Answer / senthil

global system for mobile communication

Answer / shikha

GSM is the globel system of organation . It consists of
M.S,BSC MSC ,OMC,FIXED Phone.Mobile station is carried by
the subscriber.and base station subsystem control the radio
link with mobile station . The main part of system is
mobile switching center perform switching of calls between
the mobile and fixed or mobile network use. and operational
and maintainence center oversees the proper operation and
set up of the network. The MS and BSC communicate across
the um link or air interface and BSC&MSC communicate across
A interface.

Answer / vasmatkar@hotmail.com

GSM works on combination of FDMA & TDMA technology.

Call flows from
mobile station-->cell site-->BSC(base transciver)-->MSC
(main switching centre)-->BSC-->cell site--> to recipent
mobile.

Answer / ashish kr pandey

GSM means global system of mobile communication
its is work on uplink and downlink. its work on two
frequency is 900Mhz and 1800MHZ .900mhz frequency are ms to
bts its uplink and 1800 freq is bts to ms .its downlink

Answer / mani

Mobility Management is one of the major functions of a GSM
or a UMTS network that allows mobile phones to work. The aim
of mobility management is to track where the subscribers
are, so that calls, SMS and other mobile phone services can
be delivered to them.

GSM (Global System for Mobile communications: originally
from Groupe Spécial Mobile) is the most popular standard for
mobile phones in the world. Its promoter, the GSM
Association, estimates that 82% of the global mobile market
uses the standard. GSM is used by over 3 billion people
across more than 212 countries and territories.Its ubiquity
makes international roaming very common between mobile phone
operators, enabling subscribers to use their phones in many
parts of the world. GSM differs from its predecessors in
that both signalling and speech channels are digital, and
thus is considered a second generation (2G) mobile phone
system. This has also meant that data communication was easy
to build into the system.

Answer / vinit panchal

gsm stands for global system for mobile .
in this system particular area is divided into a cluster
1 cluster is called a 7 cell this cell are arranged in hexagon shape. so we can use frequency reuse concept . in each cell there is a one bts for handling calls in that area.in our mobile sim(subscriber identification module) is there.when we are calling then mobile will send the signal to bts is the up link and bts send this signal via bsc,msc,hlr,vlr,auc,eir,pstn in sequence in this sequence our completely bio-data it will check and when authentication is done then it will transfer our call to our called user. when bts send signal to our called user from it's nearby area then the signal between bts and called user is down link.

Answer / rehan

GSM is a global system for mobile communication. it has
three major terms. they are switching system,base station
system and operating and support system. it is a 2G technology.
freq range is 900 MHZ to 1500MHZ

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