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Transcript of Next Generation Converged Network Architecture …ieeenj/comsoc/talks/07_Oct_16_Amit_Slides.pdfNext...
Beyond IMS…
Amit Mukhopadhyay &
Carlos Urrutia-Valdés, October 2007
Bell Labs, Alcatel-Lucent
Next Generation Converged Network
Architecture and Application
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 2
Outline
High Level Architecture of Next Generation NetworksWhat is NGN?
Yesterday, Today and TomorrowWireless-Wireline Convergence Example
IMS RecapBuilding Blocks and system components
Introduction to Blended ServicesBundling vs. Blending
How is blending achieved?Introduction to the SCIM and SCIM+Examples
IMS, SDP, and SDEsSoft DefinitionsChallenges
A View of Nirvana??SummaryAcknowledgments
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 3
NGN Architecture
IPIP CoreCore
DSL/DSL/FTTxFTTx
WiFi/WiMaxWiFi/WiMaxUMTS/CDMAUMTS/CDMA
MGW PSTN
Internet
S/BC
S/BCPDSN/GGSN
Session Control&
User profile
Session Control&
User profile
ApplicationsApplications
Tran
spor
t Lay
erSe
rvic
e La
yer
S/BCHFCHFC
S/BC
SIP-based Services
RTSP-based Services
PSTN/ISDNEmulation
Other Multimedia Services
Multiple applications supported over a common infrastructure
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 4
Convergence – Many AspectsConvergence – Many Aspects
Common Experience
(same look & feel)
Common database platforms (e.g. HSS, AAA)Unified end-user terminals & APIs
Centralized Operations (e.g. common NOC, Std
interfaces, Billing)
Common service platforms (e.g., App. Servers, MRFP)
Common transport network (e.g. Core, MGW)Common session control
(e.g. IMS)Enablers
Seamless Roaming
(e.g. WiFi-Mobile, Mobile-Wireline)
Network-agnostic platformsService Bundling
(e.g. Lifestyle Services)
Shared network resources
(e.g. one core network)
Service Interaction
(e.g. Voice+ IMM)
NetworkEnd-User
Dimensions
Reduce CostIncrease RevenueDrivers
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 5
How to stayin touch?
Yesterday World of Communications
Phone
TV
Internet
Yesterday’s communications world:Separate networks and services.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 6
Phone
Internet
TV
Service Convergence is beginning…Examples: VoIP, IPTV, Wifi Roaming.
Today’s World of Communications
IMS, through the separation of session control from the application and transport layers, provides a framework for this convergence.
IMS, through the separation of session control from the application and transport layers, provides a framework for this convergence.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 7
WiFi Coverage
Cellular Coverage
IMS & Wireless-Wireline ConvergenceWifi Roaming Example
HLRRNS MSC/VLR
WiFiAP
Mobility Manager
AS
LocationServer
PresenceServerCSCFWiFi
NetworkIP Network
2c. MM-AS performs a Location Update with HLR
2c. MM-AS performs a Location Update with HLR
2d. User location updated. Incoming calls will be routed
to IMS
2b. CSCF based on filter criteria sends REGISTER to MM-AS
and notifies other servers
2b. CSCF based on filter criteria sends REGISTER to MM-AS
and notifies other servers
2. User moves into Wifi network.2. User moves into Wifi network.DMH
DMH
1. User powers up on an CDMAcoverage area..
1. User powers up on an CDMAcoverage area..
1a. Registers in CDMA network1a. Registers in CDMA network
DMH
1b. User’s location known
DMH
CDMA CS Network
Wifi Network IMS Core Network
User can originate and received calls on either network.
The IMS infrastructure provides the vehicle for wireless-wireline convergence.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 8
Phone
Internet
TV
Service blending…going beyond convergence…
The Future World of Communications
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 9
What is IMS?
