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The different dimensions of mobility management

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Terminal Mobility

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To Reach: The dial up model

+RPH

3XEOLF

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Authentication AAA

RadiusDiameter

DHCPwww.ericsson.com

To reach: The Cellular Access to Internet

UTRAN

+RPH

3XEOLF

,QWHUQHW

www.ericsson.com

GPRS

HLR

GSMGGSNMAP

NetworkAuthentication

The Cellular Access to Internet; Inter Operator

UTRAN

+RPH

3XEOLF

,QWHUQHW

www.ericsson.com

GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

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To Reach: The dial up model

+RPH

3XEOLF

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Authentication AAA

RadiusDiameter

DHCPwww.ericsson.com

To reach: The Cellular Access to Internet

UTRAN

+RPH

3XEOLF

,QWHUQHW

www.ericsson.com

GPRS

HLR

GSMGGSNMAP

NetworkAuthentication

The Cellular Access to Internet; Inter Operator

UTRAN

+RPH

3XEOLF

,QWHUQHW

www.ericsson.com

GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

To be reached

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To be reached: The dial up model with serviceregistration

+RPH

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Authentication AAA

RadiusDiameter

sip-server.comicq.com- -

Service registration

InviteSession

DNS

To be Reached: The Cellular Access to Internet

UTRAN

+RPH

3XEOLF

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sip-server.com

GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

DNS

Server to be reached

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Authentication

Service registration

svd.se/alg

DNS

Location Server

Server to be reached: Cellular access

UTRAN

+RPH

3XEOLF

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GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

svd.se/alg

DNS

Location Server

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Session Transfer

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Session

Session Continuity: Keep a session active whilechanging access point. Handover.

Access network internal change of access point• Radio access technologies requiring hard resource

control, i.e. cellular• Radio access technologies based on over provisioning,

i.e. WLAN

Between access points in different access networks.

Session Continuity while changing access point

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Access network internal change of access point:Cellular; GTP

UTRAN

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sip-server.com

GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

DNS

Access network internal change of access point:Cellular; Mobile IP

UTRAN

+RPH

3XEOLF

,QWHUQHW

sip-server.com

GPRS

HLR

GSM

UTRAN GPRS

GSM

GGSN

GGSN

DNSHA

FA

FA

Access network internal change of access point:WLAN

+RPH

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sip-server.com

DNS

Mobile IPCellular IP, Hawaii

Access technology change;Mobile IP

UTRAN

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3XEOLF

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sip-server.com

GPRSGSM

GGSN

DNSHA

FA

FA

The Post PC-Era, the Challenge of the Mobile InternetThe Post PC-Era, the Challenge of the Mobile Internet

1996 1998 2000 2002 20040

200

400

600

800

1,000

(Mill

ions

)

Fixed

MobileInternet

Mobile Internet

4 year8 year (1992-2000) GSM

1980: 200 user on 1 mainframe2000: 1 mobile + 1 PC per user2020: 200 Embedded, wireless devices per user

IPv4 addresses: 4B theoreticalChina: 9 MillionEurope: 80 MillionUS gov. 168 Million

IPv6 in Mobile Networks is about two thingsIPv6 in Mobile Networks is about two things

• Providing end-user IPv6 connectivity• IPv6 for transport/networking

UDP

Iu SGSNTE Uu GGSN

RO

CC

O

UDP

IP

RTP

APPL

L1

Gn

UDP

IP

RTP

RNC

UDP

IP

GTP-U

RLC/MAC

PDCP

L2

IP

RO

CC

O

UDP

IP

RTP

L1

RLC/MAC

PDCP

RTP

L1

UDP

IP

GTP-U

L2

L1

UDP

IP

GTP-U

L2

L1

UDP

IP

GTP-U

L2

L1

L1

IP

L2

APPL

L1

L2

TE

Internet

Conclusions

Person To be Reached:Application dependent today, is that OK? No

To Reach:Solved today, AAA, Radius, Diameter, DHCP

Session continuity:Solved in Cellular on link level, GTP. Can be combinedwith mobile IP.Other solutions may be applied to accesses based on

over provisioning, Cellular IP, Hawaii

Session transfer:No solution today.

Terminal To be Reached:Solved in Cellular on link level, GTP.DNS - Low dynamics only, Something now needed.

IPv6: Unavoidable