TIA/EIA/IS-637:1995

$29.25

Short Message Services for Wideband Spread Spectrum Cellular Systems

Published By	Publication Date	Number of Pages
TIA	1995	88

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Category: TIA

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Description

INTRODUCTION

General Description

The Short Message Service (SMS) allows the exchange of short
alphanumeric messages between a mobile station and the cellular
system and between the cellular system and an external device
capable of transmitting and optionally receiving short messages.
The external device may be a voice telephone, a data terminal or a
short message entry system.

The Short Message Service consists of message entry features,
administration features, and message transmission capabilities.
These features are distributed between a cellular system and the
SMS message center (MC) which together make up the SMS system. The
MC may be either separate from or physically integrated into the
cellular system.

Short message entry features are provided through interfaces to
the MC and the mobile station. Senders use these interfaces to
enter short messages, intended destination addresses, and various
delivery options.

MC interfaces may include features such as audio response
prompts and DTMF reception for dial-in access from voice
telephones, as well as appropriate menus and message entry
protocols for dial in or dedicated data terminal access. Mobile
station interfaces may include keyboard and display features to
support message entry. Additionally, a cellular voice service
subscriber can use normal voice or data features of the mobile
station to call an SMS system to enter a message.

An SMS Teleservice can provide the option of specifying priority
level, future delivery time, message expiration interval, or one or
more of series of short, pre-defined messages.

If supported by the Teleservice, the sender can request
acknowledgments that the message was received by the mobile
station. An SMS recipient, after receiving a short message, can
specify one of a number of pre-defined messages to be returned with
the acknowledgment to the sender.

SMS administration features include message storage, profile
editing, verification of receipt, and status inquiry capabilities.
SMS administration is not within the scope of this standard.

The SMS transmission capabilities provide for the transmission
of short messages to or from an intended mobile station, and the
return of acknowledgments and error messages. These messages and
acknowledgments are transmitted to or from the mobile station
whether it is idle or engaged in a voice or data call.

The cellular service provider may offer SMS transmission to its
cellular voice and data customers only, or may provide an SMS only
service without additional voice or data transmission
capabilities.

The standard also provides for the broadcast of messages. All
available mobile stations on a CDMA Paging Channel can receive a
broadcast message. A broadcast message is not acknowledged by the
mobile station. Broadcast Messaging Services may be made available
to mobile stations on a CDMA Paging Channel as well as mobile
stations in a call on la CDMA Traffic Channel.

Additional information