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1. 发明申请

WO2006008310A1 OPTIMISATION OF THE NUMBER AND LOCATION OF REGENERATIVE OR NON-REGENERATIVE REPEATERS IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION LINKS 审中-公开
标题翻译：优化多波长光纤通信链路中的再生或非再生中继器的数量和位置
公开(公告)号：WO2006008310A1
公开(公告)日：2006-01-26
申请号：PCT/EP2005/053530
申请日：2005-07-20
申请人： MARCONI COMMUNICATIONS SPA , BOTTARI, Giulio , CAVALIERE, Fabio
发明人： BOTTARI, Giulio , CAVALIERE, Fabio
IPC分类号： H04B10/17
CPC分类号： H04B10/2935
摘要： A method for optimisation of the number and location of regenerative or non-regenerative repeaters in a WDM link made up of N spans connected in a succession of N-1 intermediate sites to form link sections separated by sites containing regenerative repeaters, comprises a step for defining the number of regenerative repeaters needed and giving them a first location. Said step comprises the phases of defining targets OSNRs (VOSNRT) as a function of the number of spans and the type of fibre used in the spans, and defining a possible section between an initial site and a final site, appraising a metric function VM for said possible section obtained as a function of the difference between the OSNR (VOSNR) at the final end of the first span of said possible section and the corresponding target OSNR (VOSNRT) given by the number of spans in said possible section. If the appraised metric function VM satisfies an established quality parameter, add to the possible section the following span in the link and again appraise the metric function for said new possible section obtained as a function of the difference between the OSNR (VOSNR) at the final end of the first span of the possible section and the corresponding target OSNR (VOSNRT) with the new number of spans in the possible section. Said steps are repeated iteratively while adding spans to the possible section until the metric function VM no longer satisfies the quality parameter and one returns at the end site preceding the last span added and positions a regenerator in said site. The procedure is repeated until the end of the new section is identified or to exhaustion of the spans of the link.
摘要翻译：一种用于优化在连续N-1个中间站点中连接的N个跨度组成的WDM链路中的再生或非再生中继器的数量和位置的方法，以形成由包含再生中继器的站点分离的链路段，包括步骤定义所需的再生中继器的数量并给予它们第一个位置。所述步骤包括定义目标OSNR（VOSNRT）的阶段，其作为跨度的数量和在跨度中使用的光纤的类型的函数，并且定义初始站点和最终站点之间的可能部分，评估度量函数VM 所述可能部分是根据所述可能部分的第一跨度的最终端的OSNR（VOSNR）与由所述可能部分中的跨度数给出的相应目标OSNR（VOSNRT）之间的差异而获得的。如果评估度量函数VM满足已建立的质量参数，则在链路中添加以下跨度的可能部分，并再次评估所获得的所述新可能部分的度量函数作为最终的OSNR（VOSNR）之间的差异的函数可能部分的第一个跨度的结束和相应的目标OSNR（VOSNRT）与可能部分中的新的跨度数。所述步骤重复地重复，同时将跨度添加到可能的部分，直到度量函数VM不再满足质量参数，并且一个在最后一个跨度添加之前的终点站点返回，并将再生器定位在所述站点中。重复该过程，直到新部分的结尾被识别或链接的跨度耗尽。

2. 发明申请

WO2006008321A1 CHANNEL POWER PRE-EMPHASIS IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION SYSTEMS 审中-公开
标题翻译：波长级多通道光通信系统中的信道功率预测
公开(公告)号：WO2006008321A1
公开(公告)日：2006-01-26
申请号：PCT/EP2005/053592
申请日：2005-07-22
申请人： MARCONI COMMUNICATIONS SPA , CIARAMELLA, Ernesto , CAVALIERE, Fabio , GIORGI, Luca
发明人： CIARAMELLA, Ernesto , CAVALIERE, Fabio , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04J14/0221
摘要： An iterative method for power pre-emphasis of N optical channels in a Wavelengt h Division Multiplex (WDM) signal in an optical communication systems in accordance with which representative Xi characterist ics are defined for the channels with among the characteristics there being included at least one characteristic that is a function of the Bit Error Rate (BER). The method including the iterative phases of running through the WDM signal channels and appraising for each channel said characteristics for the channel and for the channels adjacent thereto; comparing said channel characteristics with the homologous characteristics of the adjacent channels and, based on the results of the comparisons, selecting a predetermined action to be performed on the power transmitted on the ith channel; for all the channels, performing on the power of each the corresponding selected action; calculating a metric quality function of all the channels with the new powers changed with the selected actions and repeating the previous iterative phases from the beginning until the quality improvement is greater than a predetermined figure and/or a predetermined maximum number of iterations is reached.
摘要翻译：在光通信系统中的Wavelengt h Division Multiplex（WDM）信号中的N个光信道的功率预加重的迭代方法，根据哪个代表性的Xi特征被定义用于具有特征的信道，其中包括至少一个特征是位误码率（BER）的函数。该方法包括遍历WDM信号信道的迭代阶段，并针对每个信道评估用于信道和与其相邻的信道的所述特征; 将所述信道特性与相邻信道的同源特性进行比较，并且基于比较结果，选择要在第i个信道上发送的功率执行的预定动作; 对于所有的通道，执行每个相应的所选动作的动力; 用所选择的动作来计算新功率的所有信道的度量质量函数，并从开始重复前一个迭代阶段，直到质量改进大于预定数字和/或达到预定的最大迭代次数。

