Abstract: An access control unit includes packet buffers provided for each of users, a packet identification unit that stores received packets in a corresponding packet buffer, a scheduling unit that decides a packet buffer to be the object of transfer, a transfer control unit that, in a case that updating of reference data can be performed at an application processing circuit, and also the packet buffer decided by the scheduling unit is different from the current packet buffer that is the object of transfer, updates to reference data corresponding to the packet buffer decided by the scheduling unit, and a buffer selection unit that connects the packet buffers decided to be the object of transfer to the packet transfer unit when updating of reference data is completed.

Abstract: A method includes migrating data within an addressing set to a second storage unit of the DSN. The method further includes establishing a virtual storage unit within the DSN regarding the addressing set. While migrating the data within the addressing set, the method further includes processing, by the virtual storage unit, data access requests having a DSN address within the addressing set. When the migrating the data is complete, the method further includes sending a notification to the virtual storage unit that the migration is complete. The method further includes coordinating, between the virtual storage unit and the second storage unit, an update of the second storage unit regarding the data access requests processed by the virtual storage unit.

Abstract: The present disclosure relates to digital signal processing architectures, and more particularly to a modular object-oriented digital system architecture ideally suited for radar, sonar and other general purpose instrumentation which includes the ability to self-discover modular system components, self-build internal firmware and software based on the modular components, sequence signal timing across the modules and synchronize signal paths through multiple system modules.

Abstract: A media automation system generates multiple instances of a media broadcast stream, which includes core content common to each of the instances of the media broadcast stream, and multiple spot blocks interspersed within the media broadcast stream. Each stream instance is associated with a particular media playout device. A user notification is received and a packaged user notification is generated for inclusion in a particular instance of the media broadcast stream. Packaging the user notification includes obtaining first account information associated with a media delivery platform account of a user associated with a particular media playout device, and second account information associated with a consumer notification service account of the user. The user notification is mapped to the particular media playout device based on the first and second account information, and the packaged user notification is inserted into a first available spot block of the particular instance of the media broadcast stream.

Abstract: In one embodiment, a device in a network splits each of a plurality of packets of two or more data streams into an equal number of fragments. The number of fragments for packets of a particular one of the streams controls the level of error correction for that stream. The device generates recovery symbols for the fragments for each of the plurality of packets. Each of the plurality of packets has an equal sum of fragments plus recovery symbols. The device multiplexes the fragments and recovery symbols for each of the packets, to form a set of new packets. The device sends the set of new packets to one or more recipients in the network.

Abstract: A network device may comprise one or more circuits including a clock signal generator, an ADC, and a processor. The ADC may digitize a received signal across a range of frequencies that encompasses a first band of frequencies used for a first network and a second band of frequencies used for a second network. A sampling frequency of the ADC may be determined by a frequency of a clock signal output by the clock signal generator. The processor may determine whether the first network is active and whether the second network is active. The processor may configure the clock generator such that, when both of the first network and the second network are active, the clock signal is set to a first frequency, and when the first network is active and the second network is inactive, the clock signal is set to a second frequency.

Abstract: Disclosed are techniques for determining lookup value(s) for each of a plurality of network packets. The lookup value can be used to locate a forwarding table storage location(s) for populating or retrieving forwarding information from forwarding table(s). An entropy value of the lookup values can indicate a greater degree of disorder than an entropy value for addresses of the network packets.

Abstract: Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.

Abstract: The method for decoding a serially transmitted signal including: sampling the serially transmitted signal to obtain a plurality of sampled values according to a sampling period; obtaining a period of the serially transmitted signal according to a transition status of the sampled values; calculating a plurality of phase values according to the period and the transition status of the sampled values; obtaining a plurality of boundaries according to the phase values; and outputting a decoded data according to the boundaries and the transition status.

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network. In the transmission method, a received client signal is mapped into a variable-rate container OTU-N, wherein a rate of the OTU-N is N times as high as a preset reference rate; and then, the variable-rate container OTU-N is split into N optical sub-channel transport units OTUsubs by column, where a rate of each OTUsub equals to the reference rate; next, the N optical sub-channel transport units OTUsubs are modulated onto one or more optical carriers; at last, the one or more optical carriers is transmitted through a fiber.

