Radio Module Transmit Power Control via System-Specific RF Parameters

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Solution Overview

Problem

Conventional Wi-Fi radio modules in portable information handling systems are not optimized for specific system configurations, leading to reduced wireless performance and increased costs due to generic SAR-compliance requirements, which result in a fixed power reduction across all configurations, neglecting individual RF characteristics.

Innovation Solution

Implementing system-specific RF parameter values stored on the information handling system platform, allowing the radio module to self-update its operating parameters based on unique RF characteristics, such as antenna peak gain, to optimize transmit power and improve wireless performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If generic radio module operating parameters are applied to all system configurations, then manufacturing complexity and cost are reduced, but wireless performance is not optimized for specific system RF characteristics

Engineering Contradiction:

Improvemanufacturing complexityVSAvoidwireless performance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent segments the radio module configuration into two parts: generic parameters (handled by the radio module itself) and system-specific RF parameters (stored in system non-volatile storage). This segmentation allows the radio module to maintain simplicity while the system provides customization, resolving the contradiction between ease of manufacture and wireless performance optimization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism (the system non-volatile storage containing system-specific RF parameters) that bridges the generic radio module and the specific system configuration. This intermediary allows the radio module to adapt to different systems without requiring complex manufacturing processes for each configuration.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If fixed SAR power reduction is applied across all system configurations, then SAR compliance is achieved, but wireless performance and data reach are reduced

Engineering Contradiction:

ImproveSAR complianceVSAvoidwireless performance

Core Design Contradiction:

ReliabilityVSPower

Solution Approach 1:

The patent applies local quality by allowing different power levels to be used in different spatial contexts (different system configurations). Instead of a uniform power reduction across all systems, each system can have customized power parameters tailored to its specific RF characteristics, antenna configurations, and SAR requirements, thereby maintaining compliance while optimizing performance for each local context.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent enables parameter changes by storing system-specific RF parameters in non-volatile storage, allowing the radio module to adjust its operating parameters (including power levels) based on the specific system configuration. This dynamic parameter adjustment resolves the contradiction by enabling both SAR compliance and optimized wireless performance through configuration-specific parameter tuning.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If system-specific RF parameters are stored and processed, then wireless performance is optimized, but device complexity and manufacturing cost increase

Engineering Contradiction:

Improvewireless performanceVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling the radio module to automatically read and apply system-specific RF parameters from the system non-volatile storage without requiring external configuration or complex manufacturing processes. The system configures itself during initialization, reducing the need for manual intervention and minimizing the increase in device complexity while achieving optimized wireless performance.

Inventive Principle:

Principle #25Self-service

4Ease of manufacture

If generic radio module parameters are used, then manufacturing cost is reduced, but battery life is reduced due to non-optimized transmit power

Engineering Contradiction:

Improvemanufacturing costVSAvoidbattery life

Core Design Contradiction:

Ease of manufactureVSUse of energy by moving object

Solution Approach 1:

The patent enables parameter changes by allowing the radio module to access system-specific RF parameters that include optimized transmit power settings tailored to each system configuration. This parameter customization allows the system to use the minimum necessary power for each specific configuration, optimizing battery life without requiring expensive manufacturing processes, as the parameters are simply stored and read from non-volatile storage.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9853748B2Systems and methods for controlling radio transmit power for information handling systems based on system-specific RF parameters

Publication Date: 2017.12.26 DELL PROD LP

AI summary

Systems and methods are provided that may be implemented to optimize or otherwise control radio module transmit power performance from a given wireless-enabled information handling system platform based on a set of system-specific RF parameter values that are provisioned and stored on the information handling system platform and that uniquely represent particular RF characteristics (e.g., such as specific device environment, system chassis configuration, etc.) of the given information handling system.