Abstract: A system and a method are disclosed for selectively monitoring traffic in a service provider network. The system receives a notice for a beginning of a network data flow, which responds to a request from a user device for content at an origin server. The system then determines whether to monitor the data flow from the origin server to the user device. If so determined, the system collects statistic information of the data flow and stores the statistic information to a flow record in a database. The system also maps the flow record to a subscriber of the service provider network by analyzing the statistic information of the data flow and estimates bandwidth provided to the data flow by the service provider's network based on the analysis of the statistic information of the data flow.

Abstract: A receiver circuit for coupling to a serial link is disclosed. The receiver circuit comprises a data buffer and serial interface circuitry. The serial interface circuitry receives serialized packet words and processes the serial words for input to the data buffer. The serial interface circuitry includes word detection logic to detect predefined control words and discard logic to selectively inhibit forwarding of one or more of the predefined control words to the data buffer.

Abstract: Access for wireless mobile nodes (WMNs) to access points (APs) may be provided via a wireless network where each WMN is associated with a plurality of APs, according to an exemplary embodiment.

Abstract: A network relay device includes a plurality of ports which input and output data packets, a storage in which a destination to which an input data packet is to be transferred and identification information of a port that outputs the input data packet are associated with each other for each of the plurality of ports, and a transmitter which obtains from the storage a destination associated with a port to which a data packet responsible for a congested state of traffic is input out of the plurality of ports, and which transmits a notification of congestion to the obtained destination.

Abstract: A method and system for network communication is provided. The method for network communication comprises setting a data size for a network connection, wherein the data size represents an amount of network data a network adapter can send to a host system for the network connection before the network adapter waits for an application to accept any data that has been sent to the host system; monitoring the amount of network data that is received by a host system driver; monitoring the amount of network data that is sent by the network adapter; and suspending transfer of network data to the host system, if the amount of network data sent by the network adapter is similar to the set data size.

Abstract: The present invention provides improved methods and devices for managing network congestion. Preferred implementations of the invention allow congestion to be pushed from congestion points in the core of a network to reaction points, which may be edge devices, host devices or components thereof. Preferably, rate limiters shape individual flows of the reaction points that are causing congestion. Parameters of these rate limiters are preferably tuned based on feedback from congestion points, e.g., in the form of backward congestion notification (“BCN”) messages. In some implementations, such BCN messages include congestion change information and at least one instantaneous measure of congestion. The instantaneous measure(s) of congestion may be relative to a threshold of a particular queue and/or relative to a threshold of a buffer that includes a plurality of queues.

Abstract: A first set of frames is received in a data flow and tagged with respective serial numbers identifying an ordering of frames in the first set. The tagged first set is forwarded to a general processor for processing prior to being sent to a remote network element. A data flow policy is received from the general processor based on processing of the first set. A second set of frames of the data flow are received subsequent to forwarding the first set to the general processor. It can be verified, based on the assigned serial numbers, that each frame in the first set has been sent to the remote network element prior to sending frames in the second set. The second set is processed and sent to the remote network element by the network processor, bypassing the general processor, based on the data flow policy.

Abstract: Manageability tools are provided for allowing an administrator to have better control over switches in a lossless network of switches. These tools provide the ability to detect slow drain and congestion bottlenecks, detect stuck virtual channels and loss of credits, configure hold times on edge switches to be different from hold times on core switches, and mitigate severe latency bottlenecks.

Abstract: Systems and methods are provided for adjusting Radio Resource Control (RRC) timers in a Radio Access Network (RAN). The system manages radio communications between a mobile device and a base station, and further transitions the mobile device between Radio Resource Control (RRC) states based upon application-layer data traffic for the mobile device and a timer value. Additionally, the system determines an overhead load based on network-layer signaling events associated with at least one RRC transition for the mobile device, and determines a bearer load based on the application-layer data traffic for the mobile device. Based upon the overhead load and the bearer load, the system adjusts the timer value.

