NR Bandwidth Part Hopping for Frequency Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing frequency resources, particularly in heterogeneous networks with varying traffic loads and device capabilities, leading to suboptimal performance and resource utilization.
Innovation Solution
Implementing frequency hopping operations for New Radio (NR) systems, allowing dynamic adjustment of bandwidth parts (BWPs) and subbands to optimize frequency usage based on traffic characteristics and device capabilities, enhancing network flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency hopping operations are implemented with dynamic BWP adjustment, then network performance and resource utilization are optimized, but system complexity and configuration overhead increase
Solution Approach 1:
The patent implements dynamic bandwidth part (BWP) adjustment where the network can switch between different BWPs based on traffic conditions. The system transitions from static frequency allocation to dynamic frequency hopping across multiple BWPs, allowing adaptive optimization of network performance while managing complexity through controlled dynamic behavior
Solution Approach 2:
The patent changes frequency allocation parameters by configuring multiple BWPs with different bandwidths and frequency locations. The system dynamically adjusts these parameters through frequency hopping operations, transforming the fixed frequency configuration into a flexible multi-parameter system that optimizes throughput and latency based on network conditions
2Adaptability or versatility
If multiple bandwidth parts are configured for frequency hopping, then frequency resource allocation is optimized, but configuration overhead and signaling complexity increase
Solution Approach 1:
The patent segments the total bandwidth into multiple bandwidth parts (BWPs), each with specific frequency ranges and characteristics. This segmentation allows independent configuration and management of different frequency resources, enabling flexible frequency hopping while organizing the complexity into manageable discrete units
Solution Approach 2:
The patent creates a universal BWP configuration framework where a set of predefined BWPs can serve multiple purposes and different traffic types. The same BWP configuration structure is reused across different frequency hopping scenarios, reducing overall configuration overhead through standardized multi-functional design
3Productivity
If frequency hopping is used to enhance network flexibility, then throughput and latency are improved, but processing complexity and implementation difficulty increase
Solution Approach 1:
The patent implements periodic frequency hopping where the system transitions between BWPs at regular intervals or based on periodic triggers. This periodic structure simplifies processing by creating predictable patterns, allowing the system to achieve throughput improvements through systematic frequency switching rather than complex adaptive algorithms
Solution Approach 2:
The patent enables semi-autonomous frequency hopping where the UE can autonomously select and switch between configured BWPs based on pre-configured criteria and network conditions. This self-service capability reduces processing complexity at the network side while maintaining throughput optimization, as the UE independently manages frequency hopping within the configured parameter space
Data Source
AI summary
A wireless device may receive configuration parameters indicating a hopping pattern of bandwidth parts (BWPs) of a cell. The wireless device may start a BWP inactivity timer in response to activating a first BWP of the cell. In response to activating the hopping pattern, the wireless device may stop the BWP inactivity timer or it may deactivate the first BWP.