5G NR Subband Configuration for BWP Granularity Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in next-generation radio access technologies like 5G NR, which require improved methods for managing bandwidth parts and subbands to support diverse communication services with varying latency and reliability needs.
Innovation Solution
The method involves configuring subbands within a bandwidth part (BWP) based on specific granularities determined by an offset, bandwidth size, and system bandwidth, aligning subband boundaries with resource block groups, and optimizing subband configurations for full-duplex operations, using radio resource control parameters for UE-specific or cell-specific settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subbands are configured with fine granularity to improve signal transmission accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The bandwidth part is divided into multiple subbands with configurable granularity. Each subband can be independently configured with specific offset and bandwidth size parameters, allowing precise control over signal transmission in different frequency regions while maintaining manageable complexity through structured segmentation
Solution Approach 2:
Different subbands within the bandwidth part can have different configuration parameters (offset, bandwidth size, granularity). This allows local optimization of signal transmission accuracy in specific frequency regions without uniformly increasing complexity across the entire bandwidth, enabling targeted precision where needed
2Productivity
If subband configuration is optimized for full-duplex operation to improve communication efficiency, then productivity is improved, but device complexity increases
Solution Approach 1:
The subband configuration is made dynamic and adaptable for full-duplex operation. The granularity, offset, and bandwidth size parameters can be adjusted based on traffic conditions and interference levels, allowing the system to optimize communication efficiency in real-time without requiring permanently complex hardware structures
Solution Approach 2:
The subband configuration mechanism serves multiple functions: it enables fine-grained signal transmission, supports full-duplex operation, and provides flexibility for different service types. This multi-functionality improves overall communication efficiency without proportionally increasing device complexity, as the same configuration framework handles multiple objectives
Data Source
AI summary
In a wireless communication system according to various embodiments, a UE receives, from a base station, first configuration information for configuring a bandwidth part (BWP), receives, from the base station, an offset for configuring at least one sub-band within the BWP and second configuration information including information about the bandwidth size, and configures at least one sub-band on the basis of the second configuration information, wherein the at least one sub-band can be configured on the basis of a specific granularity determined according to the offset, the bandwidth size and a system bandwidth size.