公开(公告)号：US20100158519A1

公开(公告)日：2010-06-24

申请号：US12721338

申请日：2010-03-10

申请人： Limin Dong ,  Qiuyou Wu ,  Qiwen Zhong ,  Zhiying Yao ,  Maarten Vissers

发明人： Limin Dong ,  Qiuyou Wu ,  Qiwen Zhong ,  Zhiying Yao ,  Maarten Vissers

IPC分类号： H04J14/00

CPC分类号： H04J14/086 ,  H04J3/1652 ,  H04J3/1664

摘要： The present invention provides a method, apparatus and system for transmitting and receiving a client signal. The method for transmitting a client signal includes, at the transmitting end, mapping a client signal to be transmitted to a corresponding low-order Optical Channel Data Unit (ODU) in a low-order ODU set, wherein low-order ODUs in the low-order ODU set having rates increased in order, and having rate correspondence relations with the client signals; mapping the low-order ODU to a timeslot of a high-order Optical Channel Payload Unit (OPU) in a high-order OPU set; and adding overheads to the high-order OPU to form an Optical Channel Transport Unit (OTU), and transferring the OTU to an Optical Transport Network (OTN) for transmission.

摘要翻译： 本发明提供一种用于发送和接收客户端信号的方法，装置和系统。 用于发送客户端信号的方法包括在发送端将要发送的客户端信号映射到低阶ODU集合中的对应低阶光信道数据单元（ODU），其中低阶ODU在低 具有按顺序增加速率且具有与客户端信号的速率对应关系的顺序ODU组; 将低阶ODU映射到高阶OPU组中的高阶光信道有效载荷单元（OPU）的时隙; 并向高阶OPU添加开销以形成光信道传输单元（OTU），并将OTU传送到光传送网（OTN）进行传输。

公开(公告)号：US20090263135A1

公开(公告)日：2009-10-22

申请号：US12496039

申请日：2009-07-01

申请人： Limin DONG ,  Qiuyou Wu

发明人： Limin DONG ,  Qiuyou Wu

IPC分类号： H04J14/08

CPC分类号： H04J3/1652

摘要： A method for transporting a client signal in an optical transport network (OTN) includes steps as follows. A byte number Cn of a client signal transported in a current OTN frame period is generated according to a client signal clock and a system clock. If the Cn of the current OTN frame falls in a certain range, a predetermined area in an optical channel payload unit-k (OPUk) overhead field is identified as normal, and the Cn is filled in the OPUk overhead field of the current OTN frame. Therefore, the reliability for transporting the client byte number can be improved and an OPUk overhead byte space needed for transporting the client signal byte number can be saved.

摘要翻译： 用于在光传输网络（OTN）中传送客户端信号的方法包括以下步骤。 根据客户端信号时钟和系统时钟生成在当前OTN帧周期中传送的客户端信号的字节数Cn。 如果当前OTN帧的Cn落在一定范围内，则将光信道有效载荷单位k（OPUk）开销字段中的预定区域标识为正常，并将Cn填充在当前OTN帧的OPUk开销字段中 。 因此，可以提高用于传送客户端字节数的可靠性，并且可以节省用于传送客户端信号字节数所需的OPUk开销字节空间。

公开(公告)号：US09209922B2

公开(公告)日：2015-12-08

申请号：US13315525

申请日：2011-12-09

申请人： Wei Su ,  Chiwu Ding ,  Limin Dong ,  Qiuyou Wu

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

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 application relate to the field of communications technologies, and disclose a method for adjusting bandwidth of a flexible Optical channel Data Unit (ODUflex) channel. The method includes: respectively adjusting, according to a bandwidth adjustment indication message, a quantity of time slots occupied by an ODUflex frame in a higher order optical channel data unit (HO ODU) at an egress side of each network node on an ODUflex channel; and adjusting, according to a rate adjustment indication message, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, so as to unify the transmission rate of each network node on the ODUflex channel.

