Sidelink DRX Configuration Alignment for Wireless Power Saving
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Solution Overview
Problem
In wireless communication, particularly in sidelink communication, the lack of alignment between sidelink DRX (Discontinuous Reception) and Uu DRX configurations hinders efficient power saving and reliable transmission, especially when UE devices conforming to different standards (R16 and R17) communicate, leading to increased power consumption and reduced transmission reliability.
Innovation Solution
The method involves a terminal device sending sidelink DRX information to a network device, which includes sidelink DRX information of a designated sidelink address and/or sending mode, allowing the network device to align Uu DRX with sidelink DRX activation periods, thereby improving transmission reliability and power saving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If sidelink DRX and Uu DRX configurations are not aligned, then device complexity is reduced, but power consumption increases and transmission reliability decreases
Solution Approach 1:
The patent merges sidelink DRX configuration with Uu DRX configuration by having the network device configure both types of DRX parameters together. The terminal device receives and applies both configurations in a coordinated manner, ensuring that sidelink DRX activation periods are aligned with Uu DRX activation periods. This integration approach reduces power consumption by allowing the device to enter sleep mode more effectively while maintaining both sidelink and uplink/downlink communication efficiency.
2Reliability
If sidelink DRX and Uu DRX configurations are not aligned, then configuration simplicity is maintained, but transmission reliability deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device reports its DRX capability and configuration status to the network device. The network device uses this feedback to adjust and align the sidelink DRX and Uu DRX configurations appropriately. This feedback loop ensures that transmission reliability is maintained by coordinating the activation periods of different DRX types based on actual network conditions and device capabilities.
3Adaptability or versatility
If different DRX configurations are used for different standards, then adaptability is improved, but power consumption increases
Solution Approach 1:
The patent creates a universal DRX configuration framework that works across different communication standards (R16 and R17). The network device configures sidelink DRX and Uu DRX in a unified manner that is compatible with multiple standards. The terminal device applies these configurations regardless of which standard it conforms to, enabling multi-functional operation while reducing power consumption through aligned activation periods across different communication interfaces.
Data Source
AI summary
An auxiliary configuration method is performed by a terminal device, and includes: sending sidelink Discontinuous Reception (DRX) information to a network device, wherein the sidelink DRX information includes at least one of sidelink DRX information of a designated sidelink address or sidelink DRX information of a designated sending mode.