System and method for extending FTTH network by master-slave ONT

Abstract

The present invention discloses a system and method for extending FTTH network by master-slave ONT, including OLT, master ONT and multiple slave ONTs, and also includes a PON system of multiple slave ONTs virtualized from the master ONT, the PON system Instead of the slave ONT realizing the interaction with the OLT and the data service forwarding of the OLT, the OLT realizes the extension of the network distance through the master ONT and the PON system corresponding to the slave ONT virtualized by the master ONT. The present invention adopts an extended FTTH network of a terminal network The method is to use the FTTH network technology to break the limitation bottleneck caused by optical loss in the edge network with relatively low cost and insufficient optical power, and expand the access range of the edge network.

Description

technical field [0001] The invention relates to the field of ONTs, in particular to a system and method for expanding FTTH networks with master-slave ONTs. Background technique [0002] my country's current optical access network FTTX mainly serves urban communities, small towns, and places with relatively concentrated population and dense users; but it has not yet been popularized in vast rural areas. The increase of the increase requires that the high-speed information network can cover most of the farmers; [0003] Due to the vast land and sparse population in rural areas, the distance between the lines is long, and the user points are relatively scattered. Even for FTTH optical fiber access, due to the limitation of the limited optical path loss budget (rural users are not concentrated, retail customers, only multi-split cascading can be used) , and the cascading type is more serious, the ODN loss is large, and the optical path loss is also relatively large, resulting in...

AI Technical Summary

Problems solved by technology

[0003] Due to the vast land and sparse population in rural areas, the distance between the lines is long, and the user points are relatively scattered. Even for FTTH optical fiber access, due to the limitation of the limited optical path loss budget (rural users are not concentrated, retail customers, only multi-split cascading can be used) , and the cascading type is more serious, the ODN loss is large, and the optical path loss is also relatively large, resulting in insufficient optical power, resulting in the inability to deploy FTTH), resulting in many remote users being unable to be covered;

[0004] In order to cover this part of the users, the current mainstream and feasible solution is: buy a compact OLT, move or sink the OLT to the user side; reduce the bottleneck caused by the intermediate optical path loss, so that the effect can be achieved; The conditions are very poor, there is no centralized computer room, machine room standard, power supply is troublesome, remote maintenance is inconvenient, engineering and operation and maintenance costs are high, and resources are a bit wasted (the compact OLT can support a minimum of several hundred users, and for several users, investment The investment of hundreds of users), the investment income is too small, so operators are often reluctant to adopt this method

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