Abstract: Systems and method for wireless roaming include operating, via a wireless communication device, a first communication link between the wireless communication device and a first access point using a first media access control (MAC) layer of the wireless communication device; initiating, using a second MAC layer of the wireless communication device, a roaming handover with a second access point while the first communication link remains configured for transmitting and receiving application and/or IP layer communication packets; ceasing transmission and reception of the application and/or IP layer communication packets via the first communication link after the roaming handover has been initiated; and resuming transmission and reception of the application and/or IP layer communication packets with a second communication link between the wireless communication device and the second access point upon completion of the roaming handover.

Abstract: A computing device includes: a wireless communication interface; and a processor configured to: establish a connection with a wireless network; while a network-layer status of the connection is active, monitor attributes of the connection at the wireless communication interface, the attributes including (i) a number of uplink packets transmitted since a most recent downlink packet was received, and (ii) a time period elapsed since the most recent downlink packet was received; determine that the attributes meet recovery criteria indicative of a network-layer interruption in the wireless network; in response to the determination, control the wireless communication interface to initiate a recovery action to resolve the network-layer interruption.

Abstract: A computing device includes: a wireless communication interface; and a processor configured to: establish a connection with a wireless network; while a network-layer status of the connection is active, monitor attributes of the connection at the wireless communication interface, the attributes including (i) a number of uplink packets transmitted since a most recent downlink packet was received, and (ii) a time period elapsed since the most recent downlink packet was received; determine that the attributes meet recovery criteria indicative of a network-layer interruption in the wireless network; in response to the determination, control the wireless communication interface to initiate a recovery action to resolve the network-layer interruption.

Abstract: Wireless local area network (WLAN) field coverage is analyzed in a venue. A mobile data capture device measures coverage data indicative of the WLAN field coverage from a plurality of locations in the venue, and also captures image data indicative of images of the locations in the venue. A controller correlates the measured coverage data and the captured image data at each location. An interface displays the captured image data correlated with the measured coverage data at each location. Impact score value data indicative of the WLAN field coverage may also be determined, correlated, and displayed for each location.

Abstract: A client device and method for analysis of a predetermined set of parameters associated with a radio coupling to a WLAN is provided. The client device includes a memory and a radio coupled to at least one processor. The at least one processor executes in the memory a first client Wireless Local Area Network (WLAN) stack having a plurality of layers configured to couple the radio to a WLAN. The at least one processor also executes in the memory a second client WLAN stack emulating the plurality of layers of the first client WLAN stack. The at least one processor is configured to receive, at the second client WLAN stack, data from the plurality of layers of the first client WLAN stack and analyze a predetermined set of WLAN parameters of the client device based on the data received from the plurality of layers of the first client WLAN stack.

Abstract: A system for monitoring wireless communications in a client device includes a wireless communications interface, including: an analyzer; a monitoring controller coupled to the analyzer; an operational controller of the client device coupled to the wireless communications interface, the operational controller configured to: control the wireless communications interface to establish a wireless connection with an access point according to a set of connection parameters including a channel identifier; and transmit the set of connection parameters to the monitoring controller; the monitoring controller configured, responsive to receiving the connection parameters from the operational controller, to: monitor a channel corresponding to the channel identifier to obtain a plurality of frames transmitted over the channel; and provide the plurality of frames to the analyzer.

Abstract: Wireless local area network (WLAN) field coverage is analyzed in a venue. A mobile data capture device measures coverage data indicative of the WLAN field coverage from a plurality of locations in the venue, and also captures image data indicative of images of the locations in the venue. A controller correlates the measured coverage data and the captured image data at each location. An interface displays the captured image data correlated with the measured coverage data at each location. Impact score value data indicative of the WLAN field coverage may also be determined, correlated, and displayed for each location.

Abstract: A system for monitoring wireless communications in a client device includes a wireless communications interface, including: an analyzer; a monitoring controller coupled to the analyzer; an operational controller of the client device coupled to the wireless communications interface, the operational controller configured to: control the wireless communications interface to establish a wireless connection with an access point according to a set of connection parameters including a channel identifier; and transmit the set of connection parameters to the monitoring controller; the monitoring controller configured, responsive to receiving the connection parameters from the operational controller, to: monitor a channel corresponding to the channel identifier to obtain a plurality of frames transmitted over the channel; and provide the plurality of frames to the analyzer.

Abstract: Wireless local area network (WLAN) field coverage is analyzed in a venue. A mobile data capture device measures coverage data indicative of the WLAN field coverage from a plurality of locations in the venue, and also captures image data indicative of images of the locations in the venue. A controller correlates the measured coverage data and the captured image data at each location. An interface displays the captured image data correlated with the measured coverage data at each location. Impact score value data indicative of the WLAN field coverage may also be determined, correlated, and displayed for each location.

