公开(公告)号：EP3413499A1

公开(公告)日：2018-12-12

申请号：EP18164191.1

申请日：2010-09-28

申请人： Huawei Technologies Co., Ltd.

发明人： LIN, Yi ,  WU, Qiuyou ,  ZHANG, Fatai ,  HAN, Jianrui ,  ZI, Xiaobing

IPC分类号： H04L5/22 ,  H04J3/16

CPC分类号： H04L47/724 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0067 ,  H04Q11/0066 ,  H04Q2011/0086

摘要： Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message which is sent by a neighboring node and carries a service type; determining, according to the service path request message, an OTU link used to bear the ODU service, determining and reserving, according to the service type in the service path request message, a free tributary slot resource used to bear the ODU service in the OTU link, and assigning a tributary port number to the free tributary slot resource; and sending a service path acknowledgment message to the neighboring node. In the method, apparatus, and system for assigning a tributary port number in the embodiments of the present invention, the tributary port number is obtained automatically instead of being assigned manually through a network management system, and therefore, the efficiency of assigning the tributary port number is improved. Because the manual operation is avoided, the error rate of assigning the tributary port number is reduced.

公开(公告)号：EP3382919A1

公开(公告)日：2018-10-03

申请号：EP17826125.1

申请日：2017-01-24

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： LIN, Huafeng ,  LIU, Dekun

IPC分类号： H04J14/02

CPC分类号： H04Q11/0067 ,  H04J14/0236 ,  H04J14/0278 ,  H04J14/0282 ,  H04Q2011/0086 ,  H04Q2011/0088

摘要： Embodiments of the present invention provide a communication method, apparatus, and system for a PON. The PON includes an OLT and a first ONU. The method includes: communicating, by the OLT, with the first ONU by using one downlink wavelength λdx, where the one downlink wavelength λdx is any one of N downlink wavelengths λd1 to λdN; and communicating, by the OLT, with the first ONU by using one uplink wavelength λu0, where the one uplink wavelength λu0 is different from any one of M uplink wavelengths λu1 to λuM. The N downlink wavelengths λd1 to λdN and the M uplink wavelengths λu1 to λuM are wavelength values configured for a second ONU, N and M are both integers greater than or equal to 2, and x is any value from 1 to M. Therefore, complexity and costs of the PON system are reduced.

公开(公告)号：EP3349479A1

公开(公告)日：2018-07-18

申请号：EP15904347.0

申请日：2015-09-22

申请人： Huawei Technologies Co., Ltd.

发明人： GAO, Bo ,  TAO, Minghui

IPC分类号： H04Q11/00 ,  H04L29/06

CPC分类号： H04J14/0239 ,  H04L12/2861 ,  H04L12/2898 ,  H04L29/06 ,  H04Q11/00 ,  H04Q11/0067 ,  H04Q2011/0086

摘要： Embodiments of the present invention provide an optical network unit ONU registration method, an apparatus, and a system. The ONU registration method includes: scanning, by an ONU port, a downstream wavelength channel, where the ONU port is one of a plurality of ports on an ONU; receiving, by the ONU port, a discovery grant message from an optical line terminal OLT, where the discovery grant message includes a channel identifier of a downstream wavelength channel on which the discovery grant message is being transmitted; sending, by the ONU port, a register request message to the OLT, where the register request message includes a port number of the ONU port; and receiving, by the ONU port, a register message from the OLT, where the register message includes the port number of the ONU port and an ONU logical identifier allocated by the OLT to the ONU port. In the embodiments of the present invention, the ONU port receives a discovery grant from the OLT, sends a register request to the OLT, and receives, from the OLT, the ONU logical identifier allocated to the ONU port. This provides an efficient ONU registration mechanism, to perform ONU management and maintenance at a granularity of an ONU port, so that the ONU can support more bandwidth channels, and a bandwidth is increased.

