3G UMTS Architecture (1/2)-UMTS Terrestrial Radio Access Network

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UTRAN (short for "Universal Terrestrial Radio Access Network") is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the Internet. It contains the base stations, which are called Node B's and Radio Network Controllers (RNCs)[1] which make up the UMTS radio access network.[2] This communications network, commonly referred to as 3G (for 3rd Generation Wireless Mobile Communication Technology), can carry many traffic types from real-time Circuit Switched to IP based Packet Switched. The UTRAN allows connectivity between the UE (user equipment) and the core network.
The RNC provides control functionalities for one or more Node Bs. A Node B and an RNC can be the same device, although typical implementations have a separate RNC located in a central office serving multiple Node Bs. Despite the fact that they do not have to be physically separated, there is a logical interface between them known as the Iub. The RNC and its corresponding Node Bs are called the Radio Network Subsystem (RNS). There can be more than one RNS present in a UTRAN.

[@Panabo4now]

Perfect system to insert a imsi catcher

[@fatimasheraz8235]

How the power is being increased or decreased by the Node B and RNC

[@mirassugurbayev6376]

How and based on what parameters RNC identifies UE that needs to change cell id or node b? Measurment reports does not bear imsi, ptimsi and timsi.

[@russelm5107]

Thanks a lot sir, really good and concise explanations.

[@catherinescarlet3176]

Hi. this video is very good, but can you put subtitules??? please... well, I from Chile and I speak spanish and it's more easy for me if this video has subtitules in English or Spanish... thx, bye

[@panakjasahu3788]

where is the part 2 of this video

[@arkcreative7629]

Very helpul video ,nice explained

[@محمدمنظورالحقرتل]

May Allah bless you

[@saif3902]

Thank you,
These videos are helpful.

[@irvihoxha4236]

Selam alejkum, thank you for your videos, very good explanation!

[@doragabiciausu8559]

what means spread and modulate/demodulate

[@chinedumabel5103]

Lovely training sir. Please how may I connect to you via email