* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Sub1Sub2
Survey
Document related concepts
Net neutrality law wikipedia , lookup
Policies promoting wireless broadband in the United States wikipedia , lookup
Wake-on-LAN wikipedia , lookup
Deep packet inspection wikipedia , lookup
TV Everywhere wikipedia , lookup
Distributed firewall wikipedia , lookup
Computer network wikipedia , lookup
IEEE 802.11 wikipedia , lookup
Recursive InterNetwork Architecture (RINA) wikipedia , lookup
Airborne Networking wikipedia , lookup
Network tap wikipedia , lookup
Zero-configuration networking wikipedia , lookup
SIP extensions for the IP Multimedia Subsystem wikipedia , lookup
Cracking of wireless networks wikipedia , lookup
Wireless security wikipedia , lookup
Transcript
異質無線網路整合與 漫遊技術簡介 交通大學資工系 曹孝櫟助理教授 Heterogeneous Wireless Network Integration (1/4) • Generic Architecture Mobile Terminal Radio Access Network WiMAX/ WiMAX relay Core Network Service Network All IP Fixed Mobile Convergence Broadband & IP IMS/SIP WLAN/ WLAN mesh 3G/B3G New Air/ 4G BT/UWB … Multi-mode & Heterogeneous Heterogeneous & overlay AAA Network Heterogeneous Wireless Network Integration (2/4) • IETF Perspective Mobility WiMAX/ WiMAX relay WLAN/ WLAN mesh All IP + Application Mobility New Air/ 4G Or 3G/B3G BT/UWB … Multi-mode & Heterogeneous Heterogeneous ANs All IP + Network Mobility IPv4 or IPv6 IP-based applications Heterogeneous Wireless Network Integration (3/4) • IEEE Perspective WLAN/ WLAN mesh IEEE 802.21 3G/B3G New Air/ 4G BT/UWB … Multi-mode & Heterogeneous Heterogeneous ANs IEEE 802.21 Mobility WiMAX/ WiMAX relay All IP + Application Mobility Or All IP + Network Mobility IPv4 or IPv6 IP-based applications Heterogeneous Wireless Network Integration (4/4) • 3GPP/WiMAX Perspective UMA 3GPP Core 3GPP AN WLAN AN WiMAX AN 3GPP/WLAN/WiMAX Terminal IP Core CSCF/… 3GPP/WiMAX & IP Core Network IMS/SIP PDG 3GPP/WLAN/WiMAX AN WiMAX Core Application Layer: SIP Mobility Terminal mobility: pre-call Terminal mobility: mid-call Personal Mobility SIP for Mobility presentation, SIP 2001, Henning Schulzrinne Service Mobility Application Layer: SIP Mobility Handoff Delay Analysis for SIP Mobility in IPv6 Testbed, N. Nakajima, A.Dutta, S. Das, H. Schulzrinne Network Layer: Mobile IP Inside Mobile IP, Narendra Venkataraman, Dr. Dobb's Journal Network Layer: SCTP/Multi-homing http://www.ibm.com/developerworks/cn/linux/l-sctp/figure2.gif Network Layer: IETF WGs • Mext: Mobility EXTensions for IPv6 • Mipshop: Mobility for IP: Performance, Signaling and Handoff Optimization • Netlmm: Network-based Localized Mobility Management • Shim6: Site Multihoming by IPv6 Intermediation • Mip4: Mobility for IPv4 Network Layer: 3GPP Intranet / Internet 3GPP Network WLAN UE WLAN Access Network (with or without an intermediate network) 3GPP AAA Server Packet Data GW WLAN3GPP IP Access 3GPP PS services (including access to internet) www.3gpp.org Network Layer: 3GPP2 www.3gpp2.org Network Layer: WiMAX Forum http://www.wimaxforum.org/home/ Link Layer: UMA UMA, 3GPP 802.21 Overview 802.21: Key Services Applications (VoIP/RTP) LinkHandover Layer Triggers Connection Management Policy IETF State Change Handover Management Predictive Network Initiated Mobility Management Protocols Smart Triggers Handover Messages Information Service IEEE 802.21 802.21 MIH Function Handover Commands L2 Triggers and Events Handover Messages WLAN Network Information Available Networks Neighbor Maps Network Services Client Initiated