Selective Paging Cause Signaling for Multi-SIM Base Stations
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Solution Overview
Problem
In mobile communication networks, sending a paging cause to all base stations in a tracking area (TA) results in unnecessary signaling waste, especially for terminals with multiple SIM cards, as they can resolve communication conflicts independently.
Innovation Solution
A method where a terminal requests a core network device to send a paging cause to specific base stations based on request information, allowing the core network device to send the paging cause only to those indicated stations, reducing unnecessary signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the core network device sends a paging cause to all base stations in a tracking area, then all base stations can handle paging requests, but signaling waste increases unnecessarily
Solution Approach 1:
The patent segments the tracking area into multiple base station groups, where only specific base stations (those with terminals in idle state) receive the paging cause information. This segmentation allows selective distribution of signaling resources, avoiding unnecessary transmission to all base stations while ensuring reliable paging handling for the relevant subset.
Solution Approach 2:
The patent applies local quality by differentiating the treatment of base stations based on their local conditions. Base stations with terminals in idle state receive paging cause information, while those without idle terminals do not. This localized approach optimizes signaling distribution according to actual needs at each base station, reducing overall signaling waste while maintaining necessary paging capabilities.
2Area of stationary object
If the core network device sends paging cause to multiple base stations, then paging coverage is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the paging coverage area into multiple base station regions, determining which specific base stations need to receive paging cause information based on terminal locations and idle states. This segmentation enables targeted signaling distribution across the coverage area, improving paging effectiveness while minimizing the quantity of signaling messages transmitted.
3Reliability
If the core network device sends paging cause to all base stations, then paging reliability is ensured, but network resource consumption increases
Solution Approach 1:
The patent implements local quality by assessing the specific conditions at each base station (whether terminals are in idle state) and selectively distributing paging cause information only to base stations where it is needed. This approach maintains paging delivery reliability for relevant terminals while significantly reducing network resource consumption compared to universal distribution to all base stations.
Data Source
AI summary
A method for indicating a paging cause, performed by a core network device, includes receiving request information sent by a terminal, wherein the request information requests the core network device to send a paging cause for a paging signaling to at least one base station; and sending the paging cause to the at least one base station. The terminal may be configured with at least first and second SIM cards. A method for requesting a paging cause, performed by a terminal, includes: sending request information to a core network device, wherein the request information comprises information of at least one base station, and the request information requests the core network device to send a paging cause for a paging signaling to the at least one base station.