utstarcom confidential1 fmc: driving the transition to ims guanglu wang director intl mswitch...
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UTStarcom Confidential 1
FMC: Driving the Transition to IMS
Guanglu Wang Director
Intl mSwitch Product Management
September 10, 2007
Guanglu Wang Director
Intl mSwitch Product Management
September 10, 2007
UTStarcom Confidential 2
Everybody is Pursuing FMC
NGN/VoIP Operators• High subscriber acquisition cost
• Must improve ARPU
•Must lower churn rate
Mobile Network Operators
• Mobile are becoming saturated
• ARPU is decreasing
• Competition from cable MSO
Fixed Line Operators
• Losing customers to Wireless Substitution
• Losing customers tocable voice services
• Need to bundle with Mobile
Cable/MSO Operators • Mobile service is the only
missing leg for quadruple play
• Competition from Telco IPTV
UTStarcom Confidential 3
What Customers Tell Us
• FMC, messaging and IPTV are among the most important service initiatives
• IMS evolution and modernizing legacy switching and access are the most important network initiatives
HOWEVER• How to justify the investment for building an full IMS
network?• What immediate benefit carriers can have for an full IMS
network?• What if IMS does not bring long term return as it has
promised?• …
UTStarcom Confidential 4
USER DEVICES
ACCESS
APPLICATION
Networks Today — Before IMS
Networks today are mostly purpose builtNetworks today are mostly purpose built
Different Different Back officeBack office
Separate Separate User Devices User Devices
Segregated Access Segregated Access TechnologiesTechnologies
Separate NetworksSeparate NetworksSESSION
Fixed VoiceMobile Voice VideoData
UTStarcom Confidential 5
USER DEVICES
ACCESS
APPLICATION
Fixed DataFixed VoiceMobile Voice
IMS Network – Final Destination
Share resources, enable multiple services, reduce costsShare resources, enable multiple services, reduce costs
Video
Application ServersApplication Servers
Converged Converged Devices PossibleDevices Possible
Access IndependentAccess IndependentOf Service TypeOf Service Type
Common Common Session/ControlSession/Control
SESSION
UTStarcom Confidential 6
Question – A Million Dollar One
How do we get from point A to point B
ANDWithout getting broken
Without losing customer today
Without being exposed to uncontrollable risk
AND
Without being got FIRED!
UTStarcom Confidential 7
UTStarcom Believes
• IMS has unclear future if it cannot bring both short term and long term benefits to the carriers
• FMC is a perfect application that bridges today and tomorrow– Meets customer need today
• Build up a ROI-based FMC application is the first step toward full IMS network
• ROI-based FMC provides smooth migration path to full IMS architecture – Meets customer need tomorrow
UTStarcom Confidential 8
Fixed VoiceMobile Voice
USER DEVICES
ACCESS
APPLICATION
First Step: ROI-Based FMC
FMC meets customer requirements today, with FMC meets customer requirements today, with evolution to full IMS network architecture laterevolution to full IMS network architecture later
Video
Function Specific Function Specific Application ServersApplication Servers
Dual-Mode Dual-Mode Handset Handset
FMC uses Cellular, FMC uses Cellular, Broadband, WiFi Broadband, WiFi
FMC Leverages Fixed FMC Leverages Fixed Voice Softswitch Voice Softswitch
SESSION
Data
UTStarcom Confidential 9
FMC Evolution to IMS
0. ROI-based FMC Solution
FMCFMCFEATURE FEATURE SERVERSERVER
NGNNGNSOFTSWITCHSOFTSWITCH
SIP MAP
GSMGSM
UTStarcom Confidential 10
FMC Evolution to IMS
1.Disaggregate SG function from the existing Continuity FS
FMCFMCFEATURE FEATURE SERVERSERVER
NGNNGNSOFTSWITCHSOFTSWITCH
SIP MAP
SGSG GSMGSMMAP
UTStarcom Confidential 11
FMC Evolution to IMS
2. Fine tune the SIP interface to Isc to interwork with S-CSCF
FMCFMCFEATURE FEATURE SERVERSERVER
S-CSCFS-CSCF
ISC MAP
SGSG GSMGSMMAP
UTStarcom Confidential 12
FMC Evolution to IMS
3. Disaggregate HLR/VLR function from existing FMC and replace with Sh interface to interwork with HSS
FMCFMCFEATURE FEATURE SERVERSERVER
S-CSCFS-CSCF
ISC MAP
HSSHSS Sh
SGSG GSMGSMMAP
UTStarcom Confidential 13
FMC Evolution to IMS
FMCFMCFEATURE FEATURE SERVERSERVER
S-CSCFS-CSCF
ISC MAP
4. Provide the Ro Interface to interwork with Charging Function
HSSHSS Sh ChargingChargingRo
SGSG GSMGSMMAP
UTStarcom Confidential 14
FMC Evolution to IMS
5. Fully comply with IMS with all internal logics and external interfaces
FMCFMCFEATURE FEATURE SERVERSERVER
S-CSCFS-CSCF
ISC MAP
HSSHSS Sh
SGSG GSMGSMMAP
ChargingChargingRo
UTStarcom Confidential 15
Application Layer
Gateway &Interworking
MultiprotocolAccess
IMS Converged Core
SIPContinuity
FMCMSG OSAPTTRBT IM
PSTN
NGN
CDMA
GSM
Gateway
HSS
CSCF
MGCF
FTTX
DLC
VoIP
ISDN
POTSCore IP/Optical Backbone
Continuity Path to IMS
