Method for seting communication environment of smart card and mobile entity using layered protocol stack with selective multiple transmission protocols

摘要

PURPOSE: A method for setting a communication environment of a smart card and a mobile terminal which use a protocol stack of a hierarchical structure is provided to construct the optimized communication environment with respect to each application rapidly and stably in a multi-application smart card system. CONSTITUTION: If a smart card(100) is inserted into a mobile terminal(200), the mobile terminal(200) applies power to the smart card(100, S100). If a power is applied from the mobile terminal(200), the smart card(100) executes a reset operation in accordance with the applied power and transmits information with respect to a supportable communication environment to the mobile terminal(200) as a response signal thereto(S202). After analyzing a communication environment of the smart card(100), the mobile terminal(200) transmits a logic channel opening request message for opening a logic channel with the smart card(100) to the smart card(100, S203). The smart card(100) opens a logic channel with the mobile terminal(200) in accordance with the logic channel opening request message received from the mobile terminal(200) and transmits a response message with respect to the logic channel opening request to the mobile terminal(200, S204).