Recent Posts - page 2
-
LTE Handover Concept
Types of Handover in LTE Categorization of Handover (EPC Entities are Changed or not) in three kinds Intra-LTE Handover Inter-LTE Handover Inter-RAT Categorization of Handover (EPC Entities are Involved or not) in two types X2 Handover S1 Handover Basic Concept… 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 ›
-
5G-NR SRB (Signaling Radio Bearers)
5G-NR SRB (Signaling Radio Bearers) SRB (Signaling Radio Bearer) For carrying signaling message the type of bearer that required is known as SRB (Signaling Radio Bearer). The SRBs are radio bearers that are used for the transmission of RRC and… Read More ›
-
5G-NR Radio Network Temporary Identifier (RNTI)
UE and Network Identifiers NR UE uses temporary identifiers to communicate gNB. RNTI is 16-bit identifier and its value depends on type of RNTI. Many RNTI of LTE and NR are same. Below are the identifiers as per 38.321 for… Read More ›
-
LTE Synchronization Signals (PSS and SSS)
Initial Acquisition In frequency Acquisition we will get Band Information (Supported Band Info) EARFCN Information (Defined EARFCN) PLMN Information Need to know PLMN and EARFCN information will be provided by SIM. Band Information will be provided by Phone (system file)…. Read More ›
-
SS Block in 5G-NR
References: 1) 5G NR The Next Generation Wireless access Technology by ERIK DAHLMAN, STEFAN PARKVALL, JOHAN SKOLD. 2) 3GPP TS 38.211 version 15.2.0 Release 15 ,5G; NR; Physical channels and modulation. To enable devices to find a cell when entering… Read More ›
-
High Level Architecture of ORAN
As per WG1 ORAN alliance spec, figure shown below, the radio side includes Near-RT RIC, O-CU-CP, 17 O-CU-UP, O-DU, and O-RU functions. The E2 interface connects O-eNB to Near-RT RIC. O-eNB does support O-DU and O-RU functions with an Open… Read More ›
-
Objective of Virtualization in Telco Cloud
What is virtualization: Virtualization 1st apply to the given server, traditionally each server is loaded with single O.S & it host of given 1 set of Application presented below like Application & Operating system. Virtualization introduces as a abstraction layer… Read More ›
-
RACH in LTE (Random Access Procedure in LTE)
Why and when RACH? Why RACH? To Achieve Uplink synchronization between UE and eNB. To Obtain the resource for RRC Connection Request (Message 3). The next question comes in mind is “ When RACH “ ? The answer is during… 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 ›
Featured Categories
LTE,5G,TELECOMMUNICATION ›
-
LTE Q & A (21/10/2020)
October 21, 2020
-
5G-NR Q&A (20/10/2020)
October 20, 2020
-
Functional split Option 7 & ORAN Alliance Specified Split option 7.2x
October 17, 2020