Dynamic Paging Area Adjustment for Wireless Networks
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Solution Overview
Problem
Current paging processes in cellular wireless networks often compromise call setup time due to limited air-interface channels, as they either maximize first-page success rate at the cost of increased paging channel occupancy or reduce channel occupancy at the expense of decreased first-page success rate.
Innovation Solution
A method that identifies multiple paging areas based on a reference location, determines paging-channel occupancies, and adjusts the paging area dynamically by adding or removing coverage areas with low or high occupancies to balance first-page success rate and channel occupancy, thereby optimizing call setup time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the paging area is expanded to maximize first-page success rate, then call setup time is reduced, but paging channel occupancy increases
Solution Approach 1:
The patent implements dynamic paging area adjustment by monitoring paging channel occupancy metrics and adapting the paging area size in real-time. The system transitions from static paging areas to dynamically adjusted paging areas that expand or contract based on current channel conditions, resolving the contradiction between maximizing first-page success rate and controlling channel occupancy
Solution Approach 2:
The system changes the parameter of paging area size based on measured paging channel occupancy. By adjusting this key parameter dynamically, the system optimizes the balance between call setup time (first-page success rate) and channel resource consumption, allowing the paging area to grow when occupancy is low and shrink when occupancy is high
2Quantity of substance
If the paging area is reduced to decrease paging channel occupancy, then channel usage is optimized, but first-page success rate decreases
Solution Approach 1:
The patent employs feedback mechanisms by continuously monitoring paging channel occupancy metrics and using this information to adjust the paging area size. This closed-loop control ensures that the system maintains optimal performance by responding to actual channel conditions, preventing both excessive occupancy and unacceptable drops in first-page success rate
Solution Approach 2:
The system transforms the static paging area configuration into a dynamic one that adapts to changing network conditions. By making the paging area size adjustable based on real-time metrics, the system can optimize channel usage without permanently sacrificing first-page success rate, as the area can expand when needed
Data Source
AI summary
An access network may identify paging areas based on a reference location (e.g., a mobile station's last known location), where each paging area includes at least one coverage area. The access network may then determine paging-channel occupancies for coverage areas in at least identified paging area. In turn, the access network may adjust a given identified paging area based on the determined paging-channel occupancies, resulting in an adjusted paging area. For example, the access network may add coverage areas to the given identified paging area and/or remove coverage areas from the given identified paging area based on the paging-channel occupancies for those coverage areas. Thereafter, the access network may page a mobile station associated with the reference location in the adjusted paging area.