公开(公告)号：US20160143008A1

公开(公告)日：2016-05-19

申请号：US14941536

申请日：2015-11-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Anseok LEE ,  Sung Cheol CHANG ,  Soojung JUNG ,  Seungkwon CHO

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/048

Abstract: Disclosed are a method and apparatus for transmitting information in a low latency mobile communication system. Delay time requests are obtained from terminals, and time intervals for transmitting control information for the respective terminals are determined on the basis of the delay time requests. Control information is transmitted to the respective terminals according to the determined time intervals.

Abstract translation: 公开了一种在低延迟移动通信系统中传输信息的方法和装置。 从终端获得延迟时间请求，并且基于延迟时间请求确定用于发送各个终端的控制信息的时间间隔。 根据确定的时间间隔将控制信息发送到各个终端。

公开(公告)号：US20160095114A1

公开(公告)日：2016-03-31

申请号：US14865968

申请日：2015-09-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung KIM ,  Jae Sun CHA ,  Chanho YOON ,  Seung-Kwon BAEK ,  Jae Joon PARK ,  Kwang Jae LIM ,  Sung Cheol CHANG

IPC: H04W72/04

CPC classification number: H04W74/0816

Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band:The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.

Abstract translation: 提供了一种用于通过发送器发送具有通过非许可频带的信道的周期性的第一数据的方法：发送机调整第一数据的发送定时和用于信道占用的清除信道评估（CCA）定时中的至少一个 这个频道。 发射机通过在CCA定时在信道上执行CCA来确定信道是否可能被占用。 当确定可以占用信道时，发射机以第一数据的发送定时通过信道发送第一数据。

公开(公告)号：US20140073372A1

公开(公告)日：2014-03-13

申请号：US14025305

申请日：2013-09-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun LEE ,  Mi Young YUN ,  Seok Ki KIM ,  Won-Ik KIM ,  Chul Sik YOON ,  Sung Cheol CHANG

IPC: H04W4/10

CPC classification number: H04W4/10 ,  H04W56/005 ,  H04W74/0841

Abstract: A method and apparatus for transmitting a synchronization signal in a talk-around direct communication network is provided. The method includes: determining one of a plurality of second windows included in a first window as a synchronization reception window; selecting one of a plurality of synchronization slots included in the second windows as a first synchronization slot; transmitting a first synchronization signal through the first synchronization slot included in the second windows, excluding the synchronization reception window; detecting a second synchronization signal transmitted from other terminals using the first synchronization slot included in the synchronization reception window; and determining that a collision from amongst the synchronization signals has occurred based on the detection result.

Abstract translation: 提供了一种用于在通话对话直接通信网络中发送同步信号的方法和装置。 该方法包括：将包括在第一窗口中的多个第二窗口中的一个确定为同步接收窗口; 选择包括在第二窗口中的多个同步槽中的一个作为第一同步槽; 通过除了同步接收窗口之外的包括在第二窗口中的第一同步时隙发送第一同步信号; 使用包括在同步接收窗口中的第一同步时隙检测从其他终端发送的第二同步信号; 并且基于检测结果确定已经发生了来自同步信号之间的冲突。

公开(公告)号：US20250024516A1

公开(公告)日：2025-01-16

申请号：US18900086

申请日：2024-09-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC: H04W74/0833

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：US20240430930A1

公开(公告)日：2024-12-26

申请号：US18826824

申请日：2024-09-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon KIM ,  Jae Heung KIM ,  Sung Hyun MOON ,  Jung Hoon LEE ,  Sung Cheol CHANG

IPC: H04W74/00 ,  H04W24/10 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0833

Abstract: An operation method of a terminal in a communication system may comprise receiving first random access (RA) configuration information and second RA configuration information from a base station; transmitting a Msg1 to the base station based on the second RA configuration information; receiving a Msg2, which is a response to the Msg1, from the base station; and repeatedly transmitting a Msg3 K times to the base station.

