公开(公告)号：US20120057870A1

公开(公告)日：2012-03-08

申请号：US13295613

申请日：2011-11-14

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 ,  H04B10/06 ,  H04B10/04

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：US20120039609A1

公开(公告)日：2012-02-16

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： H04J14/00

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：US20120082456A1

公开(公告)日：2012-04-05

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： H04J14/00

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.

摘要翻译： 本发明的实施例涉及通信技术领域，并公开了ODUflex信道带宽的无损调整方法和ODUflex信道。 无损调整方法包括：根据带宽调整指示请求信息，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中的ODUflex帧占用的时隙; 根据速率调整指示信息调整ODUflex通道上每个网络节点的ODUflex帧的传输速率，使ODUflex通道上每个网络节点的传输速率统一。

公开(公告)号：US20110044686A1

公开(公告)日：2011-02-24

申请号：US12941472

申请日：2010-11-08

申请人： Qiuyou WU ,  Yao SHEN

发明人： Qiuyou WU ,  Yao SHEN

IPC分类号： H04J14/00

CPC分类号： H04J3/1652 ,  H04J2203/0089 ,  Y10S370/907

摘要： A method and a device for mapping and demapping a client signal are provided. The method for mapping a client signal includes: dividing a part or all of a payload area of an Optical Channel Payload Unit (OPU) or Optical channel Data Tributary Unit (ODTU) into several sub-blocks, in which the sub-blocks have a size of N bytes, and N is greater than or equal to 1; and mapping a client signal to be transported to the sub-blocks of the payload area with an N-byte granularity. In the technical solutions, when the client signal is mapped, block mapping of the client signal is performed by using a mapping granularity of a block, so that the complexity of the mapping process of the client signal can be reduced, thereby meeting requirements of multi-rate services.

摘要翻译： 提供了一种用于映射和解映射客户端信号的方法和设备。 用于映射客户端信号的方法包括：将光信道有效载荷单元（OPU）或光信道数据支路单元（ODTU）的有效载荷区域的一部分或全部划分成若干子块，其中子块具有 N字节大小，N大于或等于1; 并将要传送的客户端信号映射到N字节粒度的有效负载区域的子块。 在技​​术方案中，当客户信号被映射时，通过使用块的映射粒度来执行客户端信号的块映射，从而可以减少客户端信号的映射处理的复杂度，从而满足多 - 服务。

公开(公告)号：US20090208208A1

公开(公告)日：2009-08-20

申请号：US12430471

申请日：2009-04-27

申请人： Ming CHEN ,  Qiuyou WU

发明人： Ming CHEN ,  Qiuyou WU

IPC分类号： H04J14/00

CPC分类号： H04J3/1658 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0273 ,  H04J2203/0085

摘要： A method, apparatus and system for transmitting Ethernet signals in an OTN are provided. The method may include: mapping the Ethernet signals to timeslot units, where a VCG composed of multiple OPUs is divided into the timeslot units; mapping the Ethernet signals into the OPUs, and then mapped into OTUs and output to the OTN for transmitting. In this way, the Ethernet signals may be transmitted in the OTN transparently. The apparatus may further include: a first adaptation protocol frame mapping module, a first virtual concatenation module, and a first line terminal module, which convert the Ethernet signals to the OTUs. The system may include a first adaptation protocol frame mapping module, a second adaptation protocol frame mapping module, a first virtual concatenation module, a second virtual concatenation module, a first line terminal module, and a second line terminal module, which convert the Ethernet signals to the OTUs and vice versa.

摘要翻译： 提供了一种在OTN中传输以太网信号的方法，装置和系统。 该方法可以包括：将以太网信号映射到时隙单元，其中由多个OPU组成的VCG被划分成时隙单元; 将以太网信号映射到OPU中，然后映射到OTU并输出到OTN进行传输。 以这种方式，以太网信号可以透明地以OTN传输。 该装置还可以包括：第一自适应协议帧映射模块，第一虚拟级联模块和第一线路终端模块，其将以太网信号转换成OTU。 该系统可以包括第一适配协议帧映射模块，第二适配协议帧映射模块，第一虚拟级联模块，第二虚拟级联模块，第一线路终端模块和第二线路终端模块，其将以太网信号 到OTU，反之亦然。