A view of cellular network migration toward IPv6

Transcription

APRICOT2005
IPv6 Technical Session
A view of cellular network migration
toward IPv6
23 February 2005
Dr. Fumio Watanabe
General Manager,
Wireless Broadband System Development Department
"au" Technology Division, KDDI Corporation
Contents
1. Cellular Network
2. Migration Scenario and Process toward IPv6
3. Communication Services over IPv6
APRICOT 2005 IPv6 Technical session, 24 Feb, 2005, F. Watanabe
2
1. Cellular Network
History of Mobile Communication
1980s
2000s
1990s
“Emerging Era”
1st Generation
Analog
• Voice
TACS, AMPS, NMT,
NTT HighCap, etc
“Rapid Growing Era”
2nd Generation
Digital
• Voice
• Voice band Data
• SMS
GSM, PDC, IS-136,
IS-95 (cdmaOne),
DECT, PHS, etc.
IMT-2000: International Mobile Telecommunications
“Flourishing Era”
3rd Generation
Global/Multimedia
•
•
•
•
High Quality Voice
High Speed Data
Multimedia
Global Mobility
ITU-R M.1457
IMT-2000
W-CDMA, CDMA2000
Developed by 3GPP
Developed by 3GPP2
4
3GPP and 3GPP2
3GPP
3rd Generation Partnership
3GPP2
3rd Generation Partnership 2
Technology
Radio Access : W-CDMA
Core Network : Evolved GSM
Radio Access : cdma2000
Core Network : Evolved ANSI-41
Organizational
Partners
ARIB(Japan), CCSA (China),
ETSI (EU), ATIS (North America),
TTA(Korea), TTC(Japan)
ARIB(Japan), CCSA (China),
TIA (North America), TTA(Korea),
TTC(Japan)
Establishment
Dec 1998
January 1999
3GPPs
Agreement
The Partners have agreed to co-operate in the production of globally
applicable Technical Specifications and Technical Reports for a 3rd
Generation Mobile System to be transposed by the relevant
standardization bodies (Organizational Partners) into appropriate
deliverables (e.g., standards).
- Established for the preparation, approval, mentioned Technical
Specifications and Technical
- Not to be construed as a legal entity.
5
IMT-2000 Standard Evolution
Original
CDMA2000 1x
3GPP2
(CDMA2000) 144kbps data
W-CDMA
3GPP
(W-CDMA) DL 384kbps data
UL 64kbps data
Evolution 1st Step
- FL enhancement -
Evolution 2nd Step
- RL enhancement -
(Oct 2000)
1xEV-DO Rev.0
FL: max 2.4Mbps
RL: max 153.6kbps
(Apr 2004)
1xEV-DO Rev.A
FL: max 3.1Mbps
RL: max 1.8Mbps
(2003)
HSDPA Rel. 5
-DL improvement
(HSDPA)
(2004)
HSDPA Rel. 6
-UL improvement
(UPA)
DL(Down Link) = FL(Forward Link)
UL(Up Link)
= RL(Reverse Link)
6
IMT-2000 Subscriber Growth in Japan
18
12
10
31% Subscribers
already migrated
to IMT-2000,
Jan. 2005
Dec, 2002
Vodafone launch
8
Apr, 2002
KDDI launch
6
W-CDMA
monthly increase
over CDMA2000
Apr. 2004
Oct, 2001
DoCoMo launch
2
W-CDMA
Year/Month
2004/12
2004/09
2004/06
2004/03
2003/12
2003/09
2003/06
2003/03
2002/12
2002/09
2002/06
2002/03
0
2001/12
Number of Subs. (Million)
14
4
W-CDMA
CDMA2000 1x
Number of 3G Subs.
end of Jan, 2005
Total
26,958,900
au
17,115,000
DoCoMo
9,316,600
Vodafone
527,300
16
Number of
2G & 3G Subs.
85,774,700
The Telecommunications Carriers Association (TCA)
7
Mobile Internet Services
Mobile Internet Users: 86% of Mobile Phone Subscribers (Jan. 2005)
80
60
50
40
30
20
10
Year/Month
2004/12
2004/09
2004/06
2004/03
2003/12
2003/09
2003/06
2003/03
2002/12
2002/09
2002/06
2002/03
2001/12
2001/09
2001/06
2001/03
2000/12
2000/09
0
2000/06
70
Live!
EZweb
i-mode
Jan., 2005
Total
73.9
i-mode (DoCoMo) 43.2
EZweb (KDDI)
17.7
Live! (Vodafone)
13.0
The Telecommunications Carriers Association (TCA)
8
One example: KDDI (“au”) Data network and Service
Services of “PacketOne” / “PacketWIN” network
EZweb
Mobile Internet Services (WAP, e-mail, GPS...)