Abstract: A client device and method for analysis of a predetermined set of parameters associated with a radio coupling to a WLAN is provided. The client device includes a memory and a radio coupled to at least one processor. The at least one processor executes in the memory a first client Wireless Local Area Network (WLAN) stack having a plurality of layers configured to couple the radio to a WLAN. The at least one processor also executes in the memory a second client WLAN stack emulating the plurality of layers of the first client WLAN stack. The at least one processor is configured to receive, at the second client WLAN stack, data from the plurality of layers of the first client WLAN stack and analyze a predetermined set of WLAN parameters of the client device based on the data received from the plurality of layers of the first client WLAN stack.

Abstract: Wireless local area network (WLAN) field coverage is analyzed in a venue. A mobile data capture device measures coverage data indicative of the WLAN field coverage from a plurality of locations in the venue, and also captures image data indicative of images of the locations in the venue. A controller correlates the measured coverage data and the captured image data at each location. An interface displays the captured image data correlated with the measured coverage data at each location. Impact score value data indicative of the WLAN field coverage may also be determined, correlated, and displayed for each location.

Abstract: An apparatus and method for establishing mobile connectivity conditions for mobile subscriber units in a wireless communication network includes scanning, by each mobile subscriber unit, for candidate access points and affiliated channels for roaming, whereupon the unit can roam from an originating access point to one of the candidate access points on an affiliated channel for roaming. A link record in the mobile subscriber unit is used for recording an entry including the originating access point, the candidate access point, the affiliated channel for roaming, and a handoff experience value. The link record can be used upon subsequent roaming of the unit to attempt a self-devised handoff without further scanning for access points and affiliated channels. Link records can be shared between mobile subscriber units to speed up map building of link records.

Abstract: An apparatus and method for establishing mobile connectivity conditions for mobile subscriber units in a wireless communication network includes scanning, by each mobile subscriber unit, for candidate access points and affiliated channels for roaming, whereupon the unit can roam from an originating access point to one of the candidate access points on an affiliated channel for roaming. A link record in the mobile subscriber unit is used for recording an entry including the originating access point, the candidate access point, the affiliated channel for roaming, and a handoff experience value. The link record can be used upon subsequent roaming of the unit to attempt a self-devised handoff without further scanning for access points and affiliated channels. Link records can be shared between mobile subscriber units to speed up map building of link records.

Abstract: A method and apparatus for adaptive power saving for a mobile subscriber unit in a wireless communication network includes receiving beacons from an access point, measuring timing periods between received beacons, determining a delay in timing periods, and associating the delay in timing periods to a change in a quality of a communication link. The link quality can be quantified and used for reconfiguring power-save parameters in response to a change in link quality.

Abstract: A method and apparatus for adaptive power saving for a mobile subscriber unit in a wireless communication network includes receiving beacons from an access point, measuring timing periods between received beacons, determining a delay in timing periods, and associating the delay in timing periods to a change in a quality of a communication link. The link quality can be quantified and used for reconfiguring power-save parameters in response to a change in link quality.

Abstract: Disclosed is a method for providing fast secure handoff in a wireless mesh network. The method comprises configuring multiple first level key holders (R0KHs) within a radio access network to which supplicants within the multi-hop wireless mesh network are capable of establishing a security association, configuring a common mobility domain identifier within the first level key holders of a mobility domain, and propagating identity of a first level key holder and the mobility domain identifier through the wireless mesh network to enable the supplicants within the mobility domain to perform fast secure handoff.

Abstract: Techniques and technologies are provided for managing establishment, maintenance and removal of security associations (SAs) between nodes in an ad hoc network, such as a wireless mesh network.

Abstract: A method for transmitting groupcast data in a wireless mesh communication network as provided improves security of groupcast data. The method comprises processing, at a supplicant node, authentication handshake data received from an authenticator node, wherein the supplicant node is a next-hop neighbor of the authenticator node away from a root node. The supplicant node then stores a group transient key (GTK) received from the authenticator node. Next, the supplicant node processes authentication handshake data received from a third node, wherein the third node is a next-hop neighbor of the supplicant node away from the root node. The GTK is then transmitted from the supplicant node to the third node. Encrypted groupcast data are then generated at the supplicant node by using the GTK to encrypt groupcast data received from the authenticator node. Finally, the encrypted groupcast data are transmitted from the supplicant node to the third node.

Abstract: Disclosed is a method for providing fast secure handoff in a wireless mesh network. The method comprises configuring multiple first level key holders (R0KHs) within a radio access network to which supplicants within the multi-hop wireless mesh network are capable of establishing a security association, configuring a common mobility domain identifier within the first level key holders of a mobility domain, and propagating identity of a first level key holder and the mobility domain identifier through the wireless mesh network to enable the supplicants within the mobility domain to perform fast secure handoff.

Abstract: Techniques and technologies are provided for managing establishment, maintenance and removal of security associations (SAs) between nodes in an ad hoc network, such as a wireless mesh network.