Device, method, mobile communication terminal, computer program and storage medium for frequency control

摘要

The present invention relates to devices, methods, mobile communication terminals, computer programs and storage mediums for frequency control. The frequency control device for a mobile communication terminal only uses one crystal oscillator, but can access different access networks at the same time. The frequency control device may control the output of the crystal oscillator based on a plurality of frequency offset estimation results and the service performance of access network corresponding to the frequency offset estimation results. Therefore, the flexibility of frequency offset control may be improved and better service may be provided to users.

主权项

1. A frequency control method for a mobile communication terminal, the frequency control method comprising:
acquiring a frequency offset estimation result of each of a plurality of different access networks having different performance parameters; acquiring at least one service performance parameter of each of the plurality of different access networks; determining a weight of each frequency offset estimation result based on the corresponding at least one service performance parameter; calculating a final frequency offset estimation result using the frequency offset estimation result acquired for each of the plurality of different access networks and the corresponding determined weight; determining a frequency control signal based on the final frequency offset estimation result; and controlling an output frequency of a crystal oscillator using the frequency control signal.