Entries |
Document | Title | Date |
20080205431 | NETWORK COMMUNICATION SCHEDULING - A method to schedule network communications includes determining nodes within a network, forming a node list based on the nodes in the network, determining a network schedule of communications for the nodes based on the node list. Determining a network schedule includes determining a timeslot. Each node receives data during the timeslot. | 08-28-2008 |
20080205432 | Network-On-Chip Environment and Method For Reduction of Latency - The invention relates to an integrated circuit comprising a plurality of processing modules ( | 08-28-2008 |
20080219287 | DEVICE FOR DETERMINING A NUMBER OF DATA PACKETS - The invention is directed to a device for determining a number of data packets which are to be converted into a coded sequence with a predetermined number K | 09-11-2008 |
20080225880 | Systems and methods for providing framing mapping, muxing and data processing - A method and system for providing Layer 1 time division multiplexing (TDM) framing, multiplexing, and mapping as well as Layer 2 data and protocol processing. One embodiment of the invention provides an integrated Layer1/Layer2 service aggregator within a single-device. Such an embodiment provides a complete System-on-Chip implementation for clear channel and deeply channelized OC-48 (STM-16), 4×OC12/3 (STM4/1) application of 2,000 channels or more. One embodiment implements functionality of Layer2 data and protocol processing as well as Layer1 TDM framing, multiplexing and mapping. For one embodiment, target applications include packet-based transport systems, multi-service access and metro systems, switches and routers and ADM/MSPP systems. | 09-18-2008 |
20080240146 | System and method for wireless communication of uncompressed video having data transmission on a secondary low rate channel - A system and method for performing medium access control in a system for wireless communication of uncompressed video is disclosed. In one aspect, the system includes one or more high rate channels overlapping with a primary low rate channel and one or more secondary low rate channels. In another aspect, the system includes a communication device configured to communicate a bandwidth request message identifying bandwidth required for communication with another communication device. The bandwidth request message contains information allowing a device coordinator to determine a reserved time slot for communication on a secondary low rate channel when communication is determined not to be possible on a high rate channel. Transmission on the secondary low rate channel is time division duplexed with a high rate channel, where transmission at any one time can take place on either the high rate or the secondary low rate channel. | 10-02-2008 |
20080240147 | Media Access Control (MAC) for low-cost, low power sensor networks - This invention proposes unique methods and apparatus for networking low cost low energy sensor nodes. The invention focuses on efficient Media Access Control (MAC) schemes to provide differentiated Quality of Service (QoS) to the sensor nodes in single-hop wireless and wired networks where the source nodes do not have a receiver module. Hence they can only transmit data to a sink but cannot receive any control signals, like an ACK or NAK, from any other node. None of the existing schemes like polling or scheduled transmissions, CSMA or ARQ is thus effective in this type of networks. The proposed scheme provides QoS to the nodes using distributed control by allowing them to transmit each packet an optimal number of times within a given interval. | 10-02-2008 |
20080259949 | Data Processing Circuit Wherein Data Processing Units Communicate Via a Network - Data is processed in a circuit that contains a plurality of data processing units interconnected by a network of node circuits. The node circuits use resources on a time slot multiplexing basis. Stream are started between source data processing units and destination data processing units. Each stream contains messages that occupy the resources in a periodically repeating selection of time-slots. The period of repetition is a network period, which is the same for all the streams. The node circuits forward all the messages of a particular stream through the network along the nodes in a stream specific path assigned to the particular stream. The node circuits decide whether to forward or discard to forward each message dependent on a measure of seniority of the message in its particular stream. A node circuit prevents forwarding of a more junior message for which insufficient resources are left by forwarding of more senior messages from the particular node circuit. Preferably, in selected return time slots, the node circuits send back confirmations to confirm of successful forwarding of a message. The selected return time-slot are selected in predetermined way so that it is possible to predict in a further node circuit back along the path, from the presence of a further message of the stream at that further node circuit in a crossing time-slot, whether the further message will cross the confirmation at the further node circuit ( | 10-23-2008 |
20080259950 | METHOD FOR THE TRANSMISSION AND RECEPTION OF DATA CONTENTS IN A COMMUNICATIONS NETWORK, CORRESPONDING COMPUTER PROGRAM PRODUCT, STORAGE MEANS AND DEVICES - A method of transmission of at least one data content by a source node associated with a generator application to at least one destination node, each associated with a consumer application, in a communications network comprising a plurality of nodes, each being associated with an application, the network implementing a first clocking which defines a first cycle, called a network cycle, for data transmission on said network. | 10-23-2008 |
20080267211 | Integrated Circuit and Method for Time Slot Allocation - An integrated circuit comprising a plurality of processing modules (M, S; IP) and a network (N) arranged for coupling said modules (M, S; IP) is provided. Said integrated circuit further comprises a plurality of network interfaces (NI) each being coupled between one of said processing modules (M, S; IP) and said network (N). Said network (N) comprises a plurality of routers (R) coupled via network links (L) to adjacent routers (R). Said processing modules (M, S; IP) communicate between each other over connections using connection paths (C | 10-30-2008 |
20080279213 | Random Access Channel Protocol - The present invention provides an improved random access channel protocol, wherein different user elements may be associated with different priority levels. Based on relative priority, the user elements may have different probabilities for deciding when to retransmit a previously transmitted packet upon receiving information from an access point indicating that the packet needs to be retransmitted. A buffer is provided for storing a packet to transmit, and the buffer is associated with a stack counter, which is incremented or decremented to or from a nominal value to determine when to transmit or retransmit the packet stored in the buffer. Based on the relative priority, feedback information from the access point may cause the stack counter for a packet needing to be retransmitted to stay at the nominal value, wherein retransmission will occur at the next available time slot, or it may increase the stack counter by one or more levels. | 11-13-2008 |
20080285585 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus is provided. The communication apparatus includes a first unit for performing data communication using a bandwidth reservation type transmission area constituted by a plurality of time-divided time slots via a power line to which an alternating-current voltage is supplied. A second unit is connected to the first unit, for securing a vacant time slot out of the plurality of time-divided time slots. A third unit is connected to the first unit, for securing a time slot out of the plurality of time-divided time slots when incapable of securing the vacant time slot, the secured time slot being used in common by a first communication system used by the communication apparatus and a second communication system different from the first communication system, the second communication system using the same communication procedure as the first communication system. | 11-20-2008 |
20080304508 | Time slot interchanger - There is provided a time slot interchanger for processing channel setting data functioning as control data for interchanging time slots of multiplexed transmission data. In the time slot interchanger, processing of the channel setting data based on alarm data is performed in accordance with a preset first transmission capacity, and with respect to the channel setting data in accordance with a preset second transmission capacity, processing of the channel setting data in accordance with the first transmission capacity is dispersedly performed in a time series manner. | 12-11-2008 |
20090028176 | Bandwidth Requests Transmitted According to Priority in a Centrally Managed Network - Systems and methods are disclosed for a managed access network device that generates and transmits a schedule map for requesting bandwidth to a plurality of network devices. The managed access network device then broadcasts a request time where the request time is broken down into a plurality of periods. When a network device generates a packet having a priority, the schedule map is then consulted to determine one of a plurality of periods in which to transmit the request for bandwidth, where each period corresponds with at least one priority. The network device then subsequently transmits the request for bandwidth during the determined period within the request time. | 01-29-2009 |
