公开(公告)号：US20220271778A1

公开(公告)日：2022-08-25

申请号：US17675010

申请日：2022-02-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gi Yoon PARK ,  Ok Sun PARK ,  Seok Ki KIM ,  Eun Jeong SHIN ,  Gweon Do JO

IPC: H03M13/29 ,  H03M13/15 ,  H03M13/11

Abstract: An operation method of a receiving node may include performing a decoding operation for calculating first and second output transform values corresponding to first and second unit output nodes in each of a plurality of operation units constituting the polar decoder, based on first and second input transform values corresponding to first and second unit input nodes, and the decoding operation may include setting initial values of first and second variables for calculating the first output transform value; performing an iterative loop operation for updating the first and second variables; and calculating the first output transform value based on values of the first and second variables updated until a time when the iterative loop operation is terminated, wherein the iterative loop operation is terminated without performing iterations in which the first and second variables are determined not to be updated among a plurality of iterations.

公开(公告)号：US20220078840A1

公开(公告)日：2022-03-10

申请号：US17354144

申请日：2021-06-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ok Sun PARK ,  Seok Ki KIM ,  Gi Yoon PARK ,  Eun Jeong SHIN ,  Jae Sheung SHIN ,  Jin Ho CHOI

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

Abstract: Disclosed are methods and apparatuses for transmitting data using a random access procedure in a communication system. An operation method of a terminal in a communication system includes transmitting a first MsgA including an RA preamble #i and a payload to a base station; receiving, from the base station, a MsgB including information indicating that an RA preamble #k is reserved; and transmitting a second MsgA including the RA preamble #k and data to the base station in a preamble reservation period associated with the RA preamble #k.

公开(公告)号：US20220094413A1

公开(公告)日：2022-03-24

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 ,  H04W74/00 ,  H04W74/08

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：US20230006767A1

公开(公告)日：2023-01-05

申请号：US17747298

申请日：2022-05-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seok Ki KIM ,  Ok Sun PARK ,  Gi Yoon PARK ,  Eun Jeong SHIN ,  Jae Sheung SHIN ,  Jin Ho CHOI

IPC: H04L1/00 ,  H04L5/00

Abstract: An operation method of a terminal may include: receiving, from a base station, an addition value KN, information on linear combination coefficient matrices for respective numbers of transport blocks, and configuration information on each linear combination coefficient matrix; dividing a source block into M transport blocks; selecting one linear combination coefficient matrix among the linear combination coefficient matrices based on M; generating (M+KN) network coding blocks by performing network coding on the M transport blocks with the selected one linear combination coefficient matrix; and transmitting, to the base station, messages each including one network coding block among the network coding blocks, a control index of the one linear combination coefficient matrix, and a preamble.

公开(公告)号：US20140037028A1

公开(公告)日：2014-02-06

申请号：US13826241

申请日：2013-03-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun Jeong SHIN ,  Dae Ho KIM

IPC: H04L7/04

CPC classification number: H04L7/042 ,  H04L25/0202 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

Abstract: Disclosed is an apparatus and method for detecting a code. The code detecting apparatus may include a detector to detect symbol synchronous timing information associated with a PSS code from a first signal received during a predetermined first period, a compensator to extract and buffer the PSS code and the SSS code based on the symbol synchronous timing information detected from a second signal received during a predetermined second period, and compensate for a frequency offset with respect to the buffered PSS code, and a processor to re-detect the symbol synchronous timing information based on the PSS code in which the frequency offset is compensated for, and extract the buffered SSS code using the re-detected symbol synchronous timing information.

Abstract translation: 公开了一种用于检测代码的装置和方法。 代码检测装置可以包括检测器，用于根据在预定的第一周期期间接收的第一信号来检测与PSS代码相关联的符号同步定时信息，补偿器，用于基于符号同步定时信息提取和缓冲PSS代码和SSS代码 从在预定的第二周期期间接收到的第二信号中检测出，并且相对于缓冲的PSS码补偿频率偏移，以及处理器，用于基于补偿了频率偏移的PSS码重新检测符号同步定时信息 并使用重新检测的符号同步定时信息提取缓冲的SSS码。