3. 发明申请

WO2006000510A1 OPTICAL PATH FEASIBILITY IN AN OPTICAL COMMUNICATION NETWORK 审中-公开
标题翻译：光通信网络中的光路可行性
公开(公告)号：WO2006000510A1
公开(公告)日：2006-01-05
申请号：PCT/EP2005/052473
申请日：2005-05-31
申请人： MARCONI COMMUNICATIONS SPA , BRUNO, Gianmarco , CAVALIERE, Fabio
发明人： BRUNO, Gianmarco , CAVALIERE, Fabio
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/0241 , H04J14/0283
摘要： A method of assessing the feasibility of a composite optical path in an optical communications network in which the composite path is composed of two optical paths k1 and k2 is described. The method comprising the steps of: defining, for each individual optical path k and with type i interface, at least one parameter indicating its feasibility, calculating a quality Q factor Q'_i,k1+k2 of the signal for the composite path, estimated considering the deterioration which affects transmission over the paths k1 and k2 and comparing this quality Q'_i,k1+k2 with a value Qbare_i which is defined as the lowest value which can be taken on by a mapping function Q_i(.) for interface i and which gives the Q factor as a function of the OSNR received evaluated under the conditions that are considered to be the worst case that can be accepted whilst ensuring the desired signal quality and wherein the composite connection is considered feasible if Q'_i,k1+k2 >= Qbare_i.
摘要翻译：描述了一种评估光通信网络中的复合光路的可行性的方法，其中复合路径由两个光路k1和k2组成。该方法包括以下步骤：为每个独立光路k和类型i接口定义表示其可行性的至少一个参数，计算复合路径的信号的质量Q因子Q'_i，k1 + k2，估计考虑到影响路径k1和k2上的传输的劣化，并将该质量Q'_i，k1 + k2与被定义为接口i的映射函数Q_i（。）可以被接受的最低值的值Qbare_i进行比较并且其给出Q因子作为在被认为是可以接受的最坏情况的条件下评估的OSNR的函数，同时确保期望的信号质量，并且其中如果Q'i，k1 + k2> = Qbare_i。

4. 发明申请

WO2013068039A1 OPTICAL SUPERVISORY CHANNEL 审中-公开
标题翻译：光学监控通道
公开(公告)号：WO2013068039A1
公开(公告)日：2013-05-16
申请号：PCT/EP2011/069742
申请日：2011-11-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CAVALIERE, Fabio , BOTTARI, Giulio
发明人： CAVALIERE, Fabio , BOTTARI, Giulio
IPC分类号： H04J14/02
CPC分类号： H04B10/0775 , H04J14/0234 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0282
摘要： A supervisory channel is provided on an optical path (31) between nodes of an optical communication network. The nodes are arranged to use a set of wavelengths allocated for carrying traffic channels. An optical signal (16) which carries a supervisory channel is generated at a supervisory channel transmitter (15) and added (12) to the optical path (31) downstream of an optical amplifier (11). The optical signal (16) has a wavelength which is one of the set of wavelengths allocated for carrying traffic. The method is performed at a time when the wavelength is not being used to carry traffic. An impairment parameter of the received optical signal is measured at a supervisory channel receiver (15). The receiver is a coherent receiver and the impairment parameter is chromatic dispersion or polarisation mode dispersion.
摘要翻译：在光通信网络的节点之间的光路（31）上提供监控信道。节点被布置成使用分配用于承载业务信道的一组波长。在监控信道发射机（15）处生成载有监控信道的光信号（16），并将光信号（12）添加到光放大器（11）下游的光路（31）。光信号（16）具有作为分配用于携带业务的一组波长之一的波长。该方法是在波长不用于携带业务的时候执行的。在监控信道接收机（15）处测量所接收的光信号的损伤参数。接收机是相干接收机，损伤参数是色散或偏振模色散。

