Wireless Network Access Control via Retransmission Rate Monitoring
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Solution Overview
Problem
In cellular IoT networks, the simultaneous deployment of multiple radio access technologies (RATs) such as NB-IoT and Cat-M1 can lead to inefficiencies and reduced user experience due to inadequate network capability allocation, especially in areas with varying signal conditions, resulting in poor resource utilization and performance.
Innovation Solution
A method and system for dynamically managing wireless device access by setting a retransmission rate threshold, monitoring retransmission rates, and restricting access to specific areas or assigning devices to lower-retransmission-rate RATs based on signal performance parameters like pathloss and RSRP, thereby optimizing resource utilization and improving Quality of Service (QoS).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RATs (NB-IoT and Cat-M1) are deployed simultaneously to provide diverse services, then service coverage and capability are improved, but device complexity and network resource management complexity increase
Solution Approach 1:
The patent implements dynamic RAT selection and configuration by monitoring retransmission rates in real-time and adjusting device assignments between NB-IoT and Cat-M1 based on current network conditions, transforming a static network configuration into a dynamic adaptive system
Solution Approach 2:
The system changes operational parameters by monitoring retransmission rate thresholds and using these parameter variations to trigger RAT switching decisions, allowing the network to adapt to changing signal conditions and load
2Ease of manufacture
If devices are allocated to RATs without considering network conditions, then device deployment is simplified, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements feedback mechanisms by continuously monitoring retransmission rates and using this feedback to dynamically adjust device-RAT assignments, ensuring that resource allocation decisions are based on actual network performance rather than static configurations
Solution Approach 2:
The system enables self-service by allowing the network to automatically monitor its own performance metrics and make intelligent routing decisions without requiring complex manual configuration or external intervention
3Reliability
If retransmission rate threshold is set low to ensure high quality service, then QoS is improved, but access restriction frequency increases reducing network utilization
Solution Approach 1:
The patent applies dynamics by making access restriction decisions based on real-time monitoring of retransmission rates against thresholds, allowing the system to dynamically adjust between maintaining high QoS and maximizing network utilization based on current conditions
Data Source
AI summary
Systems and methods are provided for managing coverage access for wireless devices. A method includes setting a retransmission rate threshold within a wireless network and monitoring a retransmission rate within the wireless network. The method further includes comparing the monitored retransmission rate to the retransmission rate threshold and restricting wireless device access to at least one selected area within the wireless network when the monitored retransmission rate meets the retransmission rate threshold. The area is selected based on signal performance parameters.