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Service data transmission and apparatus thereof

A technology of service data and transmission method, which is applied in the field of optical transport network, can solve the problems of increasing SDH electrical layer processing, increasing system transmission delay, complex equipment, etc., and achieves the effect of low cost, high bandwidth utilization rate and simple realization

Inactive Publication Date: 2006-03-15
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0027]1. Added SDH electrical layer processing, complex equipment and high cost
OTN service needs to be processed by GE->GFP->SDH->OTN, and OTN needs to be processed by OTN->SDH->GFP->GE. This is relatively important for both add-drop equipment and cross-connect equipment. cumbersome;
[0028]2. Due to the increase of SDH layer processing, the transmission delay of the system is relatively increased

Method used

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  • Service data transmission and apparatus thereof
  • Service data transmission and apparatus thereof
  • Service data transmission and apparatus thereof

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Embodiment Construction

[0100] The service data transmission method and device of the present invention are used to transmit GE services in the OTN, the core of which is to adopt a simple time division multiplexing mechanism, and further utilize the convergence capability of the Generic Framing Procedure (GFP, Generic Framing Procedure) to pass the GE services GFP encapsulation, directly mapped to OTN for transmission, simple implementation, low cost, and full use of OTN bandwidth.

[0101] The service data transmission method of the present invention will be described in detail below.

[0102] refer to Figure 5 , which is a flow chart of the service data transmission method of the present invention. The present invention transmits GE business in OTN and mainly includes the following steps:

[0103] First in step 10, determine the number of GE service data channels to be transmitted;

[0104]Then in step 11, further determine the optical channel payload unit adapted to the total bandwidth of the ...

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Abstract

A service data transmission method for optical network includes such steps as determining the net load unit of optical channel adaptive to the total bandwidth of GE service data according to the number of GE service data channels to be transmitted, dividing the net load domain of said net load unit into the time slots relative to said number of data channels, packing the GE service data into frames, transmitting them over optical network, receiving them by receiver, decomposing to obtain frames, and unpacking the frames to obtain the GE service data. Its transmission device is also disclosed.

Description

technical field [0001] The present invention relates to the field of optical transport network, and more specifically, the present invention relates to a service data transmission method and device for transmitting Gigabit Ethernet (GE, Gigabit Ethernet) services on an optical transport network. Background technique [0002] Generally, an Optical Transport Network (OTN, Optical Transport Network) is defined as an optical network with advanced features, such as optical channel routing, switching, monitoring, and survivability, and can be extended to a maximum bandwidth of each optical channel tens of Gbps) flexibly, scalable, and reliably transport a wide range of client signals. In a full-featured optical transport network, transport network functions will shift from SONET / SDH networks to optical transport networks, and supplement service layer features to meet a wide range of infrastructure and specific service requirements. [0003] refer to figure 1 , which is a schemat...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04Q11/04H04B10/12H04L29/06H04L12/44
Inventor 张洪涛张建梅肖新
Owner HUAWEI TECH CO LTD
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