Cell Broadcast Traffic Steering for Radio Access Network Load Balancing
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Solution Overview
Problem
Mobile telecommunications carriers face increased network traffic and operational costs due to rising demand, necessitating improved network efficiency and user experience while maintaining competitive rates.
Innovation Solution
Implementing a method where base stations collect load information and generate cell broadcast messages to guide mobile devices in selecting the most suitable radio access network (RAN) based on load conditions, utilizing self-organizing network features to include information from neighboring cells and different radio frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mobile telecommunications carriers increase network capacity to meet rising traffic demand, then network efficiency and user experience improve, but operational costs increase
Solution Approach 1:
The system dynamically adjusts mobile device connections between different RANs based on real-time load conditions. Base stations continuously monitor their own load and the load of neighboring base stations, then provide this information via cell broadcast messages to enable mobile devices to dynamically select the most appropriate network, thereby optimizing network efficiency without requiring permanent capacity expansion
Solution Approach 2:
The invention changes the parameter of network selection by mobile devices from static to dynamic based on load information. Instead of devices always connecting to the same RAN or making selections based on fixed criteria, the system introduces variable load parameters that change over time, allowing the network to adapt to varying traffic conditions and optimize resource utilization
2Measurement precision
If base stations include load information from neighboring cells and different frequencies in cell broadcast messages, then traffic steering accuracy improves, but message complexity increases
Solution Approach 1:
The cell broadcast message is segmented into distinct load information fields, with separate elements for local base station load and neighboring base station load. This segmentation allows the system to provide comprehensive traffic steering information while maintaining a structured, manageable message format that can be processed efficiently by mobile devices
Solution Approach 2:
The cell broadcast message structure is designed to be universal and multi-functional, serving both as a standard cellular broadcast and as a vehicle for complex load information exchange. By encoding multiple types of load data (local and neighboring, different frequencies) within a standardized message framework, the system achieves high steering accuracy without requiring separate specialized messages for each type of information
Data Source
AI summary
Concepts and technologies are described herein for traffic steering across radio access technologies and radio frequencies utilizing cell broadcast messages. According to one aspect disclosed herein, a base station can collect load information of the base station. The base station can also generate a cell broadcast message that includes the load information. The base station can also send the cell broadcast message to a target mobile device. The target mobile device can be configured to determine, based at least in part upon the load information, which radio access network of a plurality of radio access networks to connect to.