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A business data transmission method and device

A technology of business data and transmission method, which is applied in the field of communication, and can solve problems such as low reliability of business transmission and high buffering cost at the receiving end

Active Publication Date: 2018-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a service data transmission method and device, which are used to solve the problems of low reliability of service transmission and high buffering cost at the receiving end when multiple channels of service data with relative delay requirements are transmitted in OTN

Method used

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  • A business data transmission method and device
  • A business data transmission method and device
  • A business data transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Such as figure 1 As shown, it is a flow chart of the business data transmission method provided by Embodiment 1 of the present invention, including the following steps:

[0121] S101: Write each path of service data received into the cache space corresponding to the path of service data.

[0122] Here, the service data is sent from the generating end to the sending end of the optical transport network OTN. At the sending end, write each line of business data into its corresponding small cache, and after all the lines of business data with relative delay requirements arrive at the sending end, perform overall scheduling of each line of business data based on S102-S103.

[0123] S102: Take out the service data from the cache space corresponding to each channel of business data with relative delay requirements and merge them to obtain the merged service data of one channel; any two channels of business data in the channels of business data with relative delay requirements...

Embodiment 2

[0154] The second embodiment further introduces the service data transmission method of the embodiment of the present invention from the perspective of the receiving end of the OTN. Where the specific implementation is repeated with the first embodiment above, details are not repeated here.

[0155] Such as image 3 As shown, it is a flow chart of the service data transmission method provided by Embodiment 2 of the present invention, including the following steps:

[0156] S301: Receive the combined service data of one route.

[0157] S302: Split the received combined service data of one channel to obtain the divided service data of each channel.

[0158] Optionally, the received merged business data of one road is split to obtain the split business data of each road, including:

[0159] Byte-splitting the received service data of one channel after byte interleaving and merging, to obtain the service data of each channel after splitting.

[0160] S303: Send the split busin...

Embodiment 3

[0166] Such as Figure 4 As shown, it is a flow chart of the service data transmission method provided by Embodiment 3 of the present invention, Figure 5 It is a schematic diagram of the corresponding transmission, including the following steps:

[0167] S401: The sending end of the OTN writes each path of service data received into a buffer space corresponding to the path of service data.

[0168] S402: The sending end determines and schedules the respective channels of service data with relative delay requirements according to the size of the data in the cache space corresponding to the service data of other channels except the lossy service network data. Each channel of business data in the business data is a common scheduling rate; according to the determined scheduling rate, the service data is taken out from the cache space corresponding to each channel of business data, and merged by byte interleaving to obtain the merged The next road business data.

[0169] Such a...

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Abstract

The present invention relates to the field of communication technology, in particular to a service data transmission method and device, which are used to solve the problem of low service transmission reliability and high buffering cost at the receiving end when transmitting multiple service data with relative delay requirements in OTN The problem. In the embodiment of the present invention, first write the received service data of each channel into the buffer space corresponding to the service data, and then take out the service data from the buffer space corresponding to each channel of service data with relative delay requirements and combine them to obtain Combined one-way business data, and send the combined one-way business data. After adopting the embodiment of the present invention, it is possible to bind the service data with relative delay requirements of each channel into one channel of service data for transmission, so that there is no need to add a large-capacity cache at the receiving end to absorb the relative delay between each channel of service data, saving The buffer cost of the receiving end is reduced, and the transmission reliability is improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a service data transmission method and device. Background technique [0002] Service data can be transmitted through an optical transport network (Optical Transport Network, OTN). During transmission, the service data is mapped to the Optical channel Payload Unit (OPUk), and after the service data is added to the Optical channel Data Unit (Optical channel Data Unit, ODU) overhead, it becomes low-order optical channel data Unit ODUk; multiple low-order ODUk can be multiplexed to a higher-rate OPUk to become a high-order OPUk, and the high-order OPUk will become a high-order ODUk after adding ODU overhead. [0003] In general applications, one channel of service data is mapped to one channel of low-order ODUk for transmission, and the receiving end recovers the service data after analyzing the data. When transmitting interrelated multi-channel business data (the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04Q11/00
Inventor 龚兆明付纳科欧斯思
Owner HUAWEI TECH CO LTD
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