Handover Status Report Exchange for Radio Resource Optimization
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Solution Overview
Problem
In wireless communications, the handover process between base stations leads to unnecessary duplicate data transmissions, wasting radio resources and reducing data transmission rates due to inadequate exchange of status information regarding data reception.
Innovation Solution
Implementing a handover procedure that includes exchanging status reports between the mobile terminal and base stations to confirm proper data reception, ensuring that only unacknowledged data is retransmitted, thereby optimizing data transfer efficiency and minimizing resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If status report exchange is not implemented during handover, then the handover procedure is simple and fast, but duplicate data transmissions occur wasting radio resources and reducing data transmission rates
Solution Approach 1:
The patent implements a feedback mechanism where the mobile terminal sends a status report to the target base station during handover, indicating which data packets have been successfully received. The target base station uses this feedback information to determine whether to retransmit data, thereby avoiding duplicate transmissions and optimizing radio resource utilization while maintaining data transmission efficiency
Solution Approach 2:
The status report is exchanged during the handover procedure before data transmission resumes. This preliminary exchange of reception status information allows the target base station to prepare an optimized transmission plan, preventing duplicate transmissions from occurring in the first place rather than correcting them afterward
2Productivity
If status report exchange is implemented during handover, then redundant data transmissions are prevented improving data transmission rates, but the handover procedure becomes more complex
Solution Approach 1:
The status report exchange is merged into the existing handover procedure flow. The mobile terminal sends the status report as part of the handover completion messaging, and the target base station processes this information during its normal handover handling. This integration approach adds the necessary functionality without creating a separate complex procedure, thereby minimizing the increase in system complexity while achieving the goal of preventing duplicate transmissions
Data Source
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AI summary
A mobile communications system comprising, a network with a source network node and a target network node that supports a handover procedure, and a mobile terminal that is allowed to access the source network node and access the target network node according to the handover procedure, whereby information related to a reception status of user data is delivered between at least two among a group comprising the mobile terminal, the source network node, and the target network node. The target network node may receive status information from the source network node. In addition, the target network node may receive a status report from the mobile terminal.