公开(公告)号：EP2858319B1

公开(公告)日：2018-06-20

申请号：EP13796891.3

申请日：2013-05-06

申请人： ZTE Corporation

发明人： FU, Xihua ,  ZHANG, Xinling

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0257 ,  H04L45/62 ,  H04L47/125 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0086

摘要： A channel establishment method and device are provided. The method includes: establishing a media channel between a first node and a second node; establishing a signal channel between a third node and a fourth node after the media channel is established, the signal channel passes a frequency slot matrix of one or more intermediate nodes between the third node and the fourth node and a traffic engineering link between any two nodes; and allocating frequency spectrum to the signal channel from available frequency spectrum of the traffic engineering link, wherein the frequency spectrum allocated includes multiple split 50GHz frequency spectrums which bear one optical channel and each of which only includes single optical carrier. The solution addresses the problem of how to effectively plan and manage frequency spectrum for an introduced flexible grid technology, improves waveband spectrum efficiency and achieves the compatibility to 50GHz transmission technology of existing DWDM systems.

公开(公告)号：EP3300384A1

公开(公告)日：2018-03-28

申请号：EP16795714.1

申请日：2016-03-09

申请人： ZTE Corporation

发明人： ZHANG, Zhikun ,  FU, Huaming ,  JIANG, Jian

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0067 ,  H04L41/0846 ,  H04Q2011/0086

摘要： Provided are a method and apparatus for generating an ONU template. The method includes acquiring modification information about a service parameter of a first ONU template; creating a second ONU template that has a same service parameter as the first ONU template; and modifying a corresponding service parameter in the second ONU template according to the modification information to obtain a third ONU template. Cumbersomeness of a process of modifying the ONU service parameter is solved and complexity of modifying the ONU service parameter is reduced.

摘要翻译： 提供了一种生成ONU模板的方法和装置。 该方法包括：获取关于第一ONU模板的业务参数的修改信息; 创建与所述第一ONU模板具有相同服务参数的第二ONU模板; 根据所述修改信息修改所述第二ONU模板中对应的业务参数，得到第三ONU模板。 解决了修改ONU业务参数的过程繁琐，降低了修改ONU业务参数的复杂度。

公开(公告)号：EP2472767B1

公开(公告)日：2018-03-28

申请号：EP10819902.7

申请日：2010-09-28

申请人： Huawei Technologies Co., Ltd.

发明人： LIN, Yi ,  WU, Qiuyou ,  ZHANG, Fatai ,  HAN, Jianrui ,  ZI, Xiaobing

IPC分类号： H04L5/22 ,  H04J3/16

CPC分类号： H04L47/724 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0067 ,  H04Q11/0066 ,  H04Q2011/0086

摘要： Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message which is sent by a neighboring node and carries a service type; determining, according to the service path request message, an OTU link used to bear the ODU service, determining and reserving, according to the service type in the service path request message, a free tributary slot resource used to bear the ODU service in the OTU link, and assigning a tributary port number to the free tributary slot resource; and sending a service path acknowledgment message to the neighboring node. In the method, apparatus, and system for assigning a tributary port number in the embodiments of the present invention, the tributary port number is obtained automatically instead of being assigned manually through a network management system, and therefore, the efficiency of assigning the tributary port number is improved. Because the manual operation is avoided, the error rate of assigning the tributary port number is reduced.

公开(公告)号：EP3267605A1

公开(公告)日：2018-01-10

申请号：EP16178491.3

申请日：2016-07-07

申请人： ADVA Optical Networking SE

发明人： Pachnicke, Stephan

IPC分类号： H04J14/02

CPC分类号： H04J14/0256 ,  H04J14/0276 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0086

