Patent classifications
H04Q2011/0075
Bus FC-AE-1553 network system and a method of data transmission and acquisition
The present application relates to a bus FC-AE-1553 network system and a method of data transmission and acquisition. The bus FC-AE-1553 network system includes a network controller, at least one network terminal, a bus optical distribution network, an optical splitter and a network matching device. The network controller optical distribution networks used for managing a communication process of the whole bus FC-AE-1553 network system; the network terminal optical distribution networks used for passively receiving an instruction of the network controller in the FC-AE-1553 network system, and completing an operation for the instruction of the network controller; the optical splitter is used for realizing branching of a fibre channel signal; and the network matching device is used for terminal matching of the bus optical distribution network, and realizing sequence forwarding.
OSPFTE extension to support GMPLS for flexible grid
A method and system are disclosed in which a link state advertisement message (LSA) conforming to a Generalized Multiprotocol Label Switching (GMPLS) routing protocol is generated and transmitted. The LSA is associated with a TE Link between a transmit node and a receive node in a network. The transmit node supplies a plurality of optical signals, each of which has a plurality of frequencies, the frequencies being allocated among a plurality of spectral portions such that the plurality of spectral portions are grouped into a plurality of frequency slots. The LSA may include information indicative of a number of spectral portions, e.g., spectral slices, which correspond to frequencies of selected ones of the plurality of optical signals, said selected ones of the plurality of optical signals being available to carry data from the transmit node to the receive node.
COMMUNICATION ROUTE ALLOCATION DEVICE, COMMUNICATION ROUTE ALLOCATION METHOD, AND PROGRAM
An aspect of the present invention is a communication route allocation device including a route possibility extraction unit configured to extract connectable possible routes on the basis of utilization condition information of a network from among optical path routes connecting start points to end points of optical paths accommodating communication demand in the network, a core selection unit configured to select a core, a link, and the optical path route to accommodate the optical paths by leveling wavelength utilization conditions over the entire network on the basis of utilization condition information of multicore fibers of all links in the network or the possible routes, and a wavelength selection unit configured to select a wavelength to be used for the core, the link, and the optical path route selected by the route possibility extraction unit and the core selection unit.
Communication platform with flexible photonics payload
A communication platform (e.g., a flexible satellite) includes electrical to optical converters configured to convert input electrical signals to input optical signals, an optical switching network connected to the electrical to optical converters that choose which input optical signals to route to which output beams, tunable optical filters (connected to the switching network) that are configured to select programmable sub-bands of the input optical signals to create output optical signals, and optical to electrical converters (connected to the tunable optical filters) that are configured to convert the output optical signals to output electrical signals for the output beams.
Management of flexible grid and supercarriers in optical networks using a data model
A method of managing optical services in a node in an optical network utilizing a flexible grid includes utilizing a Media Channel (MC) Trail Termination Point (TTP) to model frequency allocation of a MC on the node; utilizing a Network Media Channel (NMC) Connection Termination Point (CTP) to model a specific port for an optical channel corresponding to the NMC; utilizing a NMC cross connection (CRS) to model a path of the NMC in the MC; and programming hardware in the node based on the MC TTP, the NMC CTP, and the NMC CRS.
OPTICAL TRANSCEIVER HAVING SWITCHABLE MODES CORRESPONDING TO DIFFERENT DATA BANDWIDTHS
An optical transceiver includes electrical inputs that each correspond to a selected port of a number of network ports and a selected network lane of the selected port. The optical transceiver includes optical transmitters organized in groups to optically transmit data received at the inputs over a plurality of optical transmission fibers to which the groups correspond. The optical transceiver includes multiplexers corresponding to the transmission fibers. Each multiplexer is to wave-division multiplex the data transmitted by the transmitters within the group corresponding to the transmission fiber to which the multiplexer corresponds. The optical transceiver includes hardware logic to differently map the inputs to the transmitters according to a selected mode of a number of switchable modes corresponding to different data transmission bandwidths.
Management of flexible grid and supercarriers in optical networks using a data model
A method of managing optical services in a node in an optical network utilizing a flexible grid includes utilizing a Media Channel (MC) Trail Termination Point (TTP) to model frequency allocation of a MC on the node; utilizing a Network Media Channel (NMC) Connection Termination Point (CTP) to model a specific port for an optical channel corresponding to the NMC; utilizing a NMC cross connection (CRS) to model a path of the NMC in the MC; and programming hardware in the node based on the MC TTP, the NMC CTP, and the NMC CRS.
APPARATUS AND METHOD FOR TWO-WAY DELAY ERROR COMPENSATION IN COMMUNICATION SYSTEM
Proposed is an operation method for two-way delay error compensation, the method including first to sixth steps. In the first step, a first wavelength is set as a signal wavelength for a master and a third wavelength is set as a signal wavelength for a slave. In the second step, first, second, third, and fourth time points are identified by using PTP. In the third step, a second wavelength is set as a signal wavelength for the master and the second wavelength is set for the slave. In the fourth step, fifth, sixth, seventh, and eighth time points are identified by using the PTP. In the fifth step, a delta value for a two-way delay error is identified on the basis of the first to eighth time points. In the sixth step, a compensation value of the two-way delay error is identified on the basis of the delta value.
Systems and methods for preventing service interruption when troubleshooting a passive optical network
A device may comprise a first portion and a second portion. The first portion may comprise a plurality of slots configured to receive a plurality of fiber optic cables. Each fiber optic cable may be received in a respective slot of the plurality of slots. The second portion may comprise a plurality of protruding members configured to bend the plurality of fiber optic cables, received in the first portion, to cause the plurality of fiber optic cables to emit light. The second portion may further comprise the light detection unit. The light detection unit may be configured to determine whether light emitted by a fiber optic cable is detected; and provide an indication regarding a port of the plurality of ports based on determining that the light, emitted by the fiber optic cable, is detected. The fiber optic cable may be connected to the port.
MULTI-LAYER MECHANISMS TO OPTIMIZE OPTICAL TRANSPORT NETWORK MARGIN ALLOCATION
A method and apparatus for optimizing optical transport using a software defined network (SDN) controller are disclosed herein. The SDN controller may define a margin optimization function based on at least one optical system performance metric. The function may include at least one related initiation criterion. Further, the SDN controller may collect at least one measurement for the performance metric. The measurement may include an assessment of deployed carriers not carrying client data. The SDN controller may determine whether the initiation criterion is met based on at least one collected measurement. The SDN controller may select a system margin optimization mechanism and define a system margin optimization threshold criterion on a condition that the initiation criterion is met. The SDN controller may determine whether the optimization threshold criterion is met. The SDN controller may implement one or more optimization events on a condition that the optimization threshold criterion is met.