IPv6 3 G / B 3 G

painlosososΛογισμικό & κατασκευή λογ/κού

30 Ιουν 2012 (πριν από 4 χρόνια και 11 μήνες)

551 εμφανίσεις

National Chiao Tung University
IPv6ﭐ 3G/B3G敏﹩
뇤
Dept. of Computer Science and Information Engineering
National Chiao Tung University, Hsinchu, Taiwan
Email : sltsao@csie.nctu.edu.tw
TEL : +886-3-571-2121 ext. 54717
http://www.csie.nctu.edu.tw/~sltsao
National Chiao Tung University
Outline
• 3G and B3G : architecture overview
• 3G and B3G : services and applications
• IPv6 meets 3G and B3G
• Summary
National Chiao Tung University
3G and B3G : architecture overview
• Evolution of wireless communication
networks
1980’ 1990’ 2000’ 2010’
1G
2G
2.5G
3G
4G
2.75G
3.5G
B3G
AMPS
NMT

GSM
IS-95
IS-136
PDC

GPRS
PDC-P

EDGE
WCDMA
cdma2000
Multi-carrier
MIMO
Smart antenna

//
New air interface
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• Evolution of wireless communication networks
(Cont.)
– 3.5G : WCDMA enhancement
• Multi-carrier
• MIMO
• Smart antenna
• …
– B3G : networking networks
• Bluetooth, WLAN, GSM/GPRS, 3G, DVB, DAB, …
– 4G : revolutionary air interface
• Up to 20Mpbs
• UWB, OFDM, …
National Chiao Tung University
• Evolution of wireless communication
networks (Cont.)
3G and B3G : architecture overview
(Cont.)
2G
2.5G
3G
2.75G
time
We are here
2.5G+WLAN
2.75G+WLAN
3.5G
3G+WLAN
3.5G+WLAN
4G
???
???
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• B3G network
– Network/operator perspectives
• Based on the existing radio access technologies
• Flexible integration of the existing networks
• Handover between different networks
• Common access control
– Users/user equipment
• Common access control
• Services and applications roaming
• Seamless handover for services and applications
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• 3G (3GPP example)
UE
3G-SGSN
3G-GGSN
RNC
Node B
MSC/VLR
GMSC
RNC
Node B
HLR
AuC
EIR
UMTS core network
UMTS core network
Node B
Node B
UTRAN
UTRAN
PSTN
PSTN
Internet
Internet
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• 3G (3GPP2 example)
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• B3G architecture
BluetoothBluetooth
IP Network
IP Network
3G3G
DAB/DVBDAB/DVB
WLAN WLAN
NetworkNetwork
GSM/GPRSGSM/GPRS
Multi mode devices
Applications & services
Integrated network support
Integrated resource management
National Chiao Tung University
3G and B3G : architecture overview
(Cont.)
• iB3G project
IP Network
IP Network
WLAN WLAN
NetworkNetwork
GSM/GPRSGSM/GPRS
WLAN
UE
WLAN AP
Base station
Cellular
UE
WLAN/Cellular
Dual Mode UE
AAA
VoIP
Messaging
eCommerce
Entertainment
P2P
Push
Streaming
Location service
National Chiao Tung University
3G and B3G : services and applications
• 3G initial stage
– Voice
– Messaging
• 3G 2nd stage
– All-IP (IP multimedia subsystem, IMS)
– Mobile instant messaging (mobile instant messaging and presence
services, IPMS)
• Seeking for new APs to increase ARPU
• 3G is good for “Mobile Data” but probably not for “Mobile
Internet Access“
– Too expensive
National Chiao Tung University
3G and B3G : services and applications
(Cont.)
• B3G
– What’s the business model ?
• B3G services types
– Common access control
– Accessing to original services and applications
– Service and application continuity
– Seamless handover
• B3G services examples
– Common AAA
– VoIP
– Mobile instant messaging
– Presence service
– Push service
• Business model is the key
National Chiao Tung University
3G and B3G : services and applications
(Cont.)
• B3G services and applications
– They benefit and compensate to each other for
technical point of view
– High mobility, low bandwidth requirement >>
GSM/GPRS/3G/…
– Low mobility, high bandwidth requirement >>
WLAN/WiMAX/…
– Join power management
– Resource optimization
– …
National Chiao Tung University
