Vehicle Mobile Core Network Data Aggregation
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Solution Overview
Problem
In areas with weak RF reception, user devices expend excessive power attempting to establish or maintain a connection to a wireless communication network, and may be unable to connect with available antenna sets.
Innovation Solution
A mobile core network is deployed within a transportation vehicle, equipped with internal and external antennas, which aggregates data from sensor devices, caches it, and transmits it to a macro core network via optimal communication paths, prioritizing high-priority data and caching low-priority data for later transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user devices attempt to establish or maintain connection in weak RF reception areas, then connectivity is attempted, but power consumption increases excessively
Solution Approach 1:
A mobile core network unit is deployed within the transportation vehicle to act as an intermediary between user devices and the macro core network. This local unit establishes a wireless connection with user devices and maintains data buffering capabilities, allowing devices to communicate through the local unit rather than directly through weak external RF signals, thereby reducing their power consumption while maintaining connectivity.
Solution Approach 2:
The mobile core network unit performs preliminary actions by pre-establishing its own connection to the macro core network when signal conditions are favorable, and pre-buffering data in local memory. This allows user devices to connect to the local unit without needing to maintain continuous high-power transmissions to external networks, as data can be transferred when the local unit has accumulated sufficient data buffers.
2Reliability
If user devices use available antenna sets in weak RF reception areas, then connection attempts are made, but connection establishment fails
Solution Approach 1:
The mobile core network unit serves as a local intermediary that receives connections from user devices using their existing antenna configurations. Since the local unit handles the complex communication protocols and maintains the external network connection, user devices can use simpler antenna setups without compromising connection establishment reliability.
3Loss of information
If aggregated sensor data is transmitted immediately, then data freshness is maintained, but transmission opportunities are lost in weak signal areas
Solution Approach 1:
The mobile core network unit performs preliminary data aggregation and buffering operations. Data from multiple sensor devices is collected and stored in local memory buffers in advance, ready for transmission. This preliminary action allows the system to wait for optimal transmission conditions without losing data freshness, as the data is already prepared and queued for immediate transmission when connectivity is available.
Solution Approach 2:
The system maintains continuous data collection and aggregation operations while managing transmission discontinuously based on connectivity availability. The local unit continuously buffers incoming sensor data, ensuring no data is lost, and automatically transmits accumulated data when connection opportunities arise, thereby maintaining both data freshness and transmission reliability.
4Productivity
If all data is transmitted at once when connection is available, then transmission efficiency is improved, but high-priority data may be delayed
Solution Approach 1:
The mobile core network unit implements local quality differentiation by assigning different priorities to different data packets based on their importance. High-priority data is placed in transmission queues that are serviced first, while lower-priority data is buffered separately. This allows the system to maintain high transmission efficiency by batching data while ensuring reliable handling of priority requirements through differentiated queue management.
Data Source
AI summary
In some examples, a data management method in a transportation vehicle includes receiving, at an access point, data from a plurality of sensor devices, aggregating the sensor data, transmitting the aggregated sensor data to a mobile core network located in the transportation vehicle, and caching, at the mobile core network, the aggregated sensor data.