Vehicles Wireless Backhaul System Interoperability
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Solution Overview
Problem
Current wireless backhaul systems between vehicles face complexity in managing interoperability between different network suppliers, particularly when a fixed network and vehicle networks are operated by different providers, leading to issues with IP interoperability and radio interference.
Innovation Solution
A wireless backhaul system that includes at least two vehicles with onboard base stations and user terminals, utilizing a third mobile network to logically separate backhaul networks and enable any vehicle to act as a relay or be supported as a relay, using switching mechanisms to manage different operating modes and avoid radio interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 4G or 5G type resources are added to achieve wireless backhaul between vehicles, then backhaul capability is improved, but radio interference and network management complexity increase
Solution Approach 1:
The patent introduces a dedicated backhaul network (PLMN C) as an intermediary layer between the vehicle local network (PLMN B) and the fixed network (PLMN A). This mediator network handles all backhaul traffic, isolating the vehicle networks from direct 4G/5G resource management complexity while maintaining reliable backhaul capability. The switching means in each vehicle acts as a local intermediary to route traffic appropriately between networks.
2Reliability
If dedicated backhaul links are provided for each vehicle, then backhaul reliability is improved, but network complexity and resource requirements increase
Solution Approach 1:
The patent merges multiple vehicle backhaul requirements into a single shared backhaul network (PLMN C) that serves all vehicles. Instead of configuring separate dedicated links for each vehicle to the fixed network, all vehicles share common backhaul infrastructure and resources, reducing overall network complexity while maintaining reliable connectivity for each vehicle through the shared network.
3Adaptability or versatility
If vehicles act as relays for each other, then network coverage and backhaul availability are improved, but radio interference and coordination complexity increase
Solution Approach 1:
The patent segments the backhaul functionality by creating a separate dedicated backhaul network (PLMN C) distinct from the vehicle local networks (PLMN B). This segmentation allows vehicles to act as relays without causing interference to local vehicle communications, as the backhaul traffic operates on separate network resources. The switching means in each vehicle segments traffic flows to route backhaul traffic through the appropriate network path.
Data Source
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AI summary
The invention relates to a wireless backhaul system comprising at least two vehicles and three mobile networks, one of the networks being dedicated to providing between-vehicles backhauling, the vehicles comprising switching means to switch from a relayed mode to a relaying mode for other vehicles in relayed mode to be able to provide communication to other user terminals.