5G Ingress Burst Timing Coordination for RAN Scheduling
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Solution Overview
Problem
Existing wireless communication systems struggle to efficiently adjust burst arrival times and periodicity of periodic traffic streams to align with Radio Access Network (RAN) scheduling, leading to suboptimal resource utilization and increased latency in 5G networks.
Innovation Solution
A mechanism is introduced to coordinate RAN scheduling by determining preferred burst arrival times and periodicity at the 5G ingress node based on burst timing information and adjustment capability, allowing for proactive and reactive adjustments to align with RAN configurations, thereby optimizing resource allocation and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If burst arrival times and periodicity are not adjusted to align with RAN scheduling, then application functionality is maintained, but resource utilization is suboptimal and latency increases
Solution Approach 1:
The system performs preliminary action by determining preferred burst arrival times and periodicity at the 5G ingress node before traffic bursts actually arrive. The SMF receives burst timing information from the RAN, calculates optimal timing parameters, and provides indications to applications in advance, allowing applications to proactively adjust their burst transmission schedules to align with RAN scheduling, thereby optimizing resource utilization and reducing latency.
Solution Approach 2:
The system implements feedback mechanisms where the RAN provides burst timing information to the SMF, which then determines preferred burst arrival times and periodicity. The SMF feeds back timing adjustment indications to applications, and can receive feedback on whether adjustments were applied. This closed-loop feedback enables continuous optimization of burst timing to align with RAN scheduling decisions.
2Loss of time
If burst timing adjustments are implemented proactively, then latency is reduced, but system complexity increases
Solution Approach 1:
The SMF acts as an intermediary between the RAN and applications. It receives burst timing information from the RAN, determines preferred burst arrival times and periodicity, and provides timing adjustment indications to applications. This intermediary approach simplifies the overall system by centralizing the complex timing calculation logic in the SMF, rather than requiring complex coordination between multiple network elements or modifying application complexity directly.
Data Source
AI summary
There is provided an apparatus, said apparatus comprising means for receiving, from a session management node, burst timing information for a 5G ingress node, receiving burst timing adjustment capability information for an application from a function associated with the application, determining at least one of preferred burst arrival times and periodicity at the 5G ingress node for at least one periodic traffic stream from the application based on the burst timing information and burst timing adjustment capability information and providing an indication of the at least one of determined preferred burst arrival times and periodicity to the function.