QoS Parameter Determination During Wireless Handover
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Solution Overview
Problem
Current wireless communications networks face inefficiencies in ensuring proper Quality of Service (QoS) configurations during handovers between different wireless communications technologies, particularly for elevated priority devices, as existing systems require resource-intensive QoS parameter determinations for every device, which is inefficient and wasteful.
Innovation Solution
The integration of a 5G session management function (SMF) and a 5G unified data management (UDM) function determines QoS parameters for elevated priority devices based on their specific 4G QoS profile information, allowing for efficient handover operations by selectively querying updated QoS parameters only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS parameters are determined for every device during handover, then proper QoS configuration is ensured, but resource utilization becomes inefficient and control signaling increases
Solution Approach 1:
The patent applies local quality by differentiating QoS parameter determination based on device priority levels. Elevated priority devices receive full QoS parameter queries and configurations, while non-elevated priority devices use default QoS settings without resource-intensive queries. This selective approach ensures reliable QoS configuration for devices that require it while improving overall network efficiency by avoiding unnecessary resource consumption for devices that do not need enhanced QoS.
2Loss of information
If QoS data queries are performed for all devices, then complete QoS information is obtained, but control signaling and resource consumption increase
Solution Approach 1:
The patent implements partial action by querying QoS data only for elevated priority devices rather than all devices. The network determines device priority levels and selectively initiates QoS data queries only when necessary (for elevated priority devices), avoiding unnecessary control signaling for non-elevated priority devices. This partial approach maintains complete QoS information for devices that require it while significantly reducing control signaling overhead and resource consumption across the network.
3Device complexity
If default QoS settings are used for all devices, then network operations are simplified, but elevated priority devices cannot receive customized service
Solution Approach 1:
The patent resolves this contradiction by implementing local quality through priority-based differentiation. The network maintains simple default QoS settings for non-elevated priority devices while providing customized QoS parameter queries and configurations for elevated priority devices. This allows the network to operate with relatively simple default configurations while still offering advanced customization capabilities to devices that require them, thus balancing operational simplicity with adaptability.
Data Source
AI summary
Systems and methods for determining QoS parameters during handover for a wireless device from one network and/or technology to another include establishing the device on a first network or technology and configuring a communications session on the first network or technology using QoS parameters. During handover, the current QoS parameters are evaluated by the recipient second network or technology to determine if updated QoS parameters are required. If so, the updated QoS parameters are acquired and a communications session is established using such parameters on the second network or technology. Otherwise, default QoS parameters and/or QoS parameters from the first network or technology are used by the second network or technology to establish a communications session for the device.