Base Station QoS Capability Exchange for Seamless Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems lack effective methods for monitoring and managing quality of service (QoS) in data sessions, particularly in scenarios involving handovers between base stations, leading to potential service disruptions and suboptimal resource allocation.
Innovation Solution
Implementing a device and method that allows base stations to exchange information about their QoS capabilities, including support for alternative QoS profiles and pending QoS flow establishment, enabling dynamic adjustments and queue management to ensure seamless service continuity during handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations do not exchange QoS capability information, then network simplicity is maintained, but service continuity during handover deteriorates
Solution Approach 1:
Base stations perform preliminary actions by exchanging QoS capability information during the handover preparation phase. The source base station includes QoS profile information in the handover request message sent to the target base station before the actual handover occurs. This preliminary exchange enables the target base station to prepare appropriate QoS parameters in advance, ensuring seamless service continuity without disrupting ongoing data sessions.
2Adaptability or versatility
If alternative QoS profiles are not supported, then device complexity is reduced, but QoS adaptability deteriorates
Solution Approach 1:
The system implements dynamic QoS profile selection where base stations can adaptively choose from multiple alternative QoS profiles based on real-time network conditions. The source base station determines which alternative QoS profile to include in the handover request based on current network state, and the target base station selects the appropriate profile for execution. This dynamic adaptation enables flexible QoS management without requiring complex centralized control.
3Reliability
If QoS flow establishment is not pending, then processing speed is improved, but service reliability deteriorates
Solution Approach 1:
The system performs preliminary action by establishing QoS flows in advance during handover preparation. The target base station receives QoS profile information before the handover executes and pre-configures the necessary QoS parameters and resource reservations. This allows the actual handover to proceed quickly without delays, as the QoS infrastructure is already in place, effectively reducing the perceived handover time while maintaining reliability.
Data Source
AI summary
The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transfer rate than 4th generation (4G) communication systems such as long term evolution (LTE). An operating method for a base station in a wireless communication method comprises a step for transmitting a first message to another base station, and a step for receiving a second message from the other base station, the first message comprising information indicating whether the base station supports at least one of an alternative quality of service (QoS) profile function and a QoS flow establishment queue function.