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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 communication, etc., to achieve the effects of reducing development costs, simple hardware implementation, and reducing transmission power consumption

Active Publication Date: 2020-02-21
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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  • Service transmission method and device, optical transport network equipment and storage medium
  • Service transmission method and device, optical transport network equipment and storage medium
  • Service transmission method and device, optical transport network equipment and storage medium

Examples

Experimental program
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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 transport unit 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 <k) The signal represents the ODUi signal with a lower rate than the ODUk signal; the non-OTN signal refers to various other signals except the transmission network signal, such as SDH signal, Ethernet signal, Fiber channel signal, various Packet signals, etc.

[0034] An OTN signal includes overhead and payload. Taking the OTUk signal as an example, the components of the OTN signal are further described. The OTUk signal is composed of OTUk. The remaining part of the OTUk after removing the OTUk overhead is called the...

Embodiment 2

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

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

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

[0076] S203: Perform an overhead insertion operation on the processed 6...

Embodiment 3

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

[0112] The conversion 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 coded block, that is to say, when the initial format of the service is not the PCS coded block, it needs to be converted to obtain the data stream of the PCS coded block. When the format is a PCS code block, the service to be transmitted is the original service, and the PCS code block includes at least one of 8b / 10b and 64b / 66b. In practical applications, the PCS code block can also be other combinations , not limited to the above two types of 8b / 10b, 64b / 66b, that is to say, the coding blocks that are coded through t...

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Abstract

The embodiment of the invention provides a service transmission method and device, optical transport network equipment and a storage medium. Service to be transmitted is mapped into an optical channeldata unit; the optical channel data unit comprises payloads of M PCS coding blocks and overhead of N PCS coding blocks. And finally, the obtained optical channel data unit is sent out through a transmission interface. Namely, the optical channel data unit obtained through mapping which is a new optical channel data unit is mapped through the payload and the overhead, specifically the proportionalrelation of M / N. The structure is designed and obtained according to the transmission requirement required by the customer service; based on the structure, hardware implementation is simpler when theoptical transport network equipment is designed, and transcoding processing of various types of services is also facilitated, so that the processing efficiency and the transmission efficiency of high-speed compression services are achieved, the transmission power consumption of the equipment is also reduced, and the development cost of the equipment is reduced.

Description

technical field [0001] 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 device, optical transport network equipment, and storage media. 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 carrying Ethernet service transmission 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 an overhe...

Claims

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Application Information

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