Uplink Transmission Parameter Adjustment for MPE Compliance
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Solution Overview
Problem
Wireless communication systems face challenges in managing transmission parameters to prevent exposure events that exceed maximum permissible limits, particularly when human bodies are in close proximity to transmission beams, leading to potential interference and reduced signal reception.
Innovation Solution
User equipment (UE) and base stations adjust transmission parameters by switching from initial to secondary values when an MPE event is detected, altering modulation parameters to maintain signal integrity and compliance with exposure limits, thereby ensuring continued communication without resource wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If transmission parameters are adjusted to reduce exposure levels during MPE events, then compliance with maximum permissible exposure standards is improved, but transmission reliability deteriorates
Solution Approach 1:
The patent applies parameter changes by switching between different sets of transmission parameters (first values and second values) based on MPE event detection. When an MPE event is detected, the system changes modulation parameters from the first set to the second set, which has different characteristics suitable for reduced exposure conditions. This allows the system to adapt transmission characteristics to comply with exposure limits while attempting to maintain reliability through parameter optimization.
Solution Approach 2:
The system implements dynamics by making transmission parameters changeable and adaptable based on real-time MPE event detection. The base station and UE dynamically switch between different parameter sets (first values and second values) depending on whether an MPE event is occurring. This dynamic adaptation allows the system to respond to changing exposure conditions while maintaining communication reliability through appropriate parameter selection.
2Object-affected harmful factors
If transmission parameters are changed to comply with MPE limits, then exposure safety is improved, but signal reception quality deteriorates
Solution Approach 1:
The patent uses parameter changes to switch between different modulation schemes and transmission characteristics when MPE events are detected. The second set of transmission parameters includes modified modulation parameters designed to work effectively under reduced power conditions, thereby maintaining signal reception quality while complying with exposure safety limits.
Solution Approach 2:
The system performs preliminary action by pre-configuring multiple sets of transmission parameters (first values and second values) with different characteristics. When an MPE event is detected, the system can immediately switch to the pre-prepared second set of parameters without needing to calculate or determine appropriate parameters in real-time, thus maintaining signal quality while ensuring compliance.
3Productivity
If initial transmission parameters are used without adjustment, then transmission efficiency is improved, but exposure limits are exceeded
Solution Approach 1:
The system implements feedback by monitoring for MPE events and using this information to determine whether to use the first or second set of transmission parameters. The base station and UE continuously assess exposure conditions and adjust parameters accordingly, ensuring that transmission efficiency is maintained when possible while automatically reducing exposure levels when MPE events are detected.
Solution Approach 2:
The system dynamically adjusts transmission parameters based on real-time MPE event detection. When no MPE event is detected, the system uses the first set of parameters for optimal transmission efficiency. When an MPE event is detected, the system switches to the second set of parameters to comply with exposure limits, thus dynamically balancing efficiency and compliance based on current conditions.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive an indication of first values for a set of transmission parameters for an uplink transmission; and transmit, based at least in part on identifying a maximum permissible exposure event, the uplink transmission based at least in part on second values for the set of transmission parameters, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters. Numerous other aspects are provided.