公开(公告)号：US20230379017A1

公开(公告)日：2023-11-23

申请号：US18131990

申请日：2023-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Keun Young KIM ,  Jung Ho MYUNG ,  Sung Ho CHAE ,  Hyeon Woong KIM ,  Hyun Jung PARK ,  Su Hyun OH

IPC: H04B7/0456

CPC classification number: H04B7/0456

Abstract: A signal transmitting method suitable for a MU-MIMO environment and achieving a high performance with low complexity is provided. The signal transmitting method includes: splitting each message stream into a common message stream and a private message stream; combining a plurality of common message streams for the plurality of receivers to generate a common stream; encoding the common stream and private message streams for the plurality of receivers to generate an encoded common stream and encoded private message streams; precoding the encoded common stream and the encoded private message streams to adjust amplitudes and phases of symbols such that power is distributed between the encoded common stream and the encoded private message streams and generate precoded signals; and converting the precoded signals into a plurality of RF signals, adjusting phases of the plurality of RF signals, and outputting the phase-adjusted RF signals through a plurality of MIMO antennas.

公开(公告)号：US20170262627A1

公开(公告)日：2017-09-14

申请号：US15235657

申请日：2016-08-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Ho MYUNG

IPC: G06F21/45

CPC classification number: G06F21/45 ,  G06F21/316

Abstract: A situational awareness based login apparatus and method. The situational awareness based login apparatus includes a situation information collecting unit configured to collect situation information around a device, a situational awareness processing unit configured to identify and store a user from the collected situation information, and a device authenticating unit configured to compare the situation information and pre-stored device operation policy information and calculate a satisfaction rate, and configured to provide different login processes based on the calculated satisfaction rate.

公开(公告)号：US20190306701A1

公开(公告)日：2019-10-03

申请号：US16193015

申请日：2018-11-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Ho MYUNG ,  Keunyoung KIM ,  Jihoon SEO

IPC: H04W12/00 ,  H04K1/10

Abstract: A method of transmitting secret data includes determining a parameter value used to encode secret data based on a number of independent radio channels between a transmitter and a receiver corresponding to the transmitter, generating predetermined variables used to divide the secret data based on the parameter value, encoding the secret data based on the parameter value and the predetermined variables, and transmitting the encoded secret data to the receiver.

公开(公告)号：US20240097770A1

公开(公告)日：2024-03-21

申请号：US18091027

申请日：2022-12-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Ho MYUNG ,  Young-Jo KO ,  Keun Young KIM ,  Kapseok CHANG

IPC: H04B7/08

CPC classification number: H04B7/08

Abstract: An operation method of a first access point (AP) may comprise: transmitting, to a control device of a base station, channel information between the first AP and one or more user equipments (UEs) connected to the base station; receiving allocation information determined by the control device; identifying an entity to decode a uplink (UL) signal of each of the one or more UEs from among a plurality of APs and the control device constituting the base station, based on the allocation information; directly performing a decoding operation on a first UL signal received from a first UE among the one or more UEs, based on the allocation information; and transmitting, to the control device, a first report related to a result of the decoding operation on the first UL signal.

公开(公告)号：US20180212864A1

公开(公告)日：2018-07-26

申请号：US15818912

申请日：2017-11-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Ho MYUNG

IPC: H04L12/721 ,  H04L12/801 ,  H04L12/707

CPC classification number: H04L45/12 ,  H04L45/128 ,  H04L45/24 ,  H04L45/64 ,  H04L47/12

Abstract: A disclosure of the present invention is related to a method and an apparatus for overlap-resistant dynamic routing to prevent a path from overlapping. A method of performing an overlap-resistant routing according to an embodiment of the present disclosure includes: computing p candidate paths (p is an integer more than 2) from a first host to a second host based on information related to a network structure; computing k paths (k is an integer more than 1, k≤P) with low redundancy from the p candidate paths; and setting one path from the k paths according to a path change timing.