Abstract: Information associated with a communication is gathered at a switching point during the routing process to determine subscriber metric information associated with an active service identifier. The information relates to the originator of the communication and the target. The information is compared to a provider database to determine a carrier originally associated with the active service identifier. The information is then compared to a porting database to determine if the active service identifier was ported, and if so, to which carrier the active service identifier was ported. A determination can then be made regarding which carrier is associated with the active service identifier. Various systems and methods may be used to determine a number of subscribers, a number of new subscribers, and a number of disconnected subscribers for a given carrier in a given market.

Abstract: A radio base station generates a congestion status flag, based on measured resource usage in its cell, and based on performance of sessions in the cell. The flag may be a one bit, or a small number of bits, indicating whether the base station is congested. The flag can be sent to neighboring radio base stations, for use in determining whether to perform handovers to that radio base station. The flag generated in a radio base station, and the flags generated in neighboring radio base stations, can also be sent to user equipment in a cell.

Abstract: A network component comprising a processor configured to implement a method comprising receiving a request for a content from a first node, determining whether a second node is associated with the content, and facilitating the transfer of the content from the second node to the first node when the second node is associated with the content, wherein the second node is an interior node. Also disclosed is a method comprising receiving a request for a content from a first node in a network, determining whether the content is being distributed to a second node in the network, calculating a path between the second node and the first node when the content is being distributed to the second node, and establishing a connection along the path such that the content is distributed from the second node to the first node.

Abstract: A communication system employs a transmitting device and a receiving device. The transmitting device allocates certain data, based on transmission data, to both a non-superposed band, corresponding to a frequency band with no interference signal present, and a superposed band, corresponding to a frequency band where an interference signal is present. Alternatively, the transmitting device allocates the data to the non-superposed band while giving a higher priority to the non-superposed band. The transmitting device then generates and transmits a multicarrier signal based on the allocation, so that the receiving device can receive it.

Abstract: According to an aspect of an embodiment, a method of managing packets in a communication network including multiple communication nodes is described. The method may include receiving a packet including a packet header. The packet header may include a packet identifier uniquely identifying the packet. The method may also include determining a packet type of the packet received by a first communication node based on the packet identifier. The method may also include dropping the packet when the packet is determined to be a duplicate packet or routing the packet to a neighbor communication node in a manner that prevents the packet from being caught in a loop when the packet is determined to be a returned packet or a new packet.

Abstract: A Digital Subscriber Line Access Multiplexor (DSLAM) for operation within an access network includes a plurality of digital subscriber line modems for terminating a plurality of corresponding digital subscriber lines and aggregating them for onward connection through the access network. The DSLAM is operable, each time a data connection is established or re-established over one of the digital subscriber lines, to generate line data about the data connection at the DSLAM, to store the line data, to wait a predetermined period of time, to determine if the data connection is still operating successfully since the establishment of the connection without having suffered loss of connection during the predetermined period and then to transmit the line data to a management device which performs dynamic line management based on the data.

Abstract: A network device including an address move detection unit, a loop detection packet generation unit, a packet parser unit and a loop determination unit coupled to the packet parser unit is provided. The address move detection unit detects whether an address field of a first packet received by the network device is moved. The loop detection packet generation unit generates a loop detection packet if the address move detection unit detects that the address field is moved. The packet parser unit parses a second packet received by the network device to extract an information. Based on the information, the loop determination unit determines whether the second packet matches the loop detection packet so as to determine whether there is any loop existing in the network device.

Abstract: An arrangement is provided for detecting a matching DSL data link layer protocol. A matching-protocol detection mechanism is triggered under certain condition. The matching-protocol detection mechanism, once triggered, detects a matching protocol from at least one initiating protocol. The matching protocol is supported by both a customer premise equipment and a digital subscriber line access module and is used by both to establish a DSL connection. When the matching protocol is successfully identified, it is activated. When the matching protocol is not found, a failure is reported.

Abstract: A GSM or UMTS mobile telecommunications network is provided including a radio access network comprising macro base stations with additional access points. The access points are connected to a network core via a hub and a concentrator and may appear to a mobile terminal as a conventional base station that communicates with the mobile terminal using GSM or UMTS protocols and does not require modification to a standard GSM or UMTS mobile terminal. The access points are associated as a cluster. A procedure includes performing initial configuration of the access points such that one or more of the access points operates in a transmit mode while the other access points operate in a receive mode only. The strength of the received signal is processed by a processor associated with the concentrator which calculates and provides parameters to each of the access points to provide optimum radio coverage within premises.

