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公开(公告)号：EP2837121A1
公开(公告)日：2015-02-18
申请号：EP13725761.4
申请日：2013-04-03
发明人： XIA, Ming , DAHLFORT, Stefan
IPC分类号： H04J14/02
摘要： Methods and apparatus are disclosed for performing a spectrum assignment and route selection algorithm in an optical WDM network. The optical WDM is assigned an optical band of frequencies. In accordance to the present invention, a new spectrum assignment in the optical band always adjoins a spectrum assignment previously allocated. The very first spectrum assignment may be made to start with one end frequency in the optical band. Given a spectrum demand, one or more spectrum assignments are identified and one or more feasible routes are determined. Among the one or more feasible routes, an optimal route may be selected based on a set of pre-defined criteria. The spectrum assignment and route selection algorithm disclosed herein reduces computational complexities and improves spectrum efficiencies.
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公开(公告)号：EP2909959A1
公开(公告)日：2015-08-26
申请号：EP13706318.6
申请日：2013-01-30
发明人： DAHLFORT, Stefan , XIA, Ming
IPC分类号： H04J14/02
CPC分类号： H04J14/0204 , H04J14/0205 , H04J14/0212
摘要： The present invention relates to a node of an optical network, methods and service edge hub devices attachable to an optical network carrying data traffic comprising data information on a number of optical wavelength channels in one or more optical fibers. said hub device comprising one or more optical ports connectable to one or more service equipment arrangements for digital processing the received data information, the hub comprising a wavelength switching means configured to connect each channel to the ports, wherein the wavelength switching means comprises an optical splitter arrangement for spreading and directing the channels to the different ports, in one direction, and network ports, in the other direction.
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公开(公告)号：EP2502371B1
公开(公告)日：2014-01-08
申请号：EP09774988.1
申请日：2009-11-18
CPC分类号： H04Q11/0067 , H04L7/041 , H04Q2011/0064 , H04Q2011/0083
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4.发明公开SYSTEM, LASER-ON-CMOS CHIP, AND METHOD FOR SETTING A WAVELENGTH TO BE USED BY THE LASER-ON-CMOS CHIP 有权系统，激光-ON CMOS芯片和方法，用于设置波长激光单芯片CMOS
公开(公告)号：EP2671331A1
公开(公告)日：2013-12-11
申请号：EP12701171.6
申请日：2012-01-05
发明人： DAHLFORT, Stefan
IPC分类号： H04B10/26
CPC分类号： H04B10/2587 , H04B10/5162 , H04B10/801 , H04J14/0256
摘要： A system, a Laser-on-CMOS chip, and a method are described herein in accordance with the present invention. In one embodiment, the present invention enables a conventional WDM-capable system to dictate what wavelengths a Laser-on-CMOS chip's optical ports will use by seeding each of their LoC upstream reflective light generation devices (e.g., RSOAs) with a particular wavelength.
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公开(公告)号：EP2826178A1
公开(公告)日：2015-01-21
申请号：EP13718641.7
申请日：2013-03-05
发明人： DAHLFORT, Stefan , CAVALIERE, Fabio
IPC分类号： H04J14/02
CPC分类号： H04J14/0212
摘要： A peer network node, along with other peer network nodes, forms a higher- tiered optical network that transports wavelength division multiplexed traffic for multiple lower-tiered optical networks. The node comprises a plurality of dedicated bidirectional optical ports, including two or more lower-tiered ports and one or more peer ports. The node also comprises one or more hub-side bidirectional optical ports, and a switching circuit. The switching circuit is configured to distribute traffic received at the one or more hub-side ports to respective dedicated ports, for dedicated transport to one or more of the lower-tiered networks and peer network nodes. The switching circuit is also configured to direct any traffic received at the dedicated ports to the one or more hub-side ports for transport to a hub node, even if that traffic is actually destined for one of the lower-tiered networks to which a lower-tiered port is connected.
