Supporting idle stations in wireless distribution systems
Granted: February 16, 2016
Patent Number:
9265020
One embodiment described herein, a method of supporting wireless stations in a wireless distribution system having a portal and one or more access points is described. The method comprises accepting by a first access point (AP) a set of filters from a station; receiving by the first AP signaling that the station enters into an idle mode and signaling the same to a server in the wireless distribution system; forwarding by the first AP the set of filters to the server, the set of filters…
Per-user firewall
Granted: January 5, 2016
Patent Number:
9231911
A network device to provide per-user firewall capabilities. The network device identifies a user associated with a received frame and a role of the user. The network device determines the firewall actions to be taken for the frame based on the role of the associated user. The user role may be dynamically changed by an administrator or automatically. A user role may be altered based on the authentication level of the user. The network device provides a system where a customized…
Selective service based virtual local area network flooding
Granted: January 5, 2016
Patent Number:
9231862
The present disclosure discloses a method and network device for selective service based virtual local area network (VLAN) flooding. The disclosed system receives a packet originated from a device received on a first VLAN, and flood one or more copies of the packet to a second and different VLAN if the packet is received on an access port. Furthermore, the system will flood copies of the packet to the first and same VLAN if the packet is received on a trunk port. The device originating…
Dynamic grouping and configuration of access points
Granted: December 29, 2015
Patent Number:
9225602
A method is described for moving one or more access points between neighboring enterprise networks such that one or more threshold requirements of the networks are met. By reconfiguring access points to move between enterprise networks, the method provides a highly flexible network system that utilizes environmental and/or operational data to dynamically meet the needs of associated client devices and consumers.
Method and system for measuring wireless link quality
Granted: December 15, 2015
Patent Number:
9215609
The present disclosure discloses a method and network device for measuring wireless link quality. The disclosed network device retrieves a plurality of packet transmission data corresponding to a plurality of transmission rates at which packets are transmitted over a wireless link between two wireless nodes in a wireless network. The network device also determines a wireless link quality metric value corresponding to the wireless link at least based on at least an average throughput…
Interference classification with minimal or incomplete information
Granted: September 8, 2015
Patent Number:
9130871
Interference classification with minimal or incomplete information. Receivers in access points and in other network devices on a wireless digital network may be switched to a spectrum monitor mode in which they provide amplitude-versus-frequency information for a chosen part of the spectrum. This may be performed by performing a FFT or similar transform on the signals from the receiver. Receivers are calibrated with known interference sources in controlled environments to determine…
Method and system to configure network devices
Granted: August 18, 2015
Patent Number:
9113406
A method includes determining, for a particular time period, a scheduled location for a device based on a schedule corresponding to a user of the device. The method further includes configuring a set of network devices, that have a signal coverage area which includes the scheduled location, such that a first subset of the network devices is configured for connecting with the first client device during the particular time period and a second subset of network devices is configured for not…
Distributed load balancing in wireless networks
Granted: August 18, 2015
Patent Number:
9113335
Distributed load balancing in wireless digital networks. In a network having a plurality of access nodes with at least one wireless client connected to a first access node, the client is encouraged to move to a different access node by reducing the apparent signal strength of transmissions from the access node to the client. Apparent signal strength can be reduced by reducing transmit power, by using beam forming, antenna switching, or a combination. Other access nodes may send…
System and method for maintaining captive portal user authentication
Granted: August 4, 2015
Patent Number:
9100242
The present disclosure discloses a method and network device for maintaining captive portal user authentication. Specifically, the disclosed system determines an association status between a client and an access point in a wireless network, as well as whether to remove an entry corresponding to the client from a network layer (L3) cache based on the association status. If it is determined that the entry is to be removed, the disclosed system removes the entry corresponding to the client…
Client balancing in wireless networks
Granted: August 4, 2015
Patent Number:
9100895
A method directed to receiving, by a network device, client density data of a first access node in a plurality of access nodes in a network. Also, the network device receives client density data of a second access node in the plurality of access nodes. The network device determines whether the client density data of the first access node overlaps with the client density data of the second access node. In response to the received client density data of the first access node overlapping…
