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A service transmission method and device, optical transport network equipment, and storage medium

A technology for business transmission and business transmission, which is applied in the direction of electrical components, time division multiplexing systems, multiplexing communications, etc., to achieve the effects of reducing development costs, high-speed processing efficiency, and convenient transcoding processing

Active Publication Date: 2022-03-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A service transmission method and device, an optical transport network device, and a storage medium provided by the embodiments of the present invention mainly solve the technical problems of: the implementation of the current ONT transmission service is too complicated, and the technical problems of poor power consumption and efficiency

Method used

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  • A service transmission method and device, optical transport network equipment, and storage medium
  • A service transmission method and device, optical transport network equipment, and storage medium
  • A service transmission method and device, optical transport network equipment, and storage medium

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Embodiment 1

[0033] In the related art, for the signal transmission of the optical transport network, it has a standard signal format, including optical channel transmission units OTUk (k=1, 2, 3, 4), FlexO and new optical transport network signals defined in the future. Optical transport network signals are used to carry various non-OTN signals or multiple low-speed ODUi (i=0, 1, 2, 2e, 3, 4, flex) signals, and the ODUi rate is lower than the ODUk rate, and the low-speed ODUi (i The <k) signal represents the ODUi signal with a lower rate than the ODUk signal; wherein the non-OTN signal refers to various other signals other than the transmission network signal, such as SDH signal, Ethernet signal, Fibre channel signal, various Packet signals, etc.

[0034] The optical transport network signal includes two parts, the overhead and the payload. Taking the optical conversion unit OTUk signal as an example, the constituent parts of the optical transport network signal are further described. The...

Embodiment 2

[0073] The following describes the service transmission method provided by the embodiment of the present invention in detail with reference to specific service types. Refer to figure 2 and 11 shown, Figure 11 This is a schematic diagram of the 5G fronthaul scenario. The interface between the 5G wireless device and the OTN device is an Ethernet-based eCPRI interface. Each base station has 3 eCPRI interfaces, and the bandwidth of each eCPRI interface is 25GE. The following describes the 25GE eCPRI to the new ODUk (ie The specific steps for mapping the above ODUk) are as follows:

[0074] S201: The OTN device obtains the 25GE Ethernet data stream from the interface with the wireless device, frames the 25GE Ethernet data stream, removes the FEC, removes the CWM, etc., and restores it to a data stream based on 66b blocks.

[0075] S202: Perform speed regulation processing on the data flow based on the 66b block by deleting the inter-packet interval IPG or part of the control bl...

Embodiment 3

[0111] This embodiment provides a service transmission apparatus, which can be applied to various optical transport network equipment, see image 3 As shown, the apparatus includes: a mapping module 301 and a sending module 302, wherein:

[0112] The mapping module 301 is configured to map the converted service to be transmitted into an optical channel data unit.

[0113] The service to be transmitted refers to the service based on the data stream format of the PCS coding block, that is to say, when the initial format of the service is not the PCS coding block, it is necessary to obtain the data stream of the PCS coding block after conversion. When the format is the PCS coding block, the service to be transmitted is the original service. The PCS coding block includes at least one of 8b / 10b and 64b / 66b. In practical applications, the PCS coding block may also be other combinations. , not limited to the above-mentioned 8b / 10b, 64b / 66b, that is to say, the coding blocks that are...

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Abstract

Embodiments of the present invention provide a service transmission method and device, an optical transport network device, and a storage medium. By mapping the service to be transmitted into an optical channel data unit, the optical channel data unit includes payloads of M PCS coded blocks and N The overhead of a PCS encoding block, and finally the optical channel data unit will be sent out through the transmission interface, that is, the optical channel data unit obtained after mapping is the payload and overhead. Specifically, it is mapped through the proportional relationship of M / N, by such The mapping method obtains a new optical channel data unit, and this structure is designed according to the transmission requirements of customers' business needs. Based on this structure, the hardware implementation in the design of optical transport network equipment is simpler and more convenient. Perform transcoding processing of various types of services, so as to achieve the processing efficiency and transmission efficiency of high-speed compressed services, and at the same time reduce the transmission power consumption of equipment and reduce the development cost of equipment.

Description

technical field [0001] The embodiments of the present invention relate to, but are not limited to, the field of communication technologies, and specifically relate to, but are not limited to, a service transmission method and apparatus, optical transport network equipment, and storage medium. Background technique [0002] The Optical Transport Network (OTN, Optical Transport Network) standard is formulated by the International Telecommunication Union (ITU-T) and is an important standard for optical transmission equipment. Now almost all long-distance transmission networks are composed of equipment based on the optical transport network standard. [0003] When the Ethernet service is transmitted through OTN, in the process of its transmission, the required mapping level is that the Ethernet service is first mapped to the low-order optical channel data unit ODUk, and the low-order optical channel data unit ODUk is mapped to the high-order optical channel data unit. ODUk, and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/16
CPCH04J3/1652H04J3/1664H04J3/16
Inventor 张源斌苑岩
Owner ZTE CORP