Configurable PDCCH Candidates for PEI Detection
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Solution Overview
Problem
The complexity of detecting Paging Early Indication (PEI) in the Physical Downlink Control Channel (PDCCH) by user equipment (UE) in 5G NR networks leads to high power consumption and unnecessary energy expenditure due to inefficient detection processes.
Innovation Solution
The method involves receiving higher layer signaling from the network to configure a configurable PDCCH candidate number for PEI procedures in non-active modes, enabling blind decoding to detect PEI in PDCCH, and determining associated parameters such as DM-RS indications and UE group indices, optimizing the detection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs blind decoding to detect PEI in PDCCH under non-active mode, then the UE can detect paging early indication, but the detection complexity becomes too high causing unnecessary power consumption
Solution Approach 1:
The patent changes the detection parameters by introducing configurable PDCCH candidate numbers that can be adjusted based on network conditions and UE states. Instead of fixed blind decoding attempts, the UE adapts the number of candidates to monitor, reducing unnecessary decoding operations and thereby lowering power consumption while maintaining PEI detection capability.
Solution Approach 2:
The patent makes the PDCCH candidate configuration dynamic rather than static. The network can update the configurable candidate numbers through higher layer signaling, allowing the UE to adapt its detection behavior to current traffic conditions and priority levels, optimizing the balance between detection accuracy and energy consumption.
2Reliability
If the UE monitors all PDCCH candidates, then no paging messages are missed, but the detection process becomes complex and inefficient
Solution Approach 1:
The patent introduces configurable parameters for PDCCH candidate monitoring, allowing the network to adjust the number of candidates based on priority levels and traffic conditions. This parameterization enables the system to maintain high reliability for important paging messages while reducing the monitoring burden for less critical traffic, thereby simplifying the detection process.
Solution Approach 2:
The patent applies different monitoring configurations to different PDCCH candidates based on their priority and importance. High-priority paging candidates are monitored with higher reliability settings, while lower-priority candidates use reduced monitoring configurations. This local differentiation optimizes the balance between reliability and complexity.
Data Source
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AI summary
Methods and a user equipment (110), UE, are provided for scheduling for PDCCH PEI detection. In particular, a base station (121), BS, can transmit a higher layer signaling (1210) to a UE (110). The higher layer signaling (1210) includes a configuration of at least one configurable PDCCH candidate number for PEI procedure used under a non-active mode. After receiving the higher layer signaling (1210), the UE (110) performs blind decoding under the non-active mode according to the configuration of the at least one configurable PDCCH candidate number.