Power-Saving Signal Timing for UE Paging and PDCCH Detection
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Solution Overview
Problem
Existing technologies lack effective methods for reducing power consumption in user equipment (UE) during the detection of paging signals and physical downlink control channels (PDCCH) in both RRC_IDLE and RRC_CONNECTED states, leading to inefficient power usage.
Innovation Solution
Implementing a power-saving signal detecting method that determines, based on channel conditions, whether to detect power-saving signals, and configuring time-domain resources for these signals, using threshold settings and target intervals to optimize power consumption and communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE continuously detects paging signals and PDCCH to ensure communication reliability, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) mechanism where UE alternates between active detection periods and sleep periods. During DRX cycles, UE detects paging signals and PDCCH only at specific intervals rather than continuously, reducing power consumption while maintaining communication reliability through periodic monitoring.
Solution Approach 2:
The patent introduces wake-up signals (WUS) that are detected before the actual paging signal or PDCCH. By detecting WUS first, UE can determine in advance whether to activate full detection mode, thereby avoiding unnecessary power consumption while ensuring communication reliability when needed.
2Use of energy by moving object
If UE detects power-saving signals to reduce power consumption, then power consumption is reduced, but detection complexity increases
Solution Approach 1:
The patent segments the detection process into multiple stages: first detecting wake-up signals (simple detection), then conditionally detecting paging signals or PDCCH (complex detection) only when WUS indicates activity is needed. This segmentation reduces overall detection complexity by avoiding full detection in all cases.
Solution Approach 2:
The patent implements dynamic detection behavior where UE adjusts its detection activity based on WUS indications and channel conditions. The detection complexity varies dynamically - simple WUS detection always, followed by conditional complex detection only when necessary, optimizing the balance between power consumption and detection capability.
3Ease of operation
If UE blindly detects paging signals and PDCCH without channel condition assessment, then detection simplicity is maintained, but power consumption increases
Solution Approach 1:
The patent performs preliminary channel condition assessment and WUS detection before executing full paging signal or PDCCH detection. This preliminary action provides guidance on whether subsequent detection is necessary, maintaining simplicity for the majority of cases while reducing power consumption by avoiding unnecessary detections.
Solution Approach 2:
The patent enables UE to autonomously determine detection behavior based on WUS indications and channel conditions. UE self-adjusts its detection activity without network intervention, maintaining operational simplicity while optimizing power consumption through intelligent, condition-based detection decisions.
Data Source
AI summary
A resource determining method includes: determining a time-domain resource for a target signal according to a target time interval. The target time interval includes at least one of a first time interval, a second time interval, or a third time interval. The first time interval is a time interval between a power-saving signal and a PDCCH associated with the power-saving signal. The second time interval is a time interval between the power-saving signal and a first signal. The third time interval is a time interval between the PDCCH associated with the power-saving signal and the first signal. The first signal is a signal used for downlink synchronization or RRM measurement or beam management. The target signal includes at least one of the power-saving signal or the first signal.