RRC Connection Resumption with Small Data Transmission

The patent segments data transmission into two distinct procedures: Small Data Transmission (SDT) for small data volumes and regular RRC connection resumption for large data volumes. This segmentation allows the system to optimize for low latency when data is small while maintaining the ability to handle large data transfers when needed, thus resolving the contradiction between data transfer capability and transmission latency.

The patent applies partial action by enabling SDT procedures that allow limited data transmission without completing the full RRC connection resumption process. This partial action (transmitting small data packets) achieves the necessary data transfer capability while avoiding the excessive overhead and latency associated with full connection establishment, thus resolving the technical contradiction.

The patent introduces dynamic selection between SDT and regular RRC connection resumption based on data volume characteristics. The system dynamically adapts its behavior: using SDT for small data volumes to minimize overhead, and switching to full RRC connection resumption for large data volumes to ensure adequate handling capability. This dynamic approach resolves the contradiction between network overhead and data volume handling capability.

The patent changes the operational parameters of the RRC state machine by introducing new SDT-specific procedures and message formats. These parameter changes enable efficient small data transmission while maintaining the ability to transition to full connection mode when data volume requirements exceed SDT capabilities, thus resolving the contradiction between reduced overhead and data volume handling.