Sidelink Resource Pool Configuration with Shared SL BWP Parameters
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Solution Overview
Problem
Existing BWP configuration in new radio (NR) systems only consider communication between terminal devices and the network, neglecting sidelink communication between different terminal devices.
Innovation Solution
A sidelink resource configuration method that uses a common parameter for all resource pools in an SL BWP, allowing terminal devices to configure resource pools for sidelink communication, reducing signaling overheads by indicating this parameter for all pools within the SL BWP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate signaling is configured for each resource pool, then resource pool configuration flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent merges the configuration of multiple resource pools into a single SL BWP configuration. Instead of configuring each resource pool independently with separate signaling, the invention combines them under a unified SL BWP structure that shares common parameters (first parameters) across all resource pools, thereby reducing signaling overhead while maintaining configuration flexibility through shared parameter inheritance.
Solution Approach 2:
The SL BWP configuration serves as a universal configuration structure that can accommodate multiple resource pools simultaneously. The first parameters configured at the SL BWP level are universally applied to all resource pools within that BWP, enabling a single configuration mechanism to fulfill multiple resource pool configuration needs without requiring separate signaling for each pool.
2Quantity of substance
If common parameters are configured for all resource pools in SL BWP, then signaling overhead is reduced, but resource pool individualization capability deteriorates
Solution Approach 1:
The patent segments parameters into two categories: first parameters (common parameters) that are shared across all resource pools at the SL BWP level, and second parameters (dedicated parameters) that are specific to each resource pool. This segmentation allows common configurations to be applied universally while preserving the ability to customize individual resource pools with pool-specific parameters when needed.
Solution Approach 2:
The invention applies local quality by allowing different parameter types at different levels of the configuration hierarchy. Common first parameters provide uniform configuration across all resource pools, while dedicated second parameters provide localized customization for specific resource pools, enabling both efficiency and flexibility in the configuration system.
3Device complexity
If BWP configuration only considers terminal-network communication, then network control is simplified, but sidelink communication support is lost
Solution Approach 1:
The patent introduces dynamic adaptability to the BWP configuration by enabling it to serve dual purposes: traditional terminal-network communication and sidelink communication between terminals. The SL BWP configuration can dynamically accommodate different communication scenarios by configuring appropriate resource pools within the BWP structure, allowing the system to adapt to different communication modes without increasing overall control complexity.
Data Source
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AI summary
This application provides a sidelink resource configuration method and apparatus. The method includes: configuring, by a network device, sidelink bandwidth part SL BWP configuration information for a terminal device, where the SL BWP configuration information is used to indicate a common first parameter of M resource pools in the SL BWP; and configuring, by the terminal device, the M resource pools in the SL BWP based on the SL BWP configuration information in a process of configuring the resource pools in the SL BWP, where the M resource pools have at least one same parameter, and the at least one parameter is determined based on the first parameter. Therefore, communication between different terminal devices can be implemented by configuring the resource pools in the SL BWP.