公开(公告)号：US20200343957A1

公开(公告)日：2020-10-29

申请号：US16857864

申请日：2020-04-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo KO ,  Seok Ki KIM ,  Seung Kwon BAEK ,  Woo Ram SHIN ,  Chan Ho YOON

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04L1/00 ,  H04B17/336

Abstract: An operation method of a terminal may comprise receiving, from a base station, information of target transmission points targeted for a report of first channel state information (CSI) among the plurality of transmission points; receiving a first CSI-reference signal (CSI-RS) from the target transmission points; transmitting the first CSI determined based on the first CSI-RS to the base station; receiving, from the base station, information on a first transmission point determined based on the first CSI; receiving, from the first transmission point indicated by the information on the first transmission point, a second CSI-RS; receiving, from the base station, information on a requirement; and transmitting, to the base station, a second CSI including a transmission parameter for achieving the requirement.

公开(公告)号：US20180123673A1

公开(公告)日：2018-05-03

申请号：US15800060

申请日：2017-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seok Ki KIM ,  Seung Kwon BAEK

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0682 ,  H04B7/0695 ,  H04B7/086 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0053 ,  H04L2027/0095

Abstract: A multi-subcarrier based radio frame transmission method of a communication node in a mobile communication system may comprise configuring at least one beam sweeping region for beam sweeping in a plurality of subframes constituting a radio frame; arranging a broadcast channel (BCH) or a feedback channel (FBCH) together with a plurality of preambles (PAs) in the at least one beam sweeping region; and transmitting the radio frame in which the at least one beam sweeping region is configured.

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。