Abstract: A method, apparatus, and system are provided for multi-link extensions and bundle skew management. According to one embodiment, multiple parallel links between a central processing unit (CPU) and a peripheral device are combined into a single channel, and cells on the various links are received in a round-robin order, and variations in flight time between the various links are compensated through a timer at each receive port of the bundle.

Abstract: A channel configuration of a digital mobile system comprises two or more lower-rate transmission channels for each high-speed radio interface traffic channel at the network interface between a base station and an interworking function. Radio frames, such as EDGE frames, are transferred on a radio interface traffic channel. Transmission frames, such as TRAU frames, are transferred on transmission channels. The total data rate at the network interface is greater than the data rate at the radio interface. According to the invention, the total data rates of the network interface and the radio interface are rate-adapted by transferring fill data in transmission frames in addition to payload between the base station and the interworking function, such that the average data rate of the payload at the network interface corresponds to the total data rate at the radio interface, and the combined total data rate of the fill data and the payload corresponds to the total data rate at the network interface.

Abstract: Multiplier 103 calculates the correlation value of the received signal with the one-symbol-delayed received signal, integrator 104 integrates the calculated correlation value, subtracter 105 executes subtract processing between the integrated value and an arbitrary threshold level, and decider 106 decides a level of the resultant, fastest timing detection section 107 compares the peak detected timing for each of a plurality of frames received during a predetermined time to each other to select the fastest peak detected timing, and using the selected timing as a processing initiation timing, FFT circuit 108 executes FFT processing on the received signal.

Abstract: The invention relates to a system and a method for implementing ISDN user port status monitoring in a network element transmitting messages in a cascaded V5 interface. In an embodiment of the invention, ISDN user port activation messages are transmitted unaltered through the message transmitting network element when the current state of the ports is other than the BLOCKED state consistent with the V5 definitions.

Abstract: The present invention is directed to a system and method for minimizing signal distortion in a discrete multi-tone communications system that is being used in both the POTS and the ADSL frequency bands. Broadly, the system and method of the present invention are realized by a digital signal processor that is configured to insert a probe signal into the upstream channels of the communication system, measure the resulting signal distortion in the downstream channels, and adjust the upstream signal power to minimize system signal distortion due to the upstream data transmission. The system and method further estimates the POTS band signal distortion based on the measured distortion at the higher frequencies, and adjusts the output signal power at the central office equipment to minimize signal distortion at the customer premises.

Abstract: Mobile terminal handoff control is provided for point to multipoint (PMP) connections in Mobile ATM networks. Special issues for the handoff control in all three types of PMP connections are taken care of, including cross over switch discovery and handoff path re-routing. A protocol for a PMP connections signaling mechanism is presented, which works with all three types of PMP connections and has a lossless control function. The PMP connection tree topology is protected.

Abstract: An improved architecture in a circuit switched communications network is provided in which a plurality of network service provider devices, eg intelligent peripherals are arranged to provide network service data to a plurality of time division multiplex circuits and trunks by converting these circuits and trunks to streams of packets, and providing network service data packetized in a set of network service data packet streams to the circuit packet streams without incurring delays to the circuit packet streams. The circuit packet streams may be duplicated and forwarded to the network service provider devices without incurring delay to the ongoing through put packetized circuits, and similarly packet streams containing network service data may be superimposed into the circuit packet streams, without the requirement for the circuit packet streams to be switched to the network service provider devices.

Abstract: A method for automatically provisioning a broadband communication service to a subscriber having a broadband modem. The method includes the step of transmitting a service request from the broadband modem to a central office, which is associated with a network service provider. The network is configured for service in response to the service request. The method further includes automatically configuring the broadband modem by transmitting a configuration signal from the central office to the subscriber. The configuration signal may be transmitted to the broadband modem over a POTS subchannel. Alternatively, the configuration signal may be transmitted to the broadband modem over a subchannel in a broadband service, such as a DMT subchannel for ADSL service.

Abstract: An information cell transmission method includes receiving flow control cells at a switch from a collection of multicast virtual circuits and aggregating the flow control cells to form an aggregate flow control cell. A network switch includes first and second port circuitry and control circuitry. The first port circuitry is operative to exchange flow control cells on a collection of multicast virtual circuits coupling the switch to destination nodes. The second port circuitry is operative to exchange flow control cells on another virtual circuit that couples the switch to a source node. The control circuitry is operatively couples the collection of multicast virtual circuits to the source virtual circuit via the first and second port circuitry.

Abstract: A system and method for correlating messages from A interface links is disclosed. When an initial connection message for a new call connection is detected, a new anchor record and call record are created to capture messages for that call. When an initial handover connection is detected, a handover pending record is created to collect messages related to the handover connection. When either a handover-from or handover-to connection is detected, a handover connection reference record is sent to a rendezvous processor. Handover-to and handover-from connection reference records are correlated in the rendezvous processor by matching data keyed to the specific handover event. Once a handover pending record is paired to an existing anchor record, the handover pending record is converted to a routing record to route messages to the anchor record.

Abstract: A novel N×N Crossbar Packet Switch is disclosed, which crossbar switch is based on a distributed port architecture, asynchronous output port arbitration, support of non fixed-size packets (cells), support for virtual channels (VC) and/or priority, and which only requires 2*N*N control lines for the arbitration.

