Abstract: A method and system for providing a remote switching engine to monitor and control network traffic and utilizing appended word source address port mapping is provided. The system comprises a number of ports, at least one local switching device, at least one local forwarding database, and a remote switching processing device. The ports are provided for sending and receiving frames. The local switching device performs high-speed switching. The local forwarding database corresponds and couples to the local switching device, the database allowing the local switching device to look up a known address that has been previously obtained and forward the frames based on the known address. The remote switching processing device receives and processes frames from the local switching device(s). The local switching device(s) learns associations between Media Access Control (MAC) addresses and ports by having the local switching device forward unknown address frames to the remote switching processing device.

Abstract: A wireless network is provided that uses pseudo-static time slots. These time slots remain fixed in time unless and until a network controller specifically changes them and the network controller subsequently receives confirmation of the change. Times and durations of the pseudo-static time slots are only changed in small steps as each relevant device in the network acknowledges the step. To aid in allowing full coverage even during a change of active devices, when a transmitter and receiver are moved to a new time slot, the receiver is set to listen to both the old and the new time slots until the transmitter confirms that it has made the switch.

Abstract: A method for generating a ring map for a bi-directional line switched ring. The method includes identifying a change in a provisioned bi-directional line switched ring and generating a ring map for both directions in the ring at a node of the ring. The generated ring maps are compared to determine if the change in the ring is a result of a link failure or a node change and the node's ring map is updated if there was a node change in the ring.

Abstract: This invention relates to an IP processor, and more particularly, provides an IP processor that reduces network load when a plurality of IP processors connected to ATM switches are used in edge portion of an IP network. The IP processor is comprised of a line interface unit for interfacing with an ATM switch, an IP packet buffer unit for temporarily storing an IP packet from the line interface unit, and sending out the IP packet after address resolution to the line interface unit, and an IP address resolution unit that responds to address resolution request from the IP packet buffer unit and returns the destination address information after address resolution, wherein the IP packet buffer unit sends out, when destination address information cannot be retrieved from the IP address resolution unit, the temporarily stored IP packet to a transfer route for direct transfer between IP processors.

Abstract: Time division multiplexed input signals (i.e., separated into time slots) are spread in each time slot with a destination code. This spreading is applied for destination identification as opposed to signal information modulation. Each spreading signal is associated with a particular destination for a particular time slot. These spread signals are then combined on a code division bus. Output signals for retransmission to the destinations are recovered from the bus by application of despreading codes. Each despread signal has a destination code which appears in its individual time slot. In a variant code division multiplexed signals are directed to a destination by use of time slot interchanger to achieve time division switching to route the CDMA multiplexed channels.

Abstract: A method of providing an efficient channel structure for a communication system that uses codes to define its communication channels. Available codes form a code space that is equally divided into M tiers based on load conditions; M is an integer equal to 1 or greater. Information is scheduled to be transmitted during a particular time slot and is assigned to a particular tier. The information is transmitted during the scheduled time slot using all of the codes of the assigned tier.

Abstract: A method for The method for transmitting a message between a mobile communication system and at least a core network, the mobile communication system having a mobile station and a radio network, the method comprising the steps of: a) at the radio network, discriminating an operating type of a core network(s) coupled thereto; b) at the radio network, generating and transmitting a system information message having core network operating type information and information related to the core network; c) if two or more core networks are coupled to the asynchronous mobile communication system, at the mobile station, selecting one core network to be communicated with, based on the system information message; d) operating a call control entity and a mobility management entity according to an operating type of the selected core network; and e) communicating messages between the mobile station and the radio network, the message having a different data format according to the operating type of the selected core network.

Abstract: A next generation wireless data system and method for handoff from a node in a network is presented. The system includes a core network (CN) and a source and a target radio network subsystem (RNS). The interface between the RNSs is enhanced to reduce unnecessary relay of messaging through the CN and thus will reduce traversing delays as well as the resources utilized in message processing. Two separate methods are proposed for handing off the data traffic to the target RNS at the CN packet processing node. These methods are a multi-cast function that concurrently sends data to the source RNS and the target RNS, and a suspend/resume function which suspends the data flow towards the source RNS and resumes the flow towards the target RNS.

Abstract: The transmit power of a CDMA downlink channel is controlled from a base station by receiving a command signal from a mobile station requesting it to decrease the transmit power of the downlink channel. In response, the base station decreases the transmit power if a hypothetically decremented value of the transmit power is higher than a nominal lower limit of its power control range, and further decreases the transmit power if the downlink channel still has a quality higher than a specified value at the mobile station even when the hypothetically decremented value is lower than the nominal lower limit. The base station sets the transmit power equal to the nominal lower limit if the hypothetically decremented value is lower than the nominal lower limit and the downlink channel still has a quality higher than the specified value at the mobile station.

