,  H04W88/08 ,  H04W88/182

摘要： A method and system for routing data in a wireless network (400) that enables all nodes (106, 402, 404, 406, 408) to find routes to each other even if the nodes (106, 402, 404, 406, 408) are non-meshed which are incapable of operating as a router to route packets received from other nodes (106, 402, 404, 406, 408), and for associating and reassociating the non-meshed and meshed nodes with other meshed nodes (106, 402, 404, 406, 408). The non-meshed nodes (STA 13-STA 15) request association with one of the meshed nodes (AP5) which are capable of performing packet routing, to request that the meshed node (AP5) with which the non-meshed node (STA 13) is associating operate as a proxy node to route packets between the associated non-meshed node (STA 13) and other meshed or non-meshed nodes (106, 402, 404, 406, 408). Some of the meshed nodes (106) further operate as intelligent access points (106) to provide the non-meshed nodes (STA 13-STA 15) and other meshed nodes (402) with access to other networks, such as the Internet (402), as well as to effect the association and reassociation of the non-meshed and meshed nodes (106, 402, 404, 406, 408).

摘要翻译： 一种在无线网络（400）中路由数据的方法和系统，其使得所有节点（106,402,404,406,408）能够找到彼此的路由，即使节点（106,402,404,406,408） 不能作为路由器操作来路由从其他节点（106,402,404,406,408）接收到的分组，并且用于将非网状和网状节点与其他网格节点（106,104,404,408）相关联并重新关联， 402,404,406,408）。 非网状节点（STA 13 -STA 15）请求与能够执行分组路由的网格节点（AP 5）之一的关联，以请求与非网格节点（AP 5） STA 13）作为代理节点进行关联，以在相关联的非网格节点（STA 13）与其他网格或非网格节点（106,402,404,406,408）之间路由分组。 一些网状节点（106）进一步作为智能接入点（106）运行，以向非网状节点（STA 13 -STA 15）和其他网状节点（402）提供对诸如因特网（402）等其他网络的访问 ），以及实现非网格和网格节点（106,402,404,406,408）的关联和重新关联。

公开(公告)号：US06175733B1

公开(公告)日：2001-01-16

申请号：US09263335

申请日：1999-03-05

申请人： David S. Seekins ,  Saumil Parikh ,  Charles R. Barker, Jr.

发明人： David S. Seekins ,  Saumil Parikh ,  Charles R. Barker, Jr.

IPC分类号： H04B726

CPC分类号： H04W36/0088

摘要： A communication device (102) has a serving and neighbor list (202) and a bandmap (204, 206). Upon losing communication service (402) the device begins alternately scanning the serving and neighbor list (SNL) and subsections (302, 304, 306, 308) of the bandmap. If an appropriate carrier is found while scanning the SNL, the device reconnects to the serving system. While scanning the subsections of the bandmap, the device creates and maintains a list (312) of suitable carriers. If no carriers are found corresponding to the SNL, a serving cell is selected from the list (312).

摘要翻译： 通信设备（102）具有服务和邻居列表（202）和带状图（204,206）。 在丢失通信服务（402）时，设备开始交替地扫描频带图的服务和邻居列表（SNL）和子部分（302,304,306,308）。 如果在扫描SNL时找到适当的载体，则设备将重新连接到服务系统。 在扫描带状图的子部分的同时，设备创建并维护适当载体的列表（312）。 如果没有与SNL对应的载波，则从列表（312）中选择服务小区。

公开(公告)号：US07284268B2

公开(公告)日：2007-10-16

申请号：US10255608

申请日：2002-09-27

申请人： Jeffrey C. Schmidt ,  Philip A. Gutierrez ,  Charles R. Barker, Jr.

发明人： Jeffrey C. Schmidt ,  Philip A. Gutierrez ,  Charles R. Barker, Jr.

IPC分类号： H04L29/00 ,  H04L29/02

CPC分类号： H04L63/0209 ,  H04L45/60 ,  H04L63/10 ,  H04W4/12 ,  H04W84/18

摘要： A system and method for providing the ability to selectively share data in a network routing device with an associated host. The system and method employs a hardware firewall in the routing device which restricts the host such that it can only access areas in shared memory which contains data destined for the host. The routing device CPU notifies the host of pending data and the location of that data in the shared memory. The hardware firewall is also notified of the location in shared memory which the host may access. When the host attempts to read the data, the firewall ensures that only the stated memory area or areas are accessed by the host. Once the data has been read by the host, the firewall is notified to cancel the host's ability to access the shared memory until such time as a new packet destined for the host arrives in the routing device.

摘要翻译： 一种用于提供选择性地与相关主机共享网络路由设备中的数据的能力的系统和方法。 系统和方法在路由设备中采用限制主机的硬件防火墙，使其只能访问共享存储器中包含去往主机的数据的区域。 路由设备CPU向主机通知待处理数据和该数据在共享存储器中的位置。 硬件防火墙也被通知主机可以访问的共享内存中的位置。 当主机尝试读取数据时，防火墙确保主机仅访问所述的内存区域或区域。 一旦主机读取数据，通知防火墙取消主机访问共享内存的能力，直到目的地为主机的新数据包到达路由设备。