Adaptive EVM Requirement Updates for Wireless Transmitters
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently updating error vector magnitude (EVM) requirements, leading to suboptimal performance and resource wastage due to inadequate adaptation of ADC resolutions and transmit processing.
Innovation Solution
The method involves communicating an indication of updated EVM requirements between transmitting and receiving devices, allowing for adaptive transmit processing and ADC resolution adjustments to optimize communication quality and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed ADC resolution and transmit processing are used, then device complexity is reduced, but communication quality and spectral efficiency deteriorate
Solution Approach 1:
The patent implements dynamic ADC resolution adjustment where the ADC resolution is changed based on current channel conditions and EVM requirements. The system transitions from fixed to variable ADC resolution, allowing optimization of communication quality while managing device complexity through conditional adaptation rather than constant high-resolution processing.
Solution Approach 2:
The system changes key parameters (ADC resolution, transmit processing level) based on EVM requirements and channel conditions. By dynamically adjusting these parameters rather than maintaining fixed values, the system achieves improved communication quality without proportionally increasing device complexity, as parameters are only elevated when necessary.
2Reliability
If high ADC resolution and transmit processing are always used, then communication quality is improved, but power consumption and computing resources increase
Solution Approach 1:
The patent implements dynamic resource allocation where power consumption and computing resources are adjusted according to actual communication needs. When channel conditions are good or EVM requirements are met, the system reduces ADC resolution and transmit processing intensity, thereby lowering power consumption while maintaining adequate communication quality.
Solution Approach 2:
The system dynamically changes operational parameters (ADC resolution, processing intensity) based on EVM requirements. This allows the system to consume less power during normal operations while reserving higher resource usage only when communication quality demands it, achieving a balance between power efficiency and reliability.
3Productivity
If EVM requirements are not updated, then system stability is maintained, but spectral efficiency and communication performance deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where EVM measurements are continuously monitored and used to update EVM requirements and adjust ADC resolution accordingly. This closed-loop system allows the network to adapt to changing channel conditions and traffic demands, improving spectral efficiency while maintaining stability through controlled, feedback-driven adjustments rather than arbitrary changes.
Solution Approach 2:
The system performs preliminary EVM assessments and updates requirements proactively based on predicted channel conditions and traffic patterns. By anticipating needs rather than merely reacting to degradation, the system can optimize spectral efficiency before performance deteriorates, while maintaining stability through gradual, planned adjustments.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting device may communicate an indication of an updated error vector magnitude (EVM) requirement. The transmitting device may transmit a communication using transmit processing associated with the updated EVM requirement. Numerous other aspects are described.