20090034552 | IN-HOME COEXISTENCE NETWORK - Systems and methods for dynamic allocation of network bandwidth. In some examples, a guaranteed interval period, including a guaranteed interval start time and guaranteed interval end time, can be identified based upon policy. Network stations can then identify first interval start times and first interval end times different than the guaranteed start times and guaranteed end time provided by policy. An access network can thereby provide a first interval start time and a first interval end time to stations within the access network. An in-home network can determine an in-home interval period based upon the first interval start time and first interval end time. | 02-05-2009 |
20090059951 | PROGRAM CONTROL DEVICE - Provided is a program control device which switches, per timeslot, between threads to be executed. The program control device includes: a first interrupt creation unit which creates a first interrupt signal which designates a timeslot as a destination; and a first receiving unit which [i] does not receive the first interrupt signal if the timeslot as the destination is not a current timeslot, and [ii] receives the first interrupt signal if the timeslot as the destination is the current timeslot. | 03-05-2009 |
20090074005 | HIGH-CAPACITY PACKET-SWITCHED RING NETWORK - A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC protocol along with an admission algorithm enhance the network throughput capacity. | 03-19-2009 |
20090092148 | RESOURCE REMAPPING AND REGROUPING IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns. | 04-09-2009 |
20090097497 | Flexible bandwidth allocation in high-capacity packet switches - A method and apparatus for flexible sharing of bandwidth in switches with input buffering by dividing time into a plurality of frames of time slots, wherein each frame has a specified integer value of time slots. Counters associated with the input-output queues of the switches are loaded with a negotiated integer value once per frame. The inputs sequentially select available outputs to which the inputs send packets in specified future time slots. Priority is given to input-output queues with counters having positive values. The selection of outputs by the inputs is done using a pipeline technique and a schedule is calculated within multiple time slots. The counters for selected queues are then decremented by 1. | 04-16-2009 |
20090122808 | System And Method Of Scheduling Delivery Of Packets - A system and method of scheduling delivery of a packet for transmission from a network device, is provided. The packet is classified according to type, and queued with other packets of the same type. Each packet is associated with an expiry time, after which it will not be delivered. A queue tracker monitors the queues and removes expired packets. | 05-14-2009 |
20090129402 | Method and System For Scheduling Multimedia Shows - A method and system for scheduling multimedia shows have been disclosed. According to one embodiment, a computer implemented method comprises receiving digital content to be used in a multimedia show, the digital content including digital photographs, digital video, and digital music. One or more categories associated with the digital content are determined. One or more cable network destinations that are available for the multimedia show are determined. Destination and category pairs are generated from the one or more categories and the one or more cable network destinations. One or more time slots are determined that are available for the digital content. | 05-21-2009 |
20090154488 | METHODS AND APPARATUS FOR SERVICE PROTECTED RANGING IN A PON - In various example embodiments, a system, method and apparatus are provided for assuring that a ranging process on a PON does not affect real-time services. In an example embodiment, a method is provided. The method includes designating a real-time frame every R frames in a communications system. The method also includes designating frames intervening between real-time frames as non-real-time frames. The method may further include determining a quiet zone is needed for detection of network equipment. Moreover, the method may include scheduling a quiet zone of one or more consecutive non-real-time frames. Additionally, the method may include receiving ranging signals from the network equipment during the quiet zone. | 06-18-2009 |
20090168796 | Apparatus and method for adaptive channel hopping in mesh networks - Various embodiments provide an apparatus and method for adaptive channel hopping in a mesh network. An example embodiment is configured to divide a time period into a plurality of frames; subdivide each of the plurality of frames into a plurality of slots, each of the plurality of slots providing a time segment for local data communication between nodes in a mesh network; enable a first node to dynamically assign itself a first channel for local data communication, the first node using the first channel to receive data communications destined for the first node; and communicate to other nodes of the mesh network information indicative of the first node's dynamic assignment of the first channel. | 07-02-2009 |
20090168797 | Methods and Apparatuses for Allocating Time Slots to Circuit Switched Channels - The present invention relates to methods and apparatuses for allocating time slots to circuit-switched channels established to comprise one or more respective time slots in a recurrent frame of a time division multiplexed network. According to the invention, a time slot allocated to said channel is associated with a selected level, of at least two available levels of priority. Decisions as to whether or not to deallocate said time slot from said channel is then based upon a comparison of said selected level of priority and a level of priority associated with a request for a time slot for another channel. | 07-02-2009 |
20090245275 | COMMUNICATION STATION, COMMUNICATION METHOD, COMPUTER-READABLE STORAGE MEDIUM, AND COMMUNICATION SYSTEM - A communication station receives data from a transmission station, transmits a reception response representing the data reception condition, and determines, based on reception responses from other communication stations, whether communication station which has not normally received the data from the transmission station exists among the other communications. Upon normally receiving the data from the transmission station, and determining that the communication station which has not normally received the data from the transmission station exists, the communication station transfers, to the communication station which has not normally received the data, the data received from the transmission station. upon transferring, it is decided, based on a predetermined priority order, whether or not to perform the transfer to the communication station which has not normally received the data. | 10-01-2009 |
20090268752 | METHOD, APPARATUS AND INTEGRATED CIRCUIT FOR CONTROLLING TRANSMISSION RATE - A plurality of PLC adapters, such as a master | 10-29-2009 |
20090274168 | METHOD FOR TRANSMITTING DATA FROM MULTIPLE CLOCK DOMAINS AND A DEVICE HAVING DATA TRANSMISSION CAPABILITIES - A method that includes defining a transmission schedule of a TDM data frame that includes multiple TDM time slots allocated for transmitting data over a TDM line; the method is characterized by including: providing a transmission clock signal having a transmission clock frequency to the TDM line, providing a first clock signal having a first clock frequency to data sources that belong to a first group of data sources and providing a second clock signal having a second clock frequency to data sources that belong to a second group of data sources; wherein the first clock frequency and the second clock frequency are higher than the transmission clock frequency; pre-fetching, to a first intermediate storage a data segment from a data source out of the first group of data sources in response to a fullness level of the first intermediate storage unit and to the transmission schedule; pre-fetching, to a second intermediate storage a data segment from a data source out of the second group of data sources in response to a fullness level of the first intermediate storage unit and to the transmission schedule; providing, in response to the transmission schedule, a stabilized data segment from the first or the second intermediate storage units to a transmission storage unit and transmitting the data segment from the transmission storage unit over the TDM line. | 11-05-2009 |
20090274169 | DYNAMIC LINK DISTANCE CONFIGURATION FOR EXTENDED FABRIC - A method to dynamically allocate credits for a particular port to port link based on measured link distance during the initial interswitch link configuration process. An apparatus implementing such method or a software upgrade to retrofit existing switches. | 11-05-2009 |
