Abstract: A system and method are provided for prioritizing network processor information flow in a channel service manager (CSM). The method receives a plurality of information streams on a plurality of input channels, and selectively links input channels to CSM channels. The information streams are stored, and the stored the information streams are mapped to a processor queue in a group of processor queues. Information streams are supplied from the group of processor queues to a network processor in an order responsive to a ranking of the processor queues inside the group. More explicitly, selectively linking input channels to CSM channels includes creating a fixed linkage between each input port and an arbiter in a group of arbiters, and scheduling information streams in response to the ranking of the arbiter inside the group. Finally, a CSM channel is selected for each information stream scheduled by an arbiter.

Abstract: Methods and apparatus are provided for data communication between a transmitter and receiver over a plurality of serial links, which cause the transmitter to send serialized groups of bits down each lane, in such a way that the first bit of each group (each lane) is guaranteed to arrive in the correct order at the receiving end. Various embodiments of the present invention include declaring a budget for the maximum skew between lanes. In such embodiments, subsequent to determining the skew budget between lanes, the data to be transmitted is divided into groups of N bits, where N is any convenient number larger than M times S, with M being the number of lanes and S being the budgeted skew, in bit times.

Abstract: Methods and systems for determining a correction factor for use in monitoring network traffic, said network traffic comprising a plurality of flows of data units, each flow having associated therewith a flow identifier, said data units having associated therewith a path characterization metric; the method comprising the steps of: selecting a subset of flow identifiers from the overall set of flow identifiers; determining, in respect of flows having associated therewith flow identifiers from said selected subset of flow identifiers, which flows if any are persistently irregular flows; determining a first measure of the total of the accumulated path characterization metrics associated with data units of said selected subset of flows; determining a second measure indicative of the proportion of said total measure contributed by said persistently irregular flows; and determining a correction factor in dependence on the first and second measures.

Abstract: A method for detecting and isolating domain specific faults includes comparing a first media quality report for a communication from a first node with a second media quality report for the communication from a second node. The first node comprises an ingress node of a first domain for the communication and the second node comprises an egress node of the first domain for the communication. The method also includes determining that the difference between at least one aspect of the first media quality report and at least one corresponding aspect of the second media quality report exceeds a first threshold. The method further includes, upon determining that the difference exceeds the first threshold, determining a first path between the first node and the second node used by the communication. The method additionally includes isolating at least one source causing the difference between the first media quality report and the second media quality report.

Abstract: A slave device includes: a clock unit that is configured by a counter so as to output time information; a clock generation unit that generates clocks for counting up the counter; a message receiving unit that receives messages sent from a master device; a message sending unit that sends messages to the master device; a first calculation unit that calculates a first value necessary for correcting the time on the clock unit; a first correction unit that corrects the time on the clock unit based on the first value calculated by the first calculation unit; a second calculation unit that calculates a second value necessary for correcting a frequency of the clocks generated by the clock generation unit; and a second correction unit that corrects the frequency of the clocks generated by the clock generation unit based on the second value calculated by the second calculation unit.

Abstract: Simulation models of media access control and physical layer characteristics facilitate the simulation/emulation of a variety of phenomena that affect transmissions via a wireless media. Such phenomena include media access contention delays, packet drops, and retransmissions that are generally dependent upon changes in transmitter/receiver locations. Each wireless environment is characterized by a model of the communication channel that characterizes transmission effects based on the number of competing transmitters in the environment, which is dynamically determined based on the location of each node in the environment. Additionally, the location of nodes is used to simulate the effects of ‘hidden nodes’, nodes that are unknown to a transmitting node but can interfere with the reception of transmissions at a receiving node. Each device/node model in the wireless environment preferably accesses the same model of the communication channel, thereby minimizing the amount of detail required at each device model.

Abstract: In order to perform uplink scheduling for a terminal, a base station receives information on uplink interference due to the terminal from neighbor base stations, transmits the information on the uplink interference to the terminal, receives information on transmission power of a feedback channel from the terminal through the feedback channel, compares the transmission power of the feedback channel and reception power of the feedback channel so as to estimate transmission loss, and performs uplink scheduling for the terminal by reflecting the transmission loss.

Abstract: A method for transmitting interleaved shares of packet-level FEC encoded packets, in which a given time shift occurs between consecutive shares, includes determining a current state; associating a packet with a share based on the current state; and determining a position of the packet within the share. Each share includes source packets and error-correcting or wildcard packets. If the position of the packet corresponds to a source packet position, a contribution of the packet to the wildcard packets of the share is computed, and the packet is transmitted as a source packet. If the position of the packet corresponds to a wildcard packet position, the packet is transmitted as a wildcard packet.

Abstract: Disclosed herein is a method, a computer program product, and a carrier for indicating one-way latency in a data network (N) between a first node (A) and a second node (B), wherein the data network (N) lacks continuous clock synchronization, comprising: a pre-synchronisation step, a measuring step, a post-synchronisation step, an interpolation step, and generating a latency profile. The present invention also relates to a computer program product incorporating the method, a carrier comprising the computer program product, and a method for indicating server functionality based on the first aspect.

