| 发明名称 |
APPARATUS AND METHOD FOR ENVELOPING TRACKING CALIBRATION |
| 摘要 |
An apparatus for envelope tracking calibration for use in a wireless communication is provided. The apparatus includes a transmission signal path configured to carry a transmission signal to an antenna. An envelope signal path configured to feed an envelope signal with an envelope tracking power amplifier. A controller is configured to transmit a normal envelope signal being generated in a normal operation mode and measure a first Adjacent Channel Leakage Ratio (ACLR) corresponding to the normal envelope signal. The controller is further configured to transmit a comparison envelope signal being generated in a comparison operation mode and measure a second ACLR corresponding to the comparison envelope signal. The controller is configured to calculate a time misalignment between the transmission signal path and the envelope signal path based on a difference between the first and second ACLRs. |
| 申请公布号 |
US2014328433(A1) |
申请公布日期 |
2014.11.06 |
| 申请号 |
US201313874985 |
申请日期 |
2013.05.01 |
| 申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
Loh Lup Meng;Interrante John Alex;Hurley William;Zhang Yaming |
| 分类号 |
H04L25/08 |
主分类号 |
H04L25/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus for envelope tracking calibration for use in a wireless communication, comprising:
a transmission signal path configured to carry a transmission signal to an antenna; an envelope signal path configured to feed an envelope signal with an envelope tracking power amplifier (PA); and a controller configured to:
transmit a normal envelope signal generated in a normal operation mode and measure a first Adjacent Channel Leakage Ratio (ACLR) corresponding to the normal envelope signal,transmit a comparison envelope signal generated in a comparison operation mode and measure a second ACLR corresponding to the comparison envelope signal, andcalculate a time misalignment between the transmission signal path and the envelope signal path based on a difference between the first and second ACLRs. |
| 地址 |
Suwon-si KR |
