5G O-RAN (Open RAN): Architecture, Procedures And Use Cases

O-RAN（或 Open RAN）通过将无线接入网络 (RAN) 分解为其组成部分，为电信公司开辟了服务创新和敏捷性的新途径，每个组成部分都可以单独重新配置。所有第三方软件开发人员都可以免费访问 O-RAN 标准，他们可以通过构建 xApp 和 rApp 来开发新型服务并在 RAN 智能控制器 (RIC) 上进行创新。这使电信公司能够使他们的网络成为与企业和消费者应用程序更相关的资源。

可以说，开放式 RAN 的最大主张是有可能使电信公司通过用基于开放标准的完全分解的 RAN 替换供应商专有接口来避免供应商锁定。

自动化将是管理分散的云原生 RAN 功能生命周期的关键。O-RAN 可以通过以持续集成/持续交付 (CI/CD) 方式演进网络而不是通过世代投资周期来降低网络部署和运营成本。

本课程涵盖了良好而全面地学习 O-RAN 技术所需的所有重要主题。讨论了 O-RAN 联盟的相关标准来描述 O-RAN 架构和工作，以及 O-RAN 开放接口。

本课程的内容是

第 1 节：介绍 Open RAN
的 5G 网络设计目标的主要组成部分

第 2 节：向 Open RAN 的演进
传统基站架构
向现代基站的
演进
从 Virtualized RAN (vRAN) 向 Open RAN的演进
分布式 RAN 和集中式 RAN的
区别 集中式 RAN 和云 RAN
的区别 5G Open RAN 路径: 横向分解

第 3 节：RAN 拆分-逻辑视图
不同的 RAN 功能拆分
RAN 拆分选项 1
RAN 拆分选项 2
RAN 拆分选项 8
RAN 拆分选项 6
RAN 拆分逻辑视图
选项 7.2x 用于 Open RAN
增强型 CPRI (e-CPRI) 协议

第 4 节：O-RAN 架构概述
Open RAN 与 O-RAN
控制平面和用户平面之间的差异 O-RAN 中的
实体和接口解聚 O-RAN 联盟架构中引入的功能
O-RAN 节点聚合的选项
O- RAN 控制循环
O-RAN 生态系统中的主要实体

第 5 节：O-RAN 的虚拟化技术 虚拟化的
演进：物理网络功能 (PNF)
虚拟网络功能 (VNF)
作为 VNF 的单片应用程序
云原生网络功能分布式应用程序
O-Cloud 部署选项O-RAN 网络
中的 DEVOPS CI-CD
自动化以减少 CAPEX 和 OPEX

第 6 节：详细的 O-RAN 架构
服务管理和编排（SMO）
非实时 RIC（非 RT RIC）
JSON（JavaScript 对象表示法）格式示例
A1 策略格式和示例
近实时 RIC
集中式和分布式近实时 RIC

第 7 节：O-RAN 流量引导用例
O-RAN 流量引导 (TS) APP 示例 – 传统 TS 的问题
TS 使用 O-RAN
所需数据 (KPI) 收集的优势 TS
角色 Non-RT RIC 在 TS
中的角色Near RT RIC in TS
Role of E2-Node in TS
TS Example Scenario

第 8 节：5G O-RAN中
的网络切片 什么是网络
切片 5G 中的网络切片示例
单网络切片选择辅助信息 (S-NSSAI)
网络切片子网实例 (NSSI)
网络切片管理模型：CSMF、NSMF、NSSMF
网络切片模板 (NST)
开放网络自动化平台 (ONAP) 架构
基于 ONAP 的 O-RAN 网络切片架构
网络切片实例创建过程 使用基于 ONAP 的网络切片

第 9 节：其他 O-RAN 用例
用例：NSSI 资源分配优化
NSSI 资源分配优化程序
流程图：NSSI 资源分配优化
用例：基于飞行路径的动态无人机无线电资源分配
基于飞行路径的动态无人机无线电资源分配程序
流程图: 基于飞行路径的动态无人机无线电资源分配

本课程面向
希望在电信行业从事运营商的网络和系统工程师
想要了解 5G O-RAN（Open RAN）的学生和在职专业人士
任何想要学习 O-RAN 中涉及的协议和程序的
人 任何想要提升他们的技能以获得更好的工作。

Last Updated 03/2022
MP4 | Video: h264, 1280×720 | Audio: AAC, 44.1 KHz, 2 Ch
Genre: eLearning | Language: English + srt | Duration: 60 lectures (2h 23m) | Size: 906 MB

Path to O-RAN, RAN Functional Splits, Split 7.2x for O-RAN, O-RAN Virtualization, Non & Near RT RIC, Slicing in O-RAN

