公开(公告)号：US20220232083A1

公开(公告)日：2022-07-21

申请号：US17609918

申请日：2019-11-20

Applicant: Korea Electronics Technology Institute

Inventor： Seong Yun KIM ,  Seung Myeong JEONG ,  Ji Ho LEE

IPC: H04L67/145 ,  H04L61/256 ,  H04L61/2553 ,  H04L67/12

Abstract: Provided are an IoT device and an IoT communication method. The IoT device may: be connected to a server via NAT; execute a first session for service connection; and execute a second session for calculating a particular keep-alive value corresponding to a period in which an IP address mapped by the NAT expires. The present invention can minimize transmission of a keep-alive value of an IoT device, enables an IoT device to share a particular keep-alive value with other IoT devices, and thus can minimize a network load which may be caused by a keep-alive value of an IoT communication device.