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Method for using flexe to carry signal frames, method and device for restoring flexe signal frames

A signal frame and alarm information technology, applied in the field of communication, can solve the problems of high overhead and low efficiency, and achieve the effect of low processing level and small delay

Active Publication Date: 2022-03-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method for carrying signal frames using FlexE, a method and a device for restoring signal frames, to solve the problems that the existing CPRI frame transmission method on Ethernet needs to add more overhead and the efficiency is relatively low

Method used

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  • Method for using flexe to carry signal frames, method and device for restoring flexe signal frames
  • Method for using flexe to carry signal frames, method and device for restoring flexe signal frames
  • Method for using flexe to carry signal frames, method and device for restoring flexe signal frames

Examples

Experimental program
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no. 1 example

[0050] This embodiment provides a method of using FlexE to carry signal frames, figure 1 is the flowchart of the method, such as figure 1 As shown, the method includes the following processing:

[0051] Step 101: Extract control code and data code from the signal frame;

[0052] Step 102: Perform encoding conversion on the control code according to the regulations of the Elastic Ethernet FlexE, insert custom overhead into the control block obtained after the encoding conversion, obtain the control block, and perform rate adaptation on the control block;

[0053] In this embodiment, the rate adaptation may specifically include: according to the total rate of the time slot to be placed in the FlexE signal frame, calculating the difference with the rate of the CPRI basic frame rate option after 64 / 66 encoding, and according to the difference Calculate the target number of idle control blocks to be inserted, and insert the target number of idle control blocks between the end con...

no. 2 example

[0065] This embodiment provides a method for restoring a signal frame, figure 2 is the flowchart of the method, such as figure 2 As shown, the method includes the following steps:

[0066] Step 201: receiving the data block and the control block of the FlexE signal frame;

[0067] Step 202: When the control block is received, extract the custom overhead carried in the control block and perform code conversion on the control block according to the regulations of CPRI or GE;

[0068]Step 203: When the data block is received, code conversion is performed on the data block according to the stipulations of CPRI or GE.

[0069] In a specific example, the FlexE frame is converted from a CPRI frame. Based on this, when the control block is received, the custom overhead carried in the control block is extracted and the control block is encoded and converted according to the CPRI regulations. When the data is received block, the data block is coded and converted according to the C...

no. 3 example

[0073] This embodiment uses the process of using FlexE to carry CPRI signals as an example to illustrate the method provided by the present invention. The process may specifically include the following steps:

[0074] Step 1, extracting CPRI frames.

[0075] Extract the control code and data code from the CPRI frame, and obtain the rate information, alarm information, data checksum and other information of the CPRI frame.

[0076] For CPRI options 1 to 7, the code is converted from 10B to 8B data code and control code; for CPRI options 8 to 10, the information of the control block and data block is obtained directly according to the type of the 2-bit Sync header of the 66B block.

[0077] Step 2, converting control codes, inserting overhead and performing rate adaptation.

[0078] The 8B control code (K28.5) of CPRI options 1 to 7 (that is, the first seven options of the CPRI line rate option) is converted into a / T / end control block, and a / S / start control block, and in th...

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Abstract

The present invention provides a method for carrying client signals using FlexE, and a method and device for restoring client signals, which are used to solve the problems that the existing CPRI frame transmission method on the Ethernet needs to add more overhead and the efficiency is relatively low. The method includes: extracting a control code and a data code from a signal frame; performing code conversion on the control code according to the regulations of the elastic Ethernet FlexE, inserting a custom overhead into the control block obtained after the code conversion to obtain the control block, and Perform rate adaptation on the control block; encode and convert the data code according to FlexE regulations to obtain a data block; use FlexE to bear the rate-adapted control block and data block. The scheme reduces the overhead during the transmission of the CPRI frame on the Ethernet and improves the efficiency.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for using FlexE (Flex Ethernet, flexible Ethernet) to carry signal frames, and a method and device for restoring the FlexE signal frames. Background technique [0002] The Common Public Radio Interface (CPRI for short) is an industrial cooperation organization initiated by Ericsson, Huawei, NEC, Nortel Networks and Siemens. The protocol of the internal main interface specification. The CPRI protocol defines a variety of line rate options, as shown in Table 1 below: [0003] Table 1 [0004] [0005] Among them, the line coding used by the physical layer (Layer 1) of CPRI options 1 to 7 is 8B / 10B line coding that meets the requirements of IEEE 802.3-2005[1], clause 36; and the physical layer (Layer 1) of options 8 to 10 The line coding used is 64B / 66B line coding that complies with IEEE 802.3-2008[22], clause 49 requirements. The above CPRI options all belong to C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0006H04L1/0009H04L1/0013
Inventor 罗利人
Owner ZTE CORP