DCI Configuration via Payload Size and Aggregation Level
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Solution Overview
Problem
Current methods for transmitting and receiving Downlink Control Information (DCI) in communication technologies do not consider payload size, leading to inefficient blind detection configurations, which affects the flexibility and accuracy of DCI detection by User Equipment (UE).
Innovation Solution
The method determines the Aggregation Level (AL) and number of blind detections based on corresponding relationships between DCI payload size and AL, configuring DCI accordingly, and transmits a Control Resource Set (CORESET) to the mobile communication terminal to facilitate efficient blind detection, allowing the UE to determine possible payload sizes and ALs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blind detection is used for PDCCH without considering DCI payload size, then the UE can detect DCI, but the number of blind detections increases unnecessarily
Solution Approach 1:
The patent applies parameter changes by introducing payload size as a new parameter for DCI detection. The base station configures different payload sizes for different DCI formats, and the UE uses these payload size parameters to reduce the number of blind detections needed. This transforms the detection process from considering only aggregation levels to considering both aggregation levels and payload sizes, thereby improving detection efficiency while maintaining reliability.
2Device complexity
If the same number of blind detections is configured for all DCI payload sizes, then the configuration is simple, but the detection accuracy decreases for larger payload sizes
Solution Approach 1:
The patent applies local quality by configuring different detection parameters for different payload sizes. Instead of using a uniform configuration for all DCI formats, the base station provides payload size-specific configurations that include appropriate aggregation levels and numbers of blind detections tailored to each payload size category. This allows the system to optimize detection accuracy for each local case (payload size) rather than using a one-size-fits-all approach.
3Reliability
If more blind detections are performed to ensure detection of larger payload sizes, then detection coverage improves, but power consumption increases
Solution Approach 1:
The patent reduces power consumption by changing the detection parameters based on payload size. The base station configures appropriate aggregation levels and numbers of blind detections for each payload size category, avoiding unnecessary blind detections for larger payload sizes. This parameter optimization ensures that the UE performs only the necessary number of blind detections to achieve reliable detection coverage, thereby reducing power consumption while maintaining detection reliability.
Data Source
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AI summary
The application provides methods for transmitting and receiving Downlink Control Information (DCI), and a related device. The receiving method includes: determining configuration information of to-be-transmitted DCI, based on a corresponding relationship between a DCI Aggregation Level (AL), and/or, a number of blind detections corresponding to the AL, and a payload size of the DCI; configuring the to-be-transmitted DCI, by using the configuration information; and, transmitting the to-be-transmitted DCI to a mobile communication terminal.