MPS Fallback via 4G Handover for Priority Services
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Next Generation mobile networks, such as 5G NR, may initially lack support for Multimedia Priority Service (MPS) and experience congestion, which hinders the ability to establish priority calls during network overload, posing challenges for mission-critical communications.
Innovation Solution
Implementing MPS fallback procedures that allow Next Generation networks to redirect MPS calls to Fourth Generation (4G) networks when they do not support MPS or are congested, ensuring continuity of priority services by handover or RRC redirection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Next Generation networks operate at higher frequencies with broad bandwidth to support higher data transfer rates and capacity, then data transfer rate and network capacity are improved, but network congestion occurs more easily during peak usage
Solution Approach 1:
The patent segments the network traffic by priority levels, separating MPS (Multimedia Priority Service) traffic from regular traffic. This is achieved through QoS parameters and priority indicators that route high-priority calls through dedicated paths, preventing congestion from affecting critical services while allowing the network to operate at high capacity.
Solution Approach 2:
The patent introduces QoS intermediaries including QoS parameter fields in signaling messages, priority indicators, and network elements that interpret and enforce QoS policies. These intermediaries mediate between high-capacity network operations and reliable priority service delivery, ensuring MPS calls receive guaranteed resources.
2Device complexity
If Next Generation networks initially lack MPS support to simplify network design, then device complexity is reduced, but the ability to establish priority calls during network overload is hindered
Solution Approach 1:
The patent implements preliminary QoS configuration and priority service support in the 4G network before users migrate to 5G. When 5G networks lack MPS support or experience congestion, the system automatically falls back to 4G networks that have pre-configured QoS policies and MPS capabilities, ensuring priority services remain available without requiring complex 5G QoS implementation.
Solution Approach 2:
The patent changes the operational parameters of the network by introducing QoS parameter fields, priority indicators, and fallback mechanisms that allow the network to dynamically adjust between 5G high-capacity mode and 4G reliable priority service mode based on network conditions and capability.
3Reliability
If Next Generation networks redirect MPS calls to 4G networks during congestion or lack of MPS support, then priority call reliability is improved, but network operation complexity increases
Solution Approach 1:
The patent implements self-service fallback mechanisms where the network automatically detects when MPS services are unavailable or congested in 5G and autonomously redirects calls to 4G networks. The system monitors QoS parameters and network conditions, triggering fallback procedures without requiring manual intervention or complex centralized control, thereby reducing operational complexity while maintaining reliability.
Data Source
AI summary
A Next Generation network device receives, from a user equipment device (UE), a Service Request for establishing a Multimedia Priority Services (MPS) session. The Next Generation network device determines whether the Service Request includes a MPS fallback request to request network fallback from a Next Generation network to a Fourth Generation (4G) network for the MPS session. The device causes, based on the Service Request including the MPS fallback request, establishment of the MPS session from the UE device via the 4G network by performing one of: a handover procedure from the Next Generation network to the 4G network, or a Radio Resource Control (RRC) redirection procedure from the Next Generation network to the 4G network.