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公开(公告)号：US09743339B2
公开(公告)日：2017-08-22
申请号：US14887152
申请日：2015-10-19
申请人： Firetide, Inc.
发明人： Jorjeta Gueorguieva Jetcheva , Sachin Kanodia , Murali Sundaramoorthy Repakula , Mohan Natarajan
IPC分类号： H04W40/38 , H04W24/02 , H04W40/02 , H04W40/28 , H04L12/721 , H04L12/933 , H04L12/733 , H04L12/707 , H04W40/34 , H04W84/18
CPC分类号： H04W40/38 , H04L45/122 , H04L45/22 , H04L45/26 , H04L45/36 , H04L49/1584 , H04W24/02 , H04W40/02 , H04W40/023 , H04W40/28 , H04W40/34 , H04W84/18
摘要： Various embodiments implement a set of low overhead mechanisms to enable on-demand routing protocols. The on-demand protocols use route accumulation during discovery floods to discover when better paths have become available even if the paths that the protocols are currently using are not broken. In other words, the mechanisms (or “Route Optimizations”) enable improvements to routes even while functioning routes are available. The Route Optimization mechanisms enable nodes in the network that passively learn routing information to notify nodes that need to know of changes in the routing information when the changes are important. Learning routing information on up-to-date paths and determining nodes that would benefit from the information is performed, in some embodiments, without any explicit control packet exchange. One of the Route Optimization mechanisms includes communicating information describing an improved route from a node where the improved route diverges from a less nearly optimal route.
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公开(公告)号：US20150201415A1
公开(公告)日：2015-07-16
申请号：US14471248
申请日：2014-08-28
申请人： Firetide, Inc.
CPC分类号： H04W72/0453 , H04W28/085 , H04W72/0486 , H04W72/082 , H04W72/085 , H04W84/18
摘要： Techniques are described for automatically determining quasi-static per-link channel assignments for each radio in multiple-hop mesh networks having nodes with two or more radios and where only a small number of channels is available for use in the network. The method optimally assigns the channels to the radios of all of the nodes in the network so as to achieve the lowest interference among links and the highest possible bandwidth.
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公开(公告)号：US09706439B2
公开(公告)日：2017-07-11
申请号：US14274704
申请日：2014-05-10
申请人： Firetide, Inc.
IPC分类号： H04W28/08 , H04L12/709 , H04L12/721 , H04L12/801 , H04L12/803 , H04W40/02 , H04W84/18
CPC分类号： H04W28/085 , H04L45/245 , H04L45/26 , H04L47/10 , H04L47/125 , H04L47/14 , H04W28/08 , H04W40/02 , H04W84/18
摘要： In a mesh network composed of multiple-radio nodes, we assign each radio to one of a plurality of channels, and treat a plurality of links between a pair of nodes as one logical link (bonded link). In some embodiments, the routing protocol is adapted to view each bonded link as one link having a combination of at least some of the properties of the constituent physical links. Traffic sent along a path is dynamically load balanced between the interfaces at each intermediate node based on the current utilization of each interface. In at least some embodiments, route discovery packets record the metrics of each component link of the bonded links leaving a node, but only one route discovery packet per pair of nodes is forwarded, reducing the route discovery packet traffic compared to if each route discovery packet were forwarded over each component link between the pair of nodes.
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公开(公告)号：US09686792B2
公开(公告)日：2017-06-20
申请号：US14471248
申请日：2014-08-28
申请人： Firetide, Inc.
CPC分类号： H04W72/0453 , H04W28/085 , H04W72/0486 , H04W72/082 , H04W72/085 , H04W84/18
摘要： Techniques are described for automatically determining quasi-static per-link channel assignments for each radio in multiple-hop mesh networks having nodes with two or more radios and where only a small number of channels is available for use in the network. The method optimally assigns the channels to the radios of all of the nodes in the network so as to achieve the lowest interference among links and the highest possible bandwidth.
