Patent application number | Description | Published |
20080226071 | METHOD FOR ESTABLISHING SECURE ASSOCIATIONS WITHIN A COMMUNICATION NETWORK - A method for security authentication within a wireless network is disclosed. A method within an adhoc mesh network for two devices to quickly determine roles (i.e. which is the authenticator and which is the supplicant) while establishing a security association is provided for. The invention further provides for the inclusion of cached key information in the role negotiation process and the application of role negotiation to a shortened three-way handshake. | 09-18-2008 |
20090245264 | METHOD AND SYSTEM FOR UPDATING A VIRTUAL LOCAL AREA NETWORK (VLAN) STATUS OF A NODE IN A MESH NETWORK - A method for updating at a bridge node a virtual local area network (VLAN) status of a first node in a mesh network as provided enables improved network connectivity. The method includes processing a first VLAN status message that associates a first VLAN identifier with the first node, wherein the first VLAN status message was generated in response to a first bind request (BREQ) message (step | 10-01-2009 |
20100023752 | METHOD AND DEVICE FOR TRANSMITTING GROUPCAST DATA IN A WIRELESS MESH COMMUNICATION NETWORK - 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. | 01-28-2010 |
20100029243 | METHOD AND APPARATUS FOR AGGREGATING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A Wireless Router (WR) aggregates information regarding the emergency calls based on their context and routes the aggregated emergency information to the correct portal which directs the aggregated emergency to appropriate Public Safety Answering Point (PSAP). The information aggregation is automatically triggered when the number of calls exceeds the multihop capacity to the egress point. The PSAP responds to the emergency situation by sending a response message via the Portal. The WR multicast/broadcasts the response message to the mobile devices which initiated the emergency calls. The response message generally includes emergency instructions based on incident type and location. Further, a call-back list is created for users whose emergency calls were not completed. By using the call-back list PSAP personnel can initiate calls to end users to provide assistance in emergency situations. | 02-04-2010 |
20100056174 | METHOD FOR PROXIMITY DETECTION IN A WIRELESS COMMUNICATION NETWORK - A method for proximity detection in a wireless communication network. A node attempts to determine the proximity of the closest neighboring node by transmitting a ranging request. Other nodes respond, and the first node to receive and respond to the request will have the shortest response time and thus will be the closest node. Exact ranges can be determined by applying Time-Of-Arrival (TOA) techniques to node response times. To further avoid collisions, one or more frames of the response messages can be same, making the multiple responses appear as multi-path. The group of responders can be narrowed and individual groups probed in a search pattern until the single nearest node is known or range of the nearest node is known. The ranging node may then use ordinary unicast mechanisms to probe this node, or begin scanning the groups again, or interleave the two mechanisms as desired. | 03-04-2010 |
20100135267 | METHOD FOR ADAPTIVE BEACONING - A method of adaptive beaconing includes operating a node within an ad hoc wireless communication network to calculate a probability P for an interval of time I; transmit a beacon when a uniformly distributed random number is less than the probability P; and wait for the interval of time āIā and repeat the calculate, transmit, and waiting operations when the uniformly distributed random number is greater than the probability P. | 06-03-2010 |
20100278118 | METHOD FOR SELECTING COMMUNICATION LINKS IN A MULTI-RADIO WIRELESS COMMUNICATION SYSTEM - A method provides for selecting a communication interface towards an access point by a wireless communication device. The method includes receiving one or more HELLO messages from the access point; determining whether any of a plurality of communication links is being used to reach the access point by evaluating at least one field of each of the received HELLO messages; penalizing a link metric of a communication link when the communication link is being used; and selecting a communication interface towards the access point, wherein the selected communication interface is coupled to a best communication link having a best link metric. | 11-04-2010 |