Method for performing antenna tuning control of wireless transceiver device in wireless communications system, and associated apparatus

A wireless transceiver device, for performing antenna tuning control of the wireless transceiver device in a wireless communications system, the wireless transceiver device being one of multiple devices within the wireless communications system, the wireless transceiver device comprising:

• a processing circuit, arranged to control operations of the wireless transceiver device;
• and
• at least one communications control circuit, coupled to the processing circuit, arranged to perform communications control, wherein the at least one communications control circuit is arranged to perform wireless communications operations with a network within the wireless communications system for the wireless transceiver device;
• wherein:
• during a tuning stage among multiple stages, the wireless transceiver device is arranged to utilize the at least one communications control circuit to obtain predetermined characterization data of at least one impedance-related tuning component regarding antenna tuning of at least one antenna from a storage device within the wireless transceiver device, wherein the at least one impedance-related tuning component comprises at least one aperture tuner (APT), and the predetermined characterization data is determined in advance during a characterization stage among the multiple stages;
• during the tuning stage, the wireless transceiver device is arranged to utilize the at least one communications control circuit to measure at least one voltage standing wave ratio (VSWR) of any antenna among the at least one antenna;
• and
• during the tuning stage, the wireless transceiver device is arranged to utilize the at least one communications control circuit to determine at least one setting of the at least one impedance-related tuning component according to the predetermined characterization data and the measured at least one VSWR, for antenna performance optimization;
• wherein during the characterization stage, the at least one communications control circuit is arranged to perform hardware characterization on the at least one impedance-related tuning component, in order to determine the predetermined characterization data, for being used in the tuning stage.