It is important to distinguish between vRAN and Open RAN Virtualization is a journey that the telecoms industry has been on for several years to transform network functions into virtual network functions (VNFs). The VNF software is then decoupled from the purpose-built hardware and run on standardized, common off-the-shelf (COTS) hardware. The interfaces between each […]

If you are in the Mobile Telecom domain especially Testing, Research, deployment domains, you have to be familiar with How to make deep research in the 3GPP website for the keywords you need to search for. First, you have to know the Specification Numbering you need to search in, you can find all of them […]

In Split 7.2x: Low PHY/High PHY split, The Low PHY/High PHY split is the most acceptable approach for it is less complex and it supports various fronthaul requirements and most importantly it has high virtualization benefits. Split 7.2x is the O-RAN Alliance fronthaul specification between O-DU to O-RU. It has two variants: 7.2a and 7.2b based […]

vRAN is a new architecture enhancing the flexibility of Centralized RAN (C-RAN) by virtualizing the functions of basebands in a common resource pool made up of the Commercial Off-the-Shelf (COTS) servers located in a centralized Hub, allocating resources in a flexible manner according to traffic conditions. vRAN = Virtual Radio Access Network Why vRAN? Maintaining […]

O-RAN Alliance has committed to evolving Radio Access Networks (RAN) around the world. Future RANs will be built on a foundation of virtualized network elements, white-box hardware, and standardized interfaces that fully embrace O-RAN’s core principles of intelligence and openness. An ecosystem of innovative new products is already emerging that will form the underpinnings of […]

There are several industry-led open RAN initiatives that seek to unite an ecosystem of supply chain partners and advance open RAN through the definition, development, and testing of standards and reference architectures. Beyond the standards defined by the 3rd Generation Partnership Project (3GPP), multiple industry groups are leading the open RAN movement, each with a […]

There are different acronyms related to the evolution of RAN (Radio Access Network), like vRAN, open RAN, O-RAN, etc.  A key point to clarify is that RAN evolution means both the disaggregation of mobile network base stations into more standardized entities (this is widely known as functional split), as well as the introduction of cloud […]

Open RAN is a highly disruptive technology that will bring many benefits to Mobile Network Operators (MNOs), especially during the evolution to 5G. By opening up the RAN to multiple vendors and virtualizing the software, costs will be significantly reduced, highly dynamic services will be enabled, and the RAN domain will experience far greater levels […]

The O-RAN ALLIANCE e.V. specifies profiles for 3GPP RAN interfaces to achieve interoperability among different vendors. So far, profiles for open X2, open Xn, and open F1 interfaces have been published. Open X2 enables operators providing 5G Non-StandAlone to introduce 5G NR base stations (gNBs) independently of the vendor providing 4G LTE base stations (eNBs). Open Xn […]

The core network is the most important domain in the mobile network starting from 2G and 3G while the MSC and SGSN are the main functions there to EPC or Evolved packet Core, then EPC+ in 4G network and finally 5GC or 5G Core in 5G Network. However, there are many differences between EPC, EPC+, […]

5G Timeline and Standardization  During preparation, it was decided to split Phase 1 into two parts. In December 2017, standardization of the non-autonomous, or Non-Standalone, architecture for 5G New Radio (NR) was completed. This first official set of 5G standards defines the wireless air interface for interworking with existing LTE-based networks. This has allowed operators […]