Managing multiple virtual network memberships
Granted: August 4, 2015
Patent Number:
9100215
To facilitate management and configuration of VLAN memberships associated with applications or network protocols, a network device receives a packet from a wireless station which is a member of a virtual local area network (VLAN). The network device determines whether the packet is associated with a predefined application or network protocol. If so, the network device delivers the received packet to a dedicated VLAN which is accessible only to network devices associated with the…
System and method for determining leveled security key holder
Granted: July 14, 2015
Patent Number:
9084111
The present disclosure discloses a network device and/or method for determination of leveled security key holders for a wireless client in a wireless network. The network device detects a roaming or connection pattern of one or more wireless clients in the wireless network based on requests received from the wireless clients. Furthermore, the network device determines one or more selecting rules for selecting an appropriate key holder for the wireless client among a plurality of network…
Balancing clients across bands in a single access point
Granted: July 7, 2015
Patent Number:
9078192
Balancing client load on an access point in a wireless digital network. An access point tracks the number of connected users and accepts new connections only if the number of connected users is below a preset threshold. The number of connected users may be tracked on an access point wide basis, a per-band basis, a per-BSSID basis, or a combination. Similarly, accepting new connections may be done on an access point wide basis, a per-band basis, a per-BSSID basis, on the basis of client…
Enhanced serialization mechanism
Granted: June 23, 2015
Patent Number:
9065701
The present disclosure discloses a method and network device for an enhanced serialization mechanism. Specifically, the disclosed system receives a plurality of packets from a plurality of transport layer flows corresponding to a security association. Also, the system designates one processor of a plurality of processors to be associated with the security association. Moreover, the system assigns a sequence number to each packet, and transmits the plurality of packets from the plurality…
Method and system for maintaining derived data sets
Granted: June 16, 2015
Patent Number:
9058349
A first data set is derived from a second data set. The first data set is stored in a database of derived data sets. The second data set is updated without updating the first data set, such that the first data set and the second data are inconsistent. The first data set is deleted or updated during batch processing of the database of the derived data sets.
Home virtual local area network identification for roaming mobile clients
Granted: June 16, 2015
Patent Number:
9060331
The present disclosure discloses a method and network device for home VLAN identification for roaming mobile clients. Specifically, the disclosed method and system detects that the mobile client has roamed away from a first network to a second network, maintains a mapping between a virtual local area network (VLAN) corresponding to the mobile client and a tunnel corresponding to a foreign agent in the second network, and forwards packets to or from the mobile client on the VLAN based on…
Aggregating multiple wireless channels
Granted: June 16, 2015
Patent Number:
9060323
Extending wired networks by aggregating multiple wireless links. Multiple wireless links are used to bridge wired networks, such as wired Ethernet networks. Each wireless link applies a hash function to the destination MAC address of presented traffic and uses the result of the hash function to determine if the traffic is passed by that wireless link or is dropped. For broadcast and multicast frames, the hash function is calculated on the source MAC address. Dynamic source MAC rewriting…
Method and system for preventing loops in mesh networks
Granted: June 16, 2015
Patent Number:
9060322
The present disclosure discloses a network device and/or method for preventing loops in routing paths of network frames in a wireless digital network. The disclosed network device at a network node receives a frame from a wired network. The frame includes a site identifier uniquely corresponding to the wired network, a source physical address, and a destination physical address. If the network node is selected as a representative portal node, the network device forwards the frame.…
System and method for computing coverage set and resource allocations in wireless networks
Granted: June 16, 2015
Patent Number:
9060279
The present disclosure discloses a network device and/or method for computing coverage set and resource allocations in wireless networks. The disclosed network device receives a radio frequency subdomain and a coverage set for the radio frequency subdomain in a wireless network. Furthermore, the disclosed network device selects a capacity mode or a coverage mode as an operating mode of the radio frequency subdomain in response to a measure of network activity satisfying a predetermined…
System and method for extending battery life
Granted: June 16, 2015
Patent Number:
9059861
According to one embodiment of the invention, a method comprises identifying that a wireless receiving device is operating in a battery saving mode where a Delivery Traffic Indicator Map (DTIM) Interval supported by the wireless device exceeds a Listening Interval supported by the wireless receiving device. Thereafter, the method further comprises converting a non-unicast message into one or more unicast messages for transmission to the wireless receiving device.
