公开(公告)号：US20240147262A1

公开(公告)日：2024-05-02

申请号：US18448652

申请日：2023-08-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung-Sun UM ,  Hoi-Yoon JUNG ,  Seok-Ki AHN ,  Sung-Jun AHN

IPC: H04W24/02 ,  H04W48/14

CPC classification number: H04W24/02 ,  H04W48/14

Abstract: Disclosed herein is a method for determining network parameters. The method includes receiving factory equipment traffic information, unlicensed frequency characteristic information, and factory equipment characteristic information and determining network parameters by taking into account at least one of the factory equipment traffic information, the unlicensed frequency characteristic information, or the factory equipment characteristic information, or a combination thereof, and the network parameters may include at least one of channel access parameters, unlicensed bands/channels, or client grouping, or a combination thereof.

公开(公告)号：US20240032071A1

公开(公告)日：2024-01-25

申请号：US18297523

申请日：2023-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seok-Ki AHN ,  Sung-Ik PARK ,  Sun-Hyoung KWON ,  Sung-Jun AHN ,  Jung-Sun UM ,  Hoi-Yoon JUNG

IPC: H04W72/30 ,  H04W72/12

CPC classification number: H04W72/30 ,  H04W72/12 ,  H04L12/189

Abstract: Disclosed herein is a method for time-division transmission of heterogeneous physical-layer signals. The method may include setting time-division-related information and alternately transmitting heterogeneous physical-layer signals to a terminal over the same frequency resource based on the time-division-related information.

公开(公告)号：US20210306119A1

公开(公告)日：2021-09-30

申请号：US17214482

申请日：2021-03-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae-Hyun SEO ,  Sung-Ik PARK ,  Seok-Ki AHN ,  Jae-Young LEE

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04W72/04

Abstract: Disclosed herein are a transmission apparatus, a reception apparatus and a transmission/reception method for an OFDM-based broadcasting system. The transmission apparatus includes multiple transmission frame generation units for generating multiple transmission frames from transmission data, an extended frame combination unit for generating an extended frame by combining the multiple transmission frames so that the multiple transmission frames are adjacent to each other based on a frequency, an extended OFDM modulation unit for modulating the extended frame and then generating a modulated signal, and a frequency up-conversion unit for performing frequency up-conversion on the modulated signal and generating a transmission signal, wherein each of the transmission frame generation units includes a data input unit for receiving transmission data, a channel-encoding unit for encoding the received transmission data and generating encoded data, and a framing and interleaving unit for framing and interleaving the encoded data and generating a transmission frame.

公开(公告)号：US20200304246A1

公开(公告)日：2020-09-24

申请号：US16823322

申请日：2020-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seok-Ki AHN ,  Sung-Ik PARK ,  Jae-Hyun SEO

IPC: H04L1/18 ,  H04W72/00 ,  H04W4/06 ,  H04L1/00 ,  H04W76/18

Abstract: Disclosed herein are a method of retransmission for downlink transmission of a wireless communication system and an apparatus for the same. The method includes receiving multiple feedback signals corresponding to a transmission failure from multiple terminals corresponding to point-to-multipoint transmission, generating retransmission data in response to the multiple feedback signals, and transmitting the retransmission data to the multiple terminals.