| 摘要 |
<p>A method for automatically adjusting the effective communication distance of the radio frequency SIM card by short message, includes: establishing a mobile communication terminal radio frequency parameter database based on the mobile communication network server, under control of the central process unit CPU in the said radio frequency SIM card, reading out the IMEI code of the mobile communication terminal and determining its type; searching the corresponding radio parameter of mobile communication terminal in the database by short message, and applying it; if the corresponding radio frequency parameter of the mobile communication terminal can not be found in the database, prompting the user to correct the radio frequency parameter. In this way, though the mobile communication terminal device is changed, the radio frequency parameter of the radio frequency SIM card can be updated automatically.</p> |
