Abstract: A communication control apparatus is adaptive to changes in a wireless communication environment to control transmission timing and path reciprocally between network nodes to thereby avoid transmission collisions and congestions. A transmission timing control calculator contends with other nodes for a band to transmit a data signal to control a transmission timing of its own node. A path control calculator determines transmission paths for transmitting data signals within the bandwidth for the own node obtained by the transmission timing control calculator. A data signal transmitter transmits a data signal to a destination node on each transmission path determined by the path control calculator. The transmission timing control calculator and the path control calculator provide each other with state information on processing, and use the provided state information as a constraint condition to control the bands of the own node and of links between the own and destination nodes.

Abstract: In a packet communication system with large bandwidth delay product (BDP) and employing Transmission Control Protocol (TCP), the reported advertised window size as advertised by a receiver is employed only as an indication of window size and not as a throughput limit so that more data is sent than the amount specified by the advertised window size. Since the receiver can process all incoming TCP packets, the receiving buffer is consistently near empty. Since the TCP's advertised window size is not accepted as the absolute amount of buffer space available at the receiver, the sender is not constrained by the absolute value of the receiver's advertised window size and instead can transmit more data than the absolute value of the advertised window, enabling the system to increase the actual window size without modifying the link ends. This improved large-BDP-capable protocol is denoted TCP-SC.

Abstract: A packet network node and method of operating a packet network node are disclosed. Conventional packet network nodes react to congestion in the packet network by dropping packets in a manner which is perceived by users to be indiscriminate. In embodiments of the present invention, indiscriminate packet discards are prevented by causing packets to be discarded on lower priority flows and flow aggregates. A further action is taken to reduce the likelihood of packet discards. When an aggregate set of flows raises a congestion alarm action is taken to try to increase the capacity of the aggregate through taking capacity from pre-assigned donor aggregates. A donor aggregate may be carrying flows, for example flows classified as best effort. Another type of donor capacity is donor re-assignable unused capacity.

Abstract: Method of efficiently allocating a downlink channel from a transmitter (1) to one user selected from a plurality of users (30-1, 30-2, . . . 30-N) in a wireless network providing different service applications to said users (30-1, 30-2, . . . 30-N), which comprises the steps of: at a DLC queue (221) of said transmitter (1), ranking (21, 220) a plurality of M application layer packets to be transmitted to said plurality of users (30-1, 30-2, . . . 30-N), said ranking being based on a quality of service demand associated to each application layer packet, said quality of service demands being in turn associated to respective classes of applications (C1, C2, C3, C4), said DLC queue (221) having length M, M being a natural number, said M packets corresponding to P users of said plurality of users (30-1, 30-2, . . . 30-N), wherein P?M.

Abstract: According to particular embodiments, determining disjoint paths includes receiving a graph representing a network comprising nodes and links. The graph is transformed such that the number of intermediate nodes of a path indicates the number of regenerators for the path. A set of seed paths from a source node to a destination node of the transformed graph is generated. For each seed path, a shortest path from the source node to the destination node is determined to yield one or more pairs of disjoint paths from the source node to the destination node. An optimized pair of disjoint paths is selected, where the optimized pair of disjoint paths has an optimized number of regenerators.

Abstract: Methods, devices, and systems are provided for marking one or more entities of a call as internal/external such that certain call features can be invoked by servers and other devices residing behind a gateway. More specifically, entities of a call can be marked as internal/external based employing an assessment algorithm to determine whether the calling endpoint is an internal or external endpoint and/or whether a user of the calling or answering endpoint is an internal or external user. Once this determination is made, the call can be marked accordingly such that the appropriate features can be invoked.

