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Data transmission method, transmission device and transmission system

A technology of data transmission method and transmission equipment, which is applied in the direction of digital transmission system, transmission system, baseband system, etc., and can solve the problems of processing delay and complexity

Active Publication Date: 2020-04-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing delay and complexity of this mapping process are very large

Method used

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  • Data transmission method, transmission device and transmission system
  • Data transmission method, transmission device and transmission system
  • Data transmission method, transmission device and transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] In this embodiment, obtaining at least one 64B / 66B code block stream may include: receiving a first client service (for example, a non-FlexE service); performing 64B / 66B encoding on the first client service to obtain a 64B / 66B data code block ; Perform rate adaptation on the 64B / 66B data code blocks; insert overhead code blocks into the rate-adapted 64B / 66B data code blocks to form at least one 64B / 66B code block stream.

[0080] It should be understood that the client service in this embodiment may include at least one of the packet service and the fixed bit rate CBR service described above, and may also include other types of client services, which are not limited in this embodiment.

[0081] Specifically, in this embodiment, customer services are uniformly adapted to 64B / 66B code blocks, and the rate of 64B / 66B data code blocks is adapted to be consistent with the time slot size of the FlexO frame through IDLE addition and deletion, and then overhead code blocks are i...

Embodiment 2

[0091] In this embodiment, obtaining at least one 64B / 66B code block stream may include: receiving the FlexE service code block stream, parsing the FlexE service code block stream into at least one FlexE customer service code block stream, and in the FlexE customer service code block stream The code blocks are 64B / 66B code blocks; the overhead code blocks are inserted into the FlexE customer service code block stream to form at least one 64B / 66B code block stream.

[0092] It should be understood that this embodiment can be considered as mapping the 64B / 66B code block stream to the corresponding time slot of the FlexO frame through a termination (Termination) mapping manner.

[0093] Figure 5 It is a schematic diagram of the application scenario of the Termination mapping method. Figure 6 It is a schematic diagram of the FlexO carrying the FlexE service code block flow in a termination mapping manner in an embodiment of the present application. In this embodiment, the send...

Embodiment 3

[0096] In this embodiment, obtaining at least one 64B / 66B code block stream may include: receiving the FlexE service code block stream, and using the FlexE service code block stream as at least one 64B / 66B code block stream.

[0097] It should be understood that this embodiment can be regarded as mapping the 64B / 66B code block stream to the corresponding time slot of the FlexO frame through an unaware (Unaware) mapping manner.

[0098] Figure 7 It is a schematic diagram of the application scenario of the Unaware mapping method. Figure 8 It is a schematic diagram of FlexO carrying a FlexE service code block flow in an Unaware mapping manner in another embodiment of the present application. In this embodiment, the sending end receives the FlexE service code block stream. For example, by Figure 8 The shown m*100G FlexE Group receives 100G FlexE frame #1, ..., 100G FlexE frame #j, ..., 100G FlexE frame #m. Each 100G FlexE frame (that is, the FlexE service code block stream)...

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Abstract

The present application provides a data transmission method, transmission equipment and transmission system. The data transmission method includes: obtaining at least one 64B / 66B code block stream, and the rate of each 64B / 66B code block stream is a positive integer multiple of 5G; mapping at least one 64B / 66B code block stream to at least one flexible optical transport network The corresponding time slot of the FlexO frame; adding FlexO overhead for at least one FlexO frame to form a FlexO code block stream; transmitting the FlexO code block stream. The data transmission method, transmission equipment and transmission system provided in this application can form a simple transmission system and provide a flexible bearer solution.

Description

technical field [0001] The present application relates to the field of transport network, and more specifically, to data transmission technology. Background technique [0002] In the Flexible Ethernet Implementation Agreement (Flex Ethernet Implementation Agreement) released by the Optical Internet Forum (OIF) in April 2016, a concept of a Flexible Ethernet (FlexibleEthernet, FlexE) interface was proposed. Specifically, FlexE establishes several Ethernet physical layer (Physical Layer, PHY) links into a flexible Ethernet group (Flex Ethernet Group, FlexE Group) to support binding, sub-rate, channelization, etc. for Ethernet services Features. [0003] At the same time, with the rapid growth of business traffic and the diversification of business types, the fixed-rate interfaces provided by traditional transport networks can no longer meet the interconnection requirements, and the industry prefers flexible-rate interfaces. Therefore, the Telecommunications Standardization S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/16H04L25/49H04L1/00
CPCH04J3/1664H04L25/4908H04L1/0015H04J3/16H04J14/08H04L1/00H04L25/49H04J2203/0085H04L9/40
Inventor 向俊凌丁炽武
Owner HUAWEI TECH CO LTD