Multi-USIM Paging Coordination via Network Intermediary
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Solution Overview
Problem
Current multi-USIM devices face challenges in efficiently managing multiple Universal Subscriber Identity Modules (USIMs) within a single device, leading to issues such as missed pages, unnecessary resource waste, and inefficient power consumption due to independent paging monitoring and lack of standardized network-controlled connection suspension and resumption mechanisms.
Innovation Solution
A method where a User Equipment (UE) with multiple USIMs stops monitoring paging for one USIM based on a time domain pattern derived from its UE Identifier, allowing network-controlled activity indication for the second USIM via an established connection with the first USIM, enabling efficient resource management and reducing collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE independently monitors paging for multiple USIMs, then each USIM can receive pages reliably, but power consumption increases and resource wastage occurs
Solution Approach 1:
The patent combines paging monitoring for multiple USIMs into a unified process. When the UE is in connected state for a first USIM, it stops monitoring paging for a second USIM in the same cell, merging the monitoring functions and avoiding redundant operations. The network node coordinates paging delivery across multiple USIMs, consolidating resource usage while maintaining reliable page delivery to the appropriate USIM.
Solution Approach 2:
The patent implements periodic paging monitoring only when necessary. The UE stops periodic paging monitoring for USIMs in idle or inactive states when the UE is in connected state for another USIM, and resumes monitoring when needed. This periodic on-demand approach reduces continuous power consumption while ensuring pages are received when the UE is available.
2Reliability
If the UE monitors paging for all USIMs simultaneously, then no pages are missed, but resource wastage and collision occur
Solution Approach 1:
The patent merges paging monitoring resources by having the UE stop monitoring paging for one USIM when connected to another USIM's network. The network node consolidates paging delivery through the established connection, using a single active connection for data transmission while coordinating paging for multiple USIMs, thereby eliminating redundant monitoring resources and preventing resource collisions.
Solution Approach 2:
The patent extracts the paging monitoring function from simultaneous execution for multiple USIMs. When the UE is in connected state for a first USIM, the paging monitoring for a second USIM is extracted or removed, as the network node can deliver paging information through the established connection. This extraction eliminates redundant resource usage while maintaining complete page delivery through coordinated network control.
3Productivity
If the UE maintains connected state for one USIM, then data transmission is efficient, but paging monitoring for other USIMs is disrupted
Solution Approach 1:
The network node acts as an intermediary between the UE and multiple USIMs. When the UE is in connected state for one USIM, the network node receives and coordinates paging information for other USIMs, delivering it through the established connection. This intermediary role allows the UE to maintain efficient connected state for data transmission while the network ensures paging monitoring reliability for all USIMs through coordinated delivery.
Solution Approach 2:
The patent implements dynamic paging monitoring behavior that adapts to the UE's connection state. The UE dynamically stops paging monitoring for idle or inactive USIMs when in connected state, and the network node dynamically coordinates paging delivery based on the UE's current state. This dynamic adjustment maintains data transmission efficiency while preserving paging reliability through state-dependent behavior.
4Use of energy by moving object
If the UE stops monitoring paging for one USIM, then power efficiency improves, but page delivery may be missed
Solution Approach 1:
The network node serves as an intermediary that receives paging information for USIMs and delivers it through the UE's established connected state. When the UE stops monitoring paging for a second USIM, the network node intercepts the paging message and delivers it via the active connection with the first USIM, using intermediary coordination to maintain power efficiency while ensuring reliable page delivery through alternative routing.
Solution Approach 2:
The system implements dynamic paging delivery coordination where the network node adapts paging delivery methods based on the UE's connection state. When the UE stops monitoring paging for power efficiency, the network dynamically routes paging messages through the active connection, adjusting the delivery mechanism to maintain reliability while the UE maintains efficient power consumption through selective monitoring.
Data Source
AI summary
A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE) with a first Universal Subscriber Identity Module (USIM) and a second USIM, the UE establishes a connection associated with the first USIM, wherein a UE state corresponding to the first USIM enters connected state. The UE stops monitoring paging in a serving cell for the second USIM based on a time domain pattern derived using a second UE Identifier (UE ID) associated with the second USIM, wherein the stopping monitoring paging is performed when the UE state corresponding to the first USIM is connected state and a UE state corresponding to the second USIM is idle state or inactive state. The UE receives, in a serving cell for the first USIM from a network node, an indication associated with activity for the second USIM via the connection associated with the first USIM.