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公开(公告)号：US20150103813A1
公开(公告)日：2015-04-16
申请号：US14286461
申请日：2014-05-23
申请人： Firetide, Inc.
发明人： Jorjeta Gueorguieva Jetcheva , Sachin Kanodia , Murali Sundaramoorthy Repakula , Mohan Natarajan
IPC分类号： H04W40/02
CPC分类号： H04W40/38 , H04L45/122 , H04L45/22 , H04L45/26 , H04L45/36 , H04L49/1584 , H04W24/02 , H04W40/02 , H04W40/023 , H04W40/28 , H04W40/34 , H04W84/18
摘要： Various embodiments implement a set of low overhead mechanisms to enable on-demand routing protocols. The on-demand protocols use route accumulation during discovery floods to discover when better paths have become available even if the paths that the protocols are currently using are not broken. In other words, the mechanisms (or “Route Optimizations”) enable improvements to routes even while functioning routes are available. The Route Optimization mechanisms enable nodes in the network that passively learn routing information to notify nodes that need to know of changes in the routing information when the changes are important. Learning routing information on up-to-date paths and determining nodes that would benefit from the information is performed, in some embodiments, without any explicit control packet exchange. One of the Route Optimization mechanisms includes communicating information describing an improved route from a node where the improved route diverges from a less nearly optimal route.
摘要翻译： 各种实施例实现一组低开销机制以实现按需路由协议。 按需协议在发现洪水期间使用路由累积，以便在更好的路径变得可用时发现，即使协议当前使用的路径没有被破坏。 换句话说，机制（或“路由优化”）可以改善路由，即使有功能的路由可用。 路由优化机制使得网络中的节点被动地学习路由信息，以便在更改重要时通知需要知道路由信息中的更改的节点。 在一些实施例中，在没有任何明确的控制分组交换的情况下，执行在最新路径上学习路由信息并确定将从该信息中受益的节点。 路由优化机制之一包括传达描述改进路由的改进路由的信息，其中改进路由从较不接近最优路由发散。
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公开(公告)号：US10009156B2
公开(公告)日：2018-06-26
申请号：US14145910
申请日：2013-12-31
申请人： Firetide, Inc.
发明人： Sachin Kanodia , Kota Rathnamaiah Sharath Kumar , Mohan Natarajan , Pramod Jathavedan Akkarachittor
IPC分类号： H04W4/00 , H04L5/00 , H04L12/801 , H04L12/813 , H04L12/851 , H04L12/825 , H04W28/12 , H04W28/24
CPC分类号： H04L5/0039 , H04L47/14 , H04L47/20 , H04L47/2408 , H04L47/26 , H04W28/12 , H04W28/24
摘要： Differentiated services are provided through service level agreements (SLAs) between access nodes and some of the clients using a wireless access network. Client devices include internal devices that are compliant with service-related specifications published by the access nodes. Client devices also may include non-compliant external and legacy devices, as well as outside interferers. The access nodes control target SLAs for each client device. The access nodes and the internal client devices perform rate limiting to ensure that a device's target SLA is adhered to. The service-related specifications include schedules to ensure preferential access for preferred internal client devices. The internal client devices send usage and bandwidth availability feedback to the access node they are associated with, enabling the access node to come up with better schedules for meeting the preferred internal devices' SLAs in view of the network conditions reported via the feedback.
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公开(公告)号：US09602399B2
公开(公告)日：2017-03-21
申请号：US14046950
申请日：2013-10-05
申请人： Firetide, Inc.
