公开(公告)号：US20240251408A1

公开(公告)日：2024-07-25

申请号：US18628818

申请日：2024-04-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hoi Yoon JUNG ,  Sung lk Park ,  Nam Ho Hur ,  Seok Ki Ahn ,  Sung Jun Ahn

IPC: H04W72/1273 ,  H04W72/044 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W72/044 ,  H04W72/23

Abstract: An operation method of a terminal in a communication system may comprise: performing a monitoring operation to receive BWP configuration information for common downlink communication; in response to receiving the BWP configuration information from the base station, configuring a common frequency region for the common downlink communication based on the BWP configuration information; receiving DCI including scheduling information of the common downlink communication from the base station; and performing the common downlink communication with the base station in the common frequency region by using a frequency resource indicated by the scheduling information, wherein the common downlink communication is communication between the base station and a plurality of terminals including the terminal.

公开(公告)号：US20210377883A1

公开(公告)日：2021-12-02

申请号：US17277061

申请日：2019-09-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sung Ik PARK ,  Heung Mook KIM ,  Nam Ho HUR

IPC: H04W56/00 ,  H04L5/00

Abstract: Disclosed are a method and an apparatus for transmitting and receiving a signal including cell information in a communication system. An operation method of a terminal comprises the steps of: receiving a first SS/PBCH block from a base station; receiving a second SS/PBCH block from the base station after receiving the first SS/PBCH block; and confirming information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block when a transmission beam of the first SS/PBCH block is the same as a transmission beam of the second SS/PBCH block. Therefore, the performance of a communication system can be improved.

公开(公告)号：US20210168807A1

公开(公告)日：2021-06-03

申请号：US16636587

申请日：2018-08-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sung Ik PARK ,  Heung Mook KIM ,  Nam Ho HUR

IPC: H04W72/04 ,  H04W72/12 ,  H04W76/27 ,  H04L27/26

Abstract: A method for transmitting and receiving slot setting information in a communication system is disclosed. An operating method of a UE comprises the steps of: receiving, from a base station, a first upper layer message including SFI for indicating a format of a slot; receiving, from the base station, DCI or a second upper layer message for indicating a use of a flexible symbol belonging to the slot set by the SFI; and determining the flexible symbol belonging to the slot as a DL symbol or a UL symbol on the basis of the second upper layer message or the DCI. Therefore, a performance of a communication system can be improved.

公开(公告)号：US20180175975A1

公开(公告)日：2018-06-21

申请号：US15576739

申请日：2013-08-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Sun UM ,  Sung Jin YOO ,  Hoi Yoon JUNG ,  Seung Keun PARK

IPC: H04L1/18 ,  H04W72/14 ,  H04W24/10 ,  H04W16/14

Abstract: An operating method of a communication node in a network supporting licensed and unlicensed bands is disclosed. An operation method of a base station comprises the steps of: transmitting a PDSCH to a UE in an unlicensed band; receiving an HARQ response to the PDSCH from the UE; and determining a size of a CW on the basis of a proportion of NACKs in HARQ responses. Therefore, a performance of a communication network can be improved.

公开(公告)号：US20180062806A1

公开(公告)日：2018-03-01

申请号：US15549413

申请日：2016-08-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sung Jin YOO ,  Jung Sun UM ,  Seung Keun PARK

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04L5/0048 ,  H04J11/0069 ,  H04L5/001 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/1469 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/1263

Abstract: A method and an apparatus for transmitting and receiving a signal in a communication network are disclosed. A method for operating UE supporting an unlicensed band comprises the steps of: receiving from a base station DMTC-related information including DMTC cycle and DMTC offset; checking DMTC section to which DRS is transmitted based on the DMTC-related information; and receiving from the base station the DRS using sub-frames apart from a sub-frame corresponding to the DRS cycle within the DMTC section. As a result, the performance of a communication network can be improved.

公开(公告)号：US20160261453A1

公开(公告)日：2016-09-08

申请号：US15013522

申请日：2016-02-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Sun UM ,  Kyu Min KANG ,  Jae Cheol PARK ,  Sung Jin YOO ,  Dong Hun LEE ,  Byung Jang JEONG ,  Hoi Yoon JUNG ,  Hyung Do CHOI ,  Sung Hyun HWANG

IPC: H04L27/26 ,  H04L1/18

CPC classification number: H04L27/2692 ,  H04L1/12 ,  H04L1/1812 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2656

Abstract: When a feature of the present invention is summarized, disclosed is a frame structure of transmitted and received data in a wireless communication system, including: a plurality of uplink subframes (UL) or downlink subframes (DL) for transmitting and receiving data; and a coexistence synchronization signal preamble for frequency coexistence among asynchronous cells.

