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1. 发明申请

WO2013007277A1 OPTICAL ACCESS NETWORK 审中-公开
标题翻译：光接入网络
公开(公告)号：WO2013007277A1
公开(公告)日：2013-01-17
申请号：PCT/EP2011/061621
申请日：2011-07-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAVALIERE, Fabio , GIORGI, Luca , CIARAMELLA, Ernesto , PRESI, Marco
发明人： CAVALIERE, Fabio , GIORGI, Luca , CIARAMELLA, Ernesto , PRESI, Marco
IPC分类号： H04J14/02 , H04B10/26
CPC分类号： H04Q11/0067 , H04B10/272 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253 , H04L27/0008 , H04Q2011/0016 , H04Q2011/0086
摘要： An optical access network (5) comprises an optical line terminal (10) and an optical network unit (20) having a transmitter (24). An optical path (11, 12, 14, 15) connects an output of the transmitter (24) of the optical network unit (20) to the optical line terminal (10). The transmitter (24) of the optical network unit (20) is arranged to transmit an upstream signal (40) with an amplitude modulation format having at least one level transition per data bit period for at least one of the logical bits and a frequency modulation occurring with the level transition. An optical filter (16, 18, 31, 34) is positioned in the optical path. A central wavelength of a response (51) of the optical filter (16, 18, 31, 34) has an offset (53) with respect to a wavelength (41) of the upstream signal (40). The wavelength (41) of the upstream signal (40) is located on a slope (54) of the response (51) of the optical filter.
摘要翻译：光接入网络（5）包括光线路终端（10）和具有发射机（24）的光网络单元（20）。光路（11,12,14,15）将光网络单元（20）的发射机（24）的输出与光线路终端（10）连接起来。光网络单元（20）的发射机（24）被布置成以对于至少一个逻辑比特和频率调制的每个数据比特周期具有至少一个电平转换的幅度调制格式来发送上行信号（40）发生与水平转换。光学滤光器（16,18,31,34）位于光路中。滤光器（16,18,31,34）的响应（51）的中心波长相对于上游信号（40）的波长（41）具有偏移（53）。上游信号（40）的波长（41）位于滤光器的响应（51）的斜率（54）上。

2. 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）。

3. 发明申请

WO2012084274A1 A PASSIVE OPTICAL NETWORK ARRANGEMENT AND METHOD 审中-公开
标题翻译：被动光网络布置和方法
公开(公告)号：WO2012084274A1
公开(公告)日：2012-06-28
申请号：PCT/EP2011/056075
申请日：2011-04-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAVALIERE, Fabio , GIORGI, Luca
发明人： CAVALIERE, Fabio , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04J14/0227 , H04J14/0238 , H04J14/0246 , H04J14/0256 , H04J14/0267 , H04J14/0282
摘要： This disclosure relates to wavelength division multiplexed (WDM) passive optical networks (PON), and the transmission of point-to-point and broadcast or multicast channels from an optical line transmitter (OLT) to an optical network unit (ONU). There is provided a WDM PON (100) comprising: an OLT (105) coupled to a plurality of ONU (110a, 110b) using an optical fibre network (160); the OLT (105) having one or more WDM transceivers (115a, 115b) each arranged to receive multi-cast and point-to-point channels and wherein the or each WDM transceiver (115a, 115b) is arranged to transmit a said channel to a respective said ONU (110a, 110b) using a respective dedicated wavelength (λa, λb); an input channel switch (130a, 130b) associated with the or each WDM transceiver (115a, 115b) and arranged to selectively couple the input of the WDM transceiver to the multi-cast channels and the point-to-point channels (140,135); wherein the selected multi-cast or point-to-point channels are directly converted to the respective dedicated wavelength.
摘要翻译：本公开涉及波分复用（WDM）无源光网络（PON）以及从光线路发射机（OLT）到光网络单元（ONU）的点到点和广播或组播信道的传输。提供了一种WDM PON（100），包括：使用光纤网络（160）耦合到多个ONU（110a，110b）的OLT（105）; OLT（105）具有一个或多个WDM收发器（115a，115b），每个WDM收发器被布置成接收多播和点对点信道，并且其中所述或每个WDM收发器（115a，115b）被布置成将所述信道发送到相应的所述ONU（110a，110b）使用各自的专用波长（λa，φb）; 与所述或每个WDM收发器（115a，115b）相关联并被布置成选择性地将所述WDM收发器的输入耦合到所述多播信道和所述点对点信道（140,135）的输入信道交换机（130a，130b）。其中所选择的多播或点对点信道被直接转换成相应的专用波长。

