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Programmable dynamic bandwidth distribution method and device

A technology of dynamic bandwidth allocation and programming modules, applied in the field of optical communication, can solve the problems of waste of resources, affecting the normal use of users, loss, etc., to achieve the effect of guaranteed services

Inactive Publication Date: 2012-04-25
EAST CHINA JIAOTONG UNIVERSITY
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  • Description
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Problems solved by technology

As a result, if the existing algorithm and allocation logic are adjusted, devices must be replaced or the network topology must be redeployed, which will not only cause a great waste of resources, reduce the profit of network providers, but also affect the normal use of users. cause unnecessary loss

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  • Programmable dynamic bandwidth distribution method and device
  • Programmable dynamic bandwidth distribution method and device
  • Programmable dynamic bandwidth distribution method and device

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with concrete figure:

[0020] figure 1 , 2The structures of ONU and OLT are respectively programmable dynamic bandwidth allocation algorithm. The core is ARM9 CPU 5. This article takes high-performance ARM9 CUP as an example. This performance makes it a real development system environment. The programmable module 4 is used to store the bandwidth allocation algorithm in the current PON system, and the storage and peripheral device 2 is used to store the current classic allocation algorithm. When the algorithm in the programmable module 4 is not suitable for the current communication, the ARM9 CPU 5 first searches whether there is a suitable algorithm in the storage and peripheral equipment 2, if there is, then transfers the programmable module 4, and continues the communication; otherwise, Through the serial port chip 3 of the OLT or the storage and peripheral equipment 2, load the DBA algorithm suit...

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Abstract

The invention discloses a programmable dynamic bandwidth distribution method and a device, which has the advantages of the prior art; a programming software at an OLT end can freely configure the performance of an access network instantly by re-defining parameters, and leads programming software to be a really open system environment by a high-performance ARM-series CPU embedded in an ONU / OLT. According to the parameters of the bandwidth of the service, the network time delay, user priority, and the like, a PON system is optimized by aiming at special requirements. Simultaneously, the device has programmability and strong flexibility, the bandwidth distribution arithmetic can be adjusted without replacing the network device, the network user priority can be re-classified and the intercommunication between different systems and non-compatible equipment are realized.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and relates to PON (passive optical network) communication, and more specifically, the invention relates to a programmable dynamic bandwidth allocation device and method for a passive optical network. Background technique [0002] EPON (Ethernet Passive Optical Network) adopts the extended Ethernet data link layer protocol on the basis of the passive optical network architecture, which has the advantages of simple protocol, low cost, and strong service capability. Since the EPON concept was put forward, it has received great attention from the industry. EFMA (First Kilometer Ethernet Alliance) of IEEE (Institute of Electrical and Electronics Engineers) released the technical specification IEEE 802.3ah of EPON in June 2004, which has been widely supported by the industry. Related chips and equipment have been launched, and there are certain Applications. [0003] From the experienc...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00
Inventor 殷爱菡张培洲
Owner EAST CHINA JIAOTONG UNIVERSITY
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