Cell Coverage Tuning for Uplink-Downlink Power Balance
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Solution Overview
Problem
Current wireless networks face challenges in optimizing coverage area due to a power imbalance between uplink and downlink communications, with wireless devices often unable to reach base stations despite increased base station transmission power, leading to network performance issues and inefficient resource usage.
Innovation Solution
A method and system that balances uplink and downlink power by estimating coverage distances based on signal strengths and power headroom reports from wireless devices, adjusting downlink coverage to match uplink capabilities, using geo-binned data and power balancing logic to optimize network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If base station transmission power is increased to expand coverage area, then downlink coverage is improved, but uplink-downlink power imbalance worsens and network performance deteriorates
Solution Approach 1:
The system collects uplink power headroom reports from wireless devices and uses this feedback to dynamically adjust downlink coverage distance. The network node continuously monitors the power balance between uplink and downlink, and modifies coverage parameters based on real-time conditions to maintain optimal network performance while maximizing coverage.
Solution Approach 2:
The patent implements dynamic adjustment of downlink coverage distance based on varying uplink power conditions. Instead of using a fixed coverage area, the system adapts coverage parameters in real-time according to the power capabilities of wireless devices, allowing the network to optimize performance under different traffic and power conditions.
2Reliability
If base station transmission power is increased to mitigate interference, then downlink signal quality is improved, but uplink-downlink power imbalance increases and overall coverage efficiency decreases
Solution Approach 1:
The system changes the coverage distance parameter dynamically based on uplink power headroom conditions. By adjusting the downlink coverage distance to match actual uplink capabilities, the network achieves optimal signal quality without excessive power consumption, thereby improving coverage efficiency while maintaining reliable downlink communication.
Data Source
AI summary
A method for power balancing includes receiving data from wireless devices within a cell provided by an access node and estimating a downlink coverage distance of the cell based on signal strengths reported in the data. The method further includes estimating an average distance from the access node at which the wireless devices have insufficient transmit power to reach the access node based on the data. Additionally, the method includes comparing the downlink coverage distance to the average distance and adjusting the downlink coverage distance based on the comparison.