This test case is used for validating whether the MME asks for UE IMSI if the emergency attach request from eNB has unknown GUTI.
The GUTI is the Globally Unique Temporary ID, and identifies the mobile device to the LTE network.
This test case is used for validating whether the MME asks for UE IMSI if the emergency attach request from eNB has unknown GUTI.
The pre-requisites of this test is MME is configured to support Emergency Attach and “All UEs are allowed” settings. UE initiates the Emergency Attach Procedure.
In this test case, ABot simulated eNB sends Initial UE Message with initial Attach Request with request type Emergency attach, Identity type GUTI ( which is unknown to MME). The MME, which is the SUT, sends Identity Request message requesting for UE IMSI.
The scenario executed in this test case is Emergency Attach Request with invalid temporary id – GUTI.
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