摘要翻译： 本申请的实施例涉及通信技术领域，并且公开了一种用于调整灵活光通道数据单元（ODUflex）信道的带宽的方法。 该方法包括：根据带宽调整指示消息分别在ODUflex信道上的每个网络节点的出口侧的高阶光信道数据单元（HO ODU）中分配由ODUflex帧占用的时隙量; 根据速率调整指示消息，调整ODUflex信道上每个网络节点的ODUflex帧的传输速率，以便统一ODUflex信道上每个网络节点的传输速率。

公开(公告)号：US08824505B2

公开(公告)日：2014-09-02

申请号：US13281280

申请日：2011-10-25

申请人： Limin Dong ,  Qiuyou Wu

发明人： Limin Dong ,  Qiuyou Wu

IPC分类号： H04J3/24 ,  H04J3/16 ,  H04J3/02

CPC分类号： H04J3/1652 ,  H04J3/1658 ,  H04J3/1664

摘要： Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: receiving a client signal; determining a quantity of n-bit data units of the client signal based on a clock of the client signal and a local clock; mapping the quantity of n-bit data units of the client signal to an overhead of a first Optical Channel Data Tributary Unit (ODTU) frame; mapping the n-bit data units of the client signal to a payload area of a second ODTU frame next to the first ODTU frame according to the quantity of n-bit data units mapped in the overhead of the first ODTU frame; mapping each n-bit data unit of the second ODTU frame to an Optical Channel Payload Unit-k Tributary Slot (OPUk TS) in an OPUk frame; and forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.

摘要翻译： 示出了在OTN中传送客户端信号的方法和装置。 在一个实施例中，该方法包括：接收客户端信号; 基于客户信号和本地时钟的时钟确定客户端信号的n位数据单元的数量; 将客户端信号的n位数据单元的数量映射到第一光信道数据支路单元（ODTU）帧的开销; 根据映射在第一ODTU帧的开销中的n位数据单元的数量，将客户端信号的n位数据单元映射到第一ODTU帧旁边的第二ODTU帧的净荷区域; 将第二ODTU帧的每个n位数据单元映射到OPUk帧中的光信道有效负载单元k支持时隙（OPUk TS）; 以及形成包括用于传输的OPUk帧的光信道传输单元k（OTUk）帧。

公开(公告)号：US08422515B2

公开(公告)日：2013-04-16

申请号：US12853579

申请日：2010-08-10

申请人： Limin Dong ,  Chiwu Ding ,  Qiuyou Wu ,  Xin Xiao

发明人： Limin Dong ,  Chiwu Ding ,  Qiuyou Wu ,  Xin Xiao

IPC分类号： H04J3/16 ,  H04J3/22

CPC分类号： H04J3/1652 ,  H04J3/07 ,  H04J2203/0091 ,  H04J2203/0094

摘要： A method, a system, and a device for transmitting data in an OTN are disclosed herein. The method for transmitting data in an OTN includes: mapping the at least one pair of ODU0's to an ODTU to form an ODTUvkt, wherein k is greater than or equal to 1, t is 2 or 3, and an external structure of the ODTUvkt is the same as an external structure of an ODTUkt; and mapping the ODTUvkt to timeslot i and timeslot i+n of a 1.25 G ODUt, indicating the type of at least one pair of ODU0's carried in timeslot i to be ODUk, and transmitting the ODUk to a destination node.

摘要翻译： 本文公开了一种在OTN中传输数据的方法，系统和设备。 用于在OTN中发送数据的方法包括：将至少一对ODU0映射到ODTU以形成ODTUvkt，其中k大于或等于1，t为2或3，并且ODTUvkt的外部结构为 与ODTUkt的外部结构相同; 并将ODTUvkt映射到1.25G ODUt的时隙i和时隙i + n，指示时隙i中携带的至少一对ODU0的类型为ODUk，并将ODUk发送到目的地节点。

