QoS Mapping for Non-Public Network Data in Public Cellular Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in determining and managing quality of service (QoS) information for non-public network (NPN) data when transmitted through a public land mobile network (PLMN), particularly in distinguishing and treating control plane and user plane data effectively.
Innovation Solution
A wireless transmit/receive unit (WTRU) applies QoS mapping rules to encapsulate NPN data in PLMN packets, using different QoS indications for control plane and user plane data, allowing for differentiated QoS treatment during transmission, and receives QoS mapping rules from the network to ensure appropriate QoS assignment for packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If NPN data is transmitted through PLMN using unified QoS mapping, then implementation complexity is reduced, but QoS management precision deteriorates because control plane and user plane data cannot be differentiated
Solution Approach 1:
The patent segments QoS mapping into two distinct processes: one for control plane data and another for user plane data. Control plane data receives default QoS handling while user plane data undergoes detailed QoS parameter mapping, allowing differentiated treatment without requiring complete restructuring of the QoS system
Solution Approach 2:
The patent applies different QoS mapping qualities to different data types: control plane data receives simplified default QoS treatment while user plane data receives customized QoS mapping based on specific parameters. This local differentiation optimizes QoS management for each data type without imposing uniform complexity across the entire system
2Measurement precision
If differentiated QoS mapping is applied to control plane and user plane data, then QoS management precision is improved, but device complexity increases due to multiple mapping rules
Solution Approach 1:
The patent divides QoS mapping into separate segments for control plane and user plane data, each with its own mapping rules. This segmentation allows precise QoS management for each data type while containing complexity within isolated mapping procedures rather than requiring a completely complex unified system
Solution Approach 2:
The patent changes QoS parameters differently for control plane versus user plane data. Control plane data uses default QoS parameters while user plane data allows dynamic parameter adjustment based on traffic characteristics, achieving precision without requiring complex parameter management across all data types
3Ease of operation
If default QoS value is applied to all NPN packets, then ease of operation is improved, but network performance deteriorates due to lack of optimized transmission
Solution Approach 1:
The patent applies local quality differentiation where control plane packets receive default QoS treatment for simplicity while user plane packets receive optimized QoS based on their specific requirements. This ensures ease of operation for critical control functions while maintaining high performance for data transmission
Solution Approach 2:
The patent segments traffic into control plane and user plane, applying appropriate QoS strategies to each. Control plane traffic gets simplified default handling for operational ease, while user plane traffic gets performance-optimized mapping, achieving both simplicity and reliability in their respective domains
4Reliability
If customized QoS mapping rules are applied to user plane data, then network performance is improved, but ease of operation deteriorates due to complex configuration requirements
Solution Approach 1:
The patent enables parameter changes for user plane QoS mapping based on traffic characteristics and requirements. This allows optimized QoS configuration for user data while keeping control plane configuration simple, balancing performance needs with operational ease through selective parameter adjustment
Data Source
AI summary
Systems, methods, and instrumentalities are disclosed for determining corresponding quality of service (QoS) information that are utilized in a first network for different data associated with a second network. The data may include control plane data and user plane data. A wireless transmit/receive unit (WTRU) may send a request to the first network to establish a first session with the first network for transmission of the data associated with a second network. The WTRU may receive one or more QoS mapping rules. The one or more QoS mapping rules may include information for mapping a first QoS indication to a packet comprising control plane data associated with the second network and information for mapping a second QoS indication to a packet comprising user plane data associated with the second network. The WTRU may use the one or more QoS mapping rules to determine a QoS indication for a packet.