Remote Server Group Coordination for Vehicular Micro Clouds

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Implementing peer-to-peer (P2P) wireless networks like Wi-Fi Direct for vehicular micro clouds faces challenges such as communication prohibitions between groups, group dissolution due to the group owner leaving, and latency during group discovery and computational bottlenecks.

Innovation Solution

A system and method using a remote server to provide group coordination and data forwarding services, selecting a vehicle as a group owner based on predicted membership duration, minimizing disruptions by pre-selecting a new group owner and transmitting group configurations to ensure seamless transitions and data forwarding between vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a vehicle acts as group owner in P2P wireless group, then direct wireless communication is enabled, but communication bottlenecks and computational limitations occur

Engineering Contradiction:

Improvecommunication speedVSAvoidcomputational burden

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent introduces a remote server as an intermediary that handles group coordination tasks. The server receives vehicle status information, predicts membership duration, and selects appropriate group owners. This mediator approach relieves the computational burden from individual vehicles while maintaining efficient P2P communication within the group.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of moving object

If group owner leaves the P2P wireless group, then vehicle mobility is maintained, but group dissolution occurs

Engineering Contradiction:

Improvegroup stabilityVSAvoidvehicle mobility

Core Design Contradiction:

Duration of action of moving objectVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary actions by continuously monitoring vehicle status information and predicting membership duration before the group owner actually leaves. When a vehicle is predicted to leave, the server proactively selects a new group owner and initiates transition procedures, preventing group dissolution and maintaining stability while allowing vehicles to move freely.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where vehicles continuously report their status information to the remote server. The server uses this feedback to predict membership duration and make informed decisions about group owner selection, dynamically adapting to vehicle mobility while maintaining group integrity.

Inventive Principle:

Principle #23Feedback

3Productivity

If P2P wireless group is formed dynamically, then vehicle mobility is supported, but latency during group discovery increases

Engineering Contradiction:

Improvegroup formation efficiencyVSAvoidgroup discovery latency

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The remote server performs preliminary actions by pre-selecting group owners based on predicted membership duration before actual group formation is needed. This advance preparation significantly reduces the time required for group discovery and formation when vehicles dynamically join or leave the vehicular micro cloud.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system enables self-service by having vehicles automatically report their status information to the server, which then autonomously performs predictions and selections. This automated process eliminates manual configuration and reduces latency in dynamic group formation while maintaining mobility support.

Inventive Principle:

Principle #25Self-service

4Reliability

If remote server coordinates group selection, then group stability is improved, but communication overhead increases

Engineering Contradiction:

Improvegroup continuityVSAvoidcommunication overhead

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by having vehicles selectively report only relevant status information to the remote server, rather than continuous full-state transmission. The server processes this partial information to make predictions and selections, achieving group stability while minimizing communication overhead and energy consumption.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11659360B2System and method for implementing peer-to-peer wireless groups for vehicular micro clouds

Publication Date: 2023.05.23 TOYOTA JIDOSHA KK

AI summary

Describe are systems and methods for implementing a peer-to-peer (P2P) wireless group acting as a vehicular micro cloud. In one example, a system includes a processor and a memory in communication with the processor having a group coordination service module. The group coordination service module has instructions that, when executed by the processor, cause the processor to select a vehicle out of a plurality of vehicles to act as a group owner of a P2P wireless group operating as a vehicular micro cloud based on vehicle status information from the plurality of vehicles and transmit group configurations of the first P2P wireless group to the plurality of vehicles to allow the plurality of vehicles to join the first P2P wireless group. The selection of the vehicle may be based on how long the vehicle is predicted to be a member of the vehicular micro cloud.