Light Connection Paging Area Management for Signaling Load Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing network load associated with signaling in mobile communication systems, particularly due to the rising frequency of radio terminal connections and paging operations, necessitates efficient methods to reduce signaling overhead and improve network performance.
Innovation Solution
A radio terminal and base station configuration that transitions to a 'Light Connection' state, where the radio terminal receives a unicast signal to configure paging area information and determines whether the current serving cell supports this state, allowing for efficient cell reselection and paging scheme switching between RAN and core network-initiated paging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radio terminal frequently connects to the network and the network performs paging operations, then the network load associated with signaling increases, but the connectivity and responsiveness of the radio terminal is improved
Solution Approach 1:
The paging area is divided into multiple cells, and the terminal is configured with a specific paging area (set of cells) for RAN-initiated paging. This segmentation allows the network to page the terminal in a smaller, more targeted area rather than across the entire network, reducing the signaling load while maintaining reliable connectivity.
Solution Approach 2:
The patent implements location-specific paging by configuring the terminal with a particular paging area (a subset of cells) rather than requiring network-wide paging. This local quality approach ensures that paging signals are only transmitted in relevant areas, reducing overall network signaling load while maintaining reliable terminal connectivity where needed.
2Productivity
If the radio terminal uses a paging scheme initiated by the base station with configured paging area information, then the signaling overhead is reduced, but the terminal must determine whether the current serving cell supports this state
Solution Approach 1:
The terminal is pre-configured with paging area information (a set of cells) before entering the light connection state. This preliminary configuration allows the terminal to quickly determine whether the current serving cell supports RAN-initiated paging by checking if it belongs to the configured paging area, reducing the complexity of real-time decisions while improving signaling efficiency.
3Productivity
If the radio terminal transitions to a light connection state with RAN-initiated paging, then the network load is reduced, but the terminal must perform cell reselection and potentially switch to core network-initiated paging
Solution Approach 1:
The patent implements a dynamic paging scheme where the terminal can operate in light connection state with RAN-initiated paging when in the configured paging area, and automatically switch to core network-initiated paging when moving outside the paging area or when RAN paging is unavailable. This dynamic adaptation reduces network load while maintaining ease of operation through automated state transitions.
Solution Approach 2:
The terminal monitors whether the current serving cell supports RAN-initiated paging by checking if it belongs to the configured paging area. Based on this feedback, the terminal automatically switches between RAN-initiated and core network-initiated paging schemes, reducing network load while maintaining ease of operation through adaptive behavior.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A radio terminal according to one embodiment is used in a mobile communication system. The radio terminal includes a receiver that receives, from a base station, a unicast signal causing the radio terminal to transition to a specific state and a controller that causes the radio terminal to transition to the specific state in response to the reception of the unicast signal. The specific state is a state in which paging area information indicating a paging area used in a paging scheme initiated by the base station is configured in the radio terminal. The receiver further receives an area identifier broadcast from the base station. The controller holds the area identifier as the paging area information as a predetermined condition is satisfied. The predetermined condition includes a condition that the area identifier is designated from the base station as the paging area information.