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차세대 이동통신 액세스 네트웍 기술. Oct. 2004. Song Pyeong Jung ([email protected]). Topics. 1. 4. 2. 3. 5. Introduction. Seamless Mobility. Service Perspective. Access Network. R&D Areas in ETRI. Introduction (1/3). What is the IT839 Project ? ( 소스 : MIC) - PowerPoint PPT Presentation
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- 1 - 1 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
차세대 이동통신 액세스 네트웍 기술차세대 이동통신 액세스 네트웍 기술
Oct. 2004
Song Pyeong Jung([email protected])
- 2 - 2 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
TopicsTopics
IntroductionIntroductionIntroductionIntroduction1111
Seamless MobilitySeamless MobilitySeamless MobilitySeamless Mobility4444
Service PerspectiveService PerspectiveService PerspectiveService Perspective2222
Access NetworkAccess NetworkAccess NetworkAccess Network3333
R&D Areas in ETRIR&D Areas in ETRIR&D Areas in ETRIR&D Areas in ETRI5555
- 3 - 3 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
①① NG mobile comm.NG mobile comm.
②② Digital TVDigital TV
③③ Home networkHome network
④④ IT SoCIT SoC
⑤⑤ Next generation PCNext generation PC
⑥⑥ Imbedded S/WImbedded S/W
⑦⑦ Digital contentsDigital contents
⑧⑧ TelematicsTelematics
⑨⑨ Intellectual robotIntellectual robot
①① NG mobile comm.NG mobile comm.
②② Digital TVDigital TV
③③ Home networkHome network
④④ IT SoCIT SoC
⑤⑤ Next generation PCNext generation PC
⑥⑥ Imbedded S/WImbedded S/W
⑦⑦ Digital contentsDigital contents
⑧⑧ TelematicsTelematics
⑨⑨ Intellectual robotIntellectual robot
①① BcNBcN
②② USNUSN
③③ IPv6 IPv6
①① BcNBcN
②② USNUSN
③③ IPv6 IPv6
① 2.3GHz PIS
② DMB (Sat/Ter)
③ Home Network
④ Tele-matics
⑤ RFID
⑥ W-CDMA
⑦ DTV
⑧ VolP
① 2.3GHz PIS
② DMB (Sat/Ter)
③ Home Network
④ Tele-matics
⑤ RFID
⑥ W-CDMA
⑦ DTV
⑧ VolP
New Services (8)
Infrastructure (3)
Driving Engines (9)
What is the IT839 Project ? (소스 : MIC) Target : Achievement of $20,000 (IT $5,000, GNI) Driving Forces : IT839 Project
Introduction (1/3)Introduction (1/3)
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Introduction (2/3)Introduction (2/3) Infra-structure
Three Main Infra will be constructed for u-Korea around 2010
Home Automation
· 아날로그 중심
U-Korea(Knowledge-based Society)
BcN- Voice&data- Telecomm&Broadcast.- Wireline&Wireless
IPv6-Converged
-Inter-woking
USN- Thing -Thing- Person -Thing
-Via RFID
Integrated
20 million subs (2010) chips below 10 cents (2007)
Conversion to IPv6 (2010)
(High QoS & Data Rate)
New Services Driving Engines
- 5 - 5 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
Introduction (3/3)Introduction (3/3) Scope of NG Mobile Comm.
