Dynamic Data Inactivity Timer for Wireless Network Resource Control
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Solution Overview
Problem
The selection of a suitable initial value for the data inactivity timer in wireless communication networks is challenging, as a large value leads to inefficient release of network resources during high traffic and a small value results in unnecessary resource release during low traffic, affecting bandwidth efficiency.
Innovation Solution
The data inactivity timer is set to a value based on current IP address usage, increasing for low usage and decreasing for high usage to expeditiously release underutilized network resources, and dynamically updated as IP address usage changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large initial value is set for the data inactivity timer, then network resources are maintained available for always-on mobile stations, but network resources are not released expeditiously during high traffic conditions
Solution Approach 1:
The patent applies dynamics by making the data inactivity timer value adjustable rather than fixed. The timer is dynamically modified based on network conditions: it starts with a first initial value during low traffic to maintain resources for always-on stations, and is reduced to a second initial value during high traffic to expedite resource release. This dynamic adjustment resolves the contradiction between maintaining resource availability and enabling rapid resource release.
Solution Approach 2:
The patent changes the parameter of the data inactivity timer value based on network traffic conditions. By monitoring network load and adjusting the timer's initial value parameter accordingly (first initial value for low traffic, second initial value for high traffic), the system optimizes both resource availability and release speed, resolving the technical contradiction.
2Productivity
If a small initial value is set for the data inactivity timer, then network resources are released quickly, but resources are unnecessarily released during low traffic conditions
Solution Approach 1:
The system dynamically adjusts the data inactivity timer value based on real-time network conditions. During low traffic periods, the timer uses a first initial value that is larger, preventing unnecessary resource release and maintaining availability for always-on mobile stations. During high traffic periods, the timer uses a second initial value that is smaller, enabling rapid resource release. This dynamic behavior resolves the contradiction between quick resource release and maintaining resource stability.
Solution Approach 2:
The patent modifies the parameter of the data inactivity timer based on network traffic conditions. By changing the initial value parameter from a first value (during low traffic) to a second value (during high traffic), the system achieves both quick resource release when needed and resource stability when not needed, resolving the technical contradiction.
3Ease of operation
If the data inactivity timer is fixed, then system operation is simple, but it cannot adapt to varying network traffic conditions
Solution Approach 1:
The patent transforms the static data inactivity timer into a dynamic one that automatically adjusts its initial value based on network traffic conditions. The system monitors network load and modifies the timer parameter accordingly, enabling adaptation to varying traffic conditions while maintaining relatively simple operation through automated adjustment rather than manual reconfiguration.
Solution Approach 2:
The patent enables the data inactivity timer parameter to change based on network conditions. By implementing automatic parameter adjustment mechanisms that modify the timer's initial value according to traffic load, the system achieves adaptability to varying network conditions while keeping the operational interface simple, resolving the contradiction between ease of operation and adaptability.
Data Source
AI summary
One illustrative method of for use in controlling network resources in a wireless network involves assigning, from a pool of IP addresses, a temporary IP address for a mobile station in the wireless network; calculating a ratio or percentage of the number of IP addresses and the total number of IP addresses in the pool; setting a timer value for the mobile station to an initial value that depends on the ratio or percentage of IP addresses such that, as the ratio or percentage increases, the initial value decreases; causing the temporary IP address and the timer value to be sent to the mobile station, which is adapted to register the temporary IP address with a home agent for IP mobility service; and communicating a termination request which terminates the IP mobility service if no request for re-registration is received from the mobile station upon expiration of the timer value.