Abstract: In geographical areas with incomplete Time Division Synchronous Code Division Multiple Access (TD-SCDMA) coverage, it may be beneficial for a multimode User Equipment (UE) to handover to a GSM network, a WCDMA network, a CDMA 1x RTT network, or an LTE network. When multiple networks are available to the UE and a poor signal quality is detected in the TD-SCDMA network, one of the available networks may be selected for inter-RAT handover based on a service type of the active call on the UE. For example, when a circuit-switched call, such as a voice call, is in progress on the UE, an inter-RAT handover to a GSM network occurs. In another example, when a packet-switched call, such as a data call, is in progress on the UE, an inter-RAT handover to a WCDMA network occurs. Selecting a network for inter-RAT handover based on an active call service type improves the service provided to the UE.

Abstract: A solution for network packet latency measurement includes, at a network device having a memory, storing a first time value indicating when an ingress port of the network device received a packet. The solution also includes storing a second time value indicating when an egress port of the network device received the packet for transmission towards another network device. The solution also includes storing a difference between the first time value and the second time value.

Abstract: Cooperative communication is a technique that can be employed to meet the increased throughput needs of next generation WiMAX systems. In a cooperative scenario, multiple stations can jointly emulate the antenna elements of a multi-input multi-output system in a distributed fashion. A framework for a randomized distributed space-time coding (“R-DSTC”) technique in the emerging relay-assisted WiMAX network, and the development of a cooperative medium access control (“MAC”) layer protocol, called CoopMAX, for R-DSTC deployment in an IEEE 802.16 system, is described. The technique described couples the MAC layer with the physical (PHY) layer for performance optimization. The PHY layer yields significant diversity gain, while the MAC layer achieves a substantial end-to-end throughput gain.

Abstract: The method of computing the available space in a packet for data stream transport comprises: a step of determining the requirements of each module of a data stream manager, for space in the packet for at least two types of header and/or extension data required by each protocol and/or service used by said module, a step of determining a maximum space requirement in the packet to meet all these requirements, by implementing different rules for combining space requirements for the different types of data and a sum of the combined requirements for the different types of data and a step of computing a difference between the space of the packet and the maximum space requirement in the packet in order to determine the available space for data stream transport.

Abstract: The invention concerns a method and an apparatus implementing the method. In the method is determined in a mobile node whether the mobile node supports mobile node specific cyclic prefixes. The mobile node transmits to a base station node an indication whether the mobile node supports mobile node specific cyclic prefixes. The base station node measures a delay spread of a radio resource transmitted by the mobile node. The mobile node receives an indication of an uplink direction cyclic prefix length from the base station node. The mobile node forms a cyclic prefix of the uplink direction cyclic prefix length selected from a useful symbol, adds the cyclic prefix in front of the useful symbol and transmits a signal comprising the cyclic prefix and the useful symbol to the base station.

Abstract: Certain aspects of the present disclosure relate to techniques for carrier preconfiguration for monitoring for transmissions of downlink control information (DCI), for example, conveyed in physical downlink control channel (PDCCH) transmissions utilizing multiple carriers. The methods and apparatuses described herein may be applied in both frequency division duplex (FDD) and time division duplex (TDD) systems.

Abstract: A method for a device to determine a group owner that functions as an access point in a wireless network is provided. In the method, a first device acquires first intention information indicating the first device's intention to become a group owner and receives, from a second device, second intention information indicating the second device's intention to become a group owner, and compares the first intention information and the second intention information to determine that one of the first and second devices is a group owner. This method enables smooth communication between devices in a wireless network since a device which has more available power or can operate for a longer time can become a group owner.

