Sidelink DRX Configuration for Power-Efficient Unicast Establishment
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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, with adjustments based on direct communication accept messages to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If no discontinuous reception configuration is used for sidelink communication, then communication reliability is maintained, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring discontinuous reception configurations at the network side before sidelink communication begins. The network configures multiple DRX configurations including first DRX configuration for initial communication and second DRX configuration for subsequent communication, so that the user equipment can switch between them without delay or uncertainty, thereby reducing power consumption while maintaining communication reliability.
Solution Approach 2:
The patent implements dynamics by enabling dynamic switching between different discontinuous reception configurations based on communication state. The user equipment transitions from first DRX configuration during initial sidelink communication to second DRX configuration after successful communication establishment, allowing the system to adapt power consumption patterns to actual communication needs while ensuring reliability at each stage.
2Use of energy by moving object
If discontinuous reception configuration is used during sidelink unicast establishment, then power efficiency improves, but communication delay increases
Solution Approach 1:
The patent applies segmentation by dividing the discontinuous reception configuration into multiple distinct configurations: first DRX configuration for the unicast establishment phase and second DRX configuration for the post-establishment phase. This segmentation allows the system to use more aggressive power-saving settings during establishment when necessary, while transitioning to optimized settings afterward, thereby balancing power efficiency with communication delay requirements.
Solution Approach 2:
The patent implements parameter changes by modifying DRX configuration parameters (such as on-duration, off-duration, and periodicity) between different communication phases. The network configures different DRX parameter sets for unicast establishment versus subsequent communication, allowing optimization of power efficiency during each phase while managing the trade-off with communication delay through careful parameter selection.
3Use of energy by moving object
If user equipment uses predetermined DRX configuration, then power consumption is reduced, but communication flexibility decreases
Solution Approach 1:
The patent applies universality by designing a multi-functional discontinuous reception configuration system that serves multiple communication scenarios. The same DRX configuration framework handles both unicast establishment and subsequent communication, as well as potentially groupcast and broadcast scenarios, through different configuration instances. This allows power consumption to be reduced across all scenarios while maintaining flexibility through scenario-specific configuration selection.
Solution Approach 2:
The patent implements feedback by establishing a feedback mechanism where the network monitors sidelink communication status and dynamically adjusts DRX configuration recommendations to the user equipment. Based on communication quality, traffic patterns, and establishment success, the network provides feedback to optimize DRX parameters, thereby maintaining communication flexibility while achieving power consumption reduction through data-driven configuration adjustments.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for sidelink discontinuous reception configuration. One method (800) includes initiating (802), by a first user equipment, a sidelink unicast establishment procedure with a second user equipment. The method (800) includes performing (804) sidelink communication using a predetermined sidelink discontinuous reception configuration during the sidelink unicast establishment procedure. The method (800) includes, in response to receiving a direct communication accept message, performing (806) sidelink communication based on a set of sidelink discontinuous reception configurations.