Passive optical network architecture and method for realizing data transmission using the same and optical network device

A passive optical network and data technology, applied in the field of passive optical networks

Active Publication Date: 2017-10-27
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

With the development of networks and services, ONUs need to support greater throughput and bandwidth. The number of wavelengths supported by ONUs has gradually increased from one to multiple, and the wavelengths supported by ONUs are also flexible. ODN supports different wavelength numbers and ONUs of different wavelengths and how to make full use of the bandwidth. At present, there is no relevant technical solution.

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  • Passive optical network architecture and method for realizing data transmission using the same and optical network device
  • Passive optical network architecture and method for realizing data transmission using the same and optical network device
  • Passive optical network architecture and method for realizing data transmission using the same and optical network device

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Embodiment Construction

[0106] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0107] IEEE Next Generation Ethernet Passive Optical Network (NGEPON) and ITU-T NG-PON2 are being standardized, OLT supports multiple channels, ONU supports one or more channels, the number of channels supported by different ONUs and the supported Channels can be different. image 3 It is a schematic diagram of transmission scenarios where OLT supports multi-wavelength ONUs to support different wavelengths and wavelengths in the present invention. For example, when OLT supports channels 0-3: single-channel ONU can support channels 0, 1, 2 or 3, and different single-channel ON...

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Abstract

The invention discloses a passive optical network architecture and a method for realizing data transmission using the same and an optical network device. The passive optical network architecture comprises an optical line terminal OLT supporting multiple channels and one or more than one optical network units ONUs which support one or more than one channels and are arranged under a same one optical distribution network ODN; the OLT / ONU is used for obtaining a quantity of channels that transmission data supports / or a corresponding channel and a sendable state of the supported channel, and distributing data to be transmitted on one or more than one supported channel for transmission, wherein the data is given a priority to be transmitted on a channel having an earliest transmission starting time and transmission finish times on the channel for data transmission are close or finishes at a sendable finish time; the ONU / OLT is used for receiving data on a channel supported by the ONU / OLT and performing re-assembling on the data according to a transmission rule. The passive optical network architecture and method for realizing data transmission using the same and the optical network device realize control of the OLT supporting multiple wavelengths on the ONU supporting various wavelength numbers and wavelengths, realize flexible channel binding and fully utilize broadband.

Description

technical field [0001] The present invention relates to but not limited to passive optical network (PON, Passive Optical Network) technology, especially a passive optical network architecture, a method for realizing data transmission and optical network equipment. Background technique [0002] With the rapid development of broadband services, users' demand for access network bandwidth has increased significantly. Passive Optical Network (PON, Passive Optical Network) is currently an important technical means for user access, such as figure 1 As shown, in the composition architecture of the existing PON system, the office-side optical line terminal (OLT, Optical Line Terminal) is connected to the optical splitter through the trunk fiber, and the optical splitter is connected to multiple user-side optical network units through the branch fiber. (ONU, Optical Network Unit) connection, OLT and ONU communicate through a wavelength pair. [0003] Currently, the OLT can use multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/02
CPCH04J14/0239H04J14/02H04J14/0256H04J14/0282H04Q11/0067H04Q2011/0064H04B10/27H04B10/50H04B10/66
Inventor 张伟良袁立权
Owner ZTE CORP
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