公开(公告)号：US08305925B2

公开(公告)日：2012-11-06

申请号：US12559696

申请日：2009-09-15

申请人： Limin Dong ,  Qiuyou Wu

发明人： Limin Dong ,  Qiuyou Wu

IPC分类号： G01R31/08 ,  H04J3/16

CPC分类号： H04L12/66 ,  H04J3/07 ,  H04J3/1658 ,  H04J2203/0085 ,  H04J2203/0094

摘要： Methods, apparatuses and systems for transporting multi-lane Ethernet signal are disclosed. The method primarily includes utilizing a plurality of timeslot channels and justification bytes configured in the OPUk-Xv to build up multiple virtually concatenated transport lanes; and transporting a lane of independent Ethernet data via each lane in the multiple transport lanes. Such schema allows to transparently transport multi-lane Ethernet signal over OTN and addresses the uncontrollability of the time delay occurred when multi-lane Ethernet signal traverse over OTN. In addition, the problem that the frequency offset does not fit the IEEE definition of the Ethernet interface is solved.

摘要翻译： 公开了用于传输多通道以太网信号的方法，装置和系统。 该方法主要包括利用在OPUk-Xv中配置的多个时隙信道和对齐字节来建立多个虚拟级联的传输通道; 以及通过多个运输车道中的每条车道运送独立以太网数据的车道。 这种模式允许通过OTN透明地传输多通道以太网信号，并解决了多通道以太网信号穿越OTN时发生的时间延迟的不可控制性。 另外，解决了频率偏移不符合IEEE定义的以太网接口的问题。

公开(公告)号：US20100303464A1

公开(公告)日：2010-12-02

申请号：US12853579

申请日：2010-08-10

申请人： Limin DONG ,  Chiwu Ding ,  Qiuyou Wu ,  Xin Xiao

发明人： Limin DONG ,  Chiwu Ding ,  Qiuyou Wu ,  Xin Xiao

IPC分类号： H04J14/08

CPC分类号： H04J3/1652 ,  H04J3/07 ,  H04J2203/0091 ,  H04J2203/0094

摘要： A method, a system, and a device for transmitting data in an OTN are disclosed herein. The method for transmitting data in an OTN includes: mapping the at least one pair of ODU0's to an ODTU to form an ODTUvkt, wherein k is greater than or equal to 1, t is 2 or 3, and an external structure of the ODTUvkt is the same as an external structure of an ODTUkt; and mapping the ODTUvkt to timeslot i and timeslot i+n of a 1.25 G ODUt, indicating the type of at least one pair of ODU0's carried in timeslot i to be ODUk, and transmitting the ODUk to a destination node.

摘要翻译： 本文公开了一种在OTN中传输数据的方法，系统和设备。 用于在OTN中发送数据的方法包括：将至少一对ODU0映射到ODTU以形成ODTUvkt，其中k大于或等于1，t为2或3，并且ODTUvkt的外部结构为 与ODTUkt的外部结构相同; 并将ODTUvkt映射到1.25G ODUt的时隙i和时隙i + n，指示时隙i中携带的至少一对ODU0的类型为ODUk，并将ODUk发送到目的地节点。

公开(公告)号：US20100067905A1

公开(公告)日：2010-03-18

申请号：US12622973

申请日：2009-11-20

申请人： Limin Dong ,  Qiuyou Wu

发明人： Limin Dong ,  Qiuyou Wu

IPC分类号： H04J14/00

CPC分类号： H04J3/1652 ,  H04J3/1658 ,  H04J3/1664

摘要： A method for transmitting client signals in an OTN includes: obtaining the client signals, and determining an OPUk TS in an OPUk according to the client signals; mapping the client signals to the OPUk TS in an agnostic CBR mapping mode; and adding an overhead into the OPUk, and sending the OPUk with the added overhead to the OTN. A device for transmitting client signals and a device for receiving client signals in an OTN are disclosed.

