Network-Side Paging Filtering for Multi-SIM UE Service Continuity
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Solution Overview
Problem
Multi-connection user devices experience service interruptions and data loss due to overlapping paging occasions and unexpected tuning away from current connections, leading to resource wastage and undesired network behavior.
Innovation Solution
The network is enabled to handle incoming operation requests, such as paging messages, based on user-defined profiles and conditions, allowing it to decide which messages are forwarded to the UE, thereby reducing tune-away time and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE monitors all paging occasions for multiple connections, then no paging messages are lost, but service interruptions and tune-away time increase
Solution Approach 1:
The network entity acts as an intermediary by filtering paging messages before they reach the UE. The network evaluates incoming paging messages against stored profile information and selectively forwards only those that match the UE's current connection state and user-defined criteria, preventing the UE from needing to monitor all possible paging occasions across multiple connections.
Solution Approach 2:
The UE's profile information, including connection states and paging preferences, is stored in the network entity in advance. This preliminary storage of filtering criteria enables the network to pre-evaluate incoming paging messages and determine which ones should be forwarded to the UE, eliminating the need for the UE to perform real-time evaluation and monitoring of all paging occasions.
2Reliability
If the UE monitors paging occasions for multiple connections, then all operation requests are received, but power consumption increases
Solution Approach 1:
The network entity serves as a filtering intermediary that reduces the number of paging messages the UE must process. By evaluating incoming messages against stored profile information and forwarding only relevant ones, the network significantly reduces the UE's monitoring and processing workload, thereby lowering power consumption while maintaining reliable reception of important operation requests.
Solution Approach 2:
Instead of the UE monitoring all paging occasions for all connections (excessive action), the system implements partial monitoring where the UE only receives and processes paging messages that match its current connection state and user-defined criteria. This selective approach reduces energy expenditure while ensuring all necessary operation requests are captured.
3Reliability
If the network forwards all paging messages to the UE, then no messages are lost, but the UE experiences unexpected tuning away and service interruptions
Solution Approach 1:
The network entity functions as a smart intermediary that filters paging messages based on the UE's profile information stored in the network. By evaluating incoming messages against the UE's current connection state and user-defined criteria before forwarding, the network ensures reliable delivery of relevant messages while preventing unexpected tune-away events that would disrupt service continuity.
Solution Approach 2:
The UE's connection states and paging preferences are stored in the network entity in advance, enabling preliminary evaluation of incoming paging messages. This pre-configured filtering prevents the UE from receiving messages that would cause unexpected tuning away from active connections, thereby maintaining service continuity while ensuring reliable delivery of appropriate operation requests.
4Reliability
If the UE handles all operation requests, then complete service is maintained, but resource wastage occurs
Solution Approach 1:
The network entity acts as a filtering intermediary that prevents resource wastage by evaluating incoming paging messages against the UE's profile information before forwarding. This ensures the UE only receives and processes operation requests that are relevant to its current state and user preferences, maintaining complete service for necessary operations while eliminating waste from handling unnecessary messages.
Solution Approach 2:
Instead of the UE handling all incoming operation requests (excessive action), the system implements partial handling where the UE processes only those messages that match its current connection state and user-defined criteria. This selective approach, enabled by network-side filtering, maintains service completeness for relevant operations while reducing resource wastage from processing unnecessary messages.
Data Source
Figure 1(a)~1(b)
Figure 2(a)~2(b)
Figure 3
AI summary
A user device, UE, for a wireless communication system is described. The UE is to signal to the wireless communication system information enabling a network entity of the wireless communication system to decide how to handle one or more incoming operation requests for the UE. In particular, the multi-SIM UE signals (400) to the network node of said system, information to form part of a User Preferred Paging Profile, UPPP, with conditions, UPPPC, for determining where and when said UE shall be paged.