Hybrid Forward Link Data Delivery for Vehicles
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Solution Overview
Problem
Existing communication systems for vehicles face issues with bi-directional links being unavailable, slow, or malfunctioning, leading to inconsistent data delivery and suboptimal user experiences due to limited bandwidth and hardware constraints.
Innovation Solution
A hybrid communications system that utilizes multiple forward links in different frequency bands to distribute content to vehicles, allowing for efficient data delivery by selecting optimal links based on content type, bandwidth, and availability, while using different messaging protocols and delivery schemes for forward and reverse links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single bi-directional communication link is used for data delivery to vehicles, then the system structure is simple, but the data delivery reliability deteriorates when the link is unavailable, slow, or malfunctioning
Solution Approach 1:
The patent segments the communication system into multiple independent forward links operating in different frequency bands (e.g., satellite forward link, terrestrial forward link) rather than relying on a single bi-directional link. This segmentation allows data to be delivered through alternative paths if one link fails, improving reliability while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The patent changes the parameter of frequency band usage by utilizing multiple forward links in different frequency bands simultaneously. This allows the system to bypass availability issues in one band by switching to another band, thereby improving data delivery reliability without requiring a complete system redesign
2Speed
If all communications traverse the same bi-directional link, then the system is easy to manage, but the data delivery speed deteriorates due to limited bandwidth and hardware constraints
Solution Approach 1:
The patent segments the data traffic into multiple parallel streams that traverse different forward links simultaneously. By dividing the communication load across satellite and terrestrial forward links in different frequency bands, the system achieves higher aggregate data delivery speed while keeping each individual link relatively simple to manage
Solution Approach 2:
The patent merges multiple forward links in different frequency bands into a unified data delivery system. By combining the capacity of satellite forward link and terrestrial forward link, the system achieves increased bandwidth and faster data delivery speed while maintaining manageable complexity through coordinated control
3Ease of operation
If a single communication link is used for all data types, then the system structure is simple, but the user experience deteriorates due to inconsistent download and upload behavior
Solution Approach 1:
The patent applies local quality by optimizing different forward links for different data types and traffic patterns. For example, satellite forward link may be optimized for broadcast content delivery while terrestrial forward link handles interactive communications, providing consistent and appropriate service quality for each data type without requiring complex user-side configuration
Data Source
AI summary
Data content that is to be utilized, as a whole, at a target device on-board a vehicle is apportioned for delivery onto the vehicle via multiple forward links, each of which is included in a different frequency band and/or used a different protocol. A mapping or selection of a specific portion of the data content for a specific forward link may based on a data content type of the specific portion, as well as on other dynamic or static criteria. The target device may operate on the subsets of the data content as it receives each subset. Thus, time critical/foundational portions of the data content may be delivered using a faster forward link, larger elements of the data content may be delivered using a higher-bandwidth forward link, and/or portions of the data content requiring a higher degree of accuracy may be delivered using a more robust forward link, for example.