Question: What is the primary function of the MBMS-Session-Identity AVP in the context of Interworking between PLMN and PDN?
Option 1: To identify a specific UE within an MBMS session.
Option 2: To allocate resources for an MBMS session.
Option 3: To authenticate users for an MBMS session.
Option 4: To uniquely identify a transmission of a specific MBMS session, in conjunction with TMGI.
Explanation: The MBMS-Session-Identity AVP is used to uniquely identify a transmission of a specific MBMS session, along with the TMGI. This ensures that the initial transmission and subsequent retransmissions of the same MBMS session can be properly identified and managed within the network.