发明人： Jorjeta Gueorguieva Jetcheva , Sachin Kanodia , Murali Sundaramoorthy Repakula , Sivakumar Kailas
IPC分类号： H04L12/28 , H04L12/721 , H04W84/22 , H04W88/16 , H04L12/707 , H04L12/803 , H04L12/24 , H04W40/00
CPC分类号： H04L41/0668 , H04L12/18 , H04L12/4633 , H04L41/0654 , H04L45/124 , H04L45/22 , H04L45/44 , H04L47/125 , H04W40/00 , H04W84/22 , H04W88/16
摘要： A mesh network, operating as a virtual Ethernet switch, includes multiple nodes operating as Mesh Network Gateway Interfaces (mesh NGIs) enabled for communication with one or more shared access networks. Selectively coupling the multiple NGIs to the same shared access network provides redundancy and load balancing aimed at improving the reliability and performance of the network. A first architecture is based on a gateway group, including a plurality of NGIs enabled to communicate with a single shared access network via a designated broadcast server elected from among the NGIs. A second architecture is based on a plurality of (physical) NGIs enabled to communicate with a single shared access network via one or more designated nodes in the shared access network. The designated nodes, or Mesh Servers (MSs), operate as virtual NGIs, and traffic entering or exiting the mesh flows through one of the MSs, thus improving packet broadcast efficiency.
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公开(公告)号：US20150098330A1
公开(公告)日：2015-04-09
申请号：US14274704
申请日：2014-05-10
申请人： Firetide, Inc.
IPC分类号： H04W28/08
CPC分类号： H04W28/085 , H04L45/245 , H04L45/26 , H04L47/10 , H04L47/125 , H04L47/14 , H04W28/08 , H04W40/02 , H04W84/18
摘要： In a mesh network composed of multiple-radio nodes, we assign each radio to one of a plurality of channels, and treat a plurality of links between a pair of nodes as one logical link (bonded link). In some embodiments, the routing protocol is adapted to view each bonded link as one link having a combination of at least some of the properties of the constituent physical links. Traffic sent along a path is dynamically load balanced between the interfaces at each intermediate node based on the current utilization of each interface. In at least some embodiments, route discovery packets record the metrics of each component link of the bonded links leaving a node, but only one route discovery packet per pair of nodes is forwarded, reducing the route discovery packet traffic compared to if each route discovery packet were forwarded over each component link between the pair of nodes.
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公开(公告)号：US10959289B2
公开(公告)日：2021-03-23
申请号：US13722697
申请日：2012-12-20
申请人： Firetide, Inc.
IPC分类号： H04W84/18 , H04L12/721 , H04W80/04 , H04W40/04
摘要： Methods and systems for mobility of mobile nodes in mesh networks are taught wherein the mobile mesh nodes choose an attachment point to another mesh node based on predetermined criteria, such as the characteristics of the attachment point's path to a reference destination, and other factors local to the attachment point, such as load and available capacity. The mobile nodes forward packets on each other's behalf. Static and mobile nodes and the links between them are treated differently from each other in view of their respectively different properties. A special metric is used for paths that include mobile links in addition to the static mesh links and wired mesh links. Mobility is handled completely transparently to any client devices attached to the mesh nodes, where this attachment could be wireless or wired.
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公开(公告)号：US09999058B2
公开(公告)日：2018-06-12
申请号：US14475827
申请日：2014-09-03
申请人： FIRETIDE, INC.
发明人： Jorjeta Jetcheva , Ravi Prakash , Vinay Gupta , Sachin Kanodia , Mohan Natarajan
CPC分类号： H04W72/082 , H04L41/12 , H04W72/0426 , H04W72/0433 , H04W72/0486 , H04W72/121 , H04W88/08
摘要： Channel assignment for wireless access networks is directed toward improved overall communication capability of the networks. A network is formed of wireless access points (APs) coupled via wired (and/or wireless) links and enabled to communicate with clients via radio channels of each of the APs. Local information is collected at each of the APs and processed to determine channel assignments according to a Neighbor Impact Metric (NIM) that accounts for one-hop and two-hop neighbors as well as neighbors not part of the network. Optionally, the NIM accounts for traffic load on the APs. The channel assignments are determined either on a centralized resource (such as a server or one of the APs) or via a distributed scheme across the APs. The local information includes how busy a channel is and local operating conditions such as error rate and interference levels.
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