20090296732 | EFFICIENT ALLOCATION OF SHARED BANDWIDTH - The present invention, generally speaking, provides for sharing of bandwidth of a shared medium between multiple devices. In one embodiment, the shared medium is structured in accordance with a frame or superframe structure, each frame or superframe having medium access slots of specified time duration defined therein, groups of N contiguous medium access slots defining different allocations zones, groups of M medium access slots defining coordinated sets of medium access slots, wherein the medium access slots of a coordinated set belonging to different allocation zones are equally spaced in time. A device identifies a reservation as regular or irregular, wherein a regular reservation causes the entire medium access slots in one or more coordinated sets to be allocated. In the case of either a regular or an irregular reservation, allocating medium access slots such that a number of unallocated contiguous medium access slots within each allocation zone is maximized. The contiguous unallocated medium access slots separate the group of regular allocations and the group of irregular allocations within each allocation zone. | 12-03-2009 |
20090296733 | METHOD AND APPARATUS FOR ALLOCATING TIME SLOTS IN BASEBAND EPCN SYSTEM - A method and apparatus for allocating time slots in a baseband EPCN system is provided. The method includes: obtaining a period type of a current period; and determining a proportion between uplink time slots and downlink time slots for the current period according to the period type. According to present invention, different proportions between uplink time slots and downlink time slots may be respectively applied to different periods such as a registration period and a communication period in the baseband EPCN system. Thus, the register time of a new CNU in the registration period is shortened and the requirement for high downlink bandwidth for normal communications in the communication period is guaranteed at the same time. | 12-03-2009 |
20090304020 | Method and Arrangement in a Data Network for Bandwidth Management - An arrangement associated with a Bandwidth Manager, BM, adapted to reserve and return network resources requested from a first entity in a data network. The arrangement includes a first message rate limiter element ( | 12-10-2009 |
20090304021 | Method and System For Dynamic Resource Allocation - In a method for the dynamic assignment of resources in a communication system, a cyclical time frame of at least intermittently fixed temporal duration is predefined for the access of communication participants, time slots in the time frame being assigned to the communication participants. The duration of unused time slots is shortened, which means that additional time slots are able to be accommodated in the time frame, which are assigned to communication participants dynamically, in particular as a function of their communication requirements. | 12-10-2009 |
20090316716 | SCHEDULING SYSTEM AND SCHEDULING METHOD FOR THE SAME - A schedule management table is additionally provided in a scheduling system comprising: a time slot for specifying, in slots, the cell transfer sequence of individual lines in one turn; a cell read sequence management table having elements to which the lines are set as cell transfer objects; schedule computation means for controlling the setting of the lines to the cell read sequence management table; and allocation processing means for converting the elements of the cell read sequence management table to specified positions of the slots in the time slot. The schedule management table indicates positions, within the cell read sequence management table, to which transfer object lines are newly set, for each PCR (peak cell rate) value. The scheduling system can reduce the necessity of update of the cell read sequence management table and can execute data transfer which assures the rate of each ATM line. | 12-24-2009 |
20090323715 | PROTOCOL FOR NATIVE SERVICE TRANSPORT OVER POINT-TO-MULTIPOINT PASSIVE OPTICAL NETWORKS - A method for information transfer allowing for native transfer of voice, data, and any other digital service information over a passive optical network, comprising; the LT transmitting downstream in serially ordered frames broadcast to all of the NT's at a fixed interval; the NT's transmitting upstream in serially ordered frames, said frames being divided into serially ordered time slots, at most one NT transmitting information for at most one service type in each slot; the LT and the NT's exchanging management information, and the LT and the NT's natively transporting service information to each other in both the upstream and downstream directions, according to said management information exchanged between the LT and the NT's. | 12-31-2009 |
20100002719 | MAP MESSAGE EXPEDIENCY MONITORING AND AUTOMATIC DELAY ADJUSTMENTS IN M-CMTS - An M-CMTS compatible UEQAM device implements circuitry to identify and analyze MAP message in the data stream sent from the M-CMTS Core with respect to timing information embedded in those messages. The improved UEQAM will then create a specific message as an extension to DEPI to communicate that information to the M-CMTS Core. The M-CMTS Core will employ that analysis to automatically adjust MAP message advance time to reduce delay and thus improve system performance. This invention will provide a closed-loop between the M-CMTS Core and the UEQAM where valuable transmission information will periodically be fed back from UEQAM-to-M-CMTS Core in real-time. | 01-07-2010 |
20100014541 | Managing timing of a protocol stack - In one embodiment, the present invention includes a method for receiving a communication in a protocol stack coupled to a tunneling interconnect, determining whether a communication type is subject to altered timing to accommodate a delay associated with the tunneling interconnect, adjusting a timing of at least one stack logic to accommodate the delay, and handling the communication using the adjusted timing. Other embodiments are described and claimed. | 01-21-2010 |
20100054274 | Method for clock synchronization in a communication network, and communication network - A method for clock synchronization in a communication network, in particular one based on packet switched data transmission, is provided. A first clock signal from a first network element is used as a reference signal for synchronization of a respective second clock signal from one or more second network elements. The first clock signal is transmitted at a transmission frequency intended exclusively for the clock signal or at a transmission frequency band intended exclusively for the first clock signal to the one or the more second network elements. The first clock signal is processed in the respective second network element in order to adjust the second clock signal such that the second clock signal matches the first clock signal. | 03-04-2010 |
20100074271 | Bandwidth Management In A Network - A data stream is transmitted at a current transmission rate utilizing a first bandwidth allocation, the current transmission rate being less than an original transmission rate. A transmission rate recovery request is received from a master device on the network. The transmission rate recovery request instructs the network device to adjust the current transmission rate. An additional bandwidth allocation is obtained from the master device on the network and the current transmission rate is responsively increased to provide substantially the original transmission rate utilizing a total bandwidth allocation. The total bandwidth allocation includes the additional bandwidth allocation and the first bandwidth allocation. | 03-25-2010 |
20100111099 | COMMUNICATING IN A NETWORK THAT INCLUDES A MEDIUM HAVING VARYING TRANSMISSION CHARACTERISTICS - A method and corresponding system for operating in a network in which stations communicate over a shared medium are presented. The shared medium has at least one varying channel characteristic that varies approximately periodically. The method includes providing repeated beacon transmissions from a coordinator station for coordinating transmissions among a plurality of the stations, wherein at least some beacon transmissions are synchronized to the varying channel characteristic; and transmitting from a first station to at least one receiving station during a time slot determined based on at least one of the beacon transmissions received by the first station from the coordinator station. | 05-06-2010 |
20100128739 | METHOD AND APPARATUS OF SCHEDULING BANDWIDTH IN CABLE NETWORK - Disclosed are a method and apparatus of scheduling a bandwidth in a cable network. The method includes receiving variable information set according to a condition of a network, calculating a packet time slot value in which a delay time gain is maximized using the received variable information; setting an algorithm allocating a bandwidth between channels of the network using the packet time slot value, and operating a Cable Modem Termination System (CMTS) according to the algorithm. | 05-27-2010 |
