Multi-USIM UE Paging Control via Network Feedback
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Solution Overview
Problem
Current wireless communication systems lack network-controlled Multi-USIM behavior and paging filtering, leading to inconsistent usage of features by user equipment (UE), where vendors decide when and how to implement paging filtering and cause codes, causing operational challenges for network operators.
Innovation Solution
A method where UE sends an indication of multi-USIM mode to the network, receives confirmation of network support for both paging filtering and cause codes, and decides based on network preference or default behavior to apply filtering or response behavior, ensuring network-controlled usage of these features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE supports both paging filtering and paging cause code, then the UE has more paging response options, but the UE cannot determine which feature to use without network assistance
Solution Approach 1:
The network sends a capability indication message to the UE to provide feedback about which paging features are supported. This feedback mechanism allows the UE to understand the network's capabilities and make informed decisions about which paging response method to use, resolving the uncertainty when multiple features are available.
Solution Approach 2:
The network acts as an intermediary between the UE and the paging system. By providing capability indications and preference information, the network mediates the interaction, guiding the UE on how to respond to paging messages based on network conditions and requirements.
2Ease of operation
If the UE decides paging filtering usage at its own discretion, then the UE has autonomy in paging handling, but the network operator loses control over feature deployment
Solution Approach 1:
The network provides feedback through capability indication messages that communicate network support for specific paging features. This feedback loop enables the network to control feature deployment while the UE maintains operational autonomy in selecting appropriate response methods based on network guidance.
Solution Approach 2:
The paging filtering behavior becomes dynamic rather than static. The UE adjusts its paging handling strategy based on real-time network conditions and capability indications, allowing flexible adaptation while maintaining network control over the overall feature deployment strategy.
3Adaptability or versatility
If the network deploys both paging filtering and cause code features, then the network has more paging control options, but the UE cannot determine which feature to use without network assistance
Solution Approach 1:
The network sends capability indication messages to the UE, providing explicit feedback about which paging features are supported. This feedback mechanism eliminates the need for the UE to detect network capabilities through complex measurement procedures, directly communicating the available features and their preferences.
Solution Approach 2:
The network performs preliminary action by sending capability indications before the actual paging interaction. This advance information preparation allows the UE to understand which features are available and preferred, eliminating the need for complex real-time detection during paging message processing.
Data Source
AI summary
Techniques for controlling Multi-USIM behaviour of user equipment, UE, are provided. For example, a method (400) to be performed by an UE is provided. The method comprises: sending (410), to a network, an indication that the UE supports a multi universal subscriber identity module, USIM, mode; receiving (420), from the network, and indication that the network supports both paging filtering based on paging filtering information from the UE and providing a paging cause code in a paging message to the UE; and in response to receiving the indication from the network, deciding (430) whether to provide the paging filtering information to the network to command the network to apply the paging filtering, or to apply paging response behaviour based on a paging cause code in a paging message received from the network.