Communication chip integrated with SIM card
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Dec 3, 2014
filing date -
Dec 13, 2013
priority date (Note) -
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Abstract
The present publication discloses a communication chip integrated with a SIM card, comprising: a baseband CPU, a first protocol interface, selector switch, and a SIMZone unit; said baseband CPU being connected to the first protocol interface; said selector switch being connected to the SIMZone unit, the first protocol interface, and an IF1 interface. The selector switch and said SIMZone unit are always in a state of communication with each other, and when said selector switch is in a state of communication with said first protocol interface, said SIMZone unit is used for providing SIM card functionality to said baseband CPU; when said selector switch is in a state of communication with said IF1 interface, said SIMZone unit is used for receiving data written by means of said IF1 interface. In the embodiments of the present publication, by means of integrating a SIM card in the communication chip of a terminal equipment, the area occupied by the SIM card on the PCB of the terminal equipment is reduced, the SIM card is prevented from serving as an independent hardware entity, the swapping process is avoided, and reliability and security are increased, security being not lower than that of a conventional SIM card.
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