UE Network Selection Priority During Service Interruptions
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Solution Overview
Problem
Existing techniques for network selection in service interruption scenarios, such as during disasters, are not optimally effective, leading to prolonged service outages and increased signaling load due to suboptimal execution of legacy and roaming network selection procedures.
Innovation Solution
A UE is configured with a configuration parameter to perform network selection based on an indication of a service interruption, allowing it to prioritize roaming network selection procedures and select networks that accommodate inbound roamers, thereby optimizing the network selection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If legacy network selection procedure is performed first, then compatibility with existing networks is maintained, but service restoration time is prolonged
Solution Approach 1:
The patent applies preliminary action by pre-configuring the UE with disaster roaming information and establishing a prioritized network selection sequence before disasters occur. When service interruption is detected, the UE immediately executes the pre-planned roaming network selection procedure followed by legacy procedure, avoiding the time loss of ad-hoc decision-making and achieving faster service restoration while maintaining compatibility through the structured two-stage approach.
2Adaptability or versatility
If multiple network selection procedures are executed sequentially, then comprehensive network coverage is achieved, but signaling load increases
Solution Approach 1:
The patent applies partial action by implementing a conditional execution strategy where the roaming network selection procedure is performed first as a targeted search for disaster-resistant networks, and the legacy procedure is only executed subsequently if the first procedure fails to find a suitable network. This partial execution approach achieves comprehensive network coverage when needed while minimizing unnecessary signaling load by avoiding redundant procedure executions.
3Reliability
If roaming network selection is prioritized, then service continuity during disasters is improved, but complexity of network selection logic increases
Solution Approach 1:
The patent applies dynamics by making the network selection logic adaptive rather than static. The UE dynamically adjusts its network selection behavior based on the detected service interruption condition, switching from normal operation mode to disaster recovery mode with prioritized roaming procedure. This dynamic approach improves service continuity during disasters while managing complexity through context-aware conditional execution rather than always-executing complex logic.
Data Source
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AI summary
This disclosure provides systems, methods and apparatuses for network selection in a service interruption scenario. In some aspects, a user equipment (UE) may receive an indication that a condition is associated with a first network to which the UE is registered. The UE may perform a network selection procedure based at least in part on receiving the indication. In some aspects, the network selection procedure includes a legacy network selection procedure and is associated with roaming information received by or configured on the UE. In some aspects, a UE may receive an indication that a condition is associated with a network to which the UE is registered. The UE may provide, for display and based at least in part on receiving the indication, network selection information associated with a set of networks. The network selection information may include an indication that a given network accommodates inbound roamers.