UE Handover Message Delivery in Mobile Networks
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Solution Overview
Problem
In heterogeneous network environments, message handover between User Equipment (UE) often results in message loss during the handover process, as existing methods fail to accurately transfer messages from the before-handover UE to the after-handover UE.
Innovation Solution
A method and device for handover between UEs in a message sending process, where a UE handover request carrying an identifier of the after-handover UE and indication parameters is sent, allowing the after-handover UE to receive messages accurately by either resending or successively sending buffered messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the before-handover UE instructs the message sending UE to stop sending the message and then sends a UE handover message, then the handover process can be initiated, but the message being received by the UE before handover may be lost
Solution Approach 1:
The patent applies preliminary action by having the before-handover UE send indication information to the message sending UE before actually performing handover. This indication information includes parameters about the message sending state, allowing the message sending UE to continue sending messages or buffer them appropriately before the handover completes, thus preventing message loss while maintaining proper handover flow.
Solution Approach 2:
The patent uses an intermediary approach by introducing indication information as a mediator between the before-handover UE and the message sending UE. This indication information carries parameters that coordinate the message sending behavior during handover, acting as a communication bridge that ensures messages are not lost while the handover process is underway.
2Ease of operation
If the before-handover UE sends a UE handover message to instruct handover, then the handover can be triggered, but the message transmission may be interrupted or lost
Solution Approach 1:
The patent applies preliminary action by having the before-handover UE send indication information to the message sending UE before the actual handover execution. This preliminary communication ensures the message sending UE is prepared for the upcoming handover and can appropriately handle message transmission, thereby maintaining reliability while enabling smooth handover operation.
Solution Approach 2:
The patent implements feedback by having the before-handover UE send indication information that provides status feedback about the handover process to the message sending UE. This feedback mechanism allows the message sending UE to adjust its behavior accordingly, ensuring reliable message transmission during the handover process.
Data Source
AI summary
The present invention relates to mobile communication technologies, and discloses a method and a device for handover between User Equipment (UE) in a process of sending a message to enable the after-handover UE receive messages accurately. The method includes: receiving a UE handover request sent by a before-handover UE, wherein the UE handover request carries an identifier of an after-handover UE and indication parameters for sending a message; and sending the message to the after-handover UE according to the identifier of the after-handover UE and the indication parameters for sending the message. The embodiments of the present invention are applied to handover between UEs in the process of sending a message.