CSI Transmission Segmentation for Carrier Aggregation Power Efficiency

The patent segments the transmission of channel state information by dividing multiple CSI reports into different transmission groups. Reports with the same priority level are transmitted together in a subframe, while reports with different priority levels are transmitted in different subframes. This segmentation resolves the contradiction by enabling carrier aggregation support through multi-subframe transmission while maintaining power utilization efficiency by avoiding simultaneous transmission of all CSI reports.

The patent applies preliminary action by determining priority levels for different CSI reports before transmission. The user equipment evaluates factors such as downlink carrier priority, reporting type, and channel conditions in advance to assign priority levels. This preliminary classification enables the system to transmit high-priority CSI reports first, ensuring transmission reliability for critical information while maintaining information completeness through subsequent transmission of lower-priority reports.

The patent introduces dynamics by making the transmission timing flexible based on priority levels. Instead of fixed simultaneous transmission, the system dynamically adjusts transmission timing: high-priority reports are transmitted in earlier subframes, while lower-priority reports are transmitted in later subframes. This dynamic approach resolves the contradiction by maintaining ease of operation through standardized transmission procedures while preventing uplink channel capacity overload through priority-based time distribution.