D2D Resource Set Timing to Reduce Resource Selection Conflicts

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Solution Overview

Problem

In device-to-device (D2D) communication, resource conflicts occur due to overlapping resource selections by terminal devices, leading to high interference and low resource utilization.

Innovation Solution

A first terminal device transmits a resource set to a second terminal device within a determined time period, allowing the second device to perform resource selection based on the received set to reduce conflicts and improve utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If terminal devices independently select resources from a resource pool, then resource selection freedom is maintained, but resource conflicts occur due to overlapping selections

Engineering Contradiction:

Improveresource selection freedomVSAvoidresource conflict probability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a network device as an intermediary that coordinates resource selection between terminal devices. The network device receives resource selection information from multiple terminals, determines a time period for resource set transmission, and manages the resource allocation process to prevent conflicts while maintaining terminal autonomy.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements preliminary resource coordination by having terminals report their intended resource selections to the network device before actual transmission. The network device processes these reports and establishes a time period during which resource sets are transmitted, preventing conflicts before they occur.

Inventive Principle:

Principle #10Preliminary action

2Quantity of substance

If resource sets are transmitted without time period constraints, then resource availability is improved, but interference increases due to simultaneous transmissions

Engineering Contradiction:

Improveresource availabilityVSAvoidcommunication interference

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent implements periodic resource set transmission by defining specific time periods during which resource sets are transmitted from the first terminal device to the second terminal device. This temporal structuring ensures that resources are made available in organized intervals, preventing simultaneous transmissions that would cause interference.

Inventive Principle:

Principle #19Periodic action

3Device complexity

If resource selection is performed without coordinated information sharing, then device complexity is reduced, but resource utilization efficiency decreases

Engineering Contradiction:

Improvecoordination mechanism complexityVSAvoidresource utilization efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent enables self-service resource optimization where the first terminal device autonomously determines a time period and transmits resource sets to the second terminal device based on pre-configured parameters and local decision-making, eliminating the need for complex continuous coordination while improving resource utilization.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12532332B2Communication method and apparatus, and device

Publication Date: 2026.01.20 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A communication method, terminal device and storage medium are provided. The method includes: determining, by a first terminal device, a first time period; and transmitting, by the first terminal device, a first resource set to a second terminal device within the first time period, wherein the first resource set is used for the second terminal device to perform resource selection.