CPA
Internet access (Intranet / Internet)
(CDMA Packet Access)
WAP server
mail server
Location server
EZweb
Network
handset
PC + handset
the
Internet
PacketOne
PacketWIN
CPA
Radio Access
Network
IP Core
Network
Internet
Service
Provider
Enterprise
network
9
IP Mobility Support
3GPP model
Area 1
HLR
SGSN1
Gateway GPRS Support Node
H/O
GGSN
SGSN2
Area 2
IP core network
Server
Serving GPRS Support Node
New GPRS* Link
Mobile Node
*General Packet Radio Service
3GPP2 model
Area 1
AAAs
Packet Data Serving Node
PDSN1
Border
Router
H/O
PDSN2
Area 2
Mobile Node
New PPP link
IP core network
HA
Server
New Mobile IP Link
10
Cellular Data Network with IPv4
Area 1
handset
AAA
Server
Proxy
Server
PC + handset
AAA Mail
ServerServer
the
Internet
Area 2
Proxy
Server
(IPv4)
handset
Mail
Server
PC + handset
Multiple domains are required for tens of millions of subscribers
in a IPv4 Network.
11
Cellular Data Network with IPv6
handset
Area 1
AAA
Server
PC + handset
Proxy
Server
Area 2
the
Internet
(IPv6)
handset
PC + handset
Mail
Server
One domain can serve tens of millions of subscribers
in a IPv6 Network.
12
Why IPv6 for Cellular Network?
Tens of
millions of
Active
Mobile
Stations
A remedy is to
change IP addresses
frequently.
A remedy is header
compression technology.
IPv6 is a solution because it
provides abundant IP address
resources.
whose benefits are:
• Simplifying network configuration
• Capable of providing multiple IP
addresses for a device
• Capable of Providing real IP Push
services
whose concerns are:
• Attacks on global IPv6 addresses
• Larger IP Header for real time data
than IPv4
13
2. Migration Scenario and Process toward IPv6
Overview of Typical IPv6 Migration Scenario of
Cellular System
IPv6 penetration
IPv6 Access
from Cell phone
Application/Browser
(Goal)
IPv6 Access from
Mobile PC/PDA
(1st Step)
… Tunneling IPv6
Present
Native IPv6
…
(2nd Step)
Future
15
Typical IPv6 Migration Scenario of Cellular System
Cell
Phone
Capability
IP Core NW
Capability
Application Server VoIP Server
Capability
IPv4 only
IPv4 only
IPv4 only
• IPv4 is dominant.
• Cellular VoIP isn’t popular.
IPv4 only
IPv4 and
Tunneling IPv6
IPv4 only
• IPv4 is dominant.
• Native IPv6 Services for
PC/PDA
IPv4 only
IPv4 and IPv6
dual stack
Mainly IPv4
• IPv6 access becomes popular..
Goal
IPv4 and
IPv6 dual
stack
IPv4 and IPv6
dual stack
IPv4/IPv6
• Cellular VoIP becomes popular.
Present
• Cellular network
doesn’t support IPv6.
1st Step
• Tunneling IPv6 services
for PC/PDA
2nd Step
• IPv6 Services for cell
phone application
16
Typical IPv6 migration scenario of cellular
System (cont.)
Present
Tunneling node is
located outside of
cellular network.
IPv6 Communication
Tunneling
Tunneling
Cellular IP Network
IPv6 Appli.
(IPv4)
Node Server (IPv6)
Tunneling Client
1st Step
Tunneling node is
located in cellular
network.
IPv6 Communication
Tunneling
Tunneling
Cellular IP Network
(IPv4)
IPv6 Appli.
Tunneling Client
2nd Step
IP nodes supports
IPv4/v6 dual stack.
IPv6 NW
Node
Server (IPv6)
IPv6 Communication
IPv6 NW
Cellular IP Network
IPv6 Appli.
(IPv4/IPv6 Dual)
Server (IPv6)
IPv6 Communication
Goal
Cell Phone supports
IPv6 stack.
IPv6 NW
Cellular IP Network
IPv6 Appli.
(IPv4/IPv6 Dual)
Server (IPv6)
17
KDDI’s Action at the present
“ISATAP” Field Trial
ISATAP(Intra-Site Automatic Tunnel Addressing Protocol)
- Open to “au.net” users (KDDI’s mobile Internet service)
- No registration required
- No extra IPv6 charge (Only access charge for au.net)
Commercial
“au” network
KDDI
IPv6 network
IPv4 network
(3) IPv6 communication
ISATAP
Router
(1) Connect to au.net
(2) Setup ISATAP
going outside
IPv6 remote
access from outside
IPv6 Internet
http://www.isatap.jp
18
KDDI’s Action for 1st Step
KDDI
KDDIis
isin
incharge
chargeof
ofCellular
CellularAccess
Accessin
inthe
theISP/Access
ISP/Access
Segment
Segmentof
ofthe
theIPv6
IPv6Deployment
DeploymentField
FieldTrial.
