Abstract: Disclosed is a technique which can share single public Internet protocol without a network address translation when a plurality of computers use the Internet through an Internet access gateway.

Abstract: A method and system for adaptive point to multipoint wireless communication. The method and system integrate adaptive and dynamic responsiveness for communication parameters related to multiple characteristics of wireless communication links, both for a single sender and a single receiver, and for sets of multiple senders and multiple receivers. Moreover, the method and system are self-optimizing in the sense that they are adaptively and dynamically responsive to results of attempts to optimize parameters related to multiple characteristics of wireless communication links. Multiple characteristics of wireless communication links are optimized simultaneously, in that the optimal set of values for a plurality of N characteristics, rather fan N individual optimal values for each characteristic, is adaptively and dynamically selected.

Abstract: One embodiment disclosed relates to a method of load balancing traffic in a switching mesh. A packet is received at a switch of the mesh. A MAC destination address is gathered from the packet. An entry in a MAC address table is found with the MAC destination address, and a switch identifier associated with the MAC destination address is obtained. An entry in a switch table is found with the switch identifier, and data associated with the switch identifier is obtained. A hash function is used on field data from the packet to generate a hash value, and the hash value and the associated data are used to generate an index value. An entry in the tag table is found with the index value, and a path tag associated with the index value is obtained. The path tag is inserted into the packet. The path tags may be weighted.

Abstract: A correlation memory section 105 stores a prescribed table in which each control data is grouped for each kind of it (for each message unit) to be correlated to each other. A control data synchronization section 104 successively accumulates input control data into a control data accumulation section 106. At this time, the control data synchronization section 104 refers a table stored in the correlation memory section 105 to correlate a plurality of control data for each group for accumulating the control data. By such operation, a plurality of control data are multiplexed for each group, and the control data are handled by the group as one data. Then, a control data processing section 107 generates multiplexed control data that are multiplexed for each group as one packet, and the control data processing section 107 transmits the generated packet to a communicating party.

Abstract: A mobile communication system includes a base station and a mobile station. The base station includes a transmitting/receiving section that transmits/receives a packet to/from the mobile station. The base station also includes a base station state updating section that notifies the mobile station of transmission/reception state update information that indicates update of a packet receivable state in the mobile station. The mobile station includes a mobile station transmitting/receiving section that transmits/receives the packet to/from the base station. The mobile station also includes a mobile station state updating section that sets, on the basis of the transmission/reception state update information, one of an active state in which the control information for packet transmission can be received and a suspend state in which the control information for packet transmission cannot be received.

Abstract: An apparatus for transferring data in a telecommunications network. The apparatus includes a memory in which a packet memory length is stored. The apparatus includes a mechanism for determining a link length for the packet that will be sent into the network based on the memory length and at least one parameter, where the link length correctly corresponds to the packet's physical line bandwidth usage in the network. The apparatus includes a mechanism for sending the packet having the link length to the network. A method for transferring data in a telecommunications network. The method includes the steps of storing in a memory a memory length of a packet. There is the step of determining a link length for the packet that will be sent into the network based on the memory length and at least one parameter, where the link length correctly corresponds to the packet's physical line bandwidth usage in the network There is the step of sending the packet having the link length to the network.

Abstract: In a switch with multiple physical links to a destination, data is forwarded to the destination by distributing received data across the physical links. A flow hash is selected for the received data's data flow dependent on a destination address and source address included in the received data. The flow hash selects one of the physical links to the destination for a data flow but potentially a different physical link for a different data flow, thereby forwarding the received data by distributing the received data across the physical links while maintaining frame ordering within a data flow.

Abstract: An Integrated, Self-Optimizing, Multi-Parameter/Multi-Variable Point-to-Multipoint Communication System provides integrated adaptive and dynamic responsiveness for communication parameters related to multiple characteristics of wireless communication links for a single sender, a single receiver, and for sets of multiple senders and multiple receivers. The method and system are self-optimizing and adaptively and dynamically respond to results of attempts to optimize parameters related to multiple characteristics of wireless communication links. Multiple characteristics of wireless communication links are optimized simultaneously, in that the optimal set of values for a plurality of N characteristics, rather than N individual optimal values for each characteristic, is adaptively and dynamically selected. A wireless PHY layer and wireless MAC layer collectively include a set of communication parameters, which are adaptively modified by a BSC for communication with a plurality of CPE.

Abstract: A frame format provides for wideband wireless local area network communications and informs narrower-band communication units when the channels are occupied by wider-band communication units. In some embodiments, the frame format includes a channelization field identifying channels that are used for communicating subsequent wideband fields of a packet, and a wideband-header field communicated on the identified channels. The wideband-header field may identify sub-fields that may be present in the wideband-header field, and may identify the presence of a wideband-data field. A long-compatibility field may be present that provides protection at the MAC level. The long-compatibility field may transport MAC frames that may include medium-reservation information compatible with narrower-band communication units.