Original (late ’90s/early ’00s) definition per 3GPP TS 23.228:The IP Multimedia CN subsystem comprises all CN elements for provision of multimedia services. This includes the collection of signaling and bearer related network elements…
Ability to mix multiple media during a session is a key characteristics of IMS:•Simultaneous voice, data and video applications
•Different media with different QoS requirements
•Common resources shared across multiple applications for service providers
•Common “touch-and-feel” for subscribers
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 10
IP Multimedia Subsystem (IMS)
More Current View:More Current View: Architecture designed for IP Multimedia Services
Originally developed by 3GPP (for UMTS) and later adopted by 3GPP2 (for cdma2000); now being investigated by ITU,..
Support of other access technologies (e.g., DSL, Cable, Wi-Fi) a vision
Capable of Interworking with PSTN
Defined with Open Standard Interfaces
Based on IETF Protocols (SIP, RTP, …)
A Solution for Service Transparency
Interaction with Legacy IN Based Services
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 11
CSCF, BGCFMGCF & MRFC
Applications Layer
End-user telephony service logic
AIN call trigger points
Non-telephony based services
APIs for enterprise & legacy applications
Session Control Layer
End Point Registration
Session setup
QoS establishment
Transport & Endpoint Layer
Bearer Services, Media Conversion (PCM > IP)
Special functions: announcements, touch tones collection, voice recognition, speech synthesi
IMS Building BlocksIMS Building Blocks
Media GatewayMedia Server
HSS
OSA-GWTelephony AS
Non-telephony AS
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 12
Wireline and Wireless SIP EndpointsGSM, UMTS, 802.11, Bluetooth, DSL, FTTP, …
SIP
TDMPBX
Legacy IPEndpoints & PBXsH.323 and MGCP
MGCFMGCF
Web PortalWeb Portal
ININAccessAccess
Parlay App Parlay App ServerServer
SIP AppSIP AppServerServer
OSA SCSOSA SCS
II--CSCFCSCF
SGSG
PP--CSCFCSCFPDF
AnalogEndpoint
PSTNPSTNSS7SS7
IP SignallingIP SignallingConverterConverter
MediaMediaGatewayGateway
Media and End Point
Layer
Session ControlLayer
Application Layer
MediaMediaServerServer
MRFCMRFC
SS--CSCFCSCF
CentralizedCentralizedDatabasesDatabases
HSS
Support SystemsSupport SystemsBilling Mediation, Fault Correlation, Operations,
Maintenance, …
BGCFBGCF
3GPP/3GPP2 IMS Inspired Architecture3GPP/3GPP2 IMS Inspired Architecture
SIPSI
P
SIP
SIP
SIP
CO
PS
DiameterH
.248
H.2
48
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 13
IMS Entity Definitions
Signaling EntitiesHSS - Home Subscriber Server or “HSS Collective”
Consists of AAA and DatabasesCSCF - Call Session Control Function – 3 flavors
S-CSCF – Serving: Session control entity for endpoint devicesI-CSCF – Interrogating: Entry point to IMS from other networksP-CSCF – Proxy: Entry point to IMS for devices
BGCF - Breakout Gateway Control FunctionSelects network to use for PSTN/PLMN interworking
MGCF - Media Gateway Control FunctionControls MGW
MRFC - Multimedia Resource Function ControllerControls MRFP
PDF - Policy Decision FunctionAuthorizes QoS requests
AS - Application Servers – provides services and applicationsSession Initiation Protocol (SIP) ASOpen Service Access (OSA) Service Capability Server (SCS) & OSA ASAIN Interworking Server
Bearer EntitiesMGW - Media Gateway
Inter-works RTP/IP and PCM bearersMRFP - Multimedia Resource Function Processor
Provides conferencing, transcoding and announcements
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 14
IMS Network
IP Network
Softswitch
CSCF
BGCF
MRFC
MGCF HSS(DB/AAA)
CDMA / GSM / UMTS Network
MGW
IM-PS,Conference& more
IMSPTT/S
MRFP802.11
Network
IPNetwork
Presence& Buddies
Prepay
CDMA / GSM / UMTS Network
BillInsurance Claims Rep
MaryPresident Bus Company
AnnInsurance Admin Assistant
IM ClientOn PC
Example - Insurance Claims InvestigationExample - Insurance Claims Investigation
JackBus Sales Rep
Mary and Billare talking
Bill initiates aPush-to-Show
session
Bill showsMary theaccident
Bill Inst MsgAnn
Ann sends Billrecords of
previous claims
Mary inst msgsBill
Mary sends Billbus maintenance
record
Conferencecall with
Bus Sales Rep
Conferencediscussion
about accident
Control
Bearer
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 15
Control
Bearer
Called PartyVisited Network
Called PartyHome Network
Calling PartyHome Network
Calling Party Visited Network
UE
P-CSCF
HSS
S-CSCFSIP
SIP
Diameter
UE
P-CSCF
AS
HSS
S-CSCF SIP AS
SIP
Diameter
I-CSCF
Diameter
DNS
BackbonePacket
NetworkRANBackbone
PacketNetwork RAN
Initiate SIP Invitation1
1
Retrieve Subscriber Profile (if needed) 2
2
3
3 Apply Service Logic
Retrieve Address of CLD Party Home Networkand Forward INVITE.
