Transcript Armin Toepfer, MMO, 02/2000 07 - 09 February 2000, Nice, France

Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 1
Subjects
Mannesmann Mobilfunk -
A “Legacy Network Operator”
How Should the Roadmap Look Like?
Key Questions for Mannesmann Mobilfunk
Service
System
Security
Radio
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 2
Subjects
Mannesmann Mobilfunk -
A “Legacy Network Operator”
How Should the Roadmap Look Like?
Key Questions for Mannesmann Mobilfunk
Service
System
Security
Radio
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 3
How does our network look like ?
Mannesmann Mobilfunk has nearly 10 Million customers
Our customers generate more than 350 Million SMS/month
We operate an installed basis of about 100 MSCs and
20.000 radio cells
We frequently add MSCs, SMSCs, IN-Systems,
VoiceMail Systems, Voice Response Units........
We stick to multi-vendor capability
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 4
Gi
PST N
GMSC
GGSN
AuC
C
PST N
HLR
PST N
Gn
Gr
EIR
F
G
Gf
VLR
B
MSC
Gc
H
D
VLR
Gs
B
E
Gp
SGSN
MSC
CN
A
BSS
IuCS
IuPS
BTS
Iur
RNC
Abis
Node B
Armin Toepfer, MMO, 02/2000
Abis
Iubis
Node B
Node B
Um
The migration to
3rd Generation via GPRS to 3G
R’99
BSC
RNC
Iubis
BTS
BSS
RNS
RNS
BSC
Gb
IuPS
IuCS
ME
07 - 09 February 2000, Nice, France
SIM
or
BTS
BTS
Um
Uu
SIM -M E i/f
Node B
Cu
USIM
GPRS
3G R’99
MS
Page 5
Alternative
Access
Network
Legacy mobile
signaling
Network
Applications &
Services
SCP
R-SGW
GGSN
Ms
CAP
Gn
Other PLMN
Cx
CSCF
All-IP assumes end-to-end
IP functionality
All-IP is a revolutionary
concept
HSS
Gp
MT
R
ERAN
Um
Gi
Iu
Gi
MGCF
Gi
Gc
T-SGW
Mc
GGSN
SGSN
2
Mr
MRF
Gf
Iu-ps'
Mm
Mg
Gr
EIR
TE
Mw
Mh
SGSN
Multimedia
IP Networks
CSCF
Gi
Gn
1
TE
UTRAN
MT
R
Iu
MGW
MGW
Uu
Nb
Mc
1
Iu = Iucs (RTP, AAL2)
2
Iu = Iu (RANAP)
PSTN/
Legacy/External
Iu
Mc
Nc
MSC server
GMSC server
T-SGW
MAP
MAP
Applications
& Services
Mh
HSS
R-SGW
New entities/interfaces -> All-IP simplifies??
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 6
Interworking with IN-Services
requires additional functionality
VHE/OSA
Application
Interface
CSE
CAP
softSSF
CSCF
MAP
MAP
Mg
HLR
CAP
Gm
MGCF
Mc
SGSN
Armin Toepfer, MMO, 02/2000
Gn
GGSN
MGW
Gi
07 - 09 February 2000, Nice, France
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Simplified “All-IP” - our Goal
CS Domain
PSTN
G/W
PS Domain
HLR
Server
PDN
GSN
TIPHON
BSC
Server
A
IU
Gb
BSC
IP/ATM
Network
RNC
MSC
Server
Abis
BTS
Abis
BTS
Server
IUb
IUb
Node
B
Node
B
Radio Network
Hierarchical Network based on R’99
Armin Toepfer, MMO, 02/2000
RNC
07 - 09 February 2000, Nice, France
Corporate
BTS
BTS
Corporate
Voice & Data
Node
B
IP over ATM Release 2000++
Page 8
Some General Issues
Among other reasons, GSM has been a success because it is easily deployed due to offthe-shelf technology
The All-IP concept
multiplies the number of functional entities and protocols
23.922* makes reference to bunches of protocol options
23.922* makes reference to ITU protocols in progress
23.922* assumes modifications of ITU protocols (ISUP) which are even not considered
makes interaction between 2nd and 3rd G services complex
the concept does not address billing aspects
radio issues are far from resolution
* Feasibility Study of SA2
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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Benefits vs. Constraints [TR23.922]
Ability to offer seamless services, through the use of IP,
regardless of means of access
Synergy with generic IP developments and reduced cost of
service
Efficient
solution
for
simultaneous
MM
services including voice, data, and advanced
real time services.