Abstract: The invention relates to systems and methods for prioritizing video slices of H.264 video bitstream comprising: a memory storage and a processing unit coupled to the memory storage, wherein the processing unit operates to execute a low complexity scheme to predict the expected cumulative mean squared error (CMSE) contributed by the loss of a slice of H.

Abstract: Embodiments of the present invention disclose a service transmission processing method, a node device and a network system are provided. One method includes: receiving service data after relay processing by a 3R relay node, where the relay processing includes terminating and regenerating an Optical Channel (OCh) of the service data, and when the OCh is terminated, transparent transmission is performed on an Optical channel Transport Unit (OTU); and performing defect detection on a path of the OTU to obtain a detection result of the path of the OTU. Another method includes: obtaining an overhead in an Optical Transport Network (OTN) frame; and judging whether the overhead includes a Client Signal Fail (CSF) inserted after a signal fails, and if the overhead includes the CSF, determining a path where a defect occurs according to the CSF.

Abstract: The disclosure relates to a method and apparatus for implementing self-adaption of cross granularity in an Optical Transport Network (OTN). The method includes: acquiring an optical interface side OTN service signal which has been processed by a frame-forming chip, and performing determination on the frame header of an Optical channel Data Unit (ODU) frame of the current level in the OTN service signal; when frame-alignment is determined to be successful, performing level-by-level de-multiplexing processing on the ODU frame of the current level to obtain cross granularities of different levels, selecting output channels for the cross granularities of different levels, performing mapping processing on the output cross granularities of different levels to form fixed rate service signals, and outputting the fixed rate service signals to back board ports, where the signals are transmitted to a cross board.

Abstract: Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section. The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

Abstract: Different access networks may perform signaling and data delivery (bearer connection) for communication services. A device may determine, in response to a request for a service from a user of the device, whether the device is connected to a non-cellular access network. The device may transmit, when it is determined that the device is connected to the non-cellular access network, one or more control messages, relating to establishment of the service, using the non-cellular access network. The device may transmit, when it is determined that the device is not connected to the non-cellular access network, the one or more control messages, using a cellular access network. The device may establish, with a party with which the service is to connect, a bearer connection for the service over the cellular access network.

Abstract: Service-centric communication network monitoring apparatus and methods are provided. Service traffic, associated with a third-party service provided by an external service provider that is controlled independently of a communication network, is identified in communication traffic that is being transferred through that communication network. The identified service traffic is monitored, for example, to compile service usage statistics, to police usage of the service, to generate billing records for usage of the service, and/or to mirror the identified service traffic. A registry in which the service is registered may interact with a monitoring system of the communication network so as to establish monitoring for the service traffic.

Abstract: Examples are disclosed for exchanging messages between a switch and network devices having input/output devices. In some examples, the input/output devices for network devices may support communication ports capable of being coupled or connected to the switch via physical communication links. For these examples, the exchanged messages may include information associated with the communication ports or the input/out devices. Other examples are described and claimed.

Abstract: An exchange system which allows for allows for the sharing and updating of presence information and address books between exchange-connected terminals and external terminals and allows for communication between exchange-connected terminals and external terminals via the use of pseudo exchange-connected terminals, pseudo external terminals and a pseudo external terminal & pseudo exchange-connected terminal is provided.

Abstract: In a telecommunications network including a mobile terminal in communication with a network base station, and at least one relay node that assists the base station with downlink data transmissions towards the mobile terminal, a method is provided of enabling coherent demodulation of a scheduled data block transmitted in the downlink by the base station and the at least one relay node. A reference signal is provided in the scheduled data block which is configured to change the mobile terminal from using cell specific reference signalling to using mobile terminal specific reference signalling to enable the mobile terminal to demodulate the scheduled data block transmitted in the downlink by the at least one relay node and the base station. Further, a method of performing synchronous retransmission of data includes transmitting pre-scheduling information for any required synchronous retransmission of a first data transmission by the relay node and the transmitting entity.

