All posts by Azar

Centralized Unit – Distributed Unit (CU-DU) Split Base Station | 5G Systems Base Station Architecture

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​There are different base station architecture types specified in 5G Systems (5GS).Standalone Base StationNon-Standalone Base StationCU-DU Split Base Station​In this post, we will talk about Centralized Unit (CU) – Distributed Unit (DU) Split Base station architecture. ​Centralized Unit (CU) and Distributed  Unit (DU) Split Base Station Architecture ​General Structure ​​The general structure of CU-DU split architecture is […]

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3 Types of User Plane Bearer for EN-DC Base Station in 5G

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​Today we are going to discuss about the 3 types of User Plane Bearers supported by EN-DC Base Station.  In case you are not aware of EN-DC Base Station.  EN-DC refers to New Radio Dual Connectivity (EN-DC), where E-UTRA refers to 4G air-interface and New Radio refers to the 5G air-interface. EN-DC also means that E-UTRA […]

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Which UEs Support E-UTRA and New Radio Dual Connectivity in UEs which support

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​The base station architecture deployment options in case of Non-standalone deployment are depicted in Figures 1, 2 and 3 below. Option 3, Option 3a and Option 3x. ​Figure 1: Non-Standalone Base Station Architectures using the 4G Core Network Option 3​Figure 2: Non-Standalone Base Station Architectures using the 4G Core Network Option 3a​Figure 3: Non-Standalone Base Station […]

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Non-Standalone Base Station | Base Station Architecture | 5G System

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​Among the list of Base Station Architectures in 5G System. There are various architectures​Standalone Base StationNon-Standalone Base StationCentralized Unit (CU)-Distributed Unit(DU) Split Base StationControl Plane (CP)-User Plane (UP) Separation ​In this post, we are going to discuss only Non-Standalone Base Station. Non-Standalone Base Station has three optionsOption 3Option 3aOption 3xOption 4Option 4aOption 7Option 7a General ArchitectureNon-Standalone (NSA) […]

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Network Function | Session Management Function (SMF) in 5G Core Network | 5G System (5GS)

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​This blog post includes the details related to Network Functions as shown in System Service Based Architecture.  For your convenience, the picture of 5G  System Service Based Architecture is described below once again.​The session management function (SMF) is part of control plane function within 5G Core Network.  The  main responsibilities of SMF are as followsPDU […]

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