Layer 2 Measurement Across MN-SN Interfaces for Dual Connectivity
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Solution Overview
Problem
Current Layer 2 measurement methods in 5G systems do not support reliable measurement for MN-terminated SCG and SN-terminated MCG bearers due to the lack of measurement on the interface between the master and secondary nodes.
Innovation Solution
A Layer 2 measurement method and device that measure the Layer 2 measurement object of packets transmitted through the interface between the master and secondary nodes, specifically for MN-terminated SCG and SN-terminated MCG bearers, providing measurement information for packet delay, throughput, and packet loss rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current Layer 2 measurement methods are used in 5G dual connectivity systems, then measurement can be performed for standard bearers, but measurement is not supported for MN-terminated SCG bearer and SN-terminated MCG bearer
Solution Approach 1:
The patent extends the Layer 2 measurement function to cover all bearer types including MN-terminated SCG bearer and SN-terminated MCG bearer. The network side device obtains measurement information and performs measurements on packets transmitted through the interface between master node and secondary node, making the measurement system universal across all bearer types rather than limited to specific configurations.
2Reliability
If Layer 2 measurement is performed on packets transmitted through the interface between master node and secondary node, then measurement reliability is improved, but measurement complexity increases
Solution Approach 1:
The patent segments the measurement process into distinct components: obtaining measurement information, determining measurement objects (packets transmitted through MN-SN interface), performing the actual measurement, and obtaining measurement results. This segmentation allows the complex measurement task to be broken down into manageable steps that can be implemented systematically without overwhelming system complexity.
Solution Approach 2:
The patent introduces an intermediary measurement mechanism at the network side device that mediates between the master node and secondary node interface. This intermediary performs the measurement function on packets transmitted through the interface, providing a structured approach to handle the complexity of inter-node measurements while ensuring reliable measurement results.
3Adaptability or versatility
If measurement information is obtained for all bearer types including MN-terminated SCG and SN-terminated MCG bearers, then measurement coverage is improved, but information processing load increases
Solution Approach 1:
The patent performs preliminary action by obtaining measurement information and determining measurement objects before actually performing the measurements. The network side device prepares by identifying packets transmitted through the MN-SN interface as measurement objects, so that when measurements are performed, the processing is already optimized and targeted, reducing the overall information processing load while maintaining comprehensive coverage.
Data Source
AI summary
A Layer 2 measurement method and a network side device are provided. The Layer 2 measurement method is performed by the network side device and includes: obtaining measurement information required for measuring a Layer 2 measurement object; and obtaining a Layer 2 measurement result according to the measurement information. The Layer 2 measurement result includes at least a result obtained by measuring the Layer 2 measurement object of a packet transmitted through an interface between a master node and a secondary node.