Wavelength management in multiple-avelength passive optical networks

A passive optical network and wavelength management technology, which is applied in the field of wavelength management and can solve the problems of increasing the bandwidth capacity of PON systems.

Inactive Publication Date: 2013-12-11
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the growth of business requirements, the bandwidth capability of the PON system also needs to be increased

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  • Wavelength management in multiple-avelength passive optical networks
  • Wavelength management in multiple-avelength passive optical networks
  • Wavelength management in multiple-avelength passive optical networks

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[0028] It should be understood from the outset that although an illustrative implementation of one or more examples are provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. This invention should in no way be limited to the illustrative implementations, drawings, and techniques described below, including the exemplary designs and implementations illustrated and described herein, but may be included within the scope of the appended claims and their equivalents Modified in full scope.

[0029] Different PON systems that can support bit rates higher than about 10 Gbps have been proposed for next generation PON (NGPON) systems (also known as NGPON Phase 2 or NGPON2). Some of these systems may be multi-wavelength PON systems that transmit and / or receive data for multiple ONUs over multiple wavelengths (or wavelength channels). The multi-wavelength systems may include wavelength-stacked GPON ...

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Abstract

The invention discloses a system for supporting wavelength management in a passive optical network (PON). The system comprises an optical line terminal (OLT) configured for wavelength assignment for optical network unit (ONU) communications based on a wavelength tunability capability; and an ONU coupled to the OLT and configured to send the wavelength tunability capability to the OLT, wherein the wavelength assignment and the wavelength tunability capability are sent in media access control (MAC) messages. Also disclosed is an apparatus of an OLT for supporting wavelength management. The apparatus comprises one or more component configured to couple to an ONU and exchange a wavelength assignment for transmission with the ONU based on a wavelength tunability of the ONU, wherein the wavelength indication and the wavelength tunability are exchanged via MAC layer frames.

Description

[0001] Cross-references to related applications [0002] This application claims priority to a prior application of US Provisional Patent Application No. 61 / 473,442, entitled "Wavelength Management in Multi-Wavelength Passive Optical Networks," filed April 8, 2011 by Yuanqiu Luo et al., and Claims priority to U.S. Patent Application No. 13 / 440,842 for the invention entitled "Wavelength Management in Multi-Wavelength Passive Optical Networks" filed by Yuanqiu Luo et al. The full text of this reference is incorporated into this text. technical field [0003] The present invention relates to communication networks, and more particularly to wavelength management in multi-wavelength passive optical networks. Background technique [0004] A passive optical network (PON) is a system that provides "last mile" network access. PON is a point-to-multipoint network consisting of an optical line terminal (OLT) located in the central office, an optical distribution network (ODN), and mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02
CPCH04J14/0246H04J14/025H04J14/0257H04J14/0258H04J14/0267H04J14/0273H04J14/0282H04Q2213/1301H04B10/00H04J14/0278
Inventor 罗远秋艾芬伯格·弗兰克·J
Owner HUAWEI TECH CO LTD
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