公开(公告)号：US11751215B2

公开(公告)日：2023-09-05

申请号：US17522411

申请日：2021-11-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun Moon ,  Cheul Soon Kim ,  Jung Hoon Lee ,  Min Hyun Kim ,  Ji Hung Kim ,  Ju Ho Park ,  Choong Il Yeh ,  Jun Hwan Lee

IPC: H04W72/02 ,  H04W72/23 ,  H04B7/024

CPC classification number: H04W72/23 ,  H04B7/024

Abstract: A method for receiving a PDCCH by a terminal in a mobile communication system may comprise the steps of: receiving a first PDCCH including first DCI from a base station through a first PDCCH search space; and receiving a second PDCCH including second DCI from the base station through a second PDCCH search space, wherein the first DCI and second DCI are for scheduling the same PDSCH for the same TB or TBs associated with the same HARQ process, are for scheduling different PDSCHs for the same TB or TBs associated with the same HARQ process, or are for scheduling different PDSCHs for different TBs or TBs associated with different HARQ processes. In addition, the first DCI and second DCI may be received from the base station within a time window.

公开(公告)号：US11678284B2

公开(公告)日：2023-06-13

申请号：US17232344

申请日：2021-04-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon Kim ,  Jae Heung Kim ,  Sung Hyun Moon ,  Jung Hoon Lee ,  Sung Cheol Chang

IPC: H04W56/00 ,  H04W80/02 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W56/0015 ,  H04W56/005 ,  H04W56/009 ,  H04W72/0446 ,  H04W72/23 ,  H04W80/02

Abstract: An operation method of a first terminal, for synchronized operations according to time-sensitive networking, may comprise: receiving information on a reference time from a base station; obtaining an offset of the first terminal with respect to the reference time or information for deriving the offset, and deriving the offset from the information for deriving the offset; determining a timing at which uplink transmission is performed by reflecting the offset to the reference time; and performing the uplink transmission at the determined timing.

公开(公告)号：US11310798B2

公开(公告)日：2022-04-19

申请号：US16791616

申请日：2020-02-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon Kim ,  Sung Hyun Moon ,  Jung Hoon Lee

IPC: H04L12/28 ,  H04W72/04 ,  H04W72/08 ,  H04W74/08 ,  H04J1/16

Abstract: Disclosed are a measurement method and a measurement apparatus for supporting mobility in a communication system. An operation method of a terminal may comprise receiving, from a base station, control information including first information indicating one or more physical uplink shared channel (PUSCH) interlaces configured in an unlicensed band; identifying frequency resources corresponding to the one or more PUSCH interlaces; and transmitting a PUSCH to the base station using the frequency resources of the unlicensed band. Thus, the performance of the communication system can be improved.

公开(公告)号：US11139937B2

公开(公告)日：2021-10-05

申请号：US16475828

申请日：2018-01-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon Kim ,  Jun Hwan Lee ,  Jung Hoon Lee ,  Ji Hyung Kim ,  Sung Hyun Moon ,  Ju Ho Park ,  Tae Joong Kim ,  Min Hyun Kim

IPC: H04L5/00 ,  H04W72/04

Abstract: The present invention relates to an uplink control information transmission method and device which can improve channel estimation performance of a base station. A terminal operation method for transmitting uplink control information to a base station, according to an embodiment of the present invention, comprises the steps of: receiving, from the base station, resource location information for transmission of a UCI channel; mapping UCI to at least one symbol on the basis of the resource location information, and mapping a reference signal in consideration of frequency selectivity characteristics and time selectivity characteristics of a wireless channel; and transmitting, to the base station, a subframe including the at least one symbol.

公开(公告)号：US11121891B2

公开(公告)日：2021-09-14

申请号：US16804865

申请日：2020-02-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon Kim ,  Sung Hyun Moon ,  Jung Hoon Lee

IPC: H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W80/08

Abstract: An operation method of a terminal for transmitting a sounding reference signal (SRS) to a base station in a wireless communication system may comprise receiving a higher layer message including information on a position of an SRS resource for transmission of the SRS from the base station; receiving a trigger signal from the base station, the trigger signal triggering the transmission of the SRS and including index information of the position of the SRS resource; performing a channel sensing operation on a radio resource indicated by the information on the positions of the SRS resource and the index information; and transmitting the SRS to the base station based on a result of the channel sensing.