20100142550 | METHOD, APPARATUS AND SYSTEM FOR HYBRID-MULTIPLEXING AND DEMULTIPLEXING - This invention discloses method, apparatus and system for hybrid-multiplexing and demultiplexing. The technical solution of the present invention obtains a corresponding preset frame structure parameter set in accordance with specific circumstances of the current link bandwidth, and hybrid-multiplexes byte streams of received services in accordance with the frame structure parameter set to form a multiplexed frame adapted to the current link bandwidth, so as to achieve the objective of making full use of the link bandwidth. Moreover, when the bandwidth of the physical link varies due to switching of modulation modes on the physical link, the hybrid-multiplexing apparatus adaptively changes the frame structure of the multiplexed frame without breaking off the service. In other words, the hybrid-multiplexing method supports ACM switching. | 06-10-2010 |
20100150167 | Adaptive Network to Dynamically Account for Hidden Nodes - One embodiment of the present invention relates to a network element that is configured to be associated with a network having a number of nodes. The master node is configured to communicate with a number of nodes and allocate bandwith therebetween by sending outgoing signals and receiving incoming signals over a transmission medium. The master node is further configured to adaptively account for hidden nodes with which the master node cannot bi-directionally directly communicate by communicating at least one signal with at least one proxy node. Other methods and network elements are disclosed. | 06-17-2010 |
20100158040 | JOINING PROCEDURE - There is provided a method of operating a device to join a network, the network having a plurality of superframes, each superframe being divided into slots, the method comprising transmitting a beacon frame in a first slot of a first superframe; wherein, if a collision occurs in the first slot, selecting a second slot from a group comprising the first slot and a plurality of slots occurring after the first slot; and transmitting a further beacon frame in the second slot in a subsequent superframe. | 06-24-2010 |
20100166007 | Advanced Elastic Time Recovery Mechanism Using Wildcard Searches - A scheduler for a server includes a timestamp associative array for storing timestamps. The scheduler includes an advanced elastic time recovery mechanism having a processor in communication with the associative array which uses a wildcard search to find at least one timestamp in the associative array to schedule for service by the server in a single search, and to increment operational time by more than 1 in a given clock cycle. A method of using a scheduler for a server includes the steps of storing timestamps in a timestamp associative array. There is the step of using a wildcard search of an advanced elastic time recovery mechanism having a processor in communication with the associative array to find a timestamp in the associative array to schedule for service by the server in a single search. There is the step of incrementing operational time by more than 1 in a given clock cycle. | 07-01-2010 |
20100166008 | DIGITAL DATA TRANSMITTING APPARATUS AND DIGITAL DATA RECEIVING APPARATUS - To provide a digital data transmitting apparatus and a digital data receiving apparatus that can realize, even when a transmission channel characteristic changes because of aged deterioration or the like of a relay, improvement of a reception performance following the change. | 07-01-2010 |
20100220744 | INTELLIGENT START COUPLER FOR TIME TRIGGERED COMMUNICATION PROTOCOL AND METHOD FOR COMMUNICATING BETWEEN NODES WITHIN A NETWORK USING A TIME TRIGGER PROTOCOL - This invention relates to a star coupler connected to a plurality of nodes within a network using a time triggered protocol on a time slot basis. The invention further relates to a network including a cluster having at least one node. Further, the invention relates to a method for communication between nodes within a network using a time trigger protocol. To provide a star coupler, which is able to increase the bandwidth and to communicate with low propagation delay for communicating the relevant data it is proposed to provide a star coupler ( | 09-02-2010 |
20100260200 | TRANSMISSION APPARATUS - A modulator modulates the packet data signal. A correction unit | 10-14-2010 |
20100272118 | High Speed Traffic Generator - There is disclosed a method of generating a data flow and a high speed packet generator. A sequence of packets to be transmitted may be defined. Generation of each packet in the sequence may be assigned to a respective transmit engine selected from a plurality of transmit engines. The plurality of transmit engines may generate respective assigned packets in parallel. Packets generated by the plurality of transmit engines may be coherently interleaved in the defined sequence to form the data flow. | 10-28-2010 |
20100284421 | Closed-Loop Clock Synchronization - A network comprising a destination node, and a plurality of source nodes configured to transmit high-priority data and low-priority data to the destination node, wherein the source nodes correlate the transmission of the high-priority data to the destination node such that the high-priority data from each source node does not substantially contend with the high-priority data from the other source nodes upon arrival at the destination node. Also disclosed is a network component comprising at least one processor configured to implement a method comprising creating a periodic time window, partitioning the time window into low-priority time-bands and high-priority time-bands, placing a plurality of high-priority packets in the high priority time-bands, and placing a plurality of low-priority packets in the low-priority time-bands. | 11-11-2010 |
20100309929 | SYNCHRONIZATION METHOD AND SYNCHRONIZATION APPARATUS OF COMMUNICATION SYSTEM - The present invention discloses a method and an apparatus for synchronization in a communication system, the method includes: detecting whether a user equipment is in an uplink out-of-synchronization state; triggering, by a downlink scheduling entity, an uplink enhanced random access synchronization process, if the user equipment is in the uplink out-of-synchronization state; and obtaining, by an uplink scheduling entity, a user equipment identifier sent by the user equipment on which the uplink enhanced random access synchronization process is triggered, and informing the downlink scheduling entity via an interaction with the downlink scheduling entity that uplink synchronization of the user equipment is restored. By employing the method and the apparatus of the invention, the uplink synchronization is accomplished by using the existing enhanced random access technology of the current system and via the interaction between the uplink and downlink scheduling entities, the delay of the synchronization may be shortened effectively, the data transmission efficiency and the system resource utilization are improved, and the normal sending and transmitting of the downlink data may be guaranteed. | 12-09-2010 |
20100329277 | MEDIUM ACCESS CONTROL METHOD AND SYSTEM - A medium access control method is provided in which a control station transmits one specific frame to terminal stations, thereby arranging a schedule of a data transmission time of the control station and each of the terminal stations and allowing a time zone unused by a station for data transmission to be allocated to another station. The control station transmits a schedule frame having defined therein a time occupied by each of the terminal stations, thereby reducing overhead. Also, the completion of the preceding communication performed by another station is detected, thereby effectively using an idle time of a medium and improving transmission efficiency. | 12-30-2010 |
20110013644 | SYSTEMS AND METHODS FOR PROVIDING RESOURCE ALLOCATION MEETING COMMUNICATION CONSTRAINTS FOR MULTI-HOP NETWORK DATA FLOWS - Systems and methods identify a multi-hop network data path with sufficient available resources at each node along the data path to facilitate desired end-to-end data flow. Embodiments operate to identify resource constraints for meeting QoS or other communication requirements at each node of a multi-hop data path and propagate the resource constraint information within the network for use in identifying data paths suitable for supporting a desired end-to-end data flow. A resource allocation algorithm operable to allocate resources to achieve an end-to-end data flow meeting the communication requirements is implemented according to embodiments. A resource allocation algorithm of embodiments operates to ensure efficient use of the available resources so that desired conditions are satisfied when the resource requirements are met at each intermediate node for the upstream and downstream links and also both links simultaneously. | 01-20-2011 |
20110058572 | A Method for generating the group identifier of the random access response message, and a random access method - The invention discloses a method for generating a group identifier of the random access response message. The group identifier is determined according to the serial number of the subframe in which the random access time slot of random access preamble message transmitted by the terminal lies and the serial number of the random access channel in which the random access time slot lies. A random access method and a random access response method in a cellular radio communication system are also provided. Using the method of the present invention, the terminal needs not acquire the absolute system time of the cellular system in which the random access time slot lies, and can access the cellular radio communication system rapidly and accurately. | 03-10-2011 |
