User Equipment PDN Connection Management for Data Off Exempt Services
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Solution Overview
Problem
In wireless communication systems, there is a challenge in managing Packet Data Network (PDN) connections during data off and data off exempt services, particularly in determining when to generate or not generate PDN connections based on 3GPP PS Data Off Exempt Services, to ensure efficient resource allocation and service compliance.
Innovation Solution
A method where User Equipment (UE) determines whether to generate PDN connections by checking the presence of 3GPP PS Data Off Exempt Services and adjusts its attachment procedure accordingly, avoiding the generation of PDN connections for IMS or non-IMS services if no exempt services exist, and maintaining an attachment state without PDN connections when data off is activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE generates PDN connection during attachment procedure, then network connectivity is established, but network resources are wasted when data off is activated and no exempt services exist
Solution Approach 1:
The UE performs preliminary checking of 3GPP PS Data Off Exempt Services configuration during the attachment procedure before establishing PDN connection. If no exempt services are configured, the UE proactively decides not to generate PDN connection, preventing future resource waste while maintaining attachment state for potential future service needs.
2Loss of energy
If the UE maintains attachment state without PDN connection, then network resource optimization is achieved, but service availability is reduced
Solution Approach 1:
The UE dynamically transitions between attachment-only state and attached-with-PDN-connection state based on real-time service requirements and data off status. When services are needed, the UE can initiate PDN connection establishment, providing flexible adaptation between resource conservation and service availability modes.
3Productivity
If the UE checks for 3GPP PS Data Off Exempt Services before generating PDN connection, then resource allocation efficiency is improved, but procedure complexity increases
Solution Approach 1:
The UE performs the exempt services check as a preliminary step during the attachment procedure, leveraging existing configuration data. This preliminary action integrates seamlessly into the standard attachment flow, adding minimal complexity while achieving efficient resource allocation by avoiding unnecessary PDN connections.
Data Source
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AI summary
An embodiment of the present invention provides a method for user equipment (UE) to transceive signals related to packet data network (PDN) connection in a wireless communication system, the method for transceiving signals related to PDN connection comprising: a step of checking 3GPP PS Data Off Exempt services; a step in which UE determines whether or not to create PDN connection, based on the type of PDN connection the UE wants to create and the result of checking the 3GPP PS Data Off Exempt services; and a step of transmitting a PDN connection request if the UE decides to create the PDN connection.