Network Initiated Vertical Handovers Information Service Cellular WMAN Protocol and Device Hardware 802.21 uses multiple services to Optimize Vertical Handovers 2017-05-25 http://ieee802.org/21/ 15 3GPP Perspective Inter-working Model Simplified Reference Model External IP Networks PSTN 3GPP System 3GPP System 3GPP System 3GPP 3GPP 3GPP Billing Billing Billing System System System 3GPP PS Services (e.g. IMS) CS Domain M WLAN system . WLAN system . WLAN system WLAN Access 2 WLANAuthentication system WLAN Access Access 1 WLAN system WLAN Access Access Authentication Control Charging WLANCharging Access Access Authentication Control Access WLAN Access Authentication Control Charging Authentication Access Charging Control Charging WLAN Control Mobility WLAN WLAN AP WLAN AP WLAN AP Network AP AP PS Domain UTRAN/GERAN Node -B/BTS UE UE HLR Access Authentication Charging Encryption Mobility 1 N . 6 Scenarios Scenarios: Scenario 1: Scenario 2: Scenario 3: Scenario 4: Scenario Scenario 6: Common 3GPP Access to Service 5: Access to Billing and system 3GPP continuity Seamless 3GPP Customer based system PS services system CS Care Access based based Service and operational Control and services Services Capabilities: Charging Common billing X X X X X X Common customer care X X X X X X X X X X X X X X X X 3GPP system based Access Control 3GPP system based Access Charging 6 Scenarios (Cont.) Access to 3GPP system X X X X X X X X X PS based services from WLAN Service Continuity Seamless Service Continuity Access to 3GPP system CS based Services with seamless mobility X 3G services over WLAN • • • • • • • • • SMS MMS Presence IMS LCS MBMS MexE OSA UE Management (UEM) Simplified WLAN Network Model Intranet / Internet 3GPP Network WLAN UE WLAN Access Network (with or without an intermediate network) 3GPP AAA Server Packet Data GW WLAN3GPP IP Access 3GPP PS services (including access to internet) Network Advertising and Selection Scenario 3GPP Home Network 3GPP Visited Network #1 3GPP Visited Network #2 WLAN AN UE 3GPP Visited Network #n Network Advertising and Selection Scenario (Cont.) 3GPP Home Network 3GPP Visited Network #1 3GPP Visited Network #2 WLAN AN#1 3GPP Visited Network #n WLAN AN#2 UE WLAN AN#n Non-roaming reference model 3GPP Home Network Ww Wn WAG D' HLR r' G / Wo Wm Offline Charging System Wf OCS Wp WLAN 3GPP IP Access Wu Wz 3GPP AAA Server Wg WLAN Access Network Wx Dw Wa WLAN UE HSS SLF Wy Intranet / Internet PDG Wi Roaming reference model Intranet / Internet 3GPP Visited Network 3GPP AAA Proxy Wa WLAN Access Network WLAN Ww UE Wf Offline Charging System Wg WAG Wp 3GPP AAA Server Wo HSS HLR W f Wy OCS Wz Wi Packet Data Gateway m SLF r' G W Dw Wx / D' Wu WLAN 3GPP IP Access Wd Wn 3GPP Home Network Offline Charging System Roaming reference model (Cont.) 3GPP Visited Network 3GPP AAA Proxy Wg Wn Wp WAG WLAN 3GPP IP Access Wi Wu Packet Data Gateway Wz Offline Charging System Wd WLAN Ww UE f Wm WLAN Access Network W Wa Intranet / Internet HSS Dw Wx ' D' / Gr HLR Wf Offline Charging System 3GPP AAA Server Wo SLF OCS 3GPP Home Network Protocol stack between the WLAN UE and PDG WLAN UE WLAN AN WAG Remote IP PDG Remote IP Tunneling layer Tunneling layer Transport IP Transport IP Transport IP Transport IP Transport IP Transport IP L2/L1 L2/L1 L2/L1 L2/L1 L2/L1 L2/L1 L2/L1 I-WLAN and VPLMN Selection Procedure WLAN UE WLAN AN 1. WLAN AN connection establishment 2. Start Access Authentication with a NAI 3. VPLMN advertisement 4. Access Authentication