Dynamic Transmission Power Control via Attenuation Feedback
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Solution Overview
Problem
In cellular telecommunications networks, especially those with mobile or changing base station configurations, predetermined transmission power parameters become incorrect, leading to potential interference and network malfunctions when base stations are added, removed, or move relative to each other.
Innovation Solution
A method where base stations dynamically determine transmission power control parameters by receiving attenuation values from user equipment in their cells and non-serving cells, calculating and broadcasting updated parameter values to adapt transmission power levels, ensuring optimal network configuration and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If predetermined transmission power parameters are used for a fixed network configuration, then network planning and initial setup are simplified, but the parameters become incorrect when base stations are added, removed, or moved, causing interference and network malfunctions
Solution Approach 1:
The patent transforms the static predetermined parameters into dynamic parameters that are continuously updated based on real-time attenuation measurements from user equipment. The base station receives attenuation values from multiple user equipment, calculates updated transmission power parameters, and broadcasts these updated parameters to maintain optimal performance despite network configuration changes.
Solution Approach 2:
The patent implements a feedback mechanism where user equipment measures the attenuation of signals from serving and non-serving base stations, reports these measurements to the serving base station, which then uses this feedback to recalculate and update the transmission power control parameters. This closed-loop feedback ensures parameters remain accurate despite network changes.
2Reliability
If transmission power parameters are updated dynamically to adapt to network changes, then interference is prevented and network stability is maintained, but the system complexity and computational requirements increase
Solution Approach 1:
The patent enables the system to self-adjust by having user equipment autonomously measure attenuation values and report them to the base station, which then automatically recalculates the optimal transmission power parameters without requiring external intervention or complex centralized control. The system uses readily available signal measurements to drive the parameter updates.
Solution Approach 2:
The patent changes the physical state or properties of the system by continuously adjusting the transmission power parameters based on measured attenuation values. The base station modifies key parameters such as path loss compensation and power control offsets to adapt to changing network conditions, maintaining reliability through parameter optimization.
3Object-affected harmful factors
If attenuation values from non-serving cells are collected to calculate control parameters, then interference between neighboring cells is minimized, but the signaling overhead and measurement requirements increase
Solution Approach 1:
The patent makes the attenuation measurement serve multiple functions: it provides information for both serving cell quality assessment and non-serving cell interference evaluation. The same set of attenuation measurements reported by user equipment is used to determine both the serving base station performance and the potential interference from neighboring base stations, reducing redundant signaling.
Data Source
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AI summary
The invention concerns a method for defining a parameter value for controlling the transmission power of a set of user equipment served by a cell defined by a base station of a cellular telecommunication network. The method comprises, for the base station, the steps of: - receiving (El), from the set of user equipment located in the cell defined by the base station, a set of attenuation values comprising, respectively by piece of equipment, an attenuation value of a signal transmitted by the base station and received by the piece of user equipment and, if the piece of user equipment is also located in at least one non-serving cell, an attenuation value of a signal transmitted by the base station of the non-serving cell and received by the piece of user equipment; - determining (E2), from the set of received attenuation values, a value of at least one parameter for controlling the transmission power; and - sending (E3), to the set of user equipment served by the cell defined by the base station, the value of the control parameter defined to adapt the transmission power of the set of user equipment.