NTT DOCOMO has developed Portable SIM technology for transmitting subscriber identity between devices, enabling authentication of target devices on the desired mobile network as needed.
NTT DOCOMO has begun licensing the technologies to companies who wish to consider making use of it for device/solutions development.
Portable SIM technology was first announced in June 2014, followed by announcement of an additional version in March 2015. All of a Portable SIM technology with the latest update
“psim proxy” has now been packaged as PSIM Suite.
Usually, one SIM card is plugged into one device. When switching to a different carrier for traveling or for other reasons, the SIM card has to be replaced each time.
With Portable SIM technology, a master device which equips the SIM card can transmit SIM information to target devices wirelessly. This technology allows the SIM to be freed from conventional the one-on-one relationship with the device, enabling a wider range of combinations.
A development arrangement was announced with hardware startup firm Cerevo Inc. as the first company to license the technology.
Interview : Mr. Iwasa / President and CEO of Cerevo Inc.
Application case for a product
Use case ①
A concept movie of Portable SIM technology
(announced in October 2014)
Taking advantage of the compact size to turn a PSIM device into a wearable device.
Another potential use is as a personal authentication device, making use of NFC or Bluetooth.
Portable SIM device
Software enabling Portable SIM
"PSIM Suite", "Portable SIM", "psim proxy" are trademarks of NTT DOCOMO, INC.