procedure 3GPP AAA Server/Proxy WLAN Access Authentication and Authorization WLAN UE WLAN AN 3GPP AAA Server HSS/HLR 1. WLAN ConnectionSetup 2. Necessaryamountof EAP Request& EAP ResponsemessageexchangesbetweenUE and 3GPP AAA Server as specifiedin the utilisedEAP type 3. AuthenticationInfo retrievalfrom HSS if info not yet available in 3GPP AAA server 4. Subscriberprofile retrieval from HSS if info not yet available in this 3GPP AAA server 5. Policyenforcementinfo delivery 6. Access Accept 7. EAP/Success [keyingmaterial and authorisation information within message] 8. AccountingStart 9. Validate the new session 10. WLAN Registrationto HSS if WLAN usernot yet registeredto this 3GPP AAA Server WAG WLAN Session Authentication and Authorization WLAN 3GPP AAA Proxy 3GPP AAA Server EAP authentication is initiated between UE and WLAN 1. Wa: Access_Request (EAP Response/Identity(NAI)) 2. Wd: Access_Request (EAP Response/Identity(NAI)) 3. Wd:Access_Challenge (EAP Request) 4. Wa: Access_Challenge (EAP Request) 5. Wa: Access_Request (EAP Response) 6.Wd: Access_Request (EAP Response) 2N Wd: Access_Accept (EAP Success, Authorization Info, Session Keying Material) 2N Wa: Access_Accept (EAP Success, Authorization Info, Session Keying Material) EAP/AKA Procedure UE WL AN AN 3 GP P A AA -serv HSS / HLR 1. 2 . EA P Re qu est/Id en tity 3. EA P Resp on se /Identity [NAI b ased o n a pseudo nym or IMSI] 4. 5 . EA P Response/Ide ntity [NA I based on a pseu do nym or IMS I] 6. 7 . E AP R eq uest/AKA- Ide ntity [Any id entity] 8. EA P Request/AKA -Id entity [Any ide ntity] 9. EA P Resp on se /AKA -Id entity [Iden tity] 1 0. EAP Re sp on se /AKA -Id entity [Identity] 1 1. 12 . 1 3. E AP Req uest/AKA- Ch all eng e [RA ND, AUTN, MA C, Pr otected { pse udon ym, Ne xt r e- auth i d }, Resul t ind ] 1 4. E AP R eq uest/AK A- Chall en ge [RA ND, AUTN, MA C, Pr otected pseu do nym, Next re- au th id, Result ind ] 15 . 1 6. E AP Response/A KA-Challe ng e [RE S, M AC, Resu lt in d] 1 7. E AP Respon se /A KA -Cha lle nge [NAI b ased o n a pseudo nym or IMSI] 4. 5 . EA P Response/Ide ntity [NA I based on a pseu do nym or IMS I] EAP/AKA Procedure 6. 7 . E AP R eq uest/AKA- Ide ntity [Any id entity] 8. EA P Request/AKA -Id entity [Any ide ntity] 9. EA P Resp on se /AKA -Id entity [Iden tity] 1 0. EAP Re sp on se /AKA -Id entity [Identity] 1 1. 12 . 1 3. E AP Req uest/AKA- Ch all eng e [RA ND, AUTN, MA C, Pr otected { pse udon ym, Ne xt r e- auth i d }, Resul t ind ] 1 4. E AP R eq uest/AK A- Chall en ge [RA ND, AUTN, MA C, Pr otected pseu do nym, Next re- au th id, Result ind ] 15 . 1 6. E AP Response/A KA-Challe ng e [RE S, M AC, Resu lt in d] 1 7. E AP Respon se /A KA -Cha lle nge [RE S, MAC, Res ult in d] 18. 1 9. EAP -Request/A KA- Noti ficati on [Se ccess notifica tion] 20. E AP -Request/AK A- No tifica tion [Seccess n otifica tio n] 21. EAP -Req ue st/AKA-Notifi cation 22. EAP-Re quest/A KA -Notification 23. EAP Su ccess + keying material 24. E AP S ucce ss 25. EAP/SIM Procedure WLAN AN AN UE 3GPP AAA-serv AAA HSS/ HLR HLR 1. 2. EAP Request/Identity 3. EAP Response/Identity [NAI based on a pseudonym or IMSI] 4. 5. EAP Response/Identity [NAI based on a pseudonym or IMSI] 6. EAP Request/SIM Start [Any identity] 7. EAP Request/SIM-Start [Any identity] 8. EAP Response/SIM-Start [Identity, NONCE_MT] 9. EAP Response/SIM-Start [Identity, NONCE_MT] 10. 10. 11. 12. EAP Request/SIM-Challenge [RAND, MAC, Protected { pseudonym, Next re-auth id }, Result ind] 13. EAP Request/SIM-Challenge [RAND, MAC, Protected pseudonym, Next re-auth id, Result ind] 14. 