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Client service data transmission method and device, optical transport network equipment and storage medium

A technology of business data and optical transport network, which is applied in the field of communication, can solve the problems of FEC type selection and internal time slot division restrictions, and achieve the effects of improving utilization efficiency, realizing decoupling, and enhancing adaptability

Active Publication Date: 2020-02-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The client service data transmission method, device, optical transport network equipment, and storage medium provided by the embodiments of the present invention are intended to solve the problem that the structure of the OTN interface frame used when transmitting different types of customer service data in the related art is a frame structure of a fixed format , the resulting FEC type selection and internal time slot division are limited

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  • Client service data transmission method and device, optical transport network equipment and storage medium
  • Client service data transmission method and device, optical transport network equipment and storage medium
  • Client service data transmission method and device, optical transport network equipment and storage medium

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Embodiment 1

[0041]In order to solve the problem that the OTN interface frame structure adopted in the transmission of different types of customer service data is a frame structure with a fixed format, resulting in the problem of limited FEC type selection and internal time slot division, this embodiment provides a customer service For data transfer methods, see figure 1 The flow chart of the customer service data transmission method shown:

[0042] S101: Perform mapping processing on the accessed customer service data to an optical channel data unit.

[0043] In order to realize the transmission of customer service data, the customer service data must first be mapped to the optical channel payload unit OPUk, and the OPUk overhead is added to form the OPUk, and then the OPUk plus the optical channel data unit ODUk channel overhead forms the ODUk.

[0044] S102: Determine the time slot granularity used in the payload area of ​​the optical transport network interface frame carrying the opti...

Embodiment 2

[0064] In order to make those skilled in the art more clearly understand the advantages and details of the customer service data transmission method in the embodiment of the present invention, as Figure 5 Shown is a schematic diagram of the mobile bearer scenario provided by this embodiment. On the basis of Embodiment 1, this embodiment continues to introduce the method for transmitting customer service data:

[0065] In this embodiment, there are many types of client services, such as Ethernet services of rate levels such as GE, 10GE, and 25GE, common public radio interface services (CPRI, Common Public Radio Interface, and synchronous transmission module 64-level services (STM-64 , Synchronous Transport Module level 64), etc., and, in order to realize the transmission of different types of customer services, there are many mapping methods from customer services to ODU, such as ODUflex (IMP), ODUflex (GFP), etc., such as Figure 6 Shown is the flowchart of the OTN interface ...

Embodiment 3

[0109] Please refer to Figure 10 , Figure 10 A schematic structural diagram of a customer service data transmission device provided in this embodiment, including:

[0110] The first mapping module 1001 is configured to map the accessed customer service data to an optical channel data unit.

[0111] In order to realize the transmission of customer service data, the customer service data must first be mapped to the optical channel payload unit OPUk through the first mapping module 1001, and the overhead of the OPUk is added to form the OPUk, and then the OPUk frame is added to the optical channel data unit ODUk The channel overhead constitutes ODUk.

[0112]The time slot granularity determination module 1002 is used to determine the time slot granularity used in the payload area of ​​the optical transport network interface frame carrying the optical channel data unit; the optical transport network interface frame is constructed based on a fixed-format PCS code block, and the...

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Abstract

The embodiment of the invention provides a client service data transmission method and device, optical transport network equipment and a storage medium. The method comprises mapping the accessed client service data to an optical channel data unit through mapping processing; determining time slot granularity used by a payload area of an optical transport network interface frame carrying the opticalchannel data unit; wherein the optical transport network interface frame is constructed based on a PCS coding block in a fixed format, and the payload area can support a plurality of different time slot granularities; determining the number of time slots required to be divided in the payload area according to the time slot granularity and the bandwidth of the payload area; and mapping the opticalchannel data unit into the payload area of the optical transport network interface frame, and transmitting the optical transport network interface frame out. Therefore, when the OTN interface frame bears different types of client service data, the division of internal time slots is more flexible, the decoupling with FEC is realized, the utilization efficiency of a transmission channel is improved, and the adaptive capacity to different client service data is enhanced.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for transmitting customer service data, optical transmission network equipment and storage media. Background technique [0002] The Optical Transport Network (OTN, Optical Transport Network) standard is formulated by the International Telecommunication Union (ITU-T, International Telecommunication Union-Telecommunication Standardization Sector), and is an important standard for optical transmission equipment. Now almost all long-distance transmission networks are based on optical transmission Network standard equipment composition. [0003] In order to realize the transmission of customer service data, the current OTN standard defines various types of OTN interfaces, including the Optical Channel Transport Unit (OTUk, Optical Channel Transport Unit-k, k=1, 2, 3, 4), flexible interconnection interface FlexO etc. based on bit-based 128*5140 structure, but these interf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L1/00
CPCH04Q11/0062H04L1/0041H04Q2011/0086H04Q11/00H04L1/00H04J3/16
Inventor 张源斌苑岩
Owner ZTE CORP
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