CoMP Handover Optimization via Preferred Mp Selection
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Solution Overview
Problem
Current 3GPP mobile communications systems lack specific handover policies for CoMP scenarios, leading to unsatisfactory communication effects and decreased system throughput when using A3 event-based handover methods in CoMP handover scenarios.
Innovation Solution
A handover method that selects a preferred Mp value from multiple nodes based on predefined requirements to optimize handover judgment in CoMP scenarios, using the preferred Mp as a judgment parameter for preset handover conditions, such as the enhanced A3 event, to trigger handovers effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If A3 event-based handover method is used in CoMP scenarios, then handover procedure can be executed, but system throughput decreases substantially
Solution Approach 1:
The patent changes the handover judgment parameter from randomly selecting a node's measurement value to selecting the maximum measurement value among multiple nodes in the target cell. This parameter change ensures that the handover decision is based on the best available signal quality, thereby improving system throughput and communication effectiveness in CoMP scenarios.
Solution Approach 2:
The UE autonomously determines the maximum measurement value among multiple nodes in the target cell and uses it for handover judgment without requiring additional network coordination. This self-service approach enables the UE to make optimal handover decisions based on available measurement information, improving throughput while maintaining reliable communication.
2Ease of operation
If random node selection is used for measurement in macro neighboring cell, then handover judgment can be performed, but communication effect becomes unsatisfactory
Solution Approach 1:
The patent changes the selection criterion from random node selection to selecting the node with the maximum measurement value. This ensures that handover judgment is based on the most favorable signal condition among available nodes, improving communication reliability while maintaining operational simplicity.
3Device complexity
If existing handover policy is applied without CoMP-specific optimization, then system can operate with simple procedure, but throughput decreases after handover
Solution Approach 1:
The patent modifies the handover judgment parameter selection to choose the maximum measurement value among multiple CoMP nodes, which improves throughput without significantly increasing procedural complexity. The UE simply needs to compare measurement values and select the maximum, which is a straightforward extension of existing handover procedures.
Data Source
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AI summary
Embodiments of the present invention disclose a handover method and a related user equipment and system, which are used for handover judgment in a CoMP handover scenario. The method according to an embodiment of the present invention includes: obtaining a first reference signal parameter Mn of a target node in a macro neighboring cell and second reference signal parameters Mp corresponding to multiple nodes in a macro serving cell, where the macro serving cell is a cell serving a user equipment UE and the macro neighboring cell is a cell adjacent to the macro serving cell; selecting a preferred Mp that meets a predefined requirement from the Mps corresponding to the multiple nodes; and triggering a handover procedure if the preferred Mp and the Mn meet a preset handover condition. By implementing the solutions in the present invention, throughput of a communications system after a UE handover can be increased.