Abstract: Specifically, a method and system that performs MIMO and beamforming at a base station based on an uplink channel sounding (ULCS) from only one of the mobile station antennas and closed-loop multiple input, multiple output (MIMO) schemes based on the singular value decomposition (SVD) of the channel matrix. The ULCS is limited to sounding and the channel uses fewer than an optimal number of transmit antennas (e.g. one for WiMAX). The base station arrays may be configured for a full array transmitting mode or a sub-array transmitting mode.

Abstract: A method, transceiver integrated circuit (IC), and communications device that employs a PIN Diode switch in connection with a transceiver integrated circuit in order to provide a highly linear path for simultaneously transmitted signals in a multi-band wireless communications device. A high linearity switch (HLS) utility/controller configures the PIN diode switch for switching between dual and single transmission modes. In the dual transmission mode, both a series PIN diode and a shunt PIN diode of the switch are biased to an on-state. A first transceiver generates and simultaneously transmits different transmission signals occupying different frequency bands to at least one antenna by utilizing a highly linear circuit path that includes the series PIN diode. In single transmission mode, both diodes are biased to an off-state which allows a second transceiver to transmit a single transmission signal to at least one antenna via a switch path with a low insertion loss impact.

Abstract: An apparatus and method for transmitting and receiving a signal and a subcarrier allocation structure therefor in a multi-user multi-antenna communication system are provided, in which a transmitter calculates receive filters for each of a plurality of receivers or for a plurality of antennas in a receiver, determines the index of a vector having a correlation with the calculated receive filters in a preset codebook vector to be a receive filter index, and transmits the receive filter index to the receiver.

Abstract: Device, system, and method of fax relay. For example, a fax relay apparatus includes a fax relay session controller which includes: a first converter to convert non-V.34 fax relay streams which are based on non-V.34 modulation and which are incoming from an Internet Protocol (IP) network into V.34 fax relay streams and to forward the converted V.34 fax relay streams to a V.34 fax relay gateway; and a second converter to convert output V.34 fax relay streams of said V.34 fax relay gateway into non-V.34 fax relay streams which are based on non-V.34 modulation and to forward the converted non-V.34 fax relay streams which are based on non-V.34 modulation to a remote device over the IP network.

Abstract: A method and apparatus for handling an overload condition in a communication network are disclosed. For example, the method calculates a call target rate by at least one core signaling network element for at least one edge signaling network element. The method then sends the call target rate by the at least one core signaling network element to the at least one edge signaling network element, when a processor occupancy of the at least one core signaling network element exceeds a predefined high threshold within a measurement interval, wherein the call target rate is used by the at least one edge signaling network element in an overload control that throttles signaling traffic.

Abstract: In one embodiment, a method includes establishing a link between two N_Port Identifier Virtualization (NPIV) switches, the link having a high cost assigned thereto. The NPIV switches are in communication with a plurality of hosts through an N_Port Virtualization (NPV) device. The method further includes receiving at a first of the NPIV switches, an indication of a failure at a second of the NPIV switches, receiving data at the first NPIV switch, the data destined for one of the hosts associated with a domain of the second NPIV switch, and forwarding the data to the NPV device for delivery to the host, wherein a Fibre Channel Identifier (FCID) of the host is the same before and after the failure at the second NPIV switch. An apparatus is also disclosed.

Abstract: The invention relates to data sources for a deterministic communications system comprising data sources, which can be connected to a data sink by means of at least one coupling node. Said system comprises a means of controlling the data sources to achieve a planned, deterministic communication between said data sources and the data sink.

Abstract: An information management apparatus for managing mutual exchange of information performed by a plurality of information processing apparatuses via a network, including a receiving means for receiving a request for registration from the information processing apparatus connected to the network, as a representative apparatus; a determination means for determining presence or absence of the registration of the representative apparatus; a registration means for registering the information processing apparatus for which the request for the registration has been received, as the representative apparatus, when it is determined that the representative apparatus is not registered; and a rejecting means for rejecting the registration of the information processing apparatus for which the request for the registration has been received, as the representative apparatus, when it is determined that the representative apparatus is registered.