20110064091 | METHOD AND APPARATUS FOR MONITORING PACKET NETWORKS - A packet probe for a packet network accurately generates and monitors packets within the network. The packet probe supports packet generation and packet transmission. When a packet is ready for transmission, a hardware-based time stamp unit affixes a time stamp to the packet reflecting an actual transmission time. The packet probe also supports receiving, filtering, and time stamping received packets. When a packet is received, a packet filter determines whether the received packet should be stored in memory along with a time stamp reflecting an actual reception time. | 03-17-2011 |
20110064092 | POINT TO MULTIPOINT CROSSLINK - A communication network comprises a first central digital subscriber line (DSL) unit having at least one application port and a plurality of DSL ports; a first remote DSL unit having at least one application port and at least one DSL port, wherein the first remote DSL unit is communicatively coupled to the central DSL unit via a first single independent DSL pair having a first EOC channel; and a second remote DSL unit having at least one application port and at least one DSL port, wherein the second remote DSL unit is communicatively coupled to the central DSL unit via a second single independent DSL pair having a second EOC channel; wherein the at least one application port in the central DSL unit is communicatively coupled to an application port in at least one of the first remote DSL unit and the second remote DSL unit. | 03-17-2011 |
20110103397 | TWO-PHASE ARBITRATION MECHANISM FOR A SHARED OPTICAL LINKS - A method for arbitration in an arbitration domain. The method includes: receiving, by each node of a plurality of nodes in the arbitration domain, an arbitration request from each sending node of the plurality of nodes in the arbitration domain, where the plurality of nodes in the arbitration domain each use a shared data channel to send data to a set of receiving nodes; assigning, by each node in the arbitration domain, consecutive time slots to each sending node based on a plurality of priorities assigned to the plurality of nodes in the arbitration domain; for each time slot: sending, from the arbitration domain, a switch request to a receiving node designated by the sending node, where the receiving node is in the set of receiving nodes; and sending, by the sending node, data to the receiving node via the shared data channel during the time slot. | 05-05-2011 |
20110103398 | TIME SLOT ALLOCATION METHOD AND APPARATUS - This method includes: judging, for each certain combination of the source and destination nodes, for which the number of time slots to be allocated is equal to or greater than 1, whether or not certain time slots exist that are capable of forming a route from the source node to the destination node by unused links; for each certain combination judged, at the judging, that the certain time slots exist that are capable of forming the route by the unused links, identifying, for each certain time slot, a shortest route among routes formed by the unused links, calculating an evaluation value from the number of hops in the shorted route, an allocated priority associated with a corresponding certain combination and the number of used links in the corresponding certain time slot; and identifying a maximum evaluation value among the evaluation values. | 05-05-2011 |
20110206061 | Individual Bit Timeslot Granular, Input Status Adaptive Multiplexing - Systems and methods enable adaptive, single bit-timeslot granular digital multiplexing capable of automatically and dynamically selecting an appropriate input bit from a set of alternative input ports, based on a current status of the alternative inputs. The invention enables input-status-adaptive, dynamic multiplexing of individual bits from multiple, e.g. byte-wide, input ports onto, e.g. a byte-wide, multiplexer output. An input status adaptive, dynamic, bit-granular M-by-M digital cross-connect can be formed out of an arrangement of M (an integer) instances of the input-controllable adaptive M:1 multiplexers. An application is a synchronous, digital network channel that can be dynamically shared, even at a single bit time-slot granularity, among multiple path sources, which furthermore can be located even at different network nodes. Such multi-source-bus configurations of adaptive-multiplexed network channels enable allocating network resources dynamically based on real-time data packet demand variations, thereby maximizing the network throughput for bursty data traffic. | 08-25-2011 |
20110206062 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND ROUTE ALLOCATION METHOD - A route allocation method including: calculating a route between a sending node and a receiving node in a network; and allocating the route to a communication slot, wherein the allocating selects route allocation for the communication slot based on a number of allocatable routes that are other routes not including a link the transfer direction of which is the same as that of a route, the link being located in the route embedded into the communication slot. | 08-25-2011 |
20110222554 | COMMUNICATION APPARATUS ENABLING TEMPORAL COEXISTENCE OF SYSTEMS - A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist. | 09-15-2011 |
20110222555 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus is provided. The communication apparatus includes a first unit for performing data communication using a bandwidth reservation type transmission area constituted by a plurality of time-divided time slots via a power line to which an alternating-current voltage is supplied. A second unit is connected to the first unit, for securing a vacant time slot out of the plurality of time-divided time slots. A third unit is connected to the first unit, for securing a time slot out of the plurality of time-divided time slots when incapable of securing the vacant time slot, the secured time slot being used in common by a first communication system used by the communication apparatus and a second communication system different from the first communication system, the second communication system using the same communication procedure as the first communication system. | 09-15-2011 |
20110228796 | Real Time Control Network System - Provided is an on-vehicle network which can improve the network use efficiency and reduce the controller processor overhead even when the same communication cycle as the frame cannot be set in the filtering condition of a communication control device. A reference signal transmission controller is arranged in a network so as to generate and transmit a reference signal in accordance with the communication cycle. A reference signal reception controller receives the reference signal and compares the reference signals to a predetermined filtering condition table. If the signal is matched with the table, the controller executes a data reception process and a data transmission process. | 09-22-2011 |
20110268132 | DEVICE AND METHOD FOR TRANSMISSION OF TDM SIGNAL OVER ASYNCHRONOUS NETWORK - A transmission device which transmits a packet to a destination transmission device through an asynchronous network, the packet accommodating a plurality of time division multiplexing (TDM) channels, includes: an unused-channel information storage section for storing unused-channel information on an unused one of a predetermined number of TDM channels; and an unused channel deletion section for deleting an unused channel from the predetermined number of TDM channels accommodated in a received packet by referring to the unused-channel information, to generate a compressed packet to transmit to the destination transmission device. | 11-03-2011 |
20110305246 | System and Method for Enhanced Physical Layer Device Interface Capability for Backward Support of Fast Retrain - A system and method for enhanced physical layer device interface capability for backward support of fast retrain. The enhanced physical layer device is configurable in its leveraging of an identified legacy signaling mechanism. The identified legacy signaling mechanism can be used by the enhanced physical layer device to suspend transmission by the media access control device to facilitate the fast retrain. | 12-15-2011 |
20120163398 | COMMUNICATION APPARATUS, RELAY APPARATUS, AND NETWORK SYSTEM - A relay apparatus of performing packet communication of time division, including: a receiver configured to receive a first data packet to be transmitted pursuant to a reservation of a time slot, a second data packet, and a control packet including first data representing which of the first data packet and the second data packet is to be transmitted in the same time slot; a processor configured to, in a case where the control packet including first data representing that the second data packet is to be transmitted in the same time slot, store in a data storage the second data packet; and a transmitter configured to transmit the second data packet stored in the data storage in a time slot not including other data packet than the second data packet. | 06-28-2012 |
20120163399 | TIME-MULTIPLEXED MULTI-WIRE COMMUNICATIONS SYSTEM - A system includes a universal transceiver and a switch coupled to the universal transceiver, wherein the switch is configured to selectively couple a terminal of the universal transceiver to one of a plurality of different physical media. The universal transceiver is configured to generate a global schedule based on at least one input received by the universal transceiver, wherein the global schedule controls the switch. | 06-28-2012 |