4
4
Identify Registrar of CLD Party and Forward INVITE.5
5
Retrieve Subscriber Profile (if needed) 6
6
7
7 Apply Service Logic
Forward INVITE to CLD Party8
8
Ringing / Alerting10
10
IMS Subscriber to IMS Subscriber high level call flowIMS Subscriber to IMS Subscriber high level call flow
SDP Negotiation / Resource Reservation Control9
9RTP Stream
Answer / Connect11
11
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 16
MobileMobile--toto--Mobile detailed call flow(1)Mobile detailed call flow(1)
SIP INVITE
SIP INVITE
SIP INVITE
SIP 183 Session Progress
SIP INVITE
BEARER
1.2. 3.
4
5
6
7
8
15 14 13 12
11109
SIP 180 Ringing
60
SIP 200 OK (INVITE)
SIP ACK54
1617
3435
484950515253
55 56 57 58 59
30313233
SIP BYE61 62 63 64 65
SIP 200 OK (BYE) 676869707172
DNS Query: (URI)
DNS Response: I-CSCFfor CALLED (IP Addr)
Cx Location Query(Get CALLED IP)
Cx LocationResponse: S-CSCF
(CALLED IP)
SIP 100 TRYING
SIP INVITESIP INVITESIP 183SessionProgress
SIP 183 SessionProgress
SIP 183SessionProgress
SIP 183SessionProgress
SIP 183 SessionProgress
SIP 200 OK (INVITE)SIP 200 OK (INVITE)SIP 200 OK(INVITE)SIP 200 OK (INVITE)SIP 200 OK (INVITE)
SIP 180 Ringing SIP 180 RingingSIP 180 RingingSIP 180RingingSIP 180 Ringing
SIP ACK SIP ACK SIP ACK SIP ACK SIP ACK
SIP BYE SIP BYESIP BYESIP BYE SIP BYESIP 200 OK
(BYE) SIP 200 OK (BYE)SIP 200 OK (BYE)SIP 200 OK (BYE)SIP 200 OK (BYE)
66
SIP PRACK19 20 21 22 23SIP PRACK SIP PRACK SIP PRACK SIP PRACK SIP PRACK18
Evaluate Filter Critera
SIP 200 OK (PRACK) 2425272829 SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
26
P-CSCF S-CSCFUE-1 DNS HSS UE-2I-CSCF S-CSCF P-CSCFCalling Party Home Network Called Party Home Network
SIP PRACK37 38 39 40 41SIP PRACK SIP PRACK SIP PRACK SIP PRACK SIP PRACK36
SIP 200 OK (PRACK) 4243454647 SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
SIP 200 OK(PRACK)
44
Figure A: SIP UE to SIP UE
Not ncessary if home network is the same
for both UEs.
Evaluates initial filter criteria
Authorizes QoSAuthorizes
QoS
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 17
Mobile to Mobile detailed call flow (2)Mobile to Mobile detailed call flow (2)
Both users are already attached to the network and registered.
1. UE-1 sends a SIP INVITE message to its Proxy CSCF(P-CSCF).2. A SIP 100 Trying message is generated back to the UE. (This SIP 100 Trying message will
not be shown throughout these call flows, but it is assumed that a SIP 100 Trying will be generated in reply to all SIP INVITE messages to avoid retransmission of the SIP INVITE.)