Abstract: Provided is a 10Base-T MAC to PHY interface requiring only two wires (pins) per port, with two additional global wires: a clock wire (pin), and a synchronization wire (pin). This reduction in the number of pins associated with each port is achieved by time-division multiplexing wherein each time-division multiplexed wire combines a plurality of definitions from the conventional seven-wire interface. As a result, each port has its own pair of associated time-division multiplexed wires (pins) and the addition of each port simply requires two additional wires. According to a preferred embodiment of the present invention, information normally transferred on nine wires in a conventional seven-wire interface at 10 MHz is time-division multiplexed onto two wires (corresponding to two pins) that transfer data at 40 MHz, four times the speed of conventional interfaces. Importantly, this multiplexing is done on a port by port basis.

Abstract: A method and apparatus facilitates and enhances the operation of the spanning tree protocol in bridged computer networks. An intermediate network device in accordance with the present invention includes an enhanced spanning tree engine that is configured to perform certain novel functions. First, the enhanced spanning tree engine is configured to identify and block ports at which messages are looped-back to the transmitting port, thereby avoiding the creation of network loops. In second aspect, the enhanced spanning tree engine rapidly transitions certain ports to a forwarding state to prevent associated applications from timing out and shutting down. Rather than moving the ports through blocking, listening and learning states before reaching the forwarding state, selected ports may be transitioned directly to the forwarding state.

Abstract: In a communication system including plural communication apparatuses that communicate each other using a single communication path, the state of the communication path is detected for communication. If the communication path is busy, a first control method is performed for controlling access to the communication path using a back off time selected at random. A second control method secures the communication path by transmitting and receiving the predetermined signal at transmission of a signal so as to control access to the communication path. In accordance with the kind of the signal to be transmitted, the first or the second control method is selected for communication. Thus, plural communication apparatuses can perform efficient communication.

Abstract: A wireless communication system and a mobile station employ at least one threshold to evaluate the quality of transmissions from a serving base station to determine when the mobile station enters a Dead Zone adjacent a border cell of the system. Such thresholds not only consider the ratio of carrier energy (Ec) to interference (Ec/Io) but also consider the energy of the carrier itself. When the relevant measured (or calculated) carrier energy Ec and/or carrier energy to interference ratio Ec/Io are passed, the mobile station performs system reselection, attempting to acquire a different system/carrier. The thresholds employed may be passed from the base station to the mobile station in the System Parameters message, for example.

Abstract: An aggregate link system is provided with cooperating link aggregation member devices defining a link aggregation. An end device is provided. Network links connect the end device to each of the link aggregation member devices. One or more of the network links define an aggregate link. A coordinating system is provided between the link aggregation member devices in the link aggregation of cooperating devices. The coordinating system is defined by the end device and the network links. The coordinating system determines a packet type received from the link aggregation. If the packet is one of predetermined packet types, the coordinating system either sends the packet back to the originating link aggregation member device or to the other link aggregation member devices.

Abstract: An Internet call connection method comprises the steps of (a) an Internet Telephony Server (ITS) receiving a dialed special services number of an originated call; (b) mapping the dialed special services number to a destination number and a Internet Protocol (IP) address of a terminating ITS that serves the destination number; and (c) routing the originated call from an originating ITS to a terminating ITS and to the destination number to complete the call. The ITS apparatus includes (1) an interface for receiving a dialed special services number over a trunk connected to the ITS; (2) accessing means for accessing a mapping database using the dialed special services number to obtain a destination number and a terminating Internet Protocol address; and (3) a call router for routing the call and the destination number to a terminating ITS identified by the terminating Internet Protocol address.

Abstract: A switch, switched architecture and process for transferring data through an FCAL switch is disclosed. The switch uses multiple switch control circuits each coupled to one FCAL [net]work and all connected to a crossbar switch. The switch control circuits are coupled together by a protocol bus for coordination purposes. Local conversations can occur on each FCAL loop and crossing conversations through the switch can occur concurrently. The OPN primitive is used to establish the connection before any data is transferred thereby eliminating the need for buffer memory in the switch control circuits. The destination address of each OPN is used to address a lookup table in each switch control circuit to determine if the destination node is local. If not, the destination is looked up and a connection request made on the protocol bus. If the remote port is not busy, it sends a reply which causes both ports to establish a data path through the backplane crossbar switch.

Abstract: A set-up scheme for a cut-through connection in a network system capable of realizing a high throughput, low latency internetwork communication efficiently under an internet environment. A network node checks source/destination information of the transport layer and/or a source/destination information of the network layer of a received packet, and if the checked information satisfies a prescribed condition, determines the packet to be a trigger. Then, the network node instructs another node capable of initiating a set-up operation, which may be the network node itself, to initiate the set-up of the cut-through connection for traffic corresponding to the trigger packet.

Abstract: A telecommunications device includes a backplane having an associated high availability backplane environment. A transition card coupled to the backplane helps transition a standards-based card supporting a Peripheral Component Interconnect (PCI) administrative bus into the high availability backplane environment. The transition card may also help transition either a Computer Telephony or a Serial Telephony serial data bus into the high availability backplane environment. In a more particular embodiment, the transition card may support a control bus, a synchronization bus, a reset bus, an isolate bus, and a power bus that each support at least one high availability characteristic not associated with the PCI bus. In another more particular embodiment, the transition card may provide at least some redundancy, hot insertion, fault detection, fault isolation, and fault recovery capabilities not associated with the PCI bus.