Multi-USIM Terminal Paging Collision Detection and Resolution
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Solution Overview
Problem
Multi-USIM terminal devices struggle to simultaneously monitor paging on all 3GPP radio access technologies in RRC idle or inactive states, leading to paging collisions and unsuccessful paging due to the inability to handle overlapping paging occasions from different USIM cards.
Innovation Solution
The method involves determining at a terminal device whether first paging occasion information overlaps with second paging occasion information and, if so, transmitting an indication of paging collision to a network device associated with the first paging, allowing for timely resolution of the collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-USIM terminal device registers to multiple networks, then the terminal device can access multiple communication networks, but the terminal device cannot simultaneously monitor paging on all 3GPP radio access technologies in RRC idle or inactive state
Solution Approach 1:
The terminal device segments the paging monitoring task by selecting only one paging channel to monitor at a time when paging collision occurs between multiple USIM cards. This segmentation allows the device to handle multiple network registrations while managing paging monitoring resources efficiently by dividing the monitoring task across different time slots or priorities.
Solution Approach 2:
The terminal device dynamically adjusts its paging monitoring behavior based on collision detection. When paging collision is detected between USIM A and USIM B, the device dynamically switches to monitoring only one paging channel, adapting its operation to resolve the conflict while maintaining connectivity to multiple networks.
2Reliability
If the terminal device chooses one paging channel to monitor, then the terminal device can successfully monitor that specific paging channel, but paging on the other paging channel becomes unsuccessful
Solution Approach 1:
The terminal device performs preliminary detection to determine whether paging collision occurs between multiple USIM cards before monitoring paging channels. By detecting the collision in advance, the device can preliminarily select which paging channel to monitor, preventing paging message loss on the selected channel while being aware of the potential loss on the other channel.
3Device complexity
If no specification enhancement is made for multi-USIM terminal devices, then the device structure remains simple, but the performance of multi-USIM terminal devices cannot be assured
Solution Approach 1:
The terminal device autonomously determines whether paging collision occurs and independently selects which paging channel to monitor without requiring complex network-side coordination or additional hardware components. This self-service approach maintains relatively simple device structure while improving multi-USIM performance through intelligent software-based collision handling.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises determining, at a terminal device, whether first paging occasion information of a first paging overlaps with second paging occasion information of a second paging; and in response to the first paging occasion information overlapping with the second paging occasion information, transmitting an indication of paging collision between the first paging and the second paging to a network device associated with the first paging. In this way, the solving of the paging collision issue can be facilitated at RAN side, and low latency and high efficiency can be achieved.