System and method for bandwidth allocation in the remote device of the passive optical network

A passive optical network and remote device technology, applied in the field of optical communication network, can solve the problems of complex implementation and low support efficiency, and achieve the effect of eliminating mutual influence, ensuring bandwidth and delay requirements, and ensuring service quality) performance

Inactive Publication Date: 2007-09-12
SHANGHAI JIAO TONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The disadvantages of the method for bandwidth allocation in the PON of the above prior art are: similar to the above-mentioned solution using ATM, the support efficiency for IP is low, and the implementation is more complicated

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  • System and method for bandwidth allocation in the remote device of the passive optical network
  • System and method for bandwidth allocation in the remote device of the passive optical network
  • System and method for bandwidth allocation in the remote device of the passive optical network

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Embodiment Construction

[0056] The present invention provides a system and method for bandwidth allocation in the remote equipment of the PON. The core of the present invention is: the OLT performs admission control on the service flow applied to the ONU of the PON, and controls the received service flow in the ONU. Sorting, shaping, and scheduling operations.

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings. The remote equipment of the PON of the present invention includes ONU and ONT. Taking ONU as an example, the structural diagram of the embodiment of the system of the present invention is shown in Figure 2, including the integrated OLT Internal OLT access allows control module and ONU, the present invention adopts integrated service model in ONU, wherein comprises following unit in ONU:

[0058] Classifier: It is mainly responsible for viewing and analyzing the group header of the input business flow according to the classification ru...

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Abstract

The invention provides a system and method for making bandwidth allocation in remote equipment in passive optical network (PON). And the system mainly comprises: OLT (optical line terminal) for making receiving control on the service stream applied by remote equipment in the PON and configuring the service stream classifying, shaping and scheduling parameters in the remote equipment by signaling control; remote equipment for classifying, shaping and scheduling the received service stream according to the OLT-configured parameters and allocating corresponding bandwidth to the received service stream and outputting in the scheduling sequence. And it can assure bandwidth and delay demand of single service stream in remote equipment in PON and eliminates mutual influence between the service streams of packets in the same or different service grades.

Description

technical field [0001] The invention relates to the field of optical communication networks, in particular to a system and method for bandwidth allocation in remote equipment of PON (passive optical network). Background technique [0002] Existing access network technologies are mainly based on copper wires, such as CM (cable modem, cable modem) or ADSL (Asymmetric Digital Subscriber Line), whose rate cannot be further improved. With the growth of user multimedia and real-time services in the future, fiber-to-the-home will solve this bandwidth bottleneck. PON is a technology that uses optical fiber to achieve broadband access for users. PON is the most important implementation of fiber-to-the-home. The general structural diagram of PON is shown in Fig. 1 . [0003] At present, PON has ITU-T (International Telecommunication Union - Telecommunications Standards Sector) recommended G.983 APON (Asynchronous Transfer Mode Passive Optical Network), EPON based on IEEE (Institute o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L12/54
CPCH04L47/245H04L47/2441H04Q2011/0064H04L47/10H04Q11/0067H04L12/5693H04L47/564H04L47/22H04Q2011/0088H04L47/60H04L47/215H04L47/50
Inventor 郭勇范戈任颖惠嫣娇俞辉
Owner SHANGHAI JIAO TONG UNIV
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