Signal Sending and Receiving Method, Apparatus, and System

    公开(公告)号:US20220239379A1

    公开(公告)日:2022-07-28

    申请号:US17650873

    申请日:2022-02-14

    摘要: An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mi times the benchmark rate, n≥2, X≥2, mi≥1, and ∑ i = 1 X m i = n .

    Service mapping processing method for optical transport network, apparatus, and system

    公开(公告)号:US11483088B2

    公开(公告)日:2022-10-25

    申请号:US16895841

    申请日:2020-06-08

    IPC分类号: H04J3/16 H04B10/27 H04L12/46

    摘要: A service mapping processing method for an optical transport network, an apparatus, and a system are provided, where the method includes: generating mapping adaptation indication information according to a mapping granularity of a to-be-carried LO ODU, where the mapping granularity is M×g bytes, M is a quantity of timeslots occupied by the to-be-carried LO ODU in an OPUCn, g is a size of a mapping granularity corresponding to each timeslot of the timeslots occupied by the LO ODU, and g is a positive integer greater than 1; mapping, according to the mapping adaptation indication information, the to-be-carried LO ODU to an ODTUCn.M payload area; encapsulating the mapping adaptation indication information into the ODTUCn.M overhead area; encapsulating the ODTUCn.M into an OTUCn; and sending the OTUCn to a receive end device. The method avoids that OTUCns that use different mapping granularities cannot interwork between a receive end and a transmit end.

    Optical supervisory channel processing method and apparatus in optical network

    公开(公告)号:US10826636B2

    公开(公告)日:2020-11-03

    申请号:US16741121

    申请日:2020-01-13

    摘要: An overhead processing technology in an optical network and an overheads processing method, including: generating, by a network device, an optical supervisory channel (OSC) frame, where the OSC frame includes a plurality of overhead code block units, each of the plurality of overhead code block units bears an overhead of one type, the OSC frame carries overhead identification information, the overhead identification information is used to identify overhead types of overheads born by the plurality of overhead code block units, and overheads include an optical transmission section overhead, an optical multiplex section overhead, and an optical tributary signal assembly overhead; and sending, by the network device, the OSC frame.

    Method and Apparatus for Transmitting Optical Transport Unit Signal

    公开(公告)号:US20200266926A1

    公开(公告)日:2020-08-20

    申请号:US16867205

    申请日:2020-05-05

    IPC分类号: H04L1/00 H04B10/40

    摘要: A first optical network device groups a plurality of FlexO instance frames into one group, where each of the plurality of FlexO instance frames carries one OTU signal; then, performs multiplexing on the plurality of FlexO instance frames grouped into one group, to generate one first FlexO frame; next, performing scrambling and FEC processing on the first FlexO frame to generate one second FlexO frame and send it to a second optical network device. If a rate of the FlexO instance frame is 100 Gbps and two FlexO instance frames are grouped into one group, the 200G optical module can be used in the transmission method.