摘要： The invention relates to a method for establishing an embedded optical communication channel in an optical WDM transmission system, the optical WDM transmission system (1, 100) comprising a plurality of first channel transceivers (29) at a first end (5) of a bidirectional optical WDM transmission path (3), a plurality of second channel transceivers (19) at a second end (9) of the optical WDM transmission path (3) and a central network device (35) connected to the optical WDM transmission path (3), each first channel transceiver (29) being configured to create and transmit a first optical channel signal (DS Chi ), in a respective downstream channel, to the second end (9) of the optical WDM transmission path (3) and to receive a second optical channel signal (US Chi ) created by a second channel transceiver (19) and each second channel transceiver (19) being configured to create and transmit a second optical channel signal (US Chi ), in a respective upstream channel, to the first end (5) of the optical WDM transmission path (3) and to receive a first optical channel signal (DS Chi ) created by a first channel transceiver (29). The method is characterized by the steps of: creating, at the central network device (35), a broadband optical signal (S BR ) having an optical spectrum which covers at least a group of neighboring or all optical upstream channels (US Chi ) of the optical WDM transmission system (1, 100), the optical power of the broadband optical signal (S BR ) being modulated according to a low-frequency modulation signal in such a way that there is no or no unacceptable spectral overlap of the low-frequency spectrum of the low-frequency modulation signal and any of the modulation spectra of the second optical channel signals (US Chi ); supplying the broadband optical signal (S BR ), at a predefined position between the first (5) and second end (9), to the optical WDM transmission path (3) in the direction of the first end (5) thereof; transmitting the broadband optical signal (S BR ) and the plurality of second optical channel signals (US CHi ), if any, to an optical demultiplexer device (33), which is connected to the first end (5) of the optical WDM transmission path (3) and which optically filters and spatially separates the incoming optical signals according to optical channel bandwidths predefined for the optical WDM transmission system (1, 100); transmitting, from the demultiplexer device to each of the plurality of channel transceivers, an optical signal consisting of a dedicated second optical channel signal, if any, and a filtered broadband optical signal; receiving, at each first channel transceiver (29), the optical signal and creating a corresponding electrical receive signal comprising a second electrical channel signal corresponding to the dedicated second optical channel signal (US Chi ) and an electrical signal corresponding to the filtered broadband optical signal (S BR ); and extracting, at each first channel transceiver (29), the electrical signal corresponding to the filtered broadband optical signal (S BR ) from the electrical receive signal and detecting whether the electrical signal contains information intended for the respective rist channel transceiver (29).

摘要翻译： 本发明涉及一种用于在光WDM传输系统中建立嵌入式光通信信道的方法，所述光WDM传输系统（1,100）包括在双向通信信道的第一端（5）处的多个第一信道收发器（29） （3），在所述光WDM传输路径（3）的第二端（9）处的多个第二信道收发器（19）和连接到所述光WDM传输路径（3）的中央网络设备（35） ），每个第一信道收发器（29）被配置为在相应的下行信道中创建并发送第一光信道信号（DSChi）到光WDM传输路径（3）的第二端（9）并且接收 由第二信道收发器（19）创建的第二光信道信号（USChi）和每个第二信道收发器（19）被配置为在相应的上行信道中创建并发送第二光信道信号（USChi）到第一端 5） e光WDM传输路径（3）并且接收由第一信道收发器（29）创建的第一光信道信号（DSChi）。 该方法的特征在于以下步骤：在中央网络设备（35）处创建具有光谱的宽带光信号（SBR），该光谱覆盖至少一组光学上游信道（USChi）的光学上游信道 WDM传输系统（1,100）中，根据低频调制信号调制宽带光信号（SBR）的光功率，使得不存在或不存在不可接受的频谱重叠的低频频谱 低频调制信号和第二光信道信号（USChi）的任何调制频谱; 在所述第一端（5）和所述第二端（9）之间的预定位置处沿所述光学WDM传输路径（3）的所述第一端（5）的方向提供所述宽带光学信号（SBR） 如果有的话，将宽带光信号（SBR）和多个第二光信道信号（USCHi）发送到光多路分解器装置（33），光多路分解器装置（33）连接到光WDM传输路径（3）的第一端 ），并且根据为所述光WDM传输系统（1,100）预定义的光学信道带宽来光学滤波和空间分离所述传入光信号; 从所述解复用器设备向所述多个信道收发器中的每一个传输由专用第二光信道信号（如果有的话）和经滤波的宽带光信号组成的光信号; 在每个第一信道收发器（29）处接收光信号并且创建对应的电接收信号，该对应的电接收信号包括对应于专用第二光信道信号（USChi）的第二电信道信号和对应于经滤波的宽带光信号（USChi）的电信号 SBR）; 以及在每个第一信道收发器（29）处从电接收信号中提取与经滤波的宽带光信号（SBR）对应的电信号，并检测电信号是否包含旨在用于各个第一信道收发器（29）的信息。

公开(公告)号：EP3035574B1

公开(公告)日：2017-11-22

申请号：EP15200044.4

申请日：2015-12-15

申请人： Juniper Networks, Inc.

