Multi-SIM UE Paging Handling via Non-3GPP Access Decision
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Solution Overview
Problem
In multi-SIM user equipment (UE) devices, existing methods for handling paging messages over non-3GPP access lead to reduced throughput and resource wastage on the primary SIM due to the need to abandon ongoing services when a lower-priority service is detected on a secondary SIM, impacting user experience and network efficiency.
Innovation Solution
A method and device for multi-SIM UE to determine whether to re-establish user-plane resources over 3GPP access based on information in the paging message, allowing it to ignore or respond to the message by including or excluding PDU session status information, thereby managing resource allocation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the multi-SIM UE responds to paging messages over 3GPP access for non-3GPP services, then the secondary SIM can establish connection for pending services, but the primary SIM's ongoing services are interrupted and throughput is reduced
Solution Approach 1:
The UE performs preliminary actions by checking the access type indication in the paging message before responding. When the indication shows non-3GPP access type, the UE proactively decides not to respond to the paging message, thereby preventing the need to interrupt primary SIM services later. This advance decision-making resolves the contradiction by avoiding the throughput reduction issue before it occurs.
2Reliability
If the multi-SIM UE switches to connected mode on secondary SIM, then pending services can be established, but network resources are wasted due to unnecessary connection establishment and subsequent abandonment
Solution Approach 1:
The system uses feedback from the access type indication in the paging message to make intelligent decisions. The UE monitors the access type information and uses this feedback to determine whether to respond to paging messages. This feedback mechanism prevents unnecessary connection establishment for non-3GPP services, thereby eliminating network resource wastage while maintaining reliable service establishment for legitimate 3GPP paging scenarios.
3Productivity
If the UE monitors all paging messages on both SIMs, then no service is missed, but the complexity of managing service priorities and access types increases
Solution Approach 1:
The invention extracts and utilizes the access type indication information from paging messages as a key differentiator. By focusing on this specific piece of information, the UE simplifies its decision-making process - it only needs to check the access type indication to determine whether to respond, rather than complexly analyzing service priorities and making intelligent decisions. This extraction approach reduces device complexity while maintaining effective service monitoring.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments herein disclose a method of handling a paging message on a multi-subscriber identity module (SIM) user equipment (UE), the method comprising: receiving a paging message over a 3GPP access for a pending downlink data, wherein the pending downlink data is to be sent over a non-3GPP access; determining whether to re-establish user-plane resources over a 3GPP access using at least one protocol data unit (PDU) session of the non-3GPP access based on the paging message; and performing one of: responding to the paging message in response to determining that the user-plane resources are to be re-established using at least one PDU session of the non-3GPP access over the 3GPP access and not responding to the paging message in response to determining the user-plane resources are not to be re-establish using at least one PD U session of the non-3GPP access over the 3GPP access.