20120236875 | Slotted Channel Access Techniques in Network Communications - Systems and methods for designing, using, and/or implementing slotted channel access techniques in network communications are described. In some embodiments, a method may include selecting one of a plurality of time slots within a contention access period (CAP), each of the plurality of time slots having a predetermined duration, and transmitting a packet during the selected time slot. For example, the time slot may be selected randomly or based on a round-robin algorithm. In some implementations, the duration of each of the plurality of time slots may correspond and/or be equal to: (a) a duration of a data packet of maximum size, (b) a sum of durations of a request-to-send packet, an interframe space, and a clear-to-send packet, and/or (c) a duration of a guaranteed time slot (GTS) or contention free period (CFP) request packet, as prescribed by a given communication protocol or standard. | 09-20-2012 |
20120263190 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION APPARATUS CONTROL METHOD AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM - A communication apparatus performs communication of data using assigned time slots within a frame. In a case where data cannot be transmitted in a transmission time slot that has been assigned in order to transmit data, a time slot later than this transmission time slot is reserved as a time slot used to transmit the data, this later time slot being reserved within the frame having the transmission time slot in which the data cannot be transmitted. | 10-18-2012 |
20130010805 | HIGH-CAPACITY PACKET-SWITCHED RING NETWORK - A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC protocol along with an admission algorithm enhance the network throughput capacity. | 01-10-2013 |
20130016735 | METHOD AND APPARATUS FOR THE DETERMINISTIC CAPTURE OF A COMMUNICATION CHANNEL SHARED AMONG CONTENTION BASED TECHNOLOGIESAANM De Campos Cartolomeu; Paulo JorgeAACI MaiaAACO PTAAGP De Campos Cartolomeu; Paulo Jorge Maia PTAANM Gouveia Fonseca; Jose AlbertoAACI AveiroAACO PTAAGP Gouveia Fonseca; Jose Alberto Aveiro PT - Communications with timeliness guarantees, also known as real-time communications are established in a shared medium with different contention based technologies. A real-time station is able to transmit a noise sequence before the intended data packet transmission. The noise sequence being is to occupy the communication medium during a period of time preferably larger than the maximum transmission time of any contention based technology that can have access to the medium, hereinafter designated alien. As such, even if an alien station is transmitting, it will finish its packet during the transmission of the noise sequence. The method prevents the alien stations from accessing the medium as these stations will sense the medium busy after the end of their packet transmissions. This method can be used to support master-multislave real-time communications on shared media in which contention based technologies operate. | 01-17-2013 |
20130051403 | Method and Apparatus for Dynamically Allocating Upstream Bandwidth in Passive Optical Networks - One embodiment of the present invention provides a system that facilitates dynamic allocation of upstream bandwidth in a passive optical network which includes a central node and at least one remote node. Each remote node is coupled to at least one logical entity, which corresponds to a device or a user, that transmits upstream data to the central node and receives downstream data from the central node. The central node is coupled to an external network outside of the passive optical network through a shared out-going uplink. | 02-28-2013 |
20130070782 | SYSTEM AND METHOD FOR ENCODING A SLOT TABLE FOR A COMMUNICATIONS CONTROLLER - Systems and methods for encoding a slot table for a communications controller of a communications network are described. In one embodiment, a method for encoding a slot table for a communications controller of a communications network includes classifying branches of the communications network that are connected to the communications controller into at least one group, where each of the at least one group includes multiple branches, and generating a slot table entry for a time slot for accessing the communications network through the communications controller based on the at least one group. Other embodiments are also described. | 03-21-2013 |
20130070783 | SYSTEM AND METHOD FOR CREATING A SLOT TABLE ENTRY ADDRESS FOR A COMMUNICATIONS DEVICE - An invention for generating a slot table entry address for a communications device of a communications network includes a method that involves processing a slot counter value according to a configuration setting value to produce a processed slot counter value, the slot counter value identifying a time slot of data communications of the communications network, masking a cycle counter value according to the configuration setting value to generate a masked cycle counter value, where the cycle counter value identifies a communications cycle containing the time slot, and processing the processed slot counter value and the masked cycle counter value to generate a slot table entry address such that a corresponding slot table entry of the time slot of the communications cycle in a slot table is accessed by the communications device at the slot table entry address. | 03-21-2013 |
20130100962 | Dynamic Data Channel Scheduling - Data channels are sorted into an order in terms of an exponent E, where E is defined in the equation: segment interval=C*2 | 04-25-2013 |
20130121343 | METHODS AND APPARATUS FOR TRANSMISSION OF GROUPS OF CELLS VIA A SWITCH FABRIC - In one embodiment, a method can include receiving at an egress schedule module a request to schedule transmission of a group of cells from an ingress queue through a switch fabric of a multi-stage switch. The ingress queue can be associated with an ingress stage of the multi-stage switch. The egress schedule module can be associated with an egress stage of the multi-stage switch. The method can also include determining, in response to the request, that an egress port at the egress stage of the multi-stage switch is available to transmit the group of cells from the multi-stage switch. | 05-16-2013 |
20130121344 | Method and Device for Determining Timeslot Configuration in TDM Transmission - The present invention provides a method and a device for determining timeslot configuration in TDM transmission. The method includes: receiving consecutively transmitted TDM frames, wherein at least one TDM frame among the consecutively transmitted TDM frames includes a characteristic word; and according to a case of a timeslot collection occupied by the characteristic word in the TDM frame, determining a timeslot collection configured in the TDM frame for HDLC frames, wherein the characteristic word is configured to match a physical layer rate when no peer-peer protocol, PPP, link setup request packets are transmitted. Embodiments of the present invention are able to realize automatic acquisition of timeslot configuration of TDM frames. | 05-16-2013 |
20130128899 | Method and Bus Connection Unit for Unambiguously Waking Users of a Bus System - A method and a bus connection unit for selectively waking participants of a bus system in an idle state, the participants not in the idle state exchanging messages via the bus using a serial communication protocol, the messages characterized by a leading identifier, the participants not in the idle state deciding based on the identifier whether they receive the message, the messages being evaluated by the participants in the idle state in at least three phases, a number of signal properties, edges and/or edge changes being determined in a first phase, a sequence of time intervals between signal properties, edges and/or edge changes being determined in a second phase, a wake pattern being determined from the serial signal sequence of the message in a third phase, and participants in the idle state leaving the idle state as a function of the items of information determined during the three phases. | 05-23-2013 |
20130195116 | METHOD FOR COMMUNICATION IN A HVDC POWER TRANSMISSION SYSTEM, CONTROLLER UNIT AND COMPUTER PROGRAM PRODUCT - A method in a converter station for communication within a DC power transmission system including two or more interconnected converter stations includes receiving, in the converter station, a synchronization signal for synchronizing the two or more converter stations; obtaining, in the converter station, an allocation of a communication time slot; changing, in the converter station, a set-point DC voltage level during the communication time slot; and measuring, in the converter station, a change of DC current in timeslots other than the communication time slot. A communication method utilizing the DC power transmission system itself is thus provided. | 08-01-2013 |
