Question: For a QoS flow with a mapped 5QI value of 2, how is its activity status determined in terms of retainability rate measurement?
Option 1: The QoS flow is considered active if there's user data in the PDCP queue or if any data (UL/DL) has been transferred during the last 100 ms.
Option 2: The QoS flow is seen as active as long as the UE is in RRC connected state, with session time measured from the first to 100 ms after the last data transmission.
Option 3: Activity status is determined by the presence of control plane signals only, disregarding user data transmissions.
Option 4: The QoS flow's activity is assessed based on the UE's capability to handle multiple concurrent flows.
Explanation: A QoS flow with a mapped 5QI value of 2 (classified as a continuous flow) is considered active if the UE is in RRC connected state. Session time starts from the first data transmission and ends 100 ms after the last data transmission, distinguishing it from bursty flows.