Question: In scenarios where a User Equipment (UE) is simultaneously connected to two access technologies (primary and secondary), with the secondary access operating in unlicensed spectrum, what is the primary reason for documenting usage over this unlicensed access?
Option 1: To optimize network congestion by dynamically shifting traffic between accesses.
Option 2: For regulatory compliance to ensure fair spectrum sharing among operators.
Option 3: To enhance User Equipment (UE) battery life by selecting the most power-efficient access.
Option 4: So an operator can differentiate and account for traffic transported over each type of access.
Explanation: Accurate documentation of usage over unlicensed access allows operators to distinguish between traffic carried on licensed vs. unlicensed spectrum, facilitating billing, network planning, and optimization based on the specific characteristics and costs associated with each type of access. This differentiation is crucial for operational efficiency and strategic decision-making.