PDCCH Detection Method for Multi-Carrier Scheduling
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Solution Overview
Problem
Current methods for PDCCH detection in communications technologies face challenges when multiple carriers are scheduled using a single piece of DCI, leading to inefficiencies in signal processing and increased complexity.
Innovation Solution
A method and apparatus for PDCCH detection where a terminal receives PDCCH configuration information from a network device to perform detection and obtain DCI, allowing for the scheduling of one or more carriers using a single DCI, with optional DCI size alignment and capability determination to optimize detection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If multiple carriers are scheduled using a single DCI, then signaling overhead is reduced, but detection complexity increases
Solution Approach 1:
The patent segments the detection process into multiple stages: first detecting PDCCH configuration information, then using that information to guide DCI detection. This segmentation allows the terminal to handle multi-carrier scheduling in a structured manner, reducing the overwhelming complexity of direct multi-carrier DCI detection while maintaining signaling efficiency
Solution Approach 2:
The patent performs preliminary detection of PDCCH configuration information before DCI detection. This preliminary action provides the terminal with necessary configuration parameters (such as search space configurations, aggregation levels, and carrier indicators) that simplify subsequent DCI detection across multiple carriers, thereby managing complexity while maintaining reduced signaling overhead
2Measurement precision
If PDCCH detection is performed based on configured parameters, then detection accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary detection and configuration of PDCCH parameters before actual DCI detection. By pre-configuring search spaces, aggregation levels, and carrier indicator values, the terminal reduces the computational burden during time-critical DCI detection, thereby maintaining high detection accuracy while reducing processing time
Solution Approach 2:
The patent enables dynamic adjustment of detection parameters based on channel conditions and traffic requirements. The terminal can adaptively select aggregation levels and search space configurations, allowing optimal balance between detection accuracy and processing time under varying operational conditions
Data Source
AI summary
This application relates to a PDCCH detection method, an apparatus, a device, and a storage medium. According to the PDCCH detection method, a terminal device receives PDCCH configuration information corresponding to a first carrier and transmitted by a network device, and performs PDCCH detection based on the PDCCH configuration information to obtain DCI. The DCI is used to schedule one or more carriers, so that one or more carriers may be scheduled by using one piece of DCI.