Abstract: Methods and apparatus are described that provide efficient detection of the carrier-phase difference (CPD) between communicating devices over the entire signal bandwidth. The CPD detection utilizes the linear structure of the CPD, which eliminates most of the feedback overhead. Both feedback mechanisms, compact digitized feedback, and feedback via fast signaling protocols, are described. The CPD can be decomposed into a fixed/slow-changing portion and a fast-varying portion, with the former being pre-calibrated and communicated prior to communications sessions, thus further reducing the feedback overhead and improving the CPD detection accuracy. The nonlinearity in the TX/RX chains can also be pre-calibrated, allowing CPDs with more general structures to be detected by methods that detect CPDs with linear structures.

Abstract: A scheduling method in a wireless communication includes receiving a Channel Quality Indicator (CQI) from a plurality of terminals. The method also includes determining an average transmission rate of each terminal based on the CQI by approximating an instantaneous transmission rate distribution to a Gaussian distribution. The method further includes determining a weight of each terminal such that the average transmission rate of each terminal satisfies a target transmission rate. The method also includes selecting a terminal set by applying the determined weight. Thus, it is possible to control the fairness between the terminals and to efficiently control the transmission rate of the terminals according to the required transmission rate and the channel environment of the terminals.

Abstract: Embodiments are directed towards managing network routes using a centralized service on behalf of a network of a plurality of forwarding devices. The centralized service develops a global view of the network based on information from the forwarding devices. The centralized service computes changes to the routing policy for each of the nodes. The centralized service then generates an operational command schedule that is distributed to the forwarding devices using a “make before break” sequence to ensure that transient black holes do not happen as the new routing policy is being implemented.

Abstract: Disclosed are a data rate matching method and apparatus for use in mobile communication systems that can perform parallel interleaving at a high speed without a collision between encoded data input in parallel. A set of first parameters (f1) is calculated on the basis of a length (D) of encoded input data and a set of second parameters (f2) is calculated on the basis of a set of prime numbers constituting a value of the length (D) of the input data. Interleaving is performed on the basis of the set of first parameters (f1), the set of second parameters (f2), and the length (D) of the input data.

Abstract: A secondary carrier activation/deactivation method for activating/deactivating secondary carriers in addition to a primary carrier is provided for a mobile communication system supporting carrier aggregation. The method includes identifying, when a secondary carrier control message is received from a base station, carriers to be activated are deactivated, determining, when the message includes a secondary carrier activation command, whether a first time point has arrived, and executing, when the first time point arrives, predetermined first operations. The present invention is advantageous to avoid malfunctions in communication system supporting carrier aggregation by defining UE operations to be taken in SCell activation and deactivation.

Abstract: A transport block size (TBS) of a first uplink message (RACH Msg3) transmitted on a Physical Uplink Shared Channel (PUSCH) during a random access procedure in a User Equipment (UE) accessing a radio access network may be determined by receiving a pathloss threshold parameter. A downlink pathloss value indicative of radio link conditions between the UE and a base station (eNB) serving the UE is then determined. A smaller value of TBS is selected from a set of TBS values if the determined pathloss value is greater than an operating power level of the UE minus the pathloss threshold parameter. A larger value of TBS is selected if the pathloss value is less than the operating power level of the UE minus the pathloss threshold parameter and the TBS required to transmit the RACH Msg3 exceeds the smaller TBS value.

Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

Abstract: In a system and method of determining a link capacity between an access node and a wireless device in a wireless communication network, sending over a communication link from the access node to the wireless device a plurality of packets comprising a packet size and a data length based on a modulation and coding scheme assigned to the communication link, determining a dispersion of at least two of the packets sent to the wireless device, calculating an average dispersion rate based on the determined dispersion of the at least two packets and the data length, and determining an available link capacity based on the packet size and the average dispersion rate.

Abstract: A method for indicating one-way latency in a data network, with continuous clock synchronization, between first and second node having clocks that are not synchronized with each other includes a continuous synchronisation session and a measurement session. The method repetitively sends predetermined synchronization messages from the first node to the second node and from the second node to the first node, calculates a round trip time for each message at the first node, updates a synchronization point if the calculated round trip time is smaller than a previously calculated round trip time, stores the updated synchronization points of a synchronization window, and calculates a virtual clock from the updated synchronization points of the synchronization window. The measurement session collects multiple measurements of one-way latency between the first and second nodes using the virtual clock, and generates a latency profile by interpolating the multiple measurements.

