Base Station Frequency Band Priority Control
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Solution Overview
Problem
Existing frequency sharing technologies, such as those described in Patent Literatures 1 and 2, are inefficient when no node with the same priority level is available to share a frequency band, leading to suboptimal use of the band.
Innovation Solution
An apparatus that includes an acquisition unit to identify overlapping base stations with priority access to a frequency band and a control unit to request data transmission from a secondary base station to a terminal apparatus, allowing efficient use of the frequency band even when the secondary base station cannot use it with priority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nodes with the same priority level share the frequency band, then the frequency band can be shared fairly among equal priority nodes, but the frequency band is not efficiently used when no node with the same priority level is available
Solution Approach 1:
The patent changes the parameter of priority level from a fixed attribute to a dynamic, flexible parameter. The first base station can dynamically determine to allow the second base station (with lower priority) to use the frequency band under specific conditions, rather than strictly enforcing equal priority requirements. This flexibility enables more efficient frequency band utilization while managing complexity through controlled decision-making parameters.
Solution Approach 2:
The patent introduces an intermediary mechanism where the first base station acts as a mediator between the frequency band resource and the second base station. Instead of direct equal-priority sharing, the first base station evaluates and controls whether to allow the second base station to access the band, creating a hierarchical mediation that improves efficiency without requiring complex multi-node coordination.
2Productivity
If the second base station transmits data using the frequency band, then data can be delivered to the terminal apparatus, but interference with the first base station's priority access may occur
Solution Approach 1:
The patent applies local quality by allowing different base stations to have different access rights to the frequency band in different spatial locations. The first base station maintains priority access in its coverage area, while the second base station is permitted to transmit in areas where the first base station is not present or where interference can be managed. This localized differentiation enables data transmission without uniform interference across the entire frequency band.
Solution Approach 2:
The patent introduces dynamic control where the first base station can change its behavior based on real-time conditions. When the first base station determines that allowing the second base station to transmit will not cause harmful interference, it dynamically changes its state to permit the second base station's access. This dynamic adjustment enables data transmission capability while adapting to interference conditions.
Data Source
AI summary
[Object] To enable a frequency band to be used with higher efficiency.[Solution] There is provided an apparatus including: an acquisition unit configured to acquire information regarding a second base station that is a second base station having a coverage area that overlaps a coverage area of a first base station capable of using a frequency band with priority, and is incapable of using the frequency band with priority; and a control unit configured to request the second base station to transmit data destined for a terminal apparatus that accesses the first base station to the terminal apparatus.