Abstract translation: 当总结本发明的特征时，公开了一种无线通信系统中发送和接收数据的帧结构，包括：用于发送和接收数据的多个上行链路子帧（UL）或下行链路子帧（DL）; 以及用于异步小区之间的频率共存的共存同步信号前导码。

公开(公告)号：US20150229499A1

公开(公告)日：2015-08-13

申请号：US14599640

申请日：2015-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Jung Sun UM ,  Byung Jang JEONG ,  Jae Ick CHOI

IPC: H04L27/00

CPC classification number: H04L27/0006

Abstract: The present disclosure relate to a spectrum sensing method and a spectrum sensing device. The spectrum sensing method includes: (a) sampling a received signal: (b) calculating a first operation value relating to a strength of the received signal based on the sampled signal; (c) searching for a first frequency band having the largest correlation with an input signal based on the sampled signal; (d) calculating a first residual component signal by removing a signal component in the first frequency band from the received signal; (e) calculating a second operation value relating to a strength of the first residual component signal; and (f) determining whether the frequency band occupied in the received signal is present based on a relative value of the first operation value and the second operation value.

Abstract translation: 本公开涉及一种频谱感测方法和频谱感测装置。 频谱感测方法包括：（a）对接收信号进行采样;（b）基于采样信号计算与接收信号的强度有关的第一操作值; （c）基于采样信号搜索与输入信号具有最大相关性的第一频带; （d）通过从接收信号中去除第一频带中的信号分量来计算第一残差分量信号; （e）计算与第一残差分量信号的强度相关的第二运算值; 以及（f）基于第一操作值和第二操作值的相对值来确定接收信号中占用的频带是否存在。

公开(公告)号：US20140198836A1

公开(公告)日：2014-07-17

申请号：US13920516

申请日：2013-06-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sun Min LIM ,  Hoi Yoon JUNG ,  Sang Won KIM ,  Byung Jang JEONG

IPC: H04B1/10

CPC classification number: H03M7/3062

Abstract: Disclosed is a method for wideband spectrum sensing using compressive sensing, the method including: acquiring a sampling signal by applying a modulated wideband converter (MWC) to a received signal; and acquiring a restoration signal corresponding to the received signal by using a compressive sensing restoration algorithm from the sampling signal, and a mixing signal multiplied by the received signal at the time of applying the MWC, as a signal transformed from a first mixing signal having a periodic waveform, includes a second mixing signal to remove a partial frequency area from the received signal through the application of the MWC.

Abstract translation: 公开了一种使用压缩感测的宽带频谱感测的方法，该方法包括：通过将调制宽带转换器（MWC）应用于接收信号来获取采样信号; 以及通过使用来自采样信号的压缩感测恢复算法和在应用MWC时乘以接收信号的混合信号来获取与接收信号相对应的恢复信号，作为从具有 周期性波形包括通过应用MWC从接收信号中去除部分频率区域的第二混合信号。

公开(公告)号：US20240107553A1

公开(公告)日：2024-03-28

申请号：US18531212

申请日：2023-12-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sung Ik PARK ,  Heung Mook KIM ,  Nam Ho HUR

IPC: H04W72/23 ,  H04L1/1812

CPC classification number: H04W72/23 ,  H04L1/1812

Abstract: Disclosed are a method and an apparatus for transmitting or receiving feedback information in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, DCI #1 including scheduling information of PDSCH #1 and transmission resource information of HARQ response #1 with respect to PDSCH #1; receiving, from the base station, DCI #2 including scheduling information of PDSCH #2 and transmission resource information of HARQ response #2 with respect to PDSCH #2; and when the transmission resource information of HARQ response #1 is configured as undefined, transmitting, to the base station, HARQ response #1 and HARQ response #2 by using a resource indicated by the transmission resource information of HARQ response #2. Therefore, the performance of the communication system can be improved.

公开(公告)号：US20220061094A1

公开(公告)日：2022-02-24

申请号：US17299556

申请日：2020-02-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sung Ik PARK ,  Heung Mook KIM ,  Nam Ho HUR

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W72/08

Abstract: A method and an apparatus for transmitting/receiving a signal by using a variable band width in a communication system are disclosed. An operating method of a terminal comprises the steps of: receiving, from a base station, first configuration information about one or more guard bands of an unlicensed band; confirming the one or more guard bands configured in the unlicensed band on the basis of the first configuration information; and confirming a plurality of RB sets configured in the unlicensed band on the basis of the one or more guard bands. Therefore, performance of the communication system can be improved.