What you’ll learn
O-RAN (Open RAN) Concept in detail
Evolution to O-RAN (vRAN, C-RAN, D-RAN, RAN Disaggregation)
RAN Functional Split Options (specially option 7.2x)
Enhanced CPRI (e-CPRI) Protocol
O-RAN Architecture (SMO, Non RT RIC, Near RT RIC)
Virtualization on O-RAN
DEVOPS in O-RAN
ORAN Use Cases (Traffic Steering, NSSI Optimization, UAV resource allocarion)

Requirements
Basic concepts of Mobile telecommunication and 5G

Description
O-RAN (or Open RAN) opens new avenues of service innovation and agility for telcos by breaking the Radio Access Network (RAN) into its component parts, each of which can be separately reconfigured. O-RAN standards are freely accessible to all third-party software developers, who can develop new types of services and innovate on the RAN Intelligent Controller (RIC) by building xApps and rApps. This enables telcos to make their networks a much more relevant resource for both enterprise and consumer applications.

Arguably the open RAN’s biggest claim is the potential to enable telcos to avoid vendor lock-in by replacing vendor-proprietary interfaces with a fully disaggregated RAN based on open standards.

Automation will be key to managing the lifecycle of disaggregated, cloud-native RAN functions. O-RAN can bring down the network deployment and operation cost by evolving the network in a continuous integration/ continuous delivery (CI/CD) manner rather than through generational investment cycles.

This course covers all the important topics that are required to have a good and comprehensive learning of the O-RAN technology. The relevant standards of the O-RAN alliance have been discussed to describe the O-RAN architecture and working, as well as the O-RAN open interfaces.

The contents of the this course are

Section 1: Introduction
The Main components of a 5G Network
Design Goals of Open RAN

Section 2: Evolution to Open RAN
Traditional Basestation Architecture
Evolution to the Contemporary Basestation
Evolution to Virtualized RAN (vRAN)
From Virtualized RAN (vRAN) towards Open RAN
Difference Between Distributed RAN and Centralized RAN
Difference Between Centralized RAN and Cloud RAN
Path to 5G Open RAN: Horizontal Dis-aggregation

Section 3: RAN Splits-Logical View
Different RAN Functional Splits
RAN Split Option 1
RAN Split Option 2
RAN Split Option 8
RAN Split Option 6
RAN Splits Logical View
Option 7.2x for Open RAN
Enhanced CPRI (e-CPRI) Protocol

Section 4: Overview of O-RAN Architecture
Difference Between Open RAN and O-RAN
Control Plane & User Plane Dis-aggregation in O-RAN
Entities & Interfaces Introduced in O-RAN Alliance Architecture Functions
Options For Aggregation of O-RAN Nodes
O-RAN Control Loops
Major Entities in O-RAN Ecosystems

Section 5: Virtualization techniques for O-RAN
Evolution of Virtualization: Physical Network Functions (PNFs)
Virtual Network Functions (VNFs)
Monolithic Applications as VNFs
Cloud Native Network Function-Distributed Applications
O-Cloud Deployment Options
DEVOPS CI-CD in O-RAN
Network Automation to Reduce CAPEX and OPEX

Section 6: Detailed O-RAN Architecture
Service Management and Orchestration (SMO)
Non Real Time RIC (non-RT RIC)
JSON (JavaScript Object Notation) Format Example
A1 Policy Format and Examples
Near Real Time RIC
Centralized and Distributed Near-RT RIC

Section 7: O-RAN Traffic Steering Use Case
O-RAN Traffic Steering (TS) APP Example-Problem of Traditional TS
Advantages of TS using O-RAN
Required Data (KPI) collection for TS
Role of Non-RT RIC in TS
Role of Near RT RIC in TS
Role of E2-Node in TS
TS Example Scenario

Section 8: Network Slicing in 5G O-RAN
What Is A Network Slice
Example of Network Slicing in 5G
Single Network Slice Selection Assistance Information (S-NSSAI)
Network Slice Subnet Instance (NSSI)
Network Slicing Management Model: CSMF, NSMF,NSSMF
Network Slice Template (NST)
Open Network Automation Platform (ONAP) Architecture
ONAP based O-RAN Network Slicing Architecture
Network Slice Instance Creation Procedure Using ONAP based Network Slicing

Section 9: Other O-RAN Use Case
Use Case: NSSI Resource Allocation Optimization
NSSI Resource Allocation Optimization Procedure
Flow Diagram: NSSI Resource Allocation Optimization
Use Case: Flight Path Based Dynamic UAV Radio Resource Allocation
Flight Path Based Dynamic UAV Radio Resource Allocation Procedure
Flow Diagram: Flight Path Based Dynamic UAV Radio Resource Allocation

Who this course is for
Network and system engineers who want to pursue their carrier in Telecom Industry
Students and working professionals who want understanding of 5G O-RAN (Open RAN)
Anyone who want to learn protocols and procedures involved in O-RAN
Anyone who want to upgrade their skills for better job.