Cross-Carrier Scheduling Control Information Segmentation

The patent segments the control information by introducing a type indicator field that divides DCI into different types (self-scheduling, cross-carrier scheduling, aperiodic CSI request). This segmentation allows the receiver to efficiently categorize and process control signals based on their function, reducing the complexity of managing control signals across multiple serving cells while maintaining high data transmission capacity.

The patent applies local quality by making the DCI format adaptable to different local requirements. The type indicator field allows the system to locally identify and process different types of scheduling information (self-scheduling vs. cross-carrier scheduling) with appropriate handling methods. This localized processing approach improves scheduling efficiency while managing device complexity by only processing the relevant portion of control information for each specific case.

The patent uses partial action by introducing a type indicator field that partially identifies the DCI purpose. Instead of extending the CIF to cover all possible scenarios, the type indicator provides partial information about the DCI function (self-scheduling, cross-carrier scheduling, or aperiodic CSI request), which is sufficient for efficient processing. This approach maintains adaptability for multiple serving cells while avoiding excessive control signal overhead.

The patent applies preliminary action by placing the type indicator field at the beginning of the DCI structure. This allows the receiver to first identify the DCI type before processing the rest of the control information. By performing this classification action preliminarily, the system simplifies the detection and measurement process, as the receiver can prepare appropriate processing methods in advance based on the DCI type, thereby maintaining scheduling flexibility while reducing detection difficulty.