| Patent Number |
Title Of Patent |
Date Issued |
| 7212495 |
Signaling for reserving a communications path |
May 1, 2007 |
| A call signaling protocol that uses simplified messaging to set up, confirm set up, tear down, and confirm tear down of a connection. The available capacity of communications links is tracked so that it can be quickly determined whether or not a link can handle a call. Segments (e.g. |
| 7051106 |
Scheduling of calls with known holding times |
May 23, 2006 |
| A method of automatically queuing calls for later transmission in connection-oriented networks instead of blocking them when network resources are unavailable at the time the request is received, as currently done. A simple call queuing method holds up call setup messages at each swi |
| 6798993 |
WDM optical networks arranged for internetworking with packet networks |
September 28, 2004 |
| A connectionless packet network and an optical WDM network are interconnected by one or more optical interface modules (gateways) that include both optical to electrical interfaces, as well as a connection management module, or control element, that is arranged to control the OADM's |
| 6771604 |
Method for location management in a communication network |
August 3, 2004 |
| Disclosed is a location management method for a communication network. In a first embodiment, a procedure for finding an optimal path between a calling switch and a visiting switch node is integrated in the call set up procedure. The connection set up procedure starts by setting up a |
| 6741585 |
Interworking of addressing in an internetwork |
May 25, 2004 |
| An address interworking system and method for an internetwork that includes a first network using first network addressing communicating via one or more internetworking gateways with a second network using second network addressing. The gateways register one or more first network address |
| 6687229 |
Quality of service based path selection for connection-oriented networks |
February 3, 2004 |
| Arrangements and methods for improving the probability of finding a connection path that meets user specified delay requirements. The improvements offer packet switches enhanced path selection that will improve the resource utilization of networks, both flat networks and hierarchical |
| 6654361 |
Method for rerouting and route optimization for handoff management in a communications network |
November 25, 2003 |
| A handoff scheme for a communications network is disclosed. In a first embodiment a procedure for finding an optimal path between an originating network node and a destination network node is integrated in the handoff procedure. An optimally routed connection is obtained by first determi |
| 6628617 |
Technique for internetworking traffic on connectionless and connection-oriented networks |
September 30, 2003 |
| Traffic on a connectionless (CL) network, such as IP packets, can be routed onto a connection a connection oriented (CO) network, such as an ATM telephony network, when it is advantageous to do so from a user or service provider viewpoint, without affecting the ability of users to contin |
| 6516000 |
Communications system for transmission of datagram packets over connection-oriented networks |
February 4, 2003 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 6483853 |
Communications system for transmission of datagram packets over connection-oriented networks |
November 19, 2002 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 6385172 |
Administrative weight assignment for enhanced network operation |
May 7, 2002 |
| Methods and communication networks having a plurality of connection-oriented switches in which administrative weights are assigned based on link call blocking probabilities. Three assignment schemes include, first, a solution that can be built in the switch software of sufficiently s |
| 6151319 |
Connectionless message service using ATM routers |
November 21, 2000 |
| A facility is provided in which an ATM switch may operate as a switch in the provision of connection oriented services and operates as a router in the provision of connectionless services. In the router mode, the ATM switch may determine "on the fly" a route which may be used to forward |
| 6085086 |
Network-based migrating user agent for personal communication services |
July 4, 2000 |
| The present invention is a user process that resides in network nodes to act as an agent for mobile terminals in, for example, PCS environments. The user process handles negotiation and complex signaling functions for the user, thus reducing the amount of signaling traffic that must trav |
| 6081715 |
Method and system for distributed control in wireless cellular and personal communication system |
June 27, 2000 |
| A system for distributed control in wireless cellular and personal communication systems includes separate servers for performing call control and connection control functions, thereby obviating the need for a mobile switching or other switch to be anchored for the duration of a call |
| 6078575 |
Mobile location management in ATM networks |
June 20, 2000 |
| The tracking of mobile terminals served by base stations supported by respective switches are formed into respective peer groups of switches in which the peer groups are then formed into a hierarchical logical network having a prescribed number of levels of scope S, and in which individu |
| 6016319 |
Communications system for transmission of datagram packets over connection-oriented networks |
January 18, 2000 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 5958018 |
Wireless services data network translating mac address to asynchronous transfer mode (ATM) addre |
September 28, 1999 |
| A wireless services data network supporting the mobility of an Internet Protocol (IP) over ATM networks is implemented such that a joint ATM-layer hand-off and MAC-layer hand-off are respectively used to handle in-session and inter-session mobility. In this way the effect of mobility is |
| 5933412 |
Parallel connection control |
August 3, 1999 |
| Parallel connection control ("PCC") processes and switching networks are described. Various aspects of these PCC processes and networks relate to the provision of an alternative switching connection setup to achieve bandwidth savings or lower cost networks with acceptable setup delay. Th |
| 5872773 |
Virtual trees routing protocol for an ATM-based mobile network |
February 16, 1999 |
| The present invention is a system and method for routing cells in a wireless communications network, wherein the communications network includes a plurality of switching nodes and the cells are routed according to destination-rooted virtual path identifier (VPI) trees. The present in |
| 5822309 |
Signaling and control architecture for an ad-hoc ATM LAN |
October 13, 1998 |
| The present invention is a signaling and control architecture for establishing a connection between mobile users in a wireless ATM LAN. The ATM LAN includes a plurality of portable base station (PBS) switching nodes coupled together to enable communication between said nodes, wherein |
| 5757783 |
Method and apparatus for routing ATM cells in an AD-ATM LAN |
May 26, 1998 |
| A system and method for routing ATM cells in a wireless ATM local area network (LAN) that use portable base station (PBS) switching nodes. Routing of cells to and from mobile users within the network is accomplished utilizing a novel routing scheme which preserves cell sequence. Each |
| 5659544 |
Method and system for distributed control in wireless cellular and personal communication system |
August 19, 1997 |
| A system for distributed control in wireless cellular and personal communication systems includes separate servers for performing call control and connection control functions, thereby obviating the need for a mobile switching or other switch to be anchored for the duration of a call |
| 5610904 |
Packet-based telecommunications network |
March 11, 1997 |
| A packet-based telecommunications architecture is disclosed that, like virtual-circuit networks, preserves the sequential order in which packets are presented to the network, but does not require node-by-node call set-up or tear-down, unlike virtual-circuit networks. Further, the packet |
| 5563939 |
Method and system for delivering a communication service |
October 8, 1996 |
| A signaling provider network which receives and transmits at least a subset of all signaling information associated with a particular call or communication service, allows the received/transmitted signaling information to be processed independently of the originating or terminating c |
| 5509010 |
Communications signaling protocols |
April 16, 1996 |
| A modular suite of peer-to-peer protocols that are independent of communications network architecture supported, and the type of switching systems (packet-switched or circuit-switched), is used for a broadband and/or narrowband communications network. The protocols are comprised of c |
| 5473679 |
Signaling system for broadband communications networks |
December 5, 1995 |
| A network architecture is designed to allow a communications service subscriber to select a signaling provider independently of a) the transport carriers which control the local loops for particular communications services, and b) the providers of those services. Upon the establishme |
