QoS Notification Control Parameter Transmission During Handover
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Solution Overview
Problem
In 5G mobile communication technologies, non-GBR QoS flows, which include audio and video calls, experience communication lag due to changes in radio network status during handover processes, as existing QoS notification mechanisms are not optimized for network resource shortages.
Innovation Solution
A handover process-based message transmitting method and apparatus that optimizes the QoS notification mechanism by transmitting a control parameter of QoS notification control (QNC) from a source access network device to a target access network device during handover, enabling notification messages to be sent to application entities when specific parameter changes meet reporting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS notification mechanism is implemented for non-GBR bearer flows during handover, then communication lag is reduced, but device complexity increases due to additional control parameter transmission and monitoring requirements
Solution Approach 1:
The source access network device transmits the QNC control parameter to the target access network device in advance during the handover preparation phase, before the actual handover execution. This preliminary action ensures that the target device is already configured with the necessary control parameters, enabling immediate QoS notification upon handover completion without requiring additional setup steps, thus reducing communication lag while managing system complexity.
Solution Approach 2:
The QNC control parameter acts as an intermediary element that carries QoS notification control information from the source access network device to the target access network device during handover. This intermediary parameter enables the target device to understand and implement QoS notification requirements without requiring complex direct communication protocols between multiple network entities, simplifying the overall system architecture.
2Loss of time
If QNC control parameter is transmitted during handover, then notification timing is improved, but information transmission overhead increases
Solution Approach 1:
The QNC control parameter is merged with existing handover signaling messages and transmitted along with other handover-related information from the source access network device to the target access network device. By combining multiple functions into a single transmission process, the patent avoids additional separate signaling exchanges, thereby reducing notification delay while minimizing the increase in information transmission overhead.
3Productivity
If parameter monitoring and notification are implemented after handover, then application performance is optimized, but processing load increases
Solution Approach 1:
The target access network device autonomously monitors QNC parameter changes and automatically generates notification messages to application entities when predefined reporting conditions are met. This self-service mechanism eliminates the need for continuous polling or external triggering, allowing the system to optimize application performance through timely notifications while keeping processing load manageable by acting only when necessary.
Solution Approach 2:
The system monitors for specific changes in QNC parameters and triggers notifications only when these parameter changes meet predefined reporting conditions. By focusing monitoring efforts on critical parameter changes rather than continuous monitoring of all parameters, the patent optimizes application performance through relevant notifications while reducing unnecessary processing load and energy consumption.
Data Source
AI summary
Handover process-based message transmitting methods and apparatuses for mobile communication are provided. A control parameter of quality of service (QOS) notification control (QNC) of a non-GBR bearer flow is transmitted by a source access network device to a target access network device during a handover process, so that the target access network device transmits a notification message to an application entity via a core network entity in a case that a change in a parameter value of the QNC of the non-GBR bearer flow after the handover is completed meets a reporting condition. The control parameter of the QNC indicates a parameter of the QNC of the non-GBR bearer flow and the reporting condition.