Methods and systems for configuring radio frequency module

A system for using a first plurality of subscriber identity module (SIM) card interfaces at a wireless communication apparatus, the system comprising:

• a plurality of first SIM card interfaces;
• a plurality of radio frequency (RF) modules;
• at least one processing unit;
• at least one main memory;
• at least one storage unit storing program instructions executable by the at least one processing unit:
• when a first SIM card is inserted into a first SIM card interface:
• i. retrieving an international mobile subscriber identity (IMSI) of the first SIM card;
• ii. identifying, based on the IMSI, configuration information;
• iii. sending the configuration information to configuring a first radio frequency (RF) module;
• iv. configuring, based on the configuration information, the first RF module;
• and
• v. using the first RF module to connect to a base station;
• wherein:
• the IMSI is retrieved after a request is sent by the wireless communication apparatus to the first RF module;
• and
• the first RF module communicates with the first SIM card interface to retrieve the IMSI from the first SIM card after the request is received by the first RF module.

A method for using a plurality of subscriber identity module (SIM) card interfaces at a wireless communication apparatus, comprising:

• (a) selecting a first SIM card and a second SIM card;
• (b) connecting to a first base station using a first RF module with the first SIM card;
• (c) connecting to a second base station using a second RF module with the second SIM card;
• and
• (d) when an event occurs:
• i. selecting a third SIM card;
• ii. retrieving an international mobile subscriber identity (IMSI) of the third SIM card;
• iii. identifying, based on the IMSI, configuration information;
• iv. sending the configuration information to one of the first RF module and the second RF module;
• v. configuring, based on the configuration information, the one of the first RF module and the second RF module;
• vi. using the one of the first RF module and the second RF module with the third SIM card to connect to the first base station, the second base station, or a different base station;
• wherein:
• the first SIM card is inserted into a first SIM card interface of the wireless communication apparatus;
• the second SIM card is inserted into a second SIM card interface of the wireless communication apparatus;
• the third SIM card is inserted into a third SIM card interface of the wireless communication apparatus;
• the IMSI is retrieved after a request is sent by the wireless communication apparatus to the first RF module;
• and
• the first RF module communicates with the first SIM card interface to retrieve the IMSI from the first SIM card after the request is received by the first RF module.