PDCCH Blind Detection Across Multi-Slot Monitoring Windows
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Solution Overview
Problem
The blind detection capability of terminals is inefficiently utilized in high-frequency bands due to the dispersion of detection resources across short time slots, leading to resource waste and difficulty in scheduling physical channels, particularly in communication systems above 60 GHz.
Innovation Solution
Optimizing blind detection capability by configuring it for every n time slots instead of each individual slot, where n is an integer greater than 1, allowing for flexible application of detection resources based on actual conditions, thereby maximizing the number of PDCCH candidates and non-overlapped CCEs in each n time slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blind detection capability is defined for each time slot, then the terminal can monitor PDCCH in every time slot, but the blind detection capability is dispersedly used across time slots causing waste of computing resources
Solution Approach 1:
The patent combines multiple time slots (n time slots) into a single monitoring period for blind detection. Instead of dispersing blind detection capability across individual time slots, the terminal concentrates its monitoring efforts in specific combined time slot periods where PDCCH is actually configured, thereby merging the detection opportunities and avoiding waste of computing resources in slots without PDCCH.
Solution Approach 2:
The patent introduces dynamic adaptation by allowing the terminal to flexibly adjust blind detection monitoring based on actual PDCCH configuration. The terminal can dynamically concentrate blind detection capability in time slots where PDCCH is configured and reduce or suspend monitoring in slots without PDCCH, making the detection capability utilization adaptive rather than static.
2Productivity
If the terminal concentrates blind detection capability in target time slots, then resource utilization improves, but the monitoring coverage across all time slots is reduced
Solution Approach 1:
The patent applies preliminary action by pre-configuring the terminal with information about where PDCCH will be transmitted (through RRC signaling or other configurations). This allows the terminal to advance-know which time slots will contain PDCCH and concentrate its blind detection capability in those predetermined target time slots, achieving both efficient resource utilization and adequate monitoring coverage.
Data Source
AI summary
A method for optimizing a blind detection capability is performed by a terminal, and includes: determining blind detection capability information, wherein the blind detection capability information includes a maximum number of physical downlink control channel (PDCCH) candidates monitored in n time slots under a first subcarrier spacing, and a maximum number of non-overlapped control channel elements (CCEs) in the n time slots under the first subcarrier spacing, where n is an integer greater than 1.