公开(公告)号：US20230276230A1

公开(公告)日：2023-08-31

申请号：US18018236

申请日：2020-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyungho LEE ,  Sangrim LEE ,  Kljun JEON ,  Sungjin KIM

IPC: H04W12/02 ,  H04W74/08

CPC classification number: H04W12/02 ,  H04W74/0833

Abstract: The present specification relates to a method and a device for randomizing a signal that satisfies ε-differential privacy, the method receiving a signal having a specific value of a bit error rate (BER), and generating a randomized signal on the basis of the signal, and then transmitting the randomized signal to a machine learning server. If a differential privacy mechanism is provided in a physical layer, true randomness of a wireless channel causes security to be less vulnerable than that of a pseudo random mechanism provided by an application, communication delay is reduced, and the power of the device can be reduced.