IPv6 meets 3G and B3G
• Why IPv6 ?
– Standard mandated
– Cost-effective
– Technical benefits
• When IPv6 ?
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 and 3GPP
– R99 (IPv4)
RNC
Node B
Node B
MS
MS
SGSN
Internet
PSTN
GGSN
Gi
Gn
Iu_PS
Iu CS
Signaling (SS7 or IP based)
Circuit
Packet (user traffic / signaling)
Call control function
HLR
GMSC
MSC
PSTN
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 and 3GPP
– R4 (IPv4, IPv6 optional)
RNC
Node B
Node B
MS
MS
SGSN
Internet
PSTN
GGSN
HLR
MGW
MGW
MAP
MAP Mc
Gi
Gi
Nb
Iu_CS
Control Plane
Gr Gc
Gn
Iu_PS
Iu CS
User Plane
Mc
Signaling (SS7 or IP based)
Circuit
Packet (user traffic / signaling)
Call control function
T-SGW
MSC Server
GMSC Server
Nc
IP Transport
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 and 3GPP
– R5, R6, R7 (IPv6 mandatory)
RNC
Node B
Node B
MS
MS
SGSN
Internet
PSTN
GGSN
Legacy mobile
signaling network
CSCF
HSS
MGW
MGW
R-SGW
MAP
MAP Mc
Mc
Gi
Gi
Nb
Iu_CS
Control Plane
Mh
Gr Gc
Cx
Mm
Ms
Gn
Iu_PS
Iu_CS
User Plane
Gi
Mc
MGCF
Mg
Gi
Mr
MRF
T-SGW
MSC Server
GMSC Server
Nc
Signaling (SS7 or IP based)
Circuit
Packet (user traffic / signaling)
Call control function
IMS
(IP multimedia subsystem)
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 and 3GPP2
– Simple IP/Mobile IP (IPv4)
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 and 3GPP2
– All IP (IPv4, IPv6 is recommended)
IP Multimedia Domain
RAN Domain Packet CN Domain
Legacy MS Domain
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• 3G and B3G demand
– Integrated multimedia services (QoS)
– Multi access links/multi-homed
– Always-on
– Peer-to-peer
– Flexible/convenience configurable of protocol stack
– Mobility
– Security
– Multicast
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• Why IPv4 + NAT might not be enough
– Integrated multimedia services (QoS)
• Lack of one single standard
• NAT impacts the end-to-end QoS
– Multi access links/multi-homed
• One IP one interface
– Always-on
• More IP addresses are required
– Peer-to-peer
• NAT impacts the peer-to-peer
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• Why IPv4 + NAT might not be enough
– Flexible/convenience configurable of protocol
stack
• DHCP is not secured enough
– Mobility
• Mobile IP is not widely deployed
– Security
• IPSec is not widely deployed
– Multicast
• Multicast is not widely deployed
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• IPv6 reduces management efforts
– Auto-configuration
– NATs are out of management and control
• Performance
– NAT introduces performance bottleneck
• Always-on
– More addresses are required
– facilitate push-based services
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
• Build-in security
– IPSec for E-Commerce and M-Commerce
– Secured communication and transaction
• Build-in mobility
– Mobile IPv6
• Support peer-to-peer APs
– Internet is moving from client-server to peer-to-peer
• Build-in multicast
– Messaging
• Support QoS
National Chiao Tung University
IPv6 meets 3G and B3G (Cont.)
2G
2.5G
3G
2.75G
time
We are here
2.5G+WLAN
2.75G+WLAN
3.5G
3G+WLAN
3.5G+WLAN
4G
???
???
IPv4
IPv6
IPv4/IPv6 coexisting
National Chiao Tung University
Summary
• IPv6 is a mandatory requirement in 3GPP R5 and beyond versions
• IPv6 features benefit 3G/B3G services and application development and
deployment
• Operators/ISP are still waiting
– IPv4+NAT is still a cost-effective solution so far
– Lack of IPv6 kill-ap
– infrastructure investment
• It is important know how and what kind of roles IPv6 technologies act for
3G, B3G.
• It is important to develop your own IPv6 strategies to react the dynamics
of wireless technologies
– For operators
– For AP/service provider
– For network equipment vendors
– For terminal vendors
National Chiao Tung University
Thank you !