UE Dynamic Power Adaptation via Wake-Up Signals
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Solution Overview
Problem
Current network energy saving methods, such as semi-static adaptation of transmission power and spatial elements, face challenges in timely tracking of traffic arrival, buffer status, and channel conditions, leading to transmission delays and performance reductions.
Innovation Solution
A method and apparatus for dynamic adaptation of transmission power and spatial elements using physical layer signaling, such as wake-up signals and downlink control information, to enable efficient link monitoring and recovery, and PDCCH monitoring, allowing for real-time adjustments in communication operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If semi-static adaptation of transmission power is applied, then network energy saving is improved, but transmission delay increases and performance reduces due to inability to track traffic and channel conditions timely
Solution Approach 1:
The patent applies dynamic adaptation by enabling the UE to monitor link quality and trigger power adaptation based on real-time channel conditions. The UE autonomously adjusts transmission power when detecting link degradation, replacing the semi-static gNB-controlled approach with a dynamic UE-initiated mechanism that responds timely to traffic and channel variations while maintaining energy efficiency.
Solution Approach 2:
The patent implements feedback mechanisms where the UE monitors downlink link quality and provides uplink feedback to the gNB. This feedback loop enables the gNB to adjust transmission power dynamically based on actual channel conditions, resolving the contradiction between energy saving and timely response by making adaptation decisions based on real-time feedback rather than semi-static configurations.
2Use of energy by stationary object
If semi-static adaptation of spatial elements is applied, then network energy saving is improved, but transmission delay increases and performance reduces due to RRC reconfiguration requirements
Solution Approach 1:
The patent enables dynamic spatial element adaptation where the UE can autonomously select and switch between different spatial filters or beams based on real-time channel conditions. This replaces the semi-static RRC reconfiguration approach with a dynamic mechanism that allows rapid adaptation without complex signaling, reducing both energy consumption and operational complexity.
Solution Approach 2:
The patent implements self-service by enabling the UE to autonomously perform spatial element adaptation without requiring gNB-controlled RRC reconfiguration. The UE independently monitors channel quality and adjusts its spatial filtering parameters, eliminating the need for complex network-side reconfiguration procedures while achieving timely adaptation.
3Productivity
If dynamic adaptation of transmission power is applied, then transmission delay is reduced and performance is improved, but network energy consumption increases
Solution Approach 1:
The patent applies partial adaptation by having the UE monitor link quality and trigger power adjustments only when necessary (e.g., when link degradation is detected). Instead of continuous dynamic adaptation, the system performs adaptations selectively based on actual needs, achieving timely response when required while minimizing unnecessary energy consumption during stable channel conditions.
4Productivity
If dynamic adaptation of spatial elements is applied, then transmission delay is reduced and performance is improved, but network energy consumption increases
Solution Approach 1:
The patent implements partial spatial adaptation where the UE autonomously adjusts spatial filters only when link degradation is detected. Instead of continuous dynamic adaptation, the system performs spatial adjustments selectively based on channel conditions, achieving timely response when needed while minimizing energy consumption during stable conditions.
Data Source
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AI summary
A method of communication operation performed by a user equipment (320) is provided. The method comprises: receiving a configuration (S600), wherein the configuration comprises a resource setting; receiving a first set of resource (S610) comprising at least one resource, wherein the first set of resource is configured via the configuration; and performing a first operation (S620), wherein the first operation is related to the first set of resource.