Vision and Target of NG R&D in ETRI
Vision & MissionTo Achieve the Ubiquitous Service Environments for u-Korea
To Pursuit the Global Leading R&D Institute in IT Research Fields
Target To Provide Commercial WiBro Service in 2006
To Build up a Initial 4G Testbed System in 2007
Target To Provide Commercial WiBro Service in 2006
To Build up a Initial 4G Testbed System in 2007
Service & System•Vision and Service •Mobile Terminal Platform •Mobile Ad-hoc Networking•SDR Technologies•PIS as a pre-4G technology
Service & System•Vision and Service •Mobile Terminal Platform •Mobile Ad-hoc Networking•SDR Technologies•PIS as a pre-4G technology
Access Network IPv6 based Access Station Multi-mode Base Station Access Managers to supportE2E QoS, Inter-system Mobility etc
Access Network IPv6 based Access Station Multi-mode Base Station Access Managers to supportE2E QoS, Inter-system Mobility etc
Radio Technologies •HMm RF/Modem •HPi RF/Modem•Advanced W-LAN•MIMO/SA•RFID, Ad-hoc, Sensor •etc
Radio Technologies •HMm RF/Modem •HPi RF/Modem•Advanced W-LAN•MIMO/SA•RFID, Ad-hoc, Sensor •etc
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Multimedia
Service
Seamless MobilityUbiquitous Service
1G 2G 3G 3.5G 4G
Mobile Telephony
Human-to-Human messaging
Human-to-machine multimedia
communication
Thing-to-Thingbroadband & converged rt m
ultimedia services
Voice
- Multimedia Message
- LBS
- Wireless Internet
- Download(Bell Sound)
- Video Streaming- Mobile TV
Service Evolution : 1D (telephony) 3D (rt mm)
Evolution of Mobile ServicesEvolution of Mobile Services
- 8 - 8 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
System and Service of B3G still not defined B3G will be a service-driven and a human-oriented system
Define B3G service as a 3D model with three different levels : Service Level 3 (8 categories): Service Areas categorizing SL2 Service Level 2 (32 services) : Appl. Services utilizing SL1 Service Level 1 (31 technologies): Network Functions (&Features)
SL3
SL1
SL2V
oice
Web
ITS
Communication
Business
Life
QoSHandover
Security
Framework of B3G ServicesFramework of B3G Services
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Mobility/Traffic Business/Commerce
Communication Life
Leisure/Games
Telemedicine/Health
Broadcasting/weather/Public
Emergency/Disaster
① Voice
② moving picture
③ web browsing
④ Messaging etc(5)
⑤ Navigation
⑥ context-aware
⑦ positioning based guidance
⑧ Etc(5)
⑩ Management/reservation
⑪ mobile payment
⑫ mobile advertisement
⑬ Etc(6)
㉜ Remote control
Service(1) ㉖ VoD
㉗ situation adaptive
㉘ multimedia
㉙ Chatting
㉚ etc(5)
⑯ Intelligent agent
⑰ monitoring
⑱ remote education etc(4)
⑳ ITS (traffic signaling, alarm)
㉑ mobile control center
㉒ Satellite etc(3)
㉓ A pay broadcasting
㉔ emergency news
㉕ electronic voting etc(3)
Level 1: Service Pools(31 items)
Real time A/V streaming, VoIP, Handover, data transmission, profile transmission, multimedia download, multi-call/multi-session, request/answer type, authentication and authorization, context-based push, multimedia information broadcasting, location aware, location tracking, profile processing, network selection, mobile payment, ad hoc communication between user equipments, information/situation informing, user preference management, information security, sensor awareness, personal credit certification, equipment awareness, language and image processing, virtual home environment, trans-coding, codec download, channel QoS management, alarming, automatic formulation of a closed user group, anonymity guaranty.
SL 3 (8 categories)
SL 2 (32 services)
SL 1 (31 tech.)
Multi-level Services of B3GMulti-level Services of B3G SL3 : Mobility SL2 : Navigation, context-aware SL3 : Downloading, Location-tracking, User-profile-handling technologies
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Concept of 3D Service ( 소스 : ETSI) Enabling a Always best connection in terms of cost or quality Simultaneous Usage in Converged Access Networks Flexible Combination Usage of Service :
• (1Ser, 1Sys, 1 Op) - classical cellular• (2Ser, 2Sys, 1 Op) - cooperative• (1Ser, 1Sys, 0 Op) - classic Ad hoc
System
Operator
Service
Voi
ce
Web
ITS
Sys-A
Sys-B
Sys-C
Oper-cOper-b
Oper-a
Space of simultaneous use - classical Ad hoc use -
Different bearer services supported by different systems
Concept of 3D ServiceConcept of 3D Service
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Technical Trends of Access Network Examples of Access Network
Flarion/f-OFDM (USA) ETSI/IST (EU) IP2 (Japan)
Access Network- 기술 동향과 개발 사례 -
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Trends of IP Access Network (2/2)Trends of IP Access Network (2/2)
1G : Analog Access Network 2G : Digital Access Network 3G : Digital Composite AN to Support Ckt and Pkt simultaneously B3G : IP-based Open Multimedia Access Network
Evolution of Mobile Access Network from Evolution of Mobile Access Network from Generation AspectsGeneration AspectsEvolution of Mobile Access Network from Evolution of Mobile Access Network from Generation AspectsGeneration Aspects
ATM/IP Transport RAN : Introduction of IP Tech. outside AN (AN-CN) IP Transport RAN : Introduction of IP Tech. inside AN Open/Distributed IP RAN : Introduction of All-IP
Evolution of Mobile Access Network from Evolution of Mobile Access Network from Technology AspectsTechnology AspectsEvolution of Mobile Access Network from Evolution of Mobile Access Network from Technology AspectsTechnology Aspects
Short-term : Independent AN by each Operator/Service (Interworking-level) Mid-term : CN-centric AN (each AN as it is) Long-term : AN-centric /Converged AN with Open & Distributed Architecture
Evolution of Mobile Access Network from Evolution of Mobile Access Network from Architectural AspectsArchitectural AspectsEvolution of Mobile Access Network from Evolution of Mobile Access Network from Architectural AspectsArchitectural Aspects
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Trends of IP Access Network (2/2)Trends of IP Access Network (2/2)
RNC
RRM
IubIub
Iu
Po int-to -po int AT M C oncentration
Current
R99/R4
IP R outing IP T ransport Po int-to -po int N ode B L ink
IP transport RAN
R5/R6?
