Wireless Transmitter Power Control via Sensor Interference Feedback
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Solution Overview
Problem
Current transmit power control techniques are inadequate for dynamically adjusting the power of wireless transmitters in large indoor spaces, particularly in scenarios where spatial reuse of spectrum occurs, as they fail to effectively consider the position and interference from other transmitters.
Innovation Solution
A method and system that dynamically control the transmit power of wireless transmitters by determining the location and range of sensors, measuring power and interference levels, and adjusting the transmit power based on these measurements using a transmit power control engine with a processor and memory, which includes modules for location and range retrieval, power determination, and pattern identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple wireless transmitters are distributed widely to provide adequate coverage in large indoor spaces, then coverage area is improved, but interference between transmitters increases
Solution Approach 1:
The system dynamically changes the transmit power parameter of wireless transmitters based on real-time interference measurements and sensor locations. Each transmitter adjusts its power level adaptively to maintain adequate coverage while minimizing interference with other transmitters in the network.
Solution Approach 2:
The system implements a feedback mechanism where transmitters measure interference levels from other transmitters, process this information through a control engine, and adjust their transmit power accordingly. This closed-loop control enables the network to self-optimize coverage and interference management.
2Object-generated harmful factors
If transmit power control techniques are used to manage interference, then interference level is reduced, but system complexity increases
Solution Approach 1:
Each wireless transmitter is equipped with the capability to autonomously measure interference from other transmitters and adjust its own transmit power without requiring complex centralized control. This self-service approach reduces overall system complexity while achieving interference management.
Solution Approach 2:
The interference control function is segmented and distributed across individual transmitters rather than being centralized. Each transmitter independently performs interference measurement and power adjustment, simplifying the overall control architecture.
3Reliability
If transmit power is increased to maintain coverage, then coverage reliability is improved, but energy consumption increases
Solution Approach 1:
The transmit power of each wireless transmitter is made dynamic rather than static. Transmitters continuously monitor interference levels and sensor locations, adjusting their power levels in real-time to maintain adequate coverage reliability while minimizing energy consumption when high power is not necessary.
Data Source
AI summary
A method and system for dynamically controlling transmit power of a wireless transmitter includes determining a set of sensors based on a location of each of a plurality of sensors, a location of the wireless transmitter, and a maximum range of the wireless transmitter. The method further includes determining a change in power level and a change in interference level at each of the set of sensors based on a plurality of power measurements and a plurality of interference measurements, within a predefined response time, for each of the set of sensors, determining a required change in a transmit power level of the wireless transmitter based on the change in power level and the change in interference level at each of the set of sensors, and dynamically effecting a change in the transmit power of the wireless transmitter based on the required change.