Dynamic Frame Configuration Switching for Wireless Uplink Congestion
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Solution Overview
Problem
Wireless networks face congestion in uplink channels during emergency events due to insufficient uplink resource allocations, as the number of end-user devices increases and demands for data transmission surge, leading to poor communication quality.
Innovation Solution
Implement a system and method for dynamically switching the frame configuration of access nodes in wireless networks from a normal operation configuration to one with more uplink subframes during emergency events, allowing for improved resource allocation and communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the frame configuration is switched to include more uplink subframes during emergency events, then uplink transmission quality is improved, but downlink transmission capacity is reduced
Solution Approach 1:
The patent implements dynamic frame configuration switching that adapts the TDD frame structure based on real-time traffic conditions. During emergency events, the system dynamically increases the proportion of uplink subframes to handle surge in uplink traffic demands, while under normal conditions it maintains a balanced or downlink-oriented configuration. This dynamic adjustment resolves the contradiction by making the frame configuration flexible rather than fixed, allowing the system to optimize for uplink reliability when needed while preserving downlink capacity during normal operation.
2Productivity
If uplink resources are increased during emergency events, then congestion is reduced, but overall network resource efficiency deteriorates
Solution Approach 1:
The patent changes the parameter of frame configuration (specifically the ratio of uplink to downlink subframes) based on traffic conditions. During emergency events, the system increases uplink resource allocation by switching to a frame configuration with more uplink subframes, directly addressing the uplink congestion problem. Under normal conditions, the system reverts to a more efficient balanced configuration. This parameter change approach resolves the contradiction by adjusting resource allocation dynamically rather than maintaining a static inefficient configuration at all times.
3Adaptability or versatility
If the frame configuration is dynamically switched, then adaptability to emergency events is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the system monitors uplink traffic conditions and automatically triggers frame configuration switching when emergency conditions are detected. The network device receives feedback about traffic surges or emergency declarations and responds by switching to an appropriate frame configuration. This feedback-driven approach improves adaptability while managing complexity through automation rather than manual configuration management.
Data Source
AI summary
A system for dynamically setting a frame configuration in a wireless network in an emergency event includes an access node configured to deploy a first radio air interface. The system also includes a plurality of end-user wireless devices attached to the first radio air interface. The system further includes a processor configured to determine a trigger indicating the emergency event associated with one or more of the plurality of end-user wireless devices. The processor is also configured to switch the frame configuration for the access node from a first frame configuration to a second frame configuration, the second frame configuration including more uplink subframes than the first frame configuration.