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Service 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: 2015-06-24
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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  • Service data transmission method and device

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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 following business data.

[0169] Such a...

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Abstract

The invention relates to the field of communication technologies, in particular to a service data transmission method and device. The service data transmission method and device are used for solving the problems that service transmission reliability is low and the caching cost of a receiving end is high when multiple paths of service data having relative delay demands are transmitted in an OTN. According to the method, firstly, each path of received service data is written into a cache space corresponding to the path of service data; next, service data are taken out from cache spaces corresponding to all paths of service data having the relative delay demands and are combined; finally, a path of service data after combination is obtained and sent. By the adoption of the service data transmission method and device, the service data having the relative relay demands can be bound into one path of service data to be sent, therefore, relative delay among various paths of service data can be absorbed without increasing a large-capacity cache at the receiving end, the caching cost of the receiving cost is saved, 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 Applications(China)
IPC IPC(8): H04L12/861H04Q11/00
Inventor 龚兆明付纳科欧斯思
Owner HUAWEI TECH CO LTD