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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Assignee: Nortel Networks Limited


Location: St. Laurent, Quebec, CA
No. of patents: 697

1                      
NumberTitleIssue Date
8082441Hitless manual cryptographic key refresh in secure packet networks
In a hitless manual cryptographic key refresh scheme, a state machine is independently maintained at each network node. The state machine includes a first state, a second state, and a third state. In the first state, which is the steady state, a current cryptographi...
12/20/2011
8027347Border gateway protocol extended community attribute for layer-2 and layer-3 virtual private networks using 802.1ah-based tunnels
Described are a network, network device, and method for a method of distributing routing information for a virtual private network (VPN) application through a packet-switched network (PSN) having fully meshed provider edge (PE) routers through Provider Backbone Brid...
09/27/2011
8023985Transitioning a state of a connection in response to an indication that a wireless link to a wireless device has been lost
A method and apparatus of establishing a connection between a wireless device and a second device includes maintaining a state of the connection between the wireless device and the second device, and receiving an indication that a wireless link to the wireless devic...
09/20/2011
8019841Zoning for distance pricing and network engineering in connectionless and connection-oriented networks
Described are a system and method for establishing zone-based pricing for services transported over connectionless and connection-oriented networks. The connectivity network supporting the service is partitioned into one or more zones. A node connected to a packet t...
09/13/2011
8019343Support for handoffs in high rate packet data systems
The invention supports two types of handoffs. The first handoff is for an inter-AN cell selection where the source AN allows the AT to add a cell under the control of a different AN to its active set and then allows the AT to switch to the target AN. A bearer path i...
09/13/2011
8014377Efficient location updates, paging and short bursts
A mobile terminal in a wireless communication network may be one of several modes of operation. When in an idle mode, the mobile terminal may avoid a lengthy random access procedure normally associated with responding to a page from a base station, if the base stati...
09/06/2011
7996559Automatic MEP provisioning in a link state controlled Ethernet network
Ethernet OAM MEPs are automatically configured in a link state protocol controlled Ethernet network. A node operating in the link state protocol controlled Ethernet network receives a Link State PDU (LSP) containing a TLV having a MEP associated with the Ethernet MA...
08/09/2011
7995569Virtual routers for GMPLS networks
Virtual routers that abstract photonic sub-domains are provided for GMPLS networks. A virtual router uses a link viability matrix to keep track of the set of viable connections between inputs and outputs of a photonic sub-domain. A virtual router may receive RSVP-TE...
08/09/2011
7995564Geographic redundancy for call servers in a cellular system based on a bearer-independent core network
In a bearer-independent core network, the switching and transport of the bearer streams is separated from the processing of call sessions that control the bearer streams. The switching and transport of the bearer streams is executed by media gateways and packet swit...
08/09/2011
7995561Techniques for implementing logical trunk groups with session initiation protocol (SIP)
Techniques for implementing logical trunk groups with session initiation protocol (SIP) are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for implementing logical trunk groups with session initiation protocol (SIP)...
08/09/2011
7986915Method and system for a wireless multi-hop relay network
In a wireless multi-hop relay network arranged in a tree topology, the base station and one or more relay stations are associated as a virtual base station (VBS). The base station and each relay station have a unique virtual base station identifier (VBS-ID) associat...
07/26/2011
7984154System and method for translating application program network service requests into actions and performing those actions through the management and/or control plane responsive to previously defined policies and previous requests by the same or another application program
Application program network service requests are translated into specific actions that are then performed through the management plane and/or control plane. The translations and resulting actions are responsive to previously defined policies for the communication ne...
07/19/2011
7975140Key negotiation and management for third party access to a secure communication session
Described are a method and system for establishing a secure communication session with third-party access at a later time. A first communication subsession is established between two original devices using a first key generated by a two-party key and security associ...
07/05/2011
7969857OFDM system and method employing OFDM symbols with known or information-containing prefixes
Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to conver...
06/28/2011
7962095Relaying system and method with partner relays and selective transmission
Partner relay systems and methods are provided in which relaying is performed by a pair of partner relays. Signals received from a base station are translated by a first of the pair of partner relays to a different transmission resource for communication between the...
06/14/2011
7961649Circulating switch
A circulating switch comprises switch modules of moderate capacities interconnected by a passive rotator. Data is sent from a one switch module to another switch module either directly, traversing the rotator once, or indirectly through at least one intermediate swi...
06/14/2011
7957746Power management and distributed scheduling for uplink transmissions in wireless systems
To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats af...
06/07/2011
7933275Generic information element
A computer data signal including a generic element identifier, a plurality of task-specific data, a variable length identifier and a multi-use data type identifier. The generic element identifier is configurable to identify an information element containing the gene...
04/26/2011
7929443Session based resource allocation in a core or edge networking device
A system for providing session based resource allocation in a core or edge networking device are disclosed. Session awareness is provided in networking devices by session control signal interception and interpretation, followed by session based resource commitment, ...
04/19/2011
7924935Channel sounding in OFDMA system
Method and apparatus for determining a downlink channel response in an orthogonal frequency division multiplexing access (OFDMA) system. The method and apparatus uses the uplink quality indication channel for determining the downlink channel response, or uses round ...