Abstract: An apparatus for monitoring of received information in a communication device comprises a first buffer having a plurality of storage elements adapted to store respective portions of the received information, a second buffer coupled to the first buffer and having a plurality of storage elements corresponding to respective ones of the storage elements of the first buffer, and controller circuitry coupled to the buffers and operative to detect a message sequence comprising a plurality of the portions of the received information. The second buffer stores a previously-detected message sequence loaded from the first buffer into the second buffer under control of the controller circuitry. The controller circuitry in detecting a current message sequence is configurable in at least first and second different monitoring modes each associated with a different message format. The monitoring mode of the controller circuitry may be adaptively configured based at least in part on a detected message sequence.

Abstract: Method and apparatus for validating location information associated with an access point (AP) in a wireless local area network (WLAN) by subjecting neighborhood node proximity information retrieved from an AP and neighborhood node location information retrieved from a database to a likelihood ratio tests (LRT). The neighborhood node proximity information retrieved from an AP comprises a list of nodes exhibiting at the AP a signal strength above a threshold level T, or link quality information associated with those nodes having a signal received by the AP.

Abstract: A user terminal device includes: an antenna module, comprising a plurality of directional antennas and adapted to access a network through one or more directional antennas of the plurality of antennas; a processor, adapted to set the directions of the directional antennas, and select one directional antenna or a combination of multiple directional antennas of the plurality of antennas to access the network according to the performance parameters of each antenna.

Abstract: The invention is directed to a method and apparatus for providing improved packet over timing clock synchronization in a packet switching network using Operations, Administration, and Maintenance (OAM) tools to compensate for asymmetrical characteristics between forward and reverse data paths.

Abstract: A method comprises (a) detecting a packet loss in a partial data packet stream in a peer-to-peer network; (b) signaling an indication of lost packets to one or more sending peers serving the partial data packet stream corresponding to the packet loss; (c) after expiration of a threshold period of time without receiving lost packets, signaling one or more candidate peers a request for retransmission of the lost packets, the candidate peers being peers not serving the partial data packet stream; and (d) receiving the lost packets through one of the candidate peers.

Abstract: Various embodiments include one or more of systems, methods, and software for self-governance of network entity timeout periods in network management. Some embodiments include sending at least one message to a network entity, receiving a response, and measuring a period between the sending and receiving. Some such embodiments further include calculating a timeout period for the network entity as a function of the measured period between the sending and the receiving and storing the calculated timeout period for the network entity. The timeout period for the network entity is a period after the passage of which a network management system declares contact has been lost with the network entity.

Abstract: A method for scheduling a wireless communication entity (103) based on channel quality information provided by the wireless entity, wherein scheduling is discontinued if channel quality information is not received from the wireless communication entity over a specified number of frames or if the channel quality information provided is insufficient to support a control channel. The wireless entity may discontinue reporting channel quality information if the channel quality measured over a specified number of frames is below a threshold. Scheduling may be discontinued by blocking, or removing or preempting the scheduling of the wireless entity.

Abstract: A method provides service quality in a WiMAX communication network, and a method selects an access transport resource control function by a guideline decision-making function in a communication network. According to a method for providing service quality on an air interface of an access network in a WiMAX communication network by an application function, the application function aims to provide a user of the WiMAX communication network with a service quality-related application. The desired service quality is signaled by an authentication, authorization and accounting infrastructure of the WiMAX communication network.

Abstract: Embodiments disclose a method that may be used for diagnosing, for example, Voice over Internet Protocol (VoIP) sessions. The method may include establishing a first streaming session between a first telephone and a server using session control messages and establishing a second streaming session between the first telephone and a second telephone using session control messages. The method may further include transmitting or receiving data packets using the second streaming session, wherein the data packets carry voice or video data between the first and second telephones. The method may further include echoing the session control messages used to establish the second streaming session or the data packets carrying the voice or video data to the server using the first streaming session.

Abstract: Embodiments of a wireless device and method for channel access are generally described herein. In some embodiments, the wireless device is configured to measure channel quality and set a backoff delay for channel access based on the channel quality. Shorter backoff delays are set for better channel quality and longer backoff delays are set for poorer channel quality.

Abstract: Techniques for reducing beacon interference include identifying a mobile device located within a coverage area serviced by a first access point, determining a power of a signal transmitted by a mobile device to a second access point; and modifying the beacon to reduce interference.

