WLAN与3G网路之间通道转换之研究

1、WLAN與3G網路之間 通道轉換之研究 Speaker: Kai-Hsiu ChenAdvisor: Jyh-Cheng Chen2006/1/81Protocol stack between WLAN UE and 3GPP core network3GPP TS 23234 , TS 332342Mapping between E2E tunnel and GTP tunnel 3GPP TS 232343Patent GoalsIP QoS integrationMinimize changesPDP context re-useParameters mappingMinimize th

2、e inter-system handoff delay4Integrated QoS architecture over COPS5Interworking procedure over Gn - Tunnel establishment procedure (1/3)WLANUETTG3GPPAAA-ServHSS/HLR1. IKE_SA_INIT Headers, Sec.Associations, D-H values, Nonces4. Access-Request/Identity User ID, W-APN5. Check in users subscription if t

3、unnel is allowed. User pro AVs retrieval if needed 6. EAP-Request/AKA(SIM)-Challenge7. IKE_AUTH ResponseHeader, PDG ID, Certificate, AUTH, EAP-Request/AKA(SIM)-ChallengeGGSNPCF 2. Mapping of SDP parameters into DiffServ IP header3. IKE_AUTH Request QoS class in IP headerHeader, User ID, Configuratio

4、n Payload, Sec. Associations, Traffic selectors, W-APN6Interworking procedure over Gn - Tunnel establishment procedure (2/3) 9.EAP-Response/AKA(SIM)-Challenge10.EAP-Success + keying material11. AUTH payload is computed using the keying material (MSK)12.IKE_AUTH Response Header, EAP-Success13.IKE_AUT

5、H Request AUTHWLANUETTG3GPPAAA-ServHSS/HLRGGSN15.Create PDP context requestPCF8. IKE_AUTH RequestHeader, EAP-Response/AKA(SIM)-Challenge 14. Mapping of DiffServ IP header into UMTS QoS7Interworking procedure over Gn - Tunnel establishment procedure (3/3)WLANUETTG3GPPAAA-ServHSS/HLRGGSN22.IKE_AUTH Response QoS class in IP headerHeader, AUTH, Configuration Payload, Sec.Associaitions, Traffic selectors21.Create PDP context responsePCF17. Process authorizationrequest16. COPS REQ18. COPS DEC19