What the Open RAN Main Components?
June 3, 2022

Open RAN disaggregates the RAN into main 3 components as below: 🧧 Upper Layer Split Central Unit (CU) • Logical node that includes a portion of the eNB/gNB functions as defined by split option 2 (PDCP RLC). • CU can support many O-DUs. 🧧 Lower Layer Split Distributed Unit (DU) • Logical node that includes a […]

Why RAN Must Be OPEN?
May 25, 2022

RAN (Radio Access Network) is the main telecommunication network component that is located between the core network and users’ equipment (such as a mobile phone). RAN is constituted of a Radio Unit (RU), which is the antenna visible on top of a cell tower, and a Baseband Unit (BBU), a set of devices linking the […]

How Much Cost Is Saved by RAN Virtualization?
May 16, 2022

Virtualized radio access networks (vRANs) are a way for telecommunications operators to run their baseband functions as software. One of the primary benefits of virtualizing radio access networks (RANs) is that RAN functions no longer require special proprietary hardware to run, and can instead be run on standard servers. This is achieved by applying the […]

What are C/U/M/S Fronthaul (FH) Planes in ORAN ?
May 5, 2022

O-RAN’s proposed concepts and architectures use a split-RAN concept. There are 8 known ways to functionally split the RAN, and each one proposes splitting the processing so that different parts of the protocol stack process on different hardware. The below Figure summarizes the eight options. O-RAN has specified a version of the 7-2 split. The […]

Open RAN Interoperability Between Multi-Vendor!
April 17, 2022

For the introduction of RAN functions disaggregation and open interfaces in 5G, 3GPP has in Release 15 specified a Higher Layer Split (HLS) option of the gNB, which is also known as the Option 2 NR-PDCP split option. In this option, the gNB may consist of a Central Unit (gNB-CU) and one or more gNB […]

Why Do We Need to Change the RAN Mindset?
April 6, 2022

First, We need to understand the most important question, Why do we need to change our RAN from a traditional setup to a more flexible one? The Answer is: Heavy Data Growth Each new mobile technology generation has delivered greater data rates to mobile devices, and mobile users have moved more and more of their […]

Why 7.2x split is the Best Split Option?
March 13, 2022

O-RAN’s proposed concepts and architectures use a split-RAN concept. There are eight known ways to functionally split the RAN, and each one proposes splitting the processing so that different parts of the protocol stack process on different hardware. The below figure summarizes the eight options: O-RAN proposes using option 7-2 which splits the physical layer […]

Open Interfaces by O-RAN Alliance
July 30, 2021

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 […]

What Is The Importance of RIC?
July 5, 2021

O-RAN Alliance came up with RAN Intelligent Controller (RIC) to enable AI/ML-based RRM optimization, and which is expected to be merged with the existing central Self-Organizing Network (SON) function. Traditional RAN can’t achieve the next-generation RAN activities from operational efficiency, automation of configuration and optimization activities, and customer level-specific service assurance. As next-gen RAN will […]

How does O-RAN Alliance Open Telecom Interfaces?
March 14, 2021

The O-RAN Alliance is the main driver of the OpenRAN concept, especially the efforts to standardize interfaces, in addition to the TIP. Founded in 2018 by AT&T, China Mobile, Deutsche Telekom, NTT DOCOMO, and Orange. The O-RAN Alliance’s goal is to foster the development of reference designs and standards such that current and future RANs […]

Why do MNOs struggle to shift to Open RAN?
March 7, 2021

Why do MNOs struggle to shift to Open RAN? I know many MNOs are struggling to shift their RAN strategy to OpenRAN in their 5G Roadmap due to many reasons like they can not get away from their monolithic supply chain from the big vendors. Also, there’re some interfaces that are still NOT open even if these […]