Frequency-Aware Cellular Networks for Dynamic Band Switching
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Solution Overview
Problem
Existing 5G cellular communication systems face challenges in efficiently managing frequency changes, particularly in dual-mode or non-standalone devices, leading to suboptimal service adjustments and increased signaling overhead.
Innovation Solution
A frequency-aware cellular communication network where mobile devices and radio access network devices proactively notify the core network about frequency band changes, enabling dynamic service adjustments and minimizing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If 5G systems use higher frequencies for faster speeds and lower latency, then data transmission performance is improved, but communication range deteriorates
Solution Approach 1:
The system dynamically switches between different frequency bands (low-band, mid-band, high-band) based on real-time conditions such as user mobility, service requirements, and signal quality. This allows the network to adaptively optimize the trade-off between speed and range by selecting appropriate frequency bands for different scenarios
2Reliability
If dual-mode devices communicate with both 4G and 5G antennas, then service continuity is improved, but signaling overhead increases
Solution Approach 1:
The network performs preliminary frequency band identification and determines appropriate service policies before actual data transmission begins. By pre-configuring the frequency band information and service policies, the system avoids excessive signaling during active communication while ensuring service continuity across 4G and 5G networks
Data Source
AI summary
The described technology is generally directed towards a frequency-aware cellular communication network. A mobile device, or a radio access network (RAN) device at a base station in communication with the mobile device, can proactively notify a core network device regarding changes of a frequency band used for communications between the mobile device and the base station. The core network can use received notifications to adjust service provided to the mobile device.