Mobile Relay Context Management for Multi-Operator Network Handover
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Solution Overview
Problem
Mobile relay systems in cellular networks face challenges in maintaining high data rates for wireless backhaul connections due to mobility, requiring efficient management of limited radio resources and supporting multiple operators, especially in environments like mass transportation vehicles.
Innovation Solution
An apparatus and method that utilize the Access Network Discovery and Selection Function to control and coordinate the activation, reactivation, and setup of connections with donor cellular networks, managing context updates and resource allocation across multiple operators to ensure seamless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If mobile relay systems are deployed in mass transportation vehicles to improve coverage and capacity, then network coverage and service capacity are improved, but maintaining high data rates for wireless backhaul connections becomes difficult due to mobility
Solution Approach 1:
The system performs preliminary actions by establishing context information and network connections before the mobile relay actually moves into service. The context is created and stored in advance, including all necessary network parameters and configuration data, so that when the relay needs to connect to a donor network, the connection can be rapidly established without interruption to service.
Solution Approach 2:
The invention introduces an intermediary mechanism in the form of context information that mediates between the mobile relay and donor networks. This context acts as a pre-prepared intermediary package containing all necessary connection parameters, allowing the relay to quickly establish connections with different donor networks as it moves, without requiring time-consuming negotiation or configuration exchanges.
2Adaptability or versatility
If mobile relays move at high speeds to serve mass transportation vehicles, then mobility and coverage are improved, but connection stability and data rate maintenance deteriorate
Solution Approach 1:
The system implements dynamics by making the context information adaptable and updateable. The context is not static but can be modified and refreshed as the mobile relay moves between different donor network coverage areas. This dynamic context management allows the system to adapt to changing network conditions while maintaining stable connections.
Solution Approach 2:
The invention applies beforehand cushioning by pre-establishing context information that acts as a buffer or cushion against connection disruptions. This pre-prepared context contains all necessary parameters to maintain connections during mobility events, cushioning the system against the instability that would otherwise result from high-speed movement between networks.
3Productivity
If donor cellular networks are shared among multiple operators to improve resource utilization, then resource efficiency is improved, but coordination complexity and resource allocation difficulty increase
Solution Approach 1:
The context information structure is designed with universality to work across multiple operators and network types. It contains generic parameters and configuration data that can be applied regardless of which operator or donor network is being used, allowing the same context framework to serve multiple functions and multiple operators without requiring operator-specific customization.
Solution Approach 2:
The system manages coordination complexity through parameter changes by dynamically adjusting context parameters based on which donor network is currently serving the mobile relay. The context can be updated with different network-specific parameters as needed, allowing flexible adaptation to different operators while maintaining a unified management approach.
Data Source
AI summary
Apparatus and method for controlling the establishment of a network connection to a mobile relay; communicating with the moving relay connected to a donor network; controlling the activation, reactivation and setup of the connection<a moving relay with donor cellular networks, the networks being controlled by more than one operator; and creating or reactivating and keeping update of the context of the mobile relay context when the mobile relay establishes a connection with a donor cellular network.