Network Switching Return Time Indication for UE Activity Duration
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Solution Overview
Problem
In mobile communication systems, particularly in 5G networks, there is a challenge in efficiently managing the temporary absence of user equipment (UE) from one network to perform activities in another network, leading to resource wastage and interrupted connections due to the inability to handle activities lasting longer than the maximum allowed time for temporary absence.
Innovation Solution
The method involves determining if expected activity in a second network element will exceed the maximum allowed time of temporary absence from a first network element, and if so, transmitting an assistance information message to the first network element to indicate a preference to leave the connection, allowing the UE to perform activities in the second network without interrupting the first network connection, and receiving a connection release message to return when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the UE stays connected to the first network element to perform activities in the second network element longer than the maximum allowed time, then the UE can complete its activities without interruption, but the first network element cannot release the connection properly and resources are wasted
Solution Approach 1:
The UE performs preliminary action by sending an assistance information message to the first network element before leaving, indicating its intention to perform activities in the second network element. This allows the first network element to prepare for the connection release and resource reallocation in advance, avoiding resource wastage while enabling the UE to stay connected longer for activity completion.
2Duration of action of moving object
If the UE leaves the connection with the first network element to perform activities in the second network element, then the UE can perform activities exceeding the maximum allowed absence time, but the connection with the first network element is interrupted
Solution Approach 1:
The first network element sends a connection release message with a return indication to the UE before the connection is fully released. This preliminary action ensures that the UE is notified in advance to return to the first network element, maintaining connection reliability while allowing the UE to perform activities in the second network element for durations exceeding the maximum allowed absence time.
3Productivity
If the first network element releases the connection immediately upon receiving the assistance information message, then network resources are freed up quickly, but the UE cannot complete its activities in the second network element
Solution Approach 1:
The first network element performs preliminary action by sending the connection release message with return indication to the UE, allowing resources to be marked for release while the UE completes its activities. This maintains network resource efficiency by preparing for resource reallocation while ensuring activity completion reliability through the return indication mechanism that guides the UE to return when ready.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for return time indication on network switching. A method may include determining that expected activity in a second network element will last more than a maximum allowed time of temporary absence from a first network element while being connected to the first network element. The method may also include transmitting based on the determination, to the first network element, an assistance information message indicating a preference to leave the connection with the first network element. The method may further include receiving a connection release message from the first network element including an indication for a user equipment to return to the connection with the first network element, in response to the assistance information message.