UE Stationary Indicator for Paging Overhead Reduction
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Solution Overview
Problem
Current network technologies face inefficiencies in reducing paging overhead, particularly when user equipment (UE) is stationary or has limited mobility, leading to unnecessary signaling across multiple network cells.
Innovation Solution
The system determines if UE is stationary and transmits a 'no mobility' indicator to the network, reducing the need for paging signals across all cells in a tracking area. When UE moves to a new cell, especially within the same geographical area, updated location information is only sent when necessary, optimizing signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network transmits paging signals to all cells in a tracking area, then the probability of reaching the UE is improved, but the paging overhead and signaling load increase
Solution Approach 1:
The patent segments the tracking area into multiple paging areas based on UE mobility patterns. For stationary UEs, paging is restricted to a single cell or small paging area, while mobile UEs trigger paging across multiple cells. This segmentation reduces unnecessary paging transmissions to cells where the UE is unlikely to be present, directly reducing paging overhead while maintaining reliable delivery through targeted multi-cell paging when needed.
Solution Approach 2:
The patent dynamically adjusts the paging area size and scope based on UE mobility state. The network determines whether a UE is stationary or mobile and adapts the paging strategy accordingly - using single-cell paging for stationary UEs and multi-cell paging for mobile UEs. This dynamic adaptation optimizes the balance between paging reliability and overhead reduction in real-time.
2Measurement precision
If the UE frequently updates location information to the network, then the network can accurately track UE position, but the signaling overhead increases
Solution Approach 1:
The patent applies partial action by having the UE report location information selectively rather than continuously. The UE triggers location updates only when moving between paging areas or when mobility thresholds are exceeded, rather than reporting every cell change. This partial updating maintains sufficient location accuracy for paging purposes while significantly reducing signaling overhead compared to continuous location reporting.
3Measurement precision
If the network monitors UE movement across all cells, then paging accuracy is improved, but network complexity and processing load increase
Solution Approach 1:
The patent applies local quality by having different monitoring and paging strategies for different geographical areas and UE types. The network implements enhanced monitoring only in areas with high mobile UE density, while using simpler strategies for areas with primarily stationary UEs. This localized approach maintains high position tracking accuracy where needed while reducing overall network complexity and processing load.
Data Source
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AI summary
The invention is directed to reducing paging overhead in a network (500). An exemplary method comprises: determining whether a user equipment (UE) (451) is substantially stationary, wherein the UE (451) is located in a first network cell (410) associated with a network (500); in response to determining the UE (451) is substantially stationary, transmitting an indicator to the network (500); determining whether the UE (451) moves from the first network cell (410) to a second network cell (420); and in response to determining the UE (451) moves from the first network cell (410) to the second network cell (420), transmitting updated location information associated with the UE (451) to the network (500).