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Passive optical-network compatible device and realization method thereof, and optical line terminal

A technology of passive optical network and channel

Active Publication Date: 2017-06-20
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when two optical network unit (ONU, Optical Network Unit) devices, NGPON2 and XGPON, coexist in the network, the existing OLT cannot be compatible with the uplink rate of NGPON2 and XGPON at the same time; how to adapt to these two ONU devices, compatible with NGPON2 and XGPON, so that Lower cost and smoother network evolution are problems that operators and equipment manufacturers need to solve

Method used

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  • Passive optical-network compatible device and realization method thereof, and optical line terminal
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  • Passive optical-network compatible device and realization method thereof, and optical line terminal

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Embodiment Construction

[0044]In the embodiment of the present invention, the first mode and the second mode are used to recover the uplink data of the ONU, and the recovered uplink data are converted into single-ended data from differential to single-ended, and converted into single-ended data; The single-ended data is down-sampled and converted into down-sampled single-ended data; the first uplink path and the second uplink path use different standards to process the single-ended data and the down-sampled single-ended data respectively, And after the delimitation is successful, descrambling and FEC decoding processing are performed, and the processed GTC frame is sent.

[0045] The present invention will be described in further detail below in conjunction with the examples.

[0046] The passive optical network compatible device provided by the embodiment of the present invention, such as figure 1 shown, including:

[0047] First uplink BCDR unit 11, second uplink BCDR unit 12, first differential ...

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Abstract

The invention discloses a passive optical-network compatible device. A first mode and a second mode are used to recover uplink data of an optical network unit (ONU), difference to single end processing is performed on the recovered uplink data and the uplink data is converted into single end data. Downsampling processing is performed on the single end data which is recovered through using the second mode and is converted via difference to single end conversion and the data is converted into the single end data after downsampling. A first uplink channel and a second uplink channel adopt different standards to process the single end data and the single end data after downsampling. After delimitation is performed successfully, descrambling and forward error correction (FEC) decoding processing are performed and a processed gigabit passive optical network transmission convergence (GTC) frame is sent. The invention also discloses a passive optical-network compatible realization method and an optical line terminal.

Description

technical field [0001] The present invention relates to a passive optical network (Passive Optical Network, PON) system transmission technology, in particular to a passive optical network compatible device and its realization method, and an optical line terminal (Optical Line Terminal, OLT). Background technique [0002] In recent years, with the rapid development of the global access market and the rapid development of full-service operations, the existing PON technical standards have improved in terms of bandwidth requirements, business support capabilities, and performance improvements of access node equipment and supporting equipment. Facing new upgrade needs. At present, N Gigabit-Capable Passive Optical Network (NGPON, N Gigabit-Capable Passive Optical Network) is already in the commercial stage. NGPON is divided into two standards: Passive Optical Network (XGPON, X Gigabit-Capable Passive Optical Network) and NGPON2; among them, XGPON It is an asymmetric mode (uplink...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/27
CPCH04B10/27H04Q11/0067H04Q11/00
Inventor 龙光平
Owner SANECHIPS TECH CO LTD
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