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Data processing method in optical transport network, and related device and system

A data processing and optical transport network technology, applied in the field of optical communication, can solve the problems of large data processing time delay and complex data processing process, and achieve the effect of reducing data processing time delay, simplifying data processing process, and saving photoelectricity

Active Publication Date: 2012-11-14
HUAWEI TECH CO LTD
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  • Application Information

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Problems solved by technology

[0007] Since the crossover and multiplexing of ODUs are performed through electrical signal processing at the electrical layer, that is to say, to perform crossover of ODUs, it is first necessary to convert optical signals into electrical signals through optical receivers, and then decode them layer by layer. ODU, then perform electrical crossover, then package layer by layer, and then convert it into an optical signal through an optical transmitter. It can be seen that the intermediate node of OTN needs to perform optical-electrical-optical conversion and a large amount of electrical signal processing for the transmitted data. The processing process is complex and the data processing delay is large

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  • Data processing method in optical transport network, and related device and system
  • Data processing method in optical transport network, and related device and system
  • Data processing method in optical transport network, and related device and system

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Embodiment Construction

[0048] Embodiments of the present invention provide a data processing method for an optical transport network, related equipment and a system.

[0049]Optical burst switching or optical burst slot switching is a novel all-optical switching technology with sub-wavelength granularity. Its core idea is to divide a wavelength into many sub-wavelength optical time slots, and encapsulate and map service data into each optical time slot. At the intermediate nodes of the network, optical signals are switched through all-optical methods such as all-optical switching arrays. Simply understood, the all-optical switching array is an "optical switching chip", which corresponds to an "electrical switching chip" that can directly switch optical burst packets. Optical signals are exchanged through an all-optical switching array and other all-optical methods, which saves the optical-electrical-optical conversion of intermediate nodes and a large amount of electrical signal processing. The da...

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Abstract

Provided are a data processing method in an optical transport network, and a related device and system. The data processing method in an optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to the payload area of an optical burst transport unit; photo-electrically converting the optical burst transport unit to form an optical burst optical signal; bearing the optical burst optical signal onto the optical slot of an optical burst channel; and transmitting the optical burst channel onto a line. The technical solutions provided in the present invention can simplify the data processing process effectively and reduce the data processing time delay.

Description

technical field [0001] Embodiments of the present invention relate to the field of optical communications, and in particular, to a data processing method, related equipment, and system for an optical transport network. Background technique [0002] Optical Transport Network (OTN, Optical Transport Network) is based on wavelength division multiplexing technology and organizes the network at the optical layer. It is currently the mainstream transport network technology. Due to the explosive growth of Internet Protocol (IP, Internet Protocol) services and other packet-based data services transmitted on the network, the requirements for transmission capacity are increasing rapidly. Dense Wavelength Division Multiplexing (DWDM, Dense Wavelength Division Multiplexing ) Technology and Optical Amplifier (OA, Optical Amplifier) ​​The maturity and application of technology make the transmission network develop towards the optical transmission network based on optical networking techno...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04J3/16
CPCH04Q11/0066H04J3/1658H04Q11/0067H04J3/16H04Q11/00H04J2203/0085H04Q11/0071H04Q2011/0086
Inventor 邓宁维塞斯马腾石晓钟
Owner HUAWEI TECH CO LTD
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