Wireless Relay Resource Coordination Across Shared Cell Areas

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Solution Overview

Problem

Existing wireless communication systems face challenges in managing resources efficiently among mobile bodies and wireless relay apparatuses, leading to potential resource conflicts and increased interference, especially when these entities move within cell areas served by multiple wireless base stations.

Innovation Solution

Implementing a wireless communication system where wireless base stations and relay apparatuses manage and share resource information using area identification and mobility information, ensuring non-overlapping resource allocation through broadcast and synchronization processes, thereby preventing conflicts and reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If wireless relay apparatuses and mobile bodies communicate freely within cell areas, then communication coverage is improved, but resource conflicts and interference increase

Engineering Contradiction:

Improvecommunication coverage areaVSAvoidresource conflicts and interference

Core Design Contradiction:

Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The system segments the cell area into multiple regions and assigns different resource allocation schemes to different regions. Each wireless relay apparatus and mobile body is allocated specific time-frequency resources based on its location and mobility state, preventing resource conflicts while maintaining broad coverage.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic resource allocation that adapts to the mobility state of wireless relay apparatuses and mobile bodies. When entities move between cell areas or change mobility states, the system dynamically adjusts resource allocation to prevent interference while maintaining continuous communication coverage.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If resource allocation is managed without coordination between cell areas, then system complexity is reduced, but resource conflicts increase

Engineering Contradiction:

Improveresource management complexityVSAvoidresource conflicts

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The system performs preliminary resource allocation and coordination before wireless relay apparatuses or mobile bodies enter cell areas with potential resource conflicts. Base stations exchange resource allocation information in advance, and entities are assigned resources that prevent conflicts before they occur, reducing the need for complex real-time conflict resolution.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces base stations as intermediary entities that coordinate resource allocation between different cell areas. Base stations manage resource information and facilitate communication between neighboring cells, preventing resource conflicts without requiring direct complex interactions between all wireless entities.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Speed

If wireless relay apparatuses move between cell areas without resource synchronization, then mobility is improved, but communication stability deteriorates

Engineering Contradiction:

Improvemobility speedVSAvoidcommunication stability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system implements dynamic resource allocation that automatically adapts when wireless relay apparatuses move between cell areas. As entities cross cell boundaries, the system dynamically adjusts resource assignments based on real-time location and mobility state, maintaining communication stability without restricting movement speed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms where base stations continuously monitor the positions and mobility states of wireless relay apparatuses. When entities move between cell areas, feedback information triggers automatic resource reallocation to maintain stable communication, ensuring reliability without limiting mobility.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250374071A1Wireless base station, wireless relay apparatus, mobile body, wireless communication system, and wireless communication method

Publication Date: 2025.12.04 HONDA MOTOR CO LTD

AI summary

A wireless base station is a wireless base station which performs wireless communication with a wireless relay apparatus, and the wireless base station includes: a storage unit which stores area identification information for identifying a predetermined cell area at least partially provided by one or more wireless base stations including the wireless base station; and a communication unit which transmits, to the wireless relay apparatus, the area identification information and first information indicating a resource available to the wireless relay apparatus within the cell area, in which the communication unit receives, from the wireless relay apparatus, second information indicating a resource used by the wireless relay apparatus, and the wireless base station further includes a control unit which performs processing for holding information on the resource used by the wireless relay apparatus in the one or more wireless base stations, based on the second information.