METHOD AND DEVICE FOR ESTIMATING QUANTUM BIT ERROR RATE ON BASIS OF MAXIMUM BIT GROUP AND TWO-DIMENSIONAL PARITY

Title:

METHOD AND DEVICE FOR ESTIMATING QUANTUM BIT ERROR RATE ON BASIS OF MAXIMUM BIT GROUP AND TWO-DIMENSIONAL PARITY

Document Type and Number:

WIPO Patent Application WO/2022/045378

Kind Code:

A1

Abstract:

The present specification provides a method for estimating a quantum bit error rate (QBER) for key information, performed by a device in a quantum cryptography communication system, the method and device being characterized by: receiving a random access (RA) preamble from another device; transmitting a random access response (RAR) to the other device, in response to the RA preamble; performing a radio resource control (RRC) connection process with the other device; receiving data from the other device; and decoding the data on the basis of the key information, wherein the key information is determined on the basis of estimation of the QBER, and the device estimates the QBER on the basis of first two-dimensional parity information received from the other device through a public channel.

Inventors:

AHN BYUNGKYU (KR)
LEE SANGRIM (KR)
LEE HOJAE (KR)
KIM JAYEONG (KR)
KIM SUNGJIN (KR)

Application Number:

PCT/KR2020/011256

Publication Date:

March 03, 2022

Filing Date:

August 24, 2020

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H03M13/01; H03M13/11; H04L1/00; H04L1/20; H04L9/08

Foreign References:

KR20200074093A	2020-06-24
KR20150088490A	2015-08-03
KR20080083176A	2008-09-16
KR20200022627A	2020-03-04
EP3416332B1	2020-04-08

Other References:

KIKTENKO E. O.; MALYSHEV A. O.; BOZHEDAROV A. A.; POZHAR N. O.; ANUFRIEV M. N.; FEDOROV A. K.: "Error Estimation at the Information Reconciliation Stage of Quantum Key Distribution", JOURNAL OF RUSSIAN LASER RESEARCH, CONSULTANTS BUREAU, NEW YORK, NY,, US, vol. 39, no. 6, 20 November 2018 (2018-11-20), US , pages 558 - 567, XP036649161, ISSN: 1071-2836, DOI: 10.1007/s10946-018-9752-y

Attorney, Agent or Firm:

ENVISION PATENT & LAW FIRM (KR)

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