Conditional Handover Assistance Information Signaling
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Solution Overview
Problem
Current 5G communication systems face inefficiencies in conditional handover processes, leading to resource wastage and handover failures due to either over- or under-configuration of conditional handover settings by base stations.
Innovation Solution
The method involves the terminal reporting conditional handover assistance information to the base station, allowing for personalized configuration based on movement velocity and handover failure records, thereby improving the determination of suitable handover conditions and reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base station configures conditional handover for all terminals, then handover success rate is improved, but network resource waste increases
Solution Approach 1:
The patent applies local quality by differentiating handover configuration strategies based on terminal characteristics. Terminals report their velocity and handover failure history, allowing the base station to identify high-velocity terminals that would benefit from conditional handover while maintaining standard handover for low-velocity terminals, thus avoiding unnecessary resource consumption for terminals that don't need it
Solution Approach 2:
The patent implements preliminary action by having terminals proactively report their velocity and handover failure information before handover decisions are made. This advance information allows the base station to pre-configure conditional handover parameters for terminals that need it, rather than reacting after handover failures occur
2Loss of energy
If base station does not configure conditional handover, then network resources are saved, but handover failures increase
Solution Approach 1:
The patent applies local quality by differentiating handover configuration strategies based on terminal characteristics. Terminals report their velocity and handover failure history, allowing the base station to identify high-velocity terminals that would benefit from conditional handover while maintaining standard handover for low-velocity terminals, thus avoiding unnecessary resource consumption for terminals that don't need it
Solution Approach 2:
The patent implements self-service by having terminals autonomously monitor their own velocity and handover performance, then self-report this information to the base station. This allows terminals to effectively identify their own need for conditional handover without requiring complex base station measurements or analysis
3Measurement precision
If terminal reports detailed assistance information, then handover configuration accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent applies taking out by extracting only the most critical terminal characteristics (velocity and handover failure count) that are most predictive of handover needs. Rather than reporting all possible terminal parameters, the invention focuses on the specific attributes that directly correlate with conditional handover benefits, reducing unnecessary signaling
Solution Approach 2:
The patent implements partial action by having terminals report assistance information selectively rather than continuously. The reporting is triggered by specific conditions or at scheduled intervals, providing the base station with sufficient information to make accurate handover decisions without requiring constant detailed updates from the terminal
Data Source
AI summary
A method and apparatus for requesting conditional handover, a storage medium, a terminal and a base station are provided. The method includes: reporting conditional handover assistance information to assist a base station to determine whether a terminal adopts conditional handover; wherein the conditional handover assistance information indicates that the terminal requests conditional handover.