coRAN LABS

coRAN L3 (Central Unit)

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

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.

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.

Key Capabilities
  • PDCP Layer Processing
  • SDAP QoS Management
  • RRC Connection Control
  • F1 Interface Support
  • Multi-vendor DU Integration

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

Technical Specifications

Protocol Support

PDCP 3GPP Rel-15/16/17 compliant
SDAP QoS flow to DRB mapping
RRC Full state machine support
Security NEA/NIA algorithms

Deployment Options

Platform Kubernetes, bare metal
Architecture Cloud-native microservices
Scalability Horizontal pod autoscaling
Integration Multi-vendor DU support

Ready to Deploy O-RAN Compliant CU?

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

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