IP T ra ns po rt N e tw o rk
Iub Iub
N ode B R e-parenting R N C D istributed R R M
IP RAN
R?
IP N e tw o rk
Iu
Iub Iub
Aggregation
N ode B
RNC: Radio Network Controller RRM: Radio Resource Managem ent
Node B
RNC
RRM
Iu
RNC
RRM
Iu
CallServer
O&M
RRM
VocoderPool
LocationServer
N ode B
Node B
3G 3.5G 4G
A ll IP N etw ork
Current : Dedicated link with ATM IP transport RAN : Networking with IP IP RAN : IP transport RAN + Distributed functions (e.g. RNC/CN functions) Evolution towards IP-based flexible arch. from ATM-based dedicated arch.
Example of Access Network Evolution in Example of Access Network Evolution in 3GPP3GPPExample of Access Network Evolution in Example of Access Network Evolution in 3GPP3GPP
* IP based RAN ? IP –infra based open arch.
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Provision of cellular services by IEEE-based architecture with mobility Trial of paradigm change from CS Voice to PS Data centric architecture under
Internet environments Direct connection of f-OFDM AN to internet-infra (not via core network)
Example : f-OFDM (1/3)
f-OFDM Access Network Architecture f-OFDM Access Network Architecture – Short term– Short term (src : Flarion(src : Flarion))f-OFDM Access Network Architecture f-OFDM Access Network Architecture – Short term– Short term (src : Flarion(src : Flarion))
- 15 - 15 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
Radio Router = RF + BS (AN : BTS/BSC) + AR (subset of CN: FA/AAA/DHCP/OAM…) Field Test with Traffic Gen. : Indoor (audio, game), Outdoor (ftp) MT : Laptop computer (fMDM, intra-cell traffic, inter-cell interference) Edge Router : Aggregate Router (controlled by HA)
f-OFDM (2/3)
Radio RouterMT
F-OFDM
BS ARRF
1 2 3 460
D#
*1
B1CA7 8
95
Edge Router
IPSwitch
IETF Interface
(T1)
Servers(Game)
Servers(Audio)
GE
Radio Router
f-OFDM AN
(1.25~5 MHz)MT
F-OFDM
BS ARRF
1 2 3 460
D#
*1
B1CA7 8
95
DS3
Multiple DS1
HA
f-OFDM Test-bed Configurationf-OFDM Test-bed Configuration
- 16 - 16 / 28 정보과학회 추계학술발표대회 워크샵정보과학회 추계학술발표대회 워크샵
Situation : HO during FTP tx (serverMT)
Mobile Controlled Handoff MIP-based Make before Break FTP Download Example :
f-OFDM (3/3)f-OFDM (3/3)
f-OFDM Handover Scenario f-OFDM Handover Scenario
MT Old-RR New-RR AAA HA
Packet Switched Communication via New RR
L2 Registration
FA Advertigement(FAA)
Registration Request (RREQ) RREQ
Registration Reply (RREP) RREP
Pilot Tone Pattern
MIP Registration + PFANE (Previous FA Notification) MIP Reg+PFANEMIP Registration Response
Context Transfer Request
Context Transfer Update
Binding Update
Binding Update Response
Packet Switched Communication via Old RR(DL FTP Transfer from Server)통신(Old RR)
User 인증 / 암호화(New RR)
User 등록(New RR)
User 프로화일 Transfer
MIP 등록
Binding(New RR)
통신(New RR)
AAA-Request
AAA-Reply(Rand,L2 keys, profile)..
