公开(公告)号：US20240340975A1

公开(公告)日：2024-10-10

申请号：US18578703

申请日：2022-07-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Jae Cheol PARK ,  Jin Hyung OH ,  Dong Woo LIM ,  Su Na CHOI ,  Yong Ho KIM

IPC: H04W74/0833 ,  H04L1/00 ,  H04W74/08 ,  H04W74/0816

CPC classification number: H04W74/085 ,  H04L1/0008 ,  H04W74/0816 ,  H04W74/0891

Abstract: A method and apparatus for NSTR communication in a communication system supporting multiple links are disclosed. A method for a first device comprises the steps of: if a first backoff operation has succeeded on a first link belonging to a first pair of NSTR links on which an STR operation of a second device is not supported, transmitting a first data frame to the second device on the first link; performing a second backoff operation for transmission of a second data frame on a second link belonging to the first pair of NSTR links; if the second backoff operation has succeeded on the second link, identifying whether or not a transmission operation of the second device is performed on the first link belonging to the pair of NSTR links; and transmitting the second data frame to the second device on the second link.

公开(公告)号：US20240340950A1

公开(公告)日：2024-10-10

申请号：US18291550

申请日：2022-08-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Jae Cheol PARK ,  Jin Hyung OH ,  Dong Woo LIM ,  Su Na CHOI ,  Yong Ho KIM

IPC: H04W74/0816

CPC classification number: H04W74/0816

Abstract: Disclosed are a method and device for bidirectional communication in a wireless LAN. The method of a first STA comprises the steps of: receiving, from an AP, a first frame including an information element indicating TXOP sharing; confirming a shared TXOP duration on the basis of the first frame; and communicating with a second STA within the shared TXOP duration.

公开(公告)号：US20220338251A1

公开(公告)日：2022-10-20

申请号：US17761029

申请日：2020-09-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Jae Cheol PARK ,  Jin Hyung OH ,  Su Na CHOI ,  Yong Ho KIM ,  Yong Su GWAK

IPC: H04W74/04 ,  H04W74/00 ,  H04B7/0452

Abstract: A method for sharing a multilink in a next-generation wireless LAN is disclosed. An operation method of a first communication node comprises the steps of: setting a transmission interval; communicating with a second communication node by using a first link and a second link in the transmission interval; sharing the transmission interval with a third communication node; and communicating with the second communication node by using the first link in the transmission interval.

公开(公告)号：US20220287121A1

公开(公告)日：2022-09-08

申请号：US17624248

申请日：2020-07-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Jae Cheol PARK ,  Jin Hyung OH ,  Su Na CHOI ,  Yong Ho KIM ,  Han Seul HONG

IPC: H04W76/15 ,  H04W74/08

Abstract: The present invention relates to an operating method of a first communication node in a communication system, comprising the steps of: negotiating with a second communication node with respect to a parameter for multi-link transmission; determining, on the basis of the parameter, a plurality of links for performing the multi-link transmission, and the transmission method by which the multi-link transmission is performed; and transmitting, in the plurality of links, a data frame to the second communication node by means of the transmission method. Therefore, the communication node can efficiently set and change links.

公开(公告)号：US20180110090A1

公开(公告)日：2018-04-19

申请号：US15562005

申请日：2016-01-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Sun UM ,  Kyu Min KANG ,  Seung Keun PARK ,  Jae Cheol PARK ,  Sung Jin YOO ,  Dong Hun LEE ,  Hoi Yoon JUNG ,  Su Na CHOI ,  Sung Hyun HWANG

IPC: H04W76/16 ,  H04W74/08 ,  H04W72/12 ,  H04W16/14 ,  H04W28/06 ,  H04W72/04

Abstract: The present invention relates to a device and method for allocating a coexistence resource in an unlicensed band. The device according to the present invention comprises: a frame configuration unit for configuring a subframe in which data and a reference signal for a channel in an unlicensed band are allocated, and allocating a part of the symbols of the subframe as a coexistence resource; a signal detection unit for detecting a signal of another LTE system or Wi-Fi system during a transmission idle period where the coexistence resource is allocated; and a transmission processing unit which, when the signal of another system is detected during the transmission idle period, does not occupy a resource for the next subframe, and when the occupation of the coexistence resource by the another system has ended, occupies the resource for the next subframe.

