Dynamic Inactivity Timer Policy for Wireless Network Signaling Load
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Solution Overview
Problem
Current cellular systems statically set inactivity timers for wireless devices, leading to inefficient resource management and increased signaling load, as they do not adapt to varying network conditions or device types, resulting in suboptimal user experience and resource utilization.
Innovation Solution
A policy control node dynamically determines inactivity timer policies based on network congestion, service type, and terminal type, communicating these policies to a mobility management node, which then sets the appropriate timer values for base stations, allowing for adaptive resource allocation and reduced paging load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If inactivity timers are set to short values to manage resources efficiently, then resource usage efficiency is improved, but the number of reestablishment operations increases which consumes more signaling resources
Solution Approach 1:
The patent applies dynamics by making the inactivity timer value adjustable and adaptable rather than fixed. The system dynamically modifies timer values based on network conditions, device types, and service characteristics, allowing optimization of the trade-off between resource efficiency and signaling load for different scenarios
Solution Approach 2:
The patent changes the parameter of inactivity timer values based on different conditions. By modifying this critical parameter dynamically according to network congestion levels, device capabilities, and service types, the system optimizes resource management while controlling signaling overhead
2Object-generated harmful factors
If inactivity timers are set to long values to reduce reestablishment operations, then signaling load is reduced, but resource usage efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts timer values based on real-time network conditions and device characteristics, allowing long timers for stable connections to reduce signaling while using shorter timers for resource-intensive scenarios to maintain efficiency
Solution Approach 2:
The patent applies local quality by tailoring inactivity timer values to specific device types, service categories, and network conditions. Different quality levels of service are provided through customized timer settings for different user scenarios
3Device complexity
If static inactivity timer values are used for simplicity, then device complexity is reduced, but adaptability to varying network conditions deteriorates
Solution Approach 1:
The system transitions from static to dynamic timer configuration, where values are automatically adjusted based on network conditions, device types, and service characteristics without requiring complex manual configuration
Solution Approach 2:
The system implements self-service by automatically determining appropriate timer values based on detected conditions rather than requiring manual configuration. The network autonomously optimizes timer settings based on real-time observations and device capabilities
Data Source
AI summary
Example embodiments presented herein are directed towards a policy control node, and corresponding method therein, for determining an inactivity timer for a wireless device. Example embodiments are also directed towards a mobility management node, and corresponding method therein, for determining the inactivity timer for a wireless device. The example embodiments allow inactivity timers to be provided in a dynamic manner based on network conditions.