Tree Topology Network Overload Handling via Hierarchical Segmentation
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Solution Overview
Problem
Current communications networks face challenges in accurately and efficiently handling overloads and handovers, particularly in tree topology structures, where existing methods often result in false or deficient handling due to lack of differentiated overload causes and inefficient information distribution.
Innovation Solution
A method for handling overloads and handovers in a communications network based on tree topology, where information about overloads is selectively provided to relevant nodes, enabling precise granularity and resource-saving distribution, and handovers are managed by considering affected nodes and cells, ensuring correct autonomous handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If overload information is distributed to all nodes in the network, then all nodes can handle overloads, but network load increases and information distribution becomes inefficient
Solution Approach 1:
The patent segments the network into hierarchical levels (upper levels and lower levels) and selectively distributes overload information only to relevant nodes at appropriate levels, rather than flooding all nodes. This segmentation allows efficient information distribution while maintaining reliable overload handling at affected nodes.
Solution Approach 2:
The patent applies local quality by providing overload information with refined granularity only to nodes that are actually affected by the overload condition. Nodes at lower levels receive information about overloads at upper levels when they are connected and affected, while unaffected nodes do not receive unnecessary information, optimizing both reliability and energy efficiency.
2Ease of operation
If radio resource overload indicator is used without differentiation, then handover handling is simplified, but wrong or deficient handover decisions occur
Solution Approach 1:
The patent provides differentiated overload information to different nodes based on their specific situation and connection to the overload source. Each node receives tailored information about overloads affecting its specific context, enabling accurate handover decisions while maintaining ease of operation through automated localized handling.
Solution Approach 2:
The patent implements feedback mechanisms where nodes receive overload information from upper levels and use this information to make informed handover decisions. The feedback loop ensures that handover decisions are based on actual overload conditions rather than generic indicators, improving decision accuracy while maintaining operational simplicity.
3Measurement precision
If overload information is provided with refined granularity to relevant nodes, then handover handling becomes more accurate, but device complexity increases
Solution Approach 1:
The patent uses hierarchical segmentation to organize information distribution, where overload information is propagated through defined levels rather than requiring complex peer-to-peer communication. This segmentation maintains measurement precision while reducing device complexity by following structured information flow paths.
Solution Approach 2:
The patent introduces a hierarchical dimension to information distribution, organizing nodes into upper and lower levels with defined communication patterns. This dimensional organization simplifies the information distribution mechanism compared to flat network structures, enabling precise overload information delivery without excessive complexity.
Data Source
AI summary
The present invention refers to handling of an overload in a communications network and to handling of handovers occurring after the handling of handovers in the communications net work, wherein said communications network is based upon a tree topology providing several levels of nodes in said communications network. According to the present invention, in formation about an overload is provided through several levels of nodes in communications network, starting from the node, with regard to which said overload has occurred, and ending with nodes being located in levels arranged upside the level, in which the overload occurred, and being connected directly or indirectly with the node, with regard to which said overload has occurred. When handling a handover from a cell in a node, which is affected by the overload, the handover will be allowed only if the cell comprises at least one node, which is also affected by the overload.