What is The Relation between eCPRI, Option 7, Option 7-2x and Split E?
April 4, 2023

The increase in data rates in 5G makes it impractical to continue with the conventional CPRI fronthaul implementation. Moving towards a higher layer split would relax the latency and bandwidth requirements, but then fewer processing functions can be centralized. It is thus critical that the new functional-split architecture takes into account technical and cost-effective trade-offs […]

What is Distributed Unit (DU) in Open RAN?
February 24, 2023

3GPP defined a new RAN architectural in Release 15, where the gNB (Site Name for 5G) is logically split into three entities denoted as: CU: Centralized Unit. DU: Distributed Unit. RRU: Remote Radio Unit. The RAN functions that correspond to each of the three entities are determined by the so-called split points. After a thorough […]

Why 5G needs moving from CPRI to eCPRI?
December 11, 2022

📗 CPRI is standardized by the Common Public Radio Interface forum with the first specification in 2003 with some features It is based on functional split 8 (Split E in eCPRI Specs.) between RF and Physical layer which means the legacy one. It covers user plane data, control plane transport mechanisms, and means for synchronization. […]

RIC Main Components: Non-RT RIC and Near-RT RIC
November 25, 2022

The RAN intelligent Controller (RIC) is cloud-native, and a central component of an open and virtualized RAN network. The RIC aligns with 3GPP release 15 and beyond. It is foundational to enabling network programmability, intelligence, and disaggregation in a modern network. It is an essential component of the Open RAN architecture. The RIC architecture includes […]

Open RAN Changes Your RAN Mindset!
October 13, 2022

The RAN has been considered the most expensive part of network deployment. RAN consists of around 60-70% of the network Capex. The Open RAN (Open Radio Access Network (RAN) Journey is about changing the mindset and accepting the fact that Open RAN is not a new technology we need to test, however, it’s the future […]

O-RAN ALLIANCE Specifications and Working Groups
July 25, 2022

The O-RAN Alliance (O-RAN) is a group that is defining specifications for radio access networks. It is a global alliance founded in 2018 and it is now comprised of close to 30 operators and more than 200 vendor companies. The O-RAN Alliance is a relatively new organization that took the 3GPP standards work as its […]

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 […]

O-RAN Fronthaul 7-2x in One Page
September 7, 2021

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 […]

RAN Intelligent Controller (RIC) Use Cases
August 29, 2021

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 […]