Multi-SIM UE Paging Management for Battery and Resource Efficiency
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Solution Overview
Problem
Dual-SIM smartphones experience network resource loss and increased battery consumption due to continuous paging from the second SIM while active on the first SIM, and hardware limitations such as single RX or single Tx capabilities restrict simultaneous communication with both SIM networks.
Innovation Solution
A method and user equipment (UE) for managing paging procedures in a wireless communication network, allowing the multi-SIM UE to initiate an active data session on a second SIM network while on a first SIM network, send a leaving operator message, and switch networks by triggering procedures to initiate the active data session on the second SIM network, thereby managing paging by sending a paging reject message to the first SIM network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dual-SIM smartphone continues to monitor paging from both SIM networks simultaneously, then it can respond to calls from either network, but it causes network resource loss and increased battery consumption
Solution Approach 1:
The patent implements dynamic paging monitoring by allowing the UE to switch between monitoring paging on the first SIM network and the second SIM network based on active data sessions. When a data session is active on one network, the UE dynamically stops monitoring paging on the other network, and can be paged back when the data session ends. This dynamic adjustment resolves the contradiction by maintaining call responsiveness only when necessary while reducing battery consumption during data usage.
2Device complexity
If the dual-SIM smartphone uses single RX or single Tx hardware capability, then it reduces device complexity and cost, but it cannot communicate with both SIM networks simultaneously
Solution Approach 1:
The patent enables a single RX/Tx hardware to dynamically switch between communicating with the first SIM network and the second SIM network. The system monitors active data sessions and automatically switches the single transceiver to the appropriate network, allowing seamless communication on one network at a time. This dynamic time-division approach resolves the contradiction by providing simultaneous communication capability through sequential access without requiring multiple hardware transceivers.
Solution Approach 2:
The patent implements self-service switching where the UE automatically monitors its own data session status and switches networks based on this information. The system uses RRC connection status and data session information from the network to autonomously determine when to switch between SIM networks, eliminating the need for manual intervention or complex external control while maintaining communication versatility.
3Productivity
If the UE switches networks to initiate active data session on second SIM, then it can utilize local pricing plans and save on mobile data usage, but it requires additional switching procedures and time
Solution Approach 1:
The patent implements preliminary actions by having the UE continuously monitor RRC connection status and data session information from both SIM networks. When a data session is detected on one network, the system proactively switches to that network before data transmission begins, and can proactively page the UE back when the data session ends. This preliminary monitoring and proactive switching reduces the actual switching time required when network changes are needed.
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 provide a method for managing paging procedure by a multi SIM user equipment (UE) in a wireless communication network. The method includes receiving, by the multi SIM UE, a paging message from a first SIM network, where the multi SIM UE is on an active data session on a second SIM network. Further, the method includes reading, by the multi SIM UE, the paging message from the first SIM network and determining, by the multi SIM UE, that a higher priority service is on-going on the second SIM network; and managing, by the multi SIM UE, the paging procedure by sending a paging reject message to the first SIM network of the wireless communication network.