Time-Varying EIRP Masks for Dynamic Spectrum Adaptation

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Solution Overview

Problem

Existing EIRP masks in wireless communication systems are static, failing to adapt to dynamic factors such as location, time, and network conditions, leading to inefficient spectrum usage and potential interference.

Innovation Solution

Implementing time-varying EIRP masks that dynamically adjust based on factors like time, location, and network conditions, allowing wireless devices to optimize transmission power according to current needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If static EIRP masks are used, then device complexity is reduced, but spectrum efficiency deteriorates due to inability to adapt to dynamic conditions

Engineering Contradiction:

Improveadaptability to dynamic conditionsVSAvoidcomplexity of EIRP mask implementation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements time-varying EIRP masks that dynamically adjust power spectral density limits based on current time, frequency, and network conditions. Instead of fixed static masks, the system continuously updates EIRP constraints to match real-time spectral occupancy and interference conditions, enabling adaptation to changing environments while maintaining manageable complexity through structured update mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameters of EIRP masks over time by updating power spectral density limits based on measured spectral occupancy, interference levels, and network conditions. The masks transition from static fixed values to dynamic time-varying parameters that reflect current operational conditions, allowing the system to optimize spectrum usage without requiring complete redesign of the power control mechanism.

Inventive Principle:

Principle #35Parameter changes

2Object-generated harmful factors

If static EIRP masks are used, then implementation simplicity is maintained, but interference increases due to lack of dynamic adjustment

Engineering Contradiction:

Improveinterference to other systemsVSAvoidease of EIRP mask management

Core Design Contradiction:

Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The patent implements feedback mechanisms where the system continuously monitors spectral occupancy, interference levels, and network conditions, then uses this information to dynamically adjust EIRP mask parameters. The feedback loop measures actual spectral usage and interference impact, then updates power spectral density limits accordingly, reducing harmful interference while maintaining operational simplicity through automated closed-loop control.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs self-service by automatically adjusting its own EIRP masks based on measured spectral conditions and interference levels. Network entities autonomously update their power spectral density constraints without requiring manual reconfiguration, enabling the system to self-optimize interference management while maintaining ease of operation through automated decision-making algorithms.

Inventive Principle:

Principle #25Self-service

3Productivity

If time-varying EIRP masks are implemented, then spectrum efficiency improves through dynamic optimization, but measurement and control difficulty increases

Engineering Contradiction:

Improvespectrum efficiencyVSAvoiddifficulty of EIRP metric measurement

Core Design Contradiction:

ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent segments the EIRP mask into multiple independent parameters including power spectral density limits, time variation components, and frequency-specific constraints. This segmentation allows the system to measure and control each parameter separately using standardized methods, reducing the overall measurement difficulty while enabling sophisticated time-varying optimization that improves spectrum efficiency through granular control.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250113307A1Time-varying effective isotropic radiated power (EIRP) mask specifications

Publication Date: 2025.04.03 QUALCOMM INC

AI summary

Aspects of the disclosure are directed to a first network entity configured for wireless communication. In some examples, the first network entity includes one or more memories, individually or in combination, having instructions, and one or more processors, individually or in combination, configured to execute the instructions and cause the first network entity to output, for transmission to a second network entity, a first message configuring the second network entity with effective isotropic radiated power (EIRP) metrics to be applied to wireless communications between the second network entity and one or more user equipments (UEs).