公开(公告)号：US20170353953A1

公开(公告)日：2017-12-07

申请号：US15609748

申请日：2017-05-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing HUI ,  Junhyeong KIM ,  Yeong Jin KIM ,  Il Gyu KIM ,  Hee Sang CHUNG

IPC: H04W72/04 ,  H04W74/08 ,  H04L29/08

CPC classification number: H04W74/0833 ,  H04W56/00

Abstract: A method for transmitting and receiving a signal using steps of transmitting an uplink signal to a base station in a duration of an uplink pilot time slot (UpPTS) of a special subframe, and waiting for a guard time (GT) before receiving a downlink signal from the base station after the transmission of the uplink signal, and a terminal transmitting and receiving a signal by using the method.

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.