发明名称 |
Calibration apparatus and method of terminal in wireless communication system |
摘要 |
A method and apparatus for calibrating a terminal is provided. The apparatus includes a modem; a transmission chain configured to process a signal input from the modem and transmit the processed signal via an antenna; a reception chain configured to process a signal received via the antenna and transmit the processed signal to the modem; and a connector configured to connect an output of the transmission chain and an output of the reception chain via an envelope detector and a switch configured to turn on/off the envelope detector, calibrate a DC offset voltage and I and Q signals of the transmission chain by inputting a one-tone signal of 1 MHz into the transmission channel via the modem in a state where the envelope detector is turned on, and calibrate a second order input intercept point (IIP2) characteristic value by adjusting the signal input into the modem via the reception channel. |
申请公布号 |
US9461756(B2) |
申请公布日期 |
2016.10.04 |
申请号 |
US201514639344 |
申请日期 |
2015.03.05 |
申请人 |
Samsung Electronics Co., Ltd |
发明人 |
Lee Young-Taek |
分类号 |
H04B1/44;H04B17/14;H04B1/10;H04B1/525;H04B1/48;H04B17/10 |
主分类号 |
H04B1/44 |
代理机构 |
The Farrell Law Firm, P.C. |
代理人 |
The Farrell Law Firm, P.C. |
主权项 |
1. An apparatus for calibrating a terminal of a wireless communication system, the apparatus comprising:
a modem; a transmission chain configured to process a signal input from the modem and transmit the processed signal via an antenna; a reception chain configured to process a signal received via the antenna and transmit the processed signal to the modem; and a connector configured to connect an output of the transmission chain and an output of the reception chain via an envelope detector and a switch configured to turn on/off the envelope detector, calibrate a DC offset voltage and I and Q signals of the transmission chain by inputting a one-tone signal of 1 MHz into the transmission channel via the modem in a state where the envelope detector is turned on, and calibrate a second order input intercept point (IIP2) characteristic value by adjusting the signal input into the modem via the reception channel. |
地址 |
KR |