Method and circuit applying SFEC to realize bit width transformation of bus in OTN (optical transport network)

A technology of bus bit width and optical transport network, which is applied in the field of encoding and decoding, can solve the problems of OTN system bus bit width mismatch, etc., and achieve the effect of simple and effective implementation method and strong operability

Inactive Publication Date: 2013-01-16
FENGHUO COMM SCI & TECH CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is to solve the problem that the bus bit width does not match in the OTN system using SFEC coding rules

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and circuit applying SFEC to realize bit width transformation of bus in OTN (optical transport network)
  • Method and circuit applying SFEC to realize bit width transformation of bus in OTN (optical transport network)
  • Method and circuit applying SFEC to realize bit width transformation of bus in OTN (optical transport network)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention provides a method and circuit for implementing bus bit width conversion in optical transport network using SFEC, which is used to realize the 64-bit input bus bit width of OTN frame to the required value for SFEC outer code RS (1023, 1007) encoding processing The 80-bit bus width conversion process and the conversion process from the 80-bit bus bit width to the 64-bit bus width required for the inner code BCH (2040, 1952) encoding after the SFEC outer code RS (1023, 1007) encoding process, to Adapt to SFEC outer code RS (1023, 1007) coding process and SFEC inner code BCH (2040, 1952) coding process.

[0040] In order to better understand the present invention, the coding principles of the SFEC outer code RS (1023, 1007) and the inner code BCH (2040, 1952) are first introduced below.

[0041] The OTN frame structure specified in the ITU_T G.709 recommendation is as follows figure 1 As shown, the frame structure is a block byte structure with 4 rows and 4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method and a circuit applying SFEC to realize bit width transformation of a bus in an OTN (optical transport network). The steps of the method are as follows: S10, OTN-frame data input by a 64-bit system bus is encoded according to the encoding rule of an outer code RS (1,023 and 1,007) and is stored in a buffer memory M which is composed of 8 RAMs, and the size of each RAM is 1,530*10; S20, 10 RS (1,023 and 1,007) encoded data is respectively read at a time from the 8 RAMs of the buffer memory M, encoded according to the encoding rule of an inner code BCH (2,040 and1,952) and then stored in a buffer memory N which is also composed of 8 RAMs, and the size of each RAM is 244*64; S30, 64 BCH (2,040 and 1,952) encoded data is sequentially output from the 8 RAMs of the buffer memory N to the 64-bit system bus. By controlling the read-write operation of the buffer memories, the invention realizes the bus transformation from 64-bit width to 80-bit width required by the outer code and the bus transformation from 80-bit width to 64-bit width. The realization of the method is simple and effective, and the operability is strong.

Description

Technical field [0001] The invention relates to the coding and decoding technology of an OTN optical transmission network, in particular to a method and circuit for implementing bus bit width conversion in an optical transmission network using SFEC. Background technique [0002] With the advent of the network age, people's demand for information is increasing day by day. Because optical communication technology has huge bandwidth resources and relatively low manufacturing costs, as the foundation of the next-generation broadband communication network and an important support platform for information transmission technology, OTN will play a very important role in the future information society. The role of. [0003] With the increasing demand for information, the telecommunications network has greatly expanded the demand space for optical communication systems and stimulated the rapid development of optical communication systems themselves. A better way to further increase the cap...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/861H04Q11/00
Inventor 朱齐雄
Owner FENGHUO COMM SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap