UMTS stands for Universal Mobile Telecommunication Systems. It is one step ahead from the GSM.
You may know it as 3G (3rd Generation) in telecommunication.
UMTS basically is a packet switched technology where GSM is circuit switched technology. Now, you may have questions like "What do you even mean by packet switched and circuit switched.?"
Circuit switched technology means, whenever you want to connect to some node on the network, the core network will identify a route from you to the requested node and make a dedicated line for the communication. All the resources in between this route will be reserved for you so that you can communicate properly. Now, when you no longer require the connection and close it down, the network will release the resources reserved and release the circuit. So that is the circuit switched technology.
Packet switched technology means, when you try to communicate with some node on the network, your message will be encapsulated into packets and packets will be sent over the network with the destination address on it. Its just like the post you send with the address of the receiver. Network will analyse the address and identify which node will be the next one to receive this message, that node may be the destination or just a point between you and your destination. The node will do the same, reading the address and identify the next node to which the packet should be sent. So in this case, there will be no circuit reserved for your communication. The path will be build on run-time as per the availability of the nodes, traffic on the channel etc.
Hope I made my self clear here with the circuit switched and packet switched technologies/networks.
So now, back to the UMTS. Here is the basic architecture of the UMTS. This will be easy for you if you know GSM architecture.
So here you can see, it combines the GSM core and GPRS core networks to build the UMTS architecture with some new entities introduced.
New entities which are introduced are: Node B, UTRAN, RNC etc.
I will explain each of them in my next post.
Till then, keep on learning people..
..... Next time...:)
You may know it as 3G (3rd Generation) in telecommunication.
UMTS basically is a packet switched technology where GSM is circuit switched technology. Now, you may have questions like "What do you even mean by packet switched and circuit switched.?"
Circuit switched technology means, whenever you want to connect to some node on the network, the core network will identify a route from you to the requested node and make a dedicated line for the communication. All the resources in between this route will be reserved for you so that you can communicate properly. Now, when you no longer require the connection and close it down, the network will release the resources reserved and release the circuit. So that is the circuit switched technology.
Packet switched technology means, when you try to communicate with some node on the network, your message will be encapsulated into packets and packets will be sent over the network with the destination address on it. Its just like the post you send with the address of the receiver. Network will analyse the address and identify which node will be the next one to receive this message, that node may be the destination or just a point between you and your destination. The node will do the same, reading the address and identify the next node to which the packet should be sent. So in this case, there will be no circuit reserved for your communication. The path will be build on run-time as per the availability of the nodes, traffic on the channel etc.
Hope I made my self clear here with the circuit switched and packet switched technologies/networks.
So now, back to the UMTS. Here is the basic architecture of the UMTS. This will be easy for you if you know GSM architecture.
So here you can see, it combines the GSM core and GPRS core networks to build the UMTS architecture with some new entities introduced.
New entities which are introduced are: Node B, UTRAN, RNC etc.
I will explain each of them in my next post.
Till then, keep on learning people..
..... Next time...:)
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