L1/L2 Mobility Configuration Segmentation for Signaling Reduction
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring L1/L2 mobility, leading to increased signaling overhead and complexity in managing cell-specific configurations during handover procedures.
Innovation Solution
The proposed solution involves an apparatus and method where a user equipment (UE) receives a reconfiguration message from a network node, which includes a base configuration common to multiple cells and cell-specific configurations. The UE applies these configurations to execute a mobility procedure, enabling efficient handover between cells by storing and managing the configurations effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cell-specific configurations are used for L1/L2 mobility, then mobility procedure can be executed, but signaling overhead increases and configuration management becomes complex
Solution Approach 1:
The configuration is segmented into a common base configuration applicable to multiple cells and cell-specific configurations for individual cells. This segmentation allows the UE to receive and store the base configuration once, then selectively apply only the relevant cell-specific parameters during mobility, reducing overall signaling overhead and simplifying configuration management while maintaining reliable mobility execution.
Solution Approach 2:
The base configuration serves multiple functions by being common to multiple cells. Instead of transmitting separate full configurations for each cell, the system transmits a single base configuration that can be reused across different cells, with only the cell-specific parameters needing to be transmitted separately. This multi-functionality approach significantly reduces signaling overhead.
2Reliability
If traditional cell-specific configurations are used for L1/L2 mobility, then mobility procedure can be executed, but signaling overhead increases
Solution Approach 1:
By segmenting configurations into base and cell-specific parts, the system transmits only the necessary cell-specific parameters in addition to the reusable base configuration, reducing the total amount of signaling information required while ensuring complete and accurate configuration delivery for mobility execution.
Solution Approach 2:
The base configuration is designed to serve multiple cells universally, eliminating redundant information transmission. This multi-functionality approach reduces signaling overhead by avoiding repeated transmission of common configuration parameters across different cells.
3Ease of manufacture
If full cell configurations are transmitted for each cell, then complete configuration is provided, but configuration management becomes simpler only if base configuration is reused
Solution Approach 1:
The base configuration is designed as a universal template that can be applied to multiple cells. This approach reduces the quantity of configuration data that needs to be transmitted and managed, as the same base configuration serves multiple cells with only cell-specific parameters needing to be added, thereby simplifying configuration management.
Solution Approach 2:
Segmenting the configuration into base and cell-specific components allows for more efficient data management. The base configuration is stored once and reused, while only the variable cell-specific parameters are transmitted for each cell, reducing the total data quantity and simplifying management operations.
Data Source
AI summary
Techniques for performing efficient L1/L2 mobility are provided. For example, a method in a user equipment (UE) connected to a serving cell, is provided. The method comprises receiving, from a first network node, a first reconfiguration message including a first base configuration common to a plurality of first cells served by the first network node and a plurality of first cell-specific configurations each related to one of the plurality of first cells to enable execution of a mobility procedure; and applying, upon execution of the mobility procedure, at least a cell-specific configuration for a first target cell from among the plurality of first cell-specific configurations to connect the UE to the first target cell.