Abstract: A mobile communication system network node (NN) that serves user equipments (UEs) has fewer orthogonal reference signals (RSs) than a maximum number of UE antenna ports (APs) that can be served by the NN. A channel quality of a channel between the AP and the network node is ascertained for each of the APs. Whenever a number of APs of UEs served by the NN exceeds the number of RSs, all RSs are allocated to a subset of all of the APs by means of an allocation process such that: each RS is allocated to only one of the APs; each AP has no more than one RS allocated to it; and allocation decisions are a function of the channel qualities of the respective APs such that the higher the channel quality, the higher priority the corresponding AP is given as a candidate for receiving an RS allocation.

Abstract: The USB interface data transmission device comprises a USB interface controller unit, a dynamic data transmission unit, a central controller unit, a transmission mode configuration unit, a driver program memory and a data transmission interface. In them: The dynamic data transmission unit includes a data input node and a data output node, wherein the data input node supports the data downloading and the data output node support the data uploading, while when necessary the data input node and the data output node support each other's functions by changing their respective data uploading and downloading functions. In a download mode both the data input node and the data output node support the data downloading operation and in an upload mode both support the data uploading operation.

Abstract: In a closed-loop wireless communication system, a codebook-based precoding feedback compression mechanism is provided to remove redundancy from the precoding feedback that is caused by channel correlation in time and frequency. Redundancy due to temporal correlation of the transmission channel is removed by sending precoding feedback only if there is a change in the precoder state for the channel to the receiver. Redundancy due to frequency correlation is removed by run length encoding the precoding feedback, thereby compressing the precoding feedback prior in the frequency domain. By compressing the precoding feedback, the average rate of precoder feedback is reduced.

Abstract: Database management systems, methods, and program products that exploit time dependent sequential database management system processes to ensure presentation of the same data or view to one or a plurality of users through sequencing asynchronous database management operations such as recovery and replication. Sequencing is accomplished through the use of entries in sequential logs, including transaction logs, recovery logs, and other data recovery tools and applications. Uses include managing data migration and data replication.

Abstract: A method of updating a label-switched path for forwarding data in a data communications network in response to a change in a network comprises the step, performed at an updating node of receiving notification of a network change, of constructing a post-change label-switched path in the changed network. The method further comprises, after termination of a first period, forwarding data using the post-change label-switched path.

Abstract: A power line communication device for communicating data signals over a power line is provided. One example embodiment comprises a conditioning circuit configured to be coupled to the power line and a modem communicatively coupled to the conditioning circuitry to transmit and receive data signals over the power line via the conditioning circuitry. The modem may be configured to transmit and receive orthogonal frequency division multiplexed data signals that comprise a plurality of sub-carriers, wherein the modem is adapted to vary the transmit power for each of a plurality of subsets of the plurality of sub-carriers from substantially zero power to a plurality of increments above zero power. The modem also may be adapted to transmit and receive data signals with the transmit power for each of a plurality of subsets of the plurality of sub-carriers being different and to transmit and receive using a different modulation scheme at different sub-carriers.

Abstract: The present invention discloses a method and a system for transparent transport of optical channel transmission unit (OTU) signals via an optical transport network (OTN), which includes a transmitting unit and a receiving unit at the OTN network boundary: the transmitting unit converts an OTUj signal mapping entering the OTN network into OTUk signals of the current OTN network for transmission. In the mean time, it reserves the OTUj control overhead, or extracts the OTUj control overhead and transfers it to the reserved overhead location; the receiving unit receives the OTUk signals arriving at the OTN network boundary, and performs demapping and converting them into OTUj signals.