Abstract: Method and apparatus using incremental linear regression to derive a traffic flow signature indicative of a particular application within a packet stream.

Abstract: Various example embodiments are disclosed relating to feedback and link adaptation techniques for wireless networks. According to an example embodiment, an apparatus may include a processor or controller. The controller may be configured to determine a channel quality indication (CQI) value for each of a plurality of wireless sub-channels, discard any of the CQI values older than a threshold time, leaving a set of current CQI values, determine a percentile CQI value based on the set of current CQI values, and transmit the percentile CQI value to an infrastructure node. The infrastructure node, may, for example, determine or select one or more data transmission parameters, such as a modulation scheme and/or coding rate, based at least in part on the received percentile CQI value.

Abstract: The present invention relates to wireless communication systems, and more particularly to a method and an apparatus for periodically reporting the buffer status in a wireless communication system. Methods and arrangements for an improved buffer status reporting taking the type of radio bearer configuration into account is provided. This is achieved according to an embodiment of the present invention by taking the type of radio bearer configuration into account when determining the content of the buffer status report sent by the UE to the eNodeB.

Abstract: A mobile station is applied to a mobile radio communication system including a transmission control function. The mobile station includes a determining unit to determine a gradient, on data to be uploaded which is input from an upper layer and transmitted through an uplink data channel in a direction toward a base transceiver station, based on a relation in chronological change of transmission data amount per predetermined time; a judging unit to judge that, when detecting that the gradient has become smaller than a predetermined threshold value, the transmission data amount is decreased; and an instructing unit to instruct a lower layer, in a state where Happy bit information transmitted through an uplink control channel continuously takes a first value for requesting an increase of a transmission power, to change the first value to a second value for maintaining or decreasing the transmission power.

Abstract: A plurality of wireless communication methods are combined, networks to be used are dynamically selected by evaluating each network quality, and a packet format is changed adaptively to realize necessary reliability. The wireless communication apparatus has a network interface, a data interface, a quality interface, an allocation control part, a quality database, a quality update part, communication units and antennas. The wireless communication apparatus receives data and a requested quality from an application apparatus, selects the communication unit and communication method suitable for the requested quality, and transmits the data and requested quality. The communication unit receives a communication quality of the communication partner, and the quality update part updates the communication quality state in the quality database.

Abstract: A method is provided of obtaining information representative of an availability of a communications network, which includes a plurality of equipment exchanging routing data in accordance with a routing protocol. The method includes a stage of storing in chronological order at least some of the routing data exchanged between at least one first equipment and at least one second equipment; a stage of totaling unavailability times as a function of the routing data stored in chronological order for a predetermined time period; a stage of obtaining the information representative of an availability for the time period as a function of the totaled unavailability times.

Abstract: A circuit of a node in a radio network and method for transit time measurement between a first node and a second node of a radio network is provided. A frame is transmitted by the first node, wherein the frame requires an acknowledgment of reception by the second node. A first point in time of the transmission of the frame is established by the first node by a time counter. The frame is received by the second node at a second point in time. The acknowledgment is transmitted by the second node to the first node at a third point in time, wherein the third point in time depends on the second point in time by a predetermined time interval between the second point in time and the third point in time. A fourth point in time is established by the first node by the time counter when the acknowledgment is received.

Abstract: A method is provided for detecting interactions between call-related and web-enabled features. In some embodiments, communication application components are configured to transmit an indication to a feature interaction detector every time a feature is invoked by the user. When the interaction detector receives an indication that a feature is being invoked, it compares the invoked feature against features that have previously been invoked (or executed) and determines whether the invoked feature interacts with any of the features that have been previously executed.