4. 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）。

5. 发明申请

WO2012143046A1 PASSIVE OPTICAL NETWORK OPTICAL NETWORK TERMINAL APPARATUS AND CONFIGURATION METHOD 审中-公开
标题翻译：被动光网络光网络终端设备和配置方法
公开(公告)号：WO2012143046A1
公开(公告)日：2012-10-26
申请号：PCT/EP2011/056320
申请日：2011-04-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , GIORGI, Luca , CAVALIERE, Fabio
发明人： GIORGI, Luca , CAVALIERE, Fabio
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0282 , H04J14/0293
摘要： A method (10) of configuring an optical network terminal, ONT, of a wavelength division multiplexed passive optical network, WDM PON, the method comprising: a. sequentially setting a transmission wavelength of a tunable optical filter at the ONT to one or more wavelengths of a pre-selected plurality of transmission wavelengths until a wavelength is identified for which no downstream optical signal from an optical line terminal of the WDM PON is detected (12); b. determining whether a transmitter operable at said identified transmission wavelength is present at the OLT and is available to be assigned to communicate with the ONT (14); c. if a transmitter is determined to be present and available, maintaining the transmission wavelength of the tunable optical filter at transmission wavelength (16) and assigning the ONT to the OLT as a subscriber at said identified transmission wavelength (18); and d. if a transmitter is determined to be one of not present and not available, recommencing the method at step a. for one or more further wavelengths of said pre-selected plurality of wavelengths (20).
摘要翻译：一种配置波分复用无源光网络WDM PON的光网络终端ONT的方法（10），所述方法包括：a。顺序地将ONT处的可调谐滤光器的透射波长设置为预先选择的多个透射波长的一个或多个波长，直到识别出没有检测到来自WDM PON的光线路终端的下行光信号的波长（ 12）; 湾确定在所述OLT处是否存在以所述识别的传输波长可操作的发射机，并且可用于被分配为与所述ONT（14）通信; C。如果发射机被确定为存在并且可用，则保持可调光滤波器的传输波长处于传输波长（16）并且以所述识别的传输波长（18）将ONU作为用户分配给OLT; 和d。如果发射机被确定为不存在且不可用的发射机，则在步骤a重新开始该方法。对于所述预选择的多个波长（20）的一个或多个另外的波长。

6. 发明申请

WO2013037510A1 COMMUNICATIONS NETWORK APPARATUS AND LINE CODING METHOD 审中-公开
标题翻译：通信网络设备和线路编码方法
公开(公告)号：WO2013037510A1
公开(公告)日：2013-03-21
申请号：PCT/EP2012/056075
申请日：2012-04-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAVALIERE, Fabio , GIORGI, Luca , DAHLFORT, Stefan
发明人： CAVALIERE, Fabio , GIORGI, Luca , DAHLFORT, Stefan
IPC分类号： H04L25/49
CPC分类号： H04L25/4902
摘要： Methods and apparatus for line coding in a communications network are described. According to one embodiment of the invention, downstream communications traffic bits are received and mapped into downstream bit positions of a transmission structure. A preselected bit in each upstream bit positions of the transmission structure is provided to form a downstream transmission structure. A downstream optical signal carrying the downstream transmission structure is generated for transmission. Upstream communications traffic bits are also received and mapped into the upstream bit positions of the transmission structure to form an upstream transmission structure. An upstream optical signal carrying the upstream transmission structure is generated for transmission.
摘要翻译：描述了通信网络中线路编码的方法和装置。根据本发明的一个实施例，下行通信业务比特被接收并映射到传输结构的下游比特位置。提供传输结构的每个上游位位置中的预选位以形成下行传输结构。产生携带下游传输结构的下行光信号用于传输。上行通信业务比特也被接收并映射到传输结构的上游比特位置，形成上行传输结构。产生携带上游传输结构的上行光信号用于传输。

7. 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）。

8. 发明申请

WO2009059635A1 ALLOCATION OF TRANSMISSION POWER IN AN OPTICAL COMMUNICATION SYSTEM 审中-公开
标题翻译：光通信系统中传输功率的分配
公开(公告)号：WO2009059635A1
公开(公告)日：2009-05-14
申请号：PCT/EP2007/061930
申请日：2007-11-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CIARAMELLA, Ernesto , CAVALIERE, Fabio , GAIMARI, Giancarlo , MATARAZZO, Emma , BRUGIONI, Stefano , GIORGI, Luca
发明人： CIARAMELLA, Ernesto , CAVALIERE, Fabio , GAIMARI, Giancarlo , MATARAZZO, Emma , BRUGIONI, Stefano , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04B17/0042 , H04B17/309 , H04J14/0213 , H04J14/0221 , H04J14/0257 , H04J14/0267 , H04J14/0271 , H04J14/0275 , H04W52/322 , H04W52/327
摘要： Methods and apparatus for determining transmission power of a plurality of optical channels for transmission of the channels along respective paths obtained through an optical transmission system. Information is obtained indicative of the path of each channel through the optical transmission system, and each channel allocated to a group of channels in dependence upon the obtained information. A quality metric is determined for each group of channel, and a total transmission power for each group determined in dependence upon the determined quality metric.
摘要翻译：用于确定用于通过光传输系统获得的各个路径的信道传输的多个光信道的传输功率的方法和装置。获得指示通过光传输系统的每个信道的路径的信息，以及根据获得的信息分配给一组信道的每个信道。确定每个通道组的质量度量，以及根据确定的质量度量确定的每个组的总发射功率。

