Synchronization Signal Configuration for Carrier Aggregation

The patent segments the carrier aggregation process by introducing a master cell group (MCG) and a secondary cell group (SCG), each managed independently with their own synchronization signal blocks (SSBs). This segmentation allows the system to handle multiple carriers in organized groups, improving throughput while managing complexity through structured division of carrier management responsibilities.

The patent adds a new dimension to carrier aggregation by incorporating both frequency domain aggregation and time domain synchronization mechanisms. By introducing SSB-based synchronization across multiple cell groups and defining specific timing relationships between different cell groups, the system expands the traditional single-dimension carrier aggregation into a multi-dimensional framework that handles both throughput and complexity more effectively.

The patent applies preliminary action by pre-configuring synchronization signal blocks (SSBs) in specific time-frequency positions before data transmission begins. The master cell group and secondary cell group each have pre-defined SSB transmission timing and frequency locations, allowing the user equipment to perform synchronization in advance and establish timing relationships before actual data communication starts, thereby reducing synchronization difficulty during operation.

The patent introduces synchronization signal blocks (SSBs) as intermediary elements that mediate between multiple cell groups and the user equipment. These SSBs serve as reference signals that facilitate synchronization across the master and secondary cell groups, providing a common reference framework that simplifies the detection and measurement process for multi-cell synchronization.