04/12/2011
7920690Interworking of multimedia and telephony equipment
The present invention provides a way to associate multimedia clients with telephony devices and create multimedia sessions related to a voice connection between the telephony devices. The telephony devices may be part of a public network or an enterprise network ass...
04/05/2011
7899174Emergency services for packet networks
The present invention provides a technique for facilitating emergency services via packet networks. Emergency service providers will implement emergency proxies to ensure that proper call setup requests for emergency services are forwarded to the appropriate entitie...
03/01/2011
7848753Context transfer systems and methods in support of mobility
A broad aspect of the invention provides a method of providing mobility support for a mobile node's traffic. The method involves maintaining context information for the mobile node on each of a first plurality of network nodes carrying the traffic; and proactively t...
12/07/2010
7869538System and method for I/Q imbalance compensation
A transmitter (102) generates a first set of data symbols and a first pilot symbol (601) at a first time, and a second set of data symbols and a second pilot symbol (602) at a different, second time. The first (601) and second (602...
01/11/2011
7864752Bearer path resource matching in a wireless communication network
Call setup in a wireless communication network that includes a circuit fabric and a packet fabric. The originating MSCe receives an origination message including a call termination identifier, and a predictive bearer path matching mode is determined. When the origin...
01/04/2011
7860511Multi-carrier load balanced scheme for voice and data
A method for preventing the occurrence of overload conditions in a multi-carrier communication system such as, but not limited to, enhancements to 1xEV-DV by controlling the amount of voice and data users having access to the communication system in order to provide...
12/28/2010
7856010Circulating switch
A circulating switch comprises switch modules of moderate capacities interconnected by a passive rotator. Data is sent from a one switch module to another switch module either directly, traversing the rotator once, or indirectly through at least one intermediate swi...
12/21/2010
7844745Alternate home subscriber server (HSS) node to receive a request if a first HSS node cannot handle said request
This invention relates to methods and apparatus for providing a resilient network database. The invention relates particularly, but not exclusively, to the IP Multimedia Subsystem (IMS). The invention is directed to an interface for a database node comprising: a por...
11/30/2010
7844270Call transfer for an integrated wireline and wireless service using a temporary directory number
The present invention relates to a communication environment where calls are established with a single mobile terminal through either a wireless network or the public switched telephone network (PSTN) via a terminal adaptor, which is capable of wirelessly communicat...
11/30/2010
7843925Ethernet differentiated services architecture
A network includes an edge node configured to define per hop behaviors using a set of bits in an Ethernet header of a frame and a core node configured to receive the frame and to forward the frame according to the per-hop-behaviors. The network can also include a de...
11/30/2010
7843905Modular high-capacity switch
A modular optical switch includes a set of optical switch modules connected in a mesh, a master controller for the whole optical node and a switch-module controller for each of the optical switch modules. The optical switch modules receive optical signals from, and ...
11/30/2010
7843888Methods and apparatus for turbo space-time trellis coding
Space-time diversity using a plurality of transmit antennas is provided with a turbo coding arrangement comprising two recursive systematic convolutional coders, to one of which input bits are supplied directly and to the other of which the information bits are supp...
11/30/2010
7839891Method for using a knowledge digest to verify configuration information in a network
A first network element forwards a set of packets associated with first configuration information along a path to a second network element. Logic in the first network element generates a first knowledge digest encoding the first configuration information into a fixe...
11/23/2010
7835324Resource optimization in a wireless IP network
A method and apparatus in accordance with the present invention provide for releasing resources dedicated to a dormant mobile station in a region served by a first network access server that has migrated to in a region in an IP network served by a second network acc...
11/16/2010
7834688Linearised power amplifier
A linearized power amplifier including a predistorter and a feedforward circuit is described. By using both a predistorter and a feedforward cancellation system the linearization of the amplifier is increased. The accuracy of the amplified signal may be further impr...
11/16/2010
7831883LDPC encoders, decoders, systems and methods
An LDPC encoder with a complexity that increases linearly as a function of block size is provided. They are implementable with simple logic consisting of a repeater with an irregular repeat pattern, an interleaver, and an accumulator that performs irregular accumula...
11/09/2010
7826603Push-to-talk wireless telecommunications system utilizing a voice-over-IP network
A method and system to provide push-to-talk from one user to another in a wireless packet data telecommunications network is described. The system may include: a wireless communication network including push-to-talk (PTT) functionality, with a Session Initiation Pro...
11/02/2010
7826598Method, system and apparatus for identifying an emergency service location of an internet protocol telephony client
A method, system and apparatus for providing emergency service location of an IP telephony client. A request for an emergency call is received from the IP telephony client. Subsequently, it is determined whether an actual location of the IP telephony client is encom...
11/02/2010
7826384Method and apparatus for negotiating bearer control parameters using property sets
Methods and apparatus for negotiating bearer control parameters using property sets. A property set is a specific set of default parameters or “properties” to be used for a given bearer channel type in an integrated node. Property set information can be passed b...
11/02/2010
7822031Multicast implementation in a link state protocol controlled ethernet network
Forwarding state may be installed for sparse multicast trees in a link state protocol controlled Ethernet network by enabling intermediate nodes to install state for one or more physical multicast trees, each of which may have multiple logical multicast trees mapped...
10/26/2010
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