MULTI-MODE TERMINAL AND AUTOMATIC FREQUENCY CONTROL SWITCHING METHOD THEREOF, AND COMPUTER STORAGE MEDIUM

• Main Authors: LI, Chao, XIE, Haolv
• Format: Patent
• Language: Chinese; English; French
• Published: 20.10.2016
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WIRELESS COMMUNICATIONS NETWORKS

A multi-mode terminal and automatic frequency control (AFC) switching method thereof, and computer storage medium. The method comprises: outputting a control voltage by utilizing an AFC digital-to-analog converter (AFC_DAC) of a first radio frequency chip in a multi-mode terminal (301); inputting the outputted control voltage to a voltage-controlled temperature-compensated crystal oscillator (VC-TCXO), and generating a clock signal (302); for an operating mode of the multi-mode terminal, shaping the generated clock signal and inputting the shaped clock signal to a radio frequency chip corresponding to the operating mode to serve as a clock signal of the radio frequency chip (303); and shaping the generated clock signal through the first radio frequency chip, and inputting the shaped clock signal to a multi-mode baseband chip to serve as a clock signal of the multi-mode baseband chip (304). L'invention concerne un terminal multimodal et son procédé de commutation de commande de fréquence automatique (AFC), et