Base Station Traffic Channel Power Adjustment
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Solution Overview
Problem
Current CDMA network base stations have static initial, minimum, and maximum traffic-channel power settings, which do not dynamically adjust to changing RF conditions, leading to suboptimal voice quality and capacity management.
Innovation Solution
A base station dynamically adjusts the initial, minimum, and maximum traffic-channel power levels based on the computed Ec/Ior value, which indicates the sector's load, to optimize power allocation and balance voice quality and capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If static traffic-channel power settings are used, then device complexity is reduced, but voice quality and capacity management become suboptimal
Solution Approach 1:
The patent implements dynamic adjustment of traffic-channel power levels by continuously monitoring Ec/Ior values and automatically modifying power settings based on current RF conditions and sector load, replacing static power configurations with an adaptive control mechanism that responds to changing network conditions in real-time
Solution Approach 2:
The system establishes a feedback loop where the base station measures Ec/Ior values from pilot channels, compares them against thresholds, and adjusts traffic-channel power levels accordingly. This closed-loop control ensures that power settings are continuously optimized based on actual signal quality and interference conditions
2Ease of operation
If higher traffic-channel power levels are used, then voice quality improves, but network capacity decreases
Solution Approach 1:
The patent dynamically changes power level parameters based on Ec/Ior measurements and sector load conditions. The base station adjusts initial power levels, minimum power levels, and maximum power levels as configurable parameters to optimize the balance between voice quality and capacity utilization under different network conditions
3Ease of operation
If power levels are increased during light loads, then coverage and call quality improve, but energy efficiency decreases
Solution Approach 1:
The system dynamically adjusts power level parameters based on real-time Ec/Ior measurements and load conditions. During light loads with favorable RF conditions, the base station increases power levels to improve coverage and call quality. During heavy loads or poor RF conditions, power levels are reduced to conserve energy and prioritize capacity
Data Source
AI summary
Methods and systems are provided for dynamic adjustment of forward-link traffic-channel power levels based on forward-link RF conditions. In an exemplary embodiment, a base station provides service on a carrier in a wireless coverage area. The base station computes an Ec/Ior value for the carrier. Based at least in part on the computed Ec/Ior value, the base station adjusts at least one of an initial traffic-channel power level, a minimum traffic-channel power level, and a maximum traffic-channel power level for the carrier. As an example, if Ec/Ior is above a certain threshold, the base station may increase all three of the power levels, so as to improve service quality and coverage of its traffic channels, among other advantages.