Patent application number | Description | Published |
20100110877 | SYSTEM AND METHOD FOR FAILOVER OF MOBILE UNITS IN A WIRELESS NETWORK - A method of handling a discontinuation of service from a wireless access device is provided. The first wireless access device has a first basic service set identifier and communicates with a plurality of mobile units using a first channel. The method comprises transmitting a first service notice with a second wireless access device using the first channel, wherein the first service notice containing information instructing the first plurality of mobile units to transfer to a second channel for service, and providing service to the first plurality of mobile units using the second channel. | 05-06-2010 |
20100110948 | METHODS AND APPARATUS FOR LOCATING A MOBILE DEVICE IN A SLEEP MODE - Apparatus and methods are provided for locating a mobile device in a sleep mode. A method comprises transmitting a beacon signal configured to initiate transmission of a response signal from a mobile device in a sleep mode. The mobile device is associated with a first wireless access device on a first communication channel. The method further comprises receiving the response signal from the mobile device on the first communication channel and determining the physical location of the mobile device based on the response signal. | 05-06-2010 |
20100115272 | COMMUNICATING A PACKET FROM A MESH-ENABLED ACCESS POINT TO A MESH PORTAL IN A MULTI-HOP MESH NETWORK - Methods are provided for processing a packet received by a mesh-enabled access point (MAP). When a first MAP receives a packet it can determine whether the packet is destined for a mesh portal based on the destination address. If so, the first MAP can retrieve an encryption key corresponding to the mesh portal, use the encryption key to encrypt the packet and set a mesh forwarding flag in the packet to indicate that the packet is destined for a mesh portal, and is encrypted with an encryption key corresponding to the mesh portal, and then forward the packet to the next hop MAP towards the a mesh portal. The mesh forwarding flag indicates that the packet is destined for a mesh portal, is encrypted with an encryption key corresponding to the mesh portal, and is to be forwarded to the next hop MAP without performing decryption/re-encryption processing on the packet. When a MAP receives a packet, the first MAP it determines whether a mesh forwarding flag is set in the packet. When the mesh forwarding flag is set in the packet, the first MAP skips decryption/re-encryption processing of the packet, and forwards the packet to the next hop MAP towards the mesh portal. When the mesh forwarding flag is not set in the packet, the first MAP retrieves an encryption key corresponding to the mesh portal, encrypts the packet using the encryption key, sets a mesh forwarding flag in the packet and forwards the packet to the next hop MAP. | 05-06-2010 |
20100195631 | METHODS AND APPARATUS FOR RECOVERING FROM MISCONFIGURATION IN A WLAN - A method of recovering from misconfiguration of APs and other networked components includes storing a “safe” configuration, implementing a configuration request received from a network operations center (NOC), then reverting to the stored configuration in the event that connectivity is not restored with the NOC within a predetermined time period. The NOC is configured to transmit one or more handshake messages to the AP after sending the configuration request. | 08-05-2010 |
20100246419 | METHOD AND SYSTEM FOR COLLECTING LOCATIONING INFORMATION IN A WIRELESS LOCAL AREA NETWORK - A method and system are provided for determining estimated location of a wireless communication device (WCD) operating in a network. The network includes a first AP that is currently associated with, a second AP and a third AP. The first AP transmits a first RSSI data request message to the WCD at a first time over a radio channel. The first RSSI data request message includes a BSSID of the first AP. The WCD then transmits a first response message to the first AP, and in response the first AP transmits a first measured RSSI value to a trilateration engine (TE). At a second time different that the first time, the second AP can switch to the radio channel and transmit a second RSSI data request message that includes the BSSID of first AP to the WCD over the radio channel. In response, the WCD transmits a second response message to the second AP, and in response the second AP transmits a second measured RSSI value to the TE. A third AP performs a similar message exchange. This method and system can be used to collect RSSI information from the WCD at the APs without disrupting the connection of the WCD and the first AP that it is currently associated with, without disrupting the connections between the other second and third APs and any other WCDs that are currently communicating with the second and third APs, without requiring the WCD to send probe requests to the APs, and without the need to synchronize the APs. | 09-30-2010 |
Patent application number | Description | Published |
20100248715 | SYSTEMS AND METHOD FOR OPTIMIZING WIRELESS LOCAL AREA NETWORK CHANNEL SCANNING - The present disclosure optimizes wireless local area network (WLAN) channel scanning by collecting roaming data and passing summary information to wireless clients. The wireless clients are configured to utilize the summary information for WLAN channel scanning, roaming, etc. The present invention further includes a scanning algorithm associated with wireless clients that is weighted to scan more likely channels. Also, the present invention may weight the scanning algorithm to avoid radar avoidance channels, such as in IEEE 802.11h. Further, the scanning algorithm may be weighted to scan more often of channels with fast rates of change in wireless signal strength and the like. Advantageous, the present invention utilizes real data to optimize channel scanning at wireless clients thereby improving battery life and user experience while roaming. | 09-30-2010 |