Higher level of control of services
Integrated&cost reduced O&M through IP
Take advantage of Internet applications by supporting
terminals which are IP clients.
Cost reduction through packet transport
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
OK
cost of service??
possible,voice??
many open issues
??? More NE‘s
OK
verification?
Page 10
Subjects
Mannesmann Mobilfunk -
A “Legacy Network Operator”
How Should the Roadmap Look Like?
Key Questions for Mannesmann Mobilfunk
Service
System
Security
Radio
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 11
What is the Impact to the Road Map
We support the overall goal of the All-IP concept
We stress the anticipated benefits as “Must”
The architectural considerations are full of “may’s” and “if’s” and “ffs” - it is far from
maturity
We suppose that current concept papers does not provide sufficient guideline for
straight forward specification
We assume that All-IP cannot completed within the anticipated time frame of one year
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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What ... And Our Recommendation
We propose to devote the year 2000 for completion of the ground work
system performance and complexity analysis, QoS solutions, billing concepts,
identification of protocols (less options), availability and stability of third party
protocols,
in order to carry out the detailed specification work in 2001
We anticipate a first set of stable and mature set of All-IP
specifications end of 2001 - with the quality we are used to,
with few as possible choices and options
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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The Roadmap (2001- 2003)
We propose
Step 1: To complete the first set of specifications for 2001. This should comprise Core
Network specifications, including all interworking/gateway function
Step
2:
NodeB/BTS
Then
Access
Network
between
RNC/BSC
and
Step 3: Then Radio Interface - equals the “All-IP” end-to-end solution
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 14
Subjects
Mannesmann Mobilfunk -
A “Legacy Network Operator”
How Should the Roadmap Look Like?
Key Questions for Mannesmann Mobilfunk
Service
System
Security
Radio
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 15
Key Questions to be Addressed
In general we should address the following areas:
Quality of Service
Efficiency
Capacity
Performance
Complexity
Scalability
Security
Operability
Reliability
Accountability (Billing)
Migration
Roll-Out
But we concentrate on some questions
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
Page 16
Is there really a Gain for Packet Traffic
with Service Mix with real-time services
bit/s
bit/s
Max
Virtual
Connections
Av
g
Packet
Scheduler
Max
Av
g
t
bit/s
Max
Throughput
Av
g
QoS

t
t
bit/s
QoS
Management
Max
Delay
Av
g
t
Probability
t
Armin Toepfer, MMO, 02/2000
t
07 - 09 February 2000, Nice, France
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System Requirements I
 GPRS and Release99 are introducing additional
Network Elements to be managed. Release 00 should
decrease the number of Network Elements !!
 Limit the number of Options: only CS/PS or All-IP
 Compatibility to GSM (GSM UMTS Handover)
 Less Interworking/Gateway Functions
 Support of the Multi-Vendor Environment is a must
 Integration of IN Service Concepts (CAMEL)
 Testability (easy to test)
 Scalability (Performance, Address Space for Services
and NE’s)
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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System Requirements II
 Support of 2nd Generation GSM Radio Access Network
 Support of Self Configuration and Capacity Planning
 Common O& M (IP and switched world)
 Interception
 Ability to Integrate with Billing System
 Support of all current TMN requirements:
– Configuration Management
– Fault Management
– Performance Management
– Security Management
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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Service Requirements
 Service Continuity of “Legacy Services”
 Support
of
new
Multi-Media
Services
simultaneous Voice and Video application
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
as
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Security Requirements
 Working Assumption: IMSI Security is available via R’99
 Protecting MAP-messages:
Confidentiality
Integrity
Authentication
 Key Management
 Which layer of implementation (e.g. IP or MAP)?
 Firewall management
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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Radio Requirements I
 Optimised Radio Resource Usage for service and
signalling support
 Continuation of R’99 concepts:
Radio related issues (HO etc.) - be handled in the Radio
Access Network (RAN)
Separation of User plane and Control plane Protocol
stacks in the RAN
 Fast uplink access and fast resource assignment in both
Up- and Downlink
 Optimisation of end to end IP transport for real time
services (e.g. header compression etc.)
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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Radio Requirements II
 Bearer differentiation capability at the RAN for
multiplexing different types of traffic on the air
 Optimisation of coding and interleaving for real time
services
 Support of multiple data flows with different QoS per IP
address
 Spectrum efficiency shall be maximised, e.g. by
statistical multiplexing
 Network controlled Handover- HO UMTS-GSM
Armin Toepfer, MMO, 02/2000
07 - 09 February 2000, Nice, France
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