UE Migration via Session Snapshots for Spectrum Grant Suspension
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing user equipment (UE) migration between shared spectrum networks, particularly due to suspension of spectrum grants requiring UE to detach from primary networks and migrate to secondary networks, which can be disruptive and impact infrastructure performance.
Innovation Solution
Implementing a UE migration plan that prioritizes UE migration based on active session criteria, using a connection manager to capture snapshot information and coordinate network offloading, load balancing, and reattachment, with geofencing to optimize battery usage and controlled migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of UEs are migrated simultaneously to alternative infrastructure in response to spectrum grant suspension, then service continuity is maintained for UEs, but the alternative infrastructure becomes overloaded and disrupted
Solution Approach 1:
The patent segments the UE migration process by prioritizing UEs into different groups based on service requirements. Critical UEs with active sessions are migrated first with highest priority, while non-critical UEs are migrated subsequently. This segmentation prevents simultaneous migration of all UEs, avoiding overload on alternative infrastructure while ensuring service continuity for critical users.
Solution Approach 2:
The patent implements preliminary action by capturing UE session snapshots before migration occurs. The network entity stores session information, bearer configurations, and other critical data in advance. This preliminary capture of session state enables seamless migration without service interruption, as the alternative infrastructure can quickly restore services using pre-captured snapshot data.
2Productivity
If UE session snapshots are captured and processed for all UEs, then migration prioritization is achieved, but signaling overhead and processing time increase
Solution Approach 1:
The patent applies partial action by capturing session snapshots selectively rather than for all UEs. The network entity identifies UEs with active sessions or critical services and captures snapshots only for those UEs. This selective approach reduces signaling overhead and processing time compared to capturing snapshots for all UEs, while still enabling effective migration prioritization for those who need it.
Solution Approach 2:
The patent implements local quality by applying different snapshot capture strategies to different UE groups. For UEs with critical active sessions, detailed snapshots with full session information are captured. For UEs with minimal or no active sessions, simplified or no snapshots are captured. This localized approach optimizes the balance between migration efficiency and processing overhead based on each UE's specific requirements.
Data Source
AI summary
Various embodiments comprise systems, methods, architectures, mechanisms and apparatus for managing UE migration between a shared spectrum primary and a secondary network by efficiently capturing UE session snapshots so as to prioritize UE migration by active services from the primary to the secondary network in response to loss of spectrum conditions requiring such migration, and to provide a mechanism by which UE are migrated back to the primary network as soon as shared spectrum becomes available.