UE Semi-Persistent CSI Reporting Prioritization
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Solution Overview
Problem
Current wireless communication systems face limitations in efficiently controlling downlink and uplink transmissions, leading to suboptimal communication capacity, speed, and flexibility.
Innovation Solution
The implementation of advanced communication methods, including the use of DCI formats for scheduling PUSCH and PDSCH transmissions, prioritization of MAC Control Elements, and efficient resource allocation strategies to manage semi-persistent CSI reporting and configured grants, ensuring optimal utilization of time, frequency, and space resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If semi-persistent CSI reporting and configured grants are scheduled without prioritization, then resource allocation flexibility is improved, but transmission collisions increase
Solution Approach 1:
The patent applies preliminary action by establishing prioritization rules in advance for different transmission types. The UE and base station are pre-configured with priority levels for semi-persistent CSI reporting, configured grants, and other uplink transmissions. When collisions are detected, the pre-defined priority rules automatically determine which transmission proceeds, eliminating the need for real-time negotiation and reducing collision resolution latency.
Solution Approach 2:
The patent segments uplink transmissions into distinct priority categories. Semi-persistent CSI reporting, configured grants, and other uplink data are assigned different priority levels. This segmentation allows the system to treat different transmission types differently during resource allocation and collision resolution, enabling fine-grained control over resource usage while maintaining overall system flexibility.
2Ease of operation
If multiple MAC Control Elements are transmitted with equal priority, then transmission simplicity is improved, but critical control information may be lost
Solution Approach 1:
The patent applies local quality by assigning different priority levels to different MAC Control Elements based on their criticality. Critical control information such as uplink grant acknowledgments and semi-persistent CSI reporting are assigned higher priorities, while less critical information receives lower priorities. This localized differentiation ensures that critical information is preserved during resource constraints while maintaining relatively simple transmission procedures.
3Device complexity
If communication structure remains traditional, then system complexity is reduced, but communication capacity and speed are limited
Solution Approach 1:
The patent introduces dynamics into the communication structure by implementing flexible prioritization rules that can be dynamically adjusted based on traffic conditions and QoS requirements. The priority levels and resource allocation parameters can be modified through RRC reconfiguration, allowing the system to adapt to changing communication demands while maintaining a relatively simple base structure. This dynamic capability enables improved communication capacity without requiring a complete structural overhaul.
Data Source
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AI summary
A user equipment (UE) is described. The user equipment includes receiving circuitry configured to receive a radio resource control (RRC) signal comprising first information. The receiving circuity is also configured to monitor a physical downlink control channel (PDCCH). The user equipment also includes transmitting circuitry configured to perform semi-persistent channel state information (SP-CSI) reporting. The user equipment also includes processing circuitry configured to drop the SP-CSI reporting based on that the SP-CSI reporting is being performed without multiplexing with an uplink shared channel (UL-SCH) and the SP-CSI reporting overlaps in time with a positive scheduling request (SR) transmission. The processing circuitry is also configured to drop the SP-CSI reporting based on that the SP-CSI reporting overlaps in time with an UL-SCH transmission in one symbol.