Dynamic Frequency Band Selection for Interference Management
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Solution Overview
Problem
Current wireless communication systems, particularly in FDD systems, face challenges in efficiently managing unpaired frequencies, leading to potential interference and suboptimal frequency usage, which affects the performance and capacity of LTE technology and other multi-access technologies.
Innovation Solution
A method and apparatus that determine if a transmission using a second frequency band to a second device will exceed a threshold value, and adjust by using either a first frequency band alone or both the first and second frequency bands, where the first and second frequency bands are different, to prevent interference and optimize frequency usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission using second frequency band is performed, then frequency usage efficiency is improved, but interference level increases
Solution Approach 1:
The system dynamically changes transmission parameters by selecting different frequency bands (first or second) based on measured interference levels and transmission power conditions. When interference exceeds thresholds, the system switches to the first frequency band; when interference is acceptable, it uses the second frequency band to optimize spectral efficiency.
Solution Approach 2:
The frequency band selection is made dynamically rather than statically. The determining module continuously monitors transmission conditions and adjusts frequency band usage in real-time based on current interference levels and power conditions, making the system adaptive to changing environmental conditions.
2Quantity of substance
If both first and second frequency bands are used, then capacity increases, but interference risk increases
Solution Approach 1:
The system changes the operational state by switching between single-band and dual-band transmission modes based on interference thresholds. When interference is low, both frequency bands are utilized to maximize capacity; when interference exceeds thresholds, the system transitions to single-band operation to reduce interference risk.
3Productivity
If frequency band selection is optimized, then frequency usage efficiency improves, but system complexity increases
Solution Approach 1:
The system manages complexity by implementing a threshold-based decision mechanism rather than complex optimization algorithms. The determining module compares measured interference levels against predefined thresholds to select frequency bands, providing a balance between optimization performance and implementation complexity.
Data Source
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AI summary
A method, an apparatus, and a computer program product for wireless communication are provided in which it is determined, by a first device, if a transmission using a second frequency band to a second device will result in a parameter exceeding a threshold value, and content is either transmitted using a first frequency band upon a determination that the transmission to the second device will result in the parameter exceeding the threshold, or transmitted using the first frequency band and a second frequency band upon a determination that the transmission to the second device will result in the parameter not exceeding the threshold, wherein the first and second frequency bands are different.