Base Station Interference Reduction via Dynamic Power Control
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Solution Overview
Problem
Private mobile radiocommunication network infrastructures experience interference when multiple systems operate in close proximity, disrupting each other's frequency bands, leading to communication issues.
Innovation Solution
A method that involves monitoring radiocommunication signals for disturbances by analyzing characteristics such as signal-to-noise ratio and power levels, and adjusting transmission power or suspending transmissions in affected frequency bands to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple PMR infrastructures operate in close proximity, then communication coverage is extended, but interference between infrastructures increases
Solution Approach 1:
The base station dynamically adjusts its transmission power based on real-time detection of disturbances in the frequency band. When interference is detected, the transmission power is reduced; when no interference is present, normal power levels are maintained. This dynamic adaptation allows multiple PMR infrastructures to coexist in close proximity by automatically adjusting to interference conditions.
Solution Approach 2:
The invention changes the transmission power parameter of the base station in response to detected disturbances. By monitoring characteristics such as signal-to-noise ratio and received signal power, the system identifies interference conditions and modifies the transmission power parameter accordingly, enabling multiple infrastructures to operate together with reduced mutual interference.
2Object-generated harmful factors
If transmission power is reduced to minimize interference, then harmful interference is decreased, but communication reliability may deteriorate
Solution Approach 1:
The base station continuously monitors the frequency band for disturbances by analyzing characteristics of received radiocommunication signals. This feedback mechanism allows the system to detect interference conditions and adjust transmission power accordingly. The feedback loop ensures that power reduction is applied only when interference is actually present, maintaining communication reliability during normal conditions while reducing interference when needed.
Solution Approach 2:
Rather than using a fixed low power level, the base station dynamically adjusts transmission power based on real-time interference detection. This dynamic approach ensures that communication reliability is maintained at normal power levels when no interference is present, while automatically reducing power only when interference is detected, thus avoiding the reliability deterioration that would result from permanently reduced power.
3Measurement precision
If continuous monitoring of frequency bands is performed, then disturbance detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The base station performs continuous monitoring of the frequency band by analyzing characteristics of normal radiocommunication signals that are already being exchanged with mobile terminals. This approach maintains high disturbance detection accuracy without requiring additional dedicated monitoring transmissions, thereby avoiding the extra energy consumption that would result from separate continuous monitoring signals.
Solution Approach 2:
The radiocommunication signals used for normal communication operations serve a dual function: both information exchange and interference detection. By analyzing characteristics such as signal-to-noise ratio and received power of these existing signals, the system achieves accurate disturbance detection without the need for separate monitoring mechanisms, thus avoiding additional energy consumption.
Data Source
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AI summary
The method (2000) comprises: for at least one mobile terminal attached to a base station of the infrastructure, obtaining (2004, 2008) at least one characteristic of at least one radiocommunication signal occupying a frequency band used by the base station and the mobile terminal to communicate with each other and received by the mobile terminal or the base station; searching (2012) from the characteristic(s) for a disturbance in the frequency band; and, if a disturbance is detected in the frequency band, reducing (2014) the transmission power of the base station in at least one transmission frequency band used by the base station to transmit radiocommunication signals to at least one attached mobile terminal.