Trial.
Field
Fieldverification
verificationtest
testis
isbeing
beingcarried
carriedout
outin
inorder
orderto
to
create
createnew
newlife
lifestyles
stylesthrough:
through:
--Remote
Remoteaccess
accessto
toIPv6
IPv6home
homenetwork
network
--Remote
Remoteaccess
accessto
toIPv6
IPv6intranet
intranet
The IPv6 Deployment Field Trial
is a real-life experiment for switching to
an IPv6-based Internet under Project
sponsored by the Ministry of Internal
Affairs and Communications.
http://www.v6trans.jp
19
Mobile Access in the IPv6 Deployment Field Trial
- Overview --IPv4/IPv6
-DO network
IPv4/IPv6Access
Accessthrough
through2GHz
2GHzEV
EV-DO
networkininTokyo
Tokyo
--CF
type
cellular
device
for
PDA
and
PCMCIA
type
for
CF-type cellular device for PDA and PCMCIA-type forMobile
MobilePC
PC
--Support
of
Multiple
ISPs
Support of Multiple ISPs
--One
OneIPv4
IPv4address
addressand
andone
oneIPv6
IPv6address
addressare
areassigned
assignedtotoaaMobile
MobilePC
PCor
oraaPDA
PDA
Enterprise
Network
2GHz EV-DO
Network
Internet
Service
Provider
Intranet
Home
Receiving
Receivingsales
sales
information
information
from
fromoutside
outside
Watching
Watching
their
theirhome
home
from
outside
from outside
A family
At work
20
KDDI’s action for the 2nd step
Trial development of IPv4/v6 dual stack PDSN(Packet Data Serving Node)
• PDSN is supporting IPv4 Foreign Agent(FA) function.
• PDSN is supporting IPv6 simple IP function.
PDSN
(IPv4/v6)
FAv4
IPv6
Home Network
IPv4/v6
Dual Stack MN
Cellular Backbone
IPv4/v6 Network
IPv4/v6
Dual Stack MN
PPP Link
Mobile IPv4 Tunnel
IPv4 Session
IPv6 Session
HAv4
IPv4
Home Network
21
3. Communication Services over IPv6 (Goal)
All IP Standard for Cellular System
- 2001
2002
2003
2004
2005
2006 -
CDMA2000 Family (3GPP2)
cdma2000
Circuit Network
Evolution/Overlay
All IP
Harmonization
Meeting
IMS
Rel 4
GSM
Circuit Network
MMD
Rel 0
MMD
Rel A
Compatible
IMS
Rel 5
MMD
Rel B
Compatible
IMS
Rel 6
Evolution/Overlay
UMTS Family (3GPP)
Backward
Compatible
IMS
Rel 7
LMSD: Legacy Mobile Station Domain
MMD: Multimedia Domain
IMS: IP Multimedia Subsystem
IMS was originally developed on the IPv6 network.
Although IMS/IPv4 was optionally added on the Rel. 6, IMS/IPv6 will be the goal.
23
MMD / IMS
Features of MMD (MultiMedia Domain) / IMS(IP Multimedia Subsystem)
• Providing Multi-Media services on “ALL IP” network
• No support of legacy circuit based RAN(Radio Access Network)
• SIP (Session Initiate Protocol ) for call processing
• No support of legacy mobile stations, but SIP user agents
• Always on the Network for every mobile station
MMD
PLMN
PSTN
HLR
MSC
Circuit Switch
AAA
Circuit Switching
network
A1/A2
MSC
Circuit Switch
MG/SG
A10A11
MSC
Circuit Switch
IP Packet Network
RAN
PDSN
AAA
MGCF
MRFC
HA
VoIP/Data
MMS Server BCMCS Server
IP Packet Network
Legacy MS.
