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A passive optical network compatible device, its realization method and optical line terminal

A passive optical network and channel technology, applied in the field of passive optical network compatible devices and optical line terminals, can solve the problem that OLT cannot be compatible with NGPON2 and XGPON uplink rates at the same time, and achieve the effect of low cost and smooth evolution

Active Publication Date: 2020-07-31
SANECHIPS TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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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, Lower costs and smoother network evolution are issues that operators and equipment manufacturers need to solve

Method used

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  • A passive optical network compatible device, its realization method and optical line terminal
  • A passive optical network compatible device, its realization method and optical line terminal
  • A passive optical network compatible device, its realization method 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

Disclosed is a passive optical network compatible device, which respectively adopts a first mode and a second mode to restore uplink data of an optical network unit (ONU), and respectively performs differential into single-end processing on the restored uplink data to convert same into single-end data. Down-sampling processing is performed on the single-end data restored adopting the second mode and having been subjected to differential into single-end conversion, to convert same into down-sampled single-end data; A first uplink path and a second uplink path adopt different standards to process the single-end data and the down-sampled single-end data, and performs descrambling and forward error correction (FEC) decoding processing after delimitation is successful, and a processed gigabit-capable passive optical network transmission convergence (GTC) frame is sent. The present invention further discloses an implementation method for a passive optical network compatible device, 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 implementation 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 (upl...

Claims

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Application Information

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