9. 发明申请

WO2011066858A1 IMPROVEMENTS IN OPTICAL NETWORKS 审中-公开
标题翻译：光网络的改进
公开(公告)号：WO2011066858A1
公开(公告)日：2011-06-09
申请号：PCT/EP2009/066310
申请日：2009-12-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , CAVALIERE, Fabio , GIORGI, Luca , GROSSO, Renato , CIARAMELLA, Ernesto
发明人： CAVALIERE, Fabio , GIORGI, Luca , GROSSO, Renato , CIARAMELLA, Ernesto
IPC分类号： H04J14/02 , H04B10/08
CPC分类号： H04J14/0227 , H04B10/071 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0257 , H04J14/0265 , H04J14/0282
摘要： An optical network (1) comprising an optical network element (10) comprising a first optical transmitter (14), a first controller (16), a first optical receiver and a second optical receiver and a second optical network element (12). There is provided a transmission path (30) between said first optical network element and said second optical network element. Said first optical transmitter is arranged to generate and transmit a first optical signal. Said first controller is arranged to control said first optical transmitter to generate and transmit said first optical signal at a wavelength selected from a predetermined plurality of wavelengths. Said first optical receiver is arranged to detect a backscatter portion of said first optical signal returned to said first optical network element along said transmission path by distributing scattering.
摘要翻译：一种包括光网络元件（10）的光网络（1），包括第一光发射器（14），第一控制器（16），第一光接收器和第二光接收器以及第二光网络元件（12）。在所述第一光网络元件和所述第二光网络元件之间提供传输路径（30）。所述第一光发射器被布置成产生和发射第一光信号。所述第一控制器被布置为控制所述第一光发射机以从预定的多个波长选择的波长产生和发射所述第一光信号。所述第一光接收器被布置为通过分布散射来检测沿着所述传输路径返回到所述第一光网络元件的所述第一光信号的后向散射部分。

10. 发明申请

WO2008078147A1 SIGNAL PROCESSOR FOR COMPENSATING FOR OPTICAL FIBER CHROMATIC DISPERSION 审中-公开
标题翻译：用于补偿光纤色散的信号处理器
公开(公告)号：WO2008078147A1
公开(公告)日：2008-07-03
申请号：PCT/IB2006/004207
申请日：2006-12-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , GIORGI, Luca , CIARAMELLA, Ernesto , CAVALIERE, Fabio , FORESTIERI, Enrico , FORYSIAK, Wladek
发明人： GIORGI, Luca , CIARAMELLA, Ernesto , CAVALIERE, Fabio , FORESTIERI, Enrico , FORYSIAK, Wladek
IPC分类号： H04B10/18
CPC分类号： H04B10/505 , H04B10/25137 , H04B10/5055
摘要： A signal processor for compenstaing for optical fibre chromatic dispersion comprising encoding means (5) for encoding a source signal (2) received from a data source (6), splitting means (8) to separate the encoded signal (7) from the encoding means (5) into an in-phase component (10) and an in-quadrature component (11), a first filter means (12) adapted to receive the in-phase component (10) and a second filter means (13) adapted to receive the in-quadrature component (11), the first filter means (12) and second filter means (13) being adapted to filter the in-phase and in-quadrature components respectively. The outputs (14, 15) from the filter means form the input to the optical modulator means (3).
摘要翻译：一种用于光纤色散补偿的信号处理器，包括用于对从数据源（6）接收的源信号（2）进行编码的编码装置（5），将编码信号（7）与编码装置分离的分离装置（5）转换成同相分量（10）和正交分量（11），适于接收所述同相分量（10）的第一滤波器装置（12）和适于接收正交分量（11），第一滤波器装置（12）和第二滤波器装置（13）适于分别滤波同相和正交分量。来自滤波器装置的输出（14,15）形成到光调制器装置（3）的输入。

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