Abstract: A hybrid forwarding apparatus and method for cooperative relaying in an OFDM network are provided. In a hybrid forwarding apparatus in a relay terminal, a forwarding scheme selector selects a forwarding scheme for transmission. An amplify and forward (AF) block amplifies data received from the forwarding scheme selector, if an AF scheme is selected. A decode and forward (DF) block decodes and encodes data received from the forwarding scheme selector, if a DF scheme is selected. A multiplexer provides the output data of the AF block and the DF block to an OFDM modulator.

Abstract: A network interface device has a fast-path ACK generating and transmitting mechanism. ACKs are generated using a finite state machine (FSM). The FSM retrieves a template header and fills in TCP and IP fields in the template. The FSM is not a stack, but rather fills in the TCP and IP fields without performing transport layer processing and network layer processing sequentially as separate tasks. The filled-in template is placed into a buffer and a pointer to the buffer is pushed onto a high-priority transmit queue. Pointers for ordinary data packets are pushed onto a low-priority transmit queue. A transmit sequencer outputs a packet by popping a transmit queue, obtaining a pointer, and causing information pointed to by the pointer to be output from the network interface device as a packet. The sequencer pops the high-priority queue in preference to the low-priority queue, thereby accelerating ACK generation and transmission.

Abstract: A system for transmitting a clock signal through a packet-based network is disclosed. The system comprises a first node configured to measure a clock frequency of the clock signal and calculate an accuracy indicator of the measured clock frequency; a second node configured to receive the clock frequency measurement and the accuracy indicator of the clock frequency measurement, and synthesize the clock signal therefrom; and a packet-based network for transmitting the measured clock frequency and accuracy indicator from the first node to the second node. A method of deriving a clock frequency by identifying packets with the shortest total transmission time is also disclosed.

Abstract: There is disclosed a private branch exchange in which an SIP terminal is capable of receiving great variety of services provided by the private branch exchange without upgrading version of software of the SIP terminal itself. A standard SIP protocol control module 16, an expanded SIP protocol a control module 17, and an expanded SIP protocol b control module 18 are disposed for SIP system protocol corresponding terminals, convert signals (requests) from the SIP system protocol corresponding terminals into signals of a protocol inside an IP-PBX 1 to transmit the signals to a PBX basic connection process providing module 12, and convert a signal (responses to the request, or a request to the SIP system protocol corresponding terminal) from the PBX basic connection process providing module 12 into a signal of an SIP system protocol to transmit the signal to the SIP system protocol corresponding terminal.

Abstract: A high reliability information transmission system which can continue transmission upon at the occurrence of multiple failures. The system includes two transmission lines and transmission terminals coupled to both of the transmission lines. Data can be transmitted between respective terminals using both transmission lines. The transmission terminals check the data reception status at the corresponding receiving terminals. When data is not being received, the data may be relayed to the receiving terminal using one of the other transmission lines.

Abstract: Data streams stored in buffers (101) are modulated by modulation sections (102). Multipliers (103) multiply the signals output from the modulation sections (102) by weights output from a weight control section (112). The signals output from the multipliers (103) are added up by addition sections (104), subjected to radio transmission processing by transmission radio sections (105) and sent through antennas (106). A buffer control section (111) controls the buffers (101) based on a retransmission count output from a retransmission count detection section (110). The weight control section (112) outputs weights different from weights at the time of previous transmission to the multipliers (103) every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

Abstract: A transceiver includes upstream differential signal lines DPUP and DMUP, downstream differential signal lines DPDW and DMDW, common differential signal lines DPCM and DMCM, a first transmission driver of which outputs are connected to DPUP and DMUP, a second transmission driver of which outputs are connected to DPDW and DMDW, a first switch circuit which connects the first transmission driver to a logic circuit during upstream connection and connects the second transmission driver to the logic circuit during downstream connection, a second switch circuit which respectively connects DPUP and DMUP to DPCM and DMCM during the upstream connection and respectively connects DPDW and DMDW to DPCM and DMCM during the downstream connection, and a third transmission driver connected to DPCM and DMCM.