发明人： SCHMIDTKE, Hans-Juergen ,  GRAMMEL, Gert

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0268 ,  H04J14/0257 ,  H04J2203/0055 ,  H04J2203/0057 ,  H04J2203/0058 ,  H04J2203/0098 ,  H04Q2011/0075 ,  H04Q2011/0086

摘要： Techniques are described for wavelength and spectrum assignment within a packet-optical transport system. A controller, for example, dynamically controls wavelength and spectrum assignment to suppress or generally avoid optical effects that can degrade communication performance. For example, the controller provides closed-loop control over dynamic partitioning of the spectral range of an optical transport system into channel groups and assignment of the groups to respective packet-optical transport devices based on current or future bandwidth requirements at each device. Moreover, for each packet-optical transport device, the controller controls assignment of individual wavelengths within each channel group so as to balance channel utilization around a center of the spectral range associated with each channel group and to maintain spectral separation of the channels within the channel group.

公开(公告)号：EP2575273B1

公开(公告)日：2017-11-01

申请号：EP12199370.3

申请日：2009-06-09

申请人： Huawei Technologies Co., Ltd.

发明人： Su, Wei ,  Ding, Chiwu ,  Dong, Limin ,  Wu, Qiuyou

IPC分类号： H04J3/16

CPC分类号： H04L47/826 ,  H04J3/1652 ,  H04J3/1664 ,  H04J2203/0067 ,  H04J2203/0098 ,  H04L47/765 ,  H04Q11/0066 ,  H04Q2011/0086

摘要： The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and an ODUflex channel. The lossless adjustment method includes: respectively adjusting, according to bandwidth adjustment indication request information, a time slot occupied by an ODUflex frame in a higher order optical channel data unit at an egress side of each network node on an ODUflex channel; and adjusting, according to rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, to enable the transmission rate of each network node on the ODUflex channel to be unified. The embodiments of the present invention achieve the lossless adjustment of ODUflex channel bandwidth by respectively adjusting a time slot occupied by an ODUflex frame in a Higher Order Optical Channel Data Unit at an egress side of each network node on an ODUflex channel, and adjusting a transmission rate of an ODUflex frame of each network node on the ODUflex channel.

公开(公告)号：EP3223465A1

公开(公告)日：2017-09-27

申请号：EP17167843.6

申请日：2013-12-17

申请人： Nippon Telegraph and Telephone Corporation

发明人： Iiyama, Noriko ,  Kani, Jun-ichi ,  Shibata, Naotaka

IPC分类号： H04L12/44 ,  H04Q11/00

CPC分类号： H04W52/0203 ,  H04B10/25753 ,  H04B10/272 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0086 ,  H04W72/1289 ,  H04W88/085 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/46

摘要： An object of the present invention is to prevent, in an optical-wireless access system in which a cellular and a PON are connected in series, increases in a communication delay time, power consumption, and cost resulting from dynamic scheduling and pause control in the cellular and the PON.
In the optical-wireless access system of this invention and a method of operating the optical-wireless access system, an ONU obtains information on dynamic scheduling control of the optical-wireless access system, information on discontinuous reception control of the optical-wireless access system, or both of them, and these information is used in the ONU or transferred to an OLT and used as parameters of scheduling in the PON and sleep control.

摘要翻译： 本发明的一个目的是在其中蜂窝和PON串联连接的光无线接入系统中防止通信系统中的动态调度和暂停控制导致的通信延迟时间，功耗和成本增加 蜂窝和PON。 在本发明的光无线接入系统和光无线接入系统的操作方法中，ONU获得关于光无线接入系统的动态调度控制的信息，关于光无线接入系统的不连续接收控制的信息 或者两者兼而有之，并且这些信息在ONU中使用或者被传送到OLT并用作PON和睡眠控制中的调度参数。