migration towards ip standards in gsm mobile networks
DESCRIPTION
Migration towards IP standards in GSM Mobile Networks. Rajkrishna Srinivasan 780915A355 2G1330, Wireless and Mobile Network Architecture 3 rd June 2004 Royal Institute of Technology [email protected]. Structure. Why this topic? GSM Introduction The life cycle IP in GSM IP in GPRS IP in 3G - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/1.jpg)
Migration towards IP standards in GSM Mobile Networks
Rajkrishna Srinivasan780915A355
2G1330, Wireless and Mobile Network Architecture3rd June 2004Royal Institute of [email protected]
![Page 2: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/2.jpg)
Structure
• Why this topic?
• GSM Introduction
• The life cycle
• IP in GSM
• IP in GPRS
• IP in 3G
• The Future
![Page 3: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/3.jpg)
Why this topic?
• Technology suffers due to proprietary standards
• IP - Open Technology
• Telephony through IP picking up
• Best Effort Service in Carrier Grade System?
![Page 4: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/4.jpg)
GSM Introduction - 1
• CEPT - Conférence Européenne des Postes et Télécommunications
• SMG – ETSI
• GSM – Global System for Mobile Communication
• A Success Story – 190 + countries
![Page 5: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/5.jpg)
GSM Introduction - 2
HLRAUC VLR
MSC
BSC
BTS
MS
BSC
BTS
MS
BSS
A Interface
SS
![Page 6: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/6.jpg)
Life Cycle
• Need to evolve
• New methods to make money
• Data Traffic
• Existing spectrum getting congested
![Page 7: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/7.jpg)
GSM Architecture
MS MSC BSS
TDMA/FDMA TDMA/FDMA
LAPDm LAPDm
RR
MM
CM
RR
MTP
BSSAP SCCP
BSSAP SCCP
MTP 1
2
3/M
Radio Interface A-Interface
MM
CM
![Page 8: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/8.jpg)
IP in GSM
• No provision for IP in this architecture
• Ericsson Trials of “GSM on Net”1
• But still no “real support” for DATA – only HSCSD
• Since IP not used -> Problems of interoperability
1 -http://www.theregister.co.uk/1998/12/23/ericsson_plans_merger_of_wireless/
![Page 9: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/9.jpg)
GPRS
• First attempt to address problem of handling data
• Consists of GSNs (Support Nodes)
• Pay for data usage – always connected!
• Only an interim solution
![Page 10: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/10.jpg)
IP in GPRS
Relay
Network
Service
GTP-
Application
IP
SNDCP
LLC
RLC
MAC
GSM RF
SNDCP
LLC
BSSGP
L1bis
RLC
MAC
GSM RF
BSSGP
L1bis
Relay
L2
L1
IP
L2
L1
IP
GTP-U
IP
Um Gb Gn Gi MS BSS SGSN GGSN
Network
Service
UDP
UDP
![Page 11: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/11.jpg)
3G
• What is 3GPP
• Significance of Release 5
• WCDMA UMTS
• SIP and IP for Multimedia
![Page 12: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/12.jpg)
3GPP Architecture
• Radio Network Controller
• Node B
• Home Subscriber Server
• IP Multimedia Subsystem
![Page 13: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/13.jpg)
Why IMS
• Release 4 of UMTS problems
• VoIP market growth
• Session Initiation Protocol -> Call Control Protocol
• New content, killer apps, multimedia
![Page 14: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/14.jpg)
Why SIP in IMS
• Change in internet model
• Client Server – HTTP, FTP etc
• Now it’s Peer to Peer
• Here SIP has five roles in Establishing, maintaining and terminating communications: User Location, User Availability, User Capability, Call Setup and Call Handling
![Page 15: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/15.jpg)
3GPP Architecture
![Page 16: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/16.jpg)
Open Service Access
• Who is going to make use of all this technology?
• How to boost ARPU?
• Parley group
• Parley OSA -> Common Application Programming Interface (API)
![Page 17: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/17.jpg)
OSA Architecture
framework User Location
HLR CSE WGWWPP
Servers
Service capability server(s)
Interfaceclass
OSA APIOpen Service Access
discovery
Application
Applicationserver
OSA internal API
![Page 18: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/18.jpg)
Challenges for IP
• IP designed for traditional internet - delay is OK!
• Lower layers shielded – Preventive strategy for critical applications
• Notorious radio links
![Page 19: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/19.jpg)
The Future
• 3GPP – Europe and Japan
• 3GPP2 – America and Korea
• IP in 3GPP and 3GPP2
![Page 20: Migration towards IP standards in GSM Mobile Networks](https://reader034.vdocument.in/reader034/viewer/2022042608/56812dbd550346895d92fcd0/html5/thumbnails/20.jpg)
Conclusion
• All IP alternative – Huge Bandwidth Available
• More revenues – ARPU vs. OpEx/CapEx
• More enriched services
• 4G – The “all IP” system