5. 发明申请

WO2012048975A1 DETERMINING ASYMMETRIES IN A COMMUNICATION NETWORK 审中-公开
标题翻译：确定通信网络中的不对称性
公开(公告)号：WO2012048975A1
公开(公告)日：2012-04-19
申请号：PCT/EP2011/065844
申请日：2011-09-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CAVALIERE, Fabio , RUFFINI, Stefano , BOTTARI, Giulio , GIORGI, Luca
发明人： CAVALIERE, Fabio , RUFFINI, Stefano , BOTTARI, Giulio , GIORGI, Luca
IPC分类号： H04B10/08 , H04J3/06 , H04L12/26
CPC分类号： H04L43/0864 , H04B10/07 , H04B10/0775 , H04B10/0795 , H04B2210/072 , H04B2210/078 , H04J3/0667 , H04J14/0201 , H04J14/021 , H04J14/0226 , H04J14/0267 , H04J14/0273 , H04J14/0275 , H04Q11/0066 , H04Q2011/0083
摘要： A method for measuring asymmetry in propagation delay of first and second links which connect a first node to a second node of a communication network. The method comprises measuring (101) a round trip delay of the first link. The round trip delay can be measured by transmitting (102) a test signal from the first node to the second node over the first link and receiving a reply to the test signal from the second node over the first link. The method further comprises measuring (105) a round trip delay of the second link. The round trip delay can be measured by transmitting (106) a test signal to the second node over the second link and receiving a reply to the test signal from the second node over the second link. A difference in the propagation delay of the first link with respect to the second link is determined (109) using the measured round trip delays of the first link and the second link.
摘要翻译：一种用于测量将第一节点连接到通信网络的第二节点的第一和第二链路的传播延迟不对称的方法。该方法包括测量（101）第一链路的往返延迟。可以通过在第一链路上将测试信号从第一节点发送（102）到第二节点（102）并通过第一链路接收来自第二节点的测试信号的答复来测量往返延迟。该方法还包括测量（105）第二链路的往返延迟。可以通过在第二链路上向第二节点发送（106）测试信号（106）并通过第二链路从第二节点接收对测试信号的回复来测量往返延迟。使用所测量的第一链路和第二链路的往返延迟来确定第一链路相对于第二链路的传播延迟的差异（109）。

6. 发明申请

WO2011134507A1 OPTICAL ACCESS NETWORK 审中-公开
标题翻译：光接入网络
公开(公告)号：WO2011134507A1
公开(公告)日：2011-11-03
申请号：PCT/EP2010/055723
申请日：2010-04-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CAVALIERE, Fabio , GIORGI, Luca , D'ERRICO, Antonio , GROSSO, Renato
发明人： CAVALIERE, Fabio , GIORGI, Luca , D'ERRICO, Antonio , GROSSO, Renato
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0202 , H04J14/0257 , H04J14/0267 , H04J14/0269
摘要： An optical access network (5) comprises L wavelength division multiplexed access sub-networks (10,11,12), where L>2. Each of the wavelength division multiplexed access sub-networks (10,11,12) is arranged to use a set of wavelength channels (λ 1 -λ N ). M optical line termination apparatus (41,42,43), where M>1, each receive traffic from a respective operator network (51,52,53) and output traffic on the wavelength channels. A wavelength routing apparatus (110) comprises M sets of first ports (35) and L second ports (24). Each set of first ports connects to a respective one of the optical line termination apparatus (41,42,43) and each second port connects to an optical link (16) of a respective one of the wavelength division multiplexed access sub- networks. The wavelength routing apparatus (110) is arranged to route the wavelength channels (λ 1 -λ N ) between the sets of first ports (35) and the second ports (24) and to route different wavelength channels of the same wavelength to different ones of the second ports (24).
摘要翻译：光接入网络（5）包括L波分复用接入子网（10,11,12），其中L> 2。波分复用接入子网络（10,11,12）中的每一个被配置为使用一组波长信道（α1-ΔN）。 M光线路终端设备（41,42,43），其中M> 1，各自从相应的运营商网络（51,52,53）接收业务并在波长信道上输出业务。波长路由装置（110）包括M组第一端口（35）和L个第二端口（24）。每组第一端口连接到光线路终端设备（41,42,43）中的相应一个，并且每个第二端口连接到相应的一个波分复用接入子网络的光链路（16）。波长路由装置（110）被布置成在第一端口（35）和第二端口（24）组之间路由波长信道（λ1-ΔN），并且将相同波长的不同波长信道路由到不同的的第二端口（24）。

