coRAN LABS
RAN Solutions — Central Unit

coRAN L3 (Central Unit)

O-RAN compliant Layer 3 processing with advanced PDCP, SDAP, and RRC protocols

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Solution Overview

High-performance Central Unit for 5G/6G RAN architecture

coRAN L3 (CU) delivers a fully O-RAN compliant Central Unit implementation supporting Layer 3 radio protocols including PDCP (Packet Data Convergence Protocol), SDAP (Service Data Adaptation Protocol), and RRC (Radio Resource Control). Our solution enables disaggregated RAN architectures with flexible deployment options for both 5G NR and future 6G networks.

O-RAN
Compliant
3GPP
Rel-15/16/17
Cloud
Native
Multi
Vendor DU

PDCP Processing

Header compression, integrity protection, and ciphering for user and control plane data

QoS Enforcement

SDAP-based QoS flow management with 5QI mapping and traffic prioritization

RRC Management

Complete RRC state machine, mobility management, and connection establishment

"Built for cloud-native environments, coRAN L3 supports containerized deployments on standard COTS hardware, enabling operators to reduce costs while maintaining high performance and scalability."

— coRAN L3 Platform

Key Features

Advanced Layer 3 capabilities for modern RAN deployments

PDCP Processing

Header compression, integrity protection, and ciphering for user and control plane data

RRC Management

Complete RRC state machine, mobility management, and connection establishment

QoS Enforcement

SDAP-based QoS flow management with 5QI mapping and traffic prioritization

F1 Interface

Standards-compliant F1-C and F1-U interfaces for CU-DU communication

PDCP Layer Processing

3GPP Rel-15/16/17 compliant

SDAP QoS Management

QoS flow to DRB mapping

Multi-vendor DU Integration

F1 Interface Support

Technical Specifications

Protocol support and deployment options

Protocol Support

Core protocol stack implementation for 5G NR Central Unit.

PDCP — 3GPP Rel-15/16/17 SDAP — QoS flow to DRB RRC — Full state machine Security — NEA/NIA
Deployment Options

Flexible deployment on cloud and bare metal infrastructure.

Kubernetes, bare metal Cloud-native microservices Horizontal pod autoscaling Multi-vendor DU support

Ready to Deploy O-RAN Compliant CU?

Contact us to learn how coRAN L3 (CU) can accelerate your RAN transformation