公开(公告)号：US11811534B2

公开(公告)日：2023-11-07

申请号：US17678882

申请日：2022-02-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon Kim ,  Gi Yoon Park ,  Ok Sun Park

IPC: H04W72/04 ,  H04L1/1812 ,  H04B7/0456 ,  H04W72/1273 ,  H04W72/1268 ,  H04W72/21 ,  H04W72/50

CPC classification number: H04L1/1819 ,  H04B7/0456 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/21 ,  H04W72/535

Abstract: Feedback methods for repetitive uplink transmissions in a communication system are disclosed. An operation method of a terminal may comprise receiving DL data #1 from a base station through a DL data channel #1; receiving DL data #2 from the base station through a DL data channel #2; and when each of a UL control channel #1 on which an HARQ response #1 for the DL data #1 is to be transmitted and a UL control channel #2 on which an HARQ response #2 for the DL data #2 is to be transmitted overlaps with a UL data channel assigned by the base station, transmitting the HARQ response #1 and the HARQ response #2 to the base station through the UL data channel. Therefore, the performance of the communication system can be improved.

公开(公告)号：US11791881B2

公开(公告)日：2023-10-17

申请号：US17405133

申请日：2021-08-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gi Yoon Park ,  Seok Ki Kim ,  Ok Sun Park ,  Eun Jeong Shin ,  Jae Sheung Shin ,  Jin Ho Choi

IPC: H04B7/06 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04B7/0634 ,  H04W74/008 ,  H04W74/0841

Abstract: An operation method of a terminal in a communication system may comprise: receiving, from a base station, basis preamble information and linear combination information; generating a superposed preamble by using the basis preamble information and the linear combination information; transmitting, to the base station, a first message including the generated superposed preamble; and receiving, from the base station, a second message that is a response signal for the first message.

公开(公告)号：US11223448B2

公开(公告)日：2022-01-11

申请号：US17159543

申请日：2021-01-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ok Sun Park ,  Gi Yoon Park ,  Seok Ki Kim ,  Woo Ram Shin ,  Tae Joong Kim ,  Jae Sheung Shin ,  Young Ha Lee

IPC: H04L1/00

Abstract: An operation method of a first communication node in a communication system includes receiving a signal from a second communication node; demodulating the signal to obtain LLR values; calculating a first codeword based on the LLR values; selecting error patterns from among all error patterns based on Hamming weights; generating second codewords by applying the first codeword to each of the selected error patterns; and determining a codeword having a highest similarity to the first codeword among the second codewords as an optimal codeword.

公开(公告)号：US11153867B2

公开(公告)日：2021-10-19

申请号：US16411306

申请日：2019-05-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo Ko ,  Gi Yoon Park ,  Ok Sun Park ,  Seung Kwon Baek ,  Woo Ram Shin ,  Chan Ho Yoon

IPC: H04W72/04 ,  H04L1/00 ,  H04W72/12 ,  H04L1/18

Abstract: A method and apparatus for transmitting and receiving signal in communication system. A method of a base station includes: configuring frequency spreading sequences each of which corresponds to a transmission starting time point; configuring time spreading sequences each of which corresponds to a terminal; and transmitting information on the frequency spreading sequences and the time spreading sequences to a plurality of terminals, wherein one of the frequency spreading sequences and one of the time spreading sequences are assigned to each of the plurality of terminals.