Configurable Power Amplifier Backoff for Wireless Link Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in optimizing power amplifier backoff to balance power efficiency and link performance, leading to suboptimal results due to fixed spectrum emission masks and varying spectrum usage conditions.
Innovation Solution
Implementing a configurable power amplifier backoff mechanism that allows mobile stations and base stations to adjust power amplifier settings based on real-time spectrum usage information, enabling improved link performance even when the adjusted settings do not satisfy traditional spectrum emission masks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed spectrum emission masks are used to ensure compliance, then regulatory requirements are met, but link performance and power efficiency are suboptimal
Solution Approach 1:
The patent implements dynamic power amplifier backoff adjustment where the backoff value is no longer fixed but adapts in real-time based on spectrum usage conditions. The system monitors spectrum usage and dynamically adjusts the backoff parameter to optimize link performance while maintaining compliance when necessary, transforming a static compliance mechanism into a dynamic performance-optimizing system.
Solution Approach 2:
The system changes the operational parameters of the power amplifier by adjusting the backoff value based on spectrum usage conditions. Instead of maintaining a fixed backoff parameter, the system modifies this parameter dynamically according to real-time spectrum measurements, allowing optimization of both power efficiency and link performance under varying conditions.
2Object-generated harmful factors
If power amplifier backoff is increased to reduce spectral regrowth, then adjacent channel interference is reduced, but power efficiency and link performance deteriorate
Solution Approach 1:
The patent applies dynamic adjustment of power amplifier backoff based on real-time spectrum usage monitoring. When spectrum conditions permit, the system reduces backoff to improve power efficiency and link performance. When spectral regrowth becomes problematic, the system increases backoff accordingly, creating a dynamic balance rather than a fixed trade-off.
Solution Approach 2:
The system implements a feedback mechanism where spectrum usage is continuously monitored and this information feeds back to adjust the power amplifier backoff parameter. This closed-loop control allows the system to respond to actual spectral conditions, reducing unnecessary backoff (and power loss) when interference is not present while maintaining suppression of spectral regrowth when needed.
3Productivity
If configurable power amplifier backoff is implemented to improve link performance, then coverage and power efficiency increase, but system complexity increases
Solution Approach 1:
The configurable backoff system uses feedback from spectrum usage monitoring to automatically adjust power amplifier parameters. This feedback-driven approach reduces the need for complex manual configuration and optimization, as the system self-adjusts based on measured conditions, thereby limiting the increase in system complexity.
Solution Approach 2:
The system performs self-optimization by autonomously adjusting power amplifier backoff based on its own spectrum usage measurements. This self-service capability eliminates the need for external optimization procedures or complex configuration management, allowing the system to improve its own performance while adding minimal complexity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive information relating to a power amplifier backoff adjustment. The mobile station may transmit an uplink communication on a frequency channel using an adjusted power amplifier backoff determined based at least in part on the information. Numerous other aspects are described.