7. 发明申请

WO2011032597A1 PASSIVE OPTICAL NETWORK 审中-公开
标题翻译：被动光网络
公开(公告)号：WO2011032597A1
公开(公告)日：2011-03-24
申请号：PCT/EP2009/062141
申请日：2009-09-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0067 , H04B10/2587 , H04B10/516 , H04B2210/517 , H04J14/0282 , H04J2014/0253 , H04Q2011/0086 , H04Q2011/009
摘要： A distribution node (10) of a passive optical network (PON) comprises a first port (11) for receiving a first optical continuous envelope modulated downstream data signal at a first wavelength (λ c ) from a first optical line termination unit (OLTl) and a second port (12) for receiving a second optical continuous envelope modulated downstream data signal at a second wavelength (λ L ) from a second optical line termination unit (OLT2). A first converter (FBG-I) performs continuous envelope modulation-to-intensity modulation conversion of the first optical downstream data signal and forwards the converted first optical downstream data signal (λ c ) to the first group of optical network units (ONU 1... N ). A second converter (FBG-2) performs continuous envelope modulation-to-intensity modulation conversion of the second optical downstream data signal and forwards the converted second optical downstream data signal (λ L ) to the second group of optical network units (ONU N+I...2N ). The distribution node (10) forwards a seed signal at the first wavelength (λc) to the second group of optical network units (ONU N+I...2N ) and forwards a seed signal at the second wavelength (λ L ) to the first group of optical network units (ONU 1... N ).
摘要翻译：无源光网络（PON）的分发节点（10）包括用于从第一光线路终端单元（OLT1）接收第一波长（λc）的第一光学连续包络调制下行数据信号的第一端口（11）以及用于从第二光线路终端单元（OLT2）接收第二波长（λL）的第二光学连续包络调制下行数据信号的第二端口（12）。第一转换器（FBG-I）对第一光下行数据信号执行连续的包络调制到强度调制转换，并将转换后的第一光下行数据信号（ωc）转发到第一组光网络单元（ONU1 .. 。N）。第二转换器（FBG-2）对第二光学下行数据信号执行连续包络调制强度调制转换，并将转换的第二光下行数据信号（ΔL）转发到第二组光网络单元（ONUN + I ... 2N）。分配节点（10）将第一波长（λc）的种子信号转发到第二组光网络单元（ONUN + I ... 2N），并将第二波长（λL）的种子信号转发到第一组光网络单元（ONU1 ... N）。

8. 发明申请

WO2010000296A1 OPTICAL APPARATUS 审中-公开
标题翻译：光学装置
公开(公告)号：WO2010000296A1
公开(公告)日：2010-01-07
申请号：PCT/EP2008/058365
申请日：2008-06-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CAVALIERE, Fabio
发明人： CAVALIERE, Fabio
IPC分类号： H04B10/26
CPC分类号： H04B10/2587
摘要： An optical apparatus for use in an optical communications network, and a method of operating a network are described. The apparatus includes an input suitable for receiving a first continuous wave optical signal from a remote location on a network, and a modifying unit arranged to modify the first continuous wave optical signal to produce a second continuous wave optical signal having a wavelength which is different from the wavelength of the first continuous wave optical signal. A modulating unit is arranged to modulate the second continuous wave optical signal with data to produce a modulated second continuous wave optical signal.
摘要翻译：描述了一种用于光通信网络的光学装置，以及一种操作网络的方法。该装置包括适于从网络上的远程位置接收第一连续波光信号的输入，以及修改单元，其被配置为修改第一连续波光信号以产生具有不同于第一连续波光信号的波长的第二连续波光信号第一连续波光信号的波长。调制单元被布置成用数据调制第二连续波光信号以产生经调制的第二连续波光信号。

