公开(公告)号：US20140301501A1

公开(公告)日：2014-10-09

申请号：US14309925

申请日：2014-06-20

Applicant: MEDIATEK Inc.

Inventor： Kuo-Hao Chen ,  Chun-Hao Liao ,  Pei-Shiun Chung ,  Hsin-Hung Chen

IPC: H04L25/03

CPC classification number: H04L25/03 ,  H04L7/0037 ,  H04L27/364 ,  H04L27/3863

Abstract: A method for compensating the frequency dependent phase imbalance in a transmitter is provided. The transmitter processes a baseband signal. The method includes the following steps: (a) compensating the baseband signal with a predetermined delay amounts; (b) inputting the compensated baseband signal to an upconversion circuit to generate a radio frequency (RF) signal; (c) inputting the RF signal to a delay information extractor to obtain a correlation value related to the information of the predetermined delay amount; (d) changing the predetermined delay amount and compensating the baseband signal again with the changed predetermined delay amount, and performing steps (b) and (c) again to update the correlation value; and (e) selecting a candidate delay amount from the predetermined delay amount according to the correlation value, and compensating the transmitter by using the candidate delay amount.

Abstract translation: 提供了用于补偿发射机中的频率相关相位不平衡的方法。 发射机处理基带信号。 该方法包括以下步骤：（a）以预定的延迟量补偿基带信号; （b）将经补偿的基带信号输入到上变频电路以产生射频（RF）信号; （c）将RF信号输入延迟信息提取器以获得与预定延迟量的信息相关的相关值; （d）改变预定的延迟量并用改变的预定延迟量再次补偿基带信号，并再次执行步骤（b）和（c）以更新相关值; 以及（e）根据相关值从预定延迟量中选择候选延迟量，并且通过使用候选延迟量来补偿发送器。