Sidelink DRX Configuration Rules for UE Dormancy in V2X
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Solution Overview
Problem
Existing DRX mechanisms are not applicable to device-to-device (D2D), vehicle-to-vehicle (V2V), and vehicle-to-everything (V2X) communication systems, leading to excessive energy consumption due to inconsistent DRX configurations among UEs, which keeps them in a continuous listening state.
Innovation Solution
Implementing a preset configuration rule to limit the DRX configuration range for UEs, ensuring they can enter a dormant state by selecting a first DRX configuration within a small range, thereby reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If each UE independently specifies its own DRX configuration, then each UE can optimize its own energy consumption, but different UEs specify different DRX configurations for the first UE, preventing it from entering dormant state and increasing energy consumption
Solution Approach 1:
The patent changes the DRX configuration parameters from being independently specified by each UE to being determined by a preset configuration rule that all UEs follow. This standardization of parameters ensures that multiple UEs can coordinate their DRX cycles, allowing the first UE to successfully enter dormant states and reduce energy consumption.
Solution Approach 2:
The patent introduces a universal preset configuration rule that serves all UEs in the system regardless of their individual preferences. This universal rule creates a common DRX configuration framework that enables coordinated energy saving across multiple UEs while maintaining system-wide compatibility.
2Use of energy by moving object
If DRX mechanism is applied to D2D, V2V, and V2X communication systems, then energy consumption can be reduced, but existing DRX mechanisms are not applicable to these systems
Solution Approach 1:
The patent adapts the DRX mechanism for D2D, V2V, and V2X systems by changing the configuration approach from network-controlled to preset rule-based. This parameter change in the configuration mechanism enables energy saving functionality in these specific communication contexts where traditional DRX is not applicable.
Solution Approach 2:
The patent segments the DRX configuration into UE-specific parameters and common preset rules. This segmentation allows the system to maintain individual UE requirements while following a unified configuration framework that is specifically designed for D2D, V2V, and V2X communication scenarios.
Data Source
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AI summary
The present application discloses a sidelink (SL) parameter configuration method and apparatus, user equipment (UE), a chip and a storage medium. Said method comprises: determining a first discontinuous reception (DRX) configuration of first UE; and performing, according to the first DRX configuration, DRX of data sent by second UE. In this way, a DRX configuration range is pre-planned by means of a preset configuration rule, and selectable DRX configurations are limited to a small range, so that according to the first DRX configuration determined by the preset configuration rule, the first UE can solve the problem that different UE configure different DRX configurations for the first UE, preventing the first UE from being always in an On Duration state, and reducing energy consumption.