Wireless Sensor Interference Reporting via Time Patterns

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Solution Overview

Problem

Current wireless communication systems face challenges in efficiently reporting wireless channel state information, particularly in wireless sensor networks, where energy consumption is high due to frequent channel measurements and feedback, which affects network lifetime and reliability.

Innovation Solution

Implementing a method where wireless sensor nodes report interference information on a time pattern with multiple measurement durations, reducing the frequency of full channel quality feedback and using interference-specific reporting formats to conserve energy, while ensuring reliability and latency requirements are met.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If wireless sensor nodes perform frequent channel measurements and report full channel quality information, then channel state accuracy is improved, but energy consumption increases

Engineering Contradiction:

Improvechannel state accuracyVSAvoidenergy consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the interference component from the full channel quality information. Instead of reporting complete channel state, sensor nodes measure and report only interference levels, which is a subset of channel quality information. This extraction approach maintains necessary measurement accuracy for interference-aware scheduling while significantly reducing energy consumption associated with full channel quality reporting.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements partial action by having sensor nodes perform channel measurements at reduced frequency and report only interference-specific information rather than complete channel quality. The network device configures specific measurement time durations and patterns, allowing partial monitoring that suffices for interference management without the energy cost of continuous full channel quality reporting.

Inventive Principle:

Principle #16Partial or excessive action

2Reliability

If wireless sensor nodes report interference information frequently, then interference awareness is improved, but network lifetime is reduced

Engineering Contradiction:

Improveinterference awarenessVSAvoidnetwork lifetime

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent implements periodic action through configured measurement time durations and reporting patterns. The network device configures specific time patterns for interference measurement and reporting, creating periodic monitoring intervals rather than continuous reporting. This periodic approach maintains interference awareness reliability while extending network lifetime by reducing the cumulative energy consumption of frequent measurements and transmissions.

Inventive Principle:

Principle #19Periodic action

3Measurement precision

If full channel quality feedback is reported, then scheduling accuracy is improved, but feedback overhead increases

Engineering Contradiction:

Improvescheduling accuracyVSAvoidfeedback overhead

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent extracts only the interference component from complete channel quality feedback. Sensor nodes report specifically interference-related information (interference levels, interference derivates, acceleration of interference derivates) rather than full channel quality metrics. This extraction maintains scheduling accuracy for interference management while dramatically reducing feedback overhead in terms of message size and transmission resources.

Inventive Principle:

Principle #2Taking out (Extraction)

4Measurement precision

If measurement frequency is increased, then channel state information accuracy is improved, but energy consumption increases

Engineering Contradiction:

Improvechannel state information accuracyVSAvoidenergy consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by configuring specific measurement time durations and patterns for interference measurement. Rather than continuous high-frequency measurements, the system uses periodically configured measurement intervals that provide sufficient channel state information accuracy for interference-aware scheduling while significantly reducing the energy consumption associated with high-frequency measurements.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250016595A1System and method for joint sensing of interference in a wireless network

Publication Date: 2025.01.09 HUAWEI TECH CO LTD

AI summary

Systems and methods of reporting wireless channel state information are provided. With the provided system and method, in a situation where there are multiple UEs which are close to each other, such that channel conditions may be similar for the multiple UEs, one of the UEs is configured to report interference information on a time pattern that has at least two measurement time durations for which interference is to be measured, for example, only for a subset of N consecutive measurement time durations. Other UEs may be configured to report interference information for different time patterns, for example different subsets of the N time slots.