Asymmetric Bearer Signaling for Wireless Resource Allocation
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Solution Overview
Problem
Existing communication networks face challenges in efficiently managing asymmetric channels and optimizing resource allocation for wireless devices with diverse capabilities and technologies, leading to suboptimal performance and network congestion.
Innovation Solution
Implementing a flexible and configurable communication architecture that supports multiple wireless device capabilities and technologies, allowing selective implementation of protocols based on specific criteria such as traffic load and device configurations, and utilizing a service-based architecture within the core network for dynamic resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a service-based architecture with multiple user plane functions is implemented, then network flexibility and adaptability are improved, but device complexity increases
Solution Approach 1:
The network is divided into multiple user plane functions (UPFs) with specialized roles: anchor UPF for session anchoring, intermediate UPF for traffic routing, and access UPF for radio access. This segmentation allows each component to perform specific functions independently, improving network flexibility while managing complexity through functional decomposition.
Solution Approach 2:
The service-based architecture implements universal network functions that can serve multiple purposes. The UPF can function as anchor, intermediate, or access UPF depending on configuration, and the N3 interface can support both trusted and untrusted access. This multi-functionality improves adaptability without requiring separate dedicated components for each function.
2Adaptability or versatility
If support for multiple wireless devices with varying capabilities is provided, then adaptability is improved, but quality of service management becomes more difficult
Solution Approach 1:
The architecture applies different QoS handling approaches at different levels: device-specific QoS parameters are managed locally by the access UPF based on device capabilities, while general QoS policies are enforced by the anchor UPF. This allows tailored QoS management for each device type without centralizing all decision-making, reducing overall management complexity.
Solution Approach 2:
The QoS management system dynamically adapts to device capabilities through capability exchange during connection establishment. The network can dynamically adjust QoS parameters, resource allocation, and routing based on real-time device information, enabling support for varying device capabilities while maintaining manageable QoS through automated adaptation rather than static complex configuration.
3Adaptability or versatility
If untrusted access and multiple network slices are supported, then network versatility is improved, but security and resource management complexity increases
Solution Approach 1:
Network resources are segmented into separate network slices, each with dedicated resources and isolation. Untrusted and trusted access are handled by separate UPF instances or logical partitions. This segmentation allows independent management of each slice's resources and security policies, reducing the complexity of managing diverse access types and slices simultaneously while maintaining high versatility.
Data Source
AI summary
A base station may receive, from a first wireless device, a first radio resource control (RRC) message indicating that a communication associated with a bearer is asymmetric. The bearer may be associated with a service that needs a symmetric communication. The base station may also send, to the first wireless device and based on the first RRC message, a second RRC message that includes radio resource configuration parameters of the first wireless device.