公开(公告)号：US20240187830A1

公开(公告)日：2024-06-06

申请号：US17796493

申请日：2021-10-19

Applicant: Korea Electronics Technology Institute

Inventor： Seong Yun KIM ,  Il Yeup AHN ,  Seung Myeong JEONG ,  Nak Myoung SUNG

IPC: H04W4/70 ,  G16Y40/35

CPC classification number: H04W4/70 ,  G16Y40/35

Abstract: Provided is a resource label retrieval method in a one M2M system. A resource information retrieval method according to an embodiment of the present disclosure includes retrieving, by the M2M system, labels of resources when a label retrieval request regarding resources is received, determining, by the M2M system, whether to return an interworking information label on which information regarding data interworking with another system is recorded, among the retrieved labels of the resources, and returning a label of a resource retrieved according to a result of the determining. Accordingly, when retrieval of a resource label is requested, an interworking information label is selectively/restrictively returned based on a type of an AE which requests or a type of a retrieval request, so that a service error caused by provision of unnecessary information can be prevented and information security can be strengthened.

公开(公告)号：US20240184824A1

公开(公告)日：2024-06-06

申请号：US17796598

申请日：2021-10-19

Applicant: Korea Electronics Technology Institute

Inventor： Seong Yun KIM ,  Sung Chan CHOI ,  Jong Hong PARK ,  Sung Wook JUNG

IPC: G06F16/901

CPC classification number: G06F16/901

Abstract: There is provided a data interworking method between a oneM2M system and an NGSI-LD system. The data interworking method according to an embodiment of the present disclosure includes: retrieving, by an IPE, resources in the oneM2M system that perform data interworking with the NGSI-LD system; retrieving labels of the retrieved resources; acquiring a mapping-rule from the retrieved labels; and storing the acquired mapping-rule. Accordingly, data interworking between data platforms using different standards is performed more easily, so that technology may go one step further to the goal of interconnecting and servicing all things in a global environment as IoT ultimately pursues.

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.