Dynamic Spectrum Allocation in Multi-RAT Base Stations
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Solution Overview
Problem
Modern multi-RAT radio base stations are inefficient as they statically configure resource allocation between different radio access technologies, leading to suboptimal use of resources and forcing user equipment to use less advanced technologies, resulting in inefficient network performance.
Innovation Solution
A method and radio base station that dynamically allocates radio resources based on load across different radio access technologies, allowing frequency bands to be allocated to the technology with higher demand, thereby optimizing resource utilization and improving network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-RAT radio base stations use static configuration for resource allocation between different radio access technologies, then device complexity is reduced and ease of operation is improved, but resource utilization efficiency deteriorates and network performance deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where the radio base station continuously monitors load conditions in different cells and dynamically adjusts the allocation of frequency bands between radio access technologies. This allows the system to adapt resource distribution in real-time based on actual network conditions, transforming the static configuration into a dynamic one that optimizes resource utilization efficiency while maintaining manageable complexity through automated load-based decision making
Solution Approach 2:
The patent changes the allocation parameters of frequency bands between different radio access technologies based on load conditions. By monitoring load parameters in each cell and adjusting the frequency band allocation accordingly, the system optimizes resource utilization without requiring complex manual configuration, as the parameter changes are automatically driven by load measurements
2Adaptability or versatility
If multi-RAT radio base stations statically allocate frequency bands to specific radio access technologies, then reliability of service is improved through guaranteed resources, but adaptability to varying network conditions deteriorates
Solution Approach 1:
The system dynamically adjusts frequency band allocation between radio access technologies based on real-time load monitoring. When load conditions change in different cells, the base station automatically reallocates frequency bands to maintain service reliability. This dynamic adaptation ensures that each radio access technology receives adequate resources according to actual demand, preventing service degradation while maintaining flexibility to respond to varying network conditions
Solution Approach 2:
The patent implements a feedback mechanism where the radio base station continuously monitors load conditions in different cells and uses this information to adjust frequency band allocation. The load monitoring provides feedback about network conditions, and this feedback drives the dynamic reallocation of resources, creating a closed-loop system that maintains service reliability while adapting to changing conditions
3Productivity
If load-based dynamic allocation of frequency bands is implemented, then resource utilization efficiency is improved and network performance is improved, but device complexity and control complexity increase
Solution Approach 1:
The radio base station autonomously performs load monitoring and frequency band allocation decisions without requiring external control or complex manual configuration. The system serves itself by automatically detecting load conditions and making reallocation decisions based on predefined criteria, which simplifies the overall control architecture despite the dynamic nature of the resource allocation. This self-service approach maintains high network performance while avoiding the complexity of external control systems
Data Source
AI summary
Embodiments herein disclose a method in a radio base station (12) for allocating a radio resource to be used for communication in a radio communications network, which radio base station (12) serves a first cell (13) of a first radio access technology and a second cell (15) of a second radio access technology. The first cell (13) and second cell (15) are comprised in the radio communications network, and which radio base station (12) controls a radio resource that supports communication over a frequency band The method comprises determining (1010) a load in at least one of the first cell (13) and second cell (15), and allocating (1020) the radio resource supporting communication over the frequency band to the first radio access technology of the first cell (13) or the second radio access technology of the second cell (15) based on the determined load.