fwarding table(redir: del, add)
Inter-RR intf: context protocol
(add/drop)
New RR 에서 해당가입자 인증
sib(S_ID) broad
add in table
(out of domain)
Authentication & Encryption Procedures (using EAP)
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Why take multi-mode approach ! Operators own some RATs and coopera
te with other NPs of the CR infrastructure
Goals is to improve capacity and QoS levels and is to reduce cost levels
Users are assigned to best radio access networks and technology
ETSI – IST (1/2)ETSI – IST (1/2)
4G Access Network Configuration 4G Access Network Configuration – Short term– Short term (src (src : IST): IST)4G Access Network Configuration 4G Access Network Configuration – Short term– Short term (src (src : IST): IST)
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Components Terminal : Reconfigurable to support
different RATs Access Point : No Inter-working but c
onverged and reconfigurabie to support different RATs
Protocol stack : AS : indepen. low-layers by each RAT NAS : common & Flexible high-layers AP is reconfigured by Network-level Reconfi
g. Env. (config. profiles DB/ SW repositories/ recofig. Manager)
Terminal is reconfigured by TRM (Terminal Reconfiguration Manager) including (reconfig. Gateway/ config. profile DB)
ETSI – IST (2/2)ETSI – IST (2/2)Access Network Configuration Access Network Configuration
with Reconfigurable Ubiquitous Terminal with Reconfigurable Ubiquitous Terminal – Long term– Long termAccess Network Configuration Access Network Configuration
with Reconfigurable Ubiquitous Terminal with Reconfigurable Ubiquitous Terminal – Long term– Long term
Reconfig. Env.
Reconfig. BS
Reconfig. MT.
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To allocate new traffic load to Best AP, RA Coordinator provides the cordi-functions between CN and ANs.
IPIP22 has architecture to cover the mid-term and long-term
IPIP22 (1/3)(1/3) IPIP22 (1/3)(1/3)IPIP22 Arch for Composite Radio Env. – Arch for Composite Radio Env. – Mid/Long termMid/Long term (src : WWRF) (src : WWRF)IPIP22 Arch for Composite Radio Env. – Arch for Composite Radio Env. – Mid/Long termMid/Long term (src : WWRF) (src : WWRF)
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IPIP22 (2/3)(2/3) IPIP22 (2/3)(2/3)
Radio Access Coordination Architecture Radio Access Coordination Architecture (src : WWRF(src : WWRF))Radio Access Coordination Architecture Radio Access Coordination Architecture (src : WWRF(src : WWRF))
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IPIP22 (3/3)(3/3) IPIP22 (3/3)(3/3)Basic Flows of Seamless Handover (src : WWRFBasic Flows of Seamless Handover (src : WWRF))Basic Flows of Seamless Handover (src : WWRFBasic Flows of Seamless Handover (src : WWRF))
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Seamless Mobility- Overview -
BcN and B3G Basic Model of B3G Access Network Basic Scenario of Inter-system Handover B3G Testbed
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B3G Access NetworkB3G Access Network
IAD
RAN2G/3GPSTN
PBX
TGW IntegTGW
SGW
Softswitch
AGWLocalExchange
SS7 based IN STP
Integ.AGW
ApplicationServers
Wireless3.5G/4G/5G
OSS/BSSServers
WLAN AP+
ITS+
Optical BackbonePacket
Network Virtual Switch/Router
Wire/W’lessIntegratedSoft Switch
OPEN APIGateway
OPEN API
Feature/MediaServersIP-based Common
Core Network(Integ. Wire/Wireless)
Access Internet
Next Page!
BcN is a N.G. integrated network infra to support broadband multi-media services with the features of Seamless connectivity and guaranteed QoS under converged network including wire-line/wireless communication and broadcast infra in Korea.
Basic approach of BcN is similar to that of B3G; B3G a subset of BcN!
B3GB3G is a subset of BcN! is a subset of BcN! B3GB3G is a subset of BcN! is a subset of BcN!
