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1. 发明授权

EP2247980B1 OPTICAL SIGNAL PROCESSING 有权
标题翻译：光信号处理
公开(公告)号：EP2247980B1
公开(公告)日：2014-04-16
申请号：EP08709269.8
申请日：2008-02-29
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： BOGONI, Antonella , POTI, Luca , LAZZERI, Emma , MELONI, Gianluca , PONZINI, Filippo
IPC分类号： G02F1/35 , G02F3/00
CPC分类号： G02F1/3519 , G02F3/00

2. 发明公开

EP2247980A1 OPTICAL SIGNAL PROCESSING 有权
标题翻译：光信号处理
公开(公告)号：EP2247980A1
公开(公告)日：2010-11-10
申请号：EP08709269.8
申请日：2008-02-29
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： BOGONI, Antonella , POTI, Luca , LAZZERI, Emma , MELONI, Gianluca , PONZINI, Filippo
IPC分类号： G02F1/35 , G02F3/00
CPC分类号： G02F1/3519 , G02F3/00
摘要： Optical signal processor (1) comprising an optical waveguide loop (3), and first and second phase modulator loops (6, 7), each of the first and second phase modulator loops is in optical communication with the optical waveguide loop, and the first and second phase modulator loops each comprises a respective control signal input port (8, 9) to control phase modulation applied by the phase modulation loops, and the optical waveguide loop comprising two input ports (20a, 20b) to direct input signals (10, 11) in opposite senses in the optical waveguide loop and further comprising an output port (20c) to output resulting signals. The first and second phase modulator loops may comprise nonlinear optical loop mirrors. The processor may be an optical logic gate device.

3. 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.

4. 发明申请

WO2016041595A1 VIRTUALIZATION SYSTEM 审中-公开
标题翻译：虚拟化系统
公开(公告)号：WO2016041595A1
公开(公告)日：2016-03-24
申请号：PCT/EP2014/069827
申请日：2014-09-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BOTTARI, Giulio , PONZINI, Filippo , IOVANNA, Paola
IPC分类号： H04W16/14
CPC分类号： H04L5/0032 , H04W16/10 , H04W24/02 , H04W28/0252 , H04W72/048 , H04W88/085
摘要： A virtualization system (1) comprising a baseband processing arrangement (11,12). The virtualization system is configured to provide a plurality of virtual machines (41,42), each virtual machine having an allocation of baseband processing capacity provided by the baseband processing arrangement for serving remote radio units (6). The virtualization system is configured to dynamically re-allocate baseband processing capacity between virtual machines (41,42) based on at least one parameter related to radio domain requirements of the remote radio units (6).
摘要翻译：一种包括基带处理装置（11,12）的虚拟化系统（1）。虚拟化系统被配置为提供多个虚拟机（41,42），每个虚拟机具有由用于服务远程无线电单元（6）的基带处理装置提供的基带处理能力的分配。虚拟化系统被配置为基于与远程无线电单元（6）的无线电域要求相关的至少一个参数来动态地重新分配虚拟机（41,42）之间的基带处理能力。

5. 发明申请

WO2015195016A1 AN OPTICAL DEVICE, AN OPTICAL TRANSCEIVER AND A NETWORK NODE 审中-公开
标题翻译：光学设备，光学收发器和网络节点
公开(公告)号：WO2015195016A1
公开(公告)日：2015-12-23
申请号：PCT/SE2014/050763
申请日：2014-06-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： URBAN, Patryk , DORTSCHY, Boris , GIORGI, Luca , PONZINI, Filippo
IPC分类号： H04B10/2519 , H04B10/516 , G02B6/293
CPC分类号： H04B10/5165 , G02B6/02085 , G02B6/29319 , H04B10/25752 , H04J14/0227 , H04J14/0256
摘要： An optical device 111, 112 comprises: an optical input and output device 220 comprising a first input port 221, a second input port 222, a first output port 231 and a second output port 232; an optical filtering device 240 comprising an input port 241 coupled to the first output port 231 and an output port 242 coupled to the second input port 222; and an optical amplifying device 250 comprising an input port 251 coupled to the second output port 232. The optical input and output device 220 is adapted to couple the output port 242 comprised in the optical filtering device 240 to the input port 251 comprised in the optical amplifying device 250. The optical filtering device 240 comprises a multiple of cascaded phase shifted Bragg gratings 244, 245, 246, each being adapted to filter an associated respective optical carrier within to produce a respective output signal to the optical amplifying device 250.
摘要翻译：光学装置111,112包括：光输入和输出装置220，包括第一输入端口221，第二输入端口222，第一输出端口231和第二输出端口232; 光学滤波装置240包括耦合到第一输出端口231的输入端口241和耦合到第二输入端口222的输出端口242; 以及包括耦合到第二输出端口232的输入端口251的光学放大装置250.光学输入和输出装置220适于将包括在光学滤波装置240中的输出端口242耦合到包括在光学滤波器中的输入端口251 放大装置250.光学滤波装置240包括多个级联的相移的布拉格光栅244,245,246，每个适于在相关的相应的光载波内滤波以产生相应的输出信号到光放大装置250。

