Cellular Network
Ezequiel da Silva Oliveira
Programa de Educação Tutorial-PET-
Cellular Network
Talk about
Show operation of the cellular network and communication process.
History of Brazil
1990
The late 90
Different mobile
phone plans;
Devices
with technological
resources;On September 2011.116,51 cel/100 hab.
Font: http://www.teleco.com.br/ncel.asp
Communication process
MobileTelecommunications Switching Office (MTSO)
Communication process
MTSOMTSO
Two Possibilities:Roaming the subscriber's operator:Subscriber out of its area for mobility, but within the area of the same operator.
Happens, if: there is compatibility of terminal
with technical feature of operator; there is accord of roaming with
subscriber`s operator and visits operator.
Subscriber out of its area for mobility and area of the operator, but there is coverage of other operator (visits operator)
Roaming with other operator:
Roaming
In 1997 was defined a new model for telecommunications.
The mobiles terminals began to be used dual:
AMPS/TDMA and MPS/CDMA .
In 2001, the Anatel revised the model SMC and created SMP.
There was migration of all operator.
Main advantage: Ability to transfer control (operating band).
New areas of service SMP.
Local areas and long distance calls
The subscribe began choicing the operator for do long distance calls (LDN or LDI).
Video
Teleco (Inteligência em telecomunicações) - http://www.teleco.com.br/
Rede Celular - Francisco José da Silva e SilvaLaboratório de Sistemas Distribuídos (LSD) Departamento de Informática / UFMA
Bibliography
http://knol.google.com/k/3g#