Question: What determines the length (11 bits or 15 bits) of the Length Indicator (LI) field for Radio Link Control (RLC) Acknowledged Mode (AM)?
Option 1: The type of User Equipment (UE) connected to the network.
Option 2: The configuration set by the Serving and Packet Data Network Gateway (S/P-GW).
Option 3: Configuration by upper layers within the RLC entity.
Option 4: The specific application generating the data traffic.
Explanation: In Radio Link Control (RLC) protocol, particularly for Acknowledged Mode (AM), the length of the Length Indicator (LI) field is not statically defined and can vary between 11 bits or 15 bits. This variability is intentionally designed to accommodate different requirements based on the network's operational context. The decision on which length to use is made by upper layers within the RLC entity, allowing for flexibility in managing data transmission efficiently across the radio link.