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Uplink bandwidth management method for Giga passive optical network

A passive optical network and bandwidth management technology, which is applied in the field of upstream bandwidth management of gigabit passive optical networks, can solve problems such as impracticability, and achieve the effects of reducing complexity, flexible upstream bandwidth management, and improving management efficiency

Active Publication Date: 2011-07-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, it is more reasonable to provide a user with several single-type service flows, and provide full-service or multi-service capabilities by combining different types of services, but it is not yet possible

Method used

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  • Uplink bandwidth management method for Giga passive optical network
  • Uplink bandwidth management method for Giga passive optical network
  • Uplink bandwidth management method for Giga passive optical network

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Embodiment Construction

[0035] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0036] The core idea of ​​the present invention is: on the basis of the four basic bandwidth types described in the G.983.4 protocol, four basic T-CONT types are reset according to the different supported basic bandwidth types. The CONT types only support their corresponding basic bandwidths; and the concept of the T-CONT family is proposed, wherein each T-CONT family consists of several T-CONTs of the same or different types in an ONU. The T-CONT family becomes a logical bandwidth management unit. Both the T-CONT family and the T-CONTs within the family set user SLA parameters and implement two-level DBA scheduling. And it is stipulated that each T-CONT within a T-CONT family carries a single service flow for a single user, and these single service flows form the comprehensive service flow actually requi...

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Abstract

The invention discloses a GPON uplink bandwidth management method; a group is established basing on a plurality of same or different T-CONTs of an ONU by setting four basic T-CONTs and the T-CONT group becomes the logical bandwidth management unit; the T-CONT group and T-CONTs in the group are all provided with SLA parameters to execute two-stage DBA scheduling; the T-CONT group logically integrates the service flows born by different T-CONTs to represent the capability of GPON of providing multi-services and all-round services for users; moreover, DBA can participate in the scheduling of different data alignments in the ONU, thus being conducive to keeping down the scheduling function of the internal alignments of the ONU and reducing the complexity of the DBA policy.

Description

technical field [0001] The invention relates to a passive optical network (PON) transmission technology in the field of optical communication, in particular to an uplink bandwidth management method of a gigabit passive optical network (GPON, Gigabit-capable Passive Optical Network). Background technique [0002] GPON is a flexible gigabit optical fiber access network proposed by the International Telecommunication Union Telecommunication Standardization Authority (ITU-T). Encapsulated Mode) frames carry multiple services, and support broadband full-service access for commercial and residential user services. GPON is physically a tree topology, one optical line terminal (OLT) corresponds to multiple optical network units (ONUs), and the ONUs are centrally controlled by the OLT. [0003] The downlink data transmission mode of GPON is broadcast mode. All ONUs can receive all downlink data frames on their physical PON ports. ONUs only obtain their own data frames by selection. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/28H04B10/00H04L12/911H04Q11/00
Inventor 严技凯李明生
Owner ZTE CORP
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