3. The P-CSCF determines the S-CSCF for UE-1.4. The S-CSCF evaluates the Filter Criteria for UE-1 and then queries the DNS server to request
the location information about the called party UE-2. (A DNS query is not necessary if UE2’s home network is the same as UE-1’s home network. In this case the S-CSCF after evaluating the filter criteria forwards the INVITE to a local I-CSCF and the procedure skips to step 6.)
5. The address of the I-CSCF for the UE-2 is returned from the DNS Server.6. The SIP INVITE is passed to the I-CSCF for UE-2.7. A request is made to the HSS to determine the location/profile/status of UE-2.8. A reply is given from the HSS to the I-CSCF to identify the S-CSCF for UE-2.9. The SIP INVITE is forwarded on to the S-CSCF for UE-2 which evaluates the service profile
of the user and the initial filter criteria.10. The S-CSCF forwards the SIP INVITE to the P-CSCF for UE-2. (The S-CSCF knows the P-
CSCF for UE-2 based on UE-2’s registration).11. The P-CSCF forwards the SIP INVITE to UE-2.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 18
Mobile to Mobile detailed call flow (3)Mobile to Mobile detailed call flow (3)
Step 12-17 A SIP 183 Session Progress message is sent back from UE-2 to UE-1. This SIP message may contain the SDP “answer” from the SIP INVITE SDP “offer”.
Step 18-23 A SIP PRACK (PRovisional ACKnowledgement) is sent from UE-1 to UE-2. If an incomplete SDP “offer” was made in the initial INVITE from UE-1, then the PRACK can be used to make another SDP “offer”.
Step 24-29 UE-2 responds with a SIP 200 OK to the previous SIP PRACK message. The message may include an SDP “answer” from the SDP “offer” from the previous SIP PRACK message.
Step 30-35 UE-2 may respond to the original SIP INVITE with a SIP 180 RINGING indicating that the called UE is ringing. This message traverses the same path back as the SIP INVITE took for delivery.
Step 36-41 UE-1 replies with a SIP PRACK to the previous SIP 180 RINGING.Step 42-47 UE-2 sends a SIP 200 OK in response to the SIP PRACK.Step 48-53 UE-2 also responds with a SIP 200 OK to the original SIP INVITE. This message
traverses the same path back as the SIP INVITE and should contain the SDP “answer”.Step 54-59 The SIP ACK message is sent from UE-1 to UE-2. This Acknowledgement will contain
the agreed upon resources for the session in the SDP.Step 60 A Bearer Session is established between UE-1 and UE-2. The RTP session established
here carries the negotiated media..Step 61-66 A SIP BYE message is sent by either party, UE-1 or UE-2. In this case UE-1 sends the
SIP BYE to UE-2 to terminate the call.Step 67-72 UE-2 responds with a SIP 200 OK to UE-1 and the session is terminated.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 19
Service Bundling vs. Service Blending
Service bundling offers unified ordering and billing for otherwise separate services.
Service Blending enables different services to control one another, providing new services
Service Blending
Voice Subscriber
ControlVoice
Data
Video
Voice Network Control
Video Subscriber
Control
Video Network Control
Data Subscriber
Control
Data Network Control
For Voice Connections
For MobileVoice Connections
Third party
Wireline
Wireless
For Data Connections
For VideoVoice Connections
Voice
Data
Video
Unified Control
Wireline
Wireless
Mobile TV
Alerts
Gaming on Demand
Caller ID on TV
Family Finder
Web on TV
Service Bundling
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 20
Example: Separate Services
Separate Bills
No service integration
Phone Service TV Service
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 21
Example: Simple Service Bundling
Single Bill
No service integration(still independent services)
Phone Service TV Service
No cost reduction
No true differentiation(can easily be copied)
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 22
Example: Enhanced Service Bundling
Services are overlaid (e.g. display of Caller ID on TV)
But: Services still do not control each other.
Phone Service TV Service
905-943-5826
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 23
Example: True Service Blending
Services interwork and control one another, e.g.
Call disposition via TV Remote Control,
TV content is automatically recorded during a call.