Abstract: A buffer for managing the order of data packages arriving at the buffer, wherein the buffer includes a first window, having a predetermined size defined by a first and a second extreme, and the first window is included within a second window. The buffer includes a filter for determining the time stamp of an arriving data package to determine if the arriving data package has an expected location included inside or outside the first window based on the time stamp. The buffer also includes a buffer module for locating the arriving data package in the expected location or for moving the first window by a predetermined distance to a position, without changing the size of the first window, to accommodate the expected location.

Abstract: A method and device for sending a scheduling request (SR) signal are used for a user equipment (UE) in a long term evolution system to send an uplink signal to a base station.

Abstract: A method for adapting quality of service to dynamics of a wireless telecommunications network is provided. The method includes collecting data relating to operation of an element in the network, wherein the collected data comprises radio-frequency (RF) data relating to operation of the network. The method also includes pre-calculating, from the collected data, a dynamic operational characteristic of the network, wherein the pre-calculating includes pre-calculating from the collected data to obtain a geometrical determination based on a geographical location of a wireless communications device within the network.

Abstract: A process and machine for estimating the location of a wireless terminal is disclosed. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. In accordance with a first example, if a particular radio station is known to be received well at a first location and poorly at a second location, and a given wireless terminal at an unknown location is receiving the radio station poorly, it is more likely that the wireless terminal is at the second location than it is at the first location.

Abstract: A method, apparatus, and computer-readable storage medium for generating a mobile flow record for a mobile flow of a mobile node are provided. A method includes receiving information associated with signaling traffic of the mobile node, receiving information associated with bearer traffic of the mobile node, and generating the mobile flow record by correlating the information associated with signaling traffic of the mobile node and the information associated with bearer traffic of the mobile node. The mobile flow record includes IP layer information associated with the mobile flow and wireless layer information associated with the mobile flow.

Abstract: In a flow information collection apparatus, flow information, which is sampled based on a predetermined sampling value, is periodically collected and accumulated from a router being a subject. A group of distributions of values is specified for each measurement subject from data in which the values for the each measurement subject in the flow information accumulated are distributed in a time period in a plurality of past days. A representative group is specified from the specified group and an average is acquired. The sampling value for next time is determined from the average of the representative group.

Abstract: A method and apparatus for link aggregation in a data communications network. A dual-layer link aggregation is formed, including two peer nodes, each connected to at least a third node. The dual-layer link aggregation is formed of a peer link aggregation of ports for communicating with a peer node, distant link aggregation of ports for communicating with a third node, and an outer-layer link aggregation of the ports included in the peer link aggregation and the distant link aggregation. The third node may implement an inter-node link aggregation aggregating links to each of the peer nodes. Packets may be received and forwarded by the peer nodes in such a manner as to each link aggregation to be active simultaneously.

Abstract: An apparatus and a method effectively adds and deletes a relay link in a communication system that includes a multiple relay system. The apparatus and method include determining by a relay mode controller whether to add or delete the relay link with consideration of at least one of a movement velocity of User Equipment (UE), a signal intensity of a Node-B and at least one relay station, and a channel state value of the UE. When addition or deletion of the relay link is determined, a message requesting addition of the relay link or a message informing deletion of the relay link is transmitted by a signaling processor to a relay station corresponding to the relay link whose addition or deletion has been determined.

Abstract: Universal connection data collection solution for monitoring, collecting and reporting connection data and/or attributes for endpoint computing devices making a connection to a network for use in analyzing user behavior and device connectivity efficiencies. Embodiments include IP connections wherein the universal connections data collection module is notified by the OS of IP connection events. Embodiments may include a standalone mode of the universal connections data collection solution and add-on modes wherein the universal connections data collection solution integrates with a third party connection manager using an API to communicate. The universal connections data collection solution monitors the state of network connections by enumerating connections, comparing the list of active connections to the last known snapshot of the network state to determine a network state change (e.g., new connection, change in connection state, disconnection), and periodically updating the statics of the connected network.

Abstract: It is an object of the present invention to bring some automatism into the configuration process of access network nodes in communications networks. This object is achieved by a method for configuring an access network node in a communications network comprising a first access network node and at least a second access network node, which method comprises the steps of:—receiving configuration information from said at least second access network node in said first access network node, and—configuring said first access network node with configuration parameter settings based on said transferred configuration information.

