Transcript Unified Interfaces for Messaging Services

T-109.551 Research Seminar on Telecommuncations
Business II
Unified interfaces
for messaging service
Dan Silfvast
[email protected]
16.4.2003
T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Introduction
• Messaging service
– also known as Value Added Service (VAS)
– provides content or information on a mobile network
• The problem of connecting a VAS to the mobile
network
GSM/SS7
VAS
Messaging
Centre
VAS
VAS
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Agenda
• Technology
– Message types
– Message centre connectivity
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Business
Problems
Solutions
Future trends
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Message types - SMS
• Short message service
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currently the most popular message type
up to 160 characters of 7bit text
utilizes the SS7 signalling channel for delivery
Non realtime
Operator # 1
GSM/ SS7
VAS
SMSC
VAS
VAS
Operator # 2
GSM/ SS7
VAS
SMSC
• Binary SMS
VAS
– Smart messaging
• an open standard developed by Nokia
• supports picture messages, ring tones, business cards etc.
• Not fully compatible with SMS
– Enhanced Messaging Service (EMS)
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open standard developed by 3GPP
supported by Alcatel, Siemens, Motorola and Sony Ericsson
provides text formatting, picture messages, sounds and animations
backwards compatible with SMS
– stores binary data in SMS headers
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Message types – WAP Push
• For pushing WAP content to terminals
– session initiated by content provider
– allows interactive services
• Session initiation request sent over SMS
– normal WAP access used for data transfer
• Part of WAP 1.2 spec.
– supported by most new terminals
GSM
SMSC
Push OTA /
WAP traffic
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Session
Intiation
Request
Push Proxy
Gateway
(PPG)
Push Access
Protocol (PAP)
T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
Push
Initiator
(PI)
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Message types – MMS
• Multimedia Messaging Service
– the latest and ”most beautiful” messaging standard by 3GPP
– supports rich multimedia content with presentation features
– utilizes the data channel for transport
• allows large content size
• wide variety of content formats
– uses WAP for transfer and WAP push over SMS for notifications
Value Added Services
WAP
VAS
GPRS
GGSN
SM SC
Gateway
Push Proxy
MMS Relay/
Server
(MMSC)
VAS
VAS
VAS
VAS
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Message centre connectivity
• The connection between a VAS application and the message
centre
• No standard for SMS
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Four protocols approved by ETSI
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SMPP by Logica
UCP/EMI by CMG
CIMD by Nokia
OIS by Sema
• PAP for Wap Push
• MM7 for MMS
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implementation details not until release 6
uses web service, i.e. SOAP over HTTP for message transfer
proprietary protocols implemented before rel 6
• Nokia EAIF
• Ericsson SMTP
• Other protocols
–
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operator specific wrappers, to increase management
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Business II - Unified Interfaces for Messaging Services
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Messaging business - VAS
• Value Added Service
– external service providing information or content on request
– for example, logos, ring tones, train timetables
– usually accessed by sending a message containing a keyword to a
specific short number
– also push service (e.g. news)
• Important business
– 8% of total traffic but 25% of total value of messaging in 2001 in
Finland
– expected to grow with advent of MMS services
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Messagin business – VAS operation
models
• Three basic models for providing value added
service
– Operator developed service
– Third party service providers with direct connection
– Service aggregators
Operator developed VAS
Operator # 1
SMSC
VAS
VAS
VAS
VAS
VAS
Operator # 2
SMSC
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VAS
VAS
VAS
VAS
VAS
Inter-operator VAS
Operator # 1
Service aggregator
Operator # 1
SMSC
SMSC
VAS
Operator # 2
SMSC
VAS
VAS
Operator # 2
Messging
Middleware
VAS
VAS
VAS
VAS
VAS
SMSC
T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Problems – the VASP viewpoint
• Focus on
– a large as possible user base
– easy service deployment
• Problem areas
– protocol incompatibility
• a large number of different protocols to support
– billing
• every network operator has its own way for billing
– content conversion
• different terminal capabilities
– traffic management
• routing, load balancing etc.?
16.4.2003
T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Problems – the network operator
viewpoint
• Focus on
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traffic management
authentication and access control
billing based on content
billing on receiver pays basis
• Problems
– the message centres and protocol do not provide enough
management features
– no way to secure network from buggy services
– messaging centres not designed for receiver-pays billing
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Solutions – protocol standardization
• Solves the interconnectivity problem
• MMAP
– Mobile Message Access Protocol by SMS Forum
– a web services based approach extended to SMS (and others)
– currently at draft stage
• SMS over MM7
– MIME type for SMS content
– no current standardization work done
• Proprietary APIs
– a lot of messaging middleware provide unified interfaces
– no standardization work done
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Solutions – message gateways
• Middleware for network operator
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management features
protocol conversion
billing
reliability and high availablity
message routing
content conversion and fetching
no multi-network functionality
• Available products
• Content Gateway by CCC
• Nokia Messaging Gateway
Mobile Network Operator
Value Added
Services
VAS
Message
Center
VAS
VAS
Message
gateway
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
VAS
VAS
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Solutions – message routers
• Middleware for service aggregators or operators
with wide installations
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same features as gateways
support for multi-network operation
advanced protocol conversion
load balancing
advanced message routing
Operator # 1
billing interoperability
• Available products
– Logica Open Messaging
Gateway
– First Hop Message Router
– Empower Interactive
Messaging Service Platform
– UniqMinds PEAKm Platform
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Value Added
Services
Message
Center
VAS
Operator # 2
Message
Center
VAS
Message
Router
VAS
VAS
Operator # 3
VAS
Message
Center
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Business II - Unified Interfaces for Messaging Services
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Future trends
• Protocol standardization
– web services based standards
– does not solve the management issues
• The role of messgaing middleware
– focus on service and content management
• The future role of the network operator
– the risk of becoming ”bit-pipe-provider”
– focus on adding value to the services
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billing
access to user data
content conversion
trust services
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Business II - Unified Interfaces for Messaging Services
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Conclusions
• Mobile network interconnectivity goes beyond
protocol incompatibility
– need for management and content conversion
• Protocol standardization will solve only part of the
problem
• The role of messaging middleware will increase as
the operators have to rethink their offerings
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T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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Thanks!
16.4.2003
T-109.551 Research Seminar on Telecommuncations
Business II - Unified Interfaces for Messaging Services
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