D2D Resource Pool Measurement Feedback for Radio Utilization

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Solution Overview

Problem

Conventional cellular networks face limitations in supporting high data rate and Proximity Service (ProSe) requirements, leading to higher D2D resource competition failure rates, lower radio resource utilization, and resource waste due to the network's inability to learn about the practical use conditions of D2D competition resource pools.

Innovation Solution

A method and apparatus for D2D resource pool measurement and reporting, where D2D User Equipment (UE) receives measurement configuration information from an Evolved Node B (eNodeB), measures the resource pool, and sends measurement information back, enabling the eNodeB to learn about the resource pool's load and competition conditions, thereby optimizing resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If competition-based resource acquisition is used for D2D, then D2D UEs can acquire resources autonomously, but resource competition failure rate increases and resource utilization decreases

Engineering Contradiction:

Improveautonomous resource acquisitionVSAvoidresource competition success rate

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where D2D UEs report resource pool measurement information (such as received signal strength, resource occupancy ratio) to the network side. The network side uses this feedback to dynamically adjust resource pool configuration parameters, thereby improving resource allocation efficiency and reducing competition failure rates while maintaining autonomous acquisition capabilities.

Inventive Principle:

Principle #23Feedback

2Device complexity

If the network side does not monitor D2D resource pool usage, then network complexity is reduced, but resource waste increases and utilization rate decreases

Engineering Contradiction:

Improvenetwork monitoring complexityVSAvoidradio resource waste

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The patent enables D2D UEs to autonomously measure and report resource pool conditions (such as signal quality, resource occupancy) to the network side. This self-service mechanism allows the network to obtain resource usage information without active monitoring, reducing network complexity while preventing resource waste through informed dynamic configuration adjustments.

Inventive Principle:

Principle #25Self-service

3Productivity

If D2D UEs report detailed measurement information, then network can optimize resource allocation, but uplink signaling overhead increases

Engineering Contradiction:

Improveresource allocation optimization capabilityVSAvoiduplink signaling overhead

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent extracts only the most critical measurement parameters (such as average received signal strength, resource occupancy ratio, competition success rate) from the complete measurement data and reports them to the network side. This selective reporting approach enables effective resource allocation optimization while significantly reducing uplink signaling overhead compared to reporting all measurement details.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP3179794B1Method for measuring and reporting device-to-device resource pool, device, and storage medium

Publication Date: 2024.04.24 ZTE CORP

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AI summary

The disclosure discloses a method for Device to Device (D2D) resource pool measurement and reporting. A User Equipment (UE) measures a D2D resource pool, and sends measurement information of the D2D resource pool. The disclosure also discloses another method, Evolved Node B (eNodeB), UE and storage medium for D2D resource pool measurement and reporting.