公开(公告)号：US20240414515A1

公开(公告)日：2024-12-12

申请号：US18808908

申请日：2024-08-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Cheol CHANG ,  Jae Heung KIM

IPC: H04W8/00 ,  H04W68/00 ,  H04W74/0833 ,  H04W88/04 ,  H04W92/18

Abstract: An operation method of a relay terminal for relaying radio communication between a base station and a remote terminal may comprise: recognizing a relay request of the remote terminal for system information provided by the base station; acquiring the system information from the base station; and transmitting the system information to the remote terminal.

公开(公告)号：US20240314612A1

公开(公告)日：2024-09-19

申请号：US18599151

申请日：2024-03-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Seo PARK ,  Yong Jin KWON ,  Yun Joo KIM ,  Han Jun PARK ,  Jung Bo SON ,  An Seok LEE ,  Yu Ro LEE ,  Sung Cheol CHANG ,  Heesoo LEE

IPC: H04W24/10 ,  H04W36/00

CPC classification number: H04W24/10 ,  H04W36/0085

Abstract: A method of a terminal may comprise: receiving, from a serving cell, a first message including measurement report configuration information; in response to transmission of a measurement report message being triggered based on the first message, generating a measurement report message; and in response to a measurement report message transmission condition configured by the first message being satisfied, transmitting the measurement report message to the serving cell.

公开(公告)号：US20230199877A1

公开(公告)日：2023-06-22

申请号：US18084907

申请日：2022-12-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Cheol CHANG

IPC: H04W76/14 ,  H04W76/11 ,  H04W72/25

CPC classification number: H04W76/14 ,  H04W76/11 ,  H04W72/25 ,  H04W88/04

Abstract: An operation method of a first terminal for establishing a relay connection may comprise: generating a PC5-RAL PDU header for the first terminal, the PC5-RAL PDU header including or not including a remote terminal identifier and a connection identifier; mapping the generated PC5-RAL PDU header to a PC5-radio link control (RLC) channel; and generating a PC5-RAL PDU by adding data to the PC5-RAL PDU header, and transmitting the generated PC5-RAL PDU to a corresponding second terminal through the PC5-RLC channel, wherein the first terminal is a remote terminal or a relay terminal, and the second terminal is a relay terminal or a remote terminal.

公开(公告)号：US20230189085A1

公开(公告)日：2023-06-15

申请号：US18081111

申请日：2022-12-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Seo PARK ,  Yong Jin KWON ,  Yun Joo KIM ,  An Seok LEE ,  Yu Ro LEE ,  Heesoo LEE ,  Sung Cheol CHANG

IPC: H04W36/00

CPC classification number: H04W36/0058 ,  H04W36/00837 ,  H04W36/00835 ,  H04W36/0061

Abstract: An operation method of a terminal may comprise: receiving, from a serving base station, measurement configuration information and measurement prediction configuration information; measuring signal strengths of the serving base station and a neighboring base station according to the measurement configuration information; predicting signal strengths of the serving base station and the neighboring base station based on a result of measuring the signal strengths of the serving base station and the neighboring base station, according to the measurement prediction configuration information; and transmitting, to the serving base station, a report message including the predicted signal strengths of the serving base station and the neighboring base station according to the measurement prediction configuration information.

公开(公告)号：US20200336960A1

公开(公告)日：2020-10-22

申请号：US16848383

申请日：2020-04-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Seo PARK ,  Yun Joo KIM ,  Eunkyung KIM ,  Tae Joong KIM ,  An Seok LEE ,  Yu Ro LEE ,  Sung Cheol CHANG

IPC: H04W36/08 ,  H04W80/10 ,  H04L1/16 ,  H04W76/12 ,  H04W8/08 ,  H04W48/16

Abstract: An operation method of a terminal performing handover in a mobile communication system may comprise transmitting packet data convergence protocol (PDCP) downlink reception status information of the terminal and information on a target base station to a source base station; receiving downlink data from a user plane function (UPF) via the source base station based on a first tunnel configured between the source base station and the UPF; receiving downlink data from the UPF via the target base station based on a second tunnel configured by the UPF between the target base station and the UPF by using the PDCP downlink reception status information and the information on the target base station, which are transferred from the source base station; and discarding duplicated-received protocol data units (PDUs) from the source base station and the target base station, and reordering remaining PDUs.