Reference Signal Configuration for Energy-Saving Cell Mobility

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in minimizing power consumption through efficient transmission and reception of reference signals, which affects operational costs and environmental sustainability.

Innovation Solution

A wireless transmit/receive unit (WTRU) configured to receive and process reference signal configuration information, perform measurements, and transmit reports based on spatial relations to optimize the transmission of reference signals, thereby reducing unnecessary energy usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If reference signals are transmitted frequently and extensively to ensure reliable communication and accurate measurements, then measurement precision and communication reliability are improved, but power consumption increases

Engineering Contradiction:

Improvemeasurement precisionVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by transmitting reference signals only when necessary rather than continuously. The network node selectively transmits reference signals based on UE requests and specific conditions, reducing overall transmission frequency while maintaining measurement accuracy when needed. This resolves the contradiction by providing sufficient reference signals for precise measurements only during required periods.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent implements periodic action through configured grant transmissions where reference signals are sent at specific intervals or triggered events rather than continuously. The network node uses periodic opportunities for uplink transmission to send reference signals, ensuring measurements can be performed periodically with adequate precision while avoiding constant transmission that would waste energy.

Inventive Principle:

Principle #19Periodic action

2Loss of energy

If reference signals are transmitted minimally to reduce power consumption, then energy efficiency is improved, but communication reliability and measurement accuracy deteriorate

Engineering Contradiction:

Improveenergy efficiencyVSAvoidcommunication reliability

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The patent applies self-service by enabling UEs to autonomously request and receive reference signals only when they need to perform measurements or when conditions warrant it. The UE monitors for opportunities to transmit uplink signals and requests reference signals independently, ensuring communication reliability is maintained only when the UE actually needs it, thereby improving overall energy efficiency.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent implements feedback mechanisms where UEs report measurement results and channel conditions back to the network node. Based on this feedback, the network node intelligently determines whether to transmit additional reference signals, creating a closed-loop system that maintains communication reliability through adaptive reference signal transmission triggered by actual network conditions and UE needs.

Inventive Principle:

Principle #23Feedback

3Adaptability or versatility

If multiple reference signal configurations are maintained for different scenarios, then adaptability is improved, but device complexity increases

Engineering Contradiction:

ImproveadaptabilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing reference signal configurations that can serve multiple purposes across different scenarios. The same reference signal structure is used for various measurement types and communication functions, allowing a single configuration framework to handle multiple adaptability requirements without proportionally increasing device complexity. This resolves the contradiction by making the reference signal system multi-functional rather than requiring separate dedicated configurations for each scenario.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260052466A1Methods, architectures, apparatuses and systems for enabling operation with minimal transmission of common reference signals

Publication Date: 2026.02.19 INTERDIGITAL PATENT HOLDINGS INC

AI summary

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products relating or directed to a WTRU performing or determining to perform a mobility event, such as cell switch, handover or reselection, to a network energy savings (NES) cell based on information received from a serving cell on the beams of a first reference signal (RS) configuration and a second RS configuration associated with the NES cell.