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Patent Searching and Data


Title:
APPARATUS AND METHOD TO SUPPORT AN INCREASED UNIVERSAL INTEGRATED CIRCUIT CARD (UICC) VOLTAGE CLASS
Document Type and Number:
WIPO Patent Application WO/2021/179120
Kind Code:
A1
Abstract:
A method for initialization of a universal integrated circuit card (UICC) of a mobile equipment is described. The method includes setting a voltage level translator coupled between the UICC and a baseband controller to a translation mode when a current voltage class is not supported by the UICC and the current voltage class is a maximum voltage class supplied by a power management integrated circuit (PMIC) of the mobile equipment. The method also includes applying an increased voltage class to reset the UICC to initialize according to the increased voltage class. The method further includes translating first port signals received from the baseband controller at the current voltage class to second port signals having a logic level matched to the increased voltage class. The method also includes supplying the second port signals at the increased voltage class from a second port of the voltage level translator to the UICC.

Inventors:
LIU MENG (US)
LI JIAN (US)
CAO MING (US)
PENG YUN (US)
QU JINGNAN (US)
ZHANG HAO (US)
LIU YI (US)
NELUROUTH RAJENDRA PRASAD (US)
CHIKKALA VENKATA DURGA VINOD (US)
Application Number:
PCT/CN2020/078418
Publication Date:
September 16, 2021
Filing Date:
March 09, 2020
Export Citation:
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Assignee:
QUALCOMM INC (US)
LIU MENG (CN)
LI JIAN (CN)
CAO MING (CN)
PENG YUN (CN)
QU JINGNAN (CN)
ZHANG HAO (CN)
LIU YI (CN)
NELUROUTH RAJENDRA PRASAD (IN)
CHIKKALA VENKATA DURGA VINOD (IN)
International Classes:
G05F1/46; H04B1/40; H04W88/02
Domestic Patent References:
WO2019184982A12019-10-03
Foreign References:
EP3217500A12017-09-13
US20190354493A12019-11-21
CN202049517U2011-11-23
US20090156258A12009-06-18
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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