9. 发明申请

WO2013056734A1 OPTICAL MODULATOR AND METHOD OF ENCODING COMMUNICATIONS TRAFFIC IN A MULTILEVEL MODULATION FORMAT 审中-公开
标题翻译：光学调制器和多通道调制格式的通信编码方法
公开(公告)号：WO2013056734A1
公开(公告)日：2013-04-25
申请号：PCT/EP2011/068268
申请日：2011-10-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAVALIERE, Fabio
发明人： CAVALIERE, Fabio
IPC分类号： H04B10/155
CPC分类号： H04B10/5561 , H04B10/5053
摘要： An optical modulator (10) comprising: an optical splitter (12) arranged to receive an optical carrier signal (14) and split it into sub-signals (16); modulation assemblies (18), each comprising a binary optical modulator (22) arranged to apply a binary phase shift keyed, BPSK, modulation to a respective optical sub-signal to form a BPSK modulated optical sub-signal. A plurality of the modulation assemblies (20) comprise a phase-shifter (24), each arranged to apply a respective phase shift to the respective BPSK modulated optical sub-signal in dependence on a pre-selected multilevel modulation format; encoding apparatus (26) arranged to receive communications traffic bits (28), to map each bit into a respective symbol, and to generate and transmit a respective drive signal to the optical modulator of a modulation assembly, each drive signal arranged to cause the optical modulator to apply said BPSK modulation, to encode the symbol onto the respective optical carrier sub-signal; an output (30); and a combiner (32) arranged to receive each BPSK modulated optical sub-signal and to deliver each sub-signal to the output, to form an output optical signal (34) having said multilevel modulation format.
摘要翻译：一种光调制器（10），包括：光分路器（12），布置成接收光载波信号（14）并将其分割成子信号（16）; 调制组件（18），每个调制组件（18）包括二进制光调制器（22），其布置成将二进制相移键控的BPSK调制应用于相应的光子信号以形成BPSK调制的光子信号。多个调制组件（20）包括移相器（24），每个移相器（24）被设置为根据预先选择的多电平调制格式将相应的相移施加到相应的BPSK调制的光子信号; 编码装置（26），被布置为接收通信业务位（28），将每个位映射到相应的符号，并且生成并将相应的驱动信号发送到调制组件的光调制器，每个驱动信号被布置成使光调制器来应用所述BPSK调制，将符号编码到相应的光载波子信号上; 输出（30）; 以及组合器（32），被布置成接收每个BPSK调制的光子信号并将每个子信号传送到输出端，以形成具有所述多电平调制格式的输出光信号（34）。

10. 发明申请

WO2011003481A1 IMPROVEMENTS IN REFLECTIVE OPTICAL NETWORKS 审中-公开
标题翻译：反射光网络的改进
公开(公告)号：WO2011003481A1
公开(公告)日：2011-01-13
申请号：PCT/EP2009/059480
申请日：2009-07-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PRESI, Marco , CIARAMELLA, Ernesto , CHIUCHIARELLI, Andrea , PROIETTII, Roberto , CONTESTABILE, Giampiero , CHOUDHURY, Pallab , GIORGI, Luca , CAVALIERE, Fabio
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CHIUCHIARELLI, Andrea , PROIETTII, Roberto , CONTESTABILE, Giampiero , CHOUDHURY, Pallab , GIORGI, Luca , CAVALIERE, Fabio
IPC分类号： H04B10/26
CPC分类号： H04B10/2587 , H04J14/0282 , H04J2014/0253
摘要： A reflective optical network (10) comprises an optical network unit (14) and an optical receiver (22). The optical network unit (14) comprises a reflective optical modulator (16) arranged to receive a seed optical signal, and a transmitter controller (18) arranged to receive a data signal (20) and to control the modulator (16) to apply the data signal (20) to the seed optical signal, to form an optical data signal. The transmitter controller (18) is arranged to process the data signal (20) to substantially prevent the optical data signal comprising spectral components at frequencies lower than a cut-off frequency, being the frequency at which a power spectral density of said optical data signal is lower than a peak power spectral density of said optical signal by a cut-off power value. The optical receiver (22) comprises an electrical domain high pass filter (26) having a cut-off frequency higher than a linewidth of the seed optical signal.
摘要翻译：反射光网络（10）包括光网络单元（14）和光接收器（22）。光网络单元（14）包括布置成接收种子光信号的反射光调制器（16）和布置成接收数据信号（20）并且控制调制器（16）应用数据信号（20）到种子光信号，以形成光数据信号。发射机控制器（18）被布置成处理数据信号（20）以基本上防止包括频率低于截止频率的频谱分量的光数据信号，其是所述光数据信号的功率谱密度通过截止功率值低于所述光信号的峰值功率谱密度。光接收器（22）包括具有高于种子光信号的线宽的截止频率的电域高通滤波器（26）。

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