Transport Network Load Detection for Admission Control
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Solution Overview
Problem
Current mobile telecommunication systems lack a detailed mechanism for reporting uplink and downlink transport network load, leading to insufficient congestion status reporting and inefficient admission control, particularly due to the assumption that transport network resources are not limiting factors, despite increased bit rates and radio interface bottlenecks.
Innovation Solution
A method for detecting and reporting transport network load on interfaces like S1-U, X2-U, Iub, and Iur by configuring measurement parameters and reporting conditions in radio network nodes, allowing for accurate measurement and reporting of packet loss rates to optimize resource allocation and admission control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If transport network load is not monitored in detail, then device complexity is reduced, but admission control accuracy deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where transport network nodes periodically report their load status (available resources, packet loss rate, delay) to radio network nodes. This feedback loop enables the radio network node to make informed admission control decisions based on real-time transport network conditions, resolving the contradiction between simplified monitoring and accurate control.
Solution Approach 2:
The patent introduces an intermediary reporting mechanism where transport network nodes act as intermediaries to provide load information to radio network nodes. This intermediary layer enables accurate admission control without requiring complex direct monitoring at the radio network node, as the transport network node summarizes its status and reports it back.
2Productivity
If radio interface bit rate is increased to meet demand, then service quality improves, but transport network resource exhaustion increases
Solution Approach 1:
The patent applies preliminary action by having transport network nodes report their available resources and congestion status before admission control decisions are made. This advance information allows the radio network node to preemptively adjust admission decisions to prevent transport network exhaustion, rather than reacting after resources are depleted.
Solution Approach 2:
The patent establishes a feedback mechanism where transport network load information (packet loss rate, delay, available resources) is continuously reported back to the radio network node. This feedback enables dynamic adjustment of admission control to match radio interface capacity with transport network availability, preventing resource exhaustion while maintaining high bit rates.
3Measurement precision
If detailed transport network load reporting is implemented, then admission control accuracy improves, but information loss increases
Solution Approach 1:
The patent extracts only the essential information needed for admission control from the complex transport network state. Instead of reporting all possible parameters, the system selectively reports key metrics (available resources, packet loss rate, delay) that are sufficient for making admission decisions, thereby reducing information overhead while maintaining accuracy.
Solution Approach 2:
The patent changes the parameters reported from raw transport network data to normalized, admission-control-relevant metrics. By transforming the reported information into meaningful parameters like packet loss rate and available resources, the system reduces the amount of data needed while maintaining the precision required for accurate admission control.
Data Source
AI summary
The present invention relates to resource management in a telecommunication system. In particular the invention relates to detection and estimation of transport network load and optimization of transport network resources. According to the method and arrangement of the invention a serving node engaged in admission control identifies a transport network interface from which transport load measurements are required for the admission control, and a target radio network node related to the identified transport network interface. The serving radio network node configure the target radio network node to perform and report measurements on the transport network interface.