METHOD AND APPARATUS FOR TRANSMITTING ENCRYPTION CONTROL OVERHEAD IN OPTICAL TRANSPORT NETWORK

WIPO Patent Application WO/2021/244489

A1

The present disclosure provides a method and apparatus for transmitting an encryption control overhead in an optical transport network (OTN). The method comprises: mapping a service into an optical service unit (OSU) data stream, wherein an OSU is composed of N basic blocks, and the N basic blocks comprise one OSU overhead and N-1 OSU payloads; inserting an encryption control overhead into an OSU overhead channel of the OSU data stream every M frame(s), wherein M is an integer greater than or equal to 1; mapping the OSU data stream into a payload block (PB) of a payload area of an OTN frame; and encapsulating the data frame into an optical transform unit (OTU) frame, and sending the OTU frame to a sink. The problem in the related art that the use of existing ODUk reserved bytes in OTN frame structures to establish security management information channels may result in that the number of the ODUk reserved bytes is limited, and some reused existing bytes conflict in special scenarios and the method for saving limited ODUk reserved bytes by means of multi-frame transmission is not flexible can be solved, and flexible control to security management information is achieved.

WO/2002/023324	REMOTE CONTROL METHOD FOR A COMPUTER DISPLAY SCREEN
WO/2017/001640	COMMUNICATION SYSTEM
WO/2019/145456	SECURING HEADLESS DEVICES FROM MALICIOUS (RE-)CONFIGURATION

CHEN SONG (CN)
ZHANG YUANBIN (CN)

PCT/CN2021/097388

December 09, 2021

May 31, 2021

Click for automatic bibliography generation  

ZTE CORP (CN)

H04L29/06; H04J3/16; H04Q11/00

CN106161416A	2016-11-23
CN107800502A	2018-03-13
US20180295103A1	2018-10-11
US20190199449A1	2019-06-27

KANGXIN PARTNERS, P.C. (CN)

View/Download PDF      PDF Help

Previous Patent: LIGHT SOURCE SYSTEM AND LASER PROJECTION DISPLAY DEVICE

Next Patent: LINK SELECTION METHOD AND APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM