Question: In E-UTRA, when a User Equipment (UE) reports multiple instances of the same band combination with different Short TTI/Semi-Persistent Scheduling (sTTI/sPT) capabilities, what assumption is made about unprovided fields related to MIMO parameters for those sTTI features?
Option 1: The UE does not support any MIMO configuration for the sTTI/sPT features on that band combination.
Option 2: The corresponding MIMO parameters from the first reported instance of the band combination are applied to all subsequent instances.
Option 3: If specific sTTI MIMO fields are not provided, the UE's general mimo-UE-ParametersSTTI or, if absent, the band's default MIMO parameters for sTTI/sPT features are assumed to be supported.
Option 4: The network will query the UE separately for each missing MIMO parameter field related to the sTTI/sPT capabilities.
Explanation: This is because, according to the specifications, if fields like sTTI-MIMO-CA-ParametersPerBoBCs are not provided, the parameters from mimo-UE-ParametersSTTI are applied. If those also are not provided, then the band's default MIMO parameters for sTTI/sPT features are assumed supported, ensuring continuity of service configuration based on available and defaulted settings.