Sidelink UE Contiguous Partial Sensing for Lower-Power Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power consumption for sidelink operations, which are crucial for devices communicating directly with each other without relying on a base station.
Innovation Solution
The implementation of an adaptive low-power sensing operation in user equipment (UE) for sidelink communications, allowing devices to optimize power usage by selectively performing sensing operations based on specific conditions and requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing operations are performed continuously for sidelink resource selection, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic sensing operations where the UE performs sensing only at specific intervals rather than continuously. The gNB configures sensing windows and periodicity parameters, allowing the UE to monitor channel conditions at predetermined times while remaining silent between these intervals, thus reducing power consumption while maintaining adequate reliability for resource selection.
Solution Approach 2:
The patent introduces dynamic sensing operation modes where the UE can adjust its sensing behavior based on current communication conditions. The system supports multiple sensing modes (e.g., full sensing, partial sensing, no sensing) that can be dynamically selected based on traffic patterns, channel conditions, and power constraints, enabling adaptive optimization between reliability and power consumption.
2Productivity
If sensing operations are performed frequently for resource selection, then communication performance is maintained, but device battery life decreases
Solution Approach 1:
The patent configures sensing operations to occur periodically rather than continuously, with the gNB controlling the sensing window duration and periodicity. This allows the UE to maintain communication efficiency by performing sensing at strategically determined intervals while significantly extending battery life by avoiding continuous operation.
Solution Approach 2:
The patent enables dynamic adjustment of sensing parameters such as sensing window length, periodicity, and sensing mode based on current system conditions. The gNB can modify these parameters to optimize the balance between communication performance and power consumption, adapting the sensing frequency to match actual traffic needs and channel conditions.
3Loss of energy
If adaptive sensing operation is implemented, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the gNB receives information about UE power constraints and communication needs, then adjusts sensing configuration accordingly. This feedback loop enables the system to automatically optimize sensing operation complexity based on actual conditions, reducing the burden on the UE while maintaining effective resource selection.
Solution Approach 2:
The patent performs preliminary configuration of sensing parameters and modes through gNB signaling before the UE needs to perform sensing operations. By pre-configuring the sensing window, periodicity, and available modes, the system reduces the complexity burden on the UE during actual operation, as the UE simply needs to execute the pre-defined sensing protocol rather than making real-time decisions.
Data Source
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AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Methods and apparatuses for adaptive low-power sensing operations for sidelink (SL) communications in a wireless communication system. A method of operating a user equipment (UE) includes operating with partial sensing; operating in a resource pool configured for the partial sensing; and triggering for a SL resource selection in a slot n. The method further includes selecting Y candidate slots for the SL resource selection and performing, in a sensing window, a contiguous partial sensing (CPS). A first of the selected Y candidate slots is a slot. The sensing window is in contiguous slots within the resource pool relative to the slot.