公开(公告)号：US20220393847A1

公开(公告)日：2022-12-08

申请号：US17830036

申请日：2022-06-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE

IPC: H04L5/14

Abstract: A method of a terminal may comprise: receiving, from a base station, configuration information of a guard band configured within a carrier bandwidth; determining a first transmission direction of a first subband configured in a higher frequency region from the guard band within the carrier bandwidth; determining a second transmission direction of a second subband configured in a lower frequency region from the guard band within the carrier bandwidth; determining a third transmission direction of the guard band based on the first transmission direction and the second transmission direction; and performing communication with the base station according to the third transmission direction in the guard band.

公开(公告)号：US20220174745A1

公开(公告)日：2022-06-02

申请号：US17538907

申请日：2021-11-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Hoon LEE ,  Jae Heung KIM ,  Sung Cheol CHANG

IPC: H04W74/08

Abstract: An operation method of a base station in a communication system may comprise: generating first RACH configuration information for a normal terminal; generating second RACH configuration information for a RedCap terminal; transmitting a message including the first RACH configuration information and the second RACH configuration information; and performing a random access procedure with a first terminal based on the message, wherein a terminal type of the first terminal is identified based on the first RACH configuration information and the second RACH configuration information, and the terminal type is the normal terminal or the RedCap terminal.

公开(公告)号：US20220104258A1

公开(公告)日：2022-03-31

申请号：US17426490

申请日：2020-02-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE

IPC: H04W74/08 ,  H04W72/04 ,  H04L27/26

Abstract: A method by which a terminal operating in an unlicensed band transmits a signal includes the steps of: receiving, from a base station, configuration information about a carrier; receiving configuration information for configuring N (where N is an integer) guard band(s) for some frequency domains of the carrier; and transmitting a signal to the base station by using a first frequency domain of a bandwidth part belonging to the carrier, wherein the first frequency domain can be a domain excluding the N guard band(s) from the frequency domain of the bandwidth part.

公开(公告)号：US20200383095A1

公开(公告)日：2020-12-03

申请号：US16880833

申请日：2020-05-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE

IPC: H04W72/04 ,  H04L1/18

Abstract: An operation method of a terminal may comprise receiving information on one CG configuration for uplink transmission from a base station; obtaining common time domain resource allocation information for combinations of RB sets based on the information on the one CG configuration; obtaining frequency domain resource allocation information for each of the combinations of the RB sets based on the information on the one CG configuration; determining a number of PRBs to which an uplink channel is mapped based on the frequency domain resource allocation information corresponding to one combination of the combinations; determining a TBS based on the common time domain resource allocation information and the number of PRBs; and transmitting a TB having the TBS to the base station within the one combination through the uplink channel according to the common time domain resource allocation information and the frequency domain resource allocation information.

公开(公告)号：US20200280971A1

公开(公告)日：2020-09-03

申请号：US16803489

申请日：2020-02-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE

IPC: H04W72/04 ,  H04W74/08

Abstract: Disclosed are methods and apparatuses for transmitting and receiving control information in a communication system supporting unlicensed band communication. An operation method of a terminal may comprise receiving, from a base station, first configuration information of a CORESET and second configuration information of a search space associated with the CORESET; receiving, from the base station, third configuration information indicating one or more PDCCH monitoring resource sets associated with the CORESET and the search space; and performing a PDCCH monitoring operation on the one or more PDCCH monitoring resource sets. Therefore, the performance of the communication system can be improved.

公开(公告)号：US20200280465A1

公开(公告)日：2020-09-03

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 ,  H04W80/08 ,  H04L27/26

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.

公开(公告)号：US20190053218A1

公开(公告)日：2019-02-14

申请号：US16058187

申请日：2018-08-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon KIM ,  Sung Hyun MOON ,  Jung Hoon LEE

IPC: H04W72/04 ,  H04W76/27 ,  H04L1/18 ,  H04L5/00

Abstract: An operation method of a terminal for transmitting uplink control information (UCI) to a base station by multiplexing two or more UCIs in a single physical uplink control channel (PUCCH) includes: determining a first sequence corresponding to a value of a second UCI (UCI2) when the UCI2 is generated before completing transmission of a first UCI (UCI1) to the base station; modulating the first sequence by applying a modulation symbol corresponding to a value of the UCI1, and applying a orthogonal cover code (OCC) to the modulated first sequence to generate a second sequence; and transmitting the second sequence in at least one symbol position of symbols constituting the PUCCH.

公开(公告)号：US20180278380A1

公开(公告)日：2018-09-27

申请号：US15934001

申请日：2018-03-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Cheul Soon KIM ,  Min Hyun KIM ,  Ji Hyung KIM ,  Sung Hyun MOON ,  Ju Ho PARK ,  Jung Hoon LEE ,  Tae Joong KIM

IPC: H04L1/18 ,  H04L1/16

CPC classification number: H04L1/1861 ,  H04L1/08 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1858 ,  H04L5/001 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0064 ,  H04L5/0091 ,  H04W72/0413

Abstract: An operation method of a terminal in a communication system may comprise receiving a downlink data channel from a base station in a slot #n or a slot #(n−l); receiving a slot format indicator (SFI) indicating a format of a slot #(n+k) in which an uplink control information (UCI) is to be transmitted, from the base station in the slot #n; and transmitting the UCI including a hybrid automatic repeat request (HARQ) response for the downlink data channel to the base station in the slot #(n+k). Here, each of n and k may be an integer equal to or greater than 0, and l may be an integer equal to or greater than 1.