Phone Service TV Service
Answer Call
Send-to-Voice Mail
Reject Call
905-943-5826
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 24
RTP/RTSPIGMP
Proprietary EPG
SIPMM1, SMSIMAP, MIME
etc.
HTTP SMTP
WAPetc.
Video on Demand,
Pay Per View,Wireless BCMC,
IP TV, etc.
Voicemail,MMS, SMS,
Email etc.
Web/WAP,Calendar, Contacts
On Line Transactions,
Content Services, Gaming, etc.
App
licat
ion
Serv
ers
Application Clients
IP Access and Transport Networks
Service Infrastructures - UnblendedVoIP, IM , PTT
Video ConferencePresence,
Location, etc.
MessagingServices
StreamingServices
Web / WAPInformation
ServicesSIP Services
(IMS)
Carriers are deploying multiple architectures for delivering services
Voice Calls, Calling Name,
Toll Free, Presence, Location
etc.
Circuit NWServices
TCAP
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 25
RTP/RTSPIGMP
Proprietary EPG
SIPMM1, SMSIMAP, MIME
etc.
HTTP SMTP
WAPetc.
Video on Demand,
Pay Per View,Wireless BCMC,
IP TV, etc.
Voicemail,MMS, SMS,
Email etc.
Web/WAP,Calendar, Contacts
On Line Transactions,
Content Services, Gaming, etc.
App
licat
ion
Serv
ers
Application Clients
IP Access and Transport Networks
Service Infrastructures - BlendedVoIP, IM , PTT
Video ConferencePresence,
Location, etc.
MessagingServices
StreamingServices
Web / WAPInformation
ServicesSIP Services
(IMS)
Voice Calls, Calling Name,
Toll Free, Presence, Location
etc.
Circuit NWServices
TCAP
Blending Across Multiple Domains
This provides opportunities to create blending across multiple domains.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 26
How is blending achieved?
Through the creation of a services “ecosystem” that provides unified control across multiple service domains
Someone said Blending??
Someone said Blending??
More Info ?More Info ?
10:23 AM BulletinsSOUTHBOUND HWY 35 BETWEEN PEARL ST AND MAPLE AVE (RED BANK) -CLOSED DUE TO ROAD CONSTRUCTION + PAVING UNTIL 3:30 PM
Answer Call
Send-to-Voice Mail
Reject Call
Answer Call
Send-to-Voice Mail
Reject Call
07131/12010407131/120104
TV World
Web World
Phone World
Recommended ProgramsRecommended ProgramsPBSTBSTOONABC
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
BBC World NewsSeinfeldFamily Guy Being John Malkovich
PBSTBSTOONABC
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
BBC World NewsSeinfeldFamily Guy Being John Malkovich
Recently Recorded ProgramsRecently Recorded Programs30 min
120 min30 min
150 min
6/156/176/176/18
Sponge BobFour Weddings and a FuneralSeinfeldSpider Man
30 min120 min
30 min150 min
6/156/176/176/18
Sponge BobFour Weddings and a FuneralSeinfeldSpider Man
M ore Info ?M ore Info ?
10:23 A M BulletinsSOUT HBOUND HWY 35 BETWEEN PEARL ST AND MAPL E AVE (RED BANK) -CLOSED DUE TO ROAD CONST RUCT ION + PAVING UNT IL 3 :30 PM
Answer Call
Send-to-Voice M ai l
Reject Call
Answer Call
Send-to-Voice M ai l
Reject Call
07131/12010407131/120104
Recommended ProgramsRecommended ProgramsPB STBSTOONAB C
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
B BC World NewsS einfeldFamily Guy B eing John Malkovich
PB STBSTOONAB C
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
B BC World NewsS einfeldFamily Guy B eing John Malkovich
Recently Recorded ProgramsRecently Recorded Programs30 min
120 min30 min
150 min
6/156/176/176/18
S ponge BobFo ur Weddings and a Fun er alS einfeldS pider Man
30 min120 min
30 min150 min
6/156/176/176/18
S ponge BobFo ur Weddings and a Fun er alS einfeldS pider Man
More Info ?More Info ?
