Bandwidth allocation method for passive optical network based on ATM

A bandwidth allocation method and passive optical network technology, applied in the field of optical fiber communication, can solve problems such as bandwidth cannot be reconfigured, achieve flexible bandwidth allocation, simplify programming work, and improve performance

Inactive Publication Date: 2004-01-21
WUHAN POST & TELECOMM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2) The bandwidth of each ONU cannot be reconfigured according to actual needs

Method used

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  • Bandwidth allocation method for passive optical network based on ATM
  • Bandwidth allocation method for passive optical network based on ATM
  • Bandwidth allocation method for passive optical network based on ATM

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Experimental program
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Embodiment Construction

[0016] The hardware part of the present invention includes a microcomputer interface circuit 201, an authorization readout enable generator 205, a flag register 202, a selection circuit 206, a first authorization memory 203 and a second authorization memory 207, an authorization readout enable generator 205, a multiplexer circuit 204 . The network manager writes the authorization information to the standby authorization memory through the microcomputer interface circuit 201. The first authorization memory 203 and the second authorization memory 207 have a mutual master / standby relationship. The backup authorization memory is used to receive the authorization information configured by the network management program. The main authorization memory Multiplexing the new authorization information into the downlink PLOAM cell, the setting of the flag register 202 causes the state of the selection circuit 206 to be reversed once, and at the same time causes the master / backup relationsh...

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Abstract

A bandwidth allocating method for passive optical network based on ATM is disclosed. The uplink access bandwidth of ONU is configured by network management interface to manage the bandwidth of PON. It fully uses the characteristics of ATM that its least information unit is a cell. On this basis, the bandwidth is allocated. Its advantages are high flexibility and simplicity, and the support to the transmission structure in ATM mode and more broadband and narrowband services.

Description

technical field [0001] The invention relates to a bandwidth allocation method based on an asynchronous transfer mode passive optical network, which belongs to the field of optical fiber communication, and specifically relates to a bandwidth allocation technology of a passive optical network system (Passive Optica1Network, referred to as PON), and more specifically relates to a A flexible bandwidth allocation method for passive optical networks based on ATM (Asynchronous Transfer Mode) technology. Background technique [0002] There are many methods for PON bandwidth allocation. Passive optical network technology is essentially a technology for sharing media, so an access protocol is required. The simplest method is to adopt a fixed bandwidth method. In this method, each remote optical network unit ONU performs uplink transmission at an agreed time position according to its own number in the PON. This method is relatively simple, but has the following disadvantages: 1) The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/43
Inventor 谭文兵何岩
Owner WUHAN POST & TELECOMM RES INST CO LTD
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