Gsm architecture in mobile computing

Digital cellular technology like GSM (Global System for Mobile Communication) is used to transmit mobile data as well as voice services. This concept was implemented at Bell Laboratories using a mobile radio system in 1970. As the name suggests, it is the standardization group name that was established in the year1982 to make a general European mobile telephone standard. This technology owns above 70% of the market share of the digital cellular subscriber around the world. This technology was developed by using digital technology. At present, GSM technology supports above 1 billion mobile subscribers around the world in the above 210 countries. This technology provides voice and data services from fundamental to complex. This article discusses an overview of GSM technology. What is GSM Technology? GSM is a mobile communication modem; it stands for global system for mobile communication (GSM). The idea of GSM was developed at Bell Laboratories in 1970. It is a widely used mobile communication system in the world. GSM is an open and digital cellular technology used for transmitting mobile voice and data services operate at the 850MHz, 900MHz, 1800MHz, and 1900MHz frequency bands. GSM technology was developed as a digital system using the time division multiple access (TDMA) technique for communication purposes. A GSM digitizes and reduces the data, then sends it down through a channel with two different streams of client data, each in its own particular time slot. The digita...

The GSM architecture consists of three major interconnected subsystems that interact with themselves and with users through certain network interface. The subsystems are Base Station Subsystem (BSS), Network Switching Subsystem (NSS) and Operational Support Subsystem (OSS). Mobile Station (MS) is also a subsystem but it is considered as a part of BSS. 1. Mobile Station (MS): Mobile Station is made up of two entities. A. Mobile equipment (ME): • It is a portable, vehicle mounted, hand held device. • It is uniquely identified by an IMEI number. • It is used for voice and data transmission. It also monitors power and signal quality of surrounding cells foe optimum handover. 160 characters long SMS can also be sent using Mobile Equipment. B. Subscriber Identity module (SIM): • It is a smart card that contains the International Mobile Subscriber Identity (IMSI) number. • It allows users to send and receive calls and receive other subscriber services. - It is protected by password or PIN. • It contains encoded network identification details. it has key information to activate the phone. • It can be moved from one mobile to another. 2. Base Station Subsystem (BSS): It is also known as radio subsystem, provides and manages radio transmission paths between the mobile station and the Mobile Switching Centre (MSC). BSS also manages interface between the mobile station and all other subsystems of GSM. It consists of two parts. A. Base Transceiver Station (BTS): • It encodes, encrypts,...

• Trending Categories • Data Structure • Networking • RDBMS • Operating System • Java • MS Excel • iOS • HTML • CSS • Android • Python • C Programming • C++ • C# • MongoDB • MySQL • Javascript • PHP • Physics • Chemistry • Biology • Mathematics • English • Economics • Psychology • Social Studies • Fashion Studies • Legal Studies • Selected Reading • • • • • • • Global System for Mobile communication (GSM) architecture comprises of the following components − • Mobile Station : The mobile station is the mobile phone, which comprises of the mobile handset and SIM card. The mobile handset comprises of the transceiver, the display and its processor. SIM stands for SubscriberIdentity Module. It is a removable chip that contains account information of the subscriber and connects the handset to the mobile network system. • Air Interface : The air interface is the interface between the mobile station and the Base Transceiver Station. It is also called the UM interface as it is analogous to U interface of ISDN. GSM runs on a range of frequencies including 900, 1800 and 1900 MHz. It uses frequency division duplex (FDD) that divides the channel into several sub-bands. Each of the sub-bands are shared by multiple mobiles through time division multiplexing (TDM). • Base Station Subsystem : It is a connection between the mobile station and the mobile switching center. It comprises of two parts − • Base Transceiver Station (BTU) − It handles the protocols for communication with the mobile...

GSM Architecture | GSM network architecture The GSM architecture is categorized into MS, BSS and NSS. This page describes GSM network architecture on BSS and NSS sides. The GSM architecture network interfaces between elements are also mentioned. MS, BSS and NSS stand for Mobile Station, Base Station Subsystem and Network and Switching Subsystem respectively. Introduction: GSM is the short form of Global System for Mobile Communications. It is called 2G or Second Generation technology. There are various GSM standards such as GSM900, EGSM900, GSM1800 and GSM 1900 which uses different frequency bands for their operation. GSM uses TDMA/FDMA access technique. GSM 900 uses uplink frequency band from 890 to 915 MHz and downlink frequency band from 935 to 960 MHz. It uses bandwidth of 200 KHz. GSM Network Architecture As we know GSM network is composed of three basic parts or subsystems viz. MS, BSS and NSS. BSS is referred as GSM access network and NSS is referred as GSM core network. Mobile Station- This Mobile station is GSM mobile phone equipment which houses DSP,RF chip and SIM(subscriber Identity Module). This SIM is enough to carry to avail the service of GSM network. SIM contains subscriber related all the information, network with which subscriber is subscribed with and encryption related information. Base station Subsystem- Base station subsystem houses Base Transceiver station-BTS and Base station controller-BSC. This subsystem take care of radio control related functio...

GSM stands for Global System for Mobile Communication. GSM is an open and digital cellular technology used for mobile communication. It uses 4 different frequency bands of 850 MHz, 900 MHz, 1800 MHz and 1900 MHz . It uses the combination of FDMA and TDMA. This article includes all the concepts of GSM architecture and how it works. GSM is having 4 different sizes of cells are used in GSM : • Macro : In this size of cell, Base Station antenna is installed. • Micro : In this size of cell, antenna height is less than the average roof level. • Pico : Small cells’ diameter of few meters. • Umbrella : It covers the shadowed (Fill the gaps between cells) regions. Features of GSM are : • Supports international roaming • Clear voice clarity • Ability to support multiple handheld devices. • Spectral / frequency efficiency • Low powered handheld devices. • Ease of accessing network • International ISDN compatibility. • Low service cost. • New features and services. GSM is nothing but a larger system which is divided into further 3 subsystems. • BSS : BSS stands for Base Station Subsystem. BSS handles traffic and signaling between a mobile phone and the network switching subsystem. BSS having two components BTS and BSC. • NSS : NSS stands for Network and Switching Subsystem. NSS is the core network of GSM. That carried out call and mobility management functions for mobile phone present in network. NSS have different components like VLR, HLR and EIR. • OSS : OSS stands for Operating Sub...

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