Abstract: The present invention enables the coupling and decoupling of multiple processing devices to a network without disrupting the network. In an embodiment, the invention provides a switch having a network port and several initiator ports each configured for coupling to a processing device. The switch is configured to route data from the network port to the initiator ports and from the initiator ports to the network port. A management agent facilitates operation of the switch by processing port initializations, replying to device registration requests, and processing predetermined unsolicited discovery commands. During operation, the management agent enables configuration changes caused, for example, by the coupling and/or decoupling of processing device to initiator ports.

Abstract: Methods, systems, and computer program products for managing and selectively distributing routing information in a routing node are disclosed. In one implementation, a method for selectively distributing routing information in a routing node includes organizing internal signaling resources are organized so as to facilitate the efficient mapping of signaling system 7 (SS7) message transfer part (MTP) signaling protocol attributes to Internet protocol (IP)-based signaling resources. A routing status information sharing hierarchy is defined, which enables routing status information to be efficiently shared among members of a signaling mateset group. Members of a signaling mateset replicate and distribute SS7 MTP network management information across non-MTP signaling connections, such as IP connections.

Abstract: A method and device for installing and distributing routes are disclosed. The routes are classified and installed respectively according to route types. Therefore, the distributed storage of a Forwarding Information Base (FIB) is automated, massive manual configuration work is avoided, and the problem of oversized FIB of the router as a result of fast growth of the routing table is solved.

Abstract: There is a method and a device allowing the distributed calculation of routing tables for routing in a communication network containing nodes and links. The calculation of routes to be used is carried out in centrally. Data relating to the routes to be used are transmitted to a node which, based on said information, generates a routing table by assigning packet addresses to the routes. The central calculation of the routes results in an increased efficiency of resources while requiring less calculation effort which is particularly advantageous in the context of networks comprising multipath routing where the calculation of routing tables is very complex. A further reduction in effort can be achieved by means of the central calculation of the distribution weightings.

Abstract: The present invention discloses a method for realizing source routing in a blocking cross network. Link state advertisement information diffused in the network carries cross constraint characteristic information, and a call initiating node checks a path tree and gets a service path according to the cross constraint characteristic information included in the link state advertisement information in the network; the cross constraint characteristic information includes physical transmission link layer constraint information of a link in a node, which is called link switching constraint information, and constraint information of each wavelength channel in the link, which is called wavelength constraint characteristic information. The present invention also discloses an apparatus for realizing source routing in a blocking cross network.

Abstract: A multi-protocol, multi-standard, software-defined radio (SDR) includes one or more RF front ends to support each radio frequency band, and a programmable processor that replaces special-purpose hardware for the tuning and demodulation of each radio service. The programmable processor has limited peak processing capabilities, and calculations are made to see if present user terminal assignments will result in processing conflicts that could exceed the peak processing capabilities. In traffic slot applications in particular, any possible simultaneous arrival or overlap of traffic slots from the respective radio services is projected. If conflicts will result from the current user terminal assignments, then those assignments are reshuffled to obtain a non-conflicting result.

Abstract: Circuits and methods for a differential circuit involve having one of more pairs of differential transistors with back-gate terminals, where each of the back-gate terminals is biased by a tunable back-gate voltage to compensate for circuit mismatches in the differential circuit and reduce or eliminate even-order harmonics in the output signal. A compensation circuit can be configured to receive data relating to the differential output signal of the differential circuit, and to supply one or more back-gate voltages to the back-gate terminals of the differential transistors to adjust threshold voltages of the differential transistors and suppress even-order harmonics in the differential output signal of the differential circuit.

