通讯装置及频偏校正方法;COMMUNICATION DEVICE AND FREQUENCY BIAS CALIBRATING METHOD

摘要

本发明系提供一种频偏校正方法，用于连接至一通讯系统中之一通讯装置。该方法包括：决定该通讯装置之一不连续接收周期；每隔该不连续接收周期将处于一睡眠模式中之该通讯装置唤醒至一工作模式并持续一第一期间，以定时接收该通讯网路之一寻呼指示通道信息；其中在第一个该不连续接收周期内之该第一期间之外之一第二期间，唤醒该通讯装置，藉以估算该通讯装置中一时脉信号的定时偏差并校正该时脉信号之频率偏差。本发明可有效校正通讯装置中时脉信号的定时偏差，提高PICH信号的接收性能，且实现简单，硬体成本代价低。; awakening the communication apparatus from a sleep mode to a working mode every discontinuous reception cycle for a first period to receive a page indication channel message from the communication network periodically; awakening the communication device at a second period other than the first period in the first discontinuous reception cycle, thereby estimating an accumulated time bias of a clock signal in the communication apparatus, and calibrating the accumulated time bias of the clock signal. In the invention, the accumulated time bias of the clock signal can be calibrated efficiently to increase the reception performance of the page indication channel message with simple implementation and low hardware cost.