公开(公告)号：US08913969B1

公开(公告)日：2014-12-16

申请号：US12785027

申请日：2010-05-21

申请人： Hirofumi Honjo ,  Suryanarayana Pappu ,  Mikko Sannala ,  Ricke W. Clark

发明人： Hirofumi Honjo ,  Suryanarayana Pappu ,  Mikko Sannala ,  Ricke W. Clark

IPC分类号： H04B1/04

CPC分类号： H04B1/04 ,  H03F1/3241 ,  H03F1/3288 ,  H04B17/13 ,  H04B2001/0425

摘要： The present disclosure relates to amplitude based pre-distortion calibration of an RF communications terminal, such as a cell phone, by transmitting a first standard RF transmit burst from the RF communications terminal to an RF test instrument, which assimilates the first standard RF transmit burst. A calibration control system extracts information regarding the first standard RF transmit burst from the RF test instrument; determines amplitude based distortion of the RF communications terminal using the extracted information; determines amplitude based pre-distortion calibration information using the determined amplitude based distortion; and calibrates the RF communications terminal using the amplitude based pre-distortion calibration information. By using a single-shot transmit burst, calibration times may be minimized. To calibrate the RF communications terminal at multiple transmit frequencies, multiple single-shot transmit bursts may be used, such that each single-shot transmit burst is at a different calibration frequency.

摘要翻译： 本公开涉及通过从RF通信终端向RF测试仪器发送第一标准射频发射脉冲串，RF通信终端（例如蜂窝电话）的基于幅度的预失真校准，其将第一标准RF发射脉冲串 。 校准控制系统从RF测试仪器提取关于第一标准RF发射脉冲串的信息; 使用提取的信息确定RF通信终端的基于幅度的失真; 使用所确定的基于幅度的失真来确定基于幅度的预失真校准信息; 并使用基于振幅的预失真校准信息校准RF通信终端。 通过使用单次发送突发，校准时间可能被最小化。 为了在多个发射频率上校准RF通信终端，可以使用多个单次发射脉冲串，使得每个单次发射脉冲串处于不同的校准频率。