Abstract: A method, base station, terminal and communication system for selecting a component carrier. The method includes: determining the coverage range of each available carrier which can be used by the terminal; determining whether the distribution of the coverage ranges of all available carriers accords with a preset distribution mode; and in the case of according with the presetting distribution mode, at least according to a rule which is determined by the distribution mode, determining a component carrier to be used. With the embodiments, a component carrier used by the terminal can be reasonably chosen.

Abstract: A system and method for tracking a line rate utilization. An effective throughput is measured for a data stream during a time period. A number of frames in the data stream is counted during the time period. A line rate utilization is determined for the data stream utilizing the number of frames and a size of the frames in response to the time period ending. The line rate utilization is save for communication to one or more users. The line rate utilization is communicated to one or more users.

Abstract: The system is based on the arrangement of a plurality of terminals (1), (I?) . . . (In), which are interconnected with one another to form a digital network by means of two databuses, one write and one read, by means of differential transmission, with a hybrid connection topology based inter alia on UTP-type cables (4). Each terminal is constituted by a DLP-type card (7), which contains a programmable logic device for the management of a series of cards associated with the card (7), said cards being a main card (8) and a user-interface card (9), which enable the user to configure the various system options, it being possible, also, to incorporate one or more extension cards (H-H?) for the input and output of audio/video signals, the Internet, a telephone line or an automatic-door-entry line, and also a remote-control and alarm card (10) for activating external loads, activating alarms and receiving signals originating from sensors.

Abstract: A method is provided in one example embodiment and includes establishing a communication pathway between a first network node and a second network node coupled to a network; forming an adjacency to a new network node coupled to the network, where a designated intermediate system (DIS) election operation is executed after the adjacency is formed in order to determine that the new network node is a newly identified DIS for the network; and communicating a message advertising connectivity to both a previously identified DIS and the newly identified DIS, where the message is communicated during a specified time interval.

Abstract: The invention provides a method and device for auto-generating GOOSE signal connection topology from substation level based on IEC61850 standard. The method comprises the following steps: import substation configuration language (SCL) file; search all GOOSE input and output signals under each access point; match the output signals to the input signals; and generate GOOSE signal connection topology based on the result of said matching. The device comprises an importing module for importing substation configuration language file; a GOOSE signal analyzer for searching all of GOOSE input and output signals under each access point, and matching said GOOSE output signals to said GOOSE input signals; and topology data module for generating GOOSE signal connection topology based on said matching. The device comprises a storage module. The storage module comprises an input dataset for storing GOOSE input signals and an output dataset for storing GOOSE output signals and their matching input signals.

Abstract: An attribute propagation method and a switch system based on a fiber channel network are disclosed. According to the present invention, after an attribute is registered on one of its ports, each switch can automatically use its port on the other side to propagate this attribute, and a next adjacent switch can register this attribute on its port on the same side, so that ports on one side of all switches can have this attribute registered automatically. Hereafter, after the attribute is registered its port on the other side, each switch can automatically use its port on said one side that has been registered to propagate this attribute reversely and a next adjacent can register this attribute on its port on the other side, so that ports on the other side of all switches can automatically have this attribute registered. In this way, there is no need to manually configure each port.

Abstract: A system and method for populating a mesh network model includes peer devices that are configured to transmit peer device signals by utilizing a wireless broadcasting procedure. Mobile devices wirelessly detect the peer device signals to produce wireless scan data corresponding to the peer devices. A location server may then receive the wireless scan data for performing a location estimation calculation procedure with the wireless scan data to thereby determine location coordinates for effectively populating the mesh network model.

Abstract: A controller removes a node to be bypassed from topology information that prescribes the network configuration and calculates a new path not passing the bypass node. For the nodes that form the path, the controller creates flow information that prescribes operation on the flow at nodes to set the flow information at the nodes on the path.

