公开(公告)号：EP2751942B1

公开(公告)日：2018-08-08

申请号：EP12758964.6

申请日：2012-09-04

申请人： Alcatel Lucent

发明人： SETHUMADHAVAN, Chandrasekhar ,  LIU, Xiang ,  WINZER, Peter, J. ,  GNAUCK, Alan, H.

IPC分类号： H04J14/04 ,  H04J14/02 ,  G02B6/26

CPC分类号： H04Q11/0003 ,  G02B6/02042 ,  G02B6/26 ,  H04J14/02 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/04

公开(公告)号：EP2835922B1

公开(公告)日：2018-08-01

申请号：EP14155781.9

申请日：2014-02-19

申请人： ADVA Optical Networking SE

发明人： Bryskin, Igor

IPC分类号： H04J14/02

CPC分类号： H04L45/02 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005

摘要： An asymmetrical network switch adapted (S) to auto-discover and advertise into a traffic engineering, TE, domain a switch detailed connectivity matrix, SDCM, containing for each allowed switching combination of interfaces of said asymmetrical network switch (S) at least one switch detailed connectivity matrix entry, SDCME, wherein each said SDCME represents an internal to said asymmetrical network switch potential connection interconnecting the interfaces of said interface switching combination, wherein a SDCME advertisement includes a switch detailed connectivity matrix entry cost vector, SDCME CV, which comprises a set of attributes describing cost penalties in terms of various service characteristics that a network service incurs if it selects a path or a tree traversing the asymmetrical switch (S) in accordance with the SDCME.

公开(公告)号：EP3058627B1

公开(公告)日：2018-07-25

申请号：EP14853262.5

申请日：2014-10-15

申请人： Elenion Technologies, LLC

发明人： BAEHR-JONES, Thomas ,  LIU, Yang ,  DING, Ran

IPC分类号： H01S3/08 ,  H04B10/50 ,  H04J14/02

CPC分类号： H04J14/02 ,  H04B10/503 ,  H04B10/506 ,  H04B10/54

摘要： A transmitter comprising a plurality of modulator and multiplexer (Mod-MUX) units, each Mod-MUX unit operating at an optical wavelength different from the other Mod-MUX units. The transmitter can additional include in each Mod-MUX unit two optical taps and three photodetectors that are configured to allow the respective Mod-MUX unit to be tuned to achieve thermal stabilization and achieve effective modulation and WDM operation across a range of temperatures. The Mod-MUX transmitter avoids the use of a frequency comb. The Mod-MUX transmitter avoids cross-modulation between different modulators for different laser signals.

公开(公告)号：EP2883314B1

公开(公告)日：2018-07-25

申请号：EP13827264.6

申请日：2013-08-08

申请人： ZTE (USA) Inc.

发明人： YU, Jianjun

IPC分类号： H04B10/25 ,  H04B10/61 ,  H04L27/01 ,  H04B10/516 ,  H04B10/556 ,  H04J14/02 ,  H04J14/06 ,  H04L25/03 ,  H04L27/20 ,  H04L27/22 ,  H04L27/34 ,  H04L27/00

CPC分类号： H04B10/6165 ,  H04B10/5167 ,  H04B10/5561 ,  H04B10/6162 ,  H04B10/6166 ,  H04J14/02 ,  H04J14/0282 ,  H04J14/06 ,  H04L25/03019 ,  H04L27/01 ,  H04L27/2096 ,  H04L27/223 ,  H04L27/34 ,  H04L2027/0048 ,  H04L2027/0067

摘要： Systems, devices and techniques for receiving a signal comprising a quadrature duobinary modulated signal include performing channel equalization of the received signal using a constant multi-modulus to obtain a set of channel estimation coefficients and a stream of symbols, partitioning, based on modulus, the stream of symbols into three partitions, estimating carrier frequency based on the partitioned stream of symbols, recovering a phase of the signal using a maximum likelihood algorithm, and decoding the partitioned stream of symbols to recover data.

公开(公告)号：EP2811667B1

公开(公告)日：2018-07-25

申请号：EP14171565.6

申请日：2014-06-06

申请人： THALES

发明人： Le Kernec, Arnaud ,  Dervin, Mathieu ,  Sotom, Michel

IPC分类号： H04B10/118 ,  H04B10/112 ,  H04J14/02

CPC分类号： H04J14/02 ,  H04B10/112 ,  H04B10/118 ,  H04B10/25752 ,  H04B10/29

公开(公告)号：EP3306842A4

公开(公告)日：2018-07-04

申请号：EP16799117

申请日：2016-04-01

申请人： ZTE CORP

发明人： ZHANG LIJUN ,  ZHANG MINGCHAO

IPC分类号： H04J14/02 ,  H04B10/25

CPC分类号： H04J14/0228 ,  H04B10/25 ,  H04J14/02 ,  H04J14/0221

摘要： A distributed Automatic Power Optimization (APO) system and method are provided. The distributed APO system includes: one or more APO modules and a network management system. The one or more APO modules belong to one or more pre-divided APO links. Each APO module in the one or more APO modules belongs to only one APO link. Each APO module in one APO link is in one to one correspondence with every two adjacent stations in the APO link, and the APO module is configured to, when the APO link to which the APO module belongs is triggered to perform power regulation, regulate a power attenuation or a gain between the two adjacent stations corresponding to the APO module and report a regulation result. The network management system is configured to, when learning that all of one or more APO modules in one APO link are successful in regulation, if there is a next APO link of the APO link, trigger the next APO link of the APO link to perform power regulation.

