6 Activating and deactivating EMMI

04.143GPPIndividual equipment type requirements and interworkingSpecial conformance testing functionsTS

Activating EMMI requires the presence of a test SIM. EMMI shall be activated by any of the following:

– switching on the MS;

– inserting a test SIM;

– layer 3 message on the radio interface (ACT_EMMI_CMD).

When the MS is ready to receive frames, it shall send one XON message.

EMMI shall be deactivated by any of the following:

– switching off the MS;

– removing the test SIM;

– layer 3 message on the radio interface (DEACT_EMMI).

NOTE: No XOF shall be sent after deactivation.

The L3 message used on the radio interface to activate the EMMI is the activation command ACT_EMMI_CMD (see subclause 8.4). This message has to be acknowledged by the message ACT_EMMI_ACK on the radio interface sent by the MS (see subclause 8.5).

For deactivation of the EMMI in the MS through the radio interface, the message DEACT_EMMI is defined in subclause 8.6. An acknowledgement of this message is not required.