Hardware platform system of GPON ONU system designed based on FPGA

A hardware platform and plane technology, applied in multiplexing system selection device, transmission system, electromagnetic wave transmission system, etc., can solve the problems of poor applicability, high cost of GPONONU system, etc., and achieve the effect of cost reduction

Inactive Publication Date: 2009-02-11
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the high cost and poor applicability of the existing GPON ONU system based on the FPGA+CPU architecture, the present invention provides a hardware that can effectively reduce the cost of GPON user end equipment and has strong applicability based on the FPGA-designed GPON ONU system platform system

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  • Hardware platform system of GPON ONU system designed based on FPGA
  • Hardware platform system of GPON ONU system designed based on FPGA
  • Hardware platform system of GPON ONU system designed based on FPGA

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] refer to Figure 1 to Figure 8 , a hardware platform system of a GPON ONU system designed based on FPGA, including a physical media related layer, a GTC layer, a management control plane interface, a user plane interface and a power management module.

[0025] The physical medium-related layer completes signal reception, wavelength division multiplexing, optical / electrical and electrical / optical conversion, provides PON interface and connects to GTC layer interface, including GPON ONU transceiver and ITU-T G.984.2B+ standard. SERDES chip, wherein the ONU transceiver provides a PON interface, a continuous downlink serial data differential interface, a burst uplink transmission differential interface, the PON interface is connected to the optical distribution network end optical fiber, and the continuous downlink serial data differential interface is connected to ...

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Abstract

A hardware platform system of a GPON ONU system based on FPGA design comprises a physical medium correlational layer, a GTC layer, a management control plane interface, a user plane interface and a power management module, wherein, the physical medium correlational layer comprises a GPON ONU transceiver and a SERDES chip which meet the ITU-T G.984.2B+ standard; the GTC layer comprises an FPGA, an SDRAM, an AS set chip, a first connector and a second connector; the management control plane interface comprises a third connector; the user plane interface circuit comprises an Ethernet control ship and an RJ45 with a network isolator; and the power management circuit comprises a 12V converting 3.3V first power chip, a 3.3V converting 2.5V second power chip and a 3.3V converting 1.2V third power chip. The method can effectively reduce the cost of GPON user end equipment, and has high applicability.

Description

technical field [0001] The invention relates to broadband optical access network technology, in particular to a hardware platform system of an optical network unit (ONU) in a gigabit passive optical network (GPON). Background technique [0002] With the emergence of high-bandwidth services such as video-on-demand, online games, and interactive TV (IPTV), users' demand for access bandwidth will further increase. The existing broadband access methods mainly based on ADSL and CableModem have been difficult to satisfy users. Requirements for high bandwidth, two-way transmission capability, and security. Faced with this dilemma, broadband service operators in various countries have turned their attention to FTTH (fiber-to-the-home). FTTH (fiber-to-the-home) is an ideal mode of broadband access. It refers to the use of optical fiber in the final access network stage from the metropolitan area network to the community and between users to realize voice, data, radio and television ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04B10/00H04L29/06
Inventor 孟利民彭宏曾江波
Owner ZHEJIANG UNIV OF TECH
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