Guaranteed Traffic Bandwidth for Intermediate Proxy Nodes
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Solution Overview
Problem
In 5G telecommunications networks, intermediate proxy nodes such as service communications proxies (SCP) and security edge protection proxies (SEPP) lack mechanisms for guaranteed traffic bandwidth, leading to congestion and potential service starvation for low-priority services, as they cannot register as 5G network functions and lack defined overload handling guidelines.
Innovation Solution
Implementing a Guaranteed Traffic Bandwidth for Services (GTBS) mechanism at intermediate proxy nodes, which allocates reserved capacity to specific services during overload conditions, ensuring that messages for configured services with lower priority are not completely denied, even during congestion, by using per-service buckets to manage and prioritize traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If intermediate proxy nodes route all traffic without bandwidth guarantees, then traffic forwarding capacity is maximized, but service reliability deteriorates due to congestion and service starvation
Solution Approach 1:
The patent segments the traffic bandwidth into service-specific guaranteed bandwidth portions and remaining available bandwidth. Each service is allocated a guaranteed bandwidth portion that is reserved exclusively for that service, while the remaining bandwidth is shared among all services. This segmentation ensures that critical services maintain reliable operation even during congestion, while maximizing overall traffic forwarding capacity.
2Reliability
If guaranteed bandwidth is allocated to all services, then service reliability is improved, but device complexity increases due to bandwidth management overhead
Solution Approach 1:
The patent implements a universal bandwidth management mechanism that handles multiple services through a common framework. The intermediate proxy node maintains a bandwidth allocation table that applies to all services, using standardized parameters such as service identifiers, guaranteed bandwidth values, and priority levels. This universal approach ensures service reliability across different service types while minimizing the complexity of bandwidth management through consistent handling procedures.
Data Source
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AI summary
A method for providing guaranteed minimum intermediate proxy node bandwidth for services includes configuring, at an intermediate proxy node, a guaranteed minimum bandwidth of the intermediate proxy node reserved to process messages associated with a service. The method further includes receiving a first message at the intermediate proxy node. The method further includes determining, by the intermediate proxy node, that the intermediate proxy node is in an overloaded state. The method further includes identifying, by the intermediate proxy node, the first message as being associated with the service for which the guaranteed minimum bandwidth is configured. The method further includes determining, by the intermediate proxy node, that a portion of the guaranteed minimum bandwidth for the service is available to process the first message. The method further includes routing, by the intermediate proxy node and to a producer network function (NF) that provides the service, the first message and updating a message count for the service.