Abstract: Techniques for designing a highly differential single-ended-to-differential converter for use in, e.g., communications receivers. In an exemplary embodiment, an auxiliary current path including cascomp transistors is coupled to a main current path including input transistors and cascode transistors. The transistors are biased such that inter-modulation products generated by the auxiliary current path cancel out inter-modulation products generated by the main current path. In another exemplary embodiment, current source transistors for the main current path are adaptively biased depending on the level of the input signal received. In an exemplary embodiment, the techniques may be applied to designing a converter for interfacing a single-ended low-noise amplifier (LNA) output voltage with a differential mixer input in a communications receiver.

Abstract: A method for transmitting a physical uplink control signal in a time division duplex system, wherein the uplink control signal is more than 2 bits. The method comprises the following steps of: a base station distributing a plurality of uplink channel code resources of a physical uplink control channel (PUCCH) for a user equipment, and making an agreement with the user equipment to transmit different contents represented by the uplink control signal using different uplink channel code resources; the user equipment selecting one or more uplink channel code resources from the distributed uplink channel code resources according to the content of the uplink control signal to be transmitted, and transmitting the uplink control signal on the physical uplink control channel.

Abstract: An embodiment of the present invention provides an apparatus that may include a transceiver operable to communicate with a receiver in a wireless network and adapted to select an optimal mode for transmissions, wherein the receiver estimates the optimal mode and feeds it back to the transceiver which changes a transmitted mode accordingly and wherein the optimal mode is based on a predetermined metric based on a performance equation that puts a threshold to separate between a high correlated signal to low correlation signal.

Abstract: A system for managing the activity of one or more of concurrently active wireless communication mediums being supported by at least one radio module integrated within a wireless communication device. More specifically, the present invention, in at least one embodiment, may align communication controlled by Internet protocol (EP) with operational schedules formulated for supporting wireless communication mediums and/or radio modules.

Abstract: Systems and methodologies are described herein that facilitate filtering or clustering of radios and/or other transceivers associated with a communication environment. As described herein, potentially conflicting transceivers supported by a communications device can be managed in an expedited fashion by filtering the transceivers into respective groups or clusters of transceivers that exhibit potential collisions. For example, clusters can be generated such that respective transceivers are associated with a single cluster and respective transceivers associated with a given cluster do not exhibit potential collisions with transceivers not associated with the given cluster. Clustering can be performed graphically as further described herein by generating and analyzing a graph that includes nodes corresponding to respective transceivers and edges representing potential conflicts therebetween.

Abstract: A wireless communication apparatus, which is capable of operating in an active mode and a sleep mode, comprises an antenna control unit, which controls a half-value angle and a directivity angle of an antenna for communication, and a mode control unit, which controls a change between the active mode and the sleep mode. When the wireless communication apparatus is in the sleep mode, the antenna control unit sets the half-value angle of the antenna to be a larger half-value angle than the half-value angle with respect to the active mode, and sets the directivity angle of the antenna to a predetermined angle.

Abstract: A wireless communication system is provided. The wireless communication system comprises a control apparatus, a first mobile communication apparatus and a second mobile communication apparatus. The first and second mobile communication apparatuses are within a wireless communication coverage of the control apparatus. The first mobile communication apparatus is in a standby period under an idle mode according to a wireless communication protocol; the second mobile communication apparatus is in an active period under the idle mode according to the wireless communication protocol and establishes a communication link with the control apparatus. The first mobile communication apparatus communicates with the control apparatus through the second mobile communication apparatus via a peer-to-peer (P2P) communication mechanism.

Abstract: A wireless LAN base station is operated with a battery or an AC adapter, and transmits and receives communication signals to and from another wireless LAN apparatus. The wireless LAN base station includes: PA and LNA configured to amplify the communication signals; selectors configured to select amplification routes through which the communication signals go through the amplifier, or bypass routes through which the communication signals bypass the amplifier; an AC/battery detecting circuit configured to detect a battery operation state where the wireless LAN base station is operated with the battery, and a AC operation state where the wireless LAN base station is operated with the AC adapter; and a CPU configured to have the amplification routes selected if the AC operation state is detected, and to have the bypass routes selected if the battery operation state is detected.