5G RF Band Selection Service for Standalone and Non-Standalone Networks
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Solution Overview
Problem
The challenge in 5G radio access networks is managing radio frequency band selection effectively across different configurations to optimize performance metrics such as accessibility, congestion, latency, and throughput, particularly due to varying propagation characteristics and coverage areas of different frequency bands.
Innovation Solution
A radio frequency band selection service is implemented that determines whether a given band is a service band or a coverage band based on threshold values and criteria, allowing for dynamic selection between bands in idle and connected modes, and standalone or non-standalone services, using System Information Block messages to provide band selection information to end devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If higher frequency bands are used, then throughput is improved, but coverage area deteriorates
Solution Approach 1:
The patent implements dynamic band selection that adapts to changing network conditions and device locations. The system continuously monitors signal quality, congestion levels, and service requirements to dynamically switch between frequency bands, allowing the network to optimize between throughput and coverage based on real-time conditions rather than using fixed band assignments
Solution Approach 2:
The patent applies different frequency bands to different geographical locations and service scenarios. Lower frequency bands are deployed in areas requiring extensive coverage, while higher frequency bands are deployed in areas requiring high throughput. This local optimization allows each region to use the most appropriate band for its specific requirements
2Area of stationary object
If lower frequency bands are used, then coverage area is improved, but throughput deteriorates
Solution Approach 1:
The system dynamically switches from lower frequency bands to higher frequency bands when devices move into areas with good signal quality or when high throughput services are required. This dynamic adaptation allows the network to maximize coverage when needed while switching to high-throughput modes when conditions permit
Solution Approach 2:
The patent creates a multi-functional band selection system that can serve multiple purposes: lower bands provide coverage for basic connectivity, while higher bands provide throughput for data-intensive services. The same infrastructure supports both coverage and capacity functions by appropriately selecting bands based on service requirements
3Reliability
If dynamic band selection is implemented, then service quality is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where the network automatically performs band selection based on pre-configured criteria and real-time measurements. The device follows network instructions for band selection rather than independently making complex decisions, reducing device complexity while maintaining service quality through network-controlled optimization
4Adaptability or versatility
If multiple frequency bands are configured, then adaptability is improved, but network complexity increases
Solution Approach 1:
The patent segments the frequency spectrum into distinct bands with specific characteristics and use cases. Each band is configured for particular service types or geographical areas, allowing the network to manage complexity by treating different bands as separate, manageable units rather than a monolithic system
Solution Approach 2:
The system changes operational parameters (frequency band selection) based on network conditions, service requirements, and device capabilities. This parameter-based adaptation allows the network to maintain configurability and respond to changing conditions without requiring fundamental architectural changes
Data Source
AI summary
A method, a system, and a non-transitory storage medium are described in which a radio frequency band selection service is provided. The radio frequency band selection service may include a default service band, a default coverage band, and a threshold value that allows an end device to select a radio frequency band to camp on when in an idle mode, select a radio frequency band to obtain service when in a connected mode, and select stand-alone or non-stand-alone services.