20130208733 | COMMUNICATION SYSTEM AND SUPERIMPOSING APPARATUS - The communication system includes: first terminal devices connected to a transmission path and having terminal information; a second terminal device connected to the path and sending an information request requesting the information from the first terminal device; a first superimposing apparatus interposed between the first terminal device and the path; and a second superimposing apparatus interposed between the second terminal device and the path and receiving the request from the second terminal device. The first superimposing apparatus acquires the information from the connected first terminal device at predetermined timings and stores it. Upon receiving the request, the second superimposing apparatus sends the request to the first superimposing apparatus using a superimposed signal superimposed on a transmission signal transmitted via the path. Upon receiving the request, the first superimposing apparatus sends the information to the second superimposing apparatus using the superimposed signal. Upon receiving the information, the second superimposing apparatus provides the information to the second terminal device. | 08-15-2013 |
20130322461 | MULTIFORMAT DIGITAL AUDIO INTERFACE - Embodiments of various methods, devices and systems are described herein that use a unified bus communication protocol. One such device comprises an interface for sending and receiving signals, and a mux and sync engine coupled to the interface and configured to determine time slots for sent and received signals according to a unified bitstream frame format. The unified bitstream frame format comprises a plurality of frame channels for transmitting data in a bitstream mode of communication such that data from the frame channels are time-multiplexed across the frame channels one bit at a time, wherein one of the frame channels is allocated as a control channel comprising individual control bits from control data, and at least one of the frame channels is allocated as a virtual frame channel comprising individual data bits taken from digital word data. | 12-05-2013 |
20130322462 | UNIVERSAL SYNCHRONIZATION ENGINE BASED ON PROBABILISTIC METHODS FOR GUARANTEE OF LOCK IN MULTIFORMAT AUDIO SYSTEMS - Various embodiments are described herein related to techniques for synchronizing a slave device to a master device that communicates using a unified bus communication protocol or some aspect thereof. In one example, the method may comprise assuming a first mode of operation for the unified bus communication protocol; searching for a synchronization pattern at one or more locations in transmitted data according to the first mode of operation; obtaining synchronization when the located synchronization pattern is verified according to at least one synchronization rule for the mode of operation; and if synchronization is not obtained based on the assumed first mode of operation, a second mode of operation for the unified bus communication protocol is assumed and the searching and obtaining acts are carried out on the transmitted data according to the second mode of operation. | 12-05-2013 |
20130336334 | MULTIPLE PROTOCOL TUNNELING USING TIME DIVISION OPERATIONS - Embodiments of the invention are generally directed to multiple protocol tunneling using time division operations. An embodiment of an apparatus includes an interface for communication with a second apparatus, the interface including a shared communication link; and a multiplexer to multiplex data of each of multiple protocols into time slots for transmission, the protocols including a first protocol. The time slots are distributed among the protocols, where the distribution of the time slots among the protocols includes assigning one or more time slots to the first protocol to enable the data of the first protocol to meet one or more performance requirements for the first protocol. | 12-19-2013 |
20140003447 | COMMUNICATIONS APPARATUS, SYSTEM AND METHOD WITH ERROR MITIGATION | 01-02-2014 |
20140064302 | METHOD AND SYSTEM TO ENHANCE MANAGEMENT CHANNELS - Embodiments of the disclosure relate to a method and system for enhancing management channels. The method comprises operating TDM (Time Division Multiplex) clock frequency at a predefined rate higher than operating frequency based on available management channels. Transmitting data on the management channels using the TDM slots of a TDM based controller at a higher frequency rate. | 03-06-2014 |
20140086263 | LOGICAL LINK IDENTIFIER REGISTRATION METHOD, DEVICE, AND SYSTEM - Embodiments of the present invention provide a logical link identifier (LLID) registration method, device, and system. The method includes: receiving, by a coax media converter (CMC), a first registration request sent by at least one coaxial network unit (CNU) that is connected to the CMC, where the first registration request carries the media access control (MAC) address of the CNU; and sending, by the CMC, in a first data window allocated to the CMC by an optical line terminal (OLT), a second registration request to the OLT, where the second registration request carries a first level LLID identifier allocated to the CMC by the OLT and the MAC address of the CNU, and the first data window is used for data exchange between the CMC and the OLT. | 03-27-2014 |
20140092917 | CHANNEL HOPPING SCHEME FOR UPDATE OF DATA FOR MULTIPLE SERVICES ACROSS MULTIPLE CHANNELS - Data transmitted over different channels may be updated by receiving one or more input data streams containing data for one or more digital data services, wherein the data is in the form of a plurality of packets, wherein each packet includes information identifying a channel and a number of related downstream packets; determining from the plurality of packets a time that an update packet containing data for one of the digital data services will be transmitted as part of the signal; and generating a schedule packet containing the time that the update packet will be transmitted as part of a signal. | 04-03-2014 |
20140105223 | PRE-AUTHORIZATION OF BEARER SET-UP - A request is received to install control rules before having received a corresponding QoS Authorization, especially where the QoS Authorization requires a prior reservation of resources. The request for a bearer resource is pre-authorized before having received a QoS authorization for said request, by receiving a request for a bearer resource; determining that a QoS authorization has not been received yet; pre-authorizing said request for the bearer resource by installing initial control rules; and updating the previously installed initial control rules with final control rules upon receipt of the QoS authorization. This pre-authorization and the submission of initial control rules are carried out from a PCRF server towards a PCEF device, before having received the QoS authorization. In particular, the pre-authorization may be triggered from a P-CSCF at the originating or destination side, or at both. | 04-17-2014 |
20140126583 | Systems and Methods for Segment Synchronization - The embodiments described herein include systems and methods for synchronized execution of macrocycles of similar duration across communications segments of a control system. Such synchronized execution approach enables a reduced control system response time by increasing the predictability of execution timing of one segment with regards to alternative segments. Thus, the control system may be able to more accurately and precisely provide control functionality | 05-08-2014 |
20140177646 | NETWORK TERMINAL, COMMUNICATION METHOD, AND PROGRAM - A network terminal including a communication unit for communicating with a device with which the network terminal communicates through a communication path, and a control unit for causing the communication unit, by controlling the communication unit, to transmit to the device a communication packet for maintaining the communication path at a transmission timing in every predetermined interval, wherein by controlling the communication unit, the control unit further causes the communication unit to transmit, if a terminal state of the network terminal is changed, to the device an information packet obtained by including terminal state information indicative of the terminal state in the communication packet, through the communication path even at a time different from the transmission timing. | 06-26-2014 |
20140185630 | Systems And Methods For Performing Fiber Node Splits Using Remote QAM Modulation And Demodulation - Systems and methods are provided for performing fiber node splits in DOCSIS cable systems by performing remote modulation and/or demodulation in the fiber node. In the downstream direction, a high-speed digital fiber optic interface can be used to send data from the CMTS to the fiber node, which then modulates the data onto separate downstream interfaces for subsequent distribution of the downstream data to CMs and/or STBs. In the upstream direction, different upstream interfaces from the CMs and/or STBs may be demodulated into digital streams which can then be combined into a single, time division multiplexed digital stream that is transmitted to the CMTS. As such, the modulation and demodulation functions are performed remotely in the fiber node instead of at the CMTS. This allows the fiber portion of the network to use less-expensive, off-the-shelf networking technologies such as Ethernet, and allows for more data to be sent over the fiber network such that additional fibers and/or wavelengths are not required when performing a node split. | 07-03-2014 |