6. 发明申请

WO2015096864A1 AN OPTICAL LINE TERMINAL 审中-公开
标题翻译：光线终端
公开(公告)号：WO2015096864A1
公开(公告)日：2015-07-02
申请号：PCT/EP2013/077991
申请日：2013-12-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： GIORGI, Luca , PONZINI, Filippo
IPC分类号： H04J14/02
CPC分类号： H04J14/0283 , H04J14/0246 , H04J14/025 , H04J14/0289 , H04J14/029
摘要： The present invention provides an Optical Line Terminal (OLT) for an optical ring network. The OLT comprises a plurality of transmitters each configured to transmit a downstream signal at a respective wavelength. The OLT further comprises a multiplexer configured to wavelength division multiplex the downstream signals into a wavelength division multiplexed signal, an optical power splitter, and an optical switch having a first state and a second state. When the optical switch is in the first state, the wavelength division multiplexed signal is transmitted in a first direction around the optical ring. When the optical switch is in the second state, the wavelength division multiplexed signal is split by the optical power splitter into two wavelength division multiplexed signals and a first of the wavelength division multiplexed signals is transmitted in the first direction around the ring and the second of the wavelength division multiplexed signals is transmitted in a second, different direction around the ring. The OLT further comprises a controller configured to cause the optical switch to switch from the first state to the second state when a break in the ring is detected. There is also provided an optical ring network comprising the OLT, and a radio access network comprising the optical ring network.
摘要翻译：本发明提供了一种用于光环网络的光线路终端（OLT）。 OLT包括多个发射机，每个发射机被配置为在相应的波长处发送下行信号。 OLT还包括多路复用器，其被配置为将下游信号波分复用为波分复用信号，光功率分配器和具有第一状态和第二状态的光开关。当光开关处于第一状态时，波分复用信号沿光环周围的第一方向传输。当光开关处于第二状态时，波分复用信号由光功率分配器分离为两个波分多路复用信号，第一波分复用信号沿环绕第一方向传输，第二波分复用信号波分复用信号沿环绕第二不同方向发送。 OLT还包括控制器，其被配置为当检测到环中断时，使光开关从第一状态切换到第二状态。还提供了包括OLT的光环网络和包括光环网络的无线接入网络。

7. 发明申请

WO2013007318A1 APPARATUS AND METHOD FOR A PASSIVE OPTICAL NETWORK 审中-公开
标题翻译：被动光网络的设备和方法
公开(公告)号：WO2013007318A1
公开(公告)日：2013-01-17
申请号：PCT/EP2011/072951
申请日：2011-12-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RUFFINI, Stefano , PONZINI, Filippo
发明人： RUFFINI, Stefano , PONZINI, Filippo
IPC分类号： H04J14/02
CPC分类号： H04B10/2503 , H04B10/0775 , H04B10/272 , H04J14/02 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0273 , H04J14/0282 , H04J2014/0253 , H04L25/4904 , H04W92/12
摘要： A passive optical network comprises a first node configured to transmit a downlink data signal over a communication channel of an optical link, the communication channel having a first wavelength, and a second node configured to transmit an uplink data signal over the optical link using the communication channel having the first wavelength. The first node and/or the second node is adapted to perform at least one monitoring measurement on the communication channel having the first wavelength, and provide monitoring information, comprising the at least one monitoring measurement, in a monitoring channel. Common public radio interface (CPRI) traffic can therefore be transported over an optical transport network (OTN), by using a frequency reuse technique to provide a symmetrical bi-directional communication link between a first node and a second node, and using a frame structure of the optical transport network to provide a monitoring channel.
摘要翻译：无源光网络包括被配置为通过光链路的通信信道发送下行链路数据信号的第一节点，所述通信信道具有第一波长，以及第二节点，被配置为使用所述通信在所述光链路上发送上行链路数据信号通道具有第一波长。第一节点和/或第二节点适于在具有第一波长的通信信道上执行至少一个监视测量，并且在监视信道中提供包括所述至少一个监视测量的监视信息。因此，通过使用频率重用技术在第一节点和第二节点之间提供对称的双向通信链路，并且使用帧结构，通过公共无线电接口（CPRI）业务可以通过光传输网络（OTN）传输的光传输网络提供监控通道。

