21-03-2012, 12:37 PM
GSM – Global System for Mobile Communication.
gsm-seminar.pdf (Size: 1.39 MB / Downloads: 140)
Milestones in the evolution of GSM
1982 Groupe Spécial Mobile established by the CEPT.
1987 Essential elements of wireless transmission are specified, based on
prototype evaluation (1986).
Memorandum of Understanding (MoU) Association founded in September
with 13 members from 12 countries.
1989 GSM becomes an ETSI Technical Committee (TC).
1990 The Phase 1 GSM900 specifications (designed 1987 through 1990) are
frozen.
Adaption to DCS1800 commences.
1991 First GSM networks launched.
The DCS1800 specifications are finalized.
1992 Most European GSM networks turn commercial by offering voice communication
services. Some 13 networks in 7 countries are “on air” by
the end of the year.
1993 First roaming agreements in effect By the end of 1993, 32 networks in
18 countries are operational.
Mobile subscriber data in the HLR
Subscriber and subscription data Tracking and routing information
International Mobile Subscriber Identity
IMSI
Mobile Station Roaming Number
MSRN
International Mobile Subscriber ISDN
Number MSISDN
Current VLR address (if available)
Bearer and telesevice subscriptions Current MSC address (if available)
Sevice restrictions, e.g. roaming restrictions
Local Mobile Subscriber Identity LMSI
(if available)
Parameters for additional services
Information on the subscriber’s equipment
(if available)
Authentication data (subject to implementation)
gsm-seminar.pdf (Size: 1.39 MB / Downloads: 140)
Milestones in the evolution of GSM
1982 Groupe Spécial Mobile established by the CEPT.
1987 Essential elements of wireless transmission are specified, based on
prototype evaluation (1986).
Memorandum of Understanding (MoU) Association founded in September
with 13 members from 12 countries.
1989 GSM becomes an ETSI Technical Committee (TC).
1990 The Phase 1 GSM900 specifications (designed 1987 through 1990) are
frozen.
Adaption to DCS1800 commences.
1991 First GSM networks launched.
The DCS1800 specifications are finalized.
1992 Most European GSM networks turn commercial by offering voice communication
services. Some 13 networks in 7 countries are “on air” by
the end of the year.
1993 First roaming agreements in effect By the end of 1993, 32 networks in
18 countries are operational.
Mobile subscriber data in the HLR
Subscriber and subscription data Tracking and routing information
International Mobile Subscriber Identity
IMSI
Mobile Station Roaming Number
MSRN
International Mobile Subscriber ISDN
Number MSISDN
Current VLR address (if available)
Bearer and telesevice subscriptions Current MSC address (if available)
Sevice restrictions, e.g. roaming restrictions
Local Mobile Subscriber Identity LMSI
(if available)
Parameters for additional services
Information on the subscriber’s equipment
(if available)
Authentication data (subject to implementation)