18-06-2012, 01:05 PM
Tata Teleservices Ltd
Tata Teleservices Ltd.ppt (Size: 2.33 MB / Downloads: 82)
Company Profile
Tata Teleservices Spearheads the Group’s presence in the Telecom sector. Incorporeted in 1996,TTSL was the first to launch CDMA mobile services in India with the Andhra Pradesh circle.
The Company offers services under the brand name ‘Tata Indicom’ .
Having pioneered the CDMA 3G1X technology platform in India, Tata Teleservices has established a robust and reliable telecom infrastructure that ensures quality in its services. It has partnered with Motorola, Ericsson,Lucent and ECI Telecom for the deployment of a reliable, technologically advanced network.
Core Switching Network (CSN)
Mobile Switching Center (MSC)
Provides all of switching and signaling functions
Establishes call from and to MS within a services area as well as different services area
Visitor Location Register (VLR)
The VLR contains the information (Users’ profile, users location information etc) of subscribers who are attached to the system which helps to make correct routing of (terminating) calls.
Home Location Register (HLR/AuC)
Database that stores and manages subscribers’ profiles.
Contain Electronic Serial Number (ESN), Mobile Identification Number (MIN) etc and the restrictions for call making eligibility.
AuC handles subscriber authentication and encryption functions for security purposes and inter works with MSC through HLR.
Radio Access Network (RAN)
BSC ( Base Station Controller)
All radio resources are primarily managed by the BSC.
Handle connections to Mobile Stations.
It is connected with MSC for providing services to MS (Mobile Station) through BTS.
Also connected to the PDSN to provide packet data services to the MS.
Performs vocoding of the voice signal
Routes calls to the MSC.
Handles call control processes.
Traffic Handler, Power Control, Frame selection/distribution.
Packet Core Network (PCN)
PDSN (Packet Data Service node)
PDSN provides mobile communication subscribers with packet data service through interface with Internet network.
AAA (Authentication, Authorization and Accounting)
It contains subscriber packet –data – provisioning information and is used to authenticate and determine the parameters of a subscriber’s packet data session.
AAA also generates “Billing Records (UDRs - - - Usage Data Records)” for packet data usage.
LAND LINE TO LAND LINE CALL
A landline party called the number of another landline phone of the same operator and within that network. The call is taken by the RLU of that area of the called party. RLU sends it to the Wire Line switch. If the called party is near by the switch it transfers the call directly to the called party over copper cable. In case called party is far from the switch, then the call is first routed to the RLU of that location. From RLU the call is transferred to the called party.
Tata Teleservices Ltd.ppt (Size: 2.33 MB / Downloads: 82)
Company Profile
Tata Teleservices Spearheads the Group’s presence in the Telecom sector. Incorporeted in 1996,TTSL was the first to launch CDMA mobile services in India with the Andhra Pradesh circle.
The Company offers services under the brand name ‘Tata Indicom’ .
Having pioneered the CDMA 3G1X technology platform in India, Tata Teleservices has established a robust and reliable telecom infrastructure that ensures quality in its services. It has partnered with Motorola, Ericsson,Lucent and ECI Telecom for the deployment of a reliable, technologically advanced network.
Core Switching Network (CSN)
Mobile Switching Center (MSC)
Provides all of switching and signaling functions
Establishes call from and to MS within a services area as well as different services area
Visitor Location Register (VLR)
The VLR contains the information (Users’ profile, users location information etc) of subscribers who are attached to the system which helps to make correct routing of (terminating) calls.
Home Location Register (HLR/AuC)
Database that stores and manages subscribers’ profiles.
Contain Electronic Serial Number (ESN), Mobile Identification Number (MIN) etc and the restrictions for call making eligibility.
AuC handles subscriber authentication and encryption functions for security purposes and inter works with MSC through HLR.
Radio Access Network (RAN)
BSC ( Base Station Controller)
All radio resources are primarily managed by the BSC.
Handle connections to Mobile Stations.
It is connected with MSC for providing services to MS (Mobile Station) through BTS.
Also connected to the PDSN to provide packet data services to the MS.
Performs vocoding of the voice signal
Routes calls to the MSC.
Handles call control processes.
Traffic Handler, Power Control, Frame selection/distribution.
Packet Core Network (PCN)
PDSN (Packet Data Service node)
PDSN provides mobile communication subscribers with packet data service through interface with Internet network.
AAA (Authentication, Authorization and Accounting)
It contains subscriber packet –data – provisioning information and is used to authenticate and determine the parameters of a subscriber’s packet data session.
AAA also generates “Billing Records (UDRs - - - Usage Data Records)” for packet data usage.
LAND LINE TO LAND LINE CALL
A landline party called the number of another landline phone of the same operator and within that network. The call is taken by the RLU of that area of the called party. RLU sends it to the Wire Line switch. If the called party is near by the switch it transfers the call directly to the called party over copper cable. In case called party is far from the switch, then the call is first routed to the RLU of that location. From RLU the call is transferred to the called party.