Question: In E-UTRA, what is the primary purpose of the `maxNumberUpdatedCSI-Proc-STTI-Comb27-r15` field for a User Equipment (UE) with more than 2 Component Carriers (CCs)?
Option 1: To define the maximum number of CSI processes that can be updated per UE for aperiodic CSI reporting on short TTI for CA scenarios.
Option 2: To specify the minimum number of CSI processes required for periodic CSI reporting on normal TTI for SA scenarios.
Option 3: To indicate the UE's capability for simultaneous CSI processing across all supported CCs in an NSA deployment.
Option 4: To determine the UE's power class for transmission in a multi-CC configuration.
Explanation: This field is specifically related to the support of short TTI (Transmission Time Interval) specific A-CSI (Aperiodic Channel State Information) reporting for Carrier Aggregation (CA) scenarios with more than 2 Component Carriers (CCs). It essentially caps the number of CSI (Channel State Information) processes that can be updated per UE when aperiodic CSI is requested, ensuring efficient resource utilization and management in complex CA setups. This directly impacts how UEs report channel conditions back to the base station (eNodeB) in advanced LTE configurations, affecting overall network performance and user experience.