Gsm architecture

It is made of many small units working in a harmonious way. To better understand the GSM architecture, divide all the units in four categories. The GSM system can be separated into three extensive divisions.

Gsm architecture

Gsm architecture

The MSC basically performs the switching function of the system by controlling calls to and from other telephone and data systems. It includes functions such as network interfacing and common channel signalling. The HLR is database software that handles the management of the mobile subscriber account.

The visitor location register maintains information about mobile subscriber thatis currently physically in the range covered by the switching center. The AuC holds the authentication and encryption keys for all the subscribers in both the home and visitor location register.

Network Switching Subsystem (NSS)

The EIR is another database that keeps the information about the identity of mobile equipment such the International mobile Equipment Identity IMEI that reveals the details about the manufacturer, country of production, and device type.

This information is used to prevent calls from being misused, to prevent unauthorised or defective MSs, to report stolen mobile phones or check if the mobile phone is operating according to the specification of its type.

This list contains the IMEI of the phones who are allowed to enter in the network. This list on the contrary contains the IMEI of the phones who are not allowed to enter in the network, for example because they are stolen.

This list contains the IMEI of the phones momentarily not allowed to enter in the network, for example because the software version is too old or because they are in repair. The tasks of an IWF are particularly to adapt transmission parameters and protocol conversions.

The physical manifestations of an IWF may be through a modem which is activated by the MSC dependent on the bearer service and the destination network.

Mobile station

The OSS Operational Support Systems supports operation and maintenance of the system and allows engineers to monitor, diagnose, and troubleshoot every aspect of the GSM network.The GSM network architecture is now well established and with the other later cellular systems now established and other new ones being deployed, the basic GSM network architecture has been updated to interface to the network elements required by .

The GSM network architecture provided a simple and yet effective architecture to provide the services needed for a 2G cellular system. There were four main elements to the overall GSM architecture and these could often be further split.

GSM - Explain GSM architecture with a neat block diagram, highlighting all the interfaces. There were four main elements to the overall GSM architecture and these could often be further split.
GSM network architecture elements It defines the different elements and the ways in which they interact to enable the overall system operation to be maintained.
GSM network areas Base station subsystem — the base stations and their controllers Network and Switching Subsystem — the part of the network most similar to a fixed network, sometimes just called the "core network" GPRS Core Network — the optional part which allows packet-based Internet connections Operations support system OSS — network maintenance Base station subsystem[ edit ] GSM cell site antennas in the Deutsches MuseumMunichGermany GSM is a cellular networkwhich means that cell phones connect to it by searching for cells in the immediate vicinity.
Engineering in your pocket Base station subsystem — the base stations and their controllers Network and Switching Subsystem — the part of the network most similar to a fixed network, sometimes just called the "core network" GPRS Core Network — the optional part which allows packet-based Internet connections Operations support system OSS — network maintenance Base station subsystem[ edit ] GSM cell site antennas in the Deutsches MuseumMunichGermany GSM is a cellular networkwhich means that cell phones connect to it by searching for cells in the immediate vicinity. There are five different cell sizes in a GSM network— macromicropicofemtoand umbrella cells.

The GSM contains most of the necessary capabilities to support packet transmission over GSM. The critical part in the GPRS network is the mobile to GSN (MS-SGSN) link which includes the MS-BTS, BTS-BSC, BSC-SGSN, and the SGSN-GGSN ashio-midori.com 1 shows block diagram of GSM architecture.

Given below is a simple pictorial view of the GSM architecture.

GSM Network Architecture | GSM System Architecture | ashio-midori.com

The additional components of the GSM architecture comprise of databases and messaging systems functions: Home Location Register (HLR) Visitor Location Register (VLR) Equipment Identity Register (EIR) Authentication Center (AuC).

The GSM contains most of the necessary capabilities to support packet transmission over GSM. The critical part in the GPRS network is the mobile to GSN (MS-SGSN) link which includes the MS-BTS, BTS-BSC, BSC-SGSN, and the SGSN-GGSN ashio-midori.com 1 shows block diagram of GSM architecture.

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.

GSM Architecture, Its Switching, Components | ashio-midori.com