International Telecommunication Union
ITU-T
Mobility aspects of NGN
Architecture
Baofeng (Felix), ZHANG
Rapporteur of Q6/13 ITU-T
Vice Director of Research and Standard
Dept, Core Network Division in Huawei Tech.
Ltd.Co.
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
Mobility is Everywhere
ITU-T
Services and
Applications
New Radio
Interface
download channel
return channel
e.g. cellular
Digital
Broadcast
Wireline
xDSL
IP based
Core Network
Cellular
2nd gen.
IMT-2000
WLAN
type
other
entities
Short Range
Connectivity
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
2
Mobility Management Complexity
ITU-T
o
3GPP and 3GPP2 do MM in slightly different ways: not fully
compatible
o
There are multiple Mobility Management protocols*:
•
•
•
•
•
•
•
Mobile IP (MIP); extensions: HMIP and FMIP
Session Initiation Protocol (SIP)
Cellular IP (CIP): with MIP for MM; with SIP for MM
mobile Stream Control Transmission Protocol (mSCTP)
3GPP Mobility Management Protocols: MAP—MIP and SIP in
3GPP system
3GPP2 Mobility Management Protocols—MM in the ANSI-41
evolved IP MMD core network
BRAIN Candidate Mobility Protocol (BCMP)
* Q series Supplement 52 -Technical Report on NNI Mobility
From SG19’s Chair, Mr. John Vissa ’s
Management Requirements
Presentation in ATIS-ITU Workshop
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
3
Generalized Mobility’s Dimension
ITU-T
o
o
o
o
Terminal Mobility
Network Mobility
Personal Mobility
Service Mobility
Mobility
Service
Continuity
Seamless
Handover
Service
Discontinuity
Handover
Roaming
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
Portability
4
Mobility Scenarios
ITU-T
U
SP
(1)
NAP
Access Network
(any type)
NT
U
SP
(2)
U
(3)
U
SP
SP
U
NT
SP
Access Network
(any type)
(4)
U
SP
U
SP
NT
NAP
(7)
NAP
U
SP
Service
Function
Domain A
NAP
Core
Transport
Network
NT
Access Network
(any type)
(5)
U
SP
NT
NAP
Service
Function
Domain B
(6)
NAP
U
SP
NT
Access Network
(any type)
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
5
Classification of Mobility Management
ITU-T
AN4
(New Future AN )
AN3
(Non IMT F.M )
e.g, WLAN
AN2
(IMT F.M 2)
AN2
(IMT F.M 2)
AN3
(Non IMT F.M )
e.g, WLAN
CN1
(IMT F.M 1)
Inter-Network MM
Inter-AN MM between same type of ANs
Inter-AN MM between different types of ANs
Intra-AN MM
Mobility Management
Access Network
2a
1
1
AN1
(IMT F.M 1)
MM
AN
CN2
(IMT F.M 2)
2b
AN2
(IMT F.M 2)
3
2b
1
CN3
(Future converged CN)
1
2a
2b
AN3
(Non IMT F.M )
e.g, WLAN
3
AN1
(IMT F.M 1)
2b
AN1
(IMT F.M 1)
2a
CN
Core Network
IMT F.M IMT -2000 Family Memeber
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
6
Example to achieve MM in Different Level
ITU-T
IMS
Service Level
Mobility
PSTN /
SS7
GMSC
MM
Inter-Access Network
Level Mobility
MM
MM
Intra-Access Network
Level Mobility
Wide Area
GGSN
PDG
MM
LMA
LMA
ESS
ESS
DVB-GW
SGSN
SGSN
RNC/BSC
RNC/BSC
AP
IPv4 MS
+ CCoA
AP
AP
IPv6 MS
+ CCoA
AP
AP
DVB-TX
IPv4 MS
WLAN / WiMAX
DVB / ISDB-T
BTS
BTS
Intra-Access Network
Level Mobility
Local Area
MSC
RNC/BSC
BTS
BTS
MS
MS
cdma2000/UMTS
Data
Cellular
Voice
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
Intra-Access Network
RadioLevel Mobility
User Level Mobility
7
Key Mobility Managers
ITU-T
Mobile
Terminal
Local
LM
DB
Home
LM
DB
HM
PM
Access Network 1
Core Network
Access Network 2
Access Network 3
LM: Location Manager
PM: Paging Manager
HM: Handover Manager
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
8
MM Scenarios by Services Models
ITU-T
o
Client-Server Services Model
•
•
•
o
Short-lived sessions (e.g., e-mail, Web, etc);
Long-lived sessions for non-real time services (file
transfer, video/music download, etc);
Long-lived sessions for real-time services
(Interactive VoD or AoD, etc).
Peer-to-Peer Services Model
•
•
•
Short-lived sessions (e.g., short message services,
etc);
Long-lived sessions for non-real time services
(multimedia messenger services, etc);
Long-lived sessions for real-time services (Voice
over IP, etc).
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
9
Current Considered MM Scenarios
ITU-T
MM Functionality
Services
Model
ClientServ
er
Peer-toPeer
Features
Services
Examples
Short-lived
LM (with
PM)
HM (loss- or delaysensitive)
e-mail, Web
Not Required
Not Required
Long-lived
(non-real time)
File download
Not Required
Required (loss-sensitive)
Long-lived
(real time)
Interactive VoD
Short-lived
Short message
service
Required
Not Required
Long-lived
(non-real time)
Multimedia
messenger
service
Required
Required (loss-sensitive)
Long-lived
(real time)
VoIP
Required
Required (delay-sensitive)
Not Required Required (delay-sensitive)
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
10
Under the Umbrella of ITU-T NGN-GSI
ITU-T
o
4 closely related co-operating Questions:
• Q.2/19 Mobility management
• Q.5/19 Convergence of evolving IMT-2000
networks with evolving fixed networks
• Q.6/13 NGN mobility and fixed-mobile
convergence
• Q.29/16 Mobility for Multimedia Systems
and Services
From SG19’s Chair, Mr. John Vissa ’s Presentation
in ATIS-ITU Workshop
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
11
NGN-GSI’s Relevant Projects
ITU-T
TR.NGN-MOB in FGNGN
Y.NGN-MOB in Q6/13
Q.MMR in Q2/19
Unified Mobility
Deliverables
Q.MMF in Q2/19
•Rec.MMR: Mobility Management Requirements (Stage 1)
•Rec.MMF: Mobility Management Framework (Stage 2)
•Rec.LMF: Location Mobility Management Framework (Stage 2)
•Rec.HMF: Handover Management Framework (Stage 2)
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
12
NGN-GSI Projects’ Time Table
ITU-T
From SG19’s Chair, Mr. John Vissa ’s Presentation
in ATIS-ITU Workshop
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006
13
International Telecommunication Union
ITU-T
Thank You
May 8, 2006
ITU-T Workshop on “Next Generation Networks“
Hanoi, Vietnam, 15-16 May 2006