Dynamic Sidelink Bandwidth Part Switching for Power Efficiency
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource utilization and power consumption due to fixed bandwidth allocation in sidelink communications, leading to unutilized resources and excessive processing power usage, especially in devices designed for low-power operations.
Innovation Solution
Implementing dynamic switching among sidelink bandwidth parts (SL-BWPs) allows user equipment (UEs) to adjust bandwidth usage based on data amounts, enabling efficient resource utilization and reducing power consumption by switching between SL-BWPs with varying bandwidths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed bandwidth allocation is used in sidelink communications, then device complexity is reduced and ease of operation is improved, but resource utilization efficiency deteriorates and power consumption increases
Solution Approach 1:
The patent implements dynamic bandwidth part switching in sidelink communications, allowing user equipment to switch between different bandwidth parts based on data transmission requirements. This dynamic adjustment enables the system to adapt bandwidth allocation to actual needs, improving resource utilization efficiency while maintaining manageable device complexity through standardized switching mechanisms.
2Device complexity
If fixed bandwidth allocation is used in sidelink communications, then device complexity is reduced, but power consumption increases due to unnecessary processing
Solution Approach 1:
The patent enables user equipment to activate only the necessary bandwidth part based on data transmission requirements. When data transmission is not required, the UE can switch to a smaller or inactive bandwidth part, processing only essential signals. This partial action approach reduces power consumption by avoiding unnecessary processing of full bandwidth resources while maintaining the ability to quickly activate full functionality when needed.
3Productivity
If dynamic bandwidth switching is implemented, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent changes the bandwidth parameter dynamically by switching between pre-configured bandwidth parts. The network configures multiple bandwidth parts with different bandwidth characteristics, and the UE switches between them based on data transmission requirements. This parameter change approach improves resource utilization efficiency while managing device complexity through standardized switching procedures and pre-configured options.
4Use of energy by moving object
If dynamic bandwidth switching is implemented, then power consumption is reduced by avoiding unnecessary processing, but device complexity increases
Solution Approach 1:
The patent implements periodic bandwidth part switching based on data transmission patterns. The UE monitors data transmission requirements and switches bandwidth parts periodically or event-driven, activating full bandwidth only when data transmission is required. This periodic action reduces power consumption by avoiding continuous full-bandwidth processing while managing device complexity through standardized switching triggers and procedures.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive switching information to switch from utilizing a first sidelink bandwidth part (SL-BWP) to utilizing a second SL-BWP, the first SL-BWP and the second SL-BWP being configured for sidelink communications. The UE may transmit or receive data associated with a sidelink communication based at least in part on the switching information. Numerous other aspects are provided.