MME MT Service Handling to Prevent PS Handover Waste
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for processing circuit switched services in evolved packet networks lead to waste of network resources and disruption of ongoing packet switched services due to unnecessary PS service handovers and lack of user notification for mobile terminated services.
Innovation Solution
A method where the Mobility Management Entity (MME) receives an MT service indication from the Mobile Switching Center (MSC), notifies the User Equipment (UE) of the service, and performs subsequent operations based on the UE's response, avoiding immediate PS service handovers and allowing user choice, thus conserving network resources and maintaining ongoing services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the eNodeB executes PS service handover immediately when receiving the page message from the MME, then the MT service can be connected, but network resources are wasted when the user rejects the MT service
Solution Approach 1:
The MME performs preliminary notification to the UE before executing PS service handover. The UE is notified of the incoming MT service and can respond with acceptance or rejection. Only after receiving the UE's response does the MME proceed to trigger the PS service handover, thereby avoiding unnecessary handovers when the user rejects the service.
2Reliability
If the eNodeB executes PS service handover immediately when receiving the page message, then the MT service can be connected, but the ongoing PS service of the UE is impacted
Solution Approach 1:
The MME performs preliminary notification to the UE before executing PS service handover. The UE is notified of the incoming MT service and can respond with acceptance or rejection. Only after receiving the UE's response does the MME proceed to trigger the PS service handover, thereby avoiding unnecessary handovers when the user rejects the service.
3Loss of energy
If the MME sends MT service indication to UE and waits for response, then user choice is allowed and network resources are conserved, but service setup time is extended
Solution Approach 1:
The system dynamically adjusts the service setup process based on UE response. When the UE quickly accepts the MT service, the handover is triggered immediately after notification, minimizing time delay. When the UE rejects the service, the handover is avoided entirely, saving network resources. This dynamic approach balances time efficiency with resource conservation.
Data Source
AI summary
The present invention discloses for the ability for processing circuit switched (CS) services in an evolved packet network. For example, embodiments provide a method that includes: by a mobility management entity (MME), receiving a mobile terminated (MT) service indication from a mobile switching center (MSC); sending the MT service indication to user equipment (UE); and receiving an MT service response returned by the UE and performing subsequent operations according to the MT service response. In the method of the present invention, when an MT service arrives, the MME does not trigger the evolved NodeB (eNodeB) to hand over the packet switched (PS) services of the UE but notifies the UE of the MT service and performs subsequent operations according to the MT service response returned by the UE, thus avoiding the waste of network resources caused by a meaningless handover of PS services.