Abstract: Packet transmission quality in a communication network is measured by transmitting a measurement packet from a packet transmission node to a packet reception node. The packet transmission node is provided with a transmission counter counting the number of packets transmitted from a packet transmission node to a packet reception node, and a measurement packet counter counting the number of measurement packets transmitted from the packet transmission node to the packet reception mode. The packet reception node is provided with a reception counter counting the number of packets received from the packet transmission node. The packet transmission node transmits a measurement packet including a transmission counter value and a measurement packet counter value, to the packet reception node which calculates the number of lost packets or a loss rate of packets on the basis of the transmission counter value, the measurement packet counter value, and a reception counter value.

Abstract: There is provided a method for placing reference signals in a wireless communication system. The method includes preparing a plurality of sub-frames for a plurality of antennas, placing a reference signal for one sub-frame and placing a reference signal for another sub-frame not to overlap with the reference signal for one sub-frame, wherein the reference signal for one sub-frame and the reference signal for another sub-frame are successively placed on contiguous OFDM symbols or on the contiguous sub-carriers. Channel estimation or data demodulation can be prevented from performance degradation.

Abstract: A serializer is provided to serialize combined synchronization information and data blocks for transmission over the high-speed channel. A gearbox combines synchronization information with data blocks to present to the serializer. A scrambler scrambles data blocks to present to the gearbox. An encoding device stores a program that contains instructions to format the data blocks for sending over the high-speed channel. The formatting reduces a number of operations used to receive the data blocks by a receiver.

Abstract: A method for resource-block allocation, which includes processing OFDM symbol samples to produce complex taps of DFT, selecting the taps forming part of a current resource block allocation and processing the selected taps to provide MAC data. Further, the method includes storing taps that were not previously selected and extracting from the MAC data resource block allocations designating a current sub-frame and subsequently processing the stored taps identified as having the same sub-frame as the allocations extracted from the MAC data, such that scheduling blocks can be included within the same sub-frame as one or more scheduled blocks.

Abstract: A video compression and transmission system that uses a novel rate-distortion algorithm is disclosed. The video compression and transmission scheme is a modification of the JPEG 2000-based video transmission systems for constant bit-rate channels.

Abstract: A method for scheduling a transmission of ATM cells, the method includes: receiving an indication that a scheduling session should starts; and repeating the stages of: selecting a channel representative queue out of multiple queues that are associated with different quality of service traffic threads that belong to that channel; scheduling a transmission of frames from channel representative queues and from single queue channels; wherein the scheduling comprises processing a scheduling table that comprises multiple sets of entries, wherein each set of entries is associated with a different transmission priority level, and wherein at least one set of entries comprises a link to a transmission parameter table that is associated with a channel representative queue.

Abstract: A method for controlling traffic flow in a communication network compliant with a Multilevel Precedence and Preemption (MLPP) scheme is described. The method selectively modifies parameters of TCP connections for transmissions to meet speed of service (SoS) requirements and establishes the connections in accordance with their levels of precedence. In applications, the method may be implemented in communication networks using High Assurance Internet Protocol Encryption (HAIPE) or an IP Security (IPSec) protocol.

Abstract: Method and device for managing simultaneous connections of a mobile telecommunications device to at least a wireless local area network and a mobile telephone network via a single terminal of the mobile telecommunications device, the method including the steps of: (a) establishing a first wireless connection of the terminal with the wireless local area network, (b) establishing a second wireless connection of the terminal with the mobile telephone network, (c) responding to each network at predetermined times, such that the first and second wireless connections are maintained, and (d) preventing simultaneous transmittals of data from the terminal to both networks over the first and second wireless connections.

Abstract: A network system is provided, in which a system change can be easily performed by adding or exchanging an equipment(s) to be controlled or monitored. The equipment has an object with an object identifier defined according to a service content provided by the equipment. Upon the receipt of a service request using the object identifier from a network device connected to the equipment via a network, the equipment executes the service defined in the object according to this service request. By assigning a same object identifier to objects of a plurality of equipments, it is possible to provide the same service from those equipments according to the service request performed from the network device by use of the same object identifier.

Abstract: A method communicating downlink and uplink sub-frames between a base and at least one half duplex user equipment. For a scheduled synchronization time, beginning of reception of an effective part of the uplink sub-frame is separated from end of transmission of an effective part of the first downlink sub-frame by a duration of the difference between a single idle period and an incremental timing advance value. The single idle period, having a duration greater than or equal to summation of downlink/uplink and uplink/downlink required minimum idle durations, is reserved in the end of the first downlink sub-frame or the beginning of the uplink sub-frame, or both. The incremental timing advance value is greater than or equal to the uplink/downlink required minimum idle duration and lower than or equal to the difference between the duration of the single idle period and the downlink/uplink required minimum idle duration.

Abstract: A session control system in a service network configured to receive from a border system first control traffic in a first control protocol transmitted from a device in an access network to control a session, comprising a first interface configured to receive an update message indicating status information related to the border system; a processing system coupled to the first interface and configured to generate second control traffic in response to the update message; and a second interface configured to transfer the second control traffic in a second control protocol to the device wherein the second control protocol is different than the first control protocol.