coRAN LABS
RAN Solutions — Distributed Unit

coRAN L2 (DU High)

O-RAN compliant Distributed Unit High with RLC and MAC Layer 2 processing

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Solution Overview

High-performance Layer 2 processing for distributed RAN architecture

coRAN L2 (DU High) delivers a fully O-RAN compliant Distributed Unit High implementation supporting Layer 2 radio protocols including RLC (Radio Link Control) and MAC (Medium Access Control). Our solution enables disaggregated RAN architectures with flexible deployment closer to the radio for reduced latency and improved performance.

O-RAN
Compliant
< 1ms
Latency
10 Gbps
Throughput
3GPP
Rel-15/16/17

RLC Processing

Advanced RLC AM, UM, and TM modes with segmentation and reassembly

MAC Scheduling

Intelligent resource allocation with QoS-aware scheduling algorithms

HARQ Protocol

Hybrid ARQ processing for improved link reliability and throughput

"Designed for high-throughput and low-latency operations, coRAN L2 supports advanced scheduling algorithms, HARQ processing, and seamless integration with both proprietary and open DU-Low implementations via the O-RAN F1 interface."

— coRAN L2 Platform

Key Features

Advanced Layer 2 capabilities for modern RAN deployments

RLC Processing

Advanced RLC AM, UM, and TM modes with segmentation and reassembly

MAC Scheduling

Intelligent resource allocation with QoS-aware scheduling algorithms

HARQ Protocol

Hybrid ARQ processing for improved link reliability and throughput

Low Latency

Optimized processing for sub-millisecond latency requirements

RLC Layer Processing

AM, UM, TM modes

HARQ Management

8 processes, adaptive retransmission

Multi-vendor Integration

F1 Interface Support

Technical Specifications

Protocol support and performance metrics

Protocol Support

Core protocol stack implementation for 5G NR Distributed Unit.

RLC — AM, UM, TM modes MAC — Dynamic scheduling, BSR, PHR HARQ — 8 processes, adaptive retransmission Standards — 3GPP Rel-15/16/17 compliant
Performance Metrics

High-performance deployment on cloud and edge infrastructure.

Latency — < 1ms processing time Throughput — Up to 10 Gbps per DU Deployment — Cloud-native, containerized Integration — Multi-vendor DU-Low support

Ready to Deploy O-RAN Compliant DU High?

Contact us to learn how coRAN L2 (DU High) can accelerate your RAN transformation