8. 发明申请

WO2013139367A1 WDM LINK FOR RADIO BASE STATION 审中-公开
标题翻译：用于无线电基站的WDM链路
公开(公告)号：WO2013139367A1
公开(公告)日：2013-09-26
申请号：PCT/EP2012/054810
申请日：2012-03-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , PONZINI, Filippo , CAVALIERE, Fabio
发明人： PONZINI, Filippo , CAVALIERE, Fabio
IPC分类号： H04B10/2575 , H04W88/08
CPC分类号： H04B10/25758 , H04B10/2575 , H04J14/02 , H04W88/085
摘要： A radio base station (10) has a baseband controller (20) coupled to a radio head (30) by an optical wavelength division multiplexed link to pass downlink signals on a first wavelength (100), and uplink signals on another wavelength (110). A compensating delay is applied to one of the signals to compensate for a difference in transmission times between the downlink and the uplink signals. The compensating delay can be controlled according to the difference in wavelengths. By compensating for such differences in transmission times, synchronisation problems can be avoided or ameliorated, or transmission distances can be increased. This can result in more flexibility in choice of wavelengths, fiber types and fiber lengths, and greater resilience. This can enable simpler installation or configuration, or reconfiguration without needing to take care to restrict the selection of wavelengths on the WDM link or restrict the length of the link for example.
摘要翻译：无线电基站（10）具有通过光波分复用链路耦合到无线电头（30）的基带控制器（20），以在第一波长（100）上传送下行链路信号，并且在另一波长（110）上传送上行链路信号，。对一个信号施加补偿延迟以补偿下行链路和上行链路信号之间的传输时间差。可以根据波长的差异来控制补偿延迟。通过补偿传输时间上的差异，可以避免或改善同步问题，或增加传输距离。这可以在选择波长，光纤类型和光纤长度以及更大的弹性方面产生更大的灵活性。这可以使得更简单的安装或配置或重新配置，而不需要注意限制WDM链路上的波长的选择或限制链路的长度。

9. 发明申请

WO2014187482A1 RESILIENCE IN PASSIVE OPTICAL NETWORKS 审中-公开
标题翻译：被动光网络的可靠性
公开(公告)号：WO2014187482A1
公开(公告)日：2014-11-27
申请号：PCT/EP2013/060530
申请日：2013-05-22
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： H04J14/0283 , H04J14/0246 , H04J14/025 , H04J14/0291 , H04J2014/0253
摘要： A passive optical network having resilience in the event of optical fibre damage or cuts, comprising an optical line terminal connected to a plurality of optical network terminals by an optical fibre arranged in a ring. The optical line terminal comprises an optical transmitter arranged to generate a downstream signal at a first wavelength and at a second, different wavelength, and a passive optical band-splitter. The passive optical band-splitter is arranged to direct the downstream optical signal in a first direction around the ring, if the downstream optical signal is at the first wavelength, but to direct the downstream optical signal in the opposite direction around the ring, if the downstream optical signal is at the second wavelength. At least one of the optical network terminals is coupled to the optical fibre by a passive add drop multiplexer configured to drop optical signals at both the first and second wavelengths. The passive add drop multiplexer is further configured to add a return upstream optical signal from the at least one of the optical network terminals to the optical fibre such that it travels in an opposite direction around the ring with respect to the downstream optical signal dropped by the passive add drop multiplexer.
摘要翻译：在光纤损坏或切割的情况下具有弹性的无源光网络，包括通过布置在环中的光纤连接到多个光网络终端的光线路终端。光线路终端包括被配置为产生第一波长和第二不同波长的下行信号的光发射机，以及无源光分波器。被动光学带分离器被布置成在下游光信号处于第一波长的情况下沿着围绕环的第一方向引导下游光信号，但是为了使下游光信号沿环绕相反方向引导，如果下行光信号处于第二波长。光网络终端中的至少一个通过被配置为在第一和第二波长处丢弃光信号的无源分插复用器耦合到光纤。无源分插复用器还被配置为将返回上行光信号从光网络终端中的至少一个添加到光纤，使得其相对于由下行光信号下降的环路围绕环行进相反的方向无源分插复用器。

10. 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。

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