10:23 AM BulletinsSOUTHBOUND HWY 35 BETWEEN PEARL ST AND MAPLE AVE (RED BANK) -CLOSED DUE TO ROAD CONSTRUCTION + PAVING UNTIL 3:30 PM
Answer Call
Send-to-Voice Mail
Reject Call
Answer Call
Send-to-Voice Mail
Reject Call
07131/12010407131/120104
Recommended ProgramsRecommended ProgramsPBSTBSTOONABC
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
BBC World NewsSeinfeldFamily Guy Being John Malkovich
PBSTBSTOONABC
6:00 pm9:00 pm
11:30 pm8:00 pm
6/206/206/206/21
BBC World NewsSeinfeldFamily Guy Being John Malkovich
Recently Recorded ProgramsRecently Recorded Programs30 min
120 min30 min
150 min
6/156/176/176/18
Sponge BobFour Weddings and a FuneralSeinfeldSpider Man
30 min120 min
30 min150 min
6/156/176/176/18
Sponge BobFour Weddings and a FuneralSeinfeldSpider Man
More Info ?More Info ? 10:23 AM BulletinsSOUTHBOUND HWY 35
BETWEEN PEARL ST AND MAP LE AVE (RED BANK) -
CLOSED DUE TO ROAD CONSTRUCTION + PAVI NG
UNTIL 3:30 PM
Answer CallSend-to-Voice MailReject Call
Answer CallSend-to-Voice MailReject Call
07 131/ 1201 0407 131/ 1201 04
Recommended Programs
Recommended Programs
PBSTBS
TOONABC
6: 00 pm9: 00 pm11:3 0 pm8: 00 pm
6/206/20
6/206/21
BBC World NewsSein feldFamily Guy Bei ng John M alkov ichPBS
TBSTOONABC
6: 00 pm9: 00 pm11:3 0 pm8: 00 pm
6/206/20
6/206/21
BBC World NewsSein feldFamily Guy Bei ng John M alkov ichRecently Recorded Programs
Recently Recorded Programs30 min120 min30 min150 min
6/1 56/1 7
6/1 76/1 8
Sponge BobFour Weddings and a Fune ralSein feldSpi der Man
30 min120 min30 min150 min
6/1 56/1 7
6/1 76/1 8
Sponge BobFour Weddings and a Fune ralSein feldSpi der Man
Unified ControlUnified Control
Enables truly blended services that go beyond simple service bundling
Enables truly blended services that go beyond simple service bundling
PhoneWorld
Web/Internet
TVWorld
Enables seamless service control across networks; supports data federation and content syndication.
IMS provides a framework for blending through the use of SCIM…IMS provides a framework for blending through the use of SCIM…
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 27
Service Capability Interaction ManagerSCIM Definition
S-CSCFS-CSCF
SIP Application Server
SIP Application Server
HSSHSS OSA service capability server
(SCS)
OSA service capability server
(SCS)
IM-SSFIM-SSF
Camel Service Environment
Camel Service Environment
OSA application
server
OSA application
server
ISC
Cx ISC
ISC
CAPMAP
OSA API
SCIM
AS AS
Sh
Si
MRFCMRFC
Mr
Figure 5.1 1 – 3GPP TS 23.218
“…specialized type of SIP Application Server, the service capability interaction
manager (SCIM) which performs the role of interaction management between other
application servers.”*
“…specialized type of SIP Application Server, the service capability interaction
manager (SCIM) which performs the role of interaction management between other
application servers.”*
“All the Application Servers, (including the IM-SSF and the OSA
SCS) behave as SIP application servers on the ISC interface.”*
“All the Application Servers, (including the IM-SSF and the OSA
SCS) behave as SIP application servers on the ISC interface.”*
*Source: TS 23.218* See also: TS 23.2002
3GPP is not expected to further define the SCIM since it is in the application layer.
3GPP is not expected to further define the SCIM since it is in the application layer.
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 28
Network
SIP
Support Systems & Databases (e.g.
HSS, DNS, Presence, Charging)
Kicking It Up a Notch - SCIM+ Network Architecture
Web Services
SIP Applications
MRFC
BGCFS-CSCF
I-CSCF
P-CSCF
SIP Applications
IPTV
Controlling interactions–Among Application Servers
–Among Multiple sessions
–To Multiple or Diverse CPEs
Blending of services across domains
–Blend with Presence, Location, etc.
