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WAP as its bearer protocol. MMS will take advan-
tage of the high speed data transport technology
GPRS and support a variety of image, video and
audio formats to facilitate a complete communica-
tions experience.
Architecture
The MMS Centre (MMS-C) is comprised of the
MMS Server, the MMS Proxy-Relay and the MMS
Store. The MMS Centre is the central element of
the MMS network architecture, providing storage
Access Network
Message conversion
The MMS-C is able to perform limited message
conversion - for example, from MMS to SMS - so
that processing and air time is not wasted in send-
ing messages to mobile terminals that do not have
adequate capability to receive them. It also handles
service aspects such as store and forward, guaran-
teed delivery, subscriber preferences, operator
constraints, and billing information. The MMS-C
also vouches for high quality messaging, for exam-
Message
Store
MMS
Server
MMS
WAP/
Relay
PPG
MMS
MMS
Relay
Relay
MMSE
17
and operational support, enabling instant delivery
of multimedia messages from terminal-to-terminal
and terminal-to-email, and supporting flexible
addressing. The centre's MMS Proxy-Relay inter-
acts with the application being run on the MMS-
enabled terminal to provide various messaging
services. WAP or http is used as the bearer of an
MMS message between the MMS-C and the MMS
client (application). The WAP Gateway is used for
delivery and retrieval of messages. Information is
read in the WAP browser.
Operator
Database
User
Database
Internet / Intranet
SMS-C
Multimedia Content Servers
ple by format conversion. This means that the
MMS-C recognizes which formats are supported in
the mobile phone, and adapts the MMS messages
to these formats.
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July 2005
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