Question: How does a receiving RNSAP entity handle an Abstract Syntax Error due to receiving IEs or IE groups with too many occurrences in a UTRAN Iur interface scenario?
Option 1: Based on Criticality information and Presence information for the affected IE/IE group.
Option 2: By ignoring the error and processing the rest of the message as normal.
Option 3: By sending a negative acknowledgement (NACK) for the specific IE/IE group.
Option 4: By rejecting the entire procedure.
Explanation: Receiving IEs or IE groups with too many occurrences results in the rejection of the entire procedure to ensure integrity and consistency in message processing, as such errors can fundamentally compromise the validity of the transaction.