Abstract: In the non-node, the apparatus neither obtains a self physical_ID nor transmits a self_ID packet. Therefore, the apparatus is not recognized as a node in a self-identification phase. However, the apparatus transmits an indent_done signal received from a child node directly to a parent node. Moreover, when the apparatus becomes a route node in a tree identification phase in the non-node mode, after normal configuration, a PHY configuration packet output section outputs a PHY configuration packet for resetting an apparatus of another node as a route node. In a normal mode, the apparatus obtains a self phsycial_ID and transmits a self_ID packet. Therefore, the apparatus is recognized as a node in the self-identification phase.

Abstract: A time division duplex using code division multiple access base station receives a plurality of data signals in a time slot. Each data signal experiences a similar channel response. The base station receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based on in part the estimated channel response. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel response or channel correlation matrix. The spread data vector is despread to recover data from the matrix.

Abstract: A Generate QoSEthernet layer (118) is provided, interposed between an IP layer and a QoSEthernet layer (115). The Generate QoSEthernet layer (118) intercepts call commands, such as call setup commands, and identifies a required QoS for the particular call. The Generate QoSEthernet layer (118) then generates the QoS request commands required by the QoSEthernet layer (115).

Abstract: A method for assembling frames of a multiframe that calculates the value of an identifier for inclusion within each of the frames before the frames are transmitted at a transmitter clock rate. The amount of distinct values that the identifier can have is less than the amount of frames within the multiframe. This identifier is extracted from the frames in a receiver, and is used for determining a position in a temporary buffer having an amount of memory locations that is smaller than the amount of frames within the multiframe. The frames are read from positions in the temporary buffer for storage into subsequent locations into a multiframe buffer memory, irrespective of the value of the identifier. The receiver clock is synchronized with the transmitter clock.

Abstract: A multi-point communications system joins a series of communications units in a series chain while providing communications between and among all of the units. Each communication unit comprises a pair of frames, preferably operating under E1/T1 protocols connected in a back-to-back arrangement through the framers' local serial busses. Communication data is placed on and extracted from a designated set of channels on the serial busses while preamble data, controlling the passage and routing of the communications data, is placed on a separate set of bus channels. One of the interconnected communications units is designated as the “parent”, and provides supervisory control over communications data, timing and flow. Designation of the parent unit may be performed on a dynamic basis to allow the communications system to dynamically adapt to changes in system size as communications units are added or dropped.

Abstract: A system and method are directed to providing a Mobile Edge Service (MES) in a mobile network. An apparatus configured to enable a smart Gateway General Packet Radio Service (GPRS) Support Node (GGSN) to communicate with an MES application layer such that a service provider may provide a content delivery service, a network service, and an application service to an subscriber. The apparatus is also directed to enabling an interaction between components in the smart GGSN by providing a protocol stack that includes control, data, and management interface.

Abstract: A combined signal is received over a shared spectrum in a time slot in a time division duplex communication system using code division multiple access. Each data signal experiences a similar channel response. The similar channel response is estimated. A matrix representing a channel of the data signals based on in part the estimated channel response is constructed. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel matrix. The spread data vector is despread to recover data from the received combined signal.

Abstract: The invention is related to structures used for providing fault tolerance in computer data networks. According to the invention, fault tolerance is achieved by redundancy, i.e. by using at least two network nodes in parallel. The network nodes have at least two physical network interface to a network, only one of which is active during normal operation. In the case of two network nodes being used, both of these have two physical network interfaces to the same network. A first network interfaces on the first node has the same IP and MAC address as one interface on the second node, and the second network interface on the first node has the same IP and MAC address as the other interface on the second node. The IP and MAC addresses of the two interfaces of each node are different, whereby the two nodes provide a first IP address and a corresponding first MAC address, and a second IP address and a corresponding second MAC address.

Abstract: To detect network faults or congestion of traffic at an interface of a gateway system for connecting an IP network and a telephone network on the side of the IP network and to allow the IP network to control alternative routing at the telephone network, network faults and congestion of traffic on the side of the IP network are monitored by the gateway system having an interface function between the telephone network and the IP network. When a network fault or congestion of traffic is detected, the gateway system notifies the telephone network upstream thereof of the disabled line and instructs the same to perform alternative routing, which makes it possible to prevent the occurrence of a situation in which the quality of communication at the interface between the telephone network and IP network can not be maintained.

Abstract: A time division duplex using code division multiple access user equipment receives a plurality of data signals in a time slot. Each data signal experiences a similar channel response. The user equipment receives a combined signal over the shared spectrum in a time slot. The combined signal comprises the plurality of data signals. The combined signal is sampled at a multiple of a chip rate of the combined signal. The similar channel response is estimated. A channel response matrix or a channel correlation matrix is constructed based on in part the estimated channel response. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel response or channel correlation matrix. The spread data vector is despread to recover data from the matrix.

Abstract: A decision engine decides whether to assign a service line to be active or in standby mode with a very simple decision logic that is based on a comparison between two numbers that are created through the setting of bits in two registers. The logic of the decision engine is embedded in a combination of a filter that either accepts or rejected applied stimuli, and a table that acts on accepted stimuli by the setting and resetting of bits in the two registers in accordance with a unique specification.