Bandwidth Part Reallocation for False Capability Advertising
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Solution Overview
Problem
Wireless devices falsely advertising their supported bandwidth capabilities lead to connectivity failures and network performance degradation, such as access failures and dropped calls, due to incorrect Bandwidth Part (BWP) configurations.
Innovation Solution
A system and method for intelligently reallocating bandwidth parts by monitoring connectivity failures and reconfiguring wireless devices to utilize different bandwidths than advertised, based on a predetermined threshold, to correct false advertising and improve network robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless devices advertise their supported bandwidth capabilities, then bandwidth allocation efficiency is improved, but connectivity failures increase due to false advertising
Solution Approach 1:
The access node monitors connectivity failure rates and uses this feedback to detect false bandwidth advertising. When the failure rate exceeds a threshold, the system reconfigures the bandwidth assignment, creating a closed-loop control mechanism that adapts to device behavior and maintains reliable connectivity.
Solution Approach 2:
The system dynamically changes the bandwidth assignment parameter based on monitored connectivity failures. When false advertising is detected, the access node reassigns a different bandwidth configuration than what the device advertised, effectively correcting the parameter to match actual device capabilities.
2Speed
If access nodes assign bandwidth based on advertised capabilities, then configuration speed is improved, but network robustness deteriorates due to incorrect configurations
Solution Approach 1:
The system performs preliminary bandwidth assignment based on advertised capabilities for fast initial configuration. However, it prepares alternative bandwidth configurations in advance that can be quickly deployed if connectivity failures indicate false advertising, thus maintaining both speed and robustness.
Solution Approach 2:
The bandwidth assignment becomes dynamic rather than static. The system initially assigns bandwidth based on advertising, then monitors performance and adapts the assignment in real-time based on connectivity failure rates, transitioning from a static trust-based model to a dynamic verification-based model.
3Productivity
If wireless devices use full carrier bandwidth, then data transmission capacity is improved, but power consumption increases
Solution Approach 1:
Instead of uniformly assigning full bandwidth to all devices, the system applies local quality by assigning bandwidth parts tailored to each device's actual capabilities and needs. Devices that don't require full bandwidth receive narrower allocations, reducing their power consumption while maintaining adequate data transmission capacity.
Solution Approach 2:
The system changes the bandwidth parameter from a fixed full-carrier allocation to variable bandwidth part allocations. This allows the network to optimize the balance between data transmission capacity and power consumption by adjusting bandwidth assignments based on actual device requirements and capabilities.
Data Source
AI summary
Methods and systems provided herein include intelligent bandwidth parts allocation to improve overall network performance. A method includes determining that the number of connectivity failures of a wireless device configured in accordance with its advertised bandwidth meets a predetermined threshold and reconfiguring the wireless device to utilize a new assigned bandwidth that differs from the advertised supported bandwidth received from the wireless device.