| 发明名称 |
APPARATUS AND METHOD FOR CANCELLING SELF-INTERFERENCE SIGNAL IN RF FRONT END |
| 摘要 |
The apparatus includes a transmission signal divider for dividing and transmitting a received signal to a transmission antenna and an attenuator, an attenuator for applying a predetermined attenuation factor to the transmitted signal divided to the attenuator, a phase shifter for phase-shifting the signal to which the attenuation factor is applied by a predetermined phase, and a time delayer for time-delaying the phase-shifted signal by a predetermined time. |
| 申请公布号 |
US2016119110(A1) |
申请公布日期 |
2016.04.28 |
| 申请号 |
US201514715293 |
申请日期 |
2015.05.18 |
| 申请人 |
LG ELECTRONICS INC. ;INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY |
发明人 |
KIM Jinmin;MIN Byung-Wook;LEE Donghyun;CHUNG Jaehoon;NOH Kwangseok |
| 分类号 |
H04L5/14;H04B15/00 |
主分类号 |
H04L5/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for cancelling a self-interference signal at a radio frequency (RF) front end, the method comprising:
dividing and transmitting a received signal to a transmission antenna and an attenuator; applying a predetermined attenuation factor to a transmitted signal divided to the attenuator; phase-shifting the signal to which the attenuation factor is applied by a predetermined phase; time-delaying the phase-shifted signal by a predetermined time; transmitting the time-delayed signal to a low noise amplifier (LNA) of a receiving end; and transmitting a residual signal to the LNA after subtracting a self-interference signal from a signal received from a receiving antenna. |
| 地址 |
Seoul KR |