公开(公告)号：EP2690802B1

公开(公告)日：2018-07-04

申请号：EP12761362.8

申请日：2012-03-21

申请人： Telnet Redes Inteligentes, S.A.

发明人： CORTÉS SANTAOLALLA, Francisco javier ,  RODRIGO ÁLVAREZ, Gonzalo Pedro ,  BENEDÍ SÁNCHEZ, Octavio ,  FERNÁNDEZ GRACIA, Héctor ,  PÉREZ RESA, Adrián ,  POZO ESPINOSA, Amador ,  VICASTILLO BARRABÉS, Carlos

IPC分类号： H04Q11/00 ,  H04J14/02 ,  H04B10/07 ,  H04B10/272 ,  H04B10/27 ,  H04B10/079 ,  H04B10/073

CPC分类号： H04B10/0791 ,  H04B10/073 ,  H04B10/27 ,  H04B10/272 ,  H04J14/02 ,  H04Q11/0067 ,  H04Q2011/0083

摘要： The invention relates to a system for the certification of a passive optical network and for the detection of problems and faults in the last fibre legs, which is suitable for use in passive optical networks which, between the OLT device housed in a telephone central office and the user device of ONT, includes optical dividers or splitters which, in the downward direction, distribute the optical signal to all of the users within a tree-and-branch architecture, and in the upward direction, combine the optical signals from all of the ONTs. The system is based on the incorporation of a group of devices known as an OLT emulator and a remote testing unit which are joined to the corresponding wall socket of the telephone central office and user, such that the remote testing unit is positioned facing an OLT in operation, allowing the certification of the last leg of the optical network and the detection of problems and faults in a PON network in operation.

公开(公告)号：EP3208957A4

公开(公告)日：2018-06-20

申请号：EP15863525

申请日：2015-11-26

申请人： NIPPON TELEGRAPH & TELEPHONE

发明人： YAMADA YOSHIAKI ,  SHINTAKU KENGO ,  OHARA TAKUYA ,  KITAMURA KEI ,  KOTANIGAWA TAKASHI ,  HAMANO TAKAFUMI ,  ARAI KAORU ,  YOKOTA MASAHIRO ,  MAEDA HIDEKI

IPC分类号： H04J3/16 ,  H04J3/00 ,  H04J3/07 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08

CPC分类号： H04J3/0652 ,  H04J3/0623 ,  H04J3/07 ,  H04J3/1652 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04J2203/006

摘要： An optical transport system includes: a transport frame generation unit that divides a transport frame in which a plurality of client signals are accommodated into a plurality of transmission signals; a plurality of subcarrier transmission units that convert the plurality of transmission signals into optical signals using different optical carriers and transmit the converted optical signals; a plurality of subcarrier reception units that receive the transmitted optical signals and convert the optical signals into reception signals; a transport frame termination unit that combines the reception signals to restore the transport frame; a time-demultiplexing processing unit that time-demultiplexes the restored transport frame to be separated into the plurality of client signals; and a time slot control unit that determines a new time slot allocation when time-multiplexing the plurality of client signals in the transport frame and stops supply of electric power to a subcarrier transmission unit and a subcarrier reception unit that transmit and receive an optical signal to which the client signals are not allocated.

公开(公告)号：EP3203660A4

公开(公告)日：2018-06-20

申请号：EP15846691

申请日：2015-09-29

申请人： NEC CORP

发明人： MIKAMI SATOSHI

IPC分类号： H04B10/85 ,  G02B6/293 ,  H04J14/00 ,  H04J14/02

CPC分类号： G02B6/2932 ,  G02B6/29322 ,  G02B6/29383 ,  H04B10/85 ,  H04J14/00 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0213

摘要： In order to prevent a signal which a terminal station does not require from being intercepted by the terminal station without greatly changing the power of optical signals to be transmitted from a node to the terminal station, a node device is provided with: a first optical unit (6) which outputs a first optical signal (1) received from a first terminal station (51) and addressed to a second terminal station (52), and a second optical signal (2) received from the first terminal station (51), addressed to a third terminal station (53), and having a different wavelength band from the first optical signal; and a second optical unit (10,11,16) to which the first and second optical signals outputted from the first optical unit (6) are inputted, and which shifts the frequency of the first optical signal by a predetermined amount to create a fourth optical signal (4), passes the second optical signal without any change, couples the second and fourth optical signals, and transmits a resultant signal to the third terminal station.

公开(公告)号：EP2733879B1

公开(公告)日：2018-06-20

申请号：EP12007779.7

申请日：2012-11-16

申请人： ADVA Optical Networking SE

发明人： Eiselt, Michael ,  Pachnicke, Stephan

IPC分类号： H04B3/32 ,  H04J14/06 ,  H04J14/02

CPC分类号： H04B3/32 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/06

摘要： The invention relates to a method for transmitting an optical digital WDM signal over an optical transmission link or a passive optical network, the optical WDM signal (S WDM ) including N optical channels matching a given optical frequency grid, the method comprising the steps of: supplying the WDM signal (S WDM ) to a near end of the optical transmission link (5) or a near end of the passive optical network; receiving the WDM signal (S WDM ) at a far end of the optical transmission link or at one or more far ends of the passive optical network; separating the optical channel signals (s i (t)) by splitting and bandpass filtering the WDM signal (S WDM ) received; and converting the optical channel signals (s i (t)) into electrical channel signals using direct optical detection. The method is characterized in that the optical WDM signal (S WDM ) is created such that neighboring channel signals (s i (t)) are orthogonally polarized. Moreover, the invention relates to an optical WDM transmitting device (9) and to an optical WDM transmission system implementing this method.