Question: In a 5G System utilizing Mission Critical Push-To-Talk (MCPTT), how are priorities assigned to different types of MCPTT calls in terms of QoS flow priority levels, from highest to lower?
Option 1: MCPTT Emergency Call > MCPTT Imminent Peril Call > Standard MCPTT Call
Option 2: MCPTT Imminent Peril Call > MCPTT Emergency Call > Standard MCPTT Call
Option 3: Standard MCPTT Call > MCPTT Imminent Peril Call > MCPTT Emergency Call
Option 4: MCPTT Imminent Peril Call and MCPTT Emergency Call have equal highest priority, with Standard MCPTT Call being lower
Explanation: According to the prioritization rules for MCPTT services over a 5G System, emergency situations are naturally given precedence. Thus, an MCPTT Emergency Call is assigned the highest priority level among all MCPTT call types to ensure immediate response in critical situations. Following this logic, an MCPTT Imminent Peril Call, indicating a high-risk situation though not necessarily an ongoing emergency, is given a higher priority than a standard MCPTT Call but lower than an Emergency Call. This hierarchical structure ensures that the most urgent communications are facilitated with the highest quality of service (QoS) available.