15. EAP Response/SIM-Challenge [MAC, Result ind] 16. EAP Response/SIM-Challenge [MAC, Result ind] 4. 5. EAP Response/Identity [NAI based on a pseudonym or IMSI] EAP/SIM Procedure 6. EAP Request/SIM Start [Any identity] 7. EAP Request/SIM-Start [Any identity] 8. EAP Response/SIM-Start [Identity, NONCE_MT] 9. EAP Response/SIM-Start [Identity, NONCE_MT] 10. 10. 11. 12. EAP Request/SIM-Challenge [RAND, MAC, Protected { pseudonym, Next re-auth id }, Result ind] 13. EAP Request/SIM-Challenge [RAND, MAC, Protected pseudonym, Next re-auth id, Result ind] 14. 15. EAP Response/SIM-Challenge [MAC, Result ind] 16. EAP Response/SIM-Challenge [MAC, Result ind] 17. 18. EAP Request/SIM/Notification [Success notification] 19. EAP Request/SIM/Notification [Success notification] 20. EAP Response/SIM/Notification 21. EAP Response/SIM/Notification 23. EAP Success 22. EAP Success + keying material 24. 24 25 EAP AKA fast re-authentication WLAN AN UE 3GPP AAA -serv 1. EAP Request/Identity 2. EAP Response/Identity [Re -auth. id] 3. EAP Response/Identity [Re -auth. id] 4. EAP R equest /AKA -Reauthentication [Counter, NONCE, MAC, Protected Next re auth. Id, Result ind ] 5. EAP R equest /AKA -Reauthentication [Counter, NONCE, MAC, Next re -auth. Id, Result ind ] 6. EAP Response/AKA - Reauthentication [Counter, MAC, Result ind ] 7. EAP Response/AKA -Reauthentication [Counter, MAC, Result ind ] 9. EAP - Request/AKA -Notification [Success notification , Counter ] 8. EAP - Request/AKA -Notification [Success notification , Counter ] 10. EAP -Response/AKA -Notification 11. EAP -Response/AKA -Notification 12. EAP Success + keying material 13. EAP Success HSS/ HLR EAP SIM Fast re-authentication WLAN AN UE 3GPP AAA-serv 1. EAP Request/Identity 2. EAP Response/Identity [Re-auth. id] 3. EAP Response/Identity [Re-auth. id] 4. EAP Request/SIM/Re-authentication [Counter, NONCE, MAC, Protected Next re -auth. Id, Resultind] 5. EAP Request/SIM/Re-authentication -auth. Id, Resultind] [Counter, NONCE, MAC, Next re -authentication 6. EAP Response/SIM/Re [Counter, MAC, Resultind] -authentication 7. EAP Response/SIM/Re [Counter, MAC, Resultind] 8. EAP-Request/SIM/Notification [Success notification, Counter] 9. EAP-Request/SIM/Notification [Success notification, Counter] 10. EAP-Response/SIM/Notification 11. EAP-Response/SIM/Notification 12. EAP Success + keying material 13. EAP Success Subscriber Profile Update WLAN UE WLAN AN 3GPP AAA Server HSS 1. User is registered to a 3GPP AAA server 2. User subscription is modified in HSS 3. Wx "Subscriber Profile" procedure 4. Access authorisation information is updated to the WLAN Access and service Authorization information update procedure WLAN AN WAG PDG 3GPP AAA Server HSS 1. User is registered to a 3GPP AAA server 2. User’s service subscription is modified in HSS 3. Wx "Subscriber Profile" procedure 4. Access authorisation information is updated to the WLAN 5. Service Authorisation info is updated to the PDGs 6. Filtering policy information update to WAG W-APN resolution and Tunnel establishment WLAN UE WLAN AN WAG 3GPP AAA Server/Proxy Visited PDG 3GPP AAA Server Home PDG 1. WLAN Access Authentication and Authorization and WLAN UE local IP address allocation 2. W-APN resolution and tunnel establishment to PDG in Visited PLMN 2.1 DNS query: 2.3 Retrieving Authentication and Authorization data 2.2 End-to-end tunnel establishment 2.4 Tunnel packet flow filter