Sidelink DRX Configuration for Reliable Low-Power Unicast Setup
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Solution Overview
Problem
User equipment lacks a clear discontinuous reception configuration for sidelink communications, leading to inefficiencies and increased power consumption.
Innovation Solution
Implementing a predetermined sidelink discontinuous reception configuration during sidelink unicast establishment procedures and adjusting based on direct communication accept messages to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment uses continuous reception for sidelink communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) for sidelink communication, where the receiving UE periodically wakes up to monitor for communications during DRX active times and enters sleep mode during DRX inactive times. This periodic action allows the system to maintain communication reliability during active periods while significantly reducing power consumption during inactive periods, directly resolving the contradiction between continuous reception reliability and power efficiency.
2Use of energy by moving object
If user equipment uses discontinuous reception during sidelink unicast establishment, then power efficiency is improved, but communication reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by configuring DRX parameters and establishing DRX active times before sidelink unicast communication begins. The receiving UE is pre-configured with DRX configuration information, allowing it to know in advance when to wake up and monitor for communications. This ensures that even with discontinuous reception, the UE is reliably present during critical communication establishment phases while maintaining power efficiency during non-critical periods.
3Ease of operation
If user equipment does not have a clear discontinuous reception configuration, then ease of operation is maintained, but power consumption increases
Solution Approach 1:
The patent implements feedback mechanisms where the receiving UE sends DRX feedback information to the transmitting UE, and the network configures DRX parameters based on communication conditions. This feedback loop allows the system to automatically optimize DRX configuration without requiring manual intervention, maintaining ease of operation while achieving significant power savings through optimized discontinuous reception patterns.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for sidelink discontinuous reception configuration. One method includes initiating, by a first user equipment, a sidelink unicast establishment procedure with a second user equipment. The method includes performing sidelink communication using a predetermined sidelink discontinuous reception configuration during the sidelink unicast establishment procedure. The method includes, in response to receiving a direct communication accept message, performing sidelink communication based on a set of sidelink discontinuous reception configurations.