GSM Architecture Explained- Global System For Mobiles Tutorial

Hello friends, here is the link to my new UDEMY Course on 5G Technologies, Architecture And Protocols and all other courses
drmoazzam.com/...
This video briefly explains all the major subsystems (architecture) of a GSM network. We differentiate between the access network (Base station subsystem) and core network (Network Subsystem). Then we detail various functional blocks of these subsystems and their working, like:
BTS (Base Station)
BSC (Base Station Controller)
TRAU (Transcoding and Rate Adaption Unit)
MSC (Mobile Switching center)
IWF (Inter Working Function)
HLR (Home Location Register)
VLR (Visitor Location Register)
AUC (Authentication Center)
EIR (Equipment Identity Register)
OMC (Operation and Maintenance Center)
We also also differentiate between International Mobile Subscriber Identity (IMSI) and International Mobile Equipment Identity (IMEI)

[@jibrankhalil662]

The video is very useful. I am a finance professional but engaged on the financial audit of telecoms. This video ia very useful to understand GSM system very well... Keep it up.

[@ericabui5961]

Many thanks doctor, i can see you have deep knowledge of the whole Mobile Core. i needed some clarification and i am satisfied

[@diazzandress]

Hi Dr. Moazzam, first of all, thanks for the way how your share your valuable information, I'm a telecommer with a M. Eng and I still find this as gold. I just wanted to make an appreciation, in 12:35 you're explaining the relation of the different Data Bases with the MSC, and makes me wonder if the OMC could be considered as a data base?
Thanks again.

[@dr.moazzamtiwana4743]

Thanks for your kind comments. Yes, OMC could be considered as a database, as the alarms and performance reports from the network can be stored in its database.

[@AkshayDhargave]

4:15 - 4:19 ME DURING EXAMS!!!

[@afjalsharifopu5058]

Ha ha ha ha

[@ahmahdy]

great explanation, but i just to add an info; i.e, the new architectures now allow the the OMCs to be connected directly to the BTSs directly.

[@rishabhbaloni4622]

U took my Viva..... IP college dcn subject

[@mohammed2noor]

I didn't find any page for you on the Facebook? I wish that you have one.. It's important for getting along with audience, spreading your knowledge perfectly.

[@RahulKumar-xr9nt]

thanks for useful video about basic knowledge of GSM Mobile network.

[@rizwanudoy8280]

Thank you Mr. Tiwana for uploading such a easily understandable video. I have two questions though.
1. GSM is a circuit switched network while UMTS, LTE involve packet switched functionalities. Does that mean that, when one subscriber is engaged in a call in GSM, the channels allocated to him is fixed during the entire time of the call process, while in 3G and 4G, the channels allocated to the user is not fixed, and voice and data can travel through different channels based on channel condition?
2. If 4G is an all IP system, does that mean it runs on Internet Protocol (IP) and every device gets an IP address?
Thanks again for the video.

[@dr.moazzamtiwana4743]

1) In GSM Voice channels are fixed if you are not doing frequency hopping.
2) In 3G you have separated entities in core network to handle Circuit switched and packet switched calls. Circuit switched call is handled in similar manner as GSM.
3) Yes, in 4G the Mobile gets the IP address everytime it makes a call, however it is a private IP address.

[@rizwanudoy8280]

Thank you Sir for replying.

[@ANALOGTecHII]

hello sir can you please share how the frequency is allocated dynamically in gsm , methods of frequency allocation apart form tdma fdma and cdma

[@veenajha6023]

Thanks a lot for such a wonderful explanation. Have you posted videos for 3g and 4g also ?? Please share the link if so.

[@rozanaalam4426]

thank u so much sir... it's very informative and easy to understand.... may ALLAH bless u...

[@vyshnavicheedella5140]

Thanks for the informative video.

[@sunnybhargava5234]

thanks a lot... lucid and impressive explanation...

[@rajasekarans9535]

Very Good Explanation Sir ... Thank You

[@mohammed2noor]

so good ,i hope you succeed doctor.

[@jameswarburton3727]

I have a question how do you bypass the pstn with connection a void phone call over the wan instead of the pstn? how do you get the phone numbers dynamic ip dress and ring the phone? like magic jack?

[@c2hk]

THANK YOU TO EXPLAIN THIS, THIS HELPS ME A LOT

[@j.6230]

Thank you so much, fantastic explanation!

[@enghazymeh9921]

it is very useful explanation , thank's dr.moazzam

[@tuntunoo8767]

thanks , more clear other than udemy

[@dr.moazzamtiwana4743]

Thanks. Have taken my Udemy courses?

[@tuntunoo8767]

@@dr.moazzamtiwana4743 yes sir . kindly accepts my request from hangsout apps

[@dr.moazzamtiwana4743]

I use linkedin frequently, you can connect there. I do not use hangout.

[@tuntunoo8767]

@@dr.moazzamtiwana4743 thanks sir

[@mtanzeelkhalid7738]

good one sir...

[@mir5127]

that was really great explanation Sir

[@deepurnair3670]

Moazzam... Awesome

[@saeedabbas9217]

nicely explained every thing.

[@aleqsama]

Hi Dr Moazzam, kindly please explain how RNC works..

[@bharatmv1931]

my doubt is about frequency usage.
if no neigboring cells should have same carrier frequency ,den the mobiles which work in the same cell will use same carrier frequency,in dat case is der interference b/w two mobiles?if NO ,Y?IF YES y?

[@dr.moazzamtiwana4743]

There is no interference in a cell. For more details refer to my video on What are frequency bands of GSM and another video on frequency reuse in GSM

[@bharatmv1931]

yeah thank u sir ,got it .

[@ArindamGhoshal_1303]

Great explanation..

[@sivakumarverrigukka7872]

tq sir your information is very valuable.

[@MrMostakahmed100]

Nice explanation

[@T_Mac__]

Really solid. Thank you.

[@kritikaverma3762]

Very nicely explained

[@marjarinkumar843]

Hello sir, can you give pdf of topic and theory.

[@RakeshPatil]

Wonderful tutorial

[@javidmd4650]

thank you sir..for valuable information

[@yanksonp802]

well explained videos

[@anarchy9176]

Thanks Bud.

[@udayrajpatel9048]

very nice sir

[@mobiluxautocare9696]

How much would it cost me to make one

[@yasirlangove6375]

Assalamualaikum sir how are you ... Can you help me I am from pakistan

[@anadeel]

Hello Whats up Guys.... Sir G why just Guys..... :)

[@forever-oh9gv]

thank you so much

[@MsKante]

Solid

[@dr.moazzamtiwana4743]

Thanks

[@khanharris6771]

Thank u Sir...

[@deerajsingh4826]

thanks sir

[@kasTech0716]

good

[@sahanharithapriya753]

Thanks

[@mathguruu4061]

really impressive (T)

[@mubasharanwar9565]

video not clear

[@kyipyaraung8961]

Thanks so much.