公开(公告)号：US20190199392A1

公开(公告)日：2019-06-27

申请号：US16221970

申请日：2018-12-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seon Ae KIM ,  Dong Hyuk GWAK ,  Tae Joong KIM ,  Jung Bo SON ,  Yu Ro LEE ,  Hyun LEE ,  Hyung Sik JU

IPC: H04B1/525 ,  H04B1/00 ,  H04L5/14 ,  H04L25/02

Abstract: An operation method of an in-band full duplex (IFD) transceiving apparatus including a receiving end, a transmitting end, a digital self-interference cancellation (DSIC) processing unit, and a digital SI cancellation unit may comprise generating, by the DSIC processing unit, signal shaping coefficients for wave shaping of a signal of the transmitting end; generating, by the DSIC processing unit, channel estimation coefficients for cancellation of a self-interference signal in a reception signal of the receiving end; forming, by the DSIC processing unit, a transmission signal based on the signal shaping coefficients; and generating, by the DSIC processing unit, a control signal for cancellation of the self-interference signal in the reception signal based on the channel estimation coefficients.

公开(公告)号：US20190181974A1

公开(公告)日：2019-06-13

申请号：US16207585

申请日：2018-12-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Sik JU ,  Dong Hyuk GWAK ,  Seon Ae KIM ,  Jung Bo SON ,  Yu Ro LEE ,  Hyun LEE

IPC: H04K3/00 ,  H04W12/12 ,  H04W72/04

Abstract: An operation method of a terminal in a wireless communication system includes: transmitting uplink (UL) traffic information indicating a size of a UL data signal to a base station; receiving a jamming message generated based on the UL traffic information from the base station; generating an uplink (UL) transmission signal including the UL data signal and a UL jamming signal based on the jamming message; and transmitting the UL transmission signal to the base station. Also, the jamming message indicates a pattern of the UL jamming signal, the UL transmission signal is transmitted in a same frequency band as a frequency band in which a downlink (DL) transmission signal of the base station is received, and the UL jamming signal is transmitted in remaining resources excluding resources occupied by the UL data signal in the frequency band.

公开(公告)号：US20180076847A1

公开(公告)日：2018-03-15

申请号：US15697592

申请日：2017-09-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Sik JU ,  Dong Hyuk GWAK ,  Seon Ae KIM ,  Yu Ro LEE ,  Hyun LEE

IPC: H04B1/525 ,  H04B7/0413

CPC classification number: H04B1/525 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/14 ,  H04L5/16 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0328

Abstract: An operation method of an in-band full duplex (IFD) multiple-input multiple-output (MIMO) transceiver, including a reception part, a transmission part, an analog self-interference (SI) generator, and a self-interference cancellation (SIC) controller, may comprise generating, at the SIC controller, a control signal for analog SIC and digital SIC and outputting the control signal to the reception part and the analog SI generator; cancelling, at the SIC controller, SI of a transmission signal of the transmission part based on the control signal; and cancelling, at the reception part, SI of a signal of the reception part based on the control signal.