公开(公告)号：US20180132283A1

公开(公告)日：2018-05-10

申请号：US15802682

申请日：2017-11-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing HUI ,  Yeong Jin KIM ,  Il Gyu KIM ,  Jun Hwan LEE ,  Hee Sang CHUNG

IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W36/00

Abstract: A method and a terrestrial base station for receiving an uplink signal. The terrestrial base station is configured to: receive a preamble corresponding to an orthogonal pseudo-noise (PN) sequence of a plurality of the orthogonal PN sequences from an onboard base station in a train; recognize identification (ID) of the onboard base station from the preamble, and allocate a temporary network ID and an uplink grant (UL grant) to the onboard base station; and receive the uplink signal transmitted based on the temporary network ID and the UL grant.

公开(公告)号：US20180027555A1

公开(公告)日：2018-01-25

申请号：US15652488

申请日：2017-07-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Junhyeong KIM ,  Bing HUI ,  Il Gyu KIM ,  Jun Hwan LEE ,  Hoon LEE ,  Hee Sang CHUNG

IPC: H04W72/04 ,  H04L5/00

Abstract: A high speed moving terminal including first and second antennas each communicating with first and second radio units (RUs) of a base station distributedly installed in a mobile wireless backhaul network communicates with the first and second RUs, respectively, with different uplink-downlink configuration of the first RU and the second RU, and transmits control information of the corresponding downlink signal in an uplink subframe that comes first in the time domain after processing latency of a downlink signal received from the first RU among uplink frames with the uplink-downlink configurations of the first RU and the second RU if the downlink signal is received from the first RU through the first antenna.

公开(公告)号：US20160044623A1

公开(公告)日：2016-02-11

申请号：US14820164

申请日：2015-08-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee Sang CHUNG ,  Il Gyu KIM

IPC: H04W56/00

CPC classification number: H04W56/0065

Abstract: Provided are a method and apparatus for controlling a plurality of base stations disposed along the moving path of a moving group object, including determining a frame offset for the plurality of base stations based on a first delay time generated between the moving group object and the plurality of base stations and a second delay time generated between the plurality of base stations and the base station control device, and transferring data to be transmitted to the moving group object to the plurality of base stations based on the frame offset.

Abstract translation: 提供了一种用于控制沿着移动组对象的移动路径设置的多个基站的方法和装置，包括基于在移动组对象和多个基站之间产生的第一延迟时间来确定多个基站的帧偏移量 以及在所述多个基站与所述基站控制装置之间产生的第二延迟时间，以及基于所述帧偏移将要发送到所述移动组对象的数据传送到所述多个基站。

公开(公告)号：US20150016337A1

公开(公告)日：2015-01-15

申请号：US14256170

申请日：2014-04-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee Sang CHUNG ,  Il Gyu KIM

IPC: H04J3/06 ,  H04W56/00 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L5/0012 ,  H04L5/0053 ,  H04L27/2655 ,  H04L27/2692 ,  H04W56/0085

Abstract: Disclosed are a method for configuring a radio frame, an apparatus for the same, a method for a mobile terminal to acquire synchronization with a base station, and a mobile terminal for the same. A method for configuring a radio frame, according to an example embodiment of the present invention, comprises generating a first synchronization signal and arranging the first synchronization signal in a slot for synchronization signal, generating a second synchronization signal and arranging the second synchronization signal in a predetermined position from the first synchronization signal, and constructing a radio frame including the first synchronization signal and the second synchronization signal. A plurality of secondary synchronization signals include difference sequences derived from a same sequence, and constitute hopping code with a predetermined hamming distance.

Abstract translation: 公开了一种用于配置无线电帧的方法，用于其的装置，用于移动终端获得与基站的同步的方法，以及用于其的移动终端。 根据本发明的示例性实施例的用于配置无线电帧的方法包括：生成第一同步信号并将第一同步信号布置在用于同步信号的时隙中，产生第二同步信号并将第二同步信号排列在 从所述第一同步信号预定位置，以及构造包括所述第一同步信号和所述第二同步信号的无线电帧。 多个次同步信号包括从相同序列导出的差分序列，并构成具有预定汉明距离的跳码。

公开(公告)号：US20140010335A1

公开(公告)日：2014-01-09

申请号：US13904604

申请日：2013-05-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jun Hwan LEE ,  Hee Sang CHUNG ,  Il Gyu KIM ,  Seung Chan BANG

IPC: H04B7/08

CPC classification number: H04B7/0808 ,  H04B17/318 ,  H04W4/70

Abstract: Provided are a method of receiving downlink data and a machine type communication (MTC) device using the same. The MTC device according to the present invention which has a plurality of antennas includes a reception signal processing module that receives a downlink reference signal for each antenna from a base station, estimates reception signal quality with respect to the downlink reference signal for each antenna, and selects the antenna to receive a downlink signal in accordance with the reception signal quality with respect to each antenna.

Abstract translation: 提供一种接收下行链路数据的方法和使用其的机器类型通信（MTC）设备。 根据本发明的具有多个天线的MTC设备包括接收信号处理模块，其从基站接收每个天线的下行链路参考信号，针对每个天线估计相对于下行链路参考信号的接收信号质量，以及 根据每个天线的接收信号质量选择天线接收下行链路信号。