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ONU, OLT and information transmission method

An optical network unit and passive optical network technology, applied in the field of network communication, can solve the problem of high cost, achieve the effect of reducing cost and avoiding queue scheduling memory

Active Publication Date: 2014-12-24
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an optical network unit ONU, an optical line terminal OLT and an information transmission method to solve the problems of high cost in the construction and information transmission process of the existing optical fiber access network

Method used

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  • ONU, OLT and information transmission method
  • ONU, OLT and information transmission method
  • ONU, OLT and information transmission method

Examples

Experimental program
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Effect test

no. 2 example

[0040] Please refer to image 3 , which shows a main structural block diagram of an optical network unit ONU provided by an embodiment of the present invention. The optical network unit ONU includes: a first user side interface unit 301 and a passive optical network PON interface unit 303 .

[0041] Specifically, the PON interface unit 303 is configured to receive the first PON physical layer frame from the optical line terminal OLT, and remove the first PON physical layer frame header and the first PON media access control MAC frame in the first PON physical layer frame Frame header, get the first frame.

[0042] Wherein, the first PON physical layer frame header may be a Gigabit passive optical network GPON physical layer frame header and the first PON MAC frame header may be a GPON MAC frame header;

[0043] or,

[0044] The first PON physical layer frame header may be a next-generation GPON physical layer frame header and the first PONMAC frame header may be a next-gene...

no. 3 example

[0055] Please refer to Figure 4 , which shows a main structural block diagram of an optical network unit ONU provided by another embodiment of the present invention. its with image 3 The optical network unit ONU shown is similar, and the difference is that it further includes: a forwarding unit 405 .

[0056] The first user-side interface unit 401 and the passive optical network PON interface unit 403 are respectively connected with image 3 The first user-side interface unit 301 and the passive optical network PON interface unit 303 in the embodiment correspond to the same, please refer to the above for details image 3 The corresponding description of the embodiment.

[0057] Preferably, when the first frame is the second PON MAC frame and the second frame is the first frame,

[0058] Then the forwarding unit 405 is specifically used for:

[0059] removing the preamble of the second PON MAC frame to obtain a PON MAC frame without a preamble;

[0060] Query the media ...

no. 4 example

[0097] Please refer to Figure 5 , which shows a method flowchart of an information transmission method provided by an embodiment of the present invention. The information transmission method may include the following steps 501-503:

[0098] Step 501, the PON interface unit receives the first PON physical layer frame from the optical line terminal OLT, removes the first PON physical layer frame header and the first PON media access control MAC frame header in the first PON physical layer frame, and obtains first frame.

[0099] Step 503, the first user-side interface unit encapsulates the first non-PON physical layer frame header for the second frame obtained by the first user-side interface unit, obtains the first non-PON physical layer frame, and converts the first non-PON physical layer frame The frame is sent to the user equipment, wherein the second frame is the first frame or a frame obtained based on the first frame. The first PON physical layer frame header is the g...

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Abstract

The invention discloses an ONU, an OLT and an information transmission method, and belongs to the field of network communication. The ONU comprises a user side interface unit and a PON interface unit. The PON interface unit is used for receiving a first PON physical layer frame from the OLT and removing a first PON physical layer frame header and a first PON MAC frame header in the first PON physical layer frame so as to obtain a first frame. The first user side interface unit is used for packaging a first non-PON physical layer frame header on a second frame obtained by the first user side interface unit so as to obtain a first non-PON physical layer frame and sending the first non-PON physical layer frame to user equipment, wherein the second frame is the first frame or a frame obtained based on the first frame. In the data transmission process, QoS scheduling is not needed, an expensive queue scheduling memorizer is omitted, and therefore cost is reduced.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an optical network unit ONU, an optical line terminal OLT and an information transmission method. Background technique [0002] Please refer to figure 1 , figure 1 A schematic diagram of a main network architecture and a schematic diagram of a protocol stack of an existing optical fiber access network (collectively referred to as FTTx) are shown. The optical fiber access network is composed of Optical Line Termination (OLT), Optical Network Unit / Optical Network Terminal (ONU / ONT), etc. The optical network unit ONU of the optical fiber access network and the optical line terminal OLT are usually connected by optical fiber. Depending on the location of the optical network unit ONU, the optical fiber access network is divided into fiber to the home (Fibre To The Home, FTTH), optical fiber There are several situations such as Fiber to Drop / Distribution Point (FTTDp),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/951H04L47/43
CPCH04Q11/0067H04Q2011/0086
Inventor 郑若滨
Owner XFUSION DIGITAL TECH CO LTD
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