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6.发明公开
公开(公告)号：EP2815527A1
公开(公告)日：2014-12-24
申请号：EP12868678.9
申请日：2012-02-16
CPC分类号： H04J14/0227 , H04B10/27 , H04J14/0272 , H04L41/082 , H04Q11/0067 , H04Q2011/0079 , H04Q2213/1301
摘要： An ONT and a method therein for maintenance and administration of the ONT are provided. The ONT is comprised in an Optical Distribution Network, ODN. The method comprises connecting 210 an OLT in the ODN to a maintenance unit comprised in the ONT when a first signal is received from the OLT instructing the ONT to enter a maintenance mode. The method comprises updating 220 existing maintenance and administration information in the maintenance unit, the maintenance and administration information relating to the operation of the ONT when receiving new maintenance and administration information from the OLT. The method comprises connecting 230 the OLT to a host which host is connected to the ONT when receiving, from the OLT, a second signal instructing the ONT to enter an operation mode, or after a predetermined period of time; and operating 240 the ONT in accordance with the updated maintenance and administration information in the maintenance unit.
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公开(公告)号：EP2258152A1
公开(公告)日：2010-12-08
申请号：EP08712845.0
申请日：2008-02-27
IPC分类号： H05K7/14 , H04L12/02 , H04Q1/02 , H05K7/02 , H04L12/00 , H04L12/04 , H04L12/24 , H04L12/44 , H05K7/10
摘要： It is an object of the present invention to provide switching equipment for communications networks, which switching equipment supports high-speed signalling between switch cards and line cards. Hence, the invention relates to a switching device for communications networks comprising a plurality of line cards and at least one switch card. The line cards comprise connection means arranged on or close to one edge of each line card, and the at least one switch card comprises matching connection means arranged on one flat side of said switch card. In this way, when said switch card is arranged substantially perpendicular to said line cards with said flat side of the switch card facing and at least partially overlapping said edges of the line cards, interconnection is achieved between the connection means of the line cards and the matching connection means of the at least one switch card.
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公开(公告)号：EP2939357A2
公开(公告)日：2015-11-04
申请号：EP13818844.6
申请日：2013-11-28
发明人： SKUBIC, Björn , DAHLFORT, Stefan , LARAQUI, Kim , ÖHLÉN, Peter , XIA, Ming
CPC分类号： H04J14/0267 , H04L41/0803 , H04L41/12 , H04L41/5058
摘要： A hub node in a wavelength division multiplexed optical network automatically discovers at least one of new client-side optical ports and new edge-side optical ports. The hub node comprises a wavelength switch network, port discovery equipment, and a controller. The wavelength switch network routes any wavelength channel that does not support a matching pair of client-side and edge-side ports to port discovery equipment at the hub node. The port discovery equipment searches for new ports, and, responsive to finding a new port, automatically discovers a predefined set of one or more attributes of the new port. The controller determines that a client-side port and an edge-side port are a matching pair of ports if discovered sets of attributes of those ports match according to one or more predefined rules. The controller then controls the wavelength switch network to re-route the wavelength channel supporting that matching pair between those ports.
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9.发明授权METHOD AND DEVICE FOR FIBER ACCESS PHYSICAL LAYER UNBUNDLING USING MULTIPLE UPLINK CARDS 有权方法和设备分拆物理层光纤接入使用多条上行链路卡
公开(公告)号：EP2673904B1
公开(公告)日：2014-11-05
申请号：EP12704140.8
申请日：2012-01-24
发明人： DAHLFORT, Stefan
CPC分类号： H04J14/0282
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公开(公告)号：EP2710811A1
公开(公告)日：2014-03-26
申请号：EP11865473.0
申请日：2011-05-17
CPC分类号： H04B10/032 , H04B10/25753 , H04J14/0287 , H04W24/04 , H04W88/085
摘要： An Optical Network Unit, ONU, and an Optical Line Terminal, OLT, as well as a respective method therein, are provided for enabling the ONU to communicate with the OLT. The ONU and at least one OLT are comprised in a passive fibre optic access network. The passive fibre optic access network comprises two fibre paths through the network, a main fibre path and a back-up fibre path, connecting the ONU with the OLT. When a fault is detected in the main fibre path is detected, transmission rate negotiation is performed between the ONU and the OLT over the back-up path. When a transmission rate is agreed upon between the ONU and the OLT during said transmission rate negotiation with regard to communication over the back-up path, the communication between the ONU and the OLT is executed using the agreed transmission rate over the back-up path.
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