GSM architecture Training Course | What is 2G cellular network architecture

GSM architecture Training Course | What is 2G cellular network architecture



hello in this class of GSM we will be discussing about GSM architecture in the previous class we had discussed about the evolution of GSM technology now in this session of the GSM that means global system for mobile communication which is the very fast voice technology under slicking generation so we will discuss Hertz or architecture is evolved and what other entities are there in this architecture so as Jason architecture the very first entity which requires is mobile station the next part which as per the DISA desired Network our architecture overview we require a part and that one is BSS part now this basis part should be required to be attached with a part that is NSS and all the visas and NSS part has managed by a entity or our unit and that one is an MS which is also known as voices so for GSM evolution or architectural evolution we require four basic entities the very first mobile station BSS NSS and NMS called oasis now BSS stands for BIA as ms is mobile station this base is part this one is as base station subsystem this is as base station subsystem and it is as Network station subsystem this one as Network station subsystem NMS stands for network management system and OSS is operation station subsystem so a full complete or a complete GSM architecture required these four four basic entities as we require mobility at the user a so mobile station that means this mobile station is a mobile and we can move at a certain distance apart which is a main aim of wireless technology so this mobile station or the handset will be first part which is required in GSM now this mobile station can communicate with the radio part so in the radio part we have a controller and that part of a radio network that is known as base station subsystem now base station subsystem also comprises of entities we will discuss later now after that the core network that means the magnitude of the network will be NSE spot and if there are any faults or configuration related problems we require to contact NM s or OSS part that means like this we require to organize our eight work with number of entities so that my voice communication will be possible now what are the entities in different parts of the GSM architecture so very fast mobile station this one is a part and so it is DSS part so basis comprises of BTS now BDS is controlled by entity which is BSC so these are the entities which are there in my BSS part that means base station subsystem but I have BTS and BAC attached now this BDS is this trance receiver station and this BSC as base station controller so BTS and visas are the unit which are there in my basis but now we require another one the beans and this one is my n is the spot where this is his network station subsystem so in network station subsystem I have a unit and that unit is a messy that means all VOCs are controlled by mobile switching Center which is a messy now MSE has number of databases attached to it MSA has a part which is known as SMS see now databases has a tiller and we have Miele II I are and you see we have AI n other than this we have further connectivity with PSTN and MSE is attached to GMs heroes so this coming to the full form that what is a messy so this is mobile switching Center a message stands for mobile switching Center now comes HL r so this HL r is hole location register wheeler is visitor location register es stands for Equipment Identity register you see as authentication Center so you see as authentication center aisle stands for intelligent network after that we have G M SC where GM se is gateway MSE and SMS e so SMS is short message service center so if I focus on the complete NSS part it comprises of a unit and main unit is mobile switching center now with this mobile switching center I have number of registers at the data bases attached a register is a component that can store value in it so combination of register that forms my database so I have wrong location resistor visitor location register that means these are the databases those who are storing values in their equpment identity registered authentication center intelligent network and gateway emesis so these are the units which are there in NSS part now we are left with in MS part that what are the units they are in MMS or oasis party so if this is my unit which is my emesis I also call it as oasis or OMC where OMC is operation and maintenance centered now this operation and maintenance center is divided into two parts which are or CR that means operational maintenance center for radio and ONC s operation and maintenance center for switch now those who are managing the radio part will be my ONC R and NSS part is managed by OMC s and full this department or this part is known as operation and maintenance center which is used for network management or operation station subsystem units so this is a complete okay we have PSTN are also where PSTN is public switched telephone public switched telephone network so this is my PSTN so this is a complete GSM architecture now with the help of these entities we will be able to communicate with user at a distance apart now let's discuss the function of each and every unit in this architecture so I will set up various foot points so now mobile station that means my cell phone is attached to I required to attach it with VSS part so interface that means how my mobile station is connected to the BD s so this part the connection between MS at the BTS will be your interface will be air interface now with the help of this air interface which is also known as Ryu interface that means you use it to user interface you here interface we are connected to BDS now obviously with the help of antennas that are taking receiving my signals and passing those signals through the pts so neck of the base transceiver station now it's name is base Trask receiver station that means a unit that can transmit as well as receive will be my trans receiver now it is managing what it is controlling all the calls from the mobile station to the medias and BTS is forbidding these calls or units or messages to be AC your BAC is base station controller that means base is the controller who is managing all the VDS in a particular area so we have a separate controller to control all the VDS in the unique mobile station signals are received by BTS video signals or all BTS in particular area is managed by BAC base station controller now all the signals from number of BS es will be forwarded to and Messi now this MSE is mobile switching circuit switching that means to to connect a call from one end to another end and switching part is being managed by MSE or mobile switching center unit okay this is my MSE now this is the heart of the network all the switching functionalities all the authentication on