What is GSM and UMTS?
What is GSM and UMTS?
GSM is a second-generation (2G) technology, and UMTS is a third-generation (3G) technology. UMTS provides the 3G migration path to GSM and is therefore superior to GSM. When GSM networks were originally launched, they were circuit-switched and mainly offered voice and text message (SMS) services.
What is UMTS technology?
UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second (Mbps).
How does UMTS network work?
UMTS relies on a packet-switched system. This allows cellular devices to send small “packets” of data to a destination, whereas circuit-switched networks require a point-to-point connection. In an old phone network, making a call meant reserving a line between the sender and receiver.
What are the main elements of UMTS?
UMTS (Universal Mobile Telecommunications System) 1.
What is UMTS architecture?
UMTS system uses the same core network as the GPRS and uses entirely new radio interface. The new radio network in UMTS is called UTRAN (UMTS Terrestrial Radio Access Network) and is connected to the core network (CN) of GPRS via Iu interface.
What is the difference between GSM GPRS and UMTS?
In GSM,data is supported based on GPRS technology. UMTS stands for Universal Mobile Telecommunications System, developed based on 3GPP standards….Key difference between GSM and UMTS systems.
|Channel rate (Kb/s)
|1228.8 kbps (in CDMA)
What are the layers of UMTS?
UMTS protocol stack consists of Access Stratum(AS) and Non Access Stratum(NAS). Access Stratum supports OSI-layer 1 to 3. It consists of PHY(layer 1), MAC(layer 2),RLC(layer 2) and RRC(layer 3). NAS or core network part is divided based on circuit switched(CS) or packet switched(PS) functionalities.
Why is UMTS important?
The UMTS Access network is responsible mainly for radio related matters, it provides the radio access needed for wireless operation. Many important functions of a mobile system, e.g. handovers, are to a large extent implemented in the Access network.
What are the domains and interfaces of UMTS?
A UMTS network consist of three interacting domains; Core Network (CN), UMTS Terrestrial Radio Access Network (UTRAN) and User Equipment (UE). The main function of the core network is to provide switching, routing and transit for user traffic. Core network also contains the databases and network management functions.
What are the layer of UMTS?
What are the three elements of UMTS network architecture describe?
As shown in the figure there are three main components in UMTS network architecture, User Equipments is composed of Mobile Equipment (ME) and USIM. Radio Access Network is composed of NodeB and RNC. Core Network is composed of circuit switched and packet switched functional modules.
What is the difference between LTE CDMA and LTE GSM UMTS?
GSM/UMTS, CDMA/CDMA200, and LTE are mobile standards that were developed to work with different networks. GSM and CDMA were used to move into the 2G network, while UMTS and CDMA2000 were used to transition into the 3G network. LTE, on the other hand, migrates CDMA/CDMA2000 and GSM/UMTS into the 4G network.