–Blend with Web Servers, messaging
–Blend with Session Context
–Blend with IT or Desktop Applications
Streaming …
SCIM+
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 29
MessagingServices
StreamingServices
Web / WAPServices
Video on Demand,
Pay Per View,Wireless BCMC,
IP TV, etc.
Voicemail,MMS,
SMS/EMS, etc.
Transactions,Content Services,
Contacts,Gaming,
Core infrastructure and IP Networks
IMSServices
VoIP, IM , POC,Video Telephony
Conferencing,Presence,
Location, etc.
DSL / Ethernet / CableRAN / WiFi
Service Provider Network
Blended Service ExampleCall Routing and TV Service
1
InboundCall
Blending of Voice and TV Services
User decides to forward to VM
3
Incoming Call Notification2
4Call forwarded to VM
SCIM+
All Rights Reserved © Alcatel-Lucent 2006, #####
Slide 30
Another ExampleOutlook Calendar Notifications
Use Case: Receive conference call reminder on cell phone with option for automated call placement.
Call Flow Example:
1. Outlook triggers alert for “conference call”via HTTP or Web Services interface
2. SCIM+ checks presence status of user (i.e. is cell phone on or off?)
3. If cell phone on, SCIM+ sends notification (e.g. via SMS), adding option for automate call placement.
4. If user selects to be placed on conference call, SCIM+ bridges user into conference
5. SCIM+ notifies Outlook via HTTP or Web Services interface to dismiss future reminders.
SessionControl
SCIM+SCIM+
MicrosoftOutlook
Pre-sence
SMSGateway
Conf.Server
11
22
3333
4444
44
55
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Slide 31
Beyond IMS…Building an EcosystemIMS, SDPs and SDEs – Some Soft Definitions
A full function SDE spans the capabilities of traditional telecom vendors and traditional IT vendors.
SDP Service Delivery Platform A misnomer Not a Platform but rather a set of functions traditionally used by IT vendors for creating Business Processes and Web services. SDP Service Delivery Platform A misnomer Not a Platform but rather a set of functions traditionally used by IT vendors for creating Business Processes and Web services.
Application Developers and Providers
Network Infrastructure
End Users• Consumer• Enterprise• MVNOs
OSSBSS
Service Delivery Environment
IMS provides a first step
towards SDEs
IMS
SDE Service Delivery Environment A full ecosystem for the rapid introduction of new services:
Brings together network services with SOA based Web ServicesProvide seamless integration into BSS/OSSEnable the large ecosystem of IT application developers to write new services
SDE Service Delivery Environment A full ecosystem for the rapid introduction of new services:
Brings together network services with SOA based Web ServicesProvide seamless integration into BSS/OSSEnable the large ecosystem of IT application developers to write new services
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Slide 32
Beyond IMS…Challenges
No standards
Lack of alignment on scope and components
Hard definitions are hard to get…still an evolving area…
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Slide 33
Beyond IMS…A View of Nirvana???Unified Communications – Anywhere, Any Device, Anytime
• Goes beyond just voice to include video, email, IM and future applications controlling and interacting with one another
• Communication sessions are invoked through a variety of devices– real time.
• Anytime/anywhere access to call logs, voicemail, corporate directories, personal directories, calendars, mm content
Unified Control
PDAs & Cell Phones
SoftPhonesLaptops/ Remote Workers
Desktop Computers and Phones
Yo Co
Yo Co
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Slide 34
Summary
Networks that in the past were separate are beginning to converge:
Web, telephony, TV are all coming together.
This coming together of networks allows for different levels of “service convergence”:
The first step was to offer service bundling but this is limited.
Service blending on the other hand can offer real differentiation to Service Providers.
Blending relies on unified control across multiple domains:
IMS is a starting place:
Offers an open framework for such unified control through the separation of the session layer from the
application layer and the use of the SCIM.
The development of full “Service Ecosystems”, through SDEs, is the next step forward in the
world of next generation networks.