# WG3 Overview
###### tags: `WG3`

# Spec Near-Real-time RAN Intelligent Controller

- Architecture &E2 General Aspects and Principles
- Near-RT RIC Architecture
- E2 Application Protocol (E2AP)
- E2 Service Model (E2SM)
- E2 Service Model (E2SM), RAN Function Network Interface (NI)
- E2 Service Model (E2SM), Cell Configuration and Control
- E2 Service Model (E2SM), KPM(Key Performance Measurement)
- E2 Service Model (E2SM), RAN Control
- E2 Interface Test Specification

**Architecture &E2 General Aspects and Principles**
4. Near-RT RIC Architecture
5. E2 Interface
6. Services expected from signalling transport
7. Security for the E2 interface
8. Other E2 interface specifications

**E2 Service Model (E2SM)**
4. General
5. E2SM services
6. Common Elements for E2SM Service Models

**Near-RT RIC Architecture**
5. Near-RT RIC Architecture
6. Near-RT RIC Functions Description
7. Near-RT RIC APIs
8. External Interfaces of Near-RT RIC
9. Near-RT RIC API Procedures

**E2 Application Protocol (E2AP)**
5. E2AP Services
6. Services expected from Signalling Transport
7. Functions of E2AP
8. E2AP Procedures
9. Elements for E2AP Communication
10. Handling of Unknown, Unforeseen and Erroneous Protocol Data

**E2 Service Model (E2SM), RAN Function Network Interface (NI)**
5. E2SM services
6. RAN Function Service Model Description
7. RAN Function Description
8. Elements for E2SM Service Model
9. Handling of Unknown, Unforeseen and Erroneous Protocol Data

**E2 Service Model (E2SM), Cell Configuration and Control**
5. E2AP Services
6. RAN Function Service Model Description
7. RAN Function Description
8. RAN Configuration Structures
9. Elements for E2SM Service Model
10. Handling of Unknown, Unforeseen and Erroneous Protocol Data

**E2 Service Model (E2SM)KPM(Key Performance Measurement)**
5. E2AP Services
6. RAN Function Service Model Description
7. RAN Function Description
8. Elements for E2SM Service Model

**E2 Service Model (E2SM), RAN Control**
5. E2AP Services
6. RAN Function Service Model Description
7. RAN Function Description
8. RAN Parameter assignments
9. Elements for E2SM Service Model
10. Handling of Unknown, Unforeseen and Erroneous Protocol Data