公开(公告)号：US10136287B2

公开(公告)日：2018-11-20

申请号：US15206420

申请日：2016-07-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung Lee ,  Moon Sik Lee ,  Young Hoon Kim ,  Hoo Sung Lee ,  Jae Woo Park ,  Gyung Chul Shin ,  Ik Jae Chun ,  Jee Yon Choi ,  Dong Seung Kwon

IPC: H04W4/80 ,  H04W56/00 ,  H04B7/0413 ,  H04B5/00 ,  H04L12/40 ,  H04L29/06 ,  H04L29/08 ,  H04L12/70 ,  H04L1/00

Abstract: A method and apparatus for close-proximity communication. The close-proximity communication method performed by a transmitter includes generating a physical layer (PHY) frame including a PHY preamble, a frame header, and a payload field, and transmitting the generated PHY frame to a receiver, in which the frame header may include a media access control (MAC) header, a header check sequence (HCS), and a Reed-Solomon (RS) parity bit.

公开(公告)号：US11617145B2

公开(公告)日：2023-03-28

申请号：US17096182

申请日：2020-11-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chan Bok Jeong ,  Hoo Sung Lee ,  Moon Sik Lee ,  Jae Woo Park ,  Jae Seung Lee

IPC: H04W80/02 ,  H04W56/00 ,  H04L5/00 ,  H04W72/1263 ,  H04W64/00 ,  H04W72/0446

Abstract: A timing control method, performed by a first DU including a processor and a modem in a base station supporting function-splitting, includes obtaining, by the processor, first time information from a CU included in the base station; obtaining, by the processor, synchronization information with a first system based on the first time information; identifying, by the processor, a change time point of an SFN based on the synchronization information; generating, by the processor, a first timing control signal including a signal indicating a changed SFN and a first tick signal having a same periodicity as a change periodicity of the SFN when the SFN is changed; and providing, by the processor, the first timing control signal to the modem.

公开(公告)号：US11546124B2

公开(公告)日：2023-01-03

申请号：US17064994

申请日：2020-10-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung Lee ,  Moon Sik Lee ,  Jae Woo Park ,  Jee Yon Choi ,  Young Hoon Kim ,  Ju Ho Park ,  Hoo Sung Lee ,  Young Il Jeon ,  Chan Bok Jeong ,  Hyung Sik Ju ,  Ik Jae Chun ,  Il Gyu Kim

IPC: H04W72/04 ,  H04W88/08 ,  H04L5/00

Abstract: Disclosed are a method and an apparatus for communication using fronthaul interfaces. An operation method of a first communication node includes transmitting a section type 8 message #1 including numerology-related information #1; transmitting a section type 9 message #1 including channel information of each of one or more second communication nodes indicated by the section type 8 message #1 and the numerology related information #1, transmitting a section type 8 message #2 including numerology-related information #2 other than the numerology-related information #1; and transmitting a section type 9 message #2 including channel information of each of one or more third communication nodes indicated by the section type 8 message #2 and the numerology-related information #2.

公开(公告)号：US11483105B2

公开(公告)日：2022-10-25

申请号：US16953880

申请日：2020-11-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoo Sung Lee ,  Jae Woo Park ,  Moon Sik Lee ,  Chan Bok Jeong ,  Jee Yon Choi

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: A baseband signal generation method includes mapping frequency-domain data for a plurality of component carriers to subcarrier resources; performing a frequency shift on the frequency domain-data allocated to the subcarrier resources; generating a time-domain signal by performing IFFT on the frequency-shifted frequency-domain data using a single IFFT block; and generating a time-domain baseband signal by adding a CP to the time-domain signal.

公开(公告)号：US10278054B2

公开(公告)日：2019-04-30

申请号：US15134595

申请日：2016-04-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jee Yon Choi ,  Jae Woo Park ,  Moon Sik Lee ,  Jae Seung Lee ,  Young Hoon Kim ,  Gyung Chul Shin ,  Hoo Sung Lee ,  Ik Jae Chun ,  Dong Seung Kwon

IPC: H04W8/00

Abstract: A method and apparatus for wireless communication in a wireless personal area network (WPAN) communication system. A wireless communication method to be performed by a first wireless communication device includes broadcasting a beacon, receiving an association request signal from a second wireless communication device receiving the beacon, and performing association with the second wireless communication device after receiving the association request signal, in which the first wireless communication device may suspend beacon transmission after the association with the second wireless communication device is established.

公开(公告)号：US10708279B2

公开(公告)日：2020-07-07

申请号：US15390826

申请日：2016-12-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung Lee ,  Moon-Sik Lee ,  Young-Hoon Kim ,  Jaewoo Park ,  Gyung-chul Shin ,  Hoo Sung Lee ,  Ik Jae Chun ,  Jeeyon Choi

IPC: H04L29/06

Abstract: A method and apparatus for transmitting data. Data to be transmitted is an aggregated frame including a first subframe and a second subframe each including information used to verify integrity of each subframe, and an apparatus receiving the data verifies integrity of a subframe based on the information used to verify the integrity.

公开(公告)号：US10193654B2

公开(公告)日：2019-01-29

申请号：US15364389

申请日：2016-11-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jee Yon Choi ,  Jae Woo Park ,  Moon Sik Lee ,  Young Hoon Kim ,  Gyung Chul Shin ,  Jae Seung Lee ,  Hoo Sung Lee ,  Ik Jae Chun

IPC: H04L1/00 ,  H04B7/26

Abstract: A frame transmission method and a wireless communication apparatus performing the same. A frame transmission method performed by a first wireless communication apparatus includes receiving subframe unit length information of a second wireless communication apparatus from the second wireless communication apparatus, determining a subframe unit length of the first wireless communication apparatus based on the received subframe unit length information, generating a plurality of subframes based on the determined subframe unit length, and transmitting a frame in which the generated subframes are aggregated to the second wireless communication apparatus, and wherein, when at least one of the subframes includes a padding, a length of the padding allows a length of the at least one of the subframes including the padding to be a multiple of a natural number of the determined subframe unit length.

公开(公告)号：US09887706B2

公开(公告)日：2018-02-06

申请号：US14736748

申请日：2015-06-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hoo Sung Lee ,  Ik Jae Chun ,  Moon-Sik Lee

IPC: H04J3/24 ,  H04B15/00 ,  H03M13/09 ,  H04L1/00

CPC classification number: H03M13/096 ,  H03M13/09 ,  H04L1/0001 ,  H04L1/001 ,  H04L1/007 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/08

Abstract: A method of transmitting a frame header in wireless communication includes: forming a frame header by integrating a MAC header and a PHY header; repeatedly transmitting the frame header multiple times to a scrambler; and generating, by the scrambler, data by scrambling the repeatedly transmitted frame header with a specific code.