20110158209 | METHOD AND APPARATUS FOR UPDATING PRESENCE STATE OF A STATION IN A WIRELESS LOCAL AREA NETWORK (WLAN) - A method and apparatus for presence state determination at an access point of a station determines whether a station associated with the access point is responsive to the access point to indicate the station is “present” or “not present”. The access point informs a presence server when the station's presence state changes. The presence server does not therefore need to rely on presence handshaking between the presence server and the station. | 06-30-2011 |
20110280118 | MANAGING WIRELESS WIDE AREA NETWORK BANDWIDTH CONSTRAINTS IN A COMMUNICATION NETWORK - A technique to manage wireless wide area network bandwidth constraints in a communication network includes; prioritizing client activities in a serving access point; detecting that wired domain access is inactive while wireless wide area domain access is active; and utilizing an available bandwidth of the wireless aide area domain access for the highest priority client activities. The lower priority client activities can be address in various different ways including transferring to other available wired access. | 11-17-2011 |
20120110183 | DISTRIBUTED PROPAGATION OF DATA IN A WIRELESS COMMUNICATION NETWORK - A technique for distributed propagation of data in a wireless communication network includes providing | 05-03-2012 |
20130051376 | HYBRID BROADCAST PACKET REPLICATION FOR VIRTUAL LOCAL AREA NETWORKS - A system for hybrid broadcast packet replication for virtual local area networks includes a switch operable to receive a packet with an associated VLAN identifier and replicate the packet. A VLAN bit mask is included in the switch to filter the target destinations for the sending the replicated packets. The mask has a first level that provides to the switch an indication of a VLAN group where a radio of an AP has an associated client device. The mask has a second level where the mask provides to the switch an indication of a WLAN where a radio of an AP has an associated client device. The mask can have a third level where the mask provides to the switch an indication of a list of VLANs in use by each WLAN. The switch can then send those replicated packets filtered through the mask on to target devices of the identified VLAN. | 02-28-2013 |
20140148155 | METHOD AND APPARATUS FOR IMPLEMENTING TRANSMIT BEAMFORMING - One of a first access point associated with the first coverage area or the client device in the first coverage area determines that the client device is likely to roam to the second coverage area. A beamforming link is established between the client device and a second access point associated with the second coverage area. Sounding data is exchanged between one of the first access point or the client device and the second access point, wherein the sounding data is used by the second access point and the client device to calculate a steering matrix for the beamforming link between the client device and the second access point. After roaming to the second coverage area, the client device associates with the second access point and the client device and the second access point perform beamforming on the beamforming link. | 05-29-2014 |
Patent application number | Description | Published |
20090059872 | WIRELESS DYNAMIC RATE ADAPTATION ALGORITHM - A wireless switch is provided. A processor is adapted to set a radio frequency (RF) transmission speed for a wireless client based on a location of the wireless client and a signal-to-noise ratio (S/N) of a radio frequency signal received by the wireless client. | 03-05-2009 |
20090060080 | METHODS AND APPARATUS FOR LOCATION-BASED RATE LIMITING IN WIRELESS NETWORKS - Methods and systems are provided for location-based network rate limiting The system allows an administrator to logically partition an environment into a plurality of spatial regions. The method then includes specifying, for each of the spatial regions, a rate limit for that spatial region, then performing a locationing procedure to determine in which spatial region the mobile unit is located. Rate limiting is applied based on the location of the mobile unit. The systems and methods are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like. | 03-05-2009 |
20090061834 | METHODS AND APPARATUS FOR LOCATION-BASED SERVICES IN WIRELESS NETWORKS - Methods and systems are provided for the display of location-based of information in the form of a website including custom content based on the location of the mobile unit. The system allows an administrator to logically partition an environment into a plurality of spatial regions. The method then includes specifying, for each of the spatial regions, custom content, then performing a locationing procedure to determine in which spatial region the mobile unit is located. Custom content is supplied based on the location of the mobile unit. The systems and methods are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like. | 03-05-2009 |
20090147697 | ASSOCIATING A WIRELESS COMPUTING DEVICE WITH A DIFFERENT ACCESS POINT - In a network comprising a wireless computing device and a wireless switch coupled to a plurality of access points, techniques are provided for determining a particular one of access points that the wireless computing device is to be associated with and associating the wireless computing device therewith. According to one implementation, the wireless switch monitors one or more wireless communication performance metrics, and determines based on the wireless communication performance metrics, whether the wireless computing device is currently associated with the one of the access points that wireless computing device is to be associated with. If not, then the wireless switch transmits an instruction to the wireless computing device to associate with a particular access point that wireless computing device is to be associated with. | 06-11-2009 |