Abstract: The present invention provides rapid deployment devices in wireless self-organizing networks. The device in accordance with the present invention may include a control unit having a rapid deployment information segment module and a wireless communication unit electrically coupled to the control unit. The control unit of the present invention may broadcast a neighbor beacon to at least one neighbor. In accordance with the present invention, the rapid deployment information segment module may expand the neighbor beacon to include a rapid deployment information segment so as to transmit rapid deployment information. In accordance with the present invention, the rapid deployment information may include a cost sequence to a reference node.

Abstract: A method for acquiring information includes: receiving an Internet Protocol (IP) address acquisition request or Packet Data Network (PDN) address allocation information sent by User Equipment (UE); determining a PDN address capability according to the IP address acquisition request or the PDN address allocation information; and sending the determined PDN address capability to the UE. An UE and network equipment are also provided. The PDN address capability is determined by the network and is sent to the UE, so as to indicate to the UE the IP address information that may be acquired in a current PDN connection, such that when the network cannot provide an IP address for the UE any more, the UE is prevented from acquiring other IP addresses in other manners, avoiding service abnormality.

Abstract: A communication apparatus searches for another network after a network is created, participates in another network in accordance with a role, in communication parameter setting processing, of a communication apparatus existing in another network, and executes the communication parameter setting processing. After the communication apparatus decides to receive the communication parameters from another communication apparatus, the communication apparatus determines an activation state of a providing function of a provider apparatus of the communication parameters, and requests the provider apparatus to provide the communication parameters in accordance with the determination.

Abstract: Methods and apparatuses are provided that facilitate performing in-band provisioning for one or more devices at a restricted group of network nodes. A packet data context related to performing provisioning at the restricted group can be established between a device and a network via a restricted group node. The device can request provisioning at the restricted group using the packet data context, and the network can perform the provisioning. The packet data context can restrict access to allow provisioning related communications while rejecting other communications until provisioning is complete.

Abstract: Optimized conferencing performance may be provided. First, a plurality of data streams respectively received from a plurality of conferencing users may be monitored. Then, for each of the plurality of conferencing users, a plurality of talk frequency conditions respectively corresponding to the plurality of conferencing users may be determined based upon the monitored plurality of data streams. The plurality of talk frequency conditions may comprise, for example, active-talker, infrequent talker, or listener-only. Next, a plurality of data packet size values respectively corresponding to the plurality of conferencing users may be determined based upon the determined plurality of talk frequency conditions. The plurality of data streams may then be mixed to create data. Next, the data may be transmitted to each of the plurality of conferencing users respectively using the determined plurality of data packet size values respectively corresponding to the plurality of conferencing users.

Abstract: A wireless communication apparatus includes a receiving unit configured to receive a response request signal, a transmitting unit configured to transmit a response signal in response to the response request signal, a measuring unit configured to continuously measure received power of the response request signal received by the receiving unit, and a communication control unit configured to cause the transmitting unit to transmit the response signal to a wireless communication apparatus that has transmitted the response request signal if the received power of the response request signal is higher than a threshold value.

Abstract: The present invention relates to a wireless transceiver system for supporting a dual mode that simultaneously supports the Frequency Division Duplex (FDD) method and the Time Division Duplex (TDD) method in a certain frequency band. The present system supports the FDD system conducting transmission and reception simultaneously by using different frequency bands for transmission and reception as well as the TDD system temporally alternating transmission and reception by using the common frequency band among an upper frequency band and a lower frequency band used in the FDD system as well as another frequency band adjacent thereto, thereby selectively supporting both of the two communication systems in a wireless transceiver system.

Abstract: Pre-equalizing a data signal transmitted in frequency division duplex by an originating entity having a set of originating antennas to a destination entity having a set of destination antennas, including: transmitting a first pilot by a destination antenna; the originating entity estimating a first impulse response of a first channel; an iterative step including an originating antenna transmitting a second pilot modulated by the first impulse response; the destination entity estimating and time reversing a combined impulse response of the first and second channels; the destination antenna transmitting a third pilot modulated by the time-reversed response; estimating a composite response of the channels; re-iterating the iterative step for some originating antennas; and re-iterating the steps of transmitting a first pilot, estimating the first response, and the iterative step for some destination antennas; and determining pre-equalization coefficients for the data signal from a combination of a set of composit