Mobile Access Device Data Caching for 5G Connectivity
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Solution Overview
Problem
In 5G wireless networks, terminal devices often face connectivity issues due to limited bandwidth provided by macro cells, especially when high-bandwidth data transfers are required, such as downloading large files, as they rely on mobile relays that offer limited connectivity for short durations.
Innovation Solution
A system that selects and optimizes the use of mobile access devices based on estimated location information to schedule and cache data transfers, ensuring efficient communication performance by pre-allocating communication parameters and utilizing multiple mobile access devices if necessary, thereby bypassing overloaded macro cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminal devices connect to macro cells for data transfer, then network coverage is provided, but bandwidth is limited and connectivity is insufficient for high-speed data transfer
Solution Approach 1:
The patent introduces mobile relay nodes as intermediary devices between terminal devices and macro cells. These mobile relays provide an additional communication path that mediates the connection, enabling high-speed data transfer while maintaining connectivity reliability through dual-path communication (direct macro cell connection and mobile relay connection).
Solution Approach 2:
The system dynamically selects and switches between different access paths (macro cell direct connection and mobile relay connection) based on real-time channel conditions, device mobility, and data transfer requirements. This dynamic adaptation allows the system to optimize both productivity and reliability under varying conditions.
2Productivity
If mobile relays are used to provide high-speed connectivity, then bandwidth is improved, but connectivity duration is limited due to short availability time
Solution Approach 1:
The system performs preliminary actions by pre-establishing communication links with multiple mobile relays before data transfer is needed. Terminal devices and network controllers proactively identify and prepare mobile relay connections in advance, so when high-speed transfer is required, the connectivity is already established and ready for immediate use.
Solution Approach 2:
The system maintains continuous useful action by keeping multiple mobile relay connections active simultaneously or in rapid succession. Instead of relying on a single brief connection, the system ensures continuous data transfer capability by having multiple relay options available, thereby extending the effective connectivity duration through overlapping connection windows.
3Productivity
If multiple mobile access devices are deployed to improve connectivity, then data transfer capability is enhanced, but network complexity increases
Solution Approach 1:
The patent segments the network management function by introducing a dedicated mobile relay controller that specifically handles mobile relay node management, separate from traditional macro cell controllers. This segmentation isolates the complexity of managing multiple mobile relays into a specialized component, allowing the rest of the network to operate with standard protocols while the controller handles the sophisticated coordination of multiple access devices.
Data Source
AI summary
The invention proposes an improved provision of download capability for terminal devices (e.g. smart phones or IoT devices) in a network system by introducing a capability of caching requested data at mobile access devices (e.g. base stations (such as gNBs) or access points) and optimizing scheduling/transfer of data between terminal device and mobile access device and between mobile access device and macro access device.