PDCCH and CCE Counting for Multi-Cell Scheduling Flexibility
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Solution Overview
Problem
In 5G NR, the inconsistency in the number of PDCCH candidates and non-overlapping CCEs monitored by terminals leads to a waste of detection capability due to repeated counting across multiple cells scheduled by a single DCI, reducing the scheduling flexibility.
Innovation Solution
A method for determining the number of monitored PDCCH candidates and non-overlapping CCEs based on predefined rules or network-side indication, focusing on a first cell or multiple cells, where the first DCI schedules PDSCH and/or PUSCH, allowing selective counting to avoid redundant detection across cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the DCI is counted into the number of blind detection PDCCH candidates and the number of non-overlapping CCE of all scheduled cells, then the scheduling flexibility is improved, but the terminal's PDCCH detection capability is wasted
Solution Approach 1:
The patent segments the counting of PDCCH candidates and CCEs by separating the scheduling cell from the monitored cells. The DCI is counted only for the scheduling cell, not for all scheduled cells, thereby dividing the resource accounting to avoid duplication and improve detection capability utilization while maintaining scheduling flexibility.
Solution Approach 2:
The patent applies local quality by differentiating the treatment of PDCCH candidates and CCEs in different cells. The scheduling cell receives full counting credit, while scheduled cells do not, creating a localized quality difference that optimizes overall system performance by preventing capability waste.
2Adaptability or versatility
If the number of PDCCH candidates and non-overlapping CCEs is counted for all scheduled cells, then the scheduling flexibility is enhanced, but the terminal detection capability is wasted
Solution Approach 1:
The patent segments the resource counting process by identifying a specific scheduling cell versus multiple scheduled cells. The DCI format is counted only in the scheduling cell's resources, creating a segmented approach that prevents duplicate counting and improves detection capability productivity while preserving the ability to schedule multiple cells flexibly.
3Adaptability or versatility
If repeated counting is performed across multiple cells scheduled by a single DCI, then the scheduling flexibility is improved, but the detection capability is wasted
Solution Approach 1:
The patent extracts the counting function from all scheduled cells and concentrates it only in the scheduling cell. By taking out the redundant counting operations from scheduled cells and keeping them only in the scheduling cell, the system maintains scheduling flexibility while eliminating detection capability waste.
Data Source
AI summary
A method for determining a number of monitoring, a terminal, and a storage medium are provided, the method includes: according to a predefined rule or indication information of a network side, for a first cell or multiple cells, counting a number of monitored physical downlink control channel (PDCCH) candidates and/or a number of non-overlapping control channel elements (CCEs) carrying first downlink control information (DCI); where the first DCI is configured to schedule a physical downlink shared channel (PDSCH) and/or physical uplink shared channel (PUSCH) in the multiple cells.