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所在平台: Udemy |
课程主页: https://www.udemy.com/course/open-ran-oran-architecture-evolution-deployment-5g/
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课程名称：开放RAN（ORAN）架构、演变与部署 - 5G 课程概述： 开放RAN（ORAN）是由电信基础设施项目（TIP）和O-RAN联盟等社区主导的标准。其目标是“加速RAN领域的创新与商业化，提供多供应商互操作的产品和解决方案，这些产品和解决方案可以轻松集成到运营商的网络中，并针对不同的部署场景进行验证”。开放RAN是一种无线接入网，允许来自任何设备供应商的硬件与其他不同供应商的软件、API、源代码和接口合作使用，推动从专有系统转向商业现货产品（COTS）及其分拆。 开放RAN将关键的RAN功能分散到不同的节点，以管理不同时点的服务与应用（实时和非实时）。开放RAN也被称为解耦的RAN，其基带功能在中心单元（CU）和分布式单元（DU）之间拆分。开放RAN主要是一种软件驱动的网络，能够实现RAN灵活性和开发速度，同时通过采用开源软件和持续演进（CI/CD），降低资本和运营费用。 虚拟化技术解耦了基础设施，并在虚拟环境中提取所需功能（如CU和DU）。编排技术用于协调虚拟网络功能的生命周期，以实现所需服务（如网络切片）。云化是开放RAN的一个重要组成部分，它通过在开放RAN中实现虚拟化，提供便利的按需访问无线接入网络中共享可配置资源的云平台。云化可应用于CU、DU和近实时RIC节点。 随着RAN的解耦和从专有系统的转变，创新通过机器学习（ML）的应用正在发生，相较于传统RAN，其引入了被称为无线智能控制器（RIC）的智能控制器，以提高效率，支持实时和非实时服务。机器学习还可以帮助优化网络中的特性和参数，提高网络的整体效率，并作为自组织网络（SON）功能的一部分。软件定义网络（SDN）有助于实现接入网络的流量工程。多接入边缘计算（MEC）则能够将网络资源和功能更近地移动到用户侧，以支持多个对往返时间和处理大量数据有严格要求的应用。强大的传输连接性是连接解耦的开放无线接入网络的前提条件。
Open RAN (ORAN) is a standard led by the Telcom Infra Project (TIP) and other communities such as O-RAN alliance community. Its aim is to "accelerate innovation and commercialization in RAN domain with multi-vendor interoperable products and solutions that are easy to integrate in the operator's network and are verified for different deployment scenarios."Open RAN is a radio access network where hardware from any equipment supplier can be used with software, API, source code, interface etc. from other different suppliers. Shift from Proprietary to COTS (Commercial off the shelf).Open RAN split key RAN functions among different nodes to manage different services and applications (real time and non-real time). Open RAN is also known as Disaggregated RAN. Baseband functionality is split between central unit (CU) and distributed unit (DU).Open RAN is broadly a Software enabled Network. Open RAN enables RAN flexibility and development velocity with simultaneous reduction in capital and operating expenses through the adoption of open-source software and continuous evolution through CI/CD. Virtualization decouples infrastructure and extracts required functions (such as CU and DU) virtually. Orchestration coordinates the lifecycle of virtual network functions to realize required service (e.g., slicing).Cloudification is an integral part of Open RAN. Cloud platform enables convenient, on demand access to shared pool of configurable resources in the radio access network through virtualization in Open RAN. Cloudification can be done for CU, DU and near real time RIC nodes.As RAN is disaggregating and moving away from proprietary system, there is an innovation happening by leveraging machine learning (ML) to enable more efficiency as compared to conventional RAN by introducing intelligent controllers known as Radio Intelligent controllers (RIC), which can work for real and non-real time services. ML can also help to optimize the features and parameters in the network to make it more efficient. It is a part of self-organizing network feature (SON).Software defined network (SDN) helps to enable traffic engineering for access networks.Multi access edge computing (MEC) helps to move network resources and functions closer to the users and enable multiple emerging applications having stringent requirement of roundtrip time and processing of huge amount of data at edge.Robust transport connectivity is prerequisite to connect disaggregated Open Radio access network.
