公开(公告)号：US10349448B2

公开(公告)日：2019-07-09

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: H04W74/08 ,  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：US10097395B2

公开(公告)日：2018-10-09

申请号：US15493870

申请日：2017-04-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing Hui ,  Junhyeong Kim ,  Il Gyu Kim ,  Hoon Lee ,  Hee Sang Chung ,  Sung woo Choi

IPC: H04L27/34

Abstract: A transmitting apparatus for modulating data based on a predetermined 2q-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2q-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2q-QAM constellation are same with a gray code of a 2q-2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2q-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2q-QAM around the x-axis or the y-axis.