Sidelink Bandwidth Part Configuration for Redcap Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sidelink bandwidth part configurations in 5G NR systems, particularly for Redcap terminals, are either too restrictive, limiting communication performance due to uniform configurations that do not adapt to the terminals' capabilities, or overly flexible, leading to bandwidth exceeding the terminal's capabilities and causing monitoring issues.
Innovation Solution
Configuring a plurality of sidelink bandwidth parts with specific bandwidth capabilities to match the capabilities of different terminal types, allowing Redcap terminals to perform sidelink communication within their applicable bandwidths, thereby enhancing communication performance and compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform sidelink bandwidth part configuration is applied to all terminals, then system complexity is reduced and configuration is simplified, but communication performance deteriorates because it does not adapt to different terminal capabilities
Solution Approach 1:
The patent segments the sidelink bandwidth part configuration into multiple types (first type and second type) corresponding to different terminal capabilities. Redcap terminals receive first type configuration with narrower bandwidth, while full-capability terminals receive second type configuration with wider bandwidth. This segmentation resolves the contradiction by allowing simplified configuration within each segment while optimizing performance across different terminal types.
Solution Approach 2:
The patent applies local quality by providing different bandwidth part configuration parameters to different terminals based on their capabilities. Instead of a uniform configuration, each terminal type receives locally optimized parameters (first bandwidth part configuration for Redcap, second for full-capability), thereby improving communication performance without significantly increasing overall system complexity through capability-based differentiation.
2Productivity
If sidelink bandwidth part configuration is optimized for full-capability terminals, then communication performance is improved, but compatibility deteriorates because Redcap terminals cannot handle the bandwidth
Solution Approach 1:
The patent implements dynamic configuration adaptation where the network device determines terminal capability and dynamically assigns appropriate bandwidth part configuration types. Redcap terminals are assigned first type configuration with bandwidth within their capability range, while full-capability terminals receive second type configuration. This dynamic adaptation resolves the contradiction by optimizing performance for each terminal type while ensuring compatibility through capability-matched configuration.
Solution Approach 2:
The patent changes key configuration parameters (bandwidth part bandwidth, subcarrier spacing, cyclic prefix length) based on terminal capability. By adjusting these parameters to match Redcap terminal limitations while maintaining full-capability configurations for other terminals, the system achieves both improved performance and compatibility through parameter adaptation.
3Adaptability or versatility
If narrower bandwidth part is configured for Redcap terminals, then compatibility is improved, but communication performance deteriorates due to limited bandwidth
Solution Approach 1:
The patent creates a universal configuration framework that serves multiple terminal types through two configuration types. The first type configuration optimizes compatibility for Redcap terminals with narrower bandwidth, while the second type provides full performance for other terminals. This multi-functional configuration system resolves the contradiction by ensuring each terminal type operates at optimal performance within its capability constraints.
4Productivity
If wider bandwidth part is configured to support high data rates, then communication performance is improved, but device complexity increases due to more complex bandwidth management
Solution Approach 1:
The patent applies preliminary action by pre-defining two distinct bandwidth part configuration types with optimized parameters for different terminal capabilities. The network device performs preliminary capability assessment and assigns the appropriate pre-configured type, avoiding complex real-time bandwidth management. This resolves the contradiction by enabling high data rates for full-capability terminals through pre-optimized second type configuration while keeping management simple through type-based assignment.
Data Source
AI summary
A method for sidelink bandwidth part configuration, performed by a first terminal, and including: determining sidelink bandwidth part configuration (BWP) information. The sidelink BWP configuration information is used for indicating a plurality of sidelink BWPs.