Sidelink Bandwidth Part Switching for Shared Uplink Resources
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Solution Overview
Problem
There is no reasonable solution for switching between sidelink communication and uplink communication in 5G technology, leading to conflicts and inefficiencies in resource allocation.
Innovation Solution
The method involves using a sidelink bandwidth part in the configured sidelink resource pool to perform switching between sidelink and uplink communications, allowing for the use of sidelink bandwidth parts in uplink time-domain resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sidelink communication and uplink communication use separate resource pools, then resource allocation clarity is improved, but resource utilization efficiency deteriorates due to inability to share resources
Solution Approach 1:
The patent merges sidelink resource pool and uplink resource pool into a unified resource pool, allowing dynamic sharing of time-frequency resources between sidelink and uplink communications. This resolves the contradiction by enabling resource flexibility while maintaining clear allocation through dynamic signaling.
Solution Approach 2:
The patent introduces dynamic resource allocation mechanisms where resource pool configurations can be adjusted in real-time based on communication demands. This allows the system to switch between sidelink and uplink resource usage dynamically, improving both clarity and efficiency.
2Productivity
If sidelink and uplink share the same time-frequency resources, then resource utilization efficiency is improved, but switching between communication modes becomes complex and conflict-prone
Solution Approach 1:
The patent introduces a base station as an intermediary that manages and coordinates resource allocation between sidelink and uplink communications. The base station uses downlink control information to dynamically assign resources, simplifying the switching mechanism while maintaining efficient resource utilization.
Solution Approach 2:
The patent changes resource allocation parameters dynamically through control signaling, allowing the system to switch between sidelink and uplink modes by modifying resource pool configuration parameters rather than using complex physical switching mechanisms.
3Reliability
If dedicated resources are allocated for sidelink communication, then communication reliability is improved, but resource flexibility deteriorates
Solution Approach 1:
The patent creates a universal resource pool that can serve both sidelink and uplink communications. The same time-frequency resources can be allocated to different communication types based on demand, achieving both reliability through guaranteed resource availability and flexibility through multi-functional usage.
Data Source
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AI summary
The present disclosure relates to the field of communications. Provided are a method and device for using a sidelink bandwidth part, an apparatus, and a storage medium. The method comprises: a terminal receiving a configuration signaling comprising a first information field, the first information field indicating a time domain resource location corresponding to a sidelink resource pool; and using a sidelink bandwidth part at the time domain resource location. The invention realizes switching between sidelink transmission and uplink transmission by using a sidelink bandwidth part, rather than an uplink bandwidth part, at a time domain resource location corresponding to a sidelink resource pool ascertained from a configuration.