Autonomous Radio Resource Allocation in Shared Frequency Bands
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems with shared frequency bands, base stations have limited radio resources, leading to restricted mobility and complex network infrastructure due to the need for inter-base station communication to dynamically allocate resources, which cannot adapt to varying application needs.
Innovation Solution
Each base station autonomously estimates and allocates radio resources based on quality-of-service parameters, using over-amplification of predefined radio elements to determine occupation rates and select underutilized radio blocks for allocation, allowing for dynamic and independent management of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If base stations share fixed frequency channels in a predetermined frequency band, then each base station has limited radio resources allocated to it, but the number of base stations that can establish links with mobile stations is restricted
Solution Approach 1:
Each base station autonomously senses the occupation rates of radio blocks and allocates radio resources independently without requiring dialog with other base stations. The base station itself performs the functions of detecting available resources and making allocation decisions, eliminating the need for complex inter-base station communication infrastructure.
Solution Approach 2:
The patent replaces the mechanical dialog system between base stations with a signal-based sensing mechanism. Instead of using wire connections or radio paths for resource negotiation, base stations use signal processing to sense occupation rates of radio blocks directly from the shared frequency band, substituting physical communication infrastructure with electromagnetic field sensing.
2Adaptability or versatility
If base stations implement dialog through wire connection or radio path to dynamically allocate radio resources, then radio resources can be shared more flexibly, but the network infrastructure becomes more complex and mobility is restricted
Solution Approach 1:
Each base station independently senses radio block occupation rates and allocates resources autonomously based on sensed information and quality-of-service parameters. This self-service approach eliminates the need for complex dialog protocols and inter-base station communication infrastructure, simplifying system implementation while maintaining dynamic resource allocation capability.
Solution Approach 2:
The base station continuously senses occupation rates of radio blocks and uses this feedback information to dynamically adjust resource allocation decisions. The sensing mechanism provides real-time feedback on resource usage, enabling adaptive allocation without requiring complex negotiation protocols between base stations.
3Device complexity
If base stations use fixed frequency channel allocation, then network infrastructure is simpler, but radio resources cannot adapt to varying application needs
Solution Approach 1:
The patent introduces dynamic resource allocation by allowing base stations to sense occupation rates of radio blocks and allocate resources based on current system conditions and quality-of-service requirements. This transforms the static frequency channel allocation into a dynamic system that adapts to varying application needs while maintaining infrastructure simplicity through autonomous base station operation.
Solution Approach 2:
The base station changes allocation parameters (radio block selection, allocation timing) based on sensed occupation rates and quality-of-service parameters. This allows the system to adapt resource allocation to varying application needs by modifying allocation parameters dynamically without changing the underlying fixed frequency band structure, maintaining infrastructure simplicity.
Data Source
Figure 1~6
Figure 2~3
Figure 4
AI summary
Radio blocs (BRjp) shared in a predetermined frequency band during a periodic radio frame (TRi) between base stations (BS) are allocated to applications in base stations and mobile stations. Each radio block spreading on frequencies (Cj) of said band during a time slot (Mdt) of the radio frame and can be associated with an uplink or a downlink. To meet quality-of-service parameters required by an application, a base station estimates occupation rates of the radio blocks during consecutive radio frames, and allocates to the application at least one radio block having an occupation rate less than a threshold and a periodicity expressed in period of frame and depending on the required quality-of-service parameters. The base station are autonomous for the radio block allocations.