Question: In MBMS, when aggregating Reception Reports and DASH QoE Metrics Reports using MIME multipart/mixed, what is the recommended approach to differentiate between the two types of reports?
Option 1: Using a unique boundary name for each report type within the MIME message.
Option 2: Utilizing distinct Internet Media Types (content types) for each report type (e.g., "application/mbms-reception-report+xml" and "application/3gpdash-qoe-report+xml").
Option 3: Embedding a specific identifier within the XML document of each report.
Option 4: Specifying the report type in the HTTP POST URL.
Explanation: The recommended approach (Option 2) involves using distinct Internet Media Types for MBMS Reception Reports ("application/mbms-reception-report+xml") and DASH QoE Metrics Reports ("application/3gpdash-qoe-report+xml"). This method is preferred because it avoids the need for the report server to parse the XML header of each component to determine the report type, streamlining the processing of aggregated reports.