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Transmission control method, coaxial line terminal and optical network unit

A coaxial line terminal and optical network unit technology, applied in the field of data transmission, can solve the problems of delay in being forwarded and reduce the overall transmission efficiency of the cascaded CLT system, and achieve the effect of reducing storage design costs and design costs

Inactive Publication Date: 2011-05-04
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the priority of some CLT service packets is low, then the CLT’s uplink service packets may stay in the memory and not be forwarded for a long time, thus reducing the overall transmission efficiency of the cascaded CLT system

Method used

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  • Transmission control method, coaxial line terminal and optical network unit
  • Transmission control method, coaxial line terminal and optical network unit
  • Transmission control method, coaxial line terminal and optical network unit

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Embodiment Construction

[0045] In the present invention, the cascaded CLTs and the ONUs serving as the uplink interface cards of the cascaded CLTs are collectively referred to as: a cascaded CLT system using ONUs as uplink interface cards.

[0046] The core idea of ​​the present invention is: ONU distributes logical links for each CLT connected to it; each CLT sends the information of the service package to be sent to the ONU; The bandwidth can be allocated to determine the receivable service packets of each logical link corresponding to each CLT; each logical link transfers the forwardable service packets of this link from the CLT to the ONU during its data upload stage, and forwards them.

[0047] In practical applications, the ONU can assign a logical link (LL) to all CLTs, or assign a logical link to each CLT, or assign each link in some logical links to more than one CLT. , while assigning each of the remaining logical links to a CLT.

[0048] The present invention will be described in detail b...

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Abstract

The invention discloses a transmission control method, a CLT and an ONU, which are applied to a cascade CLT system taking the ONU as an uplink interface card. The method comprises the following steps: the ONU distributes logical links for each CLT connected with the ONU; each CLT sends the information of a service packet to be sent to the ONU; the ONU determines the receivable service packets of each logical link corresponding to each CLT according to the information of the service packet to be sent which is sent by each CLT and distributable uplink bandwidth of the ONU; and each logical linktransfers the service packet which can be transmitted of the link from the CLT to the ONU during the data uploading stage, and transmits the service packet. The invention reduces the storage design cost of the cascade CLT system.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a transmission control method in a cascaded coaxial line terminal (CLT, CoaxialLine Terminal) system using an optical network unit (ONU, Optical Network Unit) as an uplink interface card, and using the ONU as an The CLT in the cascaded CLT system of the uplink interface card, and the ONU as the uplink interface card of the cascaded CLT system. Background technique [0002] At present, in many cases in the market, an ONU in an Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network) system needs to be used as an uplink interface card of a CLT in an Ethernet Passive Coaxial Network (EPCN, Ethernet Passive Coaxial Network) system. [0003] When multiple CLTs are cascaded to form a cascaded EPCN system, multiple cascaded CLTs use one ONU as an uplink interface card. Fig. 1 has provided the schematic diagram of the existing cascaded CLT system that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04Q11/00H04L12/911
Inventor 于洋
Owner NEW H3C TECH CO LTD