Wireless Noise Threshold Management to Prevent Roaming
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Solution Overview
Problem
In cellular wireless communications, excessive noise in preferred coverage areas causes devices to roam or operate in lower priority home or roaming coverage areas, leading to increased costs and diminished user experience.
Innovation Solution
A method and system that selectively manage noise levels by detecting high roaming or usage rates in preferred coverage areas, reducing the noise threshold to trigger a decrease in data transmission rates, thereby reducing the extent of roaming or use of less preferred coverage areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices operate in preferred coverage areas, then user experience and carrier profitability improve, but excessive noise in these areas causes devices to roam to less preferred areas
Solution Approach 1:
The system dynamically adjusts the noise threshold based on roaming rates. When roaming rate exceeds a threshold, the noise threshold is decreased, making the system more sensitive to noise conditions and triggering earlier noise reduction actions. This dynamic adjustment allows the system to adapt to changing network conditions and prevent roaming caused by excessive noise.
Solution Approach 2:
The system implements a feedback mechanism where the roaming rate is continuously monitored and used to adjust the noise threshold. The network entity detects the roaming rate, compares it to a threshold, and adjusts the noise threshold accordingly. This closed-loop feedback ensures that noise management actions are triggered when they are most needed to prevent unwanted roaming.
2Reliability
If noise threshold is reduced to detect and manage noise earlier, then roaming is reduced, but this may trigger unnecessary noise reduction actions in normal conditions
Solution Approach 1:
The noise threshold is not fixed but dynamically adjusted based on the detected roaming rate. When roaming rate is high, the threshold is lowered to trigger noise management. When roaming rate is low, the threshold returns to normal levels, avoiding unnecessary interventions. This dynamic approach simplifies the overall system by using a single adaptive threshold rather than multiple fixed thresholds or complex decision logic.
3Adaptability or versatility
If devices operate in roaming coverage areas, then coverage availability is maintained, but carrier profitability decreases and user experience diminishes
Solution Approach 1:
The system takes preliminary action by monitoring and managing noise levels in preferred coverage areas before devices are forced to roam. By detecting high roaming rates and adjusting the noise threshold proactively, the system prevents noise-related connection failures that would force devices into roaming mode. This preliminary noise management maintains devices in preferred coverage areas, preserving service quality and carrier profitability.
Data Source
AI summary
Disclosed is a method and system to help reduce the extent of roaming or use of lower priority coverage areas in a wireless communication system, by selectively managing the level of noise in a preferred coverage area. A network entity will detect that a particular coverage area has a high rate or roaming or that another coverage area (e.g., a collocated or adjacent coverage area) has a high rate of use, and the network entity will responsively reduce a noise threshold in the particular coverage area so as to then tolerate less noise in the coverage area before taking affirmative action to reduce the level of noise, and thus optimally to reduce the extent of roaming or use of less preferred coverage.