CSCF
PDSN
RAN
A01A11
HA
PLMN
PSTN
Internet
PTT Server
Video Conference Server
Internet
Service Servers
SIP Client
MGCF(Media Gateway Control Function)
MRFC(Media Resource Function Control)
CSCF(Call Session Control Function): SIP Server
MG(Media Gateway)
SG(Signaling Gateway)
24
3GPP ALL IP Architecture Model
CS-domain
MSC
Server
GMSC
Server
MGW
MGW
ISDN
ISDN
PSTN
PSTN
GGSN
Internet
Internet
Intranet
Intranet
Radio Access
Network
IP
Backbone
SGSN
PS-domain
MRF
HSS
HSS: Home Subscriber Subsystem
CSCF: Call State Control Function
IMS
(e.g. SIP server)
IP Multimedia
MRF: Multimedia Resource Function
Subsystem
MGW: Media Gateway
MGCF: Media Gateway Control Function
T-SGW: Transport Signalling Gateway
IPv6
SGSN: Serving GPRS Support Node
mandatory
GGSN: Gateway GPRS Support Node until Release 5
CSCF
T-SGW
MGCF
Application Servers
User data & Control
Control
25
3GPP2 ALL IP architecture model
Legacy MS
Domain
MSC
Server
AGW
MGW
HLR
Radio Access
Network
IP
Backbone
ISDN
ISDN
PSTN
PSTN
HA
Border
Router
MRF
CQM
AGW: Access Gateway
SCM: Session Control Manager
T-SGW: Trunk Signalling Gateway
CQM: Core Quality of Service Manager
SQM: Subscription Quality of Service Manager
DB: Databases
MGCF
AAA
SQM
Databases
Internet
Internet
Intranet
Intranet
T-SGW
SCM
IP Multimedia
Domain
Applications
Either
IPv4 or IPv6
User data & Control
Control
26
Harmonization with Fixed Network
- 2003
3GPP
IMS
Rel 4
2004
IMS
Rel 5
IMS
Rel 6
ETSI TISPAN
2005
2006
2007
2008 -
IMS
Rel 7
NGN
Rel 1
NGN
Rel 2
NGN
Rel 3
(Full Nomadicity)
ITU-T
SG13 JRG-NGN
NGN-SG (SG13)
FGNGN
(Focus Group on NGN)
NGN
Rel 1
［Apr, 2005］
27
NGN (Next Generation Network) Architecture
Applications
Based on
3GPP IMS R6
IP Connectivity
Access Network
And related subsystems
Other Multimedia
Subsystems …
IMS is used for
call processing
(RTSP- based)
Streaming services
Network
Attachment
Subsystem
(SIP- based)
IP Multimedia Subsystem
(Core IMS)
PSTN
(SIP- I based)
PSTN/ISDN Emulation
Subsystem
Resource and
Admission Control
Subsystem
GW
GW
GW
GW
GW
Access Transport
Network
Core Transport Network
IP
IP transport
28
One Example of Network Convergence
PSTN
PLMN
MG
SG/MG/MGC
Service
Servers
MSC
HSS/AAA
SBC
MMD
Circuit Switch
NW
VoIP NW
NGN / MMD
SBC
MG
Converged IP Core Network
IP Core
LMSD
MSCe
NGW
CDMA
1x RAN
Legacy
Handset
CDMA
IP RAN
SIP
Handset
Access
PDSN
Modem
B3G
B3G
Handset
B3G Handset
802.11
802.11
Handset
WLAN
SIP
Phone
Analog
Phone
Analog
Phone
MG/SG (Media Gateway/Signaling Gateway)
HSS （Home Subscriber Server)
SBC （Session Border Controller）
B3G (Beyond 3rd generation)
29
Services Provided by MMD (1)
Multimedia services are converged by MMD based on SIP protocol.
< Service examples >
Presence Server
PoC Server
Game Server
• Instant Message
• Presence Service
Video Telephony
• Voice Communication
Server
• Video Telephony
• PoC (Push to Talk)
• Switching Capability
• Text Chat
• Interactive Game
• Application Sharing
• Push Services
• Call Forwarding/Voice Mail
• IM/E-mail converting
• Web Browsing
• Streaming
• Search Engine
etc.
MMD
Network
SIP Server
Video Telephony
PoC
Game
30
Services Provided by MMD (2)
Simultaneous multimedia services benefits end users.
e.g.) Game & Video Telephony
Game Server Video Telephony Server
Game
SIP Server
Oh my!
I got an
edge!
MMD Network
I got an
edge!
Oh my!
Video Telephony
31
Services provided by MMD (3)
Switching capability of multimedia services benefits end users.
e.g.) from Video Telephony to Chat
Video Telephony
Server
I wonder
how she is.
Chat Server
Video
Telephony
Video
Telephony
I cannot answer
a video call right
now,so I will
answer him
through chat.
SIP Server
Chat
Chat
>Sorry. I am
busy now. I will
call you back
tonight. I love
you!
MMD Network
32
“Thank you”
www.kddi.com
33

A view of cellular network migration toward IPv6

Transcription

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