Patent application number | Description | Published |
20080240078 | Path shortening in a wireless mesh network - In one embodiment, a method includes a mesh point receiving mesh advertisement messages from advertising mesh points of a wireless mesh network having a mesh portal with a wired connection to a wired network. Each mesh advertisement message specifies a corresponding metric for reaching the mesh portal and has a corresponding signal strength indicator. An ordered group of parent access points, ordered based on the respective metrics, is generated from among the advertising mesh points, starting with a first parent access point having a corresponding optimum metric for reaching the mesh portal and independent of the corresponding signal strength indicator. A registration message is sent to each of the parent access points identifying a corresponding specified priority based on a corresponding position in the ordered group, for use by the corresponding parent access point in selecting a minimum interframe spacing for forwarding a wireless packet received from the mesh point. | 10-02-2008 |
20090031123 | Secure Remote Configuration of Device Capabilities - In one embodiment, the present invention is a method for providing a secure remote configuration. The method includes obtaining a signed configuration file (S-CF) from a storage using a device identity of the device, wherein the device identity of the device is linked with a location of the device. A validated configuration file (V-CF) is then generated using the S-CF. At least one device parameter is then configured using the V-CF. In another embodiment, the present invention is a method for providing a signed configuration file (S-CF) to the device. The method includes processing a request for an S-CF from the device, wherein the request comprises a device identity of the device. A location of the device is then determined using a location database and the device identity of the device. A configuration file (CF) for the location of the device is then obtained from a storage. An S-CF is then generated using the CF. The S-CF is then provided to the device. | 01-29-2009 |
20090201851 | Coordinated Channel Change in Mesh Networks - A coordinated channel change system. In particular implementations, a method includes receiving a prepare-to-change message, wherein the prepare-to-change message indicates instructions to prepare to change channels and includes a designated channel, and forwarding the prepare-to-change message to one or more child nodes. The method also includes receiving a ready-to-change message from the one or more child nodes, and transmitting a change-to-channel message to the one or more child nodes, wherein the change-to-channel message indicates instructions to switch to the designated channel. The method also includes receiving an acknowledgement message from the one or more child nodes, and changing to the designated channel. | 08-13-2009 |
20090201898 | End-to-End Packet Aggregation in Mesh Networks - A packet aggregation system. In particular implementations, a method includes accessing one or more transmit queues, each corresponding to a wireless client associated with a given wireless mesh access point of a plurality of mesh access points. The method further includes selecting a mesh access point of the plurality of mesh access points and selecting a transmit queue corresponding to a wireless client associated with the selected mesh access point. The method further includes aggregating packets that are destined for the selected wireless client, up to a size limit, taking into account the path to the selected mesh point as well as quality of service constraints, and composing and transmitting the aggregated packet to the selected mesh access point. | 08-13-2009 |
20090232001 | Congestion Control in Wireless Mesh Networks - A congestion control system. In particular implementations, a method includes receiving packets into one or more queues and monitoring the one or more queues for congestion. The method also includes, if a number of packets in the one or more queues exceeds a first threshold, determining a congestion control mode. The method also includes generating a congestion control message indicating the congestion control mode and transmitting the congestion control message to one or more neighboring mesh nodes. | 09-17-2009 |
20090245199 | WIRELESS HAND-OVER IN MOBILE DEPLOYMENTS - The network communication system includes a wireless interface to exchange wireless signals during at least one network connection, and a handover controller that uses a route profile identifying access points distributed over a given route or region that are capable of supporting the network connection, and to handover the network connection between access points as the device travels along the given route or through a region according to the route profile. | 10-01-2009 |
20090274047 | Distributed Bi-Directional Flow Control in Wireless Mesh Networks - A distributed, bidirectional congestion control and starvation avoidance system for wireless mesh networks. In particular implementations, the nodes of the wireless mesh network monitor their respective local buffers for traffic load, and signal upstream and downstream nodes in response to detected congestion or excess capacity to dynamically allocate transmit capacity between neighboring nodes. Particular implementations are capable of mitigating congestion and preventing starvation in a fully distributed, low-overhead, scalable and efficient manner. | 11-05-2009 |
20100220856 | PRIVATE PAIRWISE KEY MANAGEMENT FOR GROUPS - In an example embodiment, a key generation system (KGS) is used to generate private pairwise keys between peers belonging to a group. Each member of the group is provisioned with a set of parameters which allows each member to generate a key with any other member of the group; however, no group member can derive a key for pairings involving other group members. The private pairwise keys may be used to derive session keys between peers belonging to the group. Optionally, an epoch value may be employed to derive the private pairwise keys. | 09-02-2010 |
20120093037 | PATH SHORTENING IN A WIRELESS MESH NETWORK - In one embodiment, a method includes a mesh point receiving mesh advertisement messages from advertising mesh points of a wireless mesh network having a mesh portal with a wired connection to a wired network. Each mesh advertisement message specifies a corresponding metric for reaching the mesh portal and has a corresponding signal strength indicator. An ordered group of parent access points, ordered based on the respective metrics, is generated from among the advertising mesh points, starting with a first parent access point having a corresponding optimum metric for reaching the mesh portal and independent of the corresponding signal strength indicator. A registration message is sent to each of the parent access points identifying a corresponding specified priority based on a corresponding position in the ordered group, for use by the corresponding parent access point in selecting a minimum interframe spacing for forwarding a wireless packet received from the mesh point. | 04-19-2012 |