公开(公告)号：US10177805B2

公开(公告)日：2019-01-08

申请号：US15188597

申请日：2016-06-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kapseok Chang ,  Hyung Sik Ju

IPC: H04B1/40 ,  H04B1/525

Abstract: A method and an apparatus for tuning an FIR filter in an in-band full duplex transceiver. The method for tuning an FIR filter includes: converting an input signal of the FIR filter into a first signal that is a baseband signal; converting a signal obtained by subtracting an output signal of the FIR filter from the self-transmitted interference signal into a second signal that is the baseband signal; and calculating attenuation of the FIR filter using the first signal and the second signal.

公开(公告)号：US10038471B2

公开(公告)日：2018-07-31

申请号：US15008005

申请日：2016-01-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kapseok Chang ,  Seon-Ae Kim ,  Hyung Sik Ju

IPC: H04L12/28 ,  H04B1/525 ,  H04L5/14

CPC classification number: H04B1/525 ,  H04L5/14

Abstract: There are provided a method and an apparatus for performing a self-interference cancellation by determining a filter coefficient of an analog filter operated in an analog domain; and canceling self-interference generated in a received signal received by the node by a transmitted signal transmitted from the node, based on the filter coefficient.

公开(公告)号：US09736886B2

公开(公告)日：2017-08-15

申请号：US14625619

申请日：2015-02-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung-Jin Kwon ,  Sung-Geun Jin ,  Kapseok Chang ,  Woo-Yong Lee

IPC: H04W28/16 ,  H04W28/04 ,  H04W88/04 ,  H04B7/022 ,  H04B7/0408 ,  H04B7/155 ,  H04B7/26 ,  H04W28/18 ,  H04W76/02 ,  H04W84/12

CPC classification number: H04W88/04 ,  H04B7/022 ,  H04B7/0408 ,  H04B7/155 ,  H04B7/2606 ,  H04W28/18 ,  H04W76/10 ,  H04W84/12

Abstract: A method for setting up a relay link to transfer a data frame using a relay in a wireless communication system. The relay link setup method of a source in the system may include receiving capability information of at least one relay supporting station included in the system from an access point or a personal basic service set central point, selecting one of the at least one relay supporting station as a relay station, using beam forming information among the source station, a destination station, and the at least one relay supporting station and the capability information, transferring a relay link setup request frame to the destination station, and receiving a relay link setup response frame that includes information on a relay link setup result from the destination station. The relay link setup request frame and the relay link setup response frame may pass through the relay station.

公开(公告)号：US09497723B2

公开(公告)日：2016-11-15

申请号：US15014315

申请日：2016-02-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Geun Jin ,  Kapseok Chang ,  Hyoung Jin Kwon ,  Woo Yong Lee ,  Hyun Kyu Chung

IPC: H04J3/06 ,  H04W56/00 ,  H04W4/00 ,  H04W88/02 ,  H04W84/12

CPC classification number: H04W56/0065 ,  H04L65/4076 ,  H04W4/80 ,  H04W56/0075 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed is a method for adjusting a transmission time point of at least one second terminal in a wireless network by a first terminal. In the method for adjusting a transmission time point of a terminal, a transmission time point of the second terminal is set, a first frame including information regarding the transmission time point is transmitted to the second terminal, a first response frame transmitted according to the transmission time point from the second terminal is received, and the transmission time point is adjusted according to an arrival time of the first response frame.

Abstract translation: 公开了一种用于通过第一终端来调整无线网络中的至少一个第二终端的传输时间点的方法。 在调整终端的发送时刻的方法中，设定第二终端的发送时刻，将与发送时刻有关的信息的第一帧发送到第二终端，根据发送发送的第一应答帧 接收来自第二终端的时间点，并且根据第一响应帧的到达时间来调整发送时间点。

公开(公告)号：US09407486B2

公开(公告)日：2016-08-02

申请号：US14645099

申请日：2015-03-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kapseok Chang ,  Byung-Jae Kwak

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04W56/00 ,  H04L27/20 ,  H04B1/04

CPC classification number: H04L27/2621 ,  H03F1/02 ,  H03F3/24 ,  H04B1/04 ,  H04B2001/045 ,  H04L27/20 ,  H04L27/261 ,  H04W56/001

Abstract: A method and apparatus for generating a signal in a wireless communication system by allocating a sequence to a plurality of subcarriers for sending the signal and generating the signal based on the sequence and a phase rotation sequence are provided.

Abstract translation: 一种方法和装置，用于通过向多个子载波分配序列来产生无线通信系统中的信号，用于发送信号并且基于该序列和相位旋转序列产生信号。

公开(公告)号：US09036458B2

公开(公告)日：2015-05-19

申请号：US13658417

申请日：2012-10-23

Applicant: Samsung Electronics Co., Ltd. ,  Electronics and Telecommunications Research Institute

Inventor： Young-Jo Ko ,  Hyeong-Geun Park ,  Il-Gyu Kim ,  Kapseok Chang ,  Hyoseok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC: H04L5/00 ,  H04J13/00

CPC classification number: H04L5/0016 ,  H04J13/0074 ,  H04L5/0017 ,  H04L5/0019 ,  H04L5/0021 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055

Abstract: A method is provided for forming a signal in a wireless communication system in which a plurality of terminals commonly use time and frequency resources for efficient code hopping. The method includes allocating the same frequency-axis sequence and different time-axis sequences to a plurality of terminals by using a resource index according to a first slot in the first slot; and allocating different frequency-axis sequences and different time-axis sequences to the plurality of terminals by using a resource index according to a second slot in the second slot.

Abstract translation: 提供了一种用于在无线通信系统中形成信号的方法，其中多个终端通常使用时间和频率资源来进行有效的跳码。 该方法包括通过使用根据第一时隙中的第一时隙的资源索引向多个终端分配相同的频率轴序列和不同的时间轴序列; 以及通过使用根据所述第二时隙中的第二时隙的资源索引，向所述多个终端分配不同的频率轴序列和不同的时间轴序列。