公开(公告)号：US20210099233A1

公开(公告)日：2021-04-01

申请号：US17122142

申请日：2020-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei SU ,  Qiuyou WU ,  Limin DONG

IPC: H04B10/516 ,  H04J3/16 ,  H04B10/27

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting and receiving a client signal in an optical transport network. In the transmission method, a received client signal is mapped into a variable-rate container OTU-N, wherein a rate of the OTU-N is N times as high as a preset reference rate; and then, the variable-rate container OTU-N is split into N optical stab-channel transport units OTUsubs by column, where a rate of each OTUsub equals to the reference rate; next, the N optical sub-channel transport units OTUsubs are modulated onto one or more optical carriers; at last, the one or more optical carriers is transmitted through a fiber.

公开(公告)号：US20200092029A1

公开(公告)日：2020-03-19

申请号：US16691273

申请日：2019-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maarten VISSERS ,  Qiuyou WU ,  Xin XIAO ,  Wei SU

IPC: H04J14/08 ,  H04B10/27 ,  H04J3/16

Abstract: The embodiments of the present invention disclose methods and apparatuses for mapping processing and de-mapping processing in an optical transport network. a Low Order Optical Channel Data Unit (LO ODU) signal is mapped into a payload area of an Optical Channel Data Tributary (ODTU) signal in units of M bytes. M is equal to the number of time slots of a High Order Optical Channel Payload Unit (HO OPU) that are to be occupied by the ODTU signal, and M is an integer larger than 1. Overhead information is encapsulated to an overhead area of the ODTU signal. Thereafter, the ODTU signal is multiplexed into the HO OPU. In this way, an efficient and universal mode for mapping the LO ODU to the HO OPU is provided.

公开(公告)号：US20200007257A1

公开(公告)日：2020-01-02

申请号：US16503156

申请日：2019-07-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Limin DONG ,  Qiuyou WU

IPC: H04J3/16

Abstract: Method and apparatus for transporting client signals in an OTN are illustrated. In one embodiment, the method includes: mapping a client signal into a first Optical Channel Data Tributary Unit (ODTU) frame including an ODTU payload area and an ODTU overhead area, such that a plurality of n-bit data units of the client signal are inserted into the ODTU payload area and number information is inserted into the ODTU overhead area; mapping the first ODTU frame into the OPUk frame, such that the plurality of n-bit data units are mapped into an OPUk payload part occupying at least one Tributary Slot (TS) of the OPUk payload area and the number information of the ODTU overhead area is mapped into a first OPUk overhead part of the OPUk frame; forming an Optical Channel Transport Unit-k (OTUk) frame including the OPUk frame for transmission.

公开(公告)号：US20190319742A1

公开(公告)日：2019-10-17

申请号：US16453795

申请日：2019-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiuyou WU ,  Wei SU ,  Qiwen ZHONG

IPC: H04L1/00 ,  H04L1/18

Abstract: This application provides a radio fronthaul interface signal transmission method, a device, and a system. A network device obtains a radio fronthaul interface signal including a plurality of code blocks. The network device maps the radio fronthaul interface signal to M flexible Ethernet FlexE service layer timeslots to generate a FlexE signal, where the FlexE service layer timeslots are determined based on a rate of the radio fronthaul interface signal, and M is a positive integer greater than or equal to 1. The network device sends the FlexE signal to one or more physical lanes. The radio fronthaul interface signal such as a CPRI signal, an eCPRI signal, or an NGFI signal is carried by using FlexE, and the FlexE service layer timeslots are divided based on the rate of the radio fronthaul interface signal.

公开(公告)号：US20150104178A1

公开(公告)日：2015-04-16

申请号：US14573486

申请日：2014-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei SU ,  Chiwu DING ,  Qiuyou WU ,  Huaping QING ,  Yao SHEN ,  Hongli JIANG ,  Jianying WEI

IPC: H04B10/27 ,  H04L27/26

CPC classification number: H04B10/27 ,  H04J3/1652 ,  H04J3/1694 ,  H04L27/2601 ,  H04Q2213/1301

Abstract: Embodiments of the present invention provide a method and an apparatus for allocating optical spectrum bandwidth resources. The method includes: first determine bandwidth of an OTUbase according to optical-layer frequency grid bandwidth and carrier spectrum efficiency; then construct an HO OTUflex according to bandwidth of customer service data and the bandwidth of the OTUbase, bandwidth of the HO OTUflex is a first integer multiple of the bandwidth of the OTUbase; map the customer service data into a payload area of the HO OTUflex and encapsulate overhead information; at last, modulate the HO OTUflex that carries the customer service data to a second integer number of optical channel carriers. The embodiments of the present invention apply to a scenario where customer service data is transported.

Abstract translation: 本发明的实施例提供了一种用于分配光谱带宽资源的方法和装置。 该方法包括：首先根据光层频率网格带宽和载波频谱效率确定OTUbase的带宽; 然后根据客户服务数据的带宽和OTUbase的带宽构建一个HO OTUflex，HO OTUflex的带宽是OTUbase带宽的第一个整数倍; 将客户服务数据映射到HO OTUflex的有效载荷区域并封装开销信息; 最后，将携带客户业务数据的HO OTUflex调制为第二个整数个光信道载波。 本发明的实施例适用于传送客户服务数据的场景。

公开(公告)号：US20150093113A1

公开(公告)日：2015-04-02

申请号：US14566478

申请日：2014-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maarten VISSERS ,  Qiuyou WU ,  Xin XIAO ,  Wei SU

IPC: H04J14/08 ,  H04B10/27

CPC classification number: H04J14/08 ,  H04B10/27 ,  H04J3/1652

Abstract: The embodiments of the present invention disclose methods and apparatuses for mapping processing and de-mapping processing in an optical transport network. A Lower Order Optical Channel Data Unit (LO ODU) signal is mapped into a payload area of an Optical Channel Data Tributary (ODTU) signal in units of M bytes. M is equal to the number of tributary slots of a Higher Order Optical Channel Payload Unit (HO OPU) that are to be occupied by the ODTU signal, and M is an integer larger than 1. Overhead information is encapsulated to an overhead area of the ODTU signal. Thereafter, the ODTU signal is multiplexed into the HO OPU. In this way, an efficient and universal mode for mapping the LO ODU to the HO OPU is provided.

Abstract translation: 本发明的实施例公开了用于在光传输网络中映射处理和解映射处理的方法和装置。 低阶光信道数据单元（LO ODU）信号以M字节为单位映射到光信道数据支路（ODTU）信号的有效载荷区域。 M等于要被ODTU信号占用的高阶光通道有效负载单元（HO OPU）的支路时隙数，M是大于1的整数。开销信息被封装到 ODTU信号。 此后，将ODTU信号复用到HO OPU中。 以这种方式，提供了用于将LO ODU映射到HO OPU的有效且通用的模式。