exchange 3. W-APN resolution and tunnel establishment to PDG in Home PLMN 3.1 DNS query: 3.2 End-to-end tunnel establishment 3.4 Tunnel packet flow filter exchange 3.3 Retrieving Authentication and Authorization data WLAN shared by multiple ISPs and PLMNs Other ISPs or PLMNs PLMN UE WLAN Access Network Wn Wi WAG Site to site layer 2 tunnel PDG Internet Traffic routing based on the use of VLANs in the WLAN AN Traffic from UE1 placed onto VLAN2 and routed via BR1, VPLMN1 to the PDG WLAN AN VLAN1 BR1 UE1 AP1 VLAN2 VPLMN1 InterPLMN network INTERNET UE2 HPLMN AP2 PDG VPLMN2 BR1 Routing advertisement with PDG address or prefix UE3 Applies firewall rules/policies to block traffic to e.g. GSNs. Traffic from UE3 placed onto VLAN2 and routed via BR2, VPLMN2 to the same PDG DNS controlled reverse NAT procedure WLAN UE AP DHCP Server Local WLAN Name Server WAG (Name Server/NAT) HPLMN Name Server 1. EAP based WLAN access authentication 2. VPLMN selection Routing to/from WAG based on address prefix allocated to WAG Operator Roaming Network 3. Get IP addr, local DNS server and default router 4. DNS request for W-APN FQDN 5. Forward request to VPLMN name server 6. Forward request to HPLMN name server 7. Resolve W-APN FQDN 8. Respond with address record of W-APN 9. Change address in record to an address hosted by the WAG and store this mapping 11. Respond with address record 10. Respond with address record 12. WLAN UE establishes tunnel to address contained in address record, which is changed in WAG AAA Server WLAN AN connected to a single ISP Internet PLMN UE ISP back born network Layer 2 WLAN connection Access Access router Network Wn Layer 3 connectivity Wi WAG PDG Internet Architecture for support of SMS SM-SC SME HSS / (HLR) / HSS C GMSC / SMS-IWMSC E’ or Gd’ Gd E MSC SGSN IP-SM-GW ?? UE UE SMS delivery to IP terminal SM-SC SMS-GMSC 1 Message transfer HLR/HSS IP-SM-GW UE 2 Send routing msg for short message 3 Forward short message 4a SMS Notification Request 4b Notification Acknowledgement 5 Message transfer 6 Delivery report 7 SM delivery report status 8 Delivery report SMS origination from IP terminal SM-SC SMS-IWMSC HLR/HSS IP-SM-GW 1 Message transfer 2 Forward short message transfer 3 Message transfer 4 Delivery report 5 Delivery report 6 Delivery report WLAN-UE Complete SMS call flow with WLAN interworking SM-SC SMS-IWMSC HLR/HSS IP-SM-GW PDG WLAN-UE 1 Tunnel establishment 2 Registration to IP-SM-Gateway 3 Message transfer 4 Forward short message transfer 5 Message transfer 6 Delivery report 7 Delivery report 8 Delivery report PDG implementation re-using GGSN functionality Wm Wp Wu PDG Tunnel Termination Gateway Gn’ Gi / Wi Subset of GGSN functions Mapping between E2E tunnel and GTP tunnel PDG WLAN UE Wu TTG PDG Gn Gn’ GGSN subset GGSN DHCP Gi / Wi Radius 3GPP PS Services WLAN UE One-to-one mapping between each end-to-end tunnel and a corresponding GTP tunnel. Application Application Servers Servers Tunnel establishment procedure UE WLAN AN WAG 3GPP AAA Proxy/Server TTG GGSN WLAN Access Authentication and Authorication and WLAN UE local IP address allocation DNS Query 1. E2E Tunnel establishment request 2. Retrieving authentication and authorization data 3. Create PDP context request 3. Create PDP context response 4. E2E Tunnel establishment ack 5. Apply packet filter policy to the WAG Non Roaming Reference Model 3GPP Home Network SLF Intranet / Internet HSS HLR Ww Wg WLAN UE Wn WAG /G r' D' CGF Wo OCS Wm Wp WLAN 3GPP IP Access Wu PDG Wz WLAN