Uplink Transmit Diversity Module for Wireless Feedback Optimization
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Solution Overview
Problem
Current wireless communication systems face limitations in selecting optimal uplink transmission configurations due to indirect and delayed feedback in open-loop methods, leading to suboptimal performance and increased power consumption.
Innovation Solution
The implementation of an uplink transmit diversity enhancement module that periodically tests multiple potential transmission configurations, selects the optimal configuration based on evaluation metrics, and applies beamforming weights to adjust antenna usage, allowing for adaptive PhaseSweep cycles to optimize power usage and channel dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If open-loop transmit configuration testing is performed, then transmission configurations can be evaluated, but feedback is indirect and delayed leading to suboptimal performance
Solution Approach 1:
The patent implements closed-loop feedback by having the base station directly measure uplink transmission metrics (such as received signal quality, interference levels, and power consumption) and provide explicit feedback to the mobile device. This enables real-time optimization of transmit configurations based on actual channel conditions, eliminating the indirect and delayed feedback inherent in open-loop methods.
2Reliability
If multiple transmission configurations are tested frequently, then optimal configuration can be selected, but testing overhead increases
Solution Approach 1:
The patent applies partial testing by selectively evaluating only a subset of potential transmit configurations based on current channel conditions, historical performance data, and base station feedback. Instead of exhaustively testing all possible configurations, the system focuses testing resources on the most promising candidates, reducing overhead while maintaining optimization effectiveness.
Solution Approach 2:
The patent implements dynamic adaptation of the testing process by adjusting the frequency and scope of configuration tests based on channel stability, traffic conditions, and performance requirements. When channel conditions are stable, testing frequency is reduced; when conditions change rapidly, testing is intensified, thereby optimizing the balance between reliability and overhead.
3Reliability
If transmit power is increased to improve uplink performance, then communication reliability improves, but power consumption increases
Solution Approach 1:
The patent optimizes the balance between reliability and power consumption by dynamically adjusting transmit power as one of multiple configurable parameters. The base station provides feedback on achieved performance metrics, enabling the mobile device to select configurations that achieve required reliability thresholds with minimum power expenditure, rather than consistently using maximum power.
Data Source
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AI summary
A method for uplink transmit diversity enhancement is described. Two or more potential uplink transmission configurations are determined. Each potential uplink transmission configuration is evaluated. An uplink transmission configuration is selected based on the evaluation. Metrics of the selected uplink transmission configuration are determined. Cycle adaptation parameters are adjusted. The selected uplink transmission configuration is applied for an extended use period.