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1. 发明申请

WO2013170907A1 PASSIVE OPTICAL NETWORKS AND METHOD OF CONFIGURING TRANSMISSION WAVELENGTHS THEREIN 审中-公开
标题翻译：被动光网络及其传输波长配置方法
公开(公告)号：WO2013170907A1
公开(公告)日：2013-11-21
申请号：PCT/EP2012/060915
申请日：2012-06-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , STRACCA, Stefano , GIORGI, Luca , PONZINI, Filippo
发明人： STRACCA, Stefano , GIORGI, Luca , PONZINI, Filippo
IPC分类号： H04J14/02
CPC分类号： H04J14/023 , H04B10/27 , H04B10/572 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A method (10) of configuring transmission wavelengths in a passive optical network comprising a wavelength selective routing element between first and second locations. The method comprises: at a first location (A): a. iteratively generating and transmitting a first optical signal at different ones of a plurality of wavelengths until a second optical signal is received at the first location (12); and then b. ceasing transmission of the first optical signal (14) and then recommencing transmission of the first optical signal at the wavelength being transmitted when the second optical signal was received (16); and at a second location (B), remote from the first location: c. waiting until the first optical signal is received at the second location (18); d. iteratively generating and transmitting the second optical signal at different ones of a plurality of wavelengths until the first optical signal is no longer received (20) at the second location; and e. maintaining generation and transmission of the second optical signal at the wavelength being transmitted when the first optical signal was no longer received (22).
摘要翻译：一种在无源光网络中配置传输波长的方法（10），包括在第一和第二位置之间的波长选择性路由元件。该方法包括：在第一位置（A）：a。以多个波长的不同方式迭代地生成和发射第一光信号，直到在第一位置（12）处接收到第二光信号; 然后b。停止发送第一光信号（14），然后在接收到第二光信号时重新发送正在发送的波长的第一光信号（16）; 和远离第一位置的第二位置（B）：c。等待直到在第二位置（18）处接收到第一光信号; 天。以不同的多个波长迭代地生成和发射第二光信号，直到在第二位置不再接收（20）第一光信号; 和e。当不再接收到第一光信号时，维持正在传输的波长处的第二光信号的生成和传输（22）。

2. 发明申请

WO2014015909A1 Transponder For WDM Ring Network 审中-公开
标题翻译： WDM环网应答器
公开(公告)号：WO2014015909A1
公开(公告)日：2014-01-30
申请号：PCT/EP2012/064725
申请日：2012-07-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , PONZINI, Filippo , GIORGI, Luca
发明人： PONZINI, Filippo , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04J14/0202 , H04B10/275 , H04B10/572 , H04J14/0295
摘要： For a WDM ring network, a node has an optical add drop part (60, 62, 64) and a transponder having a wavelength tunable transmitter (20) for sending a selectable one of the wavelengths in a selectable direction around the ring to a destination node. There is a controller (30) configured to select the wavelength to be sent by the wavelength tunable transmitter and to change the direction of sending around the ring, in response to a detection of a fault in sending in one of the directions. By making the transponder colourless and yet able to select direction, a simple protection switching capability can be added to an existing low cost WDM ring network having passive optical filters. This can be achieved without the need for a reconfigurable optical add drop multiplexer and associated control plane.
摘要翻译：对于WDM环形网络，节点具有光学加法器部分（60,62,64）和具有波长可调发射器（20）的转发器，用于将围绕环的可选择方向的可选择的一个波长发送到目的地节点。存在控制器（30），其被配置为响应于检测到沿其中一个方向发送的故障，选择由波长可调谐发射机发送的波长并改变环路发送的方向。通过使应答器无色并且能够选择方向，可以将简单的保护切换能力添加到具有无源光学滤波器的现有低成本WDM环形网络中。这可以在不需要可重新配置的光分插复用器和相关控制平面的情况下实现。

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

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。

6. 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。

7. 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。

8. 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）。

9. 发明公开

EP2878090A1 Transponder For WDM Ring Network 审中-公开
标题翻译：应答器WDM环网
公开(公告)号：EP2878090A1
公开(公告)日：2015-06-03
申请号：EP12743131.0
申请日：2012-07-26
申请人： Telefonaktiebolaget L M Ericsson (Publ)
发明人： PONZINI, Filippo , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04J14/0202 , H04B10/275 , H04B10/572 , H04J14/0295
摘要： For a WDM ring network, a node has an optical add drop part (60, 62, 64) and a transponder having a wavelength tunable transmitter (20) for sending a selectable one of the wavelengths in a selectable direction around the ring to a destination node. There is a controller (30) configured to select the wavelength to be sent by the wavelength tunable transmitter and to change the direction of sending around the ring, in response to a detection of a fault in sending in one of the directions. By making the transponder colourless and yet able to select direction, a simple protection switching capability can be added to an existing low cost WDM ring network having passive optical filters. This can be achieved without the need for a reconfigurable optical add drop multiplexer and associated control plane.

10. 发明公开

EP2628260A1 DETERMINING ASYMMETRIES IN A COMMUNICATION NETWORK 有权
标题翻译：不对称在通信网络确定
公开(公告)号：EP2628260A1
公开(公告)日：2013-08-21
申请号：EP11757842.7
申请日：2011-09-13
申请人： Telefonaktiebolaget L M Ericsson (publ)
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.

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