Focused Cellular Network Paging for Bandwidth Optimization
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Solution Overview
Problem
Cellular networks waste bandwidth due to the need to page a larger set of cells when locating a user equipment (UE), as they do not know the UE's location prior to paging, leading to inefficient network operations.
Innovation Solution
The network detects a UE's exit from a last known cell and determines a set of priority paging cells based on the last known cell and exit condition, initially paging the UE with these cells, and if no response is received, it expands to a larger set of cells, utilizing network topology and machine learning components to predict likely cell registration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cellular network performs paging with a larger set of cells to locate a UE, then the UE can be found regardless of location, but the network bandwidth is wasted and paging efficiency is reduced
Solution Approach 1:
The network performs preliminary actions by detecting UE network exits and determining exit conditions before paging is needed. This allows the network to pre-calculate and prepare a focused set of priority paging cells based on the UE's last known cell and exit conditions, so that when paging is required, only the most relevant cells are paged rather than performing a broad search across all cells.
Solution Approach 2:
The patent segments the paging process into two phases: first paging a focused set of priority cells determined by analyzing the UE's last known cell and exit conditions, and then if necessary, expanding to a larger set of cells. This segmentation allows the network to concentrate resources on the most likely cells first, reducing overall bandwidth consumption while maintaining reliable UE location detection.
2Reliability
If the cellular network pages with a larger set of cells, then the probability of locating the UE increases, but the paging overhead and network load increase
Solution Approach 1:
The patent changes the parameter of paging cell selection from a static broad-set approach to a dynamic focused-set approach. By analyzing the UE's last known cell and exit conditions, the network dynamically determines a focused set of priority paging cells that are most likely to contain the UE, thereby improving paging efficiency while maintaining location accuracy.
Solution Approach 2:
The network performs preliminary analysis of the UE's movement patterns and exit conditions before executing the paging operation. This preliminary action enables the network to identify and prioritize specific cells where the UE is most likely to be found, reducing the overall number of cells that need to be paged and improving network productivity.
3Reliability
If the network uses global paging to locate a UE, then all cells can potentially find the UE, but the bandwidth consumption and network resource usage increase significantly
Solution Approach 1:
The network performs preliminary detection of network exits and determination of exit conditions before global paging would be required. This preliminary action enables the network to calculate a focused set of priority paging cells based on the UE's last known cell and exit conditions, replacing the need for broad global paging and significantly reducing bandwidth waste while maintaining reliable UE location guarantee.
Solution Approach 2:
The patent extracts the essential information needed for paging (UE's last known cell and exit conditions) from the complete network state, and uses this extracted information to determine a focused set of priority paging cells. This extraction approach eliminates the need to page all cells globally, reducing bandwidth consumption while maintaining the ability to locate the UE reliably.
Data Source
AI summary
Solutions for focused cellular network paging of a user equipment (UE) include: detecting, by a network, a network exit of the UE from a last known cell and an exit condition for the UE; determining, by the network, a network paging condition; based on at least the last known cell and the exit condition for the UE, determining, by the network, a set of priority paging cells; paging the UE with the set of priority paging cells; and based on at least failing to receive a response by paging the UE with the set of priority paging cells, paging the UE with a larger set of cells. In some examples, the network topology is also used for determining the set of priority paging cells. By starting with the set of priority paging cells, rather than wider global paging, fewer cells are used for paging, thereby saving network bandwidth.