 |
Telecom Resources - GSM |
 |
|
|
| _________ _______________________ |
 |
|||||||||||||
|
|
||||||||||||
 |
|||||||||||||
|
SS7,
GSM, CDMA, 3G, IN Information
|
Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization group established in 1982 to create a common European mobile telephone standard that would formulate specifications for a pan-European mobile cellular radio system operating at 900 MHz. It is estimated that many countries outside of Europe will join the GSM partnership.
Cellular is one of the fastest growing and most demanding telecommunications applications.
Throughout the evolution of cellular telecommunications, various systems have been developed without the benefit of standardized specifications. This presented many problems directly related to compatibility, especially with the development of digital radio technology. The GSM standard is intended to address these problems.
From 1982 to 1985 discussions were held to decide between building an analog or digital system. After multiple field tests, a digital system was adopted for GSM. The next task was to decide between a narrow or broadband solution. In May 1987, the narrowband time division multiple access (TDMA) solution was chosen.
GSM provides recommendations, not requirements. The GSM specifications define the functions and interface requirements in detail but do not address the hardware. The reason for this is to limit the designers as little as possible but still to make it possible for the operators to buy equipment from different suppliers. The GSM network is divided into three major systems: the switching system (SS), the base station system (BSS), and the operation and support system (OSS).
Resources:
GSM World
IEC: GSM Tutorial
GSM Security
GSM Technical Data
GSM Codec
Overview of the GSM System
NEW ON THIS SITE:
MVNO: is a GSM phenomenon where an operator or company which does not own a licenced sprectrum and generally with own networking infrastructure. Instead MVNOs resell wireless services under their brand name, using a regular telecom operator's network with which they have a business arrangements. Usually they they buy minutes of use (MOU) from the licenced telecom operator and then resell minutes of usage to their customers of MVNO. Currently MVNOs are emerging in fast pace in European markets and beginning in USA also. Slowly MVNO phenomenon catching up in Asia and other parts of the world also.
READ MORE HERE
| © 2005 All Rights Reserved. |
Website built and hosted for free at  .
Get your own Free
Website now!
|