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Kapitel 14: Mobilt Internet

Explore basic terms, header formats, and data routing in Mobile IP networks to enhance understanding of home and visited networks. Learn about agents, addresses, and communication protocols. Discover the core and access networks in 3G for seamless connectivity.

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Kapitel 14: Mobilt Internet

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  1. Kapitel 14: Mobilt Internet Maria Kihl och Jens A Andersson

  2. Figur 14.1:Grundläggande termer för Mobile IP Home network 180.35.20.0 Visited network 150.10.0.0 Mobil station Care-of adress: 150.10.0.5 Permanent adress: 180.35.20.10 Home agent Foreign agent Internet Korrespondent

  3. Figur 14.2:Header-format för Agent advertisement Type=9 Kod = 0 Kontrollsumma Standard ICMP Router-adress Type= 16 Längd Sekvensnummer Livslängd Flaggor Reserverad 0 eller flera care-of adresser Mobile IP utökning

  4. Figur 14.3:Routing av data i Mobile IP Home network 180.35.20.0 Visited network 150.10.0.0 Permanent adress: 180.35.20.10 Care-of adress: 150.10.0.5 180.35.20.10 180.35.20.10 150.10.0.5 Home agent Foreign agent 180.35.20.10 Korrespondent

  5. Figur 14.4:Access- och Kärnnät i 3G PSTN Kärnnät Accessnät MSC GMSC VLR HLR RNC UE Node B SGSN GGSN Internet

  6. Figur 14.5:Kommunikationen mellan noderna i kärnnätet RNC SGSN GGSN Internet (IP) ATM IP

  7. Figur 14.6:En förenklad protokollstack för Internet över 3G HTTP TCP IP IP GTP GTP GTP TCP/UDP TCP/UDP IP IP UTRAN protokoll UTRAN protokoll ATM ATM IP-bärande nät IP-bärande nät GGSN UE RNC SGSN

  8. Figur 14.7:Exempel på områden i 3G SGSN MSC SGSN MSC SGSN RNC RNC RNC RA RA RA RA = Routing Area; LA = Location Area LA LA

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