Access Network 3GPP AAA Server Wf Wy Wa Wx Dw CDF Wi Roaming reference model Intranet / Internet 3GPP Visited Network 3GPP AAA Proxy Wa WLAN Access Network WLAN Ww UE Wf CDF Wg WAG SLF Wp Dw 3GPP AAA Server Wo HLR Wy OCS Wi r' Wf Packet Data Gateway HSS /G Wm Wx D' Wu WLAN 3GPP IP Access Wd Wn Wz 3GPP Home Network CDF CGF Roaming reference model Intranet / Internet Wu Wf Wz CDF CGF Wd Packet Data Gateway Wi WAG Wp 3GPP AAA Proxy WLAN 3GPP IP Access Dw 3GPP AAA Server SLF W x D' /G Wf Ww 3GPP Visited Network Wa Wn Wg Wo WLAN UE WLAN Access Network HSS r' OCS CDF 3GPP Home Network HLR WLAN offline charging architecture 3GPP Home Network Bw Billing Domain CGF Ga PDG Wz CDF Wf 3GPP AAA Server WLAN Access Network Wa OFFLINE CHARGING Wd 3GPP Visited Network Bw CGF WLAN Access Network Billing Domain Ga CDF Wf Wz OFFLINE CHARGING 3GPP AAA Server PDG Wa WLAN online charging architecture 3GPP Home Network WLAN Access Network PDG 3GPP AAA Server Wd WLAN Access Network Wy Wo OCS 3GPP Visited Network 3GPP AAA Proxy ONLINE CHARGING Offline Charging Accounting Requests 3GPP Visited Network WLAN AN Wa: Radius UE Access Device Wd: Diameter or Radius AAA Proxy 3GPP Home Network AAA Server Acct. Request Acct. Request Acct.Response Radius / Acct.Response Diameter Server Radius Server Translatio n Agent Wf: Diameter Visited CDF Optional Translati on Agent Wf: Diameter Acct. Request Acct.Response Home CDF Online Charging AA-Requests 3GPP Visited Network WLAN AN Wa: Radius AAA Proxy AA Request UE Access Device AA Response Radius Server Diameter EAP based Applicatio n Wd: Diameter AA Request AA Response 3GPP Home Network AAA Server Diameter EAP based Applicatio n Diameter Credit Control Applicatio n Wo: Diameter CCA Request CCA Response Home OCS Charging Procedure for Online Charged Subscribers Unlicensed Mobile Access (UMA) UMA Briefing • Provides access to GSM and GPRS mobile services over unlicensed spectrum technologies, including Bluetooth and 802.11 • Service providers can enable subscribers to roam and handover between cellular networks and public and private unlicensed wireless networks using dual-mode mobile handsets • With UMA, subscribers receive a consistent user experience for their mobile voice and data services as they transition between networks • Open specifications (3GPP standards), June 19, 2005 UMA Participating Companies • • • • • • • • • • • • • • Alcatel British Telecom Cingular Ericsson Kineto Wireless Motorola Nokia Nortel Networks O2 Research in Motion Rogers Wireless Siemens Sony Ericsson T-Mobile US UMA Architecture UMA Functional Architecture 3G Reference Model UMAN UMA Functional Architecture Up Signaling Protocol Architecture for CS Domain Up interface L1/L2 options MS CS domain Signaling Architecture Up GSM Speech Bearer Protocol Architecture MS Architecture to support Speech Up GPRS Signaling Architecture MS GPRS Architecture Up GPRS User Plane Protocol Architecture UMA Security Mechanisms Discovery & Registration EAP-SIM authentication procedure Mobile Originated Speech Call Mobile Terminated Speech Call Handover to UMAN Handover to GERAN Triggering of UL Quality Indication Activation of URLC Transport Channel URLC state NW Initiated URLC Transport Channel Activation User Plane Data Transport Signalling Plane Data Transport Packet Paging for GPRS Packet Paging for CS Service Downlink Flow Control Uplink Flow Control UMA to UMA handover Session Management 3GPP2 Perspectives Interworking model 3GPP2 Architecture Intra PDSN