L.4 Support of commands

31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS

The Relay Node may limit the set of APDU commands encapsulated in TRANSACT DATA command to the strict minimum (READ BINARY, READ RECORD, SELECT, STATUS, UPDATE BINARY, UPDATE RECORD, AUTHENTICATE).

The Relay Node and the UICC shall support letter class ‘e’ toolkit commands for BIP, see TS 31.111 [12]. In order to support toolkit the TERMINAL PROFILE, TERMINAL RESPONSE, ENVELOPE and FETCH commands need to be supported. These commands are not issued on the secure channel. According to TS 31.111 [12], USAT commands shall be sent on logical channel 0.