Steering of Roaming for Localized Service Access Continuity
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Solution Overview
Problem
Existing wireless communication systems lack effective methods for steering user equipment (UE) roaming based on current parameters such as location, service quality, and network load, leading to inefficiencies in accessing localized services and maintaining session continuity during network transitions.
Innovation Solution
A method and device for triggering a steering of roaming (SoR) procedure by a home network to steer UE to a hosting network based on parameters like location, service quality, and network load, using additional SoR information to ensure seamless access to localized services and session continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional roaming methods are used without steering of roaming procedures, then network operations remain simple, but user equipment cannot efficiently access localized services and maintain session continuity during network transitions
Solution Approach 1:
The home network pre-configures steering of roaming information including target network identifiers and service area information before the UE needs to roam. This allows the UE to quickly switch to the appropriate hosting network when entering a service area, ensuring session continuity without complex real-time decision-making procedures.
Solution Approach 2:
The home network acts as an intermediary that provides steering of roaming information to the UE, enabling the UE to automatically select the appropriate hosting network. This intermediary mechanism simplifies the roaming process by centralizing the decision-making logic in the home network while maintaining reliability through pre-configured target network information.
2Adaptability or versatility
If steering of roaming procedures are implemented to enable access to localized services, then service quality improves, but information management complexity increases
Solution Approach 1:
The steering of roaming information includes service area information that is specific to particular geographic locations. The home network provides differentiated roaming information based on the UE's current location, enabling access to localized services only in relevant areas while maintaining standard roaming behavior elsewhere, thus improving adaptability without overwhelming information management.
Solution Approach 2:
The roaming information is segmented into distinct components including target network identifiers, service area information, and validity conditions. This segmentation allows the UE to process only relevant information for its current situation, reducing information management overhead while maintaining the ability to access localized services when conditions are met.
3Productivity
If real-time network parameters are monitored for steering decisions, then roaming optimization improves, but signaling overhead increases
Solution Approach 1:
The home network performs preliminary assessment of network conditions and pre-determines optimal target networks for steering, storing this information for UE retrieval. This approach achieves roaming optimization based on network parameters without requiring continuous real-time signaling, as the UE can use pre-configured steering information that reflects current network conditions.
Data Source
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. A method of a network entity included in a home network in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of receiving first steering of roaming (SoR)-related terminal information from a serving network to which a terminal is connected; determining, on the basis of the first SoR-related terminal information, whether to steer the terminal to a hosting network that provides a localized service; and transmitting first SoR information to the terminal through the serving network, if it is determined that the terminal will be steered to the hosting network that provides the localized service, wherein the first SoR information includes an indication that the terminal is to be switched into a localized service access mode.