Abstract: Video surveillance systems have special requirements with respect to networking and remote access functionality. Conventional communication links do not necessarily meet these requirements. Power line channels, accessible via power line modems, do, in some cases, meet the requirements of video surveillance systems where conventional communication links do not. The present invention provides a flexible and reliable video surveillance system that includes networking and remote access capabilities employing power line communication channels.

Abstract: A cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. The plurality of cross link multiplexers has a destination port configured to receive a signal and an origin port configured to produce said signal. The plurality of interconnects has a set of interconnects coupled between a pair of adjacent cross link multiplexers. The signal is capable of being represented as a series of characters. A character is capable of being represented as a first data bit, a second data bit, and a control bit. A first interconnect is configured to convey the first data bit. A second interconnect is configured to convey the second data bit. A third interconnect is configured to convey the control bit. The third interconnect is positioned substantially between the first interconnect and the second interconnect.

Abstract: A cross link multiplexer bus comprising a plurality of cross link multiplexers and a plurality of interconnects. The plurality of cross link multiplexers has a destination port configured to receive a signal and an origin port configured to produce the signal. The plurality of interconnects has a set of interconnects coupled between a pair of adjacent cross link multiplexers. Preferably, the destination port is in a first cross link multiplexer, the origin port is in a second cross link multiplexer, and the first cross link multiplexer is configured to convey the signal toward the second cross link multiplexer in more than one direction. In an embodiment, the signal is capable of being represented as a series of characters, and a character is capable of being represented as a number of bits. Preferably, the plurality of cross link multiplexers includes a delay buffer to delay conveyance of a first bit so that it remains substantially synchronized with a second bit.

Abstract: According to one embodiment of the invention, a method for securely extending a private network to include one or more remote access points (APs) comprises a first operation of establishing a secure communication path with a destination device. Then, the information received from a source device is prepared for transmission to the destination device. This involves the received information undergoing Layer 3 (L3) encryption prior to encapsulation into a message for transmission to the destination device if the received information constitutes control information. If the received information constitutes data, the received information optionally undergoes L3 encryption, since the payload data might be already L2 encrypted by the source device, prior to encapsulation into the message.

Abstract: An optical transmission system accomplishes optical transmission over a long distance by combining a multiplexing line terminal with optical amplifiers, linear repeaters, and regenerators with optical amplifiers combined together. The system also accomplishes the optical transmission over a short distance by directly connecting the linear terminals therebetween, with an electric-to-optic converter replaced by an electric-to-optic converter having a semiconductor amplifier, with an optic-toelectric converter by an optic-to-electric converter having an avalanche photodiode as light receiver, and with no use of any optical booster amplifier and optical preamplifier in multiplexing line terminal. With these, the optical transmission system can be easily constructed depending on the transmission distance required.

Abstract: In a UMTS Terrestrial Radio Access Network (UTRAN), a method of switching from a current common channel to a dedicated channel for a UE. The method comprises estimating the round trip delay for data packets travelling between the UE and a peer node with which the UE is communicating. The product of the estimated round trip delay and the bandwidth of the common channel or the dedicated channel is determined and a threshold defined on the basis of that product. A switch from the common channel to a dedicated channel is initiated when the fill level of the RLC buffer(s) in the UTRAN for the UE reaches or exceeds said threshold.

Abstract: A method for processing a synchronous message in an asynchronous mobile communication system including an asynchronous mobile station and an asynchronous radio network, comprises the steps of: when a synchronous core network is interlocked with the asynchronous radio network, generating a system information block based on a header information provided from the synchronous core network; formatting the generated information block into a system information message; and transmitting the system information message to the asynchronous mobile station via a channel.

Abstract: The invention relates to a method, a device and software for digital inverse multiplexing digital data, wherein a packet of digital data is split into:

Abstract: Connection ports for interconnecting functional modules in an integrated circuit are described. The connection ports provide enhanced functionality based around a common port primitive. This simplifies port design and selection and also allows a common packet protocol to be used for communication of packets across the packet router. In particular, there is improved functionality of target ports which allow out of order requests to be dealt with and out of order responses to be generated.