Core Technologies of Portable SIM

Technology for transmitting SIM card
information to target devices wirelessly

Portable SIM device(master device)

  • Physically separate SIM card from mobile phone
  • SIM card information can be transmitted to target devices via Bluetooth
  • Main modules of master device is only Bluetooth and SIM card
  • NFC function simplifies pairing
Technology for transmitting SIM card
information to target devices wirelessly
Technology for receiving Portable SIM device
information to connect a mobile network

psim proxy(target device)

  • SIM card-type Bluetooth device
  • A target device with a “psim proxy” can connect to master device and receive the SIM card information
  • A dedicated application (Android/iOS) can switch the Bluetooth connection from one master device to another
Technology for receiving Portable SIM device
information to connect a mobile network
Technology enabling a smartphone or
tablet to be a master and target device

Software enabling Portable SIM functions
(※Referred to below as PSIM software)

  • Application (Android) and chipset software (developed with Qualcomm) enabling Portable SIM to be a master and target device
    Reference: press release announced on March 2015
  • When used as a master device, SIM information on the card plugged into the device can be transferred to a target device
  • When used as a target device, SIM information is received from the master device and used to connect to a carrier network
Technology enabling a smartphone or
tablet to be a master and target device

Example of Master and Target Device Combinations

Master device

Target device

  • AA
    Portable SIM
    device
    psim proxy
  • BB
    Portable SIM
    device
    Device with
    PSIM software
  • CC
    Device with
    PSIM software
    psim proxy
  • DD
    Device with
    PSIM software
    Device with
    PSIM software
toptop

 "PSIM Suite", "Portable SIM", "psim proxy" are trademarks of NTT DOCOMO, INC.