IPv6 in UMTS Hesham.Soliman@era.ericsson.se

Presentation Outline IP in UMTS Addressing Migration IPv6 over the air Mobility Support

3GPP UMTS Standard Network

Growth of the Mobile Internet IPv4 addresses: 4B theoretical China: 9 Million Europe: 80 Million US gov. 168 Million 1980: 200 user on 1 mainframe 2000: 1 mobile + 1 PC per user 2020: 200 Embedded, wireless devices per user @ 2B humans is 400B 1,000 4 year 8 year (1992-2000) GSM 150 Million new users by 2003-2004 implies 500.000/day Fixed 800 600 Mobile Internet Internet In 1999: 100 M PC’s 275 Mobiles (Millions) Mobile 400 200 1996 1998 2000 2002 2004

Benefits of IPv6 Almost unlimited number of addresses Built in security support (IPsec) Built in mobility support (MIPv6) Efficient routing Features for simplified Network management Same level of QoS support as in IPv4 with potential improvement

Addressing of a 3GPP Network

User level addressing in a 3GPP Network Possible scenarios Stateless Address Autoconfiguration* Stateful Adress Autoconfiguration (DHCP client in the UE) Stateful Address autoconfiguration (DHCP client in the GGSN) Static Addresses in the HLR

End to end incompatibility vs connectivity layer incompatibility V6 UE End to end V4 host IPv6 domain IPv4 domain Edge router Translator V4 edge router / GGSN V4 backbone

Translation IPv4 Domain IPv6 Domain Service Network Translator SGSN GGSN SGSN Core Network RNS RNC RBS RBS RBS RBS RBS RBS GERAN UTRAN

6-to-4 tunnelling V4_Addr V4 backbone 3 13 8 24 16 64 bits TLA NLA SLA 001 Interface ID RES Public Topology Site Topology Interface Identifier V4_Addr IPv6 domain V4 backbone 6 to 4 edge router V6 edge router 6 to 4 relay router

IPv6 over the air ROHC approved by 3GPP For optimal Header Compression, changes in headers within one connection should be minimised. Limit the use of IPsec for IP signalling and other mandatory scenarios. Enable partial UDP checksum for real time applications (UDP Lite)

IPv6 mobility support (MIPv6) Home Agent Home Network Correspondent Node (CN) Correspondent Node (CN) HA/MAP GGSN Access Router System A (UMTS Foreign Network) System B (BT/WLAN Foreign Network) Mobile Node (MN)

MIPv6 …cont IP Network Mobile IP Core Network GPRS CN (GTP) RAN GSM UTRAN Other

Questions ?