Handover Bias Values in Inter-Vehicle Communication
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently performing handover in vehicle-to-vehicle communication systems, particularly in densely distributed vehicle environments, and struggle to manage over-traffic issues due to vehicle mobility and density.
Innovation Solution
A method and apparatus for performing handover by a User Equipment (UE) that involves receiving bias values from a Base Station and other UEs, with the UE and other UEs set as the same group, to determine and apply bias values for efficient handover, considering factors like cell signal strength, traffic information, and mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional handover methods are used in densely distributed vehicle environments, then handover can be performed, but over-traffic problems occur due to vehicle mobility and density
Solution Approach 1:
The patent applies parameter changes by introducing bias values that modify the handover decision criteria. The base station and UEs exchange bias information that adjusts the signal strength thresholds for handover, allowing the system to adapt to dense vehicle environments by changing the parameters governing handover triggers, thereby reducing unnecessary handovers and traffic load.
Solution Approach 2:
The patent implements preliminary action by having the base station pre-configure bias values and UE group information before handover decisions are made. The base station determines appropriate bias values based on predicted traffic conditions and vehicle density, and UEs prepare by storing this bias information in advance, enabling faster and more efficient handover decisions when needed.
2Reliability
If handover is performed frequently in mobile vehicle environments, then communication continuity is maintained, but system complexity increases
Solution Approach 1:
The patent merges handover management for multiple UEs by introducing UE groups with shared bias values. Instead of managing handover parameters individually for each UE, the base station creates groups of UEs with similar characteristics and applies common bias values to the group, reducing the overall complexity of handover management while maintaining communication continuity.
Solution Approach 2:
The patent simplifies the system by changing the handover decision parameters to include pre-calculated bias values that encapsulate complex environmental factors. Rather than requiring UEs to continuously analyze multiple parameters independently, the system uses modified handover thresholds that incorporate bias information, reducing computational complexity while ensuring reliable handover execution.
3Productivity
If bias values are exchanged between base station and UEs, then handover efficiency is improved, but information overhead increases
Solution Approach 1:
The patent optimizes information exchange by changing the format and granularity of bias value transmission. Instead of exchanging detailed handover parameters continuously, the system transmits condensed bias values that represent aggregated handover conditions. This parameter compression reduces the amount of information overhead while maintaining handover efficiency through the use of simplified bias indicators.
Data Source
AI summary
In the present invention, provided is a method for performing handover, by a first terminal, in an inter-vehicle communication system. Here, the method for performing handover, by the first terminal, may comprise the steps of: receiving information on a first bias value from a base station; receiving information on a second bias value from a second terminal; and performing handover on the basis of the first bias value and the second bias value. Here, the first terminal and the second terminal are configured in the same terminal group, the first bias value is a bias value for the terminal group, and the second bias value may be a bias value for the first terminal.