O-DU Accelerator Passthrough for Control Plane Message Routing
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in utilizing accelerators within open radio access network (O-RAN) distributed units (O-DUs), particularly in processing control plane messages, as accelerators are often optimized for user plane tasks and may not efficiently handle complex data structures in control plane operations.
Innovation Solution
Implementing a passthrough mechanism for control plane messages in O-DU accelerators, allowing messages to bypass the accelerator and maintain their payload unchanged, thereby optimizing resource utilization and reducing unnecessary processing demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control plane messages are processed through the O-DU accelerator, then message processing can be performed, but processing efficiency deteriorates due to unnecessary accelerator usage for messages not optimized for acceleration
Solution Approach 1:
The patent segments message handling into two distinct paths: accelerated processing for user plane messages and passthrough for control plane messages. This segmentation allows the system to apply appropriate processing methods to different message types, improving overall efficiency while reducing unnecessary accelerator usage for control plane traffic.
Solution Approach 2:
The patent extracts control plane messages from the accelerated processing path and routes them through a dedicated passthrough path. This extraction prevents control plane messages from consuming accelerator resources, thereby improving accelerator resource utilization and reducing processing delays for control plane operations.
2Ease of operation
If all messages are routed through the accelerator, then uniform processing can be achieved, but device complexity increases due to unnecessary processing steps
Solution Approach 1:
The patent implements dynamic message routing that automatically directs different message types through appropriate paths based on their characteristics. Control plane messages are routed through the passthrough path while user plane messages utilize the accelerated path, creating a flexible system that adapts to different processing requirements without manual configuration.
Solution Approach 2:
The patent introduces an intermediary routing mechanism that sits between message generation and processing. This intermediary automatically determines the appropriate processing path for each message based on its type, simplifying the overall system operation while managing the complexity of having multiple processing paths through centralized intelligence.
3Reliability
If the accelerator processes all messages, then resource utilization appears high, but actual system performance deteriorates due to mismatched processing capabilities
Solution Approach 1:
The patent applies local quality by providing different processing treatments to different message types. Control plane messages receive passthrough handling appropriate for their low-volume, high-priority nature, while user plane messages receive accelerated processing suited for their high-volume, throughput-critical characteristics. This localized optimization improves overall system reliability.
Solution Approach 2:
The patent changes the processing parameters for different message types by directing control plane messages through a passthrough path with minimal processing steps, while user plane messages undergo accelerated processing with optimized parameters for throughput. This parameter differentiation ensures each message type is processed with appropriate resources, improving system performance while reducing unnecessary accelerator load.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an open radio access network (O-RAN) distributed unit (O-DU) may generate, at an O-DU application that executes on the O-DU, a first message that does not make use of an O-DU accelerator of the O-DU that is in-line with the O-DU application. The O-DU may transmit, from the O-DU application to an O-RAN radio unit (O-RU), the first message via a passthrough of the O-DU accelerator, wherein the first message does not make use of the O-DU accelerator based at least in part on a payload of the first message being transferred unchanged by the O-DU accelerator to the O-RU. Numerous other aspects are described.