公开(公告)号：US20140161215A1

公开(公告)日：2014-06-12

申请号：US13965652

申请日：2013-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jun-Woo KIM ,  Young-Jo Bang ,  Kyung-Yeol Sohn ,  Se-Young Cho ,  Youn-Ok Park

IPC: H04L7/00

CPC classification number: H04L7/0016 ,  H04B7/10 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2688 ,  H04L27/2691 ,  H04L2027/0026

Abstract: Provided are a device and method for estimating carrier frequency offset of OFDM signals transmitted and received through a plurality of polarized antennas that may accurately estimate carrier frequency offset used for carrier frequency synchronization acquisition when there is interference between polarized waves.

Abstract translation: 提供了一种用于估计通过多个极化天线发送和接收的OFDM信号的载波频率偏移的装置和方法，当偏振波之间存在干扰时，可以精确地估计用于载波频率同步采集的载波频率偏移。

公开(公告)号：US20140187278A1

公开(公告)日：2014-07-03

申请号：US14011031

申请日：2013-08-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young-Jin MOON ,  Jun-Woo KIM ,  Youn-Ok PARK

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B10/2581 ,  H04W88/06

Abstract: Provided are a preamble transmission device of a multi-mode supporting base station and a preamble detecting device of a multi-mode supporting user terminal. Selecting of the preamble signal is driven by the user terminal capable of supporting multi-modes, which contributes to smooth services from a user's viewpoint, and to effective use of the limited radio resources from an operator's viewpoint.

Abstract translation: 提供了多模式支持用基站的前导码发送装置和多模式支持用户终端的前同步码检测装置。 前导码信号的选择由能够支持多模式的用户终端驱动，这有助于从用户的角度来平滑的服务，并且有效地利用来自运营商的观点的有限的无线电资源。

公开(公告)号：US20170181193A1

公开(公告)日：2017-06-22

申请号：US15381960

申请日：2016-12-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyeong Sook PARK ,  IL GYU KIM ,  Jun-Woo KIM

IPC: H04W74/08 ,  H04W16/28 ,  H04B17/318

CPC classification number: H04B17/318 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W74/004

Abstract: Disclosed herein are an apparatus and a method for receiving uplink data to determine whether to use a reception beam group in reception of the uplink data on the basis of a preamble for a random access or a CQI included in a feedback.

公开(公告)号：US20160112889A1

公开(公告)日：2016-04-21

申请号：US14887646

申请日：2015-10-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Jin MOON ,  Jun-Woo KIM ,  Youn Ok PARK ,  Seungjae BAHNG

IPC: H04W24/08 ,  H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/022 ,  H04W88/085

Abstract: A base station acquires an arrival time at which a signal that is transmitted from a plurality of terminals arrives at a plurality of Remote Radio Heads (RRH) that are installed within a cell, calculates an arrival delay time between the plurality of terminals and the plurality of RRHs using a predetermined reference time and an arrival time of the plurality of RRHs, selects RRHs to participate in receiving the uplink MU-MIMO among the plurality of RRHs using an arrival delay time between the plurality of terminals and the plurality of RRHs, and adjusts a transmitting time of the plurality of terminals using an arrival delay time between the plurality of terminals and RRHs to participate in receiving the uplink MU-MIMO.

Abstract translation: 基站获取从多个终端发送的信号到达安装在小区内的多个远程无线电头（RRH）的到达时间，计算多个终端与多个终端之间的到达延迟时间 使用预定的参考时间和多个RRH的到达时间，使用多个终端与多个RRH之间的到达延迟时间，选择RRH参与多个RRH中的上行MU-MIMO的接收，以及 使用多个终端与RRH之间的到达延迟时间来调整多个终端的发送时间，以参与接收上行MU-MIMO。

公开(公告)号：US20140301495A1

公开(公告)日：2014-10-09

申请号：US14247687

申请日：2014-04-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN ,  Young Jo BANG ,  Jun-Woo KIM ,  Jae Kwon KIM ,  Youn Ok PARK

IPC: H04B7/04 ,  H01Q21/06

CPC classification number: H01Q21/06 ,  H01Q1/246 ,  H01Q21/24 ,  H01Q21/28 ,  H04B7/10

Abstract: Provided is a method for transmitting and receiving multi-input multi-output in a wireless backhaul network, including: selecting at least one pair of dual-polarized transmitting antennas to be activated among pairs of dual-polarized transmitting antennas of a transmitter; transmitting a signal through the selected pairs of dual-polarized transmitting antennas; and receiving, by pairs of dual-polarized receiving antennas of a receiver, the signal transmitted from the transmitter.

Abstract translation: 提供了一种用于在无线回程网络中发送和接收多输入多输出的方法，包括：在发射机的双极化发射天线对之间选择要激活的至少一对双极化发射天线; 通过所选择的双极化发射天线对传输信号; 并且通过接收机的双极化接收天线对接收从发射机发射的信号。