Abstract: A controller of a communications network enables endpoints or multiple networks to intercommunicate using multiple types of bearer format (IP, TDM, ATM, Frame Relay, etc.), and enables a bearer format conversion when necessary to carry bearer channel information across an interface of the network. The network may be packet-based or circuit-based and may include gateways and associated controllers which work in tandem to transfer format conversion parameters between endpoints or networks. The format control parameters are exchanged between various controllers, i.e., call control elements, to determine the appropriate format to forward the bearer channel information across the interface and to instruct the associated gateway of the required format conversion. The determination of the necessary format conversions may occur on a call-by-call basis, or by periodically detecting and storing format conversions associated with the various endpoints and intercommunicating networks.

Abstract: An interconnect device (e.g., a switch) includes a port operably coupled to a packet broadcaster for routing unicast and/or multicast packets of data in packet-based input/output communications. For an inbound packet, at least two combinations of a source port and one or more destination ports, and one or more destination paths associated with each of said one or more destination ports may be determined by the packet broadcaster in a single lookup of a memory (e.g., a random access memory).

Abstract: A communication equipment comprises a reception/transmission unit configured to notify a target equipment of a plurality of addresses provided for the communication equipment, acquire a plurality of target equipment addresses provided for the target equipment, from the target equipment, and perform packet reception/transmission using a plurality of provided addresses and a plurality of acquired target equipment addresses; and a controller configured to select the target equipment address to be used by the reception/transmission unit, and control the reception/transmission unit to perform the packet reception/transmission using a selected target equipment address.

Abstract: A packet transfer apparatus connected to an internal subnetwork formed by a set of broadcast segments each accommodating terminals and for transferring, when a MAC frame including a IP address which designates a destination terminal connected to one of the segments is received from a terminal connected to another segment in the internal subnetwork, an IP packet in the MAC frame to the segment connected to the destination terminal in accordance with a terminal management table which indicates a relation of address information of each of the terminals belonging to the internal subnetwork and the segment to which the terminal is connected.

Abstract: E-mail to which difference moving picture data is attached is transmitted from a mobile telephone for displaying difference moving pictures to a mail server. The mail server separates the difference moving picture data from the e-mail and transmits it to a moving picture converting server. The moving picture converting server converts the difference moving picture data to complete moving picture data and stores the complete moving picture data in a database. A URL link indicating the storage location in the database is generated by the mail server and transmitted to a mobile telephone for displaying complete moving pictures.

Abstract: An example receiving apparatus includes a reception clock controlling section for controlling clock supply to the components thereof. A reception section receives a communication packet transmitted from a destination and a received packet analyzing section judges whether or not the received packet is correct and analyzing the received packet. A reception memory section stores the received packet of any packet type and a reception registering section stores the received packet until a clock is supplied to the reception memory section. A received data outputting section outputs the received packet stored in the reception registering section and the reception memory section to a host CPU.

Abstract: An apparatus, program product and method bridge an isolated network such as a virtual network to an external network such as another virtual network or physical network by utilizing a network adapter on the other network that is assigned the same Media Access Control (MAC) address as an isolated network adapter on the isolated network.

Abstract: In a communications network, which may be a federated network such as the Internet, a tariff is distributed via the network to customer terminals. At each terminal a charge for use of the network is calculated by using the tariff. Different tariffs may be communicated for different services and a respective tariff may be varied depending upon the operational condition of the service. Different tariffs may be calculated for different customers and the tariffs may be varied in dependence upon the loading of network resources and different tariffs may have different volatilities. Part of the traffic from a user to the network may be sampled and the status of the user may be amended when a discrepancy is detected between the sampled parameters and the contracted parameters in the users contract.

Abstract: Path determination constraints may be encoded in the form of a program having one or more instructions. Each of instructions may include an operation code, and operands (or pointers to locations where operands are stored). In this way, an extensible, interoperable way for a nodes (e.g., label-switching routers) to communicate constraints within a network is provided. Such constraints may be inserted (e.g., as one or more CONSTRAINT objects) into signaling messages (e.g., a PATH RSVP message). By enabling the signaling of constraints, the determination of constraint-based (label-switched) paths can be distributed among a number of (label-switching) routers or other nodes. Upon receiving a message with constraints (e.g.

Abstract: The present invention relates to a communicating data system comprising devices (11, 12, 13, 14) for routing said data that are interconnected by communication links, the data being transmitted in packets and a packet comprising a header. A transmitting part of a first routing device (12) comprises first storage means suitable for storing a value of at least one parameter from said header and for transmitting a coded value corresponding thereto, and first entropy coding compression means which are suitable for recoding the uncoded value, the recoded value being stored instead of the coded value after the latter is transmitted along a communication link (15).

Abstract: A packet receiver is provided that accurately estimates a frequency offset and a channel impulse response even when a transmitted packet is detected with an erroneous timing in a communication mode (typified by the LAN (local Area Network)) where packets are asynchronously transmitted, and thus provides a training sequence which can demodulate the received packet. The training sequence 101 is formed of K sequences 100-1 to 100-K serially connected, each formed of the same N symbols. Even in a channel where a intersymbol interference occurs when such a training sequence is used, a received signal shifted by the time corresponding to N-symbols becomes the signal which is different by a phase difference caused by a frequency offset between the transmitter and the receiver. Thus, even if the head of a packet is detected with an erroneous timing, the frequency offset can be estimated.