摘要翻译： 一种用于在OTN中发送客户端信号的方法包括：获取客户端信号，并根据客户端信号确定OPUk中的OPUK TS; 将客户端信号以不可知的CBR映射模式映射到OPUk TS; 并向OPUk添加开销，并向OTN发送带有额外开销的OPUk。 公开了一种用于发送客户端信号的设备和用于在OTN中接收客户端信号的设备。

公开(公告)号：US08693480B2

公开(公告)日：2014-04-08

申请号：US12721338

申请日：2010-03-10

申请人： Limin Dong ,  Qiuyou Wu ,  Qiwen Zhong ,  Zhiying Yao ,  Maarten Vissers

发明人： Limin Dong ,  Qiuyou Wu ,  Qiwen Zhong ,  Zhiying Yao ,  Maarten Vissers

IPC分类号： H04L12/28

CPC分类号： H04J14/086 ,  H04J3/1652 ,  H04J3/1664

摘要： The present invention provides a method, apparatus and system for transmitting and receiving a client signal. The method for transmitting a client signal includes, at the transmitting end, mapping a client signal to be transmitted to a corresponding low-order Optical Channel Data Unit (ODU) in a low-order ODU set, wherein low-order ODUs in the low-order ODU set having rates increased in order, and having rate correspondence relations with the client signals; mapping the low-order ODU to a timeslot of a high-order Optical Channel Payload Unit (OPU) in a high-order OPU set; and adding overheads to the high-order OPU to form an Optical Channel Transport Unit (OTU), and transferring the OTU to an Optical Transport Network (OTN) for transmission.

摘要翻译： 本发明提供一种用于发送和接收客户端信号的方法，装置和系统。 用于发送客户端信号的方法包括在发送端将要发送的客户端信号映射到低阶ODU集合中的对应低阶光信道数据单元（ODU），其中低阶ODU在低 具有按顺序增加速率且具有与客户端信号的速率对应关系的顺序ODU组; 将低阶ODU映射到高阶OPU组中的高阶光信道有效载荷单元（OPU）的时隙; 并向高阶OPU添加开销以形成光信道传输单元（OTU），并将OTU传送到光传送网（OTN）进行传输。

公开(公告)号：US20130121700A1

公开(公告)日：2013-05-16

申请号：US13592876

申请日：2012-08-23

申请人： Limin Dong ,  Qiuyou Wu

发明人： Limin Dong ,  Qiuyou Wu

IPC分类号： H04J14/00

CPC分类号： H04J3/1652 ,  H04J14/0273 ,  H04L1/0056 ,  H04L27/2697

摘要： The embodiments of the present disclosure provide a method, an apparatus, and a system for transmitting service data on an optical transport network. The method includes: mapping the service data into a low order flexible optical channel data unit (ODUflex); multiplexing multiple low order ODUflexs into a high order ODUflex; adding a forward error correction (FEC) overhead into the high order ODUflex to generate a flexible optical channel transport unit (OTUflex); and splitting the OTUflex into multiple data channel signals, and modulating the data channel signals to orthogonal frequency division multiplexing subcarriers to send the orthogonal frequency division multiplexing subcarriers. The foregoing solution provides OTUflexs. Therefore, the network adapts service data for flexibly variable line rates of the optical transport network through a control protocol, and transmits service data of different rates to meet the development requirements of higher-rate optical transport networks.

摘要翻译： 本公开的实施例提供了一种用于在光传输网络上传输服务数据的方法，装置和系统。 该方法包括：将服务数据映射到低阶柔性光通道数据单元（ODUflex）中; 将多个低阶ODUflex复用成高阶ODUflex; 向高阶ODUflex增加前向纠错（FEC）开销以产生灵活的光信道传输单元（OTUflex）; 并将OTUflex分为多个数据信道信号，并将数据信道信号调制为正交频分复用子载波，发送正交频分复用子载波。 上述解决方案提供OTUflex。 因此，网络通过控制协议适应光传输网络的灵活可变线路速率的业务数据，并发送不同速率的业务数据，以满足高速光传输网络的发展需求。