Home NodeB Direct Interface Setup via SCTP Signaling
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Solution Overview
Problem
The existing home NodeB network architecture lacks a method for establishing a direct interface between home NodeBs, leading to increased load and delay in user and control plane data transmission through the home NodeB gateway or core network, with no effective way for the home NodeB gateway or core network element to acquire necessary information for direct interface establishment.
Innovation Solution
A method is introduced to report information required for establishing a direct interface between home NodeBs using a Stream Control Transmission Protocol (SCTP) connection between a home NodeB and a home NodeB gateway or Mobile Management Entity (MME), allowing the home NodeB to report its ability and transmission layer address information for direct interface establishment via specific interfaces such as Iuh or S1 signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a direct interface is established between home NodeBs, then user plane data and control plane data transmission efficiency is improved, but the complexity of network architecture and signaling management increases
Solution Approach 1:
The patent applies preliminary action by having the source home NodeB proactively report its direct interface establishment capability and required information (such as transmission layer address) to the target home NodeB through the home NodeB gateway or MME before actual data transmission begins. This pre-establishment of capability information allows the network to prepare direct interface configuration in advance, improving data transmission efficiency when needed while managing architecture complexity through structured information exchange protocols.
2Productivity
If direct interface establishment capability information is reported by home NodeBs, then switching efficiency between home NodeBs is improved, but the signaling transmission load on the network increases
Solution Approach 1:
The patent applies the extraction principle by selectively reporting only the essential capability information (direct interface establishment capability and transmission layer address) from the source home NodeB to the target home NodeB through the home NodeB gateway or MME. This extracted information is sufficient to enable direct interface setup without transmitting complete home NodeB configuration data, thereby improving switching efficiency while minimizing the signaling transmission load on the network.
3Device complexity
If home NodeB gateway or MME acquires direct interface establishment information, then routing algorithm complexity is reduced, but the information acquisition process becomes more complex
Solution Approach 1:
The patent applies feedback by implementing a standardized information reporting mechanism where the source home NodeB actively provides its direct interface capability and required information to the target home NodeB through the home NodeB gateway or MME. This feedback mechanism allows the network elements (home NodeB gateway or MME) to automatically acquire and store the necessary routing information in a structured manner, simplifying the routing algorithm while making the information acquisition process manageable through clear protocol-defined procedures.
Data Source
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AI summary
The present invention discloses a method for reporting the information required for establishing a direct interface between home NodeBs, and the home NodeB. The method comprises: establishing a stream control transmission protocol (SCTP) connection between the home NodeB and a home NodeB gateway or a core network element mobile management entity (MME); and reporting by the home NodeB the information required for establishing the direct interface between the home NodeBs through the SCTP connection. The present invention solves the problem that the home NodeB gateway or the core network element can not acquire the information required for establishing the direct interface between the home NodeBs, and achieves the effect of reducing the signaling transmission load in the network caused when a user performs switching between the home NodeBs.