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Spending processing method for service integration in OTN network

A technology of business reuse and processing method, which is applied in the field of overhead processing of business reuse, can solve the problems of unspecified overhead, no description, and no provision of how to deal with overhead, etc., to achieve strong operability, simple processing overhead, and processing methods simple effect

Inactive Publication Date: 2006-05-10
HUAWEI TECH CO LTD
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Problems solved by technology

[0008] 1. The above patent simply describes using the OPU (OpticalChannel Payload Unit, Optical Channel Payload Unit) overhead area in the OTN frame structure to bear the overhead related to customer mapping processing, and does not specify how to process the overhead. Expenses do not provide realistic and effective means
[0009] 2. The above patents do not describe how to map low-speed CBR signals, low-speed ODU (Optical Channel Data Unit, optical channel data unit) services and mixed services of low-speed data signals to OTN for transmission
[0010] 3. For the OTN standard and the above patents, they are limited to the overhead processing of low-speed CBR signal and low-speed ODU signal mapping and multiplexing that have a fixed relationship with the bandwidth of the OPU payload area, and lack of low-speed service signal mapping and multiplexing for any bandwidth. overhead processing

Method used

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  • Spending processing method for service integration in OTN network
  • Spending processing method for service integration in OTN network
  • Spending processing method for service integration in OTN network

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Embodiment Construction

[0043] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0044] The OTN proposal stipulates three frame structures with different rates, which are OTU1 / ODU1 / OPU1 at the 2.5G rate level, OTU2 / ODU2 / OPU2 at the 10G rate level, and OTU3 / ODU3 / OPU3 at the 40G rate level. For OTN frames of each rate, the size of the frame structure is exactly the same, and the transmission rate is different. For example, for OTU1 / ODU1 / OPU1 frames, the frame period is about 48us, while the frame period of OTU2 / ODU2 / OPU2 is about 12us, OTU3 / The frame period of ODU3 / OPU3 is about 3us.

[0045] As shown in Figure 1, the G.709 recommendation stipulates that the structure of the OTN frame is a block byte structure with 4 rows and 4080 columns, of which the first 16 columns are the OTN overhead area, and the 17th to 3824th columns are the payload area. Between 3825 and 4080 columns is the forward error correction FEC (Forward Error Correcti...

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Abstract

This invention relates to digital information transmission OTN network business compound expenditure process method, which comprises the following steps: a, dividing the OTN frame OPU net load area in low speed business signal mapping and compound OTN; b, indicating OPU net load area division, dispatching and relative customer business type and the OPU net load area is divided into several same time gaps and adopting alliance sequence MFAS relative net load structure to indicate FSI each time gap to relative customer terminal and relative customer business type information; dividing the OPU customer terminal and relative customer business type and using the OPU expenditure to express relative customer business sub-block position information.

Description

technical field [0001] The invention relates to the transmission of digital information, in particular to an overhead processing method for service multiplexing in an OTN network. Background technique [0002] With the continuous growth of voice services and data services, the capacity of the transmission network is continuously increased, and the transmission bandwidth is also continuously improved. Transmission technology has mainly experienced several development stages such as PDH, SDH, and WDM. PDH technology mainly uses asynchronous multiplexing to increase transmission rate, SDH technology mainly improves transmission rate through synchronous multiplexing, and WDM technology mainly uses wavelength multiplexing. way to increase line transmission bandwidth. [0003] At present, the network structure mainly adopts the network structure in which the data is processed by SDH and then mapped to WDM. For data services, it needs to be mapped and multiplexed by SDH before bei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J14/00
Inventor 张建梅
Owner HUAWEI TECH CO LTD
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