Method, device and system for transmitting business data on optical transmission network

A technology for transporting services and optical transport networks, which is applied in the field of optical communications and can solve problems such as unfavorable development of the optical layer and inability to meet the bandwidth requirements of the service layer.

Inactive Publication Date: 2012-06-20
HUAWEI TECH CO LTD
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Problems solved by technology

In order to adapt to the flexible support of data services, OTN has added ODUflex (Flexible Optical Channel Data Unit, flexible optical channel data unit) to adapt to data services with various bandwidth requirements, but the fixed optical transport network line rate level is not suitable for business The flexible bandwidth requirements of the optical layer are also not conducive to the further development of the optical layer to a higher rate

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  • Method, device and system for transmitting business data on optical transmission network
  • Method, device and system for transmitting business data on optical transmission network
  • Method, device and system for transmitting business data on optical transmission network

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] figure 1 is a schematic diagram of the relevant OTN rate level architecture.

[0023] figure 1 L1 to L4 in , respectively represent fixed service data with different transmission rates from low to high. For example, L1 is the service data of the STM-16 standard, L2 is the service data of the STM-64 standard, L3 is the service data of the STM-256 standard, and L4 is the service data of the 100GE (100G Ethernet) standard. The service data ...

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Abstract

The present invention provides a method, device and system for transmitting business data on optical transmission network, wherein the method comprises: the business data is mapped as a low order and flexible optical channel data unit,a plurality of low order and flexible optical channel data units are multiplexed as the high orderand flexible optical channel data units which are added with FEC expenditure so as to generate the flexible optical channel transmission units,and the flexible optical channel transmission units are divided into multi-channel data channel signals and are modulated to an orthogonal frequency division multiplexing sub carrier to send the orthogonal frequency division multiplexing sub carrier. The technical scheme can provide flexible optical channel transmission units so as to make the network adapt the business data as flexible and changable optical transmission network line rate through the network, and can realize the requirements for transmitting the business data with various rates so as to adapt the optical transmission network to the higher rate.

Description

technical field [0001] The present invention relates to the field of optical communication, and more specifically, to a method, device and system for transmitting service data on an optical transport network. Background technique [0002] OTN (Optical Transport Network, Optical Transport Network), as the core technology of the next-generation transport network, includes the technical specifications of the electrical layer and the optical layer, and has rich OAM (Operation Administration and Maintenance, operation management and maintenance), powerful TCM (Tandem Connection Monitor (serial connection detection) capability and out-of-band FEC (Forward Error Correction, forward error correction) capability can realize flexible scheduling and management of large-capacity services, and have increasingly become mainstream technologies in backbone transport networks. [0003] With the popularization and rapid development of applications such as the Internet and cloud computing, inf...

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Application Information

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IPC IPC(8): H04Q11/00H04L27/26
CPCH04J3/1652H04J14/0273H04L1/0056H04L27/2697
Inventor 董立民吴秋游
Owner HUAWEI TECH CO LTD
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