Using a plurality of SIM cards at a wireless communication device

摘要

A method, an apparatus and a system for using a plurality of subscriber identity module (SIM) cards is provided. The use of the plurality of subscriber identity module (SIM) cards comprises stop using a first SIM card and start using a second SIM card when a first event trigger occurs; and stop using the second SIM card and start using an operational SIM card when a second event trigger occurs. The operational SIM card can be the first SIM card, the second SIM card or another SIM card. The SIM cards can be placed in a wireless communication system. The SIM cards can also be placed in at least one external device and the external device can be connected to the wireless communication system.

主权项

1. A method for using a plurality of subscriber identity module (SIM) cards at a wireless communication system, the method comprising:
a. when a first event trigger occurs:
i. stopping using a first SIM card;ii. selecting a second SIM card from the plurality of SIM cards;iii. starting using a second SIM card; b. when a second event trigger occurs:
iv. stopping using the second SIM card;v. selecting an operational SIM card from the plurality of SIM cards;vi. starting using the operational SIM card;wherein when the first and second event triggers occur more frequent than a threshold, adding a time delay to both first and second event triggers;wherein the operational SIM card can be the first SIM card, the second SIM card or another SIM card from the plurality of SIM cards;wherein the criteria for the first event trigger and the second event trigger are different;wherein the selection of the second SIM is based on tariff price, usage frequency, expected network performance, and priority; andwherein the selection of the operational SIM card is based on tariff price, usage frequency, expected network performance, and priority.