Small Base Station Dynamic Resource Block Adjustment
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Solution Overview
Problem
In wireless communications, the increasing number of base station antennas and limited space lead to channel interference between adjacent frequency signals, causing service disconnection issues in backhaul lines when connection signals are of low strength.
Innovation Solution
A method is implemented in small base stations to predict signal power using a simple moving average algorithm and adjust the number of resource blocks based on preset power thresholds to reduce interference, ensuring stable communication by dynamically managing bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of base station antennas is increased to improve communication capacity, then productivity is improved, but channel interference between adjacent frequency signals increases causing service disconnection
Solution Approach 1:
The patent implements dynamic adjustment of the number of resource blocks based on real-time signal power conditions. The small base station continuously monitors the power of received signals and dynamically changes the resource block allocation to adapt to varying interference conditions, thereby maintaining stable communication while maximizing data transmission rates
Solution Approach 2:
The patent changes the parameter of resource block allocation based on signal power thresholds. When the power of the received signal exceeds a threshold, the number of resource blocks is reduced to minimize interference; when power is below the threshold, more resource blocks are allocated to maintain communication quality
2Productivity
If resource blocks are increased to improve data transmission rate, then productivity is improved, but adjacent channel interference increases causing service disconnection
Solution Approach 1:
The patent establishes a feedback mechanism where the small base station monitors the power of signals received from the macro base station and uses this information to adjust resource block allocation. This closed-loop control ensures that data transmission rates are maximized while maintaining service connection stability by reducing resource blocks when interference levels become excessive
Data Source
AI summary
A method for eliminating interference between adjacent channels to avoid service disconnection in a backhaul line uses a small base station. The small base station acquires power level of a first signal received by a wireless backhaul line and transmitted from a macro base station in a preset period, and predicts the power of a second signal in a next preset period based on the measured power of the first signal. The small base station further determines whether the power of the first signal is more than a preset power threshold when the power of the first signal is less than the predicted power of the second signal. The small base station reduces the number of resource blocks being used when the power of the first signal is more than the preset power threshold.