20140247834 | INCREASED BANDWIDTH ENCODING SCHEME - Embodiments of various methods, devices and systems are described herein that correspond to an encoding scheme that can be used with various communication protocols for increased bandwidth over a single wire bus or a wireless single transmission channel. For example, a method of encoding a series of data bits to increase bandwidth may comprise selecting a data bit in the series of data bits, generating an inverted version of the selected data bit, positioning the inverted version of the selected data bit in a consecutive fashion with respect to the selected data bit to signify an edge of a clock signal, and transmitting the inverted version of the selected data bit and the series of data bits with each bit being transmitted in a single unique time slot. | 09-04-2014 |
20140269759 | SCHEDULE-BASED PRIORITIZATION IN CONTENTION-BASED SHARED-MEDIA COMPUTER NETWORKS - In one embodiment, an intermediate node in a contention-based shared-media computer network determines a scheduled window within which a packet (with an assigned priority) should be transmitted by the intermediate node. In particular, the intermediate node may specifically determine whether an actual transmission time is prior to, during, or after the window, and sets a priority of the packet as either i) a reduced priority when the actual transmission time is prior to the window, ii) the assigned priority when the actual transmission time is during the window, or iii) an augmented priority when the actual transmission time is after the window. As such, the intermediate node may then transmit the packet from the intermediate node with the set priority at the actual transmission time. | 09-18-2014 |
20140286353 | COMMUNICATION SYSTEM AND TRANSMISSION UNIT EMPLOYED IN SAME - Transmission and reception of data can be performed between first terminal communicating by transmission signal and second terminal communicating by superimposition signal superimposed on transmission signal. When detecting interrupt signal generated by first monitoring terminal, in interrupt segment of transmission signal, transmission unit makes response requesting unit transmit response requesting data to first monitoring terminal in transmission segment. Response receiving unit receives response data that is transmitted in reply segment, in response to response requesting data, by first monitoring terminal that has generated interrupt signal. Segment securing unit transmits, in transmission segment, securing data for securing reply segment for superimposition of superimposition signal, by prohibiting transmission of response data in reply segment, with specific response data as trigger. Transmission unit makes superimposition communication unit transmit, to second control terminal, control data in reply segment secured through securing data, with superimposition signal. | 09-25-2014 |
20140376567 | OVERLAYING RECEIVE SCHEDULES FOR ENERGY-CONSTRAINED DEVICES IN CHANNEL-HOPPING NETWORKS - In one embodiment, a time at which a first device in a frequency-hopping communication network is expected to transmit a data message is determined. A first schedule is then generated based on the determined time, and the first schedule is overlaid on a frequency-hopping schedule for a second device in the network. The first schedule defines a first timeslot during which the second device listens for the data message, while the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network. Notably, a duration of the first timeslot is greater than respective durations of the second timeslots. | 12-25-2014 |
20150117465 | COMMUNICATION CONTROL APPARATUS AND COMMUNICATION CONTROL METHOD - A communication control apparatus includes a high-reliability-signal transmission and reception control unit configured to perform control for continuously transmitting the high-reliability signal a specified number of times according to transmission timing specified within a transmission period, a transmission scheduler unit configured to calculate, on the basis of the specified transmission timing, a free time in which the high-reliability signal is not transmitted, and a non-high-reliability-signal transmission and reception control unit configured to perform, when the non-high-reliability signal cannot be transmitted within the free time, control for dividing the non-high-reliability signal into a size transmittable in the free time and transmitting the non-high-reliability signal as two or more packets. The transmission scheduler unit transmits the high-reliability signal at the specified transmission timing and transmits the divided non-high reliability signal in the free time. | 04-30-2015 |
20150139247 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - In communication method for communicating via a transmission channel to which first communication apparatuses communicating based on a first communication system, second communication apparatuses communicating based on a second communication system, and third communication apparatuses communicating based on a third communication system are connected, a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the first communication apparatuses, the second communication apparatuses, and the third communication apparatuses, respectively. In the communication method, notices of the data transmission for each of the first communication apparatuses, the second communication apparatuses and the third communication apparatuses are transmitted within the notification domain, and the data transmission domain is reallocated in accordance with the notices transmitted from the first, second and third communication apparatuses. | 05-21-2015 |
20150146743 | ELECTRONIC DEVICE, METHOD OF TRANSMITTING AND RECEIVING STREAM IN ELECTRONIC DEVICE, PROGRAM, HOST DEVICE, AND METHOD OF TRANSMITTING AND RECEIVING STREAM IN HOST DEVICE - There is provided an electronic device including a composite stream generation unit to generate a composite stream by combining transport stream packets of transport streams, a stream transmission unit to transmit the composite stream to an external device, a processing information output unit to output processing information for processing each transport stream packet of the composite stream according to a transmission timing of each transport stream packet, a processing information delay unit to output the processing information with a delay of an amount of time corresponding to a delay time from reception to transmission of the composite stream at the external device, a stream reception unit to receive the composite stream from the external device, and a processing unit to process each transport stream packet of the composite stream based on the processing information that has been output with the delay and corresponds to each transport stream packet. | 05-28-2015 |
20150333857 | HIERARCHICAL SCHEDULER FOR DETERMINISTIC NETWORKING - In one embodiment, a method is disclosed in which a device identifies a set of data stream rates for a plurality of data streams. A Huffman tree is constructed for data transmission time slots based on the set of data stream rates. A number of time slots assigned to a parent node in the tree are determined and evenly distributed to child nodes of the parent node, to assign the time slots to the data streams. | 11-19-2015 |
20150372717 | SLOTTED MESSAGE ACCESS PROTOCOL FOR POWERLINE COMMUNICATION NETWORKS - A slotted message access protocol can be implemented for transmitting messages in a communication network. A beacon period may be divided into multiple communication slots. A master device may register a client device and provide registration information to allow the client device to operate in the communication network. The registration information may be determined based, at least in part, on a location of the client device in the communication network. As part of the registration information, contention-free communication slots may be assigned for use by the client device. Contention-based communication slots may also be assigned to a group of client devices. Messages may also be segmented depending on whether the message is transmitted in a contention-free or a contention-based communication slot. Furthermore, a relay device may be designated to retransmit a message (received from an original transmitting device) during a communication slot assigned to the original transmitting device. | 12-24-2015 |
20160050301 | SYSTEM INTERCONNECT DYNAMIC SCALING HANDSHAKE USING SPARE BIT-LANE - A communications technique using spare bit-lanes to communicate changes in interface physical link layer bandwidth and/or active width provides for dynamic adjustment of power consumption of interface links without requiring a separate control path for exchanging the change information. One or more spare bit-lanes are used to communicate an indication of the operating frequency/active width change to the physical link layer of the remote side of the interface and an acknowledgement is sent back to provide complete handshaking of the operating characteristic change. The method can determine whether or not a spare bit-lane is available and prevent making the change if a spare bit-lane is not available until the interface is repaired and a spare bit-lane can then be used for communicating operating changes in operating frequency/active width. | 02-18-2016 |
20160205589 | METHOD FOR TRANSPORTING ETHERNET AND NON-ETHERNET TRAFFIC OVER THE SAME MEDIUM | 07-14-2016 |