What are different interfaces used in GSM?
This page of GSM tutorial covers GSM network interfaces which includes Um, A, Asub, Abis, B, C, D, E, F and G interfaces. Figure-1 depicts all the GSM network interfaces between GSM subsystems. The table below describes the same GSM network interfaces.
How many interface are there in GSM?
The GSM specifications define two truly open interfaces within the GSM network. The first one is between the Mobile Station (MS) and the Base Station (BS).
Which type of interface is radio interface in GSM?
The GSM radio interface is based on a TDMA structure with eight time slots and 200 kHz carrier bandwidth. To increase data rates, today’s GPRS and EDGE terminals can use multiple time slots for transmission, reception, or both.
What is a interface in telecom?
In telecommunications, a network-to-network interface (NNI) is an interface that specifies signaling and management functions between two networks. An NNI circuit can be used for interconnection of signalling (e.g., SS7), Internet Protocol (IP) (e.g., MPLS) or ATM networks.
What is the air interface in GSM?
The Um interface is the air interface for the GSM mobile telephone standard. It is the interface between the mobile station (MS) and the Base transceiver station (BTS). It is called Um because it is the mobile analog to the U interface of ISDN.
What is a radio interface?
radio interface: The common boundary between a mobile station and the radio equipment in the network, which is the boundary defined by functional characteristics, physical interconnection characteristics, signal characteristics, and other characteristics as appropriate.
What is the interface between two MSCs?
E interface The E interface provides communication between two MSCs. The E interface exchanges data related to handover between the anchor and relay MSCs using the MAP/E protocol. F interface The F interface is used between an MSC and EIR. It uses the MAP/F protocol.
What is the 2G air interface?
The Air Interface The 2G base station is a Basic Transceiver Station (BTS) controlled by the Base Station Controller (BSC). The 3G base station is a Node B controlled by the Radio Network Controller (RNC).
Which interface is called as air interface?
radio interface
The air interface is the wireless counterpart of the physical layer 1 in the OSI model (see OSI model). Also called a “radio interface,” the air interface defines the frequency, channel bandwidth and modulation scheme.
What is standard GSM?
GSM (Global System for Mobile communications) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as tablets.
What is interface interface?
Interface (computing) In computing, an interface is a shared boundary across which two or more separate components of a computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans and combinations of these. Some computer hardware devices, such as a touchscreen,…
What is a GSM connection?
Physically, a GSM network consists mainly of connection devices such as gateways, repeaters, and relays (commonly called antennae). These are the ubiquitous, massive metal structures that stand as high towers. A GSM network is a cellular network; that is, it connects cells — the small areas covered by towers.
What is GSM communication system?
GSM (Global System for Mobile communication) GSM (Global System for Mobile communication) is a digital mobile network that is widely used by mobile phone users in Europe and other parts of the world.