IP-Based Multi-USIM Registration for Coordinated Network Operations
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Solution Overview
Problem
Current wireless communication systems lack support for multi-USIM devices, leading to performance degradations and reduced system capacity due to uncoordinated multi-registration scenarios, with networks being unaware of UE capabilities for multiple USIMs.
Innovation Solution
A user equipment (UE) detects the presence of multiple USIMs and sends an IP-based multi-USIM registration message to an IP-based multi-USIM server or Application Function (AF), providing information on USIM presence, identification, connectivity, and capabilities, enabling network coordination and efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a multi-USIM device uses a single RF platform to register with multiple networks, then device complexity is reduced, but system capacity and performance degrade due to uncoordinated multi-registration scenarios
Solution Approach 1:
The patent introduces a network coordination entity that acts as an intermediary between multiple networks and the multi-USIM device. This entity manages and coordinates the multi-registration scenarios, allowing the device to maintain connections with multiple networks simultaneously without causing performance degradation. The coordinator handles resource allocation and collision avoidance, resolving the contradiction between using a single RF platform and maintaining system capacity.
2Device complexity
If the network system remains ignorant of UE multi-USIM capabilities, then network simplicity is maintained, but coordination of multi-USIM operations and collision avoidance become impossible
Solution Approach 1:
The patent segments the network architecture by introducing a dedicated multi-USIM coordination entity separate from the core network infrastructure. This entity specifically handles multi-USIM capability detection, registration management, and collision avoidance, while the rest of the network remains unchanged. This segmentation allows the network to gain multi-USIM coordination capabilities without fundamentally altering the overall network structure.
Solution Approach 2:
The patent implements preliminary action by having the network coordination entity detect and register multi-USIM capabilities before actual multi-network operations begin. The entity proactively manages registration states and prepares coordination strategies in advance, enabling reliable multi-USIM operations and collision avoidance before problems occur.
3Adaptability or versatility
If a UE must listen to paging of other networks while connected to one network, then multi-network awareness is achieved, but connection stability degrades due to potential connection drops
Solution Approach 1:
The patent implements feedback mechanisms where the network coordination entity continuously monitors the UE's connection state across multiple networks. When paging is detected on one network while connected to another, the coordinator provides feedback to make informed decisions about connection management, preventing unnecessary connection drops and maintaining stability while preserving multi-network awareness.
Data Source
AI summary
A user equipment (UE) for wireless communication includes one or more non-transitory computer-readable media having computer-executable instructions embodied thereon, at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to: detect, by a multiple-universal subscriber identity module (multi-USIM) application of the UE at a Mobile Terminal (MT) level, a presence of a first USIM belonging to a first core network and a second USIM belonging to a second core network, and send an Internet Protocol (IP)-based multi-USIM registration message to an IP-based multi-USIM server or Application Function (AF), where the IP-based multi-USIM registration message comprises at least one of an indication of the presence of the first and second USIMs, information pertaining to identification, connectivity and preference information of the UE, and capabilities associated with the first and the second USIMs.