While the CU/DU split adds a lot of extra flexibility in how services are deployed, there is still an area of cost that needs to be optimized is the RU. Today, the interface between the BBU and RU in 4G… Read More ›
DU
Functional split Option 7 & ORAN Alliance Specified Split option 7.2x
In this option as shown in Fig below the lower physical layer functions and RF circuits are located in the DU(s). The upper protocol layers including the upper physical layer functions reside in the CU. There are multiple realizations of… Read More ›
Types of Functional Splits in ORAN/5G NR
Types of Splits: We have three categories of splits High Layer Splits Low Layer Splits Double Splits High Layer Split: It consist of split 2,3,4 & 5.The benefits of opting this functional splits are drastically reduced bandwidth, latency tolerant i.e… Read More ›
RU/DU/CU Architecture
Radio Unit Interface & Architecture : 5G NR radio unit shall be connected to DU through fronthaul RAN low layer split. The DU shall be connected to the CU which connects to the 5G enabled EPC to work along with… Read More ›
O-RAN:Challenges in ORAN & Function Migration of 4G to 5G RAN Architecture
Challenges in ORAN/ORAN Deployment. With the move towards Open RANs, operators and integrators need to test that all the Technology works together before it goes into the live network. Best scenario of this challenge concerns the wide range of components… Read More ›
ORAN Introduction
Introduction Before understanding the architecture of ORAN, First we need to understand the LTE architecture which consist of EPC,eNB and the RF Antenna Unit. The functions in LTE RAN are split so that the Baseband Unit (BBU) and the Remote… Read More ›
ORAN -Why,What,When?
Now question here comes in mind Why,What , When ORAN. Why ORAN: Most of the CAPEX required to build a wireless network is related to the RAN segment, reaching as high as 80% of the total network cost. Any reduction… Read More ›