Multi-SIM UE Targeted Paging for Lower Signaling Load
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Solution Overview
Problem
In multi-SIM User Equipment (UE) with SIM cards belonging to the same network operator's network, the existing TA List broadcast paging method leads to high signaling load and paging resource waste.
Innovation Solution
A method to determine the first base station accessed by the connected SIM card in multi-SIM UE and send paging signaling only to that station, reducing unnecessary signaling to other base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TA List broadcast paging method is used for multi-SIM UE, then all base stations in the network can receive paging signaling, but signaling load and paging resource waste increase significantly
Solution Approach 1:
The patent applies local quality by differentiating paging methods based on SIM card network affiliation. For SIM cards belonging to the same network operator, targeted paging to the specific base station is used instead of broadcast paging to all base stations. This localized approach reduces signaling load while maintaining reliable paging delivery for same-network SIMs.
Solution Approach 2:
The patent segments the paging approach by network operator affiliation. It divides SIM cards into different groups based on whether they belong to the same network operator or different network operators, and applies different paging strategies to each segment. This segmentation enables optimized resource utilization while ensuring comprehensive paging coverage.
2Reliability
If TA List broadcast paging method is used for multi-SIM UE, then paging can reach all possible locations, but paging resource waste occurs
Solution Approach 1:
The patent applies partial action by sending paging signaling only to the necessary subset of base stations rather than all base stations in the network. For SIM cards of the same network operator, paging is directed only to the specific base station where the UE is currently accessed, eliminating excessive paging actions to unrelated base stations and reducing paging resource consumption.
Solution Approach 2:
The patent changes the paging parameter from broadcast to targeted based on network operator affiliation. When SIM cards belong to the same network operator, the system changes from using TA List broadcast paging (high resource consumption) to using specific base station targeted paging (low resource consumption), thereby optimizing paging resource allocation while maintaining delivery reliability.
3Device complexity
If each SIM card is treated as a separate terminal, then network identification is simplified, but network operator resource optimization is lost
Solution Approach 1:
The patent introduces dynamic paging strategy selection based on real-time network operator affiliation checks. The system dynamically adjusts the paging approach by first determining whether SIM cards belong to the same network operator, then selecting either targeted paging or broadcast paging accordingly. This dynamic adaptation optimizes network resource utilization while maintaining clear terminal identification.
Solution Approach 2:
The patent implements feedback by checking network operator affiliation before executing paging. The system retrieves network operator information for each SIM card, compares them, and uses this feedback to determine the appropriate paging method. This feedback mechanism enables intelligent resource allocation, improving network productivity while maintaining simplified terminal identification.
Data Source
AI summary
A paging method, includes: in response to determining that user equipment (UE) to which a Subscriber Identification Module (SIM) card to be paged belongs is multi-SIM user equipment and multiple SIM cards of the multi-SIM UE belong to a same network operator's network, determining a first base station accessed by the connected SIM card of the multi-SIM user equipment; and sending paging signaling for paging the SIM card to be paged to the first base station.