O-RAN Fronthaul Traffic Timing Control for Peak Throughput Reduction

The patent introduces dynamic delay management by allowing flexible timing for non-delay managed traffic types. The O-DU can dynamically classify C-plane and U-plane traffic as either delay managed or non-delay managed, enabling adaptive timing adjustments that reduce peak fronthaul throughput while maintaining beamforming accuracy through optimized resource allocation and reduced channel aging effects.

The patent applies different timing control qualities to different traffic types. C-plane control messages can be marked as non-delay managed to allow flexible timing and reduce channel aging, while U-plane data traffic maintains appropriate timing control. This local differentiation optimizes uplink performance by reducing channel aging for control plane operations without compromising overall synchronization reliability.

The patent segments the RAN into distributed units (O-DU) and centralized units with clear functional separation. The O-DU handles real-time fronthaul traffic management and traffic type classification, while centralized controllers manage overall system coordination. This segmentation enables independent optimization and upgrading of different RAN components, improving scalability and adaptability while maintaining operational simplicity through standardized interfaces.