Content-Based Delivery Service for 5G Vehicular Networks
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Solution Overview
Problem
Current communication systems in 5G networks face challenges in efficiently delivering content-based services through device-to-device (D2D) communications, particularly in vehicular environments, where issues like half-duplex operation, hidden terminal problems, and contention arise, affecting the reliability and speed of V2V communications.
Innovation Solution
The implementation of a content-based delivery service that determines the optimal delivery path for information elements by assessing the capability of access nodes and user devices, allowing for direct D2D communications or through access nodes, using resource configuration to ensure efficient data transfer, and utilizing a smart multi-tenancy, multi-service communication zone (SM-Zone) with roadside units (RSUs) to facilitate instant radio access without prior connection establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If direct device-to-device communications are used for content delivery, then communication speed and reliability are improved, but contention and hidden terminal problems increase
Solution Approach 1:
The patent introduces an access node as an intermediary for content delivery in D2D communications. The access node receives content requests from user devices, retrieves content from content sources, and delivers it to target devices. This mediator approach resolves the contradiction by maintaining fast D2D delivery while using the access node to manage resource allocation and avoid contention/hidden terminal issues through coordinated communication.
2Productivity
If resource configuration is performed for content delivery, then delivery efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements self-service mechanisms where user devices autonomously perform content requests and resource configuration based on pre-configured parameters. The access node provides resource configurations that enable devices to self-manage their content delivery operations, reducing the need for complex centralized control while maintaining efficient delivery through automated resource allocation.
3Adaptability or versatility
If multiple access nodes are used for content delivery, then service coverage is improved, but coordination overhead increases
Solution Approach 1:
The patent segments content delivery services across multiple access nodes, where each node independently handles content requests within its coverage area. The system divides the delivery task into separate segments handled by different access nodes, improving service coverage while minimizing coordination overhead through localized decision-making at each node.
Data Source
AI summary
There is provided a method comprising: receiving a request for a content-based delivery service from at least one first user device of a plurality of user devices with device-to-device communications capability for a delivery of an information element; obtaining information in relation to the delivery of the information element; determining, based on the obtained information in relation to the delivery, if the information element is to be delivered using an access node or at least one second user device or both the access node and the at least one second user device or if information on absence of the requested information element is conveyed, and in response to the determination, carrying out resource configuration for the delivery of the information element or for conveyance of the information on the absence of the requested information element by using the content-based delivery service.