Question: What is a prerequisite for a User Equipment (UE) to support flexible starting PRB for PUSCH in RRC_CONNECTED when operating in Coverage Enhancement Mode B, as per E-UTRA specifications?
Option 1: Support for LTE Advanced Pro
Option 2: Capability for Dynamic Spectrum Sharing
Option 3: Indication of support for ce-ModeB-r13
Option 4: Implementation of Massive MIMO
Explanation: According to E-UTRA specifications, for a UE to support flexible starting PRB for PUSCH in RRC_CONNECTED when operating in Coverage Enhancement Mode B, it must also indicate support for ce-ModeB-r13. This ensures alignment with the physical layer procedures and channel modulation specified for enhanced coverage scenarios.