the verification as well as security purposes will be there in the mobile switching part only so that means this is a secret and confidential part if I have a message which you for locating a person's so this MSC has a number of registers attached like first two histories and china so HL are as home location register home location resistor has a functionality that it stores the permanent location of the users so a home location that means here we have permanent data is permanent means like whenever we go for purchases if I require a address proof and according to my location they are locate me a particular cell so cell allocated to me will be my home my house number will not be my home the cell allocated to me will be my home and I will be registered in the network that this user equipment with this contact number will be in this location or this cell so this formula permanent location and in same activation it is storing the location in the Angela database as we have number also defined according to the HLR that under HL r1 we have these numbers so I locate it so that means permanent location or permanent databases with V by H in a home location register and that's why it's name is home location register well it gets stored value when we have next that means visit your location resisted no visitor location resisted these with changing locations like I have a hand over I usually move from one end to another from another to an address one up to so that means I keep on changing my locations so changing locations will be saved in we a lot or visitor location register that's why it's named it as visitor location because our locations keep on changing and this register will keep on saving those locations after that we have var where ei R as Equipment Identity register now in AI our database we have defined three types of Lists in ei R we have defined white list users gray list and blackest white list users or the normal users that those who are communicating gray least users are the service dinner I'd use it like I have blocked the incoming or I have blocked outgoing so services denied users will be entry list and in blacklist I have a total number of block user settings these particular numbers are devolved by the network so where didn't block the numbers where we can allow the numbers so CIA checks my list weather are never given a whitelist grey list or blacklist and accordingly I will pass through EAS after that we have a earth indication Center authentication means verification now in my sin that means my mobile station I have a subscriber identity module now in this subscriber identity more module or the same I have a key stored and the same key that is stored in the same the same key is stored in those indications at a data base now when this sim wants to communicate with the network authentication is entered matches the sim or matches the from the same if the game matches the means use it is authenticated and if ki does not match that means user is not at indicated so this is basically for identification of the mobile station of the user equipment or users that I iron matching keys in my database if default then only user can call next one database as I am there i ns intelligent network so intelligent network is during the gsm architecture which is therefore billing section that means all the bills are generated in the intelligent part according to their plans of the prepaid connections for post paid bills are generated by MSE but prepaid connections means are generated by intelligent think of all the value added services all the prepaid calls will be recording this now we have give a message now gateway MSE we have number of a message in genealogy let if we do a degree so gate BMS is used whenever we require to connect number of MCS together for example in case of international colleague we require to pass through gateway MSE and then get vmsu of India with contact with gateway MSE of Australia and then only we can communicate so that means all the messages are connected to the Gateway so that we can have international calling also possible now after this we have SMAC where SMS stands for short message service centre my phone has short message service center number defined that means the address of this particular SMS e now this works on store and forward as it basically it is with short messages that means my sms's so store and forward every message will be stored first in its databases then it is forward and after that it will give me a delivery report of the SMS so that means this is a functionality of floor necessary center if I am calling adequate to pass through this and if I am doing sms's then I require to pass through short message service center numbers now these are the main databases in NSS pad now move to the NFS part which is operation and maintain a sentence now operation and maintenance Center has a functionality of alarm monitoring configuration management performance management that means it requires to find out all the alarms in the netbook divider configurations and the performances of the sides so we have divided this unit into to ONC our operational Indian Center for radio and MGS operation emitting a set of a switch I have a radio part so it will manage all the alarms related to this unit which manages my radio part o MC r that means my BTA spot and all the switching part that means MSE I BAC will be controlled by ONC s corporation and maintenance center for switch now why we have shown the negativity with the PSTN Network rack MSE connectivity with the PSTN because PSTN is public switched telephone network or I can say that these are all landlines connectivity so we require to company it with DRA line phone also from mobile station we require two possible call from mobile station to landlines and call from landlines to mobile station so we require to connect my MSC with the PSTN network or the landline connectivity or landline network that's why we have connected my MSC in the PSTN network so that call will be possible now if this mobile station wants to connect this mobile station and also it require to pass through and messy because all database or all information is sharing a messy part so this is a brief introduction of Jai Simha architecture we will continue in our next class thank you so much


42 thoughts on “GSM architecture Training Course | What is 2G cellular network architecture

  1. Please share a PDF in this lecture,N all lecture PDF are required for me.
    My What's no 9002980133
    We r waiting for yours reply…..(NOKIA)

  2. I've been digging explanations and lectures about this for a while now. I can tell this has been the best explanation I've seen so far. Many thanks to Telcoma, and to the wise lady that provides it.

  3. Well done sister keep it up!!!
    PSTN=Public Switched Telephone Network it has been forgotten(NSS: MSC)

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