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From Wireless Perspectives of BcN
Public Internet
Common Core Network
overlapped coverage area
BS or AP :
Gateway router
Servers
Vertical Handover
Horizontal Handover
Micro mobilityMacro mobility
B3G Access NetworkB3G Access Network
ITU-R Model of B3G Access Network ITU-R Model of B3G Access Network (src : ITU_R(src : ITU_R))ITU-R Model of B3G Access Network ITU-R Model of B3G Access Network (src : ITU_R(src : ITU_R))
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ISHO – Key TechnologiesISHO – Key Technologies
Problem (frequent handover, financial difficulties with nation-wide deployment) Phenomenon ! (Packet-loss, Packet-delay, Packet-blocking, Inter-working)
Multicast / BroadcastMulticast / Broadcast
Target Cell PredictionTarget Cell Prediction
Resource ReservationResource Reservation
QoS AdaptationQoS Adaptation
Vertical HandoverVertical Handover
Solu
tion
Solu
tion
SeamlessSeamless
TimelessTimeless
High-Data Rate/High-Data Rate/Small- Cell SizeSmall- Cell Size
High-Speed MobileHigh-Speed Mobile
HO Signaling SimplicityHO Signaling Simplicity
Multicast / BroadcastMulticast / Broadcast
Location PredictionLocation Prediction
Resource ReservationResource Reservation
QoS AdaptationQoS Adaptation
Buffering / TunnelingBuffering / Tunneling
LosslessLossless
Location-Based Fast Handoff
Vertical HandoverVertical HandoverVertical HandoverVertical Handover
Pre-Second-Tier Registration & Pre-Tunnel Session Initiationfor F-MIPv6
Dynamic Cluster HandoverAlgorithm for F-MIPv6
Lossless Handover Algorithmusing the I-TCP
Overlaid Inter-system HandoverAlgorithm
Inter-system Handover – Inter-system Handover – Real Time MultimediaReal Time Multimedia Service ServiceInter-system Handover – Inter-system Handover – Real Time MultimediaReal Time Multimedia Service Service
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Pro
ced
ure
Ra
dio
Do
ma
inIn
tern
et
Do
ma
in
Best Cell Best Cell SearchSearch
CoA AcquisitionCoA Acquisition(Sol. & Adv.)(Sol. & Adv.)
WirelessArea/WLAN(Roaming)
Target CellTarget CellSearchSearch
HO Request,HO Request,Admission_ChkAdmission_Chk
RadioRadioAccessAccess
HandoverHandoverRegistrationRegistration
MIPMIPTriggeringTriggering
CoA AcquisitionCoA Acquisition(Sol. & Adv.)(Sol. & Adv.)
MobileArea/Cellular(Handover)
MIPMIPRegistrationRegistration
QoS NegotiationQoS Negotiation(Pkt Traffic)(Pkt Traffic)
MIPMIPRegistrationRegistration
ISHO Request,ISHO Request,Adm_Chk (T-Cell)Adm_Chk (T-Cell)
RadioRadioAccessAccess
ISHOISHORegistrationRegistration
MIPMIPTriggeringTriggering
CoA AcquisitionCoA Acquisition(Sol. & Adv.)(Sol. & Adv.)
Inter-SystemArea/B3G
(R+H)
MIPMIPRegistration/Tunnel.Registration/Tunnel.
L2L2TriggeringTriggering
HandoverHandoverTriggeringTriggering
ISHO ISHO TriggeringTriggering
A.1 HandoverTriggering
A.2 Target CellEstablishment
A.3 Serving CellRelease
QoSQoSNegotiationNegotiation
Mobility Procedure
Service Service ServiceC. Service (Resume)
RadioRadioAccessAccess
SecuritySecurity(Auth&Cipher)(Auth&Cipher)
SecuritySecurity(Auth&Cipher)(Auth&Cipher)
B.1 MIP Triggering
B.3 MIP Registration
B.2 CoA Aquisition
Mobility OverviewMobility Overview
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Test-bed for B3G in ETRITest-bed for B3G in ETRI
Thru Converged AN with seamless mobility
Optimal approach to achieve the ubiquitous environmentsOptimal approach to achieve the ubiquitous environmentsOptimal approach to achieve the ubiquitous environmentsOptimal approach to achieve the ubiquitous environments
Backbone (IMT-2000) (e.g., WCDMA with SA & MIMO)
Low Tier (HPi)
IP basedIP basedCommonCommon
Core NetworkCore Network
Internet/IntranetWorld
IP based IP based HeterogeneousHeterogeneousAccess NetworkAccess Network
15~100 MbpsHigh-speed Mobile MM
TelecommunicationsWorld
100~150 Mbps High-speed Portable Internet
High Tier(HMm)
Mobile Adhoc
Network
Low Tier (Wireless LAN)(e.g., future version of 802.11)
Global ManagerGlobal Manager(Mobility, E2E QoS, (Mobility, E2E QoS,
Global Security)Global Security)
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감 사 합 니 다
ETRi ETRi 이동통신연구단 무선액세스그룹 이동통신연구단 무선액세스그룹 개방형액세스연구팀장 개방형액세스연구팀장 책임연구원 송 평 중
([email protected])(WCDMA 단말 : 010-2001-0020, CDMA 단말 : 010-9600-64045003)