Multi-transmission Power Control Mode Selector
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Solution Overview
Problem
Multi-transmission capable data transmission systems face challenges in accurately controlling transmission power due to interference between transmission chains, leading to unreliable power measurements and potential data transmission errors.
Innovation Solution
A power control mode selector dynamically switches between closed loop and open loop power control modes based on interference indicators, using look-up tables and programmable gain controls to adjust transmission power, ensuring accurate power control even in interference-prone conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission chains operate simultaneously to increase data transfer rates, then productivity is improved, but interference between transmission chains causes measurement precision to deteriorate
Solution Approach 1:
The system dynamically switches between closed-loop and open-loop power control modes based on interference conditions. When interference is detected between transmission chains, the system transitions to open-loop mode to avoid corrupted power measurements, thereby maintaining both multi-transmission capability and measurement accuracy
Solution Approach 2:
An intermediary mechanism (interference detection and mode selection logic) is introduced to monitor the transmission environment and select the appropriate power control mode. This intermediary prevents the harmful effect of interference on power measurements while preserving the benefits of multi-transmission operation
2Reliability
If closed loop power control mode is used to maintain accurate transmission power, then reliability is improved, but interference from other transmission chains causes measurement precision to deteriorate
Solution Approach 1:
The system uses feedback from interference indicators to dynamically adjust the power control mode. When interference is detected, the feedback mechanism triggers a switch from closed-loop to open-loop mode, preventing corrupted feedback from degrading transmission reliability
Solution Approach 2:
The power control mode is made dynamic rather than static, allowing the system to adapt between closed-loop and open-loop modes based on real-time interference conditions, thereby maintaining reliability across varying operational environments
3Adaptability or versatility
If dynamic mode switching is implemented to handle interference, then adaptability is improved, but device complexity increases
Solution Approach 1:
The power control system is designed with multi-functionality, where a single unified controller can operate in both closed-loop and open-loop modes. This universal design provides adaptability to different interference conditions without requiring separate dedicated systems for each mode, thereby limiting the increase in complexity
Data Source
AI summary
A data transmission system may comprise a first transmission chain comprising a first transmission power controller, the first transmission power controller being configured to operate in an open loop power control mode or in a closed loop power control mode; a second transmission chain; and a power control mode selector configured to select the first transmission power controller to operate in the open loop power control mode or in the closed loop power control mode based on at least one quantity indicative of interference induced by the second transmission chain in the first transmission power controller when operating in the closed loop power control mode.