Radio Module Power Grouping for RF Exposure-Limited TX Allocation
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Solution Overview
Problem
Conventional TX power allocation methods for multiple radio modules in user equipment (UE) fail to efficiently utilize TX power margins, leading to reduced ratio efficiency and performance due to fixed ratio allocation, making it difficult to comply with RF exposure regulations.
Innovation Solution
Separate multiple radio modules into multiple radio groups based on RF regulations related to SPLSR, allowing for independent TER calculations and dynamic adjustment of TX power ratios within each group to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all radio modules are regarded as a single radio group with fixed ratio allocation, then the TER regulation can be met, but the TX power margin cannot be fully utilized leading to reduced ratio efficiency
Solution Approach 1:
The patent divides multiple radio modules into multiple radio groups based on RF exposure regulations and SPLSR requirements. Each radio group can independently calculate TER and adjust TX power ratios, allowing flexible power allocation while ensuring regulatory compliance. This segmentation enables different groups to utilize available power margins independently, improving overall ratio efficiency.
Solution Approach 2:
The patent implements dynamic adjustment of TX power ratios within each radio group based on real-time RF exposure conditions and performance requirements. Instead of fixed ratio allocation, the system continuously optimizes power distribution among radio modules in the same group, enabling efficient utilization of TX power margins while maintaining TER compliance.
2Device complexity
If fixed ratio allocation is used for TX power, then the allocation method is simple, but unused TX power margin in one module cannot be utilized by other modules reducing performance
Solution Approach 1:
By segmenting radio modules into multiple groups, the patent enables independent power margin utilization within each group while maintaining manageable complexity. Each group performs autonomous power ratio adjustment without requiring complex inter-group coordination, balancing system complexity with performance optimization.
Solution Approach 2:
Each radio group autonomously adjusts its internal TX power ratios based on available power margins and performance needs, without requiring centralized control. This self-service mechanism simplifies the overall system complexity while enabling efficient power utilization across all groups.
3Productivity
If dynamic adjustment of TX power ratio is implemented, then the ratio efficiency is improved, but the calculation and control complexity increases
Solution Approach 1:
The patent reduces calculation and control complexity by dividing radio modules into separate groups, allowing independent dynamic adjustment within each group. This segmentation limits the scope of calculations to smaller subsets of modules, making the dynamic adjustment process more manageable while still achieving improved ratio efficiency.
Data Source
AI summary
A method for adjusting a transmitting (TX) power ratio of a radio module includes: separating multiple radio modules into multiple radio groups according to a radiofrequency (RF) regulation, wherein the multiple radio modules comprise the radio module; mapping an RF exposure limit to a TX power limit; interacting with at least one other radio module for adjusting the TX power ratio, to obtain at least one adjusted TX power ratio, wherein the radio module and the at least one other radio module are comprised in a same radio group of the multiple radio groups; and adjusting the TX power limit according to the at least one adjusted TX power ratio, to generate an adjusted TX power limit of the radio module.