Sidelink Positioning Signal Reception with Energy-Saving Wake-Up Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sidelink communication technologies consume excessive energy for SL reception, particularly in devices with limited energy capacity, such as VRUs, due to unnecessary signaling and information exchange for SL ranging and positioning, which is not energy-efficient.
Innovation Solution
Implementing a framework for SL ranging and positioning specific configurations, including a static or offset-based SL-RP_Rx-ON time parameter configuration, allowing devices to wake up efficiently for SL reception without additional signaling exchange, using pre-configured or dynamically indicated wake-up times based on device interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices wake up continuously to monitor sidelink signals for ranging and positioning, then SL reception reliability is improved, but energy consumption increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-configuring wake-up times based on predicted signal transmission patterns. Devices calculate and store optimal wake-up schedules before actual communication occurs, allowing them to wake up only when signals are expected to be transmitted, thus reducing unnecessary energy consumption while maintaining reception reliability.
Solution Approach 2:
The patent implements periodic action through discontinuous reception (DRX) mechanisms where devices wake up at predetermined periodic intervals to monitor for sidelink signals. This periodic waking up pattern allows devices to balance between maintaining adequate monitoring for reliable SL reception and reducing overall energy consumption by sleeping between wake-up cycles.
2Adaptability or versatility
If devices perform comprehensive signal monitoring for all SL communication types, then communication completeness is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing SL communication monitoring into distinct segments or categories (e.g., safety-related communications versus general data communications). Devices can selectively wake up and monitor for specific types of signals based on their current operational needs and configured priorities, reducing the complexity of processing all possible signal types while maintaining completeness for relevant communications.
Solution Approach 2:
The patent implements local quality by allowing different devices or device components to have differentiated monitoring capabilities and wake-up behaviors based on their specific functional requirements. Critical devices (e.g., those handling safety communications) maintain comprehensive monitoring, while non-critical devices use simplified monitoring patterns, thus reducing overall system complexity while preserving communication completeness where needed.
Data Source
AI summary
A method for a user equipment in a sidelink communication. The method includes: waking up the user equipment by a configuration or preconfiguration of one or more power-on parameters of the user equipment, wherein the one or more power-on parameters are utilized for performing sidelink communications with one or more additional user equipment, and wherein the one or more power-on parameters include a default time for waking up that is predetermined by the user equipment and at least one additional time for waking up based on a determination by the user equipment or a request by the one or more additional user equipment; and after waking up the user equipment, receiving, by the user equipment, one or more sidelink signals from the one or more additional user equipment.