User Plane Function Ordering for QoS-Adaptive Wireless Links
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Solution Overview
Problem
Existing cellular communication networks lack flexibility in configuring user plane functions according to service or deployment requirements, leading to suboptimal performance in 4G and 5G systems.
Innovation Solution
Configuring user plane functions based on characteristics of the cellular system, network node capabilities, and wireless device capabilities, using control plane messages to dynamically adjust the processing order of protocols such as SDAP, PDCP, and RLC layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user plane functions are configured with fixed processing order in existing cellular networks, then network simplicity is maintained, but flexibility to meet diverse service requirements (eMBB, IoT, URLLC) is lost
Solution Approach 1:
The patent implements dynamic configuration of user plane function processing orders through control plane messages. The network can dynamically adjust the processing order of user plane functions (such as PDCP, RLC, MAC layer functions) based on service type, deployment type, connection mode, and device capabilities. This allows the system to adapt to different service requirements (eMBB, IoT, URLLC) without fixed rigid configurations.
Solution Approach 2:
The patent changes the processing order parameter of user plane functions based on multiple factors including service type, deployment type, connection mode, network node capabilities, and wireless device capabilities. By varying this parameter dynamically, the system achieves versatility for different service scenarios while maintaining manageable complexity through standardized configuration mechanisms.
2Reliability
If user plane functions are dynamically configured based on multiple parameters, then service quality is optimized, but signaling overhead increases
Solution Approach 1:
The control plane message structure is designed to serve multiple functions: it conveys processing order configuration, indicates service type requirements, specifies deployment type, and adapts to different connection modes. This multi-functionality reduces the need for separate signaling messages for each parameter, thereby optimizing QoS while controlling signaling overhead through a unified configuration approach.
3Productivity
If fixed user plane configuration is used, then device complexity is reduced, but performance optimization for different service types (IoT vs eMBB) cannot be achieved
Solution Approach 1:
The patent performs preliminary configuration of user plane function processing orders through control plane messages before data transmission begins. The network node determines the appropriate processing order based on service type, deployment type, and device capabilities in advance, and configures this through signaling. This preliminary action enables performance optimization for different service types (high throughput for eMBB, low latency for URLLC, low power for IoT) without requiring complex real-time adjustments during data transmission.
Data Source
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AI summary
Methods, systems, and devices for configuring user plane functions in mobile communication technology are described. An exemplary method for wireless communication includes determining, at a network node, a processing order for processing a plurality of user plane functions based on at least one of a type of service, a deployment type, a connection mode, one or more capabilities of the network node, or one or more capabilities of a wireless device, and transmitting, to the wireless device, a first control plane message comprising the processing order. Another exemplary method for wireless communication includes receiving, from a network node, a first control plane message comprising information that includes a processing order for processing a plurality of user plane functions, and processing, at the wireless device, a plurality of user plane functions based on the processing order.