Handover Inter PDSN Handover Reference model for WLAN Interworking Scenario 3 Reference model for WLAN Interworking Scenario 4 802.21 Perspectives IEEE 802.21 Briefing • IEEE 802.21 is developing standards to enable handover and interoperability between heterogeneous network types including both 802 and non 802 networks MIH Function Location and Key Services 802.21 Logical Reference Model General MIH Reference Model MIH Reference Model for 802.11 MIH Reference Model for 802.16 MIH Reference Model for 3GPP MIH Reference Model for 3GPP2 MIH Reference Model for Multimode MIH Interface Link Events Remote Link Events Remote MIH Events Remote Link Events Remote MIH Events WiMAX Forum Perspectives WiMAX-3GPP Interworking (NonRoaming Case) Loosely-Coupled Interworking of WiMAX with 3GPP2 DSL Reference Architecture WiMAX IEEE 802.16 FWA Deployment in a DSL Network WiMAX Integration with DSL Services WiMAX Integration with DSL Access Networks 異質無線網路整合與漫遊技術 與實驗平台介紹 1 1.1 1.2 1.3 1.4 1.5 1.6 2 2.1 2.2 2.3 2.4 2.5 2.6 3 3.1 3.2 Introduction to heterogeneous wireless network integration, inter-working, roaming, and handover Motivations Categories of integration and inter-working Categories of roaming Categories of handover (hard, soft, softer, vertical, horizontal, …) System architecture overview Technologies overview System architectures of heterogeneous wireless network integration and inter-working FMC/NGN model IETF model 3GPP model 3GPP2 model WiMAX Forum model IEEE model Application-layer technologies for roaming and seamless handovers AAA roaming issues SIP mobility 4 Network layer technologies for seamless handovers 4.1 IETF model 4.1.1 Mobile IPv4 4.1.2 Mobile IPv6 4.1.3 Advanced Mobile IP technologies (Handover optimization) 4.1.4 SCTP 4.1.5 Multi-homing 4.1.6 IETF WGs and activities for heterogeneous wireless network integration and handover 4.2 3GPP2 model 4.2.1 3GPP2-WLAN integration 4.3 3GPP model 4.3.1 3GPP-WLAN integration 4.4 WiMAX forum model 4.4.1 WiMAX-3GPP integration 5 Medium access layer technologies for seamless handovers 5.1 3GPP UMA(Unlicensed Mobile Access) 5.2 IEEE 802.21 media independent handover (MIH) 6 Performance evaluation for heterogeneous wireless network integration and handover 6.1 Modeling technologies 6.2 Simulation technologies 6.3 Simulation platforms and tools Simulation results and performance analysis for heterogeneous wireless network integration 6.4 and handover Experimental Environment SIP Proxy Programmable attenuator Access point Internet Splitter Tested dual mode handset Access point Shielding Box GPRS Network External antenna GPRS Base station Control and Measurement PC Lab 1 Observe the behaviors of heterogeneous wireless network roaming Students learn how heterogeneous wireless network handover occurs, how to use these tools, and can observe handover in a lab environment. Roaming and AAA Lab 2 SIP mobility Based on the experimental environment setup in Lab 1. Students install SIP package on the portable device with multiple interface. Students can exercise the SIP mobility and evaluate its performance. Lab 3 Mobile IP Lab Based on the experimental environment setup in Lab 1. Students install Mobile IP package on the portable device with multiple interface. Students can exercise the Mobile IP and evaluate its performance. Lab 4 IEEE 802.11 Lab Based on the experimental environment setup in Lab 1. Students can exercise WLAN handover and evaluate its performance. Lab Architecture Lab Setup Thank you