CSI Report Prioritization for PUCCH Capacity Constraints

The patent segments the feedback transmission by dividing CSI reports into different priority levels (first priority, second priority, third priority). This segmentation allows the UE to handle multiple CSI reports with limited capacity by transmitting higher priority reports first, preventing capacity overflow while maintaining essential feedback quality.

The patent applies local quality by assigning different priorities to different CSI reports based on their importance. Critical CSI reports (e.g., those for active downlink carriers) receive higher priority and are guaranteed transmission, while less critical reports receive lower priority. This ensures that limited transmission capacity is allocated to the most important feedback information.

The patent implements preliminary action by pre-configuring priority levels for different CSI reports before transmission. The UE and eNodeB agree on priority assignments in advance, so when multiple CSI reports need to be transmitted, the UE can automatically select which reports to send based on pre-established priority rules without complex real-time decision-making.

The patent uses parameter changes by introducing a priority parameter that categorizes CSI reports. This simple parameter change transforms the complex problem of selecting which CSI reports to transmit into a straightforward comparison of priority values, significantly reducing the computational complexity at the UE.