Abstract: A method for implementing requests from an app by a SIM in a mobile phone comprises the steps of: binding an app to a BIP server by a mobile phone; delivering a request command to the BIP server from the mobile phone; converting the request command to an APDU format, packing the converted request command in the APDU format in a request packet, and delivering the request packet to an IP of a SIM by the BIP server; receiving and unpacking the request packet to have the converted request command, and providing the converted request command to the SIM; executing the request command to have a result by the SIM; delivering the result in a response packet to the BIP server via the mobile network relayed; unpacking the response packet to fetch the result, and delivering the result to the mobile phone for the app by the BIP server.

Abstract: A method for implementing requests from an app by a SIM in a mobile phone comprises the steps of: binding an app to a BIP server by a mobile phone; delivering a request command to the BIP server from the mobile phone; converting the request command to an APDU format, packing the converted request command in the APDU format in a request packet, and delivering the request packet to an IP of a SIM by the BIP server; receiving and unpacking the request packet to have the converted request command, and providing the converted request command to the SIM; executing the request command to have a result by the SIM; delivering the result in a response packet to the BIP server via the mobile network relayed; unpacking the response packet to fetch the result, and delivering the result to the mobile phone for the app by the BIP server.

Abstract: The invention presents a battery pack for a portable device in near field communication having an integrated circuit chip for performing contactless communication, an antenna connected to the integrated circuit chip for transmitting signals between the integrated circuit chip and a remote transceiver, a power source for providing power to the portable device and the integrated circuit chip, and at least one first card holder connected to the integrated circuit chip for removably receiving at least one first integrated circuit card.

Abstract: A contactless integrated circuit card system for communicating with a card reader is disclosed. The contactless integrated circuit card system includes an integrated circuit chip for performing contactless identification; a main antenna connected to the integrated circuit chip for transmitting signals to and from the card reader; and at least one open-circuit antenna disposed on the main antenna for increasing gain of the main antenna so that the electromagnetic induction of the main antenna is enhanced.