Access Point Power Control via Device Characteristics
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in transmit power control and protocol management, leading to energy wastage and hidden terminal problems due to fixed power levels and inadequate protocol adjustments based on device characteristics and network conditions.
Innovation Solution
The system dynamically adjusts transmission power and protocol parameters for access points and client devices based on received characteristics, including reception, status, utilization, and mobility data, allowing for customized power levels and protocol settings to optimize energy efficiency and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed transmission power levels are used, then device complexity is reduced, but energy efficiency deteriorates due to unnecessary power consumption
Solution Approach 1:
The patent implements dynamic transmission power control where the access point adjusts power levels based on real-time channel conditions and device characteristics. The system transitions from fixed power levels to adaptive power levels that change according to received signal strength indicators (RSSI), device mobility status, and network conditions, thereby improving energy efficiency without excessive complexity
Solution Approach 2:
The system changes transmission power parameters dynamically based on multiple factors including RSSI thresholds, device mobility characteristics, and network traffic patterns. By adjusting power parameters adaptively rather than using fixed values, the system optimizes energy consumption while maintaining communication quality
2Reliability
If higher transmission power levels are used, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on channel conditions and device characteristics. By changing power parameters adaptively rather than using fixed high power levels, the system achieves reliable communication only when necessary, thereby optimizing the balance between reliability and energy consumption
Solution Approach 2:
The system uses higher transmission power only partially - specifically when channel conditions deteriorate or device mobility requires it. During normal conditions, lower power levels are sufficient, avoiding excessive power consumption while maintaining adequate reliability
3Area of stationary object
If access points transmit at high power levels, then network coverage is extended, but hidden terminal problems worsen due to increased interference
Solution Approach 1:
The patent implements localized power control where different access points and client devices use different transmission power levels based on their specific locations, channel conditions, and interference environments. This local optimization reduces overall network interference while maintaining adequate coverage, as each device transmits at the minimum necessary power rather than all devices using high power
Solution Approach 2:
The system dynamically adjusts transmission power levels based on real-time network conditions, RSSI measurements, and interference patterns. By making power levels adaptive rather than fixed at high values, the system extends coverage only when and where necessary, thereby reducing the hidden terminal problem caused by excessive interference
4Device complexity
If protocol parameters are not adjusted based on device characteristics, then device complexity is reduced, but network efficiency deteriorates
Solution Approach 1:
The patent applies different protocol parameters and power control strategies tailored to specific device characteristics such as mobility status, battery capacity, and communication patterns. This localized optimization improves network efficiency by matching protocol behavior to device needs, rather than using uniform protocol settings for all devices
Solution Approach 2:
The system dynamically adjusts protocol parameters including transmission power, data rates, and retransmission thresholds based on device characteristics and network conditions. By changing parameters adaptively, the system optimizes communication efficiency for diverse device types without requiring complex manual configuration
Data Source
AI summary
A first plurality of characteristics are received from a first client device relating to transmissions received by the first client device from both an access point and a second client device. A second plurality of characteristics are received from the second client device relating to transmissions received by the second client device from both the access point and the first client device. The first plurality of characteristics and the second plurality of characteristics are both assessed. Based on the assessment, a least one of a plurality of customized power levels is selected for transmissions by the access point to the first client device and the second client device.