公开(公告)号：US20170149463A1

公开(公告)日：2017-05-25

申请号：US15356397

申请日：2016-11-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyu Min KANG ,  Seung Keun PARK ,  Jae Cheol PARK

IPC: H04B1/10 ,  H04L27/26 ,  H04W24/08

CPC classification number: H04B1/1027 ,  H04L27/265 ,  H04W24/08

Abstract: The present disclosure provides apparatuses or methods for detecting a PIM generation point, which can enhance the accuracy of the PIM generation point detection up to a level of 10 centimeters, and thus enable rapid replacement or maintenance of a disfunctional element causing the PIM by installing and controlling a time delay module in an output end of a reference signal (or, a PIM signal) for detection of the PIM generation point.

公开(公告)号：US20150312912A1

公开(公告)日：2015-10-29

申请号：US14478303

申请日：2014-09-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyu Min KANG ,  Jae Cheol PARK ,  Dong Hun LEE ,  Byung Jang JEONG

IPC: H04W72/04

CPC classification number: H04W16/14

Abstract: Disclosed is a network management apparatus for priority channel assignment to acquire available channels in a frequency sharing band, including: a signal intensity measurer measuring a received signal intensity for an input signal; and a controller verifying usable candidate channels in the same channel and an adjacent channel of a TV band device (TVBD) for each predetermined frequency based on the measured received signal intensity, verifying available channels of the TVBD based on the verified usable candidate channels in the same channel and the adjacent channel, calculating the decreased number of available channels of the TVBD predicted for each channel after channel reassignment, and assigning channels to be reassigned based on the calculated decreased number of available channels of the TVBD.

Abstract translation: 公开了一种用于优先级信道分配的网络管理装置，用于获取频率共享频带中的可用信道，包括：信号强度测量器，用于测量输入信号的接收信号强度; 以及控制器，用于基于所测量的接收信号强度，针对每个预定频率在同一信道和相邻信道中验证可用的候选信道，基于所验证的可用候选信道来验证TVBD的可用信道 计算在频道重新分配之后为每个频道预测的TVBD可用频道的数量减少，以及基于所计算的TVBD的可用信道数减少来分配要重新分配的频道。

公开(公告)号：US20150257017A1

公开(公告)日：2015-09-10

申请号：US14599733

申请日：2015-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sang In CHO ,  Kyu Min KANG ,  Jae Cheol PARK ,  Byung Jang JEONG

IPC: H04W24/02

CPC classification number: H04W16/18

Abstract: Disclosed is a method for calculating a radio coverage in a wireless device for calculating a protective distance so as not to allow a secondary user sharing a frequency with a primary user to have an effect of radio interference on the primary user, the method including: calculating a transmission power of a wireless signal transmitted through the frequency by the secondary user; determining a region affected by the wireless signal based on the transmission power of the secondary user; calculating an average ground clearance of the determined region; calculating a height of an installation place of an antenna of the secondary user from the average ground clearance; and calculating the height of the antenna from the average ground clearance by adding a length of the antenna of the secondary user to the calculated height and calculating the radio coverage based on the height from the average ground clearance.

Abstract translation: 公开了一种用于计算无线设备中用于计算保护距离的无线电覆盖的方法，以便不允许与主用户共享频率的次要用户对主用户具有无线电干扰的影响，该方法包括：计算 通过次要用户通过频率发送的无线信号的发送功率; 基于所述次要用户的发送功率来确定受所述无线信号影响的区域; 计算确定区域的平均离地间隙; 从平均离地间隙计算二次用户的天线的安装位置的高度; 以及通过将所述次要用户的天线的长度与计算出的高度相加来计算所述天线的高度，并且基于距所述平均离地间隙的高度计算所述无线电覆盖。