Network Slice Priority Access via Service-Based Architecture
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Solution Overview
Problem
Current communication networks face challenges in efficiently managing and optimizing the communication protocols and network functions across diverse wireless devices and base stations, particularly in supporting multiple technologies and releases, while ensuring seamless service delivery and quality of service.
Innovation Solution
The proposed solution involves a service-based architecture within the core network, which enables flexible configuration and operation of network functions, allowing for selective implementation of protocols based on criteria such as wireless device configurations, traffic load, and packet sizes, to optimize communication between wireless devices and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single communication protocol is used across all wireless devices, then device compatibility is improved, but network performance optimization for diverse device capabilities deteriorates
Solution Approach 1:
The network protocol stack is segmented into multiple protocol options (e.g., NR-U, E-UTRA, NR) that can be selectively activated. The base station and wireless devices support multiple protocol versions and can dynamically select which protocol to use based on device capabilities, network conditions, and service requirements, thereby achieving both compatibility and performance optimization.
Solution Approach 2:
The protocol selection is made dynamic rather than static. The base station determines which protocol to use based on real-time factors including wireless device configurations, traffic load, packet sizes, and network conditions. This dynamic adaptation allows the network to optimize performance for each specific scenario while maintaining broad device compatibility.
2Adaptability or versatility
If network functions are configured to support all wireless device types, then versatility is improved, but system complexity deteriorates
Solution Approach 1:
The base station and network functions are designed with multi-functionality to support multiple communication protocols (NR-U, E-UTRA, NR) and various wireless device types within a single unified architecture. This universal design allows the same network infrastructure to serve diverse devices without requiring separate specialized systems for each device type.
Solution Approach 2:
Wireless devices self-identify their capabilities and requirements through capability indication messages. The base station automatically determines the appropriate protocol and configuration based on these indications, eliminating the need for manual configuration and reducing system complexity while maintaining support for all device types.
3Productivity
If protocol selection is based on multiple criteria (device config, traffic load, packet size), then network optimization is improved, but decision-making complexity deteriorates
Solution Approach 1:
The system implements feedback mechanisms where wireless devices provide capability indications and the base station monitors network conditions (traffic load, packet sizes). This feedback loop enables automatic protocol selection and reconfiguration based on real-time conditions, optimizing network performance without requiring complex manual decision-making processes.
Solution Approach 2:
The base station acts as an intermediary that mediates between diverse wireless device capabilities and network requirements. It receives capability indications from devices, evaluates multiple criteria (device configuration, traffic load, packet size), and automatically selects the appropriate protocol, thereby simplifying the decision-making process while achieving optimal network configuration.
Data Source
AI summary
A wireless device transmits, to a base station, a radio resource control (RRC) request message comprising an indication of priority access